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Home My WebLink About20211160.tiffAppendixD Soils Reports Section 24 Soils Report This section addresses the permit application requirements described in Procedural Guide Checklist, soils report and WCC Sections 23-2-510 C.2.c and 23-2-510 C.2.m the criteria described in WCC Sections 23-2-480 A.3, 23-2-480 A.5, 23-2-490 C, and 23-2-490 E. On February 6, 2020, Weld County staff stated that a Natural Resource Conservation Service (NRCS) soils report is not applicable to the TWP and that providing information similar to what was provided in the December 21, 2018 Application would meet the USR application requirements. A summary of that discussion is included in section USR Procedural Guide Checklist. Nevertheless, to be responsive to other WCC requirements, NRCS reports are included in Appendix D in addition to the information that was included in the December 21, 2018 Application as presented in this section. Soils Reports A total of six NRCS soil reports were prepared using the Web Soil Survey (WSS) application (https://websoilsurvey.sc.egov.usda.gov/App/WebSoilSurvey.aspx). The items addressed by these reports include three segments of the water pipeline (B and C - South, C - North, E), the water tank, and two pump stations. The water pipeline was addressed using three reports (segments) instead of a single report due to limitations associated with defining areas of interest for reports in the WSS application. The three water pipeline reports that were provided in Supplement 1 (original reports) are replaced with new reports in this Supplement 2 to reflect the minor water pipeline alignment changes. A comparison of the Suitabilities and Limitations for Use sections in the original and new reports were conducted and the minor revisions to the water pipeline alignment did not result in any changes to the NRCS ratings. The reports for the water tank and two pump stations did not change. Reports are included in Appendix D. NRCS terminology for conditions formerly described as having "moderate or severe limitations" are now described as "very limited". Table 24.1 presents reasons for very limited ratings and associated mitigations proposed by a professional engineer licensed in the State of Colorado. TABLE 24.1 Summary of Very Limited Rating from the TWP NRCS Soil Reports Item Description (Area of Interest') Percent of Area of Primary Reason(s) for Potential Mitigations Interest* Rated as Rating "Very Limited" Water Pipeline Combined limit of permanent and temporary easements; 475 acres Water Tank 1.5 acres Pump Station 1 5 acres 9 Depth to saturated zone, flooding and unstable excavation walls; slope; depth to soft bedrock 0 Not applicable 18 Slope Trenchless construction methods, dewatering n g and shoring; regrading; use of heavy-duty excavation equipment Not applicable Re -grading of site TWP USR SUPPLEMENT 2 SECTION 24 SOILS REPORT 24-1 THORNTON WATER PROJECT WELD COUNTY USR SECOND SUPPLEMENTAL PERMIT APPLICATION TABLE 24.1 Summary of Very Limited Rating from the TWP NRCS Soil Reports Item Description Percent of Area of Primary Reason(s) for Potential Mitigations (Area of Interest* Rated as Rating Interest*) "Very Limited" Pump Station 2 9 acres 100 Shrink/swell soils Over -excavation, moisture conditioning and re -compaction of existing soils, replacement of existing soils or use of deep foundations. *Areas of interest may not be equal to areas of disturbance, but ratings could be used as an indicator for soil limitations in areas of disturbance. Figure 24.1a and Figure 24.1b show soil types per the NRCS, Soil Survey Geographic database, 2019. A subsurface geotechnical investigation of geologic conditions utilizing soil and rock borings will be completed during design to further determine the subsurface soil conditions and associated geological hazards for the TWP. Mitigation measures will be further refined during design to meet site -specific geological hazards and BMPs will be implemented under the S1 MP to minimize or mitigate soil erosion. geologic Hazards A desktop review was conducted to identify the potential for geologic hazards along the TWP. Colorado Geological Survey publishes information about geologic hazards such as abandoned mine lands, avalanches, collapsible soils, corrosive soils, debris flows/mudslides, earthquakes, subsidence, heaving bedrock, landslides, rockfall, and swelling soils. Available maps were reviewed for indications of known geologic hazards. In addition, Weld County's GIS Digital Database, which includes identified geological hazards, was evaluated during the review, with information shown in Figure 24.2a and Figure 24.2b. Based on the desktop review, the majority of the TWP has no identified geologic hazards and the hazards identified are not considered "active". Weld County's GIS Data shows two inactive faults along the water pipeline alignment. Based upon mapping conducted by the Colorado Geological Survey (Colorado Earthquake Hazards Mitigation Council, 2013), the mapped faults identified in Weld County's GIS Data are not identified as quaternary faults (i.e. faults which have been active in the past 1.8 million years) and as such are generally not considered "active". Due to the inactivity of the faults and the lack of recorded earthquakes in the area, the risk of shallow earthquakes and ground movements is considered low.. Construction risks therefore are limited to poor rock. conditions (i.e. fault breccia and gouge), spatially rapid changes in ground conditions across fault zones, and the potential for perched water conditions. Potential mitigation measures in this area include: • Limiting the vertical alignment of the water pipeline to the surficial soils, where sufficient cover exists. • Open -cut construction methods. • Additional dewatering capacity in the case of rapid increases of water inflows. TWP USR SUPPLEMENT 2 SECTION 24 SOILS REPORT 24-2 Thornton Water Project rdirirr Strpp15: & Strinide• Res envorvN . i lc. �. rhrve•r;Rese•rvta; WarerSupply cihe; rrige Rene weol0-ea4 1LBEf�kl NwALrL de- er k semnr: OUGLAS RD RICHARDS LAKE 12D • ;^W '-- . is efr'r: fa l er a I ThL•aike. a J-, VINE -DR Soils Crossed by TWP: 03 Aqualls and Aquents, gravelly substraturrn I Aquolls and Aquepts, flooded Ascalon fine sandy loam, 0 to 6 percent slopes Ascalon sandy loam, 0 to 3 percent slopes Cascajo gravelly sandy loam, 5 to 20 percent slopes Colby loam, 1 to 3 percent slopes Colby loam, 5 to 9 percent slopes Fort Collins loam, 0 to 3 percent slopes Kim loam, 0 to 1 percent slopes Kim loam, 1 to 3 porcont slopos Kim loam, 3 to 5 percent slopes Kim loam, 5 to 9 percent slopes Nelson fine sandy loam, 3 to 9 percent slopes Nunn clay loam, 0 to 1 percent slopes Nunn clay loam, 1 to 3 percent slopes Nurin loam, 1 to 3 percent slopes Olney fine sandy loam, 1 to 3 percent slopes Olney fine sandy loam, 3 to 5 percent slopes Otero sandy loam, 1 to 3 percent slopes Otero sandy loam, 3 to 5 percent slopes Otero sandy loam, 3 to 9 percent slopes Otero sandy loam, 5 to 9 percent slopes Tassel fine sandy loam, 5 to 20 percent slopes Terry sandy loam, 3 to 9 percent slopes Thedalund loam, 0 to 3 percent slopes Thedalund loam, 1 to 3 percent slopes Thedalund-Keota foams, 3 to 9 percent slopes C-1; Weld loam, 1 to 3 percent slopes Wiley -Colby complex, 1 to 3 percent slopes Wiley -Colby complex, 3 to 5 percent slopes C3 03 03 C3 03 C3 CLIS 03 0 03 03 I 1 PROSf?EGT R L Thornton CITY OF THORNTON COLORADO 12450 WASHINGTON ST 4 0 0-$75 [75 Mlles 14 ,1 C.) ,.. 1 `Arleltrl?r take Taer:errh ' �_•-,- t:r• &Nerwon• FIIIFI ! MATi7 HARMONY'RD 11141P in Unincorporated Weld County TWP outside Unincorporated r��■ Weld County -- County Boundary Railroad Lake/Reservoir Water Tank 74 4TH AVE Pump Station 1 4 _ kt-L lutienti -,Qe•.tierWllr . Rena r�f TT SEVERANCE C) _EASTMAN PARK D CR 4-7, U Si OR GR 6A6 -OCR 645 !LUKEN GREELEY Figure 24.1a Soils THORNTON, CO 80241-2405 1/22/2021 1 inch = 1.75 miles Sourcos: N;C$, NI ID • CDWR, Mid Cour,v. CDOT vi:'78888 I HORN I ON MOH I HLRN _ OJbCI 8514 ORUtli_b .1_PhRVI I INCIGISVIAPI-I_LSWY ..D US* hSOUCL_w441�51FbkMI IAPP_202°tSO LS.NXIJ 4OUAw 1 2212021 '1:30:3 I NV Thornton Water Project y r li ^qr , i} `nii 11 I 1 l rte- I^IS^ .I L ,� r- j� ��lL - 1 7 CR `° "� 3 EV NI S v : j �L� T 66 �ti ck �Illl u E I JOHNSTOWlN • :°' rficJJJ * ff 10 7I ), 51 J' �4 ( rte. - . '� 'Luxt�I (-) • n'J•,. elr ,l .. l.u•iGr.• I ,i h7:1-- TilL�CH I ‘ 44 r, ; n GRaa i 56 4�— .1 . AVE El= l:l r El ' t `� c ,I' t --.S •.)}�- S = b. t� BERTHOUD y t MILLIKEN �G-_ �— y ..w f 410 (LL 3-i Ct 42 { R 42 I CO _ � ' 1 < OD'. 4 16 in I L •-r 5 f .7 11rtr-' le 38 CCR - - . - 71. ce 5 Sri r el 1 � -. � c . qty'{ 1. t3 `--. -,�• ♦ 1 '� ' I +�1 ' 70 ----N_ j 4.' V lfighle Lake f I Z , ' Pt..,v -x r:t�+y I H CR 34 IE itA CR•�34 ,-T^;tt? J' inm o ,`'_ 'fit ` 47 {-} CR 32 50 m QI Ll 'I —'i+• }Lrrk�•Tka"si®s7 ,l} � �1r,� `r -`- Lir- -T I - c A RD tVE CR 32 J J �. '':}tail S I nt ti r r}{ ti' J[ r^NrIrr+i J" .•I •I •-.-,r{ , CCU. } -/-e ,rJ - ,ty Ni la 61 -�ti - T— ,66_,;_s;_i i_ , ----MEAD ...n7 cTr-- AyE, I :,...::1 ti y J - - -GI'ai% r ' CR 26 T , fro J;f --_ IHA,E JJ_LgNGJ Ol l ,%. - lI _ i.3 sty _ .► °` �! r= 6_ J 5T�rl "'I r I(_iy �r1ilJ . r - r r u• `u �uE i s -. t 1 �h -r' •..: } I°•,, - c' N. ME T` ' F R ST '` at -24 r -' 1 ..�`, 1 g �- �- ,,r ,� �� 4 J <J , c= - am. lk ' f ()Ai FIRESTONE Z-7 SC-Lpcg �3y �.-+,—ry' InW `y L. -r—. � 4'67 I ?„) �I } Gia � I Ell4t r ?k 1 -„,-44% a r r U�r 85 J �. l -h3 '_ r,Li 11_LAR0SA l PR 20 —JI��l S 21 PYAWCR 20 _, ,.r EFJERICK I DI SCR I SalimillIfif CIZ 1$ • Lake s HAIsl rir �--. Soils Crossed by TWP:iniNr\V' o- ' AAltvan loam, 0 to 1 percent slopes CR 16 is s r !it t� ? I-� CR 16 {tea Aquall5 and Aquents, gravelly substratum ` -71-r c''-'4. II.I_Ty ,� . 4 �1�F — rr II J4quolls and Plquepts, flooded r$: Bankard sandy loam, 0 to 3 percent slopes, frequently flooded z' ux - � . w Ur w1 �k�� C.?T T I ,[��, � :� ti5 1 Heldt silty clay, 1 to 3 slopes r'- — I percent .,.ri Kim loam, 1 l0 3 — _ f 7-: 4.4- ,‘7 ,— lL_ Y '_-'• a�'`r•} Ey �.. r" ` �. ' 6T F1 r4 t i S .-t :6= ,,FORT LUIS 1T ON �� percent slopes /�- y.=.._!'r -�'-`— } L1',L5- E) —t>r5 t ' l— �" \ f i 3R)- 3Ft "'I 2r ,ri C-.5 Km loam, 3 to 5 percent slopes t) t7 �� r ;" i _.r..- IIII�;; 141 ti- Kim loam, 5 to 9 percent slopes I `� ��- en ce - �~ Nunn clay loam, 0 to 1 percent slopes I. : —'--- rx Nunn clay loam, 1 to 3 porcont slopes v Nunn loam, 0 to 1 percent slopes c---3Nunn loam, 1 to 3 percent slopes (at-:---- • - .. Olney fine sandy loam, 1 to 3 percent slopes 'Z Olney fine sandy loam, 3 to 5 percent slopes IACONO I: r I ;' li i; as ,U , s� Olney loamy sand, 1 to 3 percent slopes _ Renohill day loam, 3 to 9 slopes -,3 '_ U c, 1� "' eR 8 percent t-, Tassel fine sandy loam, 5 to 20 percent slopes Thedalund loam, 1 to 3 percent slopesC;\3"S Thedalund loam, to I , �_ + 41 ---- -. Syr - 3 9 percent slopes I CR Ulm clay loam, 3 to 5 slopes _, !. percent Valent sand, 3 to 9 percent slopes I ,� " .c. '1 ._/ j y ` ae Vona loamy sand, 0 to 3 percent slopes ; ' 85 Vona loamy sand, 3 to 5 percent slopes I ,__' -: CZ Vona sandy loam, 1 to 3 percent slopes ORTHGLIENN - �—v ♦ `f� ;� r Vona sandy loam, 3 to 5 percent slopes Ir Pump Station 2 ' , \-I I IL. LOCHBUIE j+E _ •4 Weld loam, 0 to 1 slopes - i - percent Weld loam, 1 to 3 percent slopes 6 av� _ _ �L.` I r k. 'q It Count), _� 1� - V I LINE RD . /t - �L -! .I , __-f . _ - - _''�` � .- _ --�= ---- -rte'- - —f3AS ..�.___.. -, .�---- --- �� i '� ' I I._. - {_, 7 Uti'iley Colby Complex, 0 #01 percent slopes :F f " I �. ? r y• y , ,} u �1 �Off lMS Colt11 J I .E I ,' bar . II CO -r H N kf Wiley -Cal by complex, 1 to 3 percent slopes I LUx -� }y CO IL . --S ( a I 'f < O J i Atu - in Wiley 3 to 5 v '-� - -Colby complex, percent slopes D. o r , -. , IrI re, bHU4it*1 ',} BRIDGE ST _ - _ ,_ 1 f O� IAl 7 ©— �I-. ke - �f k 7 �$r P� ` I , I, , , :� � L.I . r� r -.t ) , i-I- �-ri l 1- ' ' P nLIT (morntonN - '••• TWP in Unincorporated Figure 24.1 b Weld County Soils TWP outside Unincorporated Weld County -- CITY OF THORNTON ' , County Boundary Railroad COLORADO 0.875 1.75 Lake/Reservoir 12450 WASHINGTON ST APllle$ THORNTOtsJ, CO 80241-2405 1 inch = 1.75 miles 1/22/2021 Sourcos: NRCS, NI ID CDWR, Acid Cintli v COOT VJ:\',r? ?a_ I HORN I OIL NOR I HbRM '-tVJtC;I ASIS OROLI-L'_titi.1_I'LRVI I ING°'CCISU1F+I'rl_t5kOr —0_u5 -iLsOucL_uipes\rbsldl IArp 2�2'kSc LS.WXU o•Jur.\ 1 22h021 ' 1:30:3I NV Thornton Water Project 0tt ('motrnton CITY OF THORNTON COLORADO S 0 0875 1.75 TWP in Unincorporated Weld County TWP outside Unincorporated Weld County -- County Boundary Railroad Depth of Cover above River/Stream/ Abandoned Coal Mines Canal/Ditch Lake/Reservoir Fault Line Mine Extent 0-49 50-99 100 - 149 150-199 200 - 249 250 - 299 300 - 349 350 - 399 400 - 9999 _/—'4131 is Cr, I-,: Figure 24.2a Geologic Hazards 12450 WASHINGTON ST THORNTON, CO 80241-2405 1/22/2021 vi:'78888 I HORN I ONMOHIHbRN _•OJbCI RSK OIRM-1_5 .1_PhsVII 'NMI3%11;1"H-t$b ..D US*1jhSOUCL_V1AFSIFLNMIIAPP_2O2°ttbOLOGIG_ AZARDS.NIXU JOvAN1/2220211OM 0:02 AM 1 inch = 1.75 miles Mlles Sou'cns: NI ID. CDINR, A4 old Coin, CDC' Thornton Water Project i If I m— DR. 4- - -,..--sz"1/4:)44,4:1-3)ci../--E.,...7 • 'Y-cIb `. i'• .g I eR . :---1 0 ...."--=.2.1 i6oTHA.vc ,,, 71110entOril MITE+i N} CITY OF THORNTON COLORADO 12450 WASHINGTON ST THORNTON , CO 80241-2405 1/22/2021 0 S 0-875 135 1 inch = 1-75 miles Mlles NORTFIGLEN r. 0 TWP in Unincorporated Weld County TWP outside Unincorporated Weld County -- County Boundary Weil 1€ I H AVE IMPer. in r L = Iiditirettiscifir.)Etizt,;,,0 6 U Railroad River/Stream/ Canal/Ditch Lake/Reservoir Fault Line D Mine Extent Depth of Cover above Abandoned Coal Mines 0-49 50-99 100- 149 150-199 L + C1-!'RUIE J f _)FIC R3 L! r 7 1—I- •' t; � t, �x 200 - 249 250 - 299 300 - 349 350 - 399 400 - 9999 ty SIZI3CEST) Figure 24.2b Geologic Hazards Sources: NI ID. CDINR, Afield Co4n-,r. CDC - WV /MI I HORN ION MOH I FILM -7�OJbCI ASK ORDbR bLe.1 PhRVII INGIGISWAPH_LSWY _U US* hSOUCL AFIeStFLNMI IAPP 2O2tbOLOGIG-AZARDS.6IXU JOvAN11222021lei 0:02 Am THORNTON WATER PROJECT WELD COUNTY USR SUPPLEMENTAL PERMIT APPLICATION Weld County's GIS Data does not show abandoned coal mines along the water pipeline alignment. The water pipeline crosses the historical Boulder -Weld coal field with abandoned mine workings identified at a range of depths, with subsidence features having been reported in regions of relatively shallow mining. A review was conducted of USGS Geologic Investigations Series 1-2735, Version 1.0 (Roberts, Hynes, and Woodward, 2001) maps showing the extent of mining, locations of mine -shafts, adits, air shafts, and bedrock faults, and thickness of overburden above abandoned coal mines in the Boulder -Weld coal field, Boulder, Weld, and Adams Counties. The maps do not indicate undermined areas along the water pipeline alignment. The Colorado Landslide Inventory Map Viewer, (Colorado Geological Survey) was evaluated to view records regarding landslides in Colorado. The viewer contains polygon records of landslides and unstable slope areas digitized from multiple sources and multiple scales by the Colorado Geologic Survey. The viewer does not indicate records of landslides nor unstable slope areas along the water pipeline alignment. In areas with sandy soils and increased sloughing, potential mitigation measures may include, but are not limited to, the following: • Revegetation Soil erosion blankets during construction • Trench less construction methods A subsurface geotechnical investigation of geologic conditions utilizing soil and rock borings will be completed during design of the TWP to further determine the subsurface soil conditions and associated geological hazards. Mitigation measures will be further refined during design to meet site -specific geological hazards. TV'VP USR SUPPLEMENT 2 SECTION 24 SOILS REPORT 24-7 USDA United States al Department of Agriculture \RCS Natural Resources Conservation Service A product of the National Cooperative Soil Survey, a joint effort of the United States Department of Agriculture and other Federal agencies, State agencies including the Agricultural Experiment Stations, and local participants Custom Soil Resource Report for Larimer County Area, Colorado; Weld County, Colorado, Northern Part; and Weld County, Colorado, Southern Part Segment E January 12, 2021 Preface Soil surveys contain information that affects land use planning in survey areas. They highlight soil limitations that affect various land uses and provide information about the properties of the soils in the survey areas. Soil surveys are designed for many different users, including farmers, ranchers, foresters, agronomists, urban planners, community officials, engineers, developers, builders, and home buyers. Also, conservationists, teachers, students, and specialists in recreation, waste disposal, and pollution control can use the surveys to help them understand, protect, or enhance the environment. Various land use regulations of Federal, State, and local governments may impose special restrictions on land use or land treatment. Soil surveys identify soil properties that are used in making various land use or land treatment decisions_ The information is intended to help the land users identify and reduce the effects of soil limitations on various land uses. The landowner or user is responsible for identifying and complying with existing laws and regulations. Although soil survey information can be used for general farm, local, and wider area planning, onsite investigation is needed to supplement this information in some cases. Examples include soil quality assessments (http://www.nres.usda.gov/wps/ portal/arcs/main/soils/health/) and certain conservation and engineering applications. For more detailed information, contact your local USDA Service Center (https://offices.sc.egov.usda.gov/locator/app?agency=arcs) or your NRCS State Soil Scientist (http://www.nres.usda.govtwps/portal/nres/detail/soils/contactus/? ci d = n res 142 p2_053951). Great differences in soil properties can occur within short distances. Some soils are seasonally wet or subject to flooding. Some are too unstable to be used as a foundation for buildings or roads. Clayey or wet soils are poorly suited to use as septic tank absorption fields. A high water table makes a soil poorly suited to basements or underground installations. The National Cooperative Soil Survey is a joint effort of the United States Department of Agriculture and other Federal agencies, State agencies including the Agricultural Experiment Stations, and local agencies. The Natural Resources Conservation Service (NRCS) has leadership for the Federal pad of the National Cooperative Soil Survey. Information about soils is updated periodically. Updated information is available through the NRCS Web Soil Survey, the site for official soil survey information. The U.S. Department of Agriculture (USDA) prohibits discrimination in all its programs and activities on the basis of race, color, national origin, age, disability, and where applicable, sex, marital status, familial status, parental status, religion, sexual orientation, genetic information, political beliefs, reprisal, or because all or a part of an individual's income is derived from any public assistance program. (Not all prohibited bases apply to all programs.) Persons with disabilities who require 2 alternative means for communication of program information (Braille, large print, audiotape, etc.) should contact USDA's TARGET Center at (202) 720-2600 (voice and TDD). To file a complaint of discrimination, write to USDA, Director, Office of Civil Rights, 1400 Independence Avenue, S.W., Washington, D.C. 20250-9410 or call (800) 795-3272 (voice) or (202) 720-6382 (TDD). USDA is an equal opportunity provider and employer. 3 Contents Preface 2 How Soil Surveys Are Made..6 Soil Map 9 Soil Map10 Legend 11 Map Unit Legend13 Map Unit Descriptions14 Larimer County Area, Colorado 17 5 Aquepts, loamy 17 7 -Ascalon sandy loam, 0 to 3 percent slopes 18 8 -Ascalon sandy loam, 3 to 5 percent slopes 19 22 Caruso clay loam, 0 to 1 percent slope 21 26 Cushman fine sandy loam, 0 to 3 percent slopes 22 53 Kim loam, 1 to 3 percent slopes23 60 Larim gravelly sandy loam, 5 to 40 percent slopes25 71 Nelson fine sandy loam, 3 to 9 percent slopes 26 77 Otero sandy loam, 0 to 3 percent slopes 27 78 Otero sandy loam, 3 to 5 percent slopes 28 79 Otero sandy loam, 5 to 9 percent slopes 30 80 Otero -Nelson sandy loamy, 3 to 25 percent slopes.31 107 Thedalund loam, 0 to 3 percent slopes 33 108 Thedalund loam, 3 to 9 percent slopes 34 135 Water 35 Weld County, Colorado, Northern Part 36 4 -Ascalon fine sandy loam, 0 to 6 percent slopes 36 47 Otero sandy loam, 3 to 9 percent slopes 37 65 —Terry sandy loam, 3 to 9 percent slopes 38 67 Thedalund-Keota loamy, 3 to 9 percent slopes 40 Weld County, Colorado, Southern Part 42 4 Aquolls and Aquepts, flooded..42 5 Ascalon sandy loam, 0 to 3 percent slopes 43 24 Fort Collins loam, 0 to 3 percent slopes.45 31 Kim loam, 0 to 1 percent slopes46 32 Kim loam, 1 to 3 percent slopes47 33 Kim loam, 3 to 5 percent slopes48 34 Kim loam, 5 to 9 percent slopes49 38 Nelson fine sandy loam, 3 to 9 percent slopes 51 40 Nunn loam, 1 to 3 percent slopes.52 47 Olney fine sandy loam, 1 to 3 percent slopes 53 48 Olney fine sandy loam, 3 to 5 percent slopes 55 51 Otero sandy loam, 1 to 3 percent slopes 56 52 Otero sandy loam, 3 to 5 percent slopes 57 53 Otero sandy loam, 5 to 9 percent slopes 58 61 Tassel fine sandy loam, 5 to 20 percent slopes.59 4 Custom Soil Resource Report 64 Thedalund loam, I to 3 percent slopes 60 Soil Information for All Uses62 Suitabilities and Limitations for Use 62 Building Site Development62 Shallow Excavations (Segment E).62 Soil Reports73 Building Site Development73 Roads and Streets, Shallow Excavations, and Lawns and Landscaping (Segment E) 73 References.82 5 How Soil Surveys Are Made Soil surveys are made to provide information about the soils and miscellaneous areas in a specific area. They include a description of the soils and miscellaneous areas and their location on the landscape and tables that show soil properties and limitations affecting various uses_ Soil scientists observed the steepness, length, and shape of the slopes; the general pattern of drainage; the kinds of crops and native plants; and the kinds of bedrock. They observed and described many soil profiles_ A soil profile is the sequence of natural layers, or horizons, in a soil. The profile extends from the surface down into the unconsolidated material in which the soil formed or from the surface down to bedrock. The unconsolidated material is devoid of roots and other living organisms and has not been changed by other biological activity. Currently, soils are mapped according to the boundaries of major land resource areas (MLRAs). MLRAs are geographically associated land resource units that share common characteristics related to physiography, geology, climate, water resources, soils, biological resources, and land uses (USDA, 2006). Soil survey areas typically consist of parts of one or more MLRA. The soils and miscellaneous areas in a survey area occur in an orderly pattern that is related to the geology, landforms, relief, climate, and natural vegetation of the area. Each kind of soil and miscellaneous area is associated with a particular kind of landform or with a segment of the landform. By observing the soils and miscellaneous areas in the survey area and relating their position to specific segments of the landform, a soil scientist develops a concept, or model, of how they were formed. Thus, during mapping, this model enables the soil scientist to predict with a considerable degree of accuracy the kind of soil or miscellaneous area at a specific location on the landscape. Commonly, individual soils on the landscape merge into one another as their characteristics gradually change. To construct an accurate soil map, however, soil scientists must determine the boundaries between the soils_ They can observe only a limited number of soil profiles. Nevertheless, these observations, supplemented by an understanding of the soil -vegetation -landscape relationship, are sufficient to verify predictions of the kinds of soil in an area and to determine the boundaries_ Soil scientists recorded the characteristics of the soil profiles that they studied. They noted soil color, texture, size and shape of soil aggregates, kind and amount of rock fragments, distribution of plant roots, reaction, and other features that enable them to identify soils. After describing the soils in the survey area and determining their properties, the soil scientists assigned the soils to taxonomic classes (units). Taxonomic classes are concepts. Each taxonomic class has a set of soil characteristics with precisely defined limits_ The classes are used as a basis for comparison to classify soils systematically. Soil taxonomy, the system of taxonomic classification used in the United States, is based mainly on the kind and character of soil properties and the arrangement of horizons within the profile_ After the soil 6 Custom Soil Resource Report scientists classified and named the soils in the survey area, they► compared the individual soils with similar soils in the same taxonomic class in other areas so that they could confirm data and assemble additional data based on experience and research. The objective of soil mapping is not to delineate pure map unit components; the objective is to separate the landscape into landforms or landform segments that have similar use and management requirements. Each map unit is defined by a unique combination of soil components and/or miscellaneous areas in predictable proportions. Some components may be highly contrasting to the other components of the map unit. The presence of minor components in a map unit in no way diminishes the usefulness or accuracy of the data. The delineation of such landforms and landform segments on the map provides sufficient information for the development of resource plans. If intensive use of small areas is planned, onsite investigation is needed to define and locate the soils and miscellaneous areas. Soil scientists make many field observations in the process of producing a soil map. The frequency of observation is dependent upon several factors, including scale of mapping, intensity of mapping, design of map units, complexity of the landscape, and experience of the soil scientist. Observations are made to test and refine the soil -landscape model and predictions and to verify the classification of the soils at specific locations. Once the soil -landscape model is refined, a significantly smaller number of measurements of individual soil properties are made and recorded. These measurements may include field measurements, such as those for color, depth to bedrock, and texture, and laboratory measurements, such as those for content of sand, silt, clay, salt, and other components. Properties of each soil typically vary from one point to another across the landscape. Observations for map unit components are aggregated to develop ranges of characteristics for the components. The aggregated values are presented. Direct measurements do not exist for every property presented for every map unit component. Values for some properties are estimated from combinations of other properties. While a soil survey is in progress, samples of some of the soils in the area generally are collected for laboratory analyses and for engineering tests. Soil scientists interpret the data from these analyses and tests as well as the field -observed characteristics and the soil properties to determine the expected behavior of the soils under different uses. Interpretations for all of the soils are field tested through observation of the soils in different uses and under different levels of management. Some interpretations are modified to fit local conditions, and some new interpretations are developed to meet local needs. Data are assembled from other sources, such as research information, production records, and field experience of specialists. For example, data on crop yields under defined levels of management are assembled from farm records and from field or plot experiments on the same kinds of soil. Predictions about soil behavior are based not only on soil properties but also on such variables as climate and biological activity. Soil conditions are predictable over long periods of time, but they are not predictable from year to year. For example, soil scientists can predict with a fairly high degree of accuracy that a given soil will have a high water table within certain depths in most years, but they cannot predict that a high water table will always be at a specific level in the soil on a specific date. After soil scientists located and identified the significant natural bodies of soil in the survey area, they drew the boundaries of these bodies on aerial photographs and 7 Custom Soil Resource Report identified each as a specific map unit. Aerial photographs show trees, buildings, fields, roads, and rivers, all of which help in locating boundaries accurately. Soil Map The soil map section includes the soil map for the defined area of interest, a list of soil map units on the map and extent of each map unit, and cartographic symbols displayed on the map. Also presented are various metadata about data used to produce the map, and a description of each soil map unit. 9 Felt 0 IDD 5030 12©00 18000 Nap prrjection: Web Merftor Cane- coordinates: WGaS I Edge tiS: UrN Zone 13N Wa584 10 Custom Soil Resource Report MAP LEGEND Area of Interest (AQI) Area of Interest (AOI) Soils O Soil Map Unit Polygons Soil Map Unit Lines Soil Map Unit Points Special Point Features t, Blowout Borrow Pit Clay Spot Closed Depression Gravel Pit Gravelly Spot Landfill Lava Flow Marsh or swamp Mine or Quarry Miscellaneous Water Perennial Water Rock Outcrop Saline Spot Sandy Spot Severely Eroded Spot Sinkhole Slide or Slip Sodic Spot JP - 51.. 4i a Spoil Area Stony Spot Very Stony Spot Wet Spot Other Special Line Features Water Features Streams and Canals Transportation Rails Interstate Highways US Routes Major Roads Local Roads Background Aerial Photography MAP INFORMATION The soil surveys that comprise your AOI were mapped at 1:24,000. Please rely on the bar scale on each map sheet for map measurements. Source of Map: Natural Resources Conservation Service Web Soil Survey URL: Coordinate System: Web Mercator (EPSG:3857) Maps from the Web Soil Survey are based on the Web Mercator projection, which preserves direction and shape but distorts distance and area. A projection that preserves area, such as the Albers equal-area conic projection, should be used if more accurate calculations of distance or area are required. This product is generated from the USDA-NRCS certified data as of the version date(s) listed below. Soil Survey Area: Larimer County Area, Colorado Survey Area Data: Version 15, Jun 9, 2020 Soil Survey Area: Weld County, Colorado, Northern Part Survey Area Data: Version 15, Jun 5, 2020 Soil Survey Area: Weld County, Colorado, Southern Part Survey Area Data: Version 19, Jun 5, 2020 Your area of interest (AOl) includes more than one soil survey area. These survey areas may have been mapped at different scales, with a different land use in mind, at different times, or at different levels of detail. This may result in map unit symbols, soil properties, and interpretations that do not completely agree across soil survey area boundaries. Soil map units are labeled (as space allows) for map scales 1:50,000 or larger. Date(s) aerial images were photographed: Jul 19, 2€18 -Aug 12, 2018 Custom Soil Resource Report MAP LEGEND MAP INFORMATION The orthophoto or other base map on which the soil lines were compiled and digitized probably differs from the background imagery displayed on these maps. As a result, some minor shifting of map unit boundaries may be evident. Custom Soil Resource Report Map Unit Legend Map Unit Symbol Map Unit Name Acres in AOI Percent of AOl 5 Aquepts, loamy 6.7 5.7% 7 Ascalon sandy loam, 0 to 3 percent slopes 5.5 4.7% 8 Ascalon sandy loam, 3 to 5 percent slopes 0.3 0.3% 22 Caruso clay loam, 0 to 1 percent slope 0.1 0.1% 26 Cushman fine sandy loam, 0 to 3 percent slopes 0.7 0.6% 53 Kim loam, 1 to 3 percent slopes 6.9 5.8% 60 Larim gravelly sandy 40 percent slopes loam, 5 to 1.0 0.8% 71 Nelson fine sandy loam, 3 to 9 percent slopes 1.4 1.2% 77 Otero sandy loam, 0 to 3 percent slopes 4.4 3.8% 78 Otero sandy loam, 3 to 5 percent slopes 3.4 2.9% 79 Otero sandy percent loam, 5 to 9 slopes 0.8 0.6% 80 Otero -Nelson sandy 25 percent slopes lawns, 3 to 0.1 0.1% 107 Thedalund loam, 0 to 3 percent slopes 4.3 3.6% 108 Thedalund loam, 3 to 9 percent slopes 1.2 1.0% 136 Water 0.2 0.1% Subtotals for Soil Survey Area 36.9 31.2% Totals for Area of Interest 118.2 100.0% Map Unit Symbol Map Unit Name Acres in AO1 Percent of AOl 4 Ascalon fine sandy loam, 0 to 6 percent slopes 4.1 3.5% 47 Otero sandy loam, 3 to 9 percent slopes 3.5 3.0% 65 Terry sandy loam, 3 to 9 percent slopes 2.0 1.7% 67 Thedalund-Keota loamy, 3 to 9 percent slopes 1.2 1.0% Subtotals for Soil Survey Area 10.8 9.1% Totals for Area of Interest 118.2 100.0% 13 Custom Soil Resource Report Map Unit Symbol Map Unit Name Acres in AOl Percent of AOI 4 Aquolls and Aquepts, flooded 8.7 7.4% 5 Ascalon sandy loam, 0 to 3 percent slopes 14.0 11.8% 24 Fort Collins loam, 0 to 3 percent slopes 2.3 1.9% 31 Kim loam, 0 to 1 percent slopes 2.1 1.7% 32 Kim loam, 1 to 3 percent slopes 23.5 19.9% 33 Kim loam, 3 to 5 percent slopes 1.3 1.1% 34 Kim loam, 5 to 9 percent slopes 1.3 1.1% 38 Nelson fine sandy percent slopes loam, 3 to 9 5.6 4.8% 40 Nurn loam, 1 to 3 percent slopes 0.6 0.5% 47 Olney fine sandy loam, 1 to 3 percent slopes 0.2 0.2% 48 Olney fine sandy loam, 3 to 5 percent slopes 1.1 1.0% 51 Otero sandy loam, 1 to 3 percent slopes 0.7 0.6% 52 Otero sandy loam, percent slopes 3 to 5 3.6 3.0% 53 Otero sandy loam, 5 to 9 percent slopes 3.4 2.9% 61 Tassel fine sandy loam, 5 to 20 percent slopes 1.0 0.8% 64 Thedalund loam, 1 to 3 percent slopes 1.2 1.0% Subtotals for Soil Survey Area 70.5 59.6% Totals for Area of Interest 118.2 100.0% Map Unit Descriptions The map units delineated on the detailed soil maps in a soil survey represent the soils or miscellaneous areas in the survey area. The map unit descriptions, along with the maps, can be used to determine the composition and properties of a unit. A map unit delineation on a soil map represents an area dominated by one or more major kinds of soil or miscellaneous areas. A map unit is identified and named according to the taxonomic classification of the dominant soils. Within a taxonomic class there are precisely defined limits for the properties of the soils. On the landscape, however, the soils are natural phenomena, and they have the characteristic variability of all natural phenomena. Thus, the range of some observed properties may extend beyond the limits defined for a taxonomic class. Areas of soils of a single taxonomic class rarely, if ever, can be mapped without including areas of other taxonomic classes. Consequently, every map unit is made up of the soils or miscellaneous areas for which it is named and some minor components that belong to taxonomic classes other than those of the major soils. 14 Custom Soil Resource Report Most minor soils have properties similar to those of the dominant soil or soils in the map unit, and thus they do not affect use and management. These are called n oncontrasting, or similar, components. They may or may not be mentioned in a particular map unit description. Other minor components, however, have properties and behavioral characteristics divergent enough to affect use or to require different management. These are called contrasting, or dissimilar, components. They generally are in small areas and could not be mapped separately because of the scale used. Some small areas of strongly contrasting soils or miscellaneous areas are identified by a special symbol on the maps. If included in the database for a given area, the contrasting minor components are identified in the map unit descriptions along with some characteristics of each. A few areas of minor components may not have been observed, and consequently they are not mentioned in the descriptions, especially where the pattern was so complex that it was impractical to make enough observations to identify all the soils and miscellaneous areas on the landscape. The presence of minor components in a map unit in no way diminishes the u sefulness or accuracy of the data. The objective of mapping is not to delineate pure taxonomic classes but rather to separate the landscape into landforms or landform segments that have similar use and management requirements. The delineation of such segments on the map provides sufficient information for the development of resource plans. If intensive use of small areas is planned, however, o nsite investigation is needed to define and locate the soils and miscellaneous areas An identifying symbol precedes the map unit name in the map unit descriptions. Each description includes general facts about the unit and gives important soil properties and qualities. Soils that have profiles that are almost alike make up a soil series. Except for differences in texture of the surface layer, all the soils of a series have major horizons that are similar in composition, thickness, and arrangement. Soils of one series can differ in texture of the surface layer, slope, stoniness, salinity, degree of erosion, and other characteristics that affect their use. On the basis of such differences, a soil series is divided into soil phases. Most of the areas shown on the detailed soil maps are phases of soil series. The name of a soil phase commonly indicates a feature that affects use or management. For example, Alpha silt loam, 0 to 2 percent slopes, is a phase of the Alpha series. Some map units are made up of two or more major soils or miscellaneous areas. These map units are complexes, associations, or undifferentiated groups. A complex consists of two or more soils or miscellaneous areas in such an intricate pattern or in such small areas that they cannot be shown separately on the maps. The pattern and proportion of the soils or miscellaneous areas are somewhat similar in all areas. Alpha -Beta complex, 0 to 6 percent slopes, is an example. An association is made up of two or more geographically associated soils or miscellaneous areas that are shown as one unit on the maps. Because of present or anticipated uses of the map units in the survey area, it was not considered practical or necessary to map the soils or miscellaneous areas separately. The pattern and relative proportion of the soils or miscellaneous areas are somewhat similar. Alpha -Beta association, 0 to 2 percent slopes, is an example. An undifferentiated group is made up of two or more soils or miscellaneous areas that could be mapped individually but are mapped as one unit because similar interpretations can be made for use and management. The pattern and proportion 15 Custom Soil Resource Report of the soils or miscellaneous areas in a mapped area are not uniform. A.n area can be made up of only one of the major soils or miscellaneous areas, or it can be made up of all of them. Alpha and Beta soils, 0 to 2 percent slopes, is an example. Some surveys include miscellaneous areas. Such areas have little or no soil material and support little or no vegetation. Rock outcrop is an example. 16 Custom Soil Resource Report Larimer County Area, Colorado 5 Aquepts, loamy Map Unit Setting National map unit symbol: jpws Elevation: 4,500 to 6,700 feet Mean annual precipitation: 12 to 18 inches Mean annual air temperature: 39 to 50 degrees F Frost -free period: 80 to 140 days Farmland classification: Not prime farmland Map Unit Composition Aquepts and similar soils: 80 percent Minor components: 20 percent Estimates are based on observations, descriptions, and transects of the rnapunit. Description of Aquepts Setting Landforrn: Draws, depressions, stream terraces Landform position (three-dimensional): Base slope, tread, dip Down -slope shape: Linear Across -slope shape: Linear Parent material: Loamy alluvium Typical profile H1 - 0 to 60 inches: variable Properties and qualities Slope: 0 to 3 percent Depth to restrictive feature: More than 80 inches Drainage class: Very poorly drained Runoff class: Negligible Capacity of the most limiting, layer to transmit water (Ksat): Moderately high to very high (0.60 to 99.90 inlh r) Depth to water table: About 6 to 18 inches Frequency of flooding: RareNone Frequency of ponding: None Interpretive groups Land capability classification (irrigated): 5w Land capability classification (nonirrigated): 3w Hydrologic Soil Group: ND Hydric soil rating: Yes Minor Components Kim Percent of map unit: 5 percent Hydric soil rating: No Stoneham Percent of map unit 5 percent Hydric soil rating: No 17 Custom Soil Resource Report Fort collins i ns Percent of map unit: 5 percent Hydric soil rating: No Nunn Percent of map unit: 5 percent Hydric soil rating: No 7 Ascalon sandy loam, 0 to 3 percent slopes Map Unit Setting National map unit symbol: 2sw13 Elevation: 3,870 to 5,960 feet Mean annual precipitation: 12 to 16 inches Mean annual air temperature: 46 to 57 degrees F Frost -free period: 135 to 160 days Farmland classification: Prime farmland if irrigated Map Unit Composition Ascalon and similar soils: 85 percent Minor components: 15 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Ascalon Setting Lan dform: I nterfl uves Landform position (two-dimensional): Summit Down -slope shape: Linear Across -slope shape: Linear Parent material: Wind -reworked alluvium and/or calcareous sandy eolian deposits Typical profile Ap - 0 to 6 inches: sandy loam Bt1 - 6 to 12 inches: sandy clay loam 8t2 - 12 to 19 inches: sandy clay loam Bk - 19 to 35 inches: sandy clay loam C - 35 to 80 inches: sandy loam Properties and qualities Slope: 0 to 3 percent Depth to restrictive feature: More than 80 inches Drainage class: Well drained Runoff class: Low Capacity of the most limiting layer to transmit water (Ksat): Moderately high to high (0.60 to 2.00 inlhr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Calcium carbonate, maximum content: 10 percent Custom Soil Resource Report Maximum salinity: Nonsaline to very slightly saline (0.1 to 2.0 mmhoslcm) Sodium adsorption ratio, maximum: 1.0 Available water capacity: Moderate (about 7.7 inches) Interpretive groups Land capability classification (irrigated): 3e Land capability classification (nonirrigated): 4c Hydrologic Soil Group: B Ecological site: R067BY024CO - Sandy Plains Hydric soil rating: No Minor Components Olnest Percent of map unit: 10 percent Landform: I nterfl uves Landform position (two-dimensional): Summit Landform position (three-dimensional), Tread Down -slope shape: Linear Across -slope shape: Linear Ecological site: R067BY024CO - Sandy Plains Hydric soil rating: No Vona Percent of map unit: 5 percent Landform: I nterfl uves Landform position (two-dimensional): Summit Down -slope shape: Linear Across -slope shape: Linear Ecological site: R067BY024CO - Sandy Plains Hydric soil rating: No 8 Ascalon sandy loam, 3 to 5 percent slopes Map Unit Setting National map unit symbol: 2tlnt Elevation: 3,550 to 5,970 feet Mean annual precipitation: 12 to 16 inches Mean annual air temperature: 46 to 57 degrees F Frost -free period: 135 to 160 days Farmland classification: Prime farmland if irrigated Map Unit Composition Ascalon and similar soils: 80 percent Minor components: 20 percent Estimates are based on observations, descriptions, and transacts of the mapunit. Description of Ascalon Setting Landform: lnterfluves uves 19 Custom Soil Resource Report Landform position (two-dimensional): Shoulder, summit Landform position (three-dimensional): Interfluve Down -slope shape: Linear Across -slope shape: Linear Parent material: Wind -reworked alluvium and/or calcareous sandy eolian deposits Typical profile Ap - 0 to 6 inches: sandy loam Bt? - 6 to 12 inches: sandy clay loam Bt2 - 12 to 19 inches: sandy clay loam Bk - 19 to 35 inches: sandy clay loam C - 35 to 80 inches: sandy loam Properties and qualities Slope: 3 to 5 percent Depth to restrictive feature: More than 80 inches Drainage class: Well drained Runoff class: Low Capacity of the most limiting layer to transmit water 'Ksat): Moderately high to high (0.60 to 6.00 in/hr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Calcium carbonate, maximum content: 10 percent Maximum salinity: Nonsaline (0.1 to 1.9 mmhos/cm) Sodium adsorption ratio, maximum: 1.0 Available water capacity: Moderate (about 6.9 inches) Interpretive groups Land capability classification (irrigated): 3e Land capability classification (nonirrigated): 4c Hydrologic Soil Group: B Ecological site: R067BY024C0 - Sandy Plains, R072XY111 IBS Sandy Plains Hydric soil rating: No Minor Components Stoneham Percent of map unit: 10 percent Landform: lnterfluves uves Landform position (two-dimensional): Shoulder, summit Landfo►rm position (three-dimensional): Interfluve Down -slope shape: Linear Across -slope shape: Linear Ecological site: R0I2XY1 OOKS - Loamy Tableland , R067BY002CO - Loamy Plains Hydric soil rating: No Vona Percent of map unit: 8 percent Landform: I nterfl uves Landform position (two-dimensional): Backslope, footslope, shoulder Landform position (three-dimensional): Interfluve Down -slope shape: Linear Across -slope shape: Linear Ecological site: R067BY024Co - Sandy Plains, 8072 Y111 IBS - Sandy Plains Hydric soil rating►: No 20 Custom Soil Resource Report Platner Percent of map unit. 2 percent Landform: I nterfl uves Landform position (two-dimensional): Summit Landform position (three-dimensional): Interfluve Down -slope shape: Linear Across -slope shape: Linear Ecological site: R0I XY100KS - Loamy Tableland , Ro87BY002CO - Loamy Plains Hydric soil rating: No 22 Caruso clay loam, 0 to 1 percent slope Map Unit Setting National map unit symbol: jpvt Elevation: 4,800 to 5,500 feet Mean annual precipitation: 13 to 15 inches Mean annual air temperature: 48 to 50 degrees F Frost -free period: 135 to 150 days Farmland classification: Prime farmland if irrigated Map Unit Composition Caruso and similar soils: 85 percent Minor components: 15 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Caruso Setting Landform: Stream terraces, flood -plain steps Landform position (three-dimensional): Tread Down -slope shape: Linear Across -slope shape: Linear Parent material: Mixed alluvium Typical profile Hi - 0 to 35 inches: clay loam H2 - 35 to 44 inches: fine sandy loam, sandy loam H2 - 35 to 44 inches: sand, gravelly sand H3 - 44 to 60 inches: H3 - 44 to 60 inches: Properties and qualities Slope: 0 to 1 percent Depth to restrictive feature: More than 80 inches Drainage class: Somewhat poorly drained Runoff class: High Capacity of the most limiting layer to transmit water (Ksat): Moderately low to moderately high (0.06 to 0.20 inlhr) Depth to water table: About 24 to 48 inches 21 Custom Soil Resource Report Frequency of flooding: OccasionalNone Frequency ofponding: None Calcium carbonate, maximum content: 5 percent Maximum salinity: Nonsaline to very slightly saline (0.0 to 2.0 mmhos/cm) Available water capacity: High (about 9.8 inches) Interpretive groups Land capability classification 'irrigated): 3w Land capability classification 'nonirrigated): 5w Hydrologic Soil Group: D Hydric soil rating: No Minor Components Loveland Percent of map unit: 9 percent Landform: Terraces Hydric soil rating: Yes Fluvaquents Percent of map unit: 6 percent Landform: Terraces Hydric soil rating: Yes 26 Cushman fine sandy loam, 0 to 3 percent slopes Map Unit Setting National map unit symbol: jpvy Elevation: 4,890 to 5,800 feet Mean annual precipitation: 13 to 15 inches Mean annual air temperature: 48 to 50 degrees F Frost -free period: 135 to 150 days Farmland classification: Farmland of statewide importance Map Unit Composition Cushman and similar soils: 90 percent Minor components: 10 percent Estimates are based on observations, descriptions, and transacts of the mapunit. Description of Cushman Setting Landform position (three-dimensional): Base slope Down -slope shape: Linear Across -slope shape: Linear Parent material: Material weathered from sandstone and shale Typical profile H1 - 0 to 2 inches: fine sandy loam H2 - 2 to 13 inches: clay loam, sandy clay loam, loam H2 - 2 to 13 inches: loam Custom Soil Resource Report H2 - 2 to 13 inches: weathered bedrock H3 - 13 to 31 inches: H4 - 31 to 35 inches: Properties and qualities Slope: o to 3 percent Depth to restrictive feature: 20 to 40 inches to paralithic bedrock Drainage class: Well drained Runoff class: Medium Capacity of the most limiting layer to transmit water (Ksat): Moderately low to moderately high (0.06 to 0.20 inlhr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Calcium carbonate, maximum content: 10 percent Maximum salinity: Nonsaline to very slightly saline (0.0 to 2.0 mmhoslcm) Available water capacity: Moderate (about 8.5 inches) Interpretive groups Land capability classification (irrigated): 4e Land capability classification (nonirrigated): 3e Hydrologic Soil Group: Ecological site: R06IXY0U2CO - Loamy Plains Hydric soil rating: No Minor Components Tassel Percent of map unit: 5 Hydric soil rating: No Stoneham Percent of map unit: 5 Hydric soil rating: No percent percent 53 Kim loam, I to 3 percent slopes Map Unit Setting National map unit symbol: jpwx Elevation: 4,800 to 5,600 feet Mean annual precipitation: 13 to 15 inches Mean annual air temperature: 48 to 50 degrees F Frost -free period: 135 to 150 days Farmland classification: Prime farmland if irrigated Map Unit Composition Kim and similar soils: 90 percent Minor components: 10 percent Estimates are based onobservations,descriptions, and transects of the mapunit. Custom Soil Resource Report Description of Kim Setting Landform: Fans Landform position (three-dimensional): Base slope Down -slope shape: Linear Across -slope shape: Linear Parent material: Mixed alluvium Typical profile H9 - 0 to 7 inches: loam H2 - 7 to 60 inches: loam, clay loam, sandy clay loam H2 - 7 to 60 inches: H2 - 7 to 60 inches: Properties andqualities Slope: 1 to 3 percent Depth to restrictive feature: More than 80 inches Drainage class: Well drained Runoff class: Low Capacity of the most limiting layer to transmit water (Ksat): Moderately high to high (0.60 to 2.00 in/hr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ,pon ding: None calcium carbonate, maximum content: 15 percent Maximum salinity: Nonsaline to slightly saline (0.0 to 4.0 mmhoslcm) Available water capacity: Very high (about 26.5 inches) Interpretive groups Land capability classification (irrigated): 2e Land capability classification (nonirrigated): 4e Hydrologic Soil Group: B Ecological site: R067Y002O - Loamy Plains Hydric soil rating: No Minor Components Fort collins i ns Percent of map unit: 6 Hydric soil rating: No Stoneham Percent of map unit: 3 Hydric soil rating: No Aquic haplustolls Percent of map unit 1 Landform:.wales Hydric soil rating: Yes percent percent percent Custom Soil Resource Report 60 Larim gravelly sandy loam, 5 to 40 percent slopes Map Unit Setting National map unit symbol: jpx5 Elevation: 4,800 to 6,300 feet Mean annual precipitation: 13 to 15 inches Mean annual air temperature: 47 to 49 degrees F Frost -free period: 135 to 150 days Farmland classification: Not prime farmland Map Unit Composition Larim and similar soils: 85 percent Minor components: 15 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Larim Setting Landform: Terraces, benches, fans Landform position (three-dimensional): Side slope, base slope, riser Down -slope shape: Linear Across -slope shape: Linear Parent material: Mixed alluvium Typical profile Hi - 0 to 4 inches: gravelly sandy loam H2 - 4 to 15 inches: very gravelly sandy clay loam, very gravelly clay loam H2 - 4 to 15 inches: very gravelly loamy sand, very gravelly sand H3 - 15 to 60 inches: H3 - 15 to 60 inches: Properties and qualities Slope: 5 to 40 percent Depth to restrictive feature: More than 80 inches Drainage class: Well drained Runoff class: High Capacity of the most limiting layer to transmit water (Ksat): Moderately high to high (0.60 to 2.00 inlhr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Calcium carbonate, maximum content: 15 percent Maximum salinity: Nonsaline to very slightly saline (0.0 to 2.0 mmhoslcm) Available water capacity: Low (about 5.4 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification ('nonirrigated): 6e Hydrologic Soil Group: B Ecological site: R049XB215CO - Gravelly Foothill 25 Custom Soil Resource Report Hydric soil rating: No Minor Components Midway Percent of map unit: 8 Hydric soil rating: No Tassel Percent of map unit: 7 Hydric soil rating: No percent percent 71 Nelson fine sandy loam, 3 to 9 percent slopes Map Unit Setting National map unit symbol: jpxk k Elevation: 4,800 to 5,500 feet Mean annual precipitation: 13 to 15 inches Mean annual air temperature: 48 to 50 degrees F Frost -free period: 135 to 150 days Farmland classification: Not prime farmland Map Unit Composition Nelson and similar soils: 85 percent Minor components: 15 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Nelson Setting Landform position (three-dimensional): Side slope Down -slope shape: Linear Across -slope shape: Linear Parent material: Residuum weathered from sandstone Typical profile Hi - 0 to 5 inches: fine sandy loam H2 - 5 to 25 inches: fine sandy loam, sandy loam H2 - 5 to 25 inches: weathered bedrock H3 - 25 to 29 inches: properties and qualities Slope: 3 to 9 percent Depth to restrictive feature: 20 to 40 inches to paralithic bedrock Drainage class: Well drained Runoff class: Low Capacity of the most limiting layer to transmit water (Ksat): Moderately low to high (0.06 to 2.00 in/hr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ,con ding: None Custom Soil Resource Report Calcium carbonate, maximum content: 10 percent Maximum salinity: Nonsaline to very slightly saline (0.0 to 2.0 mmhos/cm) Available water capacity: Low (about 5.5 inches) Interpretive groups Land capability classification (irrigated): 4e Land capability classification (nonirrigated): 5e Hydrologic Soil Group: B Ecological site: R067BY024CO - Sandy Plains Hydric soil rating: No Minor Components Otero Percent of map unit: 10 percent Hydric soil rating: No Tassel Percent of map unit: 5 percent Hydric soil rating: No 77 Otero sandy loam, 0 to 3 percent slopes Map Unit Setting National map unit symbol: jpxr Elevation: 4,800 to 5,600 feet Mean annual precipitation: 13 to 15 inches Mean annual air temperature: 48 to 50 degrees F Frost -free period: 135 to 150 days Farmland classification: Prime farmland if irrigated Map Unit Composition Otero and similar soils: 85 percent Minor components: 15 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Otero Setting Landform: Fans Landform position (three-dimensional): Base slope, side slope Down -slope shape: Linear Across -slope shape: Linear Parent material: Alluvium and/or eolian deposits Typical profile HI - 0 to 17 inches: sandy loam H2 - 17 to 60 inches: sandy loam, fine sandy loam, loamy very fine sand H2 - 17 to 60 inches: H2 - 17 to 60 inches: Custom Soil Resource Report Properties and qualities Slope: 0 to 3 percent Depth to restrictive feature: More than 80 inches Drainage class: Somewhat excessively drained Runoff class: very low Capacity of the most limiting layer to transmit water (Ksat): High (2.00 to 6.00 inlhr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ,ion ding: None Calcium carbonate, maximum content: 5 percent Maximum salinity: Nonsaline to slightly saline (0.0 to 4.0 rrinnhos/cm) Available water capacity: very high (about 14.9 inches) Interpretive groups Land capability classification (irrigated): 3e Land capability classification (nanirrigated): 4e Hydrologic Soil Group. A Ecological site: R067BY024CO - Sandy Plains Hydric soil rating: No Minor Components Kim Percent of map unit: 8 Hydric soil rating: No Ascalon Percent of map unit: 6 Hydric soil rating: No Nelson Percent of map unit: 1 Hydric soil rating: No percent percent percent 78 Otero sandy loam, 3 to 5 percent slopes Map Unit Setting National map unit symbol: jpxs Elevation: 4,800 to 5,600 feet Mean annual precipitation: 13 to 15 inches Mean annual air temperature: 48 to 50 degrees F Frost -free period: 135 to 150 days Farmland classification: Prime farmland if irrigated Map Unit Composition Otero and similar soils: 85 percent Minor components: 15 percent Estimates are based on observations, descriptions, and transects of the mapunit. Custom Soil Resource Report Description of Otero Setting Landform: Fans Landform position (three-dimensional): Down -slope shape: Linear Across -slope shape: Linear Parent material: Alluvium and/or eolian Base slope, side slope deposits Typical profile H9 - 0 to 15 inches: sandy loam H2 - 15 to 60 inches: sandy loam, fine sandy loam, loamy very fine sand H2 - 15 to 60 inches: H2 - 15 to 60 inches: Properties and qualities Slope: 3 to 5 percent Depth to restrictive feature: More than 80 inches Drainage class: Somewhat excessively drained Runoff class: Very low capacity of the most limiting layer to transmit water (Ksat): High (2.00 to 6.00 in/hr} Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Calcium carbonate, maximum content: 5 percent Maximum salinity: Nonsaline to slightly saline (0.0 to 4.0 mmhos/cm) Available water capacity: Very high (about 15.3 inches) Interpretive groups Land capability classification (irrigated): 3e Land capability classification (nonirrigated): 4e Hydrologic Soil Group: A Ecological site: R0672.'11024O0 - Sandy Plains Hydric soil rating: No Minor Components Kim Percent of map unit: 5 Hydric soil rating: No Nelson Percent of map unit: 5 Hydric soil rating: No Ascalon Percent of map unit: 5 Hydric soil rating: No percent percent percent Custom Soil Resource Report 79 Otero sandy loam, 5 to 9 percent slopes Map Unit Setting National map unit symbol: jpxt Elevation: 4,800 to 5,600 feet Mean annual precipitation: 13 to 15 inches Mean annual air temperature: 48 to 50 degrees F Frost -free period: 135 to 150 days Farmland classification: Not prime farmland Map Unit Composition Otero and similar soils: 80 percent Minor components: 20 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Otero Setting Landform: Fans Landform position (three-dimensional): Base slope, side slope Down -slope shape: Linear Across -slope shape: Linear Parent material: Alluvium and/or eolian deposits Typical profile Hi - 0 to 14 inches: sandy loam H2 - 14 to 60 inches: sandy loam, fine sandy loam, loamy very fine sand H2 - 14 to 60 inches: H2 - 14 to 60 inches: Properties and qualities Slope: 5 to 9 percent Depth to restrictive feature: More than 80 inches Drainage class: Somewhat excessively drained Runoff class: Low Capacity of the most limiting layer to transmit water (Ksat): High (2.00 to 6.00 in/hr} Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Calcium carbonate, maximum content: 5 percent Maximum salinity: Nonsaline to slightly saline (0.0 to 4.0 mmhos/cm) Available water capacity: Very high (about 15.4 inches) Interpretive groups Land capability classification (irrigated): 4e Land capability classification (nonirrigated): 6e Hydrologic Soil Group: A Ecological site: R067BY024C0 - Sandy Plains Hydric soil rating: No 30 Custom Soil Resource Report Minor Components Kim Percent of map unit: 9 Hydric soil rating: No Nelson Percent of map unit: 6 Hydric soil rating: No Tassel Percent of map unit: 5 Hydric soil rating: No percent percent percent 80 Otero -Nelson sandy lawns, 3 to 25 percent slopes Map Unit Setting National map unit symbol: jpxw Elevation: 4,800 to 5,600 feet Mean annual precipitation: 13 to 15 inches Mean annual air temperature: 48 to 50 degrees F Frost -free period: 135 to 150 days Farmland classification: Not prime farmland Map Unit Composition Otero and similar soils: 50 percent Nelson and similar soils: 35 percent Minor components: 15 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Otero Setting Landform position (three-dimensional): Side slope Down -slope shape: Linear Across -slope shape: Linear Parent material: Alluvium and/or eolian deposits Typical profile HI - 0 to 15 inches: sandy loam H2 - 15 to 60 inches: sandy loam, fine sandy loam, loamy very fine sand H2 - 15 to 60 inches: H2 - 15 to 60 inches: Properties and qualities Slope: 3 to 15 percent Depth to restrictive feature: More than 80 inches Drainage class: Somewhat excessively drained Runoff class: Low Capacity of the most limiting layer to transmit water (Ksat): High (2.00 to 6.00 in/hr) 31 Custom Soil Resource Report Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Calcium carbonate, maximum content: 5 percent Maximum salinity: Nonsaline to slightly saline (0.0 to 4.0 mmhosfcm) Available water capacity: Very high (about 15.3 inches) Interpretive groups Land capability classification (irrigated): 6e Land capability classification (nonirrigated): 6e Hydrologic Soil Group: A Ecological site: R06IBY024CO - Sandy Plains Hydric soil rating: No Description of Nelson Setting Landform position (three-dimensional): Side slope Down -slope shape: Linear Across -slope shape: Linear Parent material: Residuum weathered from sandstone Typical profile HI - 0 to 5 inches: sandy loam H2 - 5 to 22 inches: fine sandy loam, sandy loam H2 - 5 to 22 inches: weathered bedrock H3 - 22 to 26 inches: Properties and qualities Slope: 12 to 25 percent Depth to restrictive feature: 20 to 40 inches to paralithic bedrock Drainage class: Well drained Runoff class: Low Capacity of the most limiting layer to transmit water (Ksat): Moderately low to high (0.06 to 2.00 inlhr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Calcium carbonate, maximum content: 10 percent Maximum salinity: Nonsaline to very slightly saline (0.0 to 2.0 mmhoslcm) Available water capacity: Low (about 4.6 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 6e Hydrologic Soil Group: B Ecological site: R0 67 BY024 o - Sandy Plains Hydric soil rating: No MinorComponents Tassel Percent of map unit: 10 percent Hydric soil rating: No Rock outcrop Percent of map unit: 5 percent Hydric soil rating: No 32 Custom Soil Resource Report 107 Thedalund loam, 0 to 3 percent slopes Map Unit Setting National map unit symbol: jpv0 Elevation: 4,800 to 5,600 feet Mean annual precipitation: 13 to 15 inches Mean annual air temperature: 48 to 50 degrees F Frost -free period: 135 to 150 days Farmland classification: Farmland of statewide importance Map Unit Composition Thedalund and similar soils: 90 percent Minor components: 10 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Thedalund Setting Landform position (three-dimensional): Side slope Down -slope shape: Linear Across -slope shape: Linear Parent material: Material weathered from sandstone and shale Typical profile H1 - 0 to 6 inches: loam H2 - 6 to 37 inches: clay loam, loam, sandy clay loam H2 - 6 to 37 inches: weathered bedrock H2 - 6 to 37 inches: H3 - 37 to 41 inches: Properties and qualities Slope: 0 to 3 percent Depth to restrictive feature: 20 to 40 inches to paralithic bedrock Drainage class: Well drained Runoff class: Low Capacity of the ►►most limiting layer to transmit water (sat): Moderately low to high (0.06 to 2.00 in/hr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Calcium carbonate, maximum content: 15 percent Maximum imu►m salinity: Nonsaline to moderately saline (0.0 to 8.0 mmhosloran) Available water capacity: Very high (about 16.8 inches) Interpretive groups Land capability classification (irrigated): 4s Land capability classification (nonirrigated): 4e Hydrologic Soil Group: Ecological site: R067XY0U2C+O - Loamy Plains 33 Custom Soil Resource Report Hydric soil rating: No Minor Components Kim Percent of map unit: I Hydric soil rating: No Otero Percent of map unit: 3 Hydric soil rating: No percent percent 108 Thedalund loam, 3 to 9 percent slopes Map Unit Setting National map unit symbol: jpvl l Elevation: 4,800 to 5,600 feet Mean annual precipitation: 13 to 15 inches Mean annual air temperature: 48 to 50 degrees F Frost -free period: 135 to 150 days Farmland classification: Not prime farmland Map Unit Composition Thedalund and similar soils: 90 percent Minor components: 10 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Thedalund Setting Landform position (three-dimensional): Side slope Down -slope shape: Linear Across -slope shape: Linear Parent material: Material weathered from sandstone and shale Typical profile H1 - 0 to 6 inches: loam H2 - 6 to 37 inches: clay loam, loam, sandy clay loam H2 - 6 to 37 inches: weathered bedrock H2 - 6 to 37 inches: H3 - 37 to 41 inches: Properties and qualities Slope: 3 to 9 percent Depth to restrictive feature: 20 to 40 inches to paralithic bedrock Drainage class: Well drained Runoff class: Medium Capacity of the most limiting layer to transmit water 'sat): Moderately low to high (0.06 to 2.00 inlhr) Depth to water table: More than 80 inches Frequency of flooding: None Custom Soil Resource Report Frequency of ponding: None Calcium carbonate, maximum content: 15 percent Maximum salinity: Nonsaline to moderately saline (0.0 to 8.0 mmhoslcm) Available water capacity: Very high (about 16.8 inches) Interpretive groups Land capability classification (irrigated): 4e Land capability classification (nanirrigated) 6e Hydrologic Soil Group: C Ecological site: R067XYoo2Co - Loamy Plains Hydric soil rating: No Minor Components Kim Percent of map unit: 6 Hydric soil rating: No Renohill Percent of map unit: 4 Hydric soil rating: No 136 Water percent percent Map Unit Composition Water: 95 percent Minor components: 5 percent Estimates are based on observations, descriptions, and transacts of the rnapunit. Description of Water Setting Landform: Rivers, lakes Minor Components Aquents Percent of map unit: 5 percent Landform: Marshes Down -slope shape: Linear Across -slope shape: Concave Hydric soil rating: Yes Custom Soil Resource Report Weld County, Colorado, Northern Part 4 Ascalon fine sandy loam, 0 to 6 percent slopes Map Unit Setting National map unit symbol: 2tlp5 Elevation: 4,550 to 6,050 feet Mean annual precipitation: 12 to 17 inches Mean annual air temperature: 46 to 54 degrees F Frost -free period: 135 to 160 days Farmland classification: Farmland of statewide importance Map Unit Composition Ascalon and similar soils: 85 percent ►►Minor components: 15 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Ascalon Setting Landforrn: I nterfl eves Landforn position (two-dimensional): Backslope, summit Lan dform position (three-dimensional): I me rfl uve Down -slope shape: Linear Across -slope shape: Linear Parent material: Wind -reworked alluvium and/or calcareous sandy eolian deposits Typical profile Ap - 0 to 7 inches: fine sandy loam Bti - 7 to 13 inches: sandy clay loam Bt2 - 13 to 18 inches: sandy clay loam Bk - 18 to 48 inches: sandy loam C - 48 to 80 inches: sandy loam Properties and qualities Slope: 0 to 6 percent Depth to restrictive feature: More than 80 inches Drainage class: Well drained Runoff class: Low Capacity of the most limiting► layer to transmit water ('Ksat): Moderately high to high (0.60 to 6.00 in/hr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Calcium carbonate, maximum content: 10 percent Maximum salinity: Nonsaline (0.1 to 1.9 mmhos/cm) Sodium adsorption ratio, maximum: 1.0 Available water capacity: Moderate (about 6.8 inches) Interpretive groups Land capability classification (irrigated): 3e Land capability classification (nonirrigated): 4e Hydrologic Soil Group: B Ecological site: RO67BY024CO - Sandy Plains Hydric soil rating: No 36 Custom Soil Resource Report Minor Components of nest Percent of map unit: 8 percent Landform: I nterfl uves Landform position (two-dimensional): Backslope Landform position (three-dimensional): Side slope Down -slope shape: Linear Across -slope shape: Linear Ecological site: R067BY024CO - Sandy Plains Hydric soil rating: No Otero Percent of map unit: 7 percent Landform: I ntertl uves Landform position (two-dimensional): Footslope Landform position (three-dimensional): Base slope Down -slope shape: Linear Across -slope shape: Linear Ecological site: R067BY024CO - Sandy Plains Hydric soil rating: No 47 Otero sandy loam, 3 to 9 percent slopes Map Unit Setting National map unit symbol: 3601 Elevation: 4,500 to 5,500 feet Mean annual precipitation: 12 to 15 inches Mean annual air temperature: 48 to 52 degrees F Frost -free period: 130 to 180 days Farmland classification: Not prime farmland Map Unit Composition Otero and similar soils: 85 percent Minor components: 15 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Otero Setting Landform: Plains, fans Down -slope shape: Linear Across -slope shape: Linear Parent material: Calcareous loamy alluvium and/or colluvium Typical profile HI - 0 to 5 inches: sandy loam H2 - 5 to 60 inches: fine sandy loam, sandy loam H2 - 5 to 60 inches: Custom Soil Resource Report Properties and qualities Slope: 3 to 9 percent Depth to restrictive feature: More than 80 inches Drainage class: Well drained Runoff class: Low Capacity of the most limiting layer to transmit water (Ksat): Moderately high to high (0.57 to 5.95 inlhr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ,ion ding: None Calcium carbonate, maximum content: 10 percent Maximum salinity: Nonsaline to slightly saline (0.0 to 4.0 rrirnhoslcm) Available water capacity: Very high (about 14.8 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nanirrigated): 6e Hydrologic Soil Group. A Ecological site: R007BY024C0 - Sandy Plains Hydric soil rating: No Minor Components Stoneham Percent of map unit: 7 Hydric soil rating: No Bushman Percent of map unit: 3 Hydric soil rating: No Kim Percent of map unit: 3 Hydric soil rating: No Mitchell Percent of map unit 2 Hydric soil rating: No percent percent percent percent 65 Terry sandy loam, 3 to 9 percent slopes Map Unit Setting National map unit symbol: 360p Elevation: 4,000 to 6,500 feet Mean annual precipitation: 13 to 15 inches Mean annual air temperature: 46 to 48 degrees F Frost -free period: 120 to 180 days Farmland classification: Not prime farmland Map Unit Composition Terry and similar soils: 85 percent 38 Custom Soil Resource Report Minor components: 15 percent Estimates are based on observations, descriptions, and transacts of the mapunit. Description of Terry Setting Landform: Plains Down -slope shape: Linear Across -slope shape: Linear Parent material: Calcareous sandy residuum weathered from sandstone Typical profile Hi - 0 to 5 inches: sandy loam H2 - 5 to 17 inches: fine sandy loam, sandy loam H2 - 5 to 17 inches: fine sandy loam, sandy loam, gravelly sandy loam H3 - 17 to 32 inches: weathered bedrock H3 - 17 to 32 inches: H3 - 17 to 32 inches: H4-32 to 36 inches: properties and qualities Slope: 3 to 9 percent Depth to restrictive feature: 20 to 40 inches to paralithic bedrock Drainage class: Well drained Runoff class: Medium Capacity of the most limiting layer to transmit ►water (Ksat): Moderately low to high (0.06 to 2.00 in/hr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Calcium carbonate, maximum content: 15 percent Maximum salinity: Nonsaline to very slightly saline (0.0 to 2.0 mmhoslcm) Available water capacity: Moderate (about 8.4 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 5e Hydrologic Soil Group: B Ecological site: R067BY024CO - Sandy Plains Hydric soil rating: No Minor Components Tassel Percent of map unit: 5 Hydric soil rating: No Olney Percent of map unit: 4 Hydric soil rating: No Vona Percent of map unit: 3 Hydric soil rating: No Renohill Percent of map unit: 3 Hydric soil rating: No percent percent percent percent 39 Custom Soil Resource Report 67 Thedalund-Keota I+oams, 3 to 9 percent slopes Map Unit Setting National map unit symbol: 360r Elevation: 3,500 to 6,500 feet Mean annual precipitation: 13 to 17 inches Mean annual air temperature: 46 to 48 degrees F Frost -free period: 130 to 160 days Farmland classification: Not prime farmland Map Unit Composition Thedalund and similar soils: 45 percent Keota and similar soils: 30 percent Minor components: 25 percent Estimates are based on observations, descriptions, and transacts of the mapunit. Description of Thedalund Setting Landform: Plains, ridges, alluvial fans Down -slope shape: Linear Across -slope shape: Linear Parent material: Residuum weathered from siltstone and/or calcareous loamy residuum weathered from sandstone and shale Typical profile HI - 0 to 3 inches: loam H2 - 3 to 24 inches: loam H3 - 24 to 28 inches: weathered bedrock Properties and qualities Slope: 3 to 9 percent Depth to restrictive feature: 20 to 40 inches to paralithic bedrock Drainage class: Well drained Runoff class: Medium Capacity of the most limiting layer to transmit water (Ksat): Moderately low to high (0.06 to 2.00 in/hr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Calcium carbonate, maximum content: 15 percent Maximum salinity: Nonsaline to moderately saline (0.0 to 8.0 rnmhos/cm) Available water capacity: Low (about 4.1 inches) Interpretive groups Land capability classification (irrigated): 4e Land capability classification (nonirrigated): Oe Hydrologic Soil Group►: C Ecological site: R007BY002CO - Loamy Plains Hydric soil rating: No 40 Custom Soil Resource Report Description of Keota Setting Landform: Plains, ridges, alluvial fans Down -slope shape: Linear Across -slope shape: Linear Parent material: Calcareous loamy residuum weathered from siltstone Typical profile HI - 0 to 4 inches: loam H2 - 4 to 35 inches: silt loam H3 - 35 to 39 inches: unweathered bedrock properties and qualities Slope: 3 to 9 percent Depth to restrictive feature: 20 to 40 inches to paralithic bedrock Drainage class: Well drained Runoff class: Medium Capacity of the most limiting layer to transmit water (Ksat): Moderately low to moderately high (0.06 to 0.20 inlhr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Calcium carbonate, maximum content: 10 percent Maxim urn salinity: Nonsaline to very slightly saline (0.0 to 2.0 mmhoslcm) Available water capacity: Low (about 5.3 inches) Interpretive groups Land capability classification (irrigated): 4e Land capability classification (nonirrigated): 5e Hydrologic Soil Group. Ecological site: R06IBYoo9CO - Siltstone Plains Hydric soil rating: No Minor Components Epping Percent of map unit: 10 percent Hydric soil rating: No Kim Percent of map unit: 5 percent Hydric soil rating: No Shingle Percent of map unit: 5 percent Hydric soil rating: No Mitchell Percent of map unit: 5 percent Hydric soil rating: No Custom Soil Resource Report Weld County, Colorado, Southern Part 4 Aquolls and Aquepts, flooded Map Unit Setting National map unit symbol: 3621 Elevation: 3,600 to 4,700 feet Mean annual precipitation: 12 to 16 inches Mean annual air temperature: 50 to 55 degrees F Frost -free period: 100 to 165 days Farmland classification: Prime farmland if drained and either protected from flooding or not frequently flooded during the growing season Map Unit Composition Aquolls and similar soils: 55 percent Aquepts, flooded, and similar soils: 25 percent Minor components: 20 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Aquolls Setting Landform: Drainageways, plains, depressions Down -slope shape: Linear Across -slope shape: Linear Parent material: Recent alluvium Typical profile Hi - 0 to 8 inches: variable H2 - 8 to 60 inches: stratified sandy loam to clay Properties and qualities Slope: 0 to 3 percent Depth to restrictive feature: More than 80 inches Drainage class: Poorly drained Runoff class: Very low capacity of the most limiting layer to transmit water ('Ksat): Moderately low to high (0.06 to 6.00 inlhr) Depth to water table: About 6 to 36 inches Frequency of flooding: FrequentNone Frequency of ponding: None Calcium carbonate, maximum content: 10 percent Maximum salinity: Moderately saline to strongly saline (8.0 to 16.0 mmhoslcm) Sodium adsorption ratio, maximum: 5.0 Available water capacity: Low (about 4.7 inches) Interpretive groups Land capability classification (irrigated): 6w Land capability classification (nonirrigated): 6w Hydrologic Soil Group: D Ecological site: R057BY085cO - Salt Meadow Hydric soil rating: Yes 42 Custom Soil Resource Report Description of Aquepts, Flooded Setting Landform: Stream terraces Down -slope shape: Linear Across -slope shape: Linear Parent material: Recent alluvium Typical profile HI - 0 to 8 inches: variable H2 - 8 to 60 inches: stratified sandy loam to clay Properties and qualities Slope: 0 to 3 percent Depth to restrictive feature: More than 80 inches Drainage class: Poorly drained Runoff class: Very low capacity of the most limiting layer to transmit water (Ksat): Moderately low to high (0.06 to 6.00 in/hr) Depth to water table: About 6 to 36 inches Frequency of flooding: FrequentNone Frequency of ponding: None Calcium carbonate, maximum content: 10 percent Maximum salinity: Moderately saline to strongly saline (8.0 to 16.0 mmhoslcm) Sodium adsorption ratio, maximum: 5.0 Available water capacity: Low (about 4.7 inches) Interpretive groups Land capability classification (irrigated): 6w Land capability classification (nonirrigated): 6w Hydrologic Soil Group: D Ecological site: R067BY038CO - Wet Meadow Hydric soil rating: Yes Minor Components Haverson Percent of map unit: 10 percent Hydric soil rating: No Thedalund Percent of map unit: 10 percent Hydric soil rating: No 5 Ascalon sandy loam, 0 to 3 percent slopes Map Unit Setting National map unit symbol: 2sw13 Elevation: 3,870 to 5,960 feet Mean annual precipitation: 12 to 16 inches 43 Custom Soil Resource Report Mean annual air temperature: 46 to 57 degrees F Frost -free period: 135 to 160 days Farmland classification: Prime farmland if irrigated and the product of I (soil erodibility) x C (climate factor) does not exceed 60 Map Unit Composition Ascalon and similar soils: 85 percent ►Minor components: 15 percent Estimates are based onobservations, descriptions, and transects of the mapunit. Description of Ascalon Setting Landform: I nterfl uves Landform position (two-dimensional): Summit Down -slope shape: Linear Across -slope shape: Linear Parent material: Wind -reworked alluvium and/or calcareous sandy eolian deposits Typical profile Ap - 0 to 6 inches: sandy loam Ati - 6 to 12 inches: sandy clay loam Bt2 - 12 to 19 inches: sandy clay loam Bk - 19 to 35 inches: sandy clay loam C - 35 to 80 inches: sandy loam properties and qualities Slope: 0 to 3 percent Depth to restrictive feature: More than 80 inches Drainage class: Well drained Runoff class: Low Capacity of the most limiting layer to transmit water (Ksat): Moderately high to high (0.60 to 2.00 in/hr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Calcium carbonate, maximum content: 10 percent Maximum salinity: Nonsaline to very slightly saline (0.1 to 2.0 mmhos/cm) Sodium adsorption ratio, maximum: 1.0 Available water capacity: Moderate (about 7.7 inches) Interpretive groups Land capability classification (irrigated): 3e Land capability classification (nonirricgated): 4c Hydrologic Soil Group: B Ecological site: R067BY024CO - Sandy Plains Hydric soil rating: No Minor Components Olnest Percent of map unit: 10 percent Landform: I nterfl uves Landform position (two-dimensional): Summit Landform position (three-dimensional): Tread Down -slope shape: Linear Across -slope shape: Linear 44 Custom Soil Resource Report Ecological site: R007BY024CO - Sandy Plains Hydric soil rating: No Vona Percent of map unit: 5 percent Landform: I nterfl uves Landform position (two-dimensional): Summit Down -slope shape: Linear Across -slope shape: Linear Ecological site: R007BY024CO - Sandy Plains Hydric soil rating: No 24 Fort Collins loam, 0 to 3 percent slopes Map Unit Setting National map unit symbol: 2tlnc Elevation: 4,020 to 6,730 feet Mean annual precipitation: 14 to 16 inches Mean annual air temperature: 46 to 48 degrees F Frost -free period: 135 to 160 days Farmland classification: Prime farmland if irrigated Map Unit Composition Fort collins and similar soils: 85 percent Minor components: 15 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Fort Collins Setting Landform: Stream terraces, interfluves Landform position (three-dimensional): Interfluve, tread Down -slope shape: Linear Across -slope shape: Linear Parent material: Pleistocene or older alluvium and/or eolian deposits Typical profile Ap - 0 to 4 inches: loam Btu" - 4 to 9 inches: clay loam Bt2 - 9 to 16 inches: clay loam k1 - 16 to 29 inches: loam Bk2 - 29 to 80 inches: loam Properties and qualities Slope: 0 to 3 percent Depth to restrictive feature: More than 80 inches Drainage class: Well drained Runoff class: Low Capacity of the most limiting layer to transmit ►water (sat): Moderately high t0 high (0.20 to 2.00 in/hr) Depth to water table: More than 80 inches 45 Custom Soil Resource Report Frequency of flooding: None Frequency of ponding: None Calcium carbonate, maximum content: 12 percent Maximum salinity: Nonsaline to very slightly saline (0.1 to 2.0 mmhos/cm) Available water capacity: High (about 9.1 inches) Interpretive groups Land capability classification (irrigated): 3e Land capability classification (nonirrigated): 0e Hydrologic Soil Group: C Ecological site: R0 67 BY002cO - Loamy Plains Hydric soil rating: No Minor Components Nunn Percent of map unit 10 percent Landform: Stream terraces Landform position (three-dimensional): Tread Down -slope shape: Linear Across -slope shape: Linear Ecological site: R067BY002CO - Loamy Plains Hydric soil rating: No Vona Percent of map unit: 5 percent Landform: I nterfl uves Landform position (three-dimensional): Side slope, interfluve Down -slope shape: Linear Across -slope shape: Linear Ecological site: R067BY024O - Sandy Plains Hydric soil rating: No 31 Kim loam, 0 to 1 percent slopes Map Unit Setting National map unit symbol: 3629 Elevation: 4,900 to 5,250 feet Mean annual precipitation: 13 to 17 inches Mean annual air temperature: 46 to 52 degrees F Frost -free period: 125 to 150 days Farmland classification: Prime farmland if irrigated Map Unit Composition Kim and similar soils: 90 percent Minor components: 10 percent Estimates are based on observations, descriptions, and transects of the mapunit. Custom Soil Resource Report Description of Kim Setting Landform: Alluvial fans, plains Down -slope shape: Linear Across -slope shape: Linear Parent material: Mixed eolian deposits derived from sedimentary rock Typical profile H1 - 0 to 12 inches: loam H2 - 12 to 42 inches: loam H3 - 42 to 60 inches: fine sandy loam Properties and qualities Slope: 0 to 1 percent Depth to restrictive feature: More than 80 inches Drainage class: Well drained Runoff class: Very low Capacity of the most limiting layer to transmit water (Ksat): Moderately high to high (0.57 to 5.95 in/hr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Calcium carbonate, maximum content: 15 percent Available water capacity: High (about 9.0 inches) Interpretive groups Land capability classification (irrigated): 3e Hydrologic Soil Group: A Ecological site: RO67BYO02CO - Loamy Plains Hydric soil rating: No Minor Components Otero Percent of map unit: 10 percent Hydric soil rating: No 2 Kim loam, '1 to 3 percent slopes Map Unit Setting National map unit symbol: 362b Elevation: 4,900 to 5,250 feet Mean annual precipitation: 13 to 17 inches Mean annual air temperature: 46 to 52 degrees F Frost -free period: 125 to 150 days Farmland classification: Prime farmland if irrigated Map Unit Composition Kim and similar soils: 90 percent Custom Soil Resource Report Minor components: 10 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Kim Setting Landform: Alluvial fans, plains Down -slope shape: Linear Across -slope shape: Linear Parent material: Mixed eolian deposits derived from sedimentary rock Typical profile Hi - 0 to 12 inches: loam H2 - 12 to 40 inches: loam H3 - 40 to 60 inches: fine sandy loam Properties and qualities Slope: 1 to 3 percent Depth to restrictive feature: More than 80 inches Drainage class: Well drained Runoff class: Very low Capacity of the most limiting layer to transmit water (Ksat): Moderately high to high (0.57 to 5.95 in/hr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Calcium carbonate, maximum content: 15 percent Available water capacity: Moderate (about 9.0 inches) Interpretive groups Land capability classification (irrigated): 3e Land capability classification (nonirrigated): 4e Hydrologic Soil Group: A Ecological site: R057BY002CO - Loamy Plains Hydric soil rating: No Minor Components Otero Percent of map unit: 10 percent Hydric soil rating: No 33 Kim loam, 3 to 5 percent slopes Map Unit Setting National map unit symbol: 362c Elevation: 4,900 to 5,250 feet Mean annual precipitation: 13 to 17 inches Mean annual air temperature: 46 to 52 degrees F Frost -free period: 125 to 150 days Farmland classification: Farmland of statewide importance Custom Soil Resource Report Map Unit Composition Kim and similar soils: 90 percent Minor components: 10 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Kim Setting Landform: Alluvial fans, plains Down -slope shape: Linear Across -slope shape: Linear Parent material: Mixed eolian deposits derived from sedimentary rock Typical profile Hi - 0 to 12 inches: loam H2 - 12 to 40 inches: loam H3 - 40 to 60 inches: fine sandy loam Properties and qualities Slope: 3 to 5 percent Depth to restrictive feature: More than 80 inches Drainage class: Well drained Runoff class: Very low Capacity of the most limiting layer to transmit water (Ksat): Moderately high to high (0.57 to 5.95 in/hr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Calcium carbonate, maximum content: 15 percent Available water capacity: Moderate (about 9.0 inches) Interpretive groups Land capability classification (irrigated): 3e Land capability classification ('nonirrigated): 40 Hydrologic Soil Group: A Ecological site: R067BY002CO - Loamy Plains Hydric soil rating: No Minor Components Otero Percent of map unit: 10 percent Hydric soil rating: No 34 Kim loam, 5 to 9 percent slopes Map Unit Setting National map unit symbol: 362d Elevation: 4,900 to 5,250 feet Mean annual precipitation: 13 to 17 inches Custom Soil Resource Report Mean annual air temperature: 46 to 52 degrees F Frost -free period: 125 to 150 days Farmland classification: Farmland of local importance Map Unit Composition Kim and similar soils: 90 percent Minor components: 10 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Kim Setting Landform: Alluvial fans, plains Down -slope shape: Linear Across -slope shape: Linear Parent material: Mixed eolian deposits derived from sedimentary rock Typical profile H9 - 0 to 10 inches: loam H2 - 10 to 35 inches: loam H3 - 35 to 60 inches: fine sandy loam Properties and qualities Slope:5 to 9 percent Depth to restrictive feature: More than 80 inches Drainage class: Well drained Runoff class: Low Capacity of the most limiting layer to transmit water (Ksat): Moderately high to high (0.57 to 5.95 in/hr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Calcium carbonate, maximum content: 15 percent Available water capacity: Moderate (about 8.8 inches) Interpretive groups Land capability classification (irrigated): 4e Land capability classification ,'nonirrigated l: 6e Hydrologic Soil Group: A Ecological site: R067BY008CO - Loamy Slopes Hydric soil rating: No Minor Components Otero Percent of map unit: 6 percent Hydric soil rating: No Valent Percent of map unit: 4 percent Hydric soil rating: No Custom Soil Resource Report 38 Nelson fine sandy loam, 3 to 9 percent slopes Map Unit Setting National map unit symbol: 362j Elevation: 4,800 to 5,050 feet Mean annual precipitation: 13 tO 15 inches Mean annual air temperature: 48 to 57 degrees F Frost -free period: 145 to 190 days Farmland classification: Farmland of local importance Map Unit Composition Nelson and similar soils: 85 percent Minor components: 15 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Nelson Setting Landform: Plains Down -slope shape: Linear Across -slope shape: Linear Parent material: Residuum weathered from sandstone Typical profile H9 - 0 to 9 inches: fine sandy loam H2 - 9 to 30 inches: fine sandy loam H3 - 30 to 34 inches: weathered bedrock Properties and qualities Slope: 3 to 9 percent Depth to restrictive feature: 20 to 40 inches to paralithic bedrock Drainage class: Well drained Runoff class: Medium capacity of the most limiting layer to transmit water 'Ksat,?: Moderately low to high (0.06 to 2.00 inlhr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Calcium carbonate, maximum content: 10 percent Maximum salinity: Nonsaline to very slightly saline (O.0 to 2.0 mmhoslcm) Available water capacity: Low (about 3.7 inches) Interpretive groups Land capability classification (irrigated): 4e Land capability classification (nonirricgated): 6e Hydrologic Soil Group: B Ecological site: ROO7BYO24CO - Sandy Plains Hydric soil rating: No Custom Soil Resource Report Minor Components Thedalund Percent of map unit: 10 percent Hydric soil rating: No Terry Percent of map unit: 5 percent Hydric soil rating: No 40 Nunn loam, I to 3 percent slopes Map Unit Setting National map unit symbol: 2tln2 Elevation: 3,900 to 6,250 feet ►Mean annual precipitation: 13 to 16 inches Mean annual air temperature: 46 to 54 degrees F Frost -free period: 135 to 160 days Farmland classification: Prime farmland if irrigated Map Unit Composition Nunn and similar soils: 85 percent Minor components: 15 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Nunn Setting Landform: Terraces Landform position (three-dimensional): Tread Down -slope shape: Linear Across -slope shape: Linear Parent material: Pleistocene aged alluvium and/or eolian deposits Typical profile Ap - 0 to 6 inches: loam Bt? - 6 to 10 inches: clay loam Bt2 - 10 to 26 inches: clay loam Btk - 26 to 31 inches: clay loam Bkl - 31 to 47 inches: loam Bk2 - 47 to 80 inches: loam Properties and qualities Slope: 1 to 3 percent Depth to restrictive feature: More than 80 inches Drainage class: Well drained Runoff class: Medium capacity of the most limiting layer to transmit water (Ksat): Moderately low to moderately high (0.06 to 0.20 inlhr) Depth to water table: More than 80 inches Custom Soil Resource Report Frequency of flooding: None Frequency of ponding: None Calcium carbonate, maximum content: 7 percent Maximum salinity: Nonsaline (0.1 to 1.0 mmhoslcm) sodium adsorption ratio, maximum: 0.5 Available water capacity: High (about 9.2 inches) Interpretive groups Land capability classification (irrigated): 3e Land capability classification (nonirrigated): 4e Hydrologic Soil Group: C Ecological site: R06IBY002CO - Loamy Plains Hydric soil rating: No MinorComponents Wages Percent of map unit: 8 percent Landform: Alluvial fans, terraces Landform position (three-dimensional): Tread Down -slope shape: Linear Across -slope shape: Linear Ecological site: R067BY002CO - Loamy Plains Hydric soil rating: No Fort collies Percent of map unit: 5 percent Landform: Terraces Landform position (three-dimensional): Tread Down -slope shape: Linear Across -slope shape: Linear Ecological site: R067BY002CO - Loamy Plains Hydric soil rating: No Haverson, very rarely flooded Percent of map unit 2 percent Landform: Drainageways, terraces, alluvial fans Landform position (three-dimensional): Tread Down -slope shape: Linear Across -slope shape: Concave, linear Ecological site: R067BY036CO - Overflow Hydric soil rating: No 47 Olney fine sandy loam, 1 to 3 percent slopes Map Unit Setting National map unit symbol: 362v Elevation: 4,600 to 5,200 feet Mean annual precipitation: 11 to 15 inches Mean annual air temperature: 46 to 54 degrees F Frost -free period: 125 to 175 days 53 Custom Soil Resource Report Farmland classification: Prime farmland if irrigated and the product of I (soil erodibility) x C (climate factor) does not exceed 60 Map Unit Composition Olney and similar soils: 85 percent Minor components: 15 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Olney Setting Landform: Plains Down -slope shape: Linear Across -slope shape: Linear Parent material: Mixed deposit outwash Typical profile H1 - 0 to 10 inches: fine sandy loam H2 - 10 to 20 inches: sandy clay loam H3 - 20 to 25 inches: sandy clay loam H4 - 25 to 60 inches: fine sandy loam Properties and qualities Slope: 1 to 3 percent Depth to restrictive feature: More than 80 inches Drainage class: Well drained Runoff class: Low Capacity of the most limiting layer to transmit water (sat): Moderately high to high (0.57 to 2.00 in/hr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Calcium carbonate, maximum content: 15 percent Maximum salinity: Nonsaline to very slightly saline (0.0 to 2.0 mmhoslcm) Available water capacity: Moderate (about 7.0 inches) Interpretive groups Land capability classification (irrigated): 3e Land capability classification (nonirrigated): 4c Hydrologic Soil Group: B Ecological site: R007BY024CO - Sandy Plains Hydric soil rating: No Minor Components Zigweid Percent of map unit: 10 percent Hydric soil rating: No Vona Percent of map unit: 5 percent Hydric soil rating: No Custom Soil Resource Report 48 Olney fine sandy loam, 3 to 5 percent slopes Map Unit Setting National map unit symbol: 362w Elevation: 4,600 to 5,200 feet Mean annual precipitation: 11 to 15 inches Mean annual air temperature: 46 to 54 degrees F Frost -free period: 125 to 175 days Farmland classification: Farmland of statewide importance Map Unit Composition Olney and similar soils: 85 percent Minor components: 15 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Olney Setting Landform: Plains Down -slope shape: Linear Across -slope shape: Linear Parent material: Mixed deposit outwash Typical profile H1 - 0 to 10 inches: fine sandy loam H2 - 10 to 20 inches: sandy clay loam H3 - 20 to 25 inches: sandy clay loam H4 - 25 to 60 inches: fine sandy loam Properties and qualities Slope: 3 to 5 percent Depth to restrictive feature: More than 80 inches Drainage class: Well drained Runoff class: Low Capacity of the most limiting layer to transmit water (Ksat): Moderately high to high (0.57 to 2.00 inlhr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Calcium carbonate, maximum content: 15 percent Maximum salinity: Nonsaline to very slightly saline (0.0 to 2.0 mmhoslcm) Available water capacity: Moderate (about 7.0 inches) Interpretive groups Land capability classification (irrigated): 3e Land capability classification (nonirrigated): 4c Hydrologic Soil Group: B Ecological site: R057BY024CO - Sandy Plains Hydric soil rating: No Custom Soil Resource Report Minor Components Zigweid Percent of map unit: 9 Hydric soil rating: No Vona Percent of map unit: 6 Hydric soil rating: No percent percent 51 Otero sandy loam, '1 to 3 percent slopes Map Unit Setting National map unit symbol: 3630 Elevation: 4,700 to 5,250 feet Mean annual precipitation: 12 to 15 inches Mean annual air temperature: 48 to 52 degrees F Frost -free period: 130 to 180 days Farmland classification: Prime farmland if irrigated and the product of I (soil erodibility) x C (climate factor) does not exceed 60 Map Unit Composition Otero and similar soils: 85 percent Minor components: 15 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Otero Setting Landforr: Plains Down -slope shape: Linear Across -slope shape: Linear Parent material: Eolian deposits and/or mixed outwash Typical profile Hi - 0 to 12 inches: sandy loam H2 - 12 to 60 inches: fine sandy loam Properties and qualities Slope: 1 to 3 percent Depth to restrictive feature: More than 80 inches Drainage class: Well drained Runoff class: Very low Capacity of the most limiting layer to transmit water ('sat): Moderately high to high (0.57 to 5.95 inlhr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of pounding: None Calcium carbonate, maximum content: 10 percent Maximum salinity: Nonsaline to slightly saline (0.0 to 4.0 mmhos/cm) Custom Soil Resource Report Available water capacity: Moderate (about 7.7 inches) Interpretive groups Land capability classification (irrigated): 3e Land capability classification (nonirrigated): 4e Hydrologic Soil Group: A Ecological site: R067BY0 4CO - Sandy Plains Hydric soil rating: No Minor Components Kim Percent of map unit: 10 percent Hydric soil rating: No Vona Percent of map unit: 5 percent Hydric soil rating: No 52 Otero sandy loam, 3 to 5 percent slopes Map Unit Setting National map unit symbol: 3631 Elevation: 4,700 to 5,250 feet Mean annual precipitation: 12 to 15 inches Mean annual air temperature: 48 to 52 degrees F Frost -free period: 130 to 180 days Farmland classification: Farmland of statewide importance Map Unit Composition Otero and similar soils: 85 percent Minor components: 15 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Otero Setting Landform: Plains Down -slope shape: Linear Across -slope shape: Linear Parent material: Eolian deposits and/or mixed outwash Typical profile HI - 0 to 12 inches: sandy loam H2 - 12 to 60 inches: fine sandy loam Properties and qualities Slope: 3 to 5 percent Depth to restrictive feature: More than 80 inches Drainage class: Well drained Runoff class: Very low Custom Soil Resource Report Capacity of the most limiting layer to transmit water (Ksat): Moderately high to high (0.57 to 5.95 in/hr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Calcium carbonate, maximum content: 10 percent Maximum salinity: Nonsaline to slightly saline (0.0 to 4.0 mmhos/cm) Available water capacity: Moderate (about 7.7 inches) Interpretive groups Land capability classification (irrigated): 3e Land capability classification (nonirrigated): 4e Hydrologic Soil Group: A Ecological site: R057BY024O Sandy Plains Hydric soil rating: No Minor Components Kim Percent of map unit: 12 percent Hydric soil rating: No Vona Percent of map unit: 3 percent Hydric soil rating: No 53 Otero sandy loam, 5 to 9 percent slopes Map Unit Setting National map unit symbol: 3632 Elevation: 4,700 to 5,250 feet Mean annual precipitation: 12 to 15 inches Mean annual air temperature: 48 to 52 degrees F Frost -free period: 130 to 180 days Farmland classification: Not prime farmland Map Unit Composition Otero and similar soils: 85 percent Minor components: 15 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Otero Setting Landform: Plains Down -slope shape: Linear Across -slope shape: Linear Parent material: Eolian deposits and/or mixed outwash Typical profile H1 - 0 to 12 inches: sandy loam Custom Soil Resource Report H2 - 12 to 60 inches: fine sandy loam Properties and qualities Slope: 5 to 9 percent Depth to restrictive feature: M o re than 80 inches Drainage class: Well drained Runoff class: Low Capacity of the most limiting layer to transmit water (Ksat): Moderately high to high (0.57 to 5.95 inlhr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Calcium carbonate, maximum content: 10 percent Maximum salinity: Nonsaline to slightly saline (0.0 to 4.0 mmhoslcm) Available water capacity: Moderate (about 7.7 inches) Interpretive groups Land capability classification (irrigated): 4e Land capability classification (nonirrigated): 0e Hydrologic Soil Group: A Ecological site: R067BY024CO - Sandy Plains Hydric soil rating: No Minor Components Kim Percent of map unit: 10 percent Hydric soil rating: No Cushman Percent of map unit: 5 percent Hydric soil rating: No 1 Tassel fine sandy loam, 5 to 20 percent slopes Map Unit Setting National map unit symbol: 363c Elevation: 4,850 to 5,200 feet ►Mean annual precipitation: 12 to 19 inches Mean annual air temperature: 46 to 52 degrees F Frost -free period: 110 to 165 days Farmland classification: Not prime farmland Map Unit Composition Tassel and similar soils: 85 percent Minor components: 15 percent Estimates are based on observations, descriptions, and transects of the mapunit. Custom Soil Resource Report Description of Tassel Setting Landform: Breaks Down -slope shape: Linear Across -slope shape: Linear Parent material: Residuum weathered from sandstone Typical profile H1 - 0 to -11 inches: fine sandy loam H2 - 11 to 15 inches: very fine sandy loam H3 - 15 to 20 inches: weathered bedrock properties andqualities Slope: 5 to 20 percent Depth to restrictive feature: 10 to 20 inches to paralithic bedrock Drainage class: Well drained Runoff class: Medium Capacity of the most limiting layer to transmit water (Ksat): Moderately low to moderately high (0.06 to 0.20 inlhr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of pending: None Calcium carbonate, maximum content: 10 percent Available water capacity: Very low (about 2.0 inches) Interpretive groups Land capability classification (irrigated): 6e Land capability classification (nonirrigated): 6e Hydrologic Soil Group: D Ecological site: R067BY056O - Sandstone Breaks Hydric soil rating: No Minor Components Otero Percent of map unit: 8 Hydric soil rating: No Terry Percent of map unit: 7 Hydric soil rating: No percent percent 64 Thedalund loam, .I to 3 percent slopes Map Unit Setting National map unit symbol: 363g Elevation: 4,900 to 5,250 feet Mean annual precipitation: 13 to 15 inches Mean annual air temperature: 46 to 48 degrees F Frost -free period: 130 to 160 days 60 Custom Soil Resource Report Farmland classification: Farmland of local importance Map Unit Composition Thedalund and similar soils: 90 percent Minor components: 10 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Thedalund Setting Landform: Plains Down -slope shape: Linear Across -slope shape: Linear Parent material: Residuum weathered from shale Typical profile HI - 0 to 8 inches: loam H2 - 8 to 29 inches: loam H3 - 29 to 33 inches: weathered bedrock Properties and qualities Slope: 1 to 3 percent Depth to restrictive feature: 20 to 40 inches to paralithic bedrock Drainage class: Well drained Runoff class: Low Capacity of the most limiting layer to transmit water (Ksat): Moderately low to high (0.06 to 2.00 in/hr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Calcium carbonate, maximum content: 15 percent Maximum salinity: Nonsaline to moderately saline (0.0 to 8.0 mmhos/cm) Available water capacity: Low (about 4.9 inches) Interpretive groups Land capability classification (irrigated): 4s Land capability classification (nonirrigated): 4e Hydrologic Soil Group: C Ecological site: R067BY002CO - Loamy Plains Hydric soil rating: No Minor Components Ulm Percent of map unit: 10 percent Hydric soil rating: No Soil Information for All Uses Suitabilities and Limitations for Use The Suitabilities and Limitations for Use section includes various soil interpretations displayed as thematic maps with a summary table for the soil map units in the selected area of interest. A single value or rating for each map unit is generated by aggregating the interpretive ratings of individual map unit components. This aggregation process is defined for each interpretation. Building Site Development Building site development interpretations are designed to be used as tools for evaluating soil suitability and identifying soil limitations for various construction purposes. As part of the interpretation process, the rating applies to each soil in its described condition and does not consider present land use. Example interpretations can include corrosion of concrete and steel, shallow excavations, dwellings with and without basements, small commercial buildings, local roads and streets, and lawns and landscaping. Shallow Excavations (Segment E) Shallow excavations are trenches or holes dug to a maximum depth of 5 or 6 feet for graves, utility lines, open ditches, or other purposes. The ratings are based on the soil properties that influence the ease of digging and the resistance to sloughing. Depth to bedrock or a cemented pan, hardness of bedrock or a cemented pan, the amount of large stones, and dense layers influence the ease of digging, filling, and compacting. Depth to the seasonal high water table, flooding, and ponding may restrict the period when excavations can be made. Slope influences the ease of using machinery. Soil texture, depth to the water table, and linear extensibility (shrink -swell potential) influence the resistance to sloughing. The ratings are both verbal and numerical. Rating class terms indicate the extent to which the soils are limited by all of the soil features that affect the specified use. "Not limited" indicates that the soil has features that are very favorable for the specified use. Good performance and very low maintenance can be expected. "Somewhat limited" indicates that the soil has features that are moderately favorable for the specified use. The limitations can be overcome or minimized by special planning, design, or installation. Fair performance and moderate 62 Custom Soil Resource Report maintenance can be expected. "Very limited" indicates that the soil has one or more features that are unfavorable for the specified use. The limitations generally cannot be overcome without major soil reclamation, special design, or expensive installation procedures. Poor performance and high maintenance can be expected. Numerical ratings indicate the severity of individual limitations. The ratings are shown as decimal fractions ranging from 0.01 to 1.00. They indicate gradations between the point at which a soil feature has the greatest negative impact on the use (1.00) and the point at which the soil feature is not a limitation (0.00). The map unit components listed for each map unit in the accompanying Summary by Map Unit table in Web Soil Survey or the Aggregation Report in Soil Data Viewer are determined by the aggregation method chosen. An aggregated rating class is shown for each map unit. The components listed for each map unit are only those that have the same rating class as listed for the map unit. The percent composition of each component in a particular map unit is presented to help the user better understand the percentage of each map unit that has the rating presented. Other components with different ratings may be present in each map unit. The ratings for all components, regardless of the map unit aggregated rating, can be viewed by generating the equivalent report from the Soil Reports tab in Web Soil Survey or from the Soil Data Mart site. Onsite investigation may be needed to validate these interpretations and to confirm the identity of the soil on a given site. 63 Felt 0 IDD 5030 12©00 18000 Nap prrjection: Web Merftor Cane- coordinates: WGaS I Edge tiS: UrN Zone 13N Wa584 64 Custom Soil Resource Report MAP LEGEND Area of Interest (AQI) Background Area of Interest (AOI) Aerial Photography Soils Soil Rating Polygons Very limited 0 Somewhat limited 0 Not limited 0 Not rated or not available Soil Rating Lines ,,,.+ Very limited PO - Somewhat limited Not limited r Not rated or not available Soil Rating Points • a 0 Very limited Somewhat limited Not limited 0 Not rated or not available Water Features Streams and Canals Transportation 11-114 Rails retool Interstate Highways US Routes Major Roads Local Roads MAP INFORMATION The soil surveys that comprise your AOI were mapped at 1:24,000. Please rely on the bar scale on each map sheet for map measurements. Source of Map: Natural Resources Conservation Service Web Soil Survey URL: Coordinate System: Web Mercator (EPSG:3857) Maps from the Web Soil Survey are based on the Web Mercator projection, which preserves direction and shape but distorts distance and area. A projection that preserves area, such as the Albers equal-area conic projection, should be used if more accurate calculations of distance or area are required. This product is generated from the USDA -MRCS certified data as of the version date(s) listed below. Soil Survey Area: Larimer County Area, Colorado Survey Area Data: Version 15, Jun 9, 2020 Soil Survey Area: Weld County, Colorado, Northern Part Survey Area Data: Version 15, Jun 5, 2020 Soil Survey Area: Weld County, Colorado, Southern Part Survey Area Data: Version 19, Jun 5, 2020 Your area of interest (AOl) includes more than one soil survey area. These survey areas may have been mapped at different scales, with a different land use in mind, at different times, or at different levels of detail. This may result in map unit symbols, soil properties, and interpretations that do not completely agree across soil survey area boundaries. Soil map units are labeled (as space allows) for map scales 1:50,000 or larger. Date(s) aerial images were photographed: Jul 19, 2€18 -Aug 12, 2018 Custom Soil Resource Report MAP LEGEND MAP INFORMATION The orthophoto or other base map on which the soil lines were compiled and digitized probably differs from the background imagery displayed on these maps. As a result, some minor shifting of map unit boundaries may be evident. Custom Soil Resource Report Tables Shallow Excavations (Segment E) Map unit symbol Map unit name Rating Component name (percent) Rating reasons (numeric values) Acres in AOI Percent of AOI Aquepts, loamy Not rated Aquepts (80%) Kim (5%) Stoneham (5%) Fort Collins (5%) Nunn (5%) 6.7 5.7% Ascalon sandy Somewhat loam, 0 to 3 limited percent slopes Ascalon (85%) Dusty (0.10) Unstable excavation walls (0.01) Olnest (10%) Dusty (0.09) Unstable excavation walls (0.01) Vona (5%) Unstable excavation walls (0.05) 5.5 4.7% Ascalon sandy Somewhat loam, 3 to 5 limited percent slopes Ascalon (80%) Dusty (0.10) Unstable excavation walls (0.01) Stoneham (10%) Dusty (0.27) Unstable excavation walls (0.01) Vona (8%) Dusty (0.03) Unstable excavation walls (0.01) Platner (2%) Dusty (0.36) Unstable excavation walls (0.01) 0.3 0.3% Caruso clay loam, 0 to 1 percent slope Somewhat limited Caruso (85%) Depth to saturated zone (0.95) Flooding (0.60) Dusty (0.33) Unstable excavation walls (0.01) 0.1 0.1% Cushman fine Somewhat sandy loam, 0 limited to 3 percent slopes Cushman (90%) Depth to soft bedrock (0.35) Dusty (0.30) 0.7 0.6% 67 Custom Soil Resource Report Map unit symbol Map unit name Rating Component name (percent) Rating reasons (numeric values) Acres in AOI Percent of AOI Unstable excavation walls (0.01) 53 Kim loam, 1 to 3 percent slopes Somewhat limited Kim (90%) Dusty (0.30) Unstable excavation walls (0.01) 6.9 5.8% 60 Larim gravelly sandy loam, 5 to 40 percent slopes Very limited Larim (85%) Slope (1.00) Dusty (0.07) Unstable excavation walls (0.02) 1.0 0.8% 71 Nelson fine sandy loam, 3 to 9 percent slopes Somewhat limited Nelson (85%) Depth to soft bedrock (0.84) Dusty (0.06) Unstable excavation walls (0.01) 1.4 1.2% 77 Otero sandy loam, 0 t0 3 percent slopes Somewhat limited Otero (85%) Dusty (0.04) Unstable excavation walls (0.01) 4A 3.8% 78 Otero sandy loam, 3 to 5 percent slopes Somewhat limited Otero (85%) Dusty (0.04) Unstable excavation walls (0.01) 3.4 2.9% 79 Otero sandy loam, 5 to 9 percent slopes Somewhat limited Otero (80%) Dusty (0.04) Unstable excavation walls (0.01) 0.8 0.6% 80 Otero -Nelson sandy loans, 3 to 25 percent. slopes Somewhat limited Otero (50%) Slope (0.04) Dusty (0.04) Unstable excavation walls (0.01) 0.1 0.1% 107 Thedalund loam, 0 to 3 percent slopes Somewhat limited Thedalund (90%) Dusty (0.32) Depth to soft bedrock (0.03) Unstable excavation walls (0.01) 4.3 3.6% 108 Thedalund loam, 3 to 9 percent slopes Somewhat limited Thedalund (90%) Dusty (0.32) Depth to soft bedrock (0.03) Unstable excavation walls (0.01) 1.2 1.0% 68 Custom Soil Resource Report Map unit symbol Map unit name Rating Component name (percent) Rating reasons (numeric values) Acres in AOI Percent of AOI 136 Water Not rated Water (95%) 0.2 0.1% Aquents (5%) Subtotals for Soil Survey Area 36.9 31.2% Totals for Area of Interest 118.2 100.0% Map unit symbol Map unit name Rating Component name (percent) Rating reasons (numeric values) Acres in AOI Percent of AOI 4 Ascalon fine sandy loam, 0 to 6 percent slopes Somewhat limited Ascalon (85%) Dusty (0.09) 4.1 3.5% Unstable excavation walls (0.01) Olnest (8%) Dusty (0.09) Unstable excavation walls (0.01) Otero (7%) Dusty (0.03) Unstable excavation walls (0.01) 47 Otero loam, sandy 3 to 9 percent slopes Somewhat limited Otero (85%) Dusty (0.05) 3.5 3.0% Unstable excavation walls (0.01) 65 Terry loam, sandy 3 to 9 percent slopes Somewhat limited Terry (85%) Depth to soft bedrock (0.29) 2.0 1.7% Dusty (0.04) Unstable excavation walls (0.01) 67 Thedalund-Keota Ioams, 3 to 9 percent slopes Somewhat limited Thedalund (45%) Depth to soft bedrock (0.90) 1.2 1.0% Dusty (0.32) Unstable excavation walls (0.01) Keota (30%) Dusty (0.39) Depth to soft bedrock (0.10) Unstable excavation walls (0.01) Subtotals for Soil Survey Area 10.8 9.1% Totals for Area of Interest 118.2 100.0% 69 Custom Soil Resource Report Map unit symbol Map unit name Rating Component name (percent) Rating reasons (numeric values) Acres in AOI Percent of AOI 4 Aquolls and Aquepts, flooded Very limited Aquolls (55%) Depth to saturated zone (1.00) Flooding (0.80) Dusty (0.09) Unstable excavation walls (0.01) Aquepts, flooded (25%) Depth to saturated zone (1.00) Flooding (0.80) Dusty (0.09) Unstable excavation walls (0.01) 8.7 7.4% 5 Ascalon sandy loam, 0 to 3 percent slopes Somewhat limited Ascalon (85%) Dusty (0.10) Unstable excavation walls (0.01) Olnest (10%) Dusty (0.09) Unstable excavation walls (0.01) Vona (5%) Unstable excavation walls (0.05) 14.0 11.8% 24 Fort Collins loam, 0 to 3 percent slopes Somewhat limited Fort Collins (85%) Dusty (0.24) Unstable excavation walls (0.01) Nunn (10%) Dusty (0.30) Unstable excavation walls (0.01) Vona (5%) Dusty (0.03) Unstable excavation walls (0.01) 2.3 1.9% 31 Kim loam, 0 to 1 percent slopes Somewhat limited Kim (90%) Dusty (0.27) Unstable excavation walls (0.01) 2.1 13% 32 Kim loam, 1 to 3 percent slopes Somewhat limited Kim (90%) Dusty (0.27) Unstable excavation walls (0.01) 23.5 19.9% 70 Custom Soil Resource Report Map unit symbol Map unit name Rating Component name (percent) Rating reasons (numeric values) Acres in AOI Percent of AOI 33 Kim loam, 3 to 5 Somewhat percent slopes limited Kim (90%) Dusty (0.27) Unstable excavation walls (0.01) 1.3 34 Kim loam, 5 to 9 Somewhat percent slopes limited Kim (90%) Dusty (0.27) Unstable excavation walls (0.01) 1.3 38 Nelson fine Somewhat sandy Foam, 3 limited to 9 percent slopes Nelson (85%) Depth t0 soft bedrock (0.46) Dusty (0.06) Unstable excavation walls (0.01) 5.6 4.8% 40 Nunn loam, 1 to Somewhat 3 percent limited slopes Nunn (85%) Dusty (0.33) Unstable excavation walls (0.01) Wages (8%) Dusty (0.26) Unstable excavation walls (0.01) Fort Collins (5%) Dusty (0.26) Unstable excavation walls (0.01) Haverson, very rarely flooded (2%) Dusty (0.28) Unstable excavation walls (0.01) 0.6 0.5% 47 Olney fine sandy Somewhat loam, 1 to 3 limited percent slopes Olney (85%) Dusty (0.09) Unstable excavation walls (0.01) 0.2 0.2% 48 Olney fine sandy Somewhat loam, 3 to 5 limited percent slopes Olney (85%) Dusty (0.09) Unstable excavation walls (0.01) 1.1 1.0% 51 Otero sandy Somewhat loam, 1 to 3 limited percent slopes Otero (85%) Dusty (0.04) Unstable excavation walls (0.01) 0.7 0.6% 52 Otero sandy Somewhat loam, 3 to 5 limited percent slopes Otero (85%) Dusty (0.04) Unstable excavation walls (0.01) 3.6 3.0% 71 Custom Soil Resource Report Map unit symbol Map unit name Rating Component name (percent) Rating reasons (numeric values) Acres in AOI Percent of AOI 53 Otero loam, sandy 5 to 9 percent slopes Somewhat limited Otero (85%) Dusty (0.04) 3.4 2.9% Unstable excavation walls (0.01) 61 Tassel loam, fine sandy 5 to 20 percent slopes Very limited Tassel (85%) Depth to soft bedrock (1.00) 1.0 0.8% Slope (0.84) Dusty (0.05) Unstable excavation walls (0.01) 64 Thedalund loam, 1 to 3 percent slopes Somewhat limited Thedalund (90%) Depth to soft bedrock (0.54) 1.2 1.0% Dusty (0.28) Unstable excavation walls (0.01) Subtotals for Soil Survey Area 70.5 59.6% Totals for Area of Interest 118.2 100.0% Rating Acres in AOI Percent of AOI Somewhat limited 100.7 85.2% Very limited 10.7 9.0% Null or Not Rated 6.9 5.8% Totals for Area of Interest 118.2 100.0% Rating Options Shallow Excavations (Segment E) Aggregation Method: Dominant Condition Component Percent Cutoff. None Specified Tie -break Rule: Higher 72 Custom Soil Resource Report Soil Reports The Soil Reports section includes various formatted tabular and narrative reports (tables) containing data for each selected soil map unit and each component of each unit. No aggregation of data has occurred as is done in reports in the Soil Properties and Qualities and Suitabilities and Limitations sections. The reports contain soil interpretive information as well as basic soil properties and qualities. A description of each report (table) is included. Building Site Development This folder contains a collection of tabular reports that present soil interpretations related to building site development. The reports (tables) include all selected map units and components for each map unit, limiting features and interpretive ratings. Building site development interpretations are designed to be used as tools for evaluating soil suitability and identifying soil limitations for various construction purposes. As part of the interpretation process, the rating applies to each soil in its described condition and does not consider present land use. Example interpretations can include corrosion of concrete and steel, shallow excavations, dwellings with and without basements, small commercial buildings, local roads and streets, and lawns and landscaping. Roads and Streets, Shallow Excavations, and Lawns and Landscaping (Segment E) Soil properties influence the development of building sites, including the selection of the site, the design of the structure, construction, performance after construction, and maintenance. This table shows the degree and kind of soil limitations that affect local roads and streets, shallow excavations, and lawns and landscaping. The ratings in the table are both verbal and numerical. Rating class terms indicate the extent to which the soils are limited by all of the soil features that affect building site development. Not limited indicates that the soil has features that are very favorable for the specified use. Good performance and very low maintenance can be expected. Somewhat limited indicates that the soil has features that are moderately favorable for the specified use. The limitations can be overcome or minimized by special planning, design, or installation. Fair performance and moderate maintenance can be expected. Very limited indicates that the soil has one or more features that are unfavorable for the specified use. The limitations generally cannot be overcome without major soil reclamation, special design, or expensive installation procedures. Poor performance and high maintenance can be expected. Numerical ratings in the table indicate the severity of individual limitations. The ratings are shown as decimal fractions ranging from 0.01 to 1.00. They indicate gradations between the point at which a soil feature has the greatest negative impact on the use (1.00) and the point at which the soil feature is not a limitation (0.00). 73 Custom Soil Resource Report Local roads and streets have an all-weather surface and carry automobile and light truck traffic all year. They have a subgrade of cut or fill soil material; a base of gravel, crushed rock, or soil material stabilized by lime or cement; and a surface of flexible material (asphalt), rigid material (concrete), or gravel with a binder. The ratings are based on the soil properties that affect the ease of excavation and grading and the traffic -supporting capacity. The properties that affect the ease of excavation and grading are depth to bedrock or a cemented pan, hardness of bedrock or a cemented pan, depth to a water table, ponding, flooding, the amount of large stones, and slope. The properties that affect the traffic -supporting capacity are soil strength (as inferred from the AASHTO group index number), subsidence, linear extensibility (shrink -swell potential), the potential for frost action, depth to a water table, and ponding. Shallow excavations are trenches or holes dug to a maximum depth of 5 or 6 feet for graves, utility lines, open ditches, or other purposes. The ratings are based on the soil properties that influence the ease of digging and the resistance to sloughing. Depth to bedrock or a cemented pan, hardness of bedrock or a cemented pan, the amount of large stones, and dense layers influence the ease of digging, filling, and compacting. Depth to the seasonal high water table, flooding, and ponding may restrict the period when excavations can be made. Slope influences the ease of using machinery. Soil texture, depth to the water table, and linear extensibility (shrink -swell potential) influence the resistance to sloughing. Lawns and landscaping require soils on which turf and ornamental trees and shrubs can be established and maintained. Irrigation is not considered in the ratings. The ratings are based on the soil properties that affect plant growth and trafficability after vegetation is established. The properties that affect plant growth are reaction; depth to a water table; ponding; depth to bedrock or a cemented pan; the available water capacity in the upper 40 inches; the content of salts, sodium, or calcium carbonate; and sulfidic materials. The properties that affect trafficability are flooding, depth to a water table, ponding, slope, stoniness, and the amount of sand, clay, or organic matter in the surface layer. Information in this table is intended for land use planning, for evaluating land use alternatives, and for planning site investigations prior to design and construction. The information, however, has limitations. For example, estimates and other data generally apply only to that part of the soil between the surface and a depth of 5 to 7 feet. Because of the map scale, small areas of different soils may be included within the mapped areas of a specific soil. The information is not site specific and does not eliminate the need for onsite investigation of the soils or for testing and analysis by personnel experienced in the design and construction of engineering works. Government ordinances and regulations that restrict certain land uses or impose specific design criteria were not considered in preparing the information in this table. Local ordinances and regulations should be considered in planning, in site selection, and in design. Report Roads and Streets, Shallow Excavations, and Lawns and Landscaping (Segment E) [onsite investigation may be needed to validate the interpretations in this table and to confirm the identity of the soil on a given site. The numbers in the value columns range from 0.01 to 1.00. The larger the value, the greater the potential limitation. 74 Custom Soil Resource Report The table shows only the top five limitations for any given soil. The soil may have additional limitations] Roads and Streets, Shallow Excavations, and Lawns and Landscaping-Larimer County Area, Colorado Map symbol and soil name Pct. of Lawns and landscaping Local roads and streets Shallow excavations map unit Rating limiting class and features Value Ratingclass and limiting features Value Rating limiting class and features Value 5—Aquepts, loamy Aquepts 80 Not rated Not rated Not rated 7 —Ascalon sandy loam, 0 to 3 percent slopes Ascalon 85 Somewhat limited Somewhat limited Somewhat limited Dusty 0.10 Frost action 0.50 Dusty 0.10 Unstable excavation walls 0.01 8 Ascalon sandy 3 to 5 percent loam, slopes Ascalon 80 Somewhat limited Somewhat limited Somewhat limited Dusty 0.10 Frost action 0.50 Dusty 0.10 Unstable excavation walls 0.01 22 —Caruso 0 to 1 clay loam, percent slope Caruso 85 Somewhat limited Very limited Somewhat limited Flooding 0.60 Flooding 1.00 Depth to saturated zone 0.95 Dusty 0.33 Low strength 0.69 Flooding 0.60 Frost action 0.50 Dusty 0.33 Unstable excavation walls 0.01 26 Cushman fine loam, 0 to 3 slopes sandy percent Cushman 90 Somewhat limited Somewhat limited Somewhat limited Depth to bedrock 0.35 Frost action 0.50 Depth to soft bedrock 0.35 Dusty 0.30 Dusty 0.30 Unstable excavation walls 0.01 53 Kim loam, 1 to 3 slopes percent Kim 90 Somewhat limited Somewhat limited Somewhat limited Dusty 0.30 Frost action 0.50 Dusty 0.30 Unstable excavation walls 0.01 75 Custom Soil Resource Report Roads and Streets, Shallow Excavations, and Lawns and Landscaping-Larimer County Area, Colorado Map symbol and soil name Pct. map unit of Lawns and landscaping Local roads and streets Shallow excavations Rating limiting class and features Value Rating class limiting and features Value Rating class and limiting features Value 60 Larim gravelly sandy loam, 5 to 40 percent slopes Larim 85 Very limited Very limited Very limited Slope 1.00 Slope 1.00 Slope 1.00 Droughty 0.99 Frost action 0.50 Dusty 0.07 Gravel content 0.32 Unstable excavation walls 0.02 Dusty 0.07 71 Nelson fine sandy loam, 3 to 9 percent slopes Nelson 85 Somewhat limited Somewhat limited Somewhat limited Depth to bedrock 0.84 Frost action 0.50 Depth to soft bedrock 0.84 Low exchange capacity 0.75 Dusty 0.06 Droughty 0.40 Unstable excavation walls 0.01 Dusty 0.06 77 —Otero sandy loam, 0 to 3 percent slopes Otero 85 Somewhat limited Somewhat limited Somewhat limited Low exchange capacity 0.50 Frost action 0.50 Dusty 0.04 Dusty 0.04 Unstable excavation walls 0.01 78 —Otero sandy loam, 3 to 5 percent slopes Otero 85 Somewhat limited Somewhat limited Somewhat limited Low exchange capacity 0.50 Frost action 0.50 Dusty 0.04 Dusty 0.04 Unstable excavation walls 0.01 79 Otero sandy loam, 5 to 9 percent slopes Otero 80 Somewhat limited Somewhat limited Somewhat limited Low exchange capacity 0.50 Frost action 0.50 Dusty 0.04 Dusty 0.04 Unstable excavation walls 0.01 76 Custom Soil Resource Report Roads and Streets, Shallow Excavations, and Lawns and Landscaping-Larimer County Area, Colorado Map symbol and soil name Pct. map unit of Lawns and landscaping Local roads and streets Shallow excavations Rating limiting class and features Value Rating class limiting and features Value Rating class and limiting features Value 80 —Otero -Nelson sandy beams, 3 to 25 percent slopes Otero 50 Somewhat limited Somewhat limited Somewhat limited Low exchange capacity 0.50 Frost action 0.50 Slope 0.04 Slope 0.04 Slope 0.04 Dusty 0.04 Dusty 0.04 Unstable excavation walls 0.01 Nelson 35 Very limited Very limited Very limited Slope 1.00 Slope 1.00 Slope 1.00 Depth to bedrock 0.97 Frost action 0.50 Depth to soft bedrock 0.97 Droughty 0.80 Dusty 0.05 Low exchange capacity 0.75 Unstable walls excavation 0.01 Dusty 0.05 107—Thedalund 0 to 3 slopes loam, percent Thedalund 90 Somewhat limited Somewhat limited Somewhat limited Dusty 0.32 Frost action 0.50 Dusty 0.32 Depth to bedrock 0.03 Shrink -swell 0.50 Depth to soft bedrock 0.03 Unstable excavation walls 0.01 108 Thedalund loam, percent 3 to 9 slopes Thedalund 90 Somewhat limited Somewhat limited Somewhat limited Dusty 0.32 Frost action 0.50 Dusty 0.32 Depth to bedrock 0.03 Shrink -swell 0.50 Depth to soft bedrock 0.03 Unstable excavation walls 0.01 136 Wate r Water 95 Not rated Not rated Not rated 77 Custom Soil Resource Report Roads and Streets, Shallow Excavations, and Lawns and Landscaping -Weld County, Colorado, Northern Part Map symbol and soil name Pct. map unit of Lawns and landscaping Local roads and streets Shallow excavations Rating limiting class and features Value Rating class limiting and features Value Rating class and limiting features Value 4 —Ascalon fine sandy loam, 0 to 6 percent slopes Ascalon 85 Somewhat limited Somewhat limited Somewhat limited Dusty 0.09 Frost action 0.50 Dusty 0.09 Unstable excavation walls 0.01 47 —Otero sandy loam, 3 to 9 percent slopes Otero 85 Somewhat limited Not limited Somewhat limited Low exchange capacity 0.50 Dusty 0.05 Dusty 0.05 Unstable excavation walls 0.01 65 Terry sandy loam, 3 to 9 percent slopes Terry 85 Somewhat limited Not limited Somewhat limited Low exchange capacity 0.50 Depth to soft bedrock 0.29 Depth to bedrock 0.29 Dusty► 0.04 Droughty 0.04 Unstable excavation walls 0.01 Dusty 0.04 67—Thedalund-Keota loamy, 3 to 9 percent slopes Thedalund 45 Somewhat limited Somewhat limited Somewhat limited Depth to bedrock 0.90 Shrink -swell 0.50 Depth to soft bedrock 0.90 Dusty 0.32 Dusty 0.32 Unstable excavation walls 0.01 Keota 30 Somewhat limited Not limited Somewhat limited Low exchange capacity 0.50 Dusty 0.39 Dusty 0.39 Depth to soft bedrock 0.10 Depth to bedrock 0.10 Unstable excavation walls 0.01 78 Custom Soil Resource Report Roads and Streets, Shallow Excavations, and Lawns and Landscaping -Weld County, Colorado, Southern Part Map symbol and soil name Pct. map unit of Lawns and landscaping Local roads and streets Shallow excavations Rating limiting class and features Value Rating class limiting and features Value Rating class and limiting features Value 4—Aquolls and flooded Aquepts, Aquolls 55 Not rated Very limited Very limited Frost action 1.00 Depth to saturated zone 1.00 Flooding 1.00 Flooding 0.80 Shrink -swell 0.50 Dusty 0.09 Depth to saturated zone 0.48 Unstable excavation walls 0.01 Aquepts, flooded 25 Not rated Very limited Very limited Frost action 1.00 Depth to saturated zone 1.00 Flooding 1.00 Flooding 0.80 Shrink -swell 0.50 Dusty 0.09 Depth to saturated zone 0.48 Unstable walls excavation 0.01 5 —Ascalon sandy loam, 0 to 3 percent slopes Ascalon 85 Somewhat limited Somewhat limited Somewhat limited Dusty 0.10 Frost action 0.50 Dusty 0.10 Unstable excavation walls 0.01 24 Fort Collins loam, 3 percent 0 to slopes Fort collins 85 Somewhat limited Very limited Somewhat limited Dusty 0.24 Low strength 1.00 Dusty 0.24 Frost action 0.50 Unstable excavation walls 0.01 31 —Kim loam, 0 to 1 slopes percent Kim 90 Somewhat limited Not limited Somewhat limited Low exchange capacity 0.50 Dusty 0.27 Dusty 0.27 Unstable excavation walls 0.01 32 —Kim loam, 1 to 3 percent slopes Kim 90 Somewhat limited Not limited Somewhat limited Low exchange capacity 0.50 Dusty 0.27 Dusty 0.27 Unstable excavation walls 0.01 79 Custom Soil Resource Report Roads and Streets, Shallow Excavations, and Lawns and Landscaping —Weld County, Colorado, Southern Part Map symbol and soil name Pct. map unit of Lawns and landscaping Local roads and streets Shallow excavations Rating limiting class and features Value Rating class limiting and features Value Rating class and limiting features Value 33 —Kim loam, 3 to 5 percent slopes Kim 90 Somewhat limited Not limited Somewhat limited Low exchange capacity 0.50 Dusty 0.27 Dusty 0.27 Unstable excavation walls 0.01 34 —Kim loam, 5 to 9 percent slopes Kim 90 Somewhat limited Not limited Somewhat limited Low exchange capacity 0.50 Dusty 0.27 Dusty 0.27 Unstable excavation walls 0.01 38 Nelson fine sandy loam, 3 to 9 percent slopes Nelson 85 Somewhat limited Not limited Somewhat limited Low exchange capacity 0.75 Depth to soft bedrock 0.46 Depth to bedrock 0.46 Dusty 0.06 Dusty 0.06 Unstable excavation walls 0.01 Droughty 0.04 40 —Nunn loam, 1 to 3 percent slopes Nunn 85 Somewhat limited Very limited Somewhat limited Dusty 0.33 Low strength 1.00 Dusty 0.33 Shrink -swell 0.77 Unstable excavation walls 0.01 47 Olney fine sandy loam, 1 to 3 percent slopes Olney 85 Somewhat limited Not limited Somewhat limited Dusty 0.09 Dusty 0.09 Unstable excavation walls 0.01 48 Olney fine sandy loam, 3 to 5 percent slopes Olney 85 Somewhat limited Not limited Somewhat limited Dusty 0.09 Dusty 0.09 Unstable excavation walls 0.01 80 Custom Soil Resource Report Roads and Streets, Shallow Excavations, and Lawns and Landscaping —Weld County, Colorado, Southern Part Map symbol and soil name Pct. map unit of Lawns and landscaping Local roads and streets Shallow excavations Rating limiting class and features Value Rating class limiting and features Value Rating class and limiting features Value 51 Otero sandy 1 to 3 percent loam, slopes Otero 85 Somewhat limited Not limited Somewhat limited Low exchange capacity 0.50 Dusty 0.04 Dusty 0.04 Unstable excavation walls 0.01 52 —Otero sandy loam, 3 to 5 percent slopes Otero 85 Somewhat limited Not limited Somewhat limited Low exchange capacity 0.50 Dusty 0.04 Dusty 0.04 Unstable excavation walls 0.01 53 —Otero sandy loam, 5 to 9 percent slopes Otero 85 Somewhat limited Not limited Somewhat limited Low exchange capacity 0.50 Dusty 0.04 Dusty 0.04 Unstable excavation walls 0.01 61 Tassel fine sandy 5 to 20 slopes loam, percent Tassel 85 Very limited Somewhat limited Very limited Depth to bedrock 1.00 Depth to soft bedrock 1.00 Depth to soft bedrock 1.00 Droughty 0.99 Slope 0.84 Slope 0.84 Slope 0.84 Dusty 0.05 Low exchange capacity 0.75 Unstable excavation walls 0.01 Dusty 0.05 64—Thedalund 1 to 3 slopes loam, percent Thedalund 90 Somewhat limited Somewhat limited Somewhat limited Depth to bedrock 0.54 Shrink -swell 0.50 Depth to soft bedrock 0.54 Dusty 0.28 Dusty 0.28 Unstable excavation walls 0.01 81 References American Association of State Highway and Transportation Officials (AASHTG). 2004. Standard specifications for transportation materials and methods of sampling and testing. 24th edition. American Society for Testing and Materials (ASTM). 2005. Standard classification of soils for engineering purposes. ASTM Standard D2487-00. Cowardin, L.M., V. Carter, F.C. Golet, and E.T. LaRoe. 1979. Classification of wetlands and deep -water habitats of the United States. L.S. Fish and Wildlife Service FWS/OBS-79/31. Federal Register. July 13, 1994. Changes in hydric soils of the United States. Federal Register. September 18, 2002. Hydric soils of the United States. Hurt, G.W., and L.M. Vasilas, editors. Version 6.0, 2006. Field indicators of hydric soils in the United States. N ational Research Council. 1995. Wetlands: Characteristics and boundaries. Soil Survey Division Staff. 1993. Soil survey manual. Soil Conservation Service. U .S. Department of Agriculture Handbook 18. http://www.nres.usda.gov/wps!portal/ nres/detail/national/soils/?cid=nres142p2_054262 Soil Survey Staff. 1999. Soil taxonomy: A basic system of soil classification for making and interpreting soil surveys. 2nd edition. Natural Resources Conservation Service, U.S. Department of Agriculture Handbook 436. http:// www.nres. usda.gov/wps/portal/nres/detail/national/soils/?cid=nres142p2_053577 Soil Survey Staff. 2010. Keys to soil taxonomy. 11th edition. U.S. Department of Agriculture, Natural Resources Conservation Service. http:// wvwv.nres. usda.goviwps/portal/nres/detail/national/soils/?cid=nres142p2_053580 Tiner, R.'W., Jr. 1985. Wetlands of Delaware. U.S. Fish and Wildlife Service and Delaware Department of Natural Resources and Environmental Control, Wetlands Section. U nited States Army Corps of Engineers, Environmental Laboratory. 1987. Corps of Engineers wetlands delineation manual. Waterways Experiment Station Technical Report Y-87-1. U nited States Department of Agriculture, Natural Resources Conservation Service. N ational forestry manual. http://wv► w.nres.usda.gov/wps/portal/nres/detail/soils/ home/?cid=nres142p2_053374 U nited States Department of Agriculture, Natural Resources Conservation Service. N ational range and pasture handbook. http://w w.nres.usda.gov/wps/portal/nres/ detail/national/landuse/rangepasture/?cid=stelprdb 1043084 82 Custom Soil Resource Report U nited States Department of Agriculture, Natural Resources Conservation Service. N ational soil survey handbook, title 430 -VI. http://wv.nres.usda.gov/wps/portal/ nres/detail/soilslscientists/'cid=nres1 42p2_054242 United States Department of Agriculture, Natural Resources Conservation Service. 2006. Land resource regions and major land resource areas of the United States, the Caribbean, and the Pacific Basin. U.S. Department of Agriculture Handbook 296. http://www.nrcs.usda.goviwpsiportalinrcsidetailinationalisoilsi? ci d = n res 142 p2_053 024 U nited States Department of Agriculture, Soil Conservation Service. 1961. Land capability classification. U.S. Department of Agriculture Handbook 210. http:// www.nrcs.usda.gov/Internet/FSE DOCUMENTS/nrcs142p2 052290.pdf 83 USDA United States Department of Agriculture MRCS Natural Resources Conservation Service A product of the National Cooperative Soil Survey, a joint effort of the United States Department of Agriculture and other Federal agencies, State agencies including the Agricultural Experiment Stations, and local participants Custom Soil Resource Report for Weld County, Colorado, Southern Part Segment C - North January 12, 2021 Preface Soil surveys contain information that affects land use planning in survey areas. They highlight soil limitations that affect various land uses and provide information about the properties of the soils in the survey areas. Soil surveys are designed for many different users, including farmers, ranchers, foresters, agronomists, urban planners, community officials, engineers, developers, builders, and home buyers. Also, conservationists, teachers, students, and specialists in recreation, waste disposal, and pollution control can use the surveys to help them understand, protect, or enhance the environment. Various land use regulations of Federal, State, and local governments may impose special restrictions on land use or land treatment. Soil surveys identify soil properties that are used in making various land use or land treatment decisions_ The information is intended to help the land users identify and reduce the effects of soil limitations on various land uses. The landowner or user is responsible for identifying and complying with existing laws and regulations. Although soil survey information can be used for general farm, local, and wider area planning, onsite investigation is needed to supplement this information in some cases. Examples include soil quality assessments (http://www.nres.usda.gov/wps/ portal/arcs/main/soils/health/) and certain conservation and engineering applications. For more detailed information, contact your local USDA Service Center (https://offices.sc.egov.usda.gov/locator/app?agency=arcs) or your NRCS State Soil Scientist (http://www.nres.usda.govtwps/portal/nres/detail/soils/contactus/? ci d = n res 142 p2_053951). Great differences in soil properties can occur within short distances. Some soils are seasonally wet or subject to flooding. Some are too unstable to be used as a foundation for buildings or roads. Clayey or wet soils are poorly suited to use as septic tank absorption fields. A high water table makes a soil poorly suited to basements or underground installations. The National Cooperative Soil Survey is a joint effort of the United States Department of Agriculture and other Federal agencies, State agencies including the Agricultural Experiment Stations, and local agencies. The Natural Resources Conservation Service (NRCS) has leadership for the Federal pad of the National Cooperative Soil Survey. Information about soils is updated periodically. Updated information is available through the NRCS Web Soil Survey, the site for official soil survey information. The U.S. Department of Agriculture (USDA) prohibits discrimination in all its programs and activities on the basis of race, color, national origin, age, disability, and where applicable, sex, marital status, familial status, parental status, religion, sexual orientation, genetic information, political beliefs, reprisal, or because all or a part of an individual's income is derived from any public assistance program. (Not all prohibited bases apply to all programs.) Persons with disabilities who require 2 alternative means for communication of program information (Braille, large print, audiotape, etc.) should contact USDA's TARGET Center at (202) 720-2600 (voice and TDD). To file a complaint of discrimination, write to USDA, Director, Office of Civil Rights, 1400 Independence Avenue, S.W., Washington, D.C. 20250-9410 or call (800) 795-3272 (voice) or (202) 720-6382 (TDD). USDA is an equal opportunity provider and employer. 3 Contents Preface 2 How Soil Surveys Are Made..5 Soil Map 8 Soil Map9 Legend 10 Map Unit Legend11 Map Unit Descriptions11 Weld County, Colorado, Southern Part 14 3 Aquolls and Aquents, gravelly substratum.14 4 Aquolls and Aquepts, flooded..15 5 -Ascalon sandy loam, 0 to 3 percent slopes 17 13 Cascajo gravelly► sandy loam, 5 to 20 percent slopes 19 15 Colby loam, 1 to 3 percent slopes 20 17 Colby loam, 5 to 9 percent slopes 21 33 Kim loam, 3 to 5 percent slopes22 34 Kim loam, 5 to 9 percent slopes23 41 Nunn clay loam, 0 to 1 percent slopes 24 42 Nunn clay loam, 1 to 3 percent slopes 26 47 Olney fine sandy loam, 1 to 3 percent slopes 27 48 Olney fine sandy loam, 3 to 5 percent slopes 28 51 Otero sandy loam, 1 to 3 percent slopes 29 52 Otero sandy loam, 3 to 5 percent slopes 31 53 Otero sandy loam, 5 to 9 percent slopes 32 79 Weld loam, 1 to 3 percent slopes 33 82 Wiley -Colby complex, 1 to 3 percent slopes 35 83 Wiley -Colby complex, 3 to 5 percent slopes 37 85 Water38 Soil Information for All Uses40 Suitabilities and Limitations for Use 40 Building Site Development40 Shallow Excavations (Segment C - North)..40 Soil Reports48 Building Site Development48 Roads and Streets, Shallow Excavations, and Lawns and Landscaping (Segment C - North) 48 References.54 4 How Soil Surveys Are Made Soil surveys are made to provide information about the soils and miscellaneous areas in a specific area. They include a description of the soils and miscellaneous areas and their location on the landscape and tables that show soil properties and limitations affecting various uses_ Soil scientists observed the steepness, length, and shape of the slopes; the general pattern of drainage; the kinds of crops and native plants; and the kinds of bedrock. They observed and described many soil profiles_ A soil profile is the sequence of natural layers, or horizons, in a soil. The profile extends from the surface down into the unconsolidated material in which the soil formed or from the surface down to bedrock. The unconsolidated material is devoid of roots and other living organisms and has not been changed by other biological activity. Currently, soils are mapped according to the boundaries of major land resource areas (MLRAs). MLRAs are geographically associated land resource units that share common characteristics related to physiography, geology, climate, water resources, soils, biological resources, and land uses (USDA, 2006). Soil survey areas typically consist of parts of one or more MLRA. The soils and miscellaneous areas in a survey area occur in an orderly pattern that is related to the geology, landforms, relief, climate, and natural vegetation of the area. Each kind of soil and miscellaneous area is associated with a particular kind of landform or with a segment of the landform. By observing the soils and miscellaneous areas in the survey area and relating their position to specific segments of the landform, a soil scientist develops a concept, or model, of how they were formed. Thus, during mapping, this model enables the soil scientist to predict with a considerable degree of accuracy the kind of soil or miscellaneous area at a specific location on the landscape. Commonly, individual soils on the landscape merge into one another as their characteristics gradually change. To construct an accurate soil map, however, soil scientists must determine the boundaries between the soils_ They can observe only a limited number of soil profiles. Nevertheless, these observations, supplemented by an understanding of the soil -vegetation -landscape relationship, are sufficient to verify predictions of the kinds of soil in an area and to determine the boundaries_ Soil scientists recorded the characteristics of the soil profiles that they studied. They noted soil color, texture, size and shape of soil aggregates, kind and amount of rock fragments, distribution of plant roots, reaction, and other features that enable them to identify soils. After describing the soils in the survey area and determining their properties, the soil scientists assigned the soils to taxonomic classes (units). Taxonomic classes are concepts. Each taxonomic class has a set of soil characteristics with precisely defined limits_ The classes are used as a basis for comparison to classify soils systematically. Soil taxonomy, the system of taxonomic classification used in the United States, is based mainly on the kind and character of soil properties and the arrangement of horizons within the profile_ After the soil 5 Custom Soil Resource Report scientists classified and named the soils in the survey area, they► compared the individual soils with similar soils in the same taxonomic class in other areas so that they could confirm data and assemble additional data based on experience and research. The objective of soil mapping is not to delineate pure map unit components; the objective is to separate the landscape into landforms or landform segments that have similar use and management requirements. Each map unit is defined by a unique combination of soil components and/or miscellaneous areas in predictable proportions. Some components may be highly contrasting to the other components of the map unit. The presence of minor components in a map unit in no way diminishes the usefulness or accuracy of the data. The delineation of such landforms and landform segments on the map provides sufficient information for the development of resource plans. If intensive use of small areas is planned, onsite investigation is needed to define and locate the soils and miscellaneous areas. Soil scientists make many field observations in the process of producing a soil map. The frequency of observation is dependent upon several factors, including scale of mapping, intensity of mapping, design of map units, complexity of the landscape, and experience of the soil scientist. Observations are made to test and refine the soil -landscape model and predictions and to verify the classification of the soils at specific locations. Once the soil -landscape model is refined, a significantly smaller number of measurements of individual soil properties are made and recorded. These measurements may include field measurements, such as those for color, depth to bedrock, and texture, and laboratory measurements, such as those for content of sand, silt, clay, salt, and other components. Properties of each soil typically vary from one point to another across the landscape. Observations for map unit components are aggregated to develop ranges of characteristics for the components. The aggregated values are presented. Direct measurements do not exist for every property presented for every map unit component. Values for some properties are estimated from combinations of other properties. While a soil survey is in progress, samples of some of the soils in the area generally are collected for laboratory analyses and for engineering tests. Soil scientists interpret the data from these analyses and tests as well as the field -observed characteristics and the soil properties to determine the expected behavior of the soils under different uses. Interpretations for all of the soils are field tested through observation of the soils in different uses and under different levels of management. Some interpretations are modified to fit local conditions, and some new interpretations are developed to meet local needs. Data are assembled from other sources, such as research information, production records, and field experience of specialists. For example, data on crop yields under defined levels of management are assembled from farm records and from field or plot experiments on the same kinds of soil. Predictions about soil behavior are based not only on soil properties but also on such variables as climate and biological activity. Soil conditions are predictable over long periods of time, but they are not predictable from year to year. For example, soil scientists can predict with a fairly high degree of accuracy that a given soil will have a high water table within certain depths in most years, but they cannot predict that a high water table will always be at a specific level in the soil on a specific date. After soil scientists located and identified the significant natural bodies of soil in the survey area, they drew the boundaries of these bodies on aerial photographs and 6 Custom Soil Resource Report identified each as a specific map unit. Aerial photographs show trees, buildings, fields, roads, and rivers, all of which help in locating boundaries accurately. Soil Map The soil map section includes the soil map for the defined area of interest, a list of soil map units on the map and extent of each map unit, and cartographic symbols displayed on the map. Also presented are various metadata about data used to produce the map, and a description of each soil map unit. 8 1��]j((++.�''IItc s V JAN IVW LYJW 103 j fret o 1500 3003 Map pr. jedion: Vleb hleratnr corny oaordinates; 'WG581 Edge tis: I.ITM Zone 13N'WGSi34 Custom Soil Resource Report MAP LEGEND Area of Interest (AQI) Area of Interest (AOI) Soils O Soil Map Unit Polygons Soil Map Unit Lines Soil Map Unit Points Special Point Features t, Blowout Borrow Pit Clay Spot Closed Depression Gravel Pit Gravelly Spot Landfill Lava Flow Marsh or swamp Mine or Quarry Miscellaneous Water Perennial Water Rock Outcrop Saline Spot Sandy Spot Severely Eroded Spot Sinkhole Slide or Slip Sodic Spot I 4i a Spoil Area Stony Spot Very Stony Spot Wet Spot Other Special Line Features Water Features Streams and Canals Transportation -1--11—F Rails Interstate Highways US Routes Major Roads Local Roads Background Aerial Photography MAP INFORMATION The soil surveys that comprise your AOI were mapped at 1:24,000. Please rely on the bar scale on each map sheet for map measurements. Source of Map: Natural Resources Conservation Service Web Soil Survey URL: Coordinate System: Web Mercator (EPSG:3857) Maps from the Web Soil Survey are based on the Web Mercator projection, which preserves direction and shape but distorts distance and area. A projection that preserves area, such as the Albers equal-area conic projection, should be used if more accurate calculations of distance or area are required. This product is generated from the USDA -MRCS certified data as of the version date(s) listed below. Soil Survey Area: Weld County, Colorado, Southern Part Survey Area Data: Version 19, Jun 5, 2020 Soil map units are labeled (as space allows) for map scales 1:50,000 or larger. Date(s) aerial images were photographed: Jul 19, 2018 Aug 12, 2018 The orthophoto or other base map on which the soil lines were compiled and digitized probably differs from the background imagery displayed on these maps. As a result, some minor shifting of map unit boundaries may be evident. 10 Custom Soil Resource Report Map Unit Legend Map Unit Symbol Map Unit Name Acres in AOI Percent of AOI 3 Aqualls and Aquents, gravelly substratum 7.3 8.1% 4 Aqualls and Aquepts, flooded 3.2 3.5% 5 Ascalon sandy loam, 0 to 3 percent slopes 3.5 3.9% 13 Cascajo gravelly sandy loam, 5 to 20 percent slopes 0.1 0.1% 15 Colby loam, 1 to 3 percent slopes 2.6 2.9% 17 Colby loam, 5 to 9 percent slopes 2.0 2.2% 33 Kim loam, 3 to 5 percent slopes 0.4 0.4% 34 Kim loam, 5 to 9 percent slopes 1.7 1.9% 41 Nunn clay loam, 0 to 1 percent slopes 8.4 9.4% 42 Nunn clay loam, 1 to 3 percent slopes 4.1 4.6% 47 Olney fine sandy percent slopes loam, 1 to 3 9.7 10.8% 48 Olney fine sandy loam, 3 to 5 percent slopes 0.4 0.4% 51 Otero sandy loam, 1 to 3 percent slopes 0.8 0.9% 52 Otero sandy loam, 3 to 5 percent slopes 4.4 4.9% 53 Otero sandy loam, 5 to 9 percent slopes 3.5 3.9% 79 Weld loam, 1 slopes to 3 percent 14.1 15.8% 82 Wiley -Colby complex, percent slopes 1 to 3 12.5 13.9% 83 Wiley -Colby complex, 3 to 5 percent slopes 10.5 11.7% 85 Water 0.4 0.5% Totals for Area of Interest 89.5 100.0% Map Unit Descriptions The map units delineated on the detailed soil maps in a soil survey represent the soils or miscellaneous areas in the survey area. The map unit descriptions, along with the maps, can be used to determine the composition and properties of a unit. 11 Custom Soil Resource Report A map unit delineation on a soil map represents an area dominated by one or more major kinds of soil or miscellaneous areas. A map unit is identified and named according to the taxonomic classification of the dominant soils. Within a taxonomic class there are precisely defined limits for the properties of the soils. On the landscape, however, the soils are natural phenomena, and they have the characteristic variability of all natural phenomena. Thus, the range of some observed properties may extend beyond the limits defined for a taxonomic class. Areas of soils of a single taxonomic class rarely, if ever, can be mapped without including areas of other taxonomic classes. Consequently, every map unit is made u p of the soils or miscellaneous areas for which it is named and some minor components that belong to taxonomic classes other than those of the major soils. Most minor soils have properties similar to those of the dominant soil or soils in the map unit, and thus they do not affect use and management. These are called n oncontrasting, or similar, components. They may or may not be mentioned in a particular map unit description. Other minor components, however, have properties and behavioral characteristics divergent enough to affect use or to require different management. These are called contrasting, or dissimilar, components. They generally are in small areas and could not be mapped separately because of the scale used. Some small areas of strongly contrasting soils or miscellaneous areas are identified by a special symbol on the maps. If included in the database for a given area, the contrasting minor components are identified in the map unit descriptions along with some characteristics of each. A few areas of minor components may not have been observed, and consequently they are not mentioned in the descriptions, especially where the pattern was so complex that it was impractical to make enough observations to identify all the soils and miscellaneous areas on the landscape. The presence of minor components in a map unit in no way diminishes the u sefulness or accuracy of the data. The objective of mapping is not to delineate pure taxonomic classes but rather to separate the landscape into landforms or landform segments that have similar use and management requirements. The delineation of such segments on the map provides sufficient information for the development of resource plans. If intensive use of small areas is planned, however, onsite investigation is needed to define and locate the soils and miscellaneous areas. An identifying symbol precedes the map unit name in the map unit descriptions. Each description includes general facts about the unit and gives important soil properties and qualities. Soils that have profiles that are almost alike make up a soil series. Except for differences in texture of the surface layer, all the soils of a series have major horizons that are similar in composition, thickness, and arrangement. Soils of one series can differ in texture of the surface layer, slope, stoniness, salinity, degree of erosion, and other characteristics that affect their use. On the basis of such differences, a soil series is divided into soil phases. Most of the areas shown on the detailed soil maps are phases of soil series. The name of a soil phase commonly indicates a feature that affects use or management. For example, Alpha silt loam, 0 to 2 percent slopes, is a phase of the Alpha series. Some map units are made up of two or more major soils or miscellaneous areas. These map units are complexes, associations, or undifferentiated groups. A complex consists of two or more soils or miscellaneous areas in such an intricate pattern or in such small areas that they cannot be shown separately on the maps. 12 Custom Soil Resource Report The pattern and proportion of the soils or miscellaneous areas are somewhat similar in all areas. Alpha -Beta complex, 0 to 6 percent slopes, is an example. An association is made up of two or more geographically associated soils or miscellaneous areas that are shown as one unit on the maps. Because of present or anticipated uses of the map units in the survey area, it was not considered practical or necessary to map the soils or miscellaneous areas separately. The pattern and relative proportion of the soils or miscellaneous areas are somewhat similar. Alpha -Beta association, 0 to 2 percent slopes, is an example. An undifferentiated group is made up of two or more soils or miscellaneous areas that could be mapped individually but are mapped as one unit because similar interpretations can be made for use and management. The pattern and proportion of the soils or miscellaneous areas in a mapped area are not uniform. An area can be made up of only one of the major soils or miscellaneous areas, or it can be made up of all of them. Alpha and Beta soils, 0 to 2 percent slopes, is an example. Some surveys include miscellaneous areas. Such areas have little or no soil material and support little or no vegetation. Rock outcrop is an example. 13 Custom Soil Resource Report Weld County, Colorado, Southern Part 3 Aquolls and Aquents, gravelly substratum Map Unit Setting National map unit symbol: 3627 Elevation: 4,000 to 7,200 feet Mean annual precipitation: 12 to 18 inches Mean annual air temperature: 45 to 55 degrees F Frost -free period: 80 to 155 days Farmland classification: Prime farmland if drained and either protected from flooding or not frequently flooded during the growing season Map Unit Composition Aquolls and similar soils: 55 percent Aquents, gravelly substratum, and similar soils: 30 percent Minor components: 15 percent Estimates are based on observations, descriptions, and transacts of the mapunit. Description of Aquolls Setting Landforr: Streams, flood plains, swales Down -slope shape: Linear Across -slope shape: Linear Parent material: Recent alluvium Typical profile Hi - 0 to 48 inches: loam H2 - 48 to 60 inches: gravelly sand Properties and qualities Slope: 0 to 3 percent Depth to restrictive feature: More than 80 inches Drainage class: Poorly drained Runoff class: Low Capacity of the most limiting layer to transmit water (Ksat): Moderately high to high (0.20 to 2.00 in/hr) Depth to water table: About 6 to 48 inches Frequency of flooding: FrequentNone Frequency of ponding: None Maximum salinity: Nonsaline to slightly saline (0.0 to 4.0 mmhoslcrri) Available water capacity: Moderate (about 8.0 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 6w Hydrologic Soil Group: D Ecological site: R067BY035CO - Salt Meadow Hydric soil rating: Yes Description of Aquents, Gravelly Substratum Setting Landform: Stream terraces Down -slope shape: Linear 14 Custom Soil Resource Report Across -slope shape: Linear Parent material: Recent alluvium Typical profile Hi - 0 to 48 inches: variable H2 - 48 to 60 inches: very gravelly sand Properties and qualities Slope: 0 to 3 percent Depth to restrictive feature: More than 80 inches Drainage class: Poorly drained Runoff class: Very high capacity of the most limiting layer to transmit water (sat): Moderately high to very high (0.57 to 19.98 inlh r) Depth to water table: About 6 to 24 inches Frequency of flooding: FrequentNone Frequency of ponding: None Calcium carbonate, maximum content: 10 percent Maximum salinity: Nonsaline to moderately saline (0.0 to 8.0 mmhosfcm) Available water capacity: Moderate (about 6.6 inches) Interpretive groups Land capability classification (irrigated): 6w Land capability classification (nonirrigated): 6w Hydrologic Soil Group: D Ecological site: R067BY035CO - Salt Meadow Hydric soil rating: Yes Minor Components Ban ka rd Percent of map unit: 10 percent Hydric soil rating: No Ustic torrifluvents Percent of map unit: 5 percent Hydric soil rating: No —Aquolls and Aquepts, flooded Map Unit Setting National map unit symbol: 3621 Elevation: 3,600 to 4,700 feet Mean annual precipitation: 12 to 16 inches Mean annual air temperature: 50 to 55 degrees F Frost -free period: 100 to 165 days Farmland classification: Prime farmland if drained and either protected from flooding or not frequently flooded during the growing season Custom Soil Resource Report Map Unit Composition Aquolls and similar soils: 55 percent Aquepts, flooded, and similar soils: 25 percent Minor components: 20 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Aquolls Setting Landform: Drainageways, plains, depressions Down -slope shape: Linear Across -slope shape: Linear Parent material: Recent alluvium Typical profile Hi - 0 to 8 inches: variable H2 - 8 to 60 inches: stratified sandy loam to clay Properties and qualities Slope: 0 to 3 percent Depth to restrictive feature: More than 80 inches Drainage class: Poorly drained Runoff class: Very low capacity of the most limiting layer to transmit water (Ksat): Moderately low to high (0.06 to 6.00 in/hr) Depth to water table: About 6 to 36 inches Frequency of flooding: FrequentNone Frequency of ponding: None Calcium carbonate, maximum content: 10 percent Maximum salinity: Moderately saline to strongly saline (8.0 to 16.0 mmhoslcm) Sodium adsorption ratio, ►aximum: 5.0 Available water capacity: Low (about 4.7 inches) Interpretive groups Land capability classification (irrigated): 6w Land capability classification (nonirrigated): 6w Hydrologic Soil Group: D Ecological site: R067BY035CO - Salt Meadow Hydric soil rating►: Yes Description of Aquepts, Flooded Setting Landform: Stream terraces Down -slope shape: Linear Across -slope shape: Linear Parent material: Recent alluvium Typical profile Hi - 0 to 8 inches: variable H2 - 8 to 60 inches: stratified sandy loam to clay Properties and qualities Slope: 0 to 3 percent Depth to restrictive feature: More than 80 inches Drainage class: Poorly drained Runoff class: Very low 16 Custom Soil Resource Report Capacity of the most limiting layer to transmit water (Ksat): Moderately low to high (0.06 to 6.00 in/hr) Depth to water table: About 6 to 36 inches Frequency of flooding: FrequentNone Frequency of ponding: None Calcium carbonate, maximum content: 10 percent Maximum salinity: Moderately saline to strongly saline (8.0 to 16.0 mmhos/cm) Sodium adsorption ratio, maximum: 5.0 Available water capacity: Low (about 4.7 inches) Interpretive groups Land capability classification (irrigated): 6w Land capability classification (nonirrigated): 6w Hydrologic Soil Group: D Ecological site: RO67BY038CO - Wet Meadow Hydric soil rating: Yes Minor Components Haverson Percent of map unit: 10 percent Hydric soil rating: No Thedalund Percent of map unit: 10 percent Hydric soil rating: No 5 Ascalon sandy loam, 0 to 3 percent slopes Map Unit Setting National map unit symbol: 2sw13 Elevation: 3,870 to 5,960 feet Mean annual precipitation: 12 to 16 inches Mean annual air temperature: 46 to 57 degrees F Frost -free period: 135 to 160 days Farmland classification: Prime farmland if irrigated and the product of I (soil erodibility) x C (climate factor) does not exceed 60 Map Unit Composition Ascalon and similar soils: 85 percent Minor components: 15 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Ascalon Setting Landform: I nterfl uves Landforrn position (two-dimensional): Summit Down -slope shape: Linear Across -slope shape: Linear 17 Custom Soil Resource Report Parent material: Wind -reworked alluvium and/or calcareous sandy eolian deposits Typical profile Ap - 0 to 6 inches: sandy loam - 6 to 12 inches: sandy clay loam Bt2 - 12 to 19 inches: sandy clay loam Bk - 19 to 35 inches: sandy clay loam C - 35 to 80 inches: sandy loam Properties and qualities Slope: 0 to 3 percent Depth to restrictive feature: More than 80 inches Drainage class: Well drained Runoff class: Low Capacity of the most limiting layer to transmit water (Ksat): Moderately high to high (0.60 to 2.00 inlhr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of pending: None Calcium carbonate, maximum content: 10 percent Maximum salinity: Nonsaline to very slightly saline (0.1 to 2.0 mmhoslcm) Sodium adsorption ratio, maximum: 1.0 Available water capacity: Moderate (about 7.7 inches) Interpretive groups Land capability classification (irrigated): 3e Land capability classification (nonirrigated): 4c Hydrologic Soil Group: B Ecological site: R067BY024CO - Sandy Plains Hydric soil rating: No Minor Components of nest Percent of map unit: 10 percent Landform: I nterfl uves Landform position (two-dimensional): Summit Landform position 'three-dimensional): Tread Down -slope shape: Linear Across -slope shape: Linear Ecological site: R067BY024CO - Sandy Plains Hydric soil rating: No Vona Percent of map unit: 5 percent Landform: I nterfl uves Landform position (two-dimensional): Summit Down -slope shape: Linear Across -slope shape: Linear Ecological site: R067BY024CO - Sandy Plains Hydric soil rating: No Custom Soil Resource Report 13 Cascajo gravelly► sandy► loam, 5 to 20 percent slopes Map Unit Setting National map unit symbol: 361 n Elevation: 4,600 to 5,200 feet Mean annual precipitation: 11 to 13 inches Mean annual air temperature: 52 to 54 degrees F Frost -free period: 120 to 160 days Farmland classification: Not prime farmland Map Unit Composition Cascajo and similar soils: 85 percent Minor components: 15 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Cascajo Setting Landform: Ridges, terraces Down -slope shape: Linear Across -slope shape: Linear Parent material: Calcareous gravelly alluvium Typical profile Hl - 0 to 9 inches: gravelly sandy loam H2 - 9 to 31 inches: extremely gravelly sandy loam H3 - 31 to 60 inches: very gravelly sand Properties and qualities Slope: 5 to 20 percent Depth to restrictive feature: More than 80 inches Drainage class: Excessively drained Runoff class: Low Capacity of the most limiting layer to transmit water (Ksat): High (2.00 to 6.00 in/hr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ,eon ding: None Calcium carbonate, maximum content: 25 percent Maximum salinity: Nonsaline to very slightly saline (0.0 to 2.0 mmhoslcm) Available water capacity: Low (about 4.1 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 7s Hydrologic Soil Group: A Ecological site: R067BY063CO - Gravel Breaks Hydric soil rating: No Custom Soil Resource Report Minor Components Renohill Percent of map unit: 8 Hydric soil rating: No Samsil Percent of map unit: 7 Hydric soil rating: No percent percent 15 Colby loam, '1 to 3 percent slopes Map Unit Setting National map unit symbol: 361q Elevation: 4,850 to 5,050 feet Mean annual precipitation: 12 to 16 inches Mean annual air temperature: 48 to 50 degrees F Frost -free period: 135 to 155 days Farmland classification: Prime farmland if irrigated Map Unit Composition Colby and similar soils: 85 percent Minor components: 15 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Colby Setting Down -slope shape: Linear Across -slope shape: Linear Parent material: Calcareous eolian deposits Typical profile H - 0 to 7 inches: loam H2 - 7 to 60 inches: silt loam Properties and qualities Slope: 1 to 3 percent Depth to restrictive feature: More than 80 inches Drainage class: Well drained Runoff class: Low Capacity of the most limiting layer to transmit water (Ksat): Moderately high to high (0.57 to 2.00 in/hr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Calcium carbonate, maximum content: 15 percent Available water capacity: High (about 10.6 inches) Interpretive groups Land capability classification (irrigated): 3e 20 Custom Soil Resource Report Land capability classification (nonirrigated): 4e Hydrologic Soil Group: B Ecological site: 8067 BY00Z O - Loamy Plains Hydric soil rating: No Minor Components Wiley Percent of map unit: 9 Hydric soil rating: No Keith Percent of map unit: 6 Hydric soil rating: No percent percent 17 Colby loam, 5 to 9 percent slopes Map Unit Setting National map unit symbol: 361s Elevation: 4,850 to 5,050 feet ►Mean annual precipitation: 12 to 16 inches Mean annual air temperature: 48 to 50 degrees F Frost -free period: 135 to 155 days Farmland classification: Not prime farmland Map Unit Composition Colby and similar soils: 90 percent Minor components: 10 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Colby Setting Landform: Ridges, hills Down -slope shape: Linear Across -slope shape: Linear Parent material: Calcareous eolian deposits Typical profile Hi - 0 to 7 inches: loam H2 - 7 to 60 inches: silt loam Properties and qualities Slope: 5 to 9 percent Depth to restrictive feature: More than 80 inches Drainage class: Well drained Runoff class: Medium Capacity of the most limiting layer to transmit water `sat): Moderately high to high (0.57 to 2.00 inlhr) Depth to water table: More than 80 inches Frequency of flooding: None Custom Soil Resource Report Frequency of ponding: None Calcium carbonate, ►►rlaximum content: 15 percent Available water capacity: High (about 10.6 inches) Interpretive groups Land capability classification (irrigated): 6e Land capability classification (nonirrigated): 6e Hydrologic Soil Group: B Ecological site: R06IBY0U8CO - Loamy Slopes Hydric soil rating: No Minor Components Wiley Percent of map unit: 10 percent Hydric soil rating: No 33 Kim loam, 3 to 5 percent slopes Map Unit Setting National map unit symbol: 362c Elevation: 4,900 to 5,250 feet Mean annual precipitation: 13 to 17 inches Mean annual air temperature: 46 to 52 degrees F Frost -free period: 125 to 150 days Farmland classification: Farmland of statewide importance Map Unit Composition Kim and similar soils: 90 percent Minor components: 10 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Kim Setting Landform: Alluvial fans, plains Down -slope shape: Linear Across -slope shape: Linear Parent material: Mixed eolian deposits derived from sedimentary rock Typical profile H1 - 0 to 12 inches: loam H2 - 12 to 40 inches: loam H3 - 40 to 60 inches: fine sandy loam Properties and qualities Slope: 3 to 5 percent Depth to restrictive feature: More than 80 inches Drainage class: Well drained Runoff class: Very low Custom Soil Resource Report Capacity of the most limiting layer to transmit water (Ksat): Moderately high to high (0.57 to 5.95 in/hr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Calcium carbonate, maximum content: 15 percent Available water capacity: Moderate (about 9.0 inches) Interpretive groups Land capability classification (irrigated): 3e Land capability classification (nonirrigated): 4e Hydrologic Soil Group: A Ecological site: R0667BY002CO - Loamy Plains Hydric soil rating: No Minor Components Otero Percent of map unit: 10 percent Hydric soil rating: No 34 Kim loam, 5 to 9 percent slopes Map Unit Setting National map unit symbol: 362d Elevation: 4,900 to 5,250 feet Mean annual precipitation: 13 to 17 inches Mean annual air temperature: 46 to 52 degrees F Frost -free period: 125 to 150 days Farmland classification: Farmland of local importance Map Unit Composition Kim and similar soils: 90 percent Minor components: 10 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Kim Setting Landform: Alluvial fans, plains Down -slope shape: Linear Across -slope shape: Linear Parent material: Mixed eolian deposits derived from sedimentary rock Typical profile Hi - 0 to 10 inches: loam H2 - 10 to 35 inches: loam H3 - 35 to 60 inches: fine sandy loam Properties and qualities Slope: 5 to 9 percent Custom Soil Resource Report Depth to restrictive feature: More than 80 inches Drainage class: Well drained Runoff class: Low Capacity of the most limiting layer to transmit water (Ksat): Moderately high to high (0.57 to 5.95 in/hr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of pending: None Calcium carbonate, maximum content: 15 percent Available water capacity: Moderate (about 8.8 inches) Interpretive groups Land capability classification (irrigated): 4e Land capability classification (nonirrigated): 6e Hydrologic Soil Group: A Ecological site: R057PYo08O - Loamy Slopes Hydric soil rating: No Minor Components Otero Percent of map unit: 6 Hydric soil rating: No Valent Percent of map unit: 4 Hydric soil rating: No percent percent 41 Nunn clay loam, 0 to 1 percent slopes Map Unit Setting National map unit symbol: 2tln g Elevation: 4,100 to 5,700 feet Mean annual precipitation: 14 to 15 inches Mean annual air temperature: 48 to 52 degrees F Frost -free period: 135 to 152 days Farmland classification: Prime farmland if irrigated Map Unit Composition Nunn and similar soils: 85 percent Minor components: 15 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Nunn Setting Landform: Terraces Landform position (three-dimensional): Tread Down -slope shape: Linear Across -slope shape: Linear Parent material: Pleistocene aged alluvium and/or eolian deposits 24 Custom Soil Resource Report Typical profile Ap - 0 to 6 inches: clay loam Bt1 - 6 to 10 inches: clay loam 8t2 - 10 to 26 inches: clay loam Btk - 26 to 31 inches: clay loam Bk1 - 31 to 47 inches: loam 8k2 - 47 to 80 inches: loam Properties and qualities Slope: 0 to 1 percent Depth to restrictive feature: More than 80 inches Drainage class: Well drained Runoff class: Medium Capacity of the most limiting layer to transmit water (Ksat): Moderately low to moderately high (0.06 to 0.20 inlhr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Calcium carbonate, maximum content: 7 percent Maximum salinity: Nonsaline (0.1 to 1.0 mmhoslcm) Sodium adsorption ratio, maximum: 0.5 Available water capacity: High (about 9.1 inches) Interpretive groups Land capability classification (irrigated): 3e Land capability classification (nonirrigated): 4e Hydrologic Soil Group: C Ecological site: R067BY042CO - Clayey Plains Hydric soil rating: No Minor Components Heldt Percent of map unit: 10 percent Landform: Terraces Landform position (three-dimensional): Tread Down -slope shape: Linear Across -slope shape: Linear Ecological site: R057BY042GO - Clayey Plains Hydric soil rating: No Wages Percent of map unit: 5 percent Landform: Terraces Landform position (three-dimensional): Tread Down -slope shape: Linear Across -slope shape: Linear Ecological site: R057BY002O - Loamy Plains Hydric soil rating: No Custom Soil Resource Report 42 Nunn clay loam, '1 to 3 percent slopes Map Unit Setting National map unit symbol: 2tlpl Elevation: 3,900 to 5,840 feet Mean annual precipitation: 13 to 17 inches Mean annual air temperature: 50 to 54 degrees F Frost -free period: 135 to 160 days Farmland classification: Prime farmland if irrigated Map Unit Composition Nunn and similar soils: 85 percent Minor components: 15 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Nunn Setting Landform: Terraces Landform position (three-dimensional): Tread Down -slope shape: Linear Across -slope shape: Linear Parent material: Pleistocene aged alluvium and/or eolian deposits Typical profile Ap - 0 to 9 inches: clay loam Bt - 9 to 13 inches: clay loam Btk - 13 to 25 inches: clay loam Bkt - 25 to 38 inches: clay loam Bk2 - 38 to 80 inches: clay loam Properties and qualities Slope: 1 to 3 percent Depth to restrictive feature: More than 80 inches Drainage class: Well drained Runoff class: Medium capacity of the most limiting layer to transmit water (Ksat): Moderately low to moderately high (0.06 to 0.20 in/hr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Calcium carbonate, maximum content: 7 percent Maximum salinity: Nonsaline to very slightly saline (0.1 to 2.0 mmhos/cm) Sodium adsorption ratio, maximum: 0.5 Available water capacity: High (about 9.9 inches) Interpretive groups Land capability classification (irrigated): 2e Land capability classification (nonirrigated): 3e Hydrologic Soil Group: C 26 Custom Soil Resource Report Ecological site: R067BY042CO - Clayey Plains Hydric soil rating: No Minor Components Heldt Percent of map unit: 10 percent Landform: Terraces Landform position (three-dimensional): Tread Down -slope shape: Linear Across -slope shape: Linear Ecological site: R067BY042CO - Clayey Plains Hydric soil rating►: No Satanta Percent of map unit: 5 percent Landform: Terraces Landform position (three-dimensional): Tread Down -slope shape: Linear Across -slope shape: Linear Ecological site: R067BY002CO - Loamy Plains Hydric soil rating: No 47 Olney fine sandy loam, '1 to 3 percent slopes Map Unit Setting National map unit symbol: 362v Elevation: 4,600 to 5,200 feet ►Man annual precipitation: 11 to 15 inches Mean annual air temperature: 46 to 54 degrees F Frost -free period: 125 to 175 days Farmland classification: Prime farmland if irrigated and the product of I (soil erodibility) x C (climate factor) does not exceed 60 Map Unit Composition Olney and similar soils: 85 percent Minor components: 15 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Olney Setting Landform: Plains Down -slope shape: Linear Across -slope shape: Linear Parent material: Mixed deposit outwash Typical profile Hi - 0 to 10 inches: fine sandy loam H2 - 10 to 20 inches: sandy clay loam H3 - 20 to 25 inches: sandy clay loam 27 Custom Soil Resource Report H4 - 25 to 60 inches: fine sandy loam Properties and qualities Slope: 1 to 3 percent Depth to restrictive feature: M o re than 80 inches Drainage class: Well drained Runoff class: Low Capacity of the most limiting layer to transmit water (Ksat): Moderately high to high (0.57 to 2.00 inlhr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Calcium carbonate, maximum content: 15 percent Maximum salinity: Nonsaline to very slightly saline (0.0 to 2.0 mmhoslcm) Available water capacity: Moderate (about 7.0 inches) Interpretive groups Land capability classification (irrigated): 3e Land capability classification (nonirrigated): 4c Hydrologic Soil Group: B Ecological site: R067B)/024OO - Sandy Plains Hydric soil rating: No Minor Components Zigweid Percent of map unit: 10 percent Hydric soil rating: No Vo n a Percent of map unit: 5 percent Hydric soil rating: No 48 Olney fine sandy loam, 3 to 5 percent slopes Map Unit Setting National map unit symbol: 362w Elevation: 4,600 to 5,200 feet ►Mean annual precipitation: 11 to 15 inches Mean annual air temperature: 46 to 54 degrees F Frost -free period: 125 to 175 days Farmland classification: Farmland of statewide importance Map Unit Composition Olney and similar soils: 85 percent Minor components: 15 percent Estimates are based on observations, descriptions, and transects of the mapunit. Custom Soil Resource Report Description of Olney Setting Landform: Plains Down -slope shape: Linear Across -slope shape: Linear Parent material: Mixed deposit outwash Typical profile H1 - o to 10 inches: fine sandy loam H2 - 10 to 20 inches: sandy clay loam H3 - 20 to 25 inches: sandy clay loam H4 - 25 to 60 inches: fine sandy loam Properties and qualities Slope: 3 to 5 percent Depth to restrictive feature: More than 80 inches Drainage class: Well drained Runoff class: Low Capacity of the most limiting layer to transmit water (sat): Moderately high to high (0.57 to 2.00 inlhr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Calcium carbonate, maximum content: 15 percent Maximum salinity: Nonsaline to very slightly saline (0.0 to 2.0 mmhoslcm) Available water capacity: Moderate (about 7.0 inches) Interpretive groups Land capability classification (irrigated): 3e Land capability classification (nonirrigated): 4c Hydrologic Soil Group: B Ecological site: R067BY024CO - Sandy Plains Hydric soil rating: No Minor Components Zigweid Percent of map unit: 9 percent Hydric soil rating: No Vona Percent of map unit: 6 percent Hydric soil rating: No 51 Otero sandy loam, to 3 percent slopes Map Unit Setting National map unit symbol: 3630 Elevation: 4,700 to 5,250 feet Mean annual precipitation: 12 to 15 inches 29 Custom Soil Resource Report Mean annual air temperature: 48 to 52 degrees F Frost -free period: 130 to 180 days Farmland classification: Prime farmland if irrigated and the product of I (soil erodibility) x C (climate factor) does not exceed 60 Map Unit Composition Otero and similar soils: 85 percent ►Minor components: 15 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Otero Setting Landform: Plains Down -slope shape: Linear Across -slope shape: Linear Parent material: Eolian deposits and/or mixed outwash Typical profile H1 - 0 to 12 inches: sandy loam H2 - 12 to 60 inches: fine sandy loam Properties and qualities Slope: 1 to 3 percent Depth to restrictive feature: More than 80 inches Drainage class: Well drained Runoff class: Very low capacity of the most limiting layer to transmit water (sat): Moderately high to high (0.57 to 5.95 in/hr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Calcium carbonate, maximum content: 10 percent Maximum salinity: Nonsaline to slightly saline (O.0 to 4.0 mmhos/cm) Available water capacity: Moderate (about 7.7 inches) Interpretive groups Land capability classification (irrigated): 3e Land capability classification (nonirrigated): 4e Hydrologic Soil Group: A Ecological site: ROO7BY024cO - Sandy Plains Hydric soil rating: No Minor Components Kim Percent of map unit: 10 percent Hydric soil rating: No Vona Percent of map unit: 5 percent Hydric soil rating: No Custom Soil Resource Report 52 Otero sandy loam, 3 to 5 percent slopes Map Unit Setting National map unit symbol: 3631 Elevation: 4,700 to 5,250 feet Mean annual precipitation: 12 to 15 inches Mean annual air temperature: 48 to 52 degrees F Frost -free period: 130 to 180 days Farmland classification: Farmland of statewide importance Map Unit Composition Otero and similar soils: 85 percent Minor components: 15 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Otero Setting Landform: Plains Down -slope shape: Linear Across -slope shape: Linear Parent material: Eolian deposits and/or mixed outwash Typical profile H1 - 0 to 12 inches: sandy loam H2 - 12 to 60 inches: fine sandy loam Properties and qualities Slope: 3 to 5 percent Depth to restrictive feature: More than 80 inches Drainage class: We l l d ra i n e d Runoff class: Very low capacity of the most limiting layer to transmit water (Ksat): Moderately high to high (0.57 to 5.95 inlhr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Calcium carbonate, maximum content: 10 percent Maximum salinity: Nonsaline to slightly saline (0.0 to 4.0 mmhoslcm) Available water capacity: Moderate (about 7.7 inches) Interpretive groups Land capability classification (irrigated): 3e Land capability classification (nonirrigated): 4e Hydrologic Soil Group. A Ecological site: R067BY024CO - Sandy Plains Hydric soil rating: No Custom Soil Resource Report Minor Components Kim Percent of map unit: 12 percent Hydric soil rating: No Vona Percent of map unit: 3 percent Hydric soil rating: No 53 Otero sandy loam, 5 to 9 percent slopes Map Unit Setting National map unit symbol: 3632 Elevation: 4,700 to 5,250 feet ►Man annual precipitation: 12 to 15 inches Mean annual air temperature: 48 to 52 degrees F Frost -free period: 130 to 180 days Farmland classification: Not prime farmland Map Unit Composition Otero and similar soils: 85 percent Minor components: 15 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Otero Setting Landform: Plains Down -slope shape: Linear Across -slope shape: Linear Parent material: Eolian deposits and/or mixed outwash Typical profile Hi - 0 to 12 inches: sandy loam H2 - 12 to 60 inches: fine sandy loam Properties and qualities Slope: 5 to 9 percent Depth to restrictive feature: More than 80 inches Drainage class: Well drained Runoff class: Low Capacity of the most limiting layer to transmit water (Ksat): Moderately high to high (0.57 to 5.95 in/hr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Calcium carbonate, maximum content: 10 percent Maximum salinity: Nonsaline to slightly saline (0.0 to 4.0 mmhos/cm) Available water capacity: Moderate (about 7.7 inches) Custom Soil Resource Report Interpretive groups Land capability classification (irrigated): 4e Land capability classification (nonirrigated): 6e Hydrologic Soil Group: A Ecological site: Ro6IBYo24Co - Sandy Plains Hydric soil rating: No Minor Components Kim Percent of map unit: 10 percent Hydric soil rating: No Cushman Percent of map unit: 5 percent Hydric soil rating: No 79 Weld loam, I to 3 percent slopes Map Unit Setting National map unit symbol: 2x0hw Elevation: 3,600 to 5,750 feet Mean annual precipitation: 12 to 17 inches Mean annual air temperature: 46 to 54 degrees F Frost -free period: 115 to 155 days Farmland classification: Prime farmland if irrigated Map Unit Composition Weld and similar soils: 80 percent Minor components: 20► percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Weld Setting Landform: I nterfl uves Landform position (two-dimensional): Summit Landform position (three-dimensional): Interfluve Down -slope shape: Linear Across -slope shape: Linear Parent material: calcareous loess Typical profile Ap - 0 to 8 inches: loam Btu' - 8 to 12 inches: clay Bt2 - 12 to 15 inches: clay loam Btk - 15 to 28 inches: loam Bk - 28 to 60 inches: silt loam C - 60 to 80 inches: silt loam Custom Soil Resource Report Properties and qualities Slope: 1 to 3 percent Depth to restrictive feature: More than 80 inches Drainage class: We l l d ra i n e d Runoff class: Medium Capacity of the most limiting layer to transmit water (Ksat): Moderately low to moderately high (0.06 to 0.20 inlhr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Calcium carbonate, maximum content: 14 percent Maximum salinity: Nonsaline to very slightly saline (0.1 to 2.0 rnmhosfcm) Sodium adsorption ratio, maximum: 5.0 Available water capacity: High (about 11.3 inches) Interpretive groups Land capability classification (irrigated): 2e Land capability classification (nonirrigated): 3c Hydrologic Soil Group: C Ecological site: R067B)/002CO - Loamy Plains Hydric soil rating: No Minor Components Adena Percent of map unit: 8 percent Landform: I nterfl uves Landform position (two-dimensional): Shoulder Landform position (three-dimensional): Interfluve Down -slope shape: Convex Across -slope shape: Convex Ecological site: R067BY002CO - Loamy Plains Hydric soil rating: No Colby Percent of map unit: 7 percent Landform: Hillslopes Landform position (two-dimensional): Backslope Landform position (three-dimensional): Side slope Down -slope shape: Convex Across -slope shape: Convex Ecological site: R067BY002CO - Loamy Plains Hydric soil rating: No Keith Percent of map unit 3 percent Landform: I nterfl eves Landform position (two-dimensional): Summit Landform position (three-dimensional): Interfluve Down -slope shape: Linear Across -slope shape: Linear Ecological site: R067BY00 CO - Loamy Plains Hydric soil rating: No Baca Percent of map unit: 2 percent 34 Custom Soil Resource Report Landform: I nterfl uves Landform position (two-dimensional): Shoulder, summit Landform position (three-dimensional): I me rfl uve Down -slope shape: Linear, convex Across -slope shape: Linear, convex Ecological site: R067BY002CO - Loamy Plains Hydric soil rating: No 82 Wiley -Colby complex, to 3 percent slopes Map Unit Setting National map unit symbol: 3643 Elevation: 4,850 to 5,000 feet Mean annual precipitation: 12 to 16 inches Mean annual air temperature: 48 to 54 degrees F Frost -free period: 135 to 170 days Farmland classification: Prime farmland if irrigated Map Unit Composition Wiley and similar soils: 60 percent Colby and similar soils: 30 percent Minor components: 10 percent Estimates are based on observations, descriptions, and transacts of the mapunit. Description of Wiley Setting Landform: Plains Down -slope shape: Linear Across -slope shape: Linear Parent material: Calcareous eolian deposits Typical profile H1 - 0 toll inches: silt loam H2 - 11 to 60 inches: silty clay loam H3 - 60 to 64 inches: silty clay loam Properties and qualities Slope: 1 to 3 percent Depth to restrictive feature: More than 80 inches Drainage class: Well drained Runoff class: Low Capacity of the most limiting layer to transmit water (Ksat): Moderately high to high (0.60 to 2.00 inlhr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Calcium carbonate, maximum content: 15 percent Maximum salinity: Nonsaline to very slightly saline (0.0 to 2.0 mmhoslcm) Available water capacity: High (about 11.7 inches) Custom Soil Resource Report Interpretive groups Land capability classification (irrigated): 2e Land capability classification (nonirrigated): 4e Hydrologic Soil Group: B Ecological site: R007BY002CO - Loamy Plains Hydric soil rating: No Description of Colby Setting Landform: Plains Down -slope shape: Linear Across -slope shape: Linear Parent material: calcareous eolian deposits Typical profile Hi - 0 to 7 inches: loam H2 - 7 to 60 inches: silt loam Properties and qualities Slope: 1 to 3 percent Depth to restrictive feature: More than 80 inches Drainage class: Well drained Runoff class: Low Capacity of the most limiting layer to transmit ►water (sat): Moderately high to high (0.57 to 2.00 in/hr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of pending: None Calcium carbonate, maximum content: 15 percent Available water capacity: High (about 10.6 inches) Interpretive groups Land capability classification (irrigated): 3e Land capability classification (nonirrigated): 4e Hydrologic Soil Group: B Ecological site: R007BY002CO - Loamy Plains Hydric soil rating: No Minor Components Weld Percent of map unit 4 Hydric soil rating: No Heldt Percent of map unit: 4 Hydric soil rating: No Keith Percent of map unit: 2 Hydric soil rating: No percent percent percent Custom Soil Resource Report 83 Wiley -Colby complex, 3 to 5 percent slopes Map Unit Setting National map unit symbol: 3644 Elevation: 4,850 to 5,000 feet Mean annual precipitation: 12 to 16 inches Mean annual air temperature: 48 to 54 degrees F Frost -free period: 135 to 170 days Farmland classification: Farmland of statewide importance Map Unit Composition Wiley and similar soils: 55 percent Colby and similar soils: 30 percent Minor components: 15 percent Estimates are based on observations, descriptions, and transacts of the mapunit. Description of Wiley Setting Landform: Plains Down -slope shape: Linear Across -slope shape: Linear Parent material: calcareous eolian deposits Typical profile Hi - 0 toil inches: silt loam H2 - 11 to 60 inches: silty clay loam H3 - 60 to 64 inches: silty clay loam Properties and qualities Slope: 3 to 5 percent Depth to restrictive feature: More than 80 inches Drainage class: Well drained Runoff class: Low Capacity of the most limiting layer to transmit water (sat): Moderately high to high (0.60 to 2.00 in/hr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Calcium carbonate, maximum content: 15 percent Maximum salinity: Nonsaline to very slightly saline (0.0 to 2.0 mmhoslcm) Available water capacity: High (about 11.7 inches) Interpretive groups Land capability classification (irrigated): 3e Land capability classification (nonirrigated): 4e Hydrologic Soil Group: B Ecological site: 8057 BY002CO - Loamy Plains Hydric soil rating: No 37 Custom Soil Resource Report Description of Colby Setting Landform: Plains Down -slope shape: Linear Across -slope shape: Linear Parent material: Calcareous eolian deposits Typical profile HI - 0 to 7 inches: loam H2 - 7 to 60 inches: silt loam Properties and qualities Slope: 3 to 5 percent Depth to restrictive feature: More than 80 inches Drainage class: Well drained Runoff class: Low Capacity of the most limiting layer to transmit water (Ksat): Moderately high to high (0.57 to 2.00 inlhr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Calcium carbonate, maximum content: 15 percent Available water capacity: High (about 10.6 inches) Interpretive groups Land capability classification (irrigated): 3e Land capability classification (nonirrigated): 4e Hydrologic Soil Group: B Ecological site: R067BY002C0 - Loamy Plains Hydric soil rating: No Minor Components Heldt Percent of map unit: 9 Hydric soil rating: No Weld Percent of map unit: 6 Hydric soil rating: No 85 Water percent percent Map Unit Composition Water: 95 percent Minor components: 5 percent Estimates are based on observations, descriptions, and transacts of the mapunit. Custom Soil Resource Report Minor Components Aquolls Percent of map unit: 5 percent Landforrn Marshes Hydric soil rating►: Yes Soil Information for All Uses Suitabilities and Limitations for Use The Suitabilities and Limitations for Use section includes various soil interpretations displayed as thematic maps with a summary table for the soil map units in the selected area of interest. A single value or rating for each map unit is generated by aggregating the interpretive ratings of individual map unit components. This aggregation process is defined for each interpretation. Building Site Development Building site development interpretations are designed to be used as tools for evaluating soil suitability and identifying soil limitations for various construction purposes. As part of the interpretation process, the rating applies to each soil in its described condition and does not consider present land use. Example interpretations can include corrosion of concrete and steel, shallow excavations, dwellings with and without basements, small commercial buildings, local roads and streets, and lawns and landscaping. Shallow Excavations (Segment C - North) Shallow excavations are trenches or holes dug to a maximum depth of 5 or 6 feet for graves, utility lines, open ditches, or other purposes. The ratings are based on the soil properties that influence the ease of digging and the resistance to sloughing. Depth to bedrock or a cemented pan, hardness of bedrock or a cemented pan, the amount of large stones, and dense layers influence the ease of digging, filling, and compacting. Depth to the seasonal high water table, flooding, and ponding may restrict the period when excavations can be made. Slope influences the ease of using machinery. Soil texture, depth to the water table, and linear extensibility (shrink -swell potential) influence the resistance to sloughing. The ratings are both verbal and numerical. Rating class terms indicate the extent to which the soils are limited by all of the soil features that affect the specified use. "Not limited" indicates that the soil has features that are very favorable for the specified use. Good performance and very low maintenance can be expected. "Somewhat limited" indicates that the soil has features that are moderately favorable for the specified use. The limitations can be overcome or minimized by special planning, design, or installation. Fair performance and moderate 40 Custom Soil Resource Report maintenance can be expected. "Very limited" indicates that the soil has one or more features that are unfavorable for the specified use. The limitations generally cannot be overcome without major soil reclamation, special design, or expensive installation procedures. Poor performance and high maintenance can be expected. Numerical ratings indicate the severity of individual limitations. The ratings are shown as decimal fractions ranging from 0.01 to 1.00. They indicate gradations between the point at which a soil feature has the greatest negative impact on the use (1.00) and the point at which the soil feature is not a limitation (0.00). The map unit components listed for each map unit in the accompanying Summary by Map Unit table in Web Soil Survey or the Aggregation Report in Soil Data Viewer are determined by the aggregation method chosen. An aggregated rating class is shown for each map unit. The components listed for each map unit are only those that have the same rating class as listed for the map unit. The percent composition of each component in a particular map unit is presented to help the user better understand the percentage of each map unit that has the rating presented. Other components with different ratings may be present in each map unit. The ratings for all components, regardless of the map unit aggregated rating, can be viewed by generating the equivalent report from the Soil Reports tab in Web Soil Survey or from the Soil Data Mart site. Onsite investigation may be needed to validate these interpretations and to confirm the identity of the soil on a given site. 41 bildcrs V JAN IVW LYJW 103 fret j �y J I5s30 wini avi Map pr. jedion: Vleb hleratnr corny oaordinates; 'WG581 Edge tis: I.ITM Zone 13N'WGSi34 42 Custom Soil Resource Report MAP LEGEND Area of Interest (Aol) Area of Interest (AD I) Soils Soil Rating Polygons Very limited Somewhat limited Not limited Not rated or not available Soil Rating Lines ,,,.+ Very limited - Somewhat limited Not limited r • Not rated or not available Soil Rating Points • a 0 Very limited Somewhat limited Not limited 0 Not rated or not available Water Features Streams and Canals Transportation retool Rails Interstate Highways US Routes Major Roads Local Roads Background Aerial Photography MAP INFORMATION The soil surveys that comprise your Aol were mapped at 1:24,000. Please rely on the bar scale on each map sheet for map measurements. Source of Map: Natural Resources Conservation Service Web Soil Survey URL: Coordinate System: Web Mercator (EPSG:3857) Maps from the Web Soil Survey are based on the Web Mercator projection, which preserves direction and shape but distorts distance and area. A projection that preserves area, such as the Albers equal-area conic projection, should be used if more accurate calculations of distance or area are required. This product is generated from the USDA -MRCS certified data as of the version date(s) listed below. Soil Survey Area: Weld County, Colorado, Southern Part Survey Area Data: Version 19, Jun 5, 2020 Soil map units are labeled (as space allows) for map scales 1:50,000 or larger. Date(s) aerial images were photographed: Jul 19, 2018 Aug 12, 2018 The orthophoto or other base map on which the soil lines were compiled and digitized probably differs from the background imagery displayed on these maps. As a result, some minor shifting of map unit boundaries may be evident. 43 Custom Soil Resource Report Tables Shallow Excavations (Segment C - North) Map unit symbol Map unit name Rating Component Rating reasons name (percent) (numeric values) Acres in AOI Percent of AOI Aquolls and Aquents, gravelly substratum Very limited Aquolls (55%) Depth to saturated zone (1.00) Flooding (0.80) Dusty (0.31) Unstable excavation walls (0.01) 7.3 8.1% Aquolls and Aquepts, flooded Very limited Aquolls (55%) Depth to saturated zone (1.00) Flooding (0.80) Dusty (0.09) Unstable excavation walls (0.01) Aquepts, flooded Depth to (25%) saturated zone (1.00) Flooding (0.80) Dusty (0.00) Unstable excavation walls (0.01) 3.2 3.5% Ascalon sandy loam, 0 to 3 percent slopes Somewhat limited Ascalon (85%) Dusty (0.10) Unstable excavation walls (0.01) Olnest (10%) Dusty (0.09) Unstable excavation walls (0.01) Vona (5%) Unstable excavation walls (0.05) 3.5 3.9% Cascajo gravelly sandy loam, 5 to 20 percent slopes somewhat limited Cascajo (85%) Slope (0.84) Unstable excavation walls (0.83) Dusty (0.03) 0.1 0.1% Colby loam, 1 to 3 percent slopes somewhat limited Colby (85%) Dusty (0.49) Unstable excavation walls (0.01) 2.6 2.9% 44 Custom Soil Resource Report Map unit symbol Map unit name Rating Component name (percent) Rating reasons (numeric values) Acres in AOI Percent of AOI 17 Colby loam, 5 to Somewhat 9 percent limited slopes Colby (90%) Dusty (0.49) Unstable excavation walls (0.01) 2.0 2.2% 33 Kim loam, 3 to 5 Somewhat percent slopes limited Kim (90%) Dusty (0.27) Unstable excavation walls (0.01) 0.4 0.4% 34 Kim loam, 5 to 9 Somewhat percent slopes limited Kim (90%) Dusty (0.27) Unstable excavation walls (0.01) 17 1.9% 41 Nunn clay loam, Somewhat 0 to 1 percent limited slopes Nunn (85%) Dusty (0.34) Unstable excavation walls (0.01) Heldt (10%) Unstable excavation walls (0.55) Dusty (0.49) Too clayey (0.13) Wages (5%) Dusty (0.27) Unstable excavation walls (0.01) 8.4 9.4% 42 Nunn clay loam, Somewhat 1 to 3 percent limited slopes Nunn (85%) Dusty (0.33) Unstable excavation walls (0.01) Heldt (10%) Dusty (0.42) Unstable excavation walls (0.25) Too clayey (0.13) Satanta (5%) Dusty (0.31) Unstable excavation walls (0.01) 4.1 4.6% 47 Olney fine sandy Somewhat loam, 1 to 3 limited percent slopes Olney (85%) Dusty (0.09) Unstable excavation walls (0.01) 9.7 10.8% 48 Olney fine sandy Somewhat loam, 3 to 5 limited percent slopes Olney (85%) Dusty (0.09) Unstable excavation walls (0.01) 0.4 0.4% 45 Custom Soil Resource Report Map unit symbol Map unit name Rating Component name (percent) Rating reasons (numeric values) Acres in AOI Percent of AOI 51 Otero sandy Somewhat loam, 1 to 3 limited percent slopes Otero (85%) Dusty (0.04) Unstable excavation walls (0.01) 0.8 0.9% 52 Otero sandy Somewhat loam, 3 to 5 limited percent slopes Otero (85%) Dusty (0.04) Unstable excavation walls (0.01) 4.4 4.9% 53 Otero sandy Somewhat loam, 5 to 9 limited percent slopes Otero (85%) Dusty (0.04) Unstable excavation walls (0.01) 3.5 3.9% 79 Weld loam, 1 to 3 Somewhat percent slopes limited Weld (80%) Dusty (0.33) Unstable excavation walls (0.01) Adena (8%) Dusty (0.30) Unstable excavation walls (0.01) Colby (7%) Dusty (0.48) Unstable excavation walls (0.01) Keith (3%) Dusty (0.36) Unstable excavation walls (0.01) Baca (2%) Dusty (0.35) Unstable excavation walls (0.01) 14.1 15.8% 82 Wiley -Colby Somewhat complex, 1 to 3 limited percent slopes Wiley (60%) Dusty (0.50) Unstable excavation walls (0.01) Colby (30%) Dusty (0.49) Unstable excavation walls (0.01) 12.5 13.9% 83 Wiley -Colby Somewhat complex, 3 to 5 limited percent slopes Wiley (55%) Dusty (0.50) Unstable excavation walls (0.01) Colby (30%) Dusty (0.49) Unstable excavation walls (0.01) 10.5 .7% 46 Custom Soil Resource Report Map unit symbol Map unit name Rating Component name (percent) Rating (numeric reasons values) Acres in AOI Percent of AO►I 85 Water Not rated Water (95%) 0.4 0.5% Aquolls (5%) Totals for Area of Interest 89.5 100.0% Rating Acres in AOI Percent of AOI Somewhat limited 78.7 87.9% Very limited 10.4 11.7% Null or Not Rated 0.4 0.5% Totals for Area of Interest 89.5 100.0% Rating Options Shallow Excavations (Segment C - North) Aggregation Method: Dominant Condition Component Percent Cutoff• None Specified Tie -break Rule: Higher 47 Custom Soil Resource Report Soil Reports The Soil Reports section includes various formatted tabular and narrative reports (tables) containing data for each selected soil map unit and each component of each unit. No aggregation of data has occurred as is done in reports in the Soil Properties and Qualities and Suitabilities and Limitations sections. The reports contain soil interpretive information as well as basic soil properties and qualities. A description of each report (table) is included. Building Site Development This folder contains a collection of tabular reports that present soil interpretations related to building site development. The reports (tables) include all selected map units and components for each map unit, limiting features and interpretive ratings. Building site development interpretations are designed to be used as tools for evaluating soil suitability and identifying soil limitations for various construction purposes. As part of the interpretation process, the rating applies to each soil in its described condition and does not consider present land use. Example interpretations can include corrosion of concrete and steel, shallow excavations, dwellings with and without basements, small commercial buildings, local roads and streets, and lawns and landscaping. Roads and Streets, Shallow Excavations, and Lawns and Landscaping (Segment C - North) Soil properties influence the development of building sites, including the selection of the site, the design of the structure, construction, performance after construction, and maintenance. This table shows the degree and kind of soil limitations that affect local roads and streets, shallow excavations, and lawns and landscaping. The ratings in the table are both verbal and numerical. Rating class terms indicate the extent to which the soils are limited by all of the soil features that affect building site development. Not limited indicates that the soil has features that are very favorable for the specified use. Good performance and very low maintenance can be expected. Somewhat limited indicates that the soil has features that are moderately favorable for the specified use. The limitations can be overcome or minimized by special planning, design, or installation. Fair performance and moderate maintenance can be expected. Very limited indicates that the soil has one or more features that are unfavorable for the specified use. The limitations generally cannot be overcome without major soil reclamation, special design, or expensive installation procedures. Poor performance and high maintenance can be expected. Numerical ratings in the table indicate the severity of individual limitations. The ratings are shown as decimal fractions ranging from 0.01 to 1.00. They indicate gradations between the point at which a soil feature has the greatest negative impact on the use (1.00) and the point at which the soil feature is not a limitation (0.00). 48 Custom Soil Resource Report Local roads and streets have an all-weather surface and carry automobile and light truck traffic all year. They have a subgrade of cut or fill soil material; a base of gravel, crushed rock, or soil material stabilized by lime or cement; and a surface of flexible material (asphalt), rigid material (concrete), or gravel with a binder. The ratings are based on the soil properties that affect the ease of excavation and grading and the traffic -supporting capacity. The properties that affect the ease of excavation and grading are depth to bedrock or a cemented pan, hardness of bedrock or a cemented pan, depth to a water table, ponding, flooding, the amount of large stones, and slope. The properties that affect the traffic -supporting capacity are soil strength (as inferred from the AASHTO group index number), subsidence, linear extensibility (shrink -swell potential), the potential for frost action, depth to a water table, and ponding. Shallow excavations are trenches or holes dug to a maximum depth of 5 or 6 feet for graves, utility lines, open ditches, or other purposes. The ratings are based on the soil properties that influence the ease of digging and the resistance to sloughing. Depth to bedrock or a cemented pan, hardness of bedrock or a cemented pan, the amount of large stones, and dense layers influence the ease of digging, filling, and compacting. Depth to the seasonal high water table, flooding, and ponding may restrict the period when excavations can be made. Slope influences the ease of using machinery. Soil texture, depth to the water table, and linear extensibility (shrink -swell potential) influence the resistance to sloughing. Lawns and landscaping require soils on which turf and ornamental trees and shrubs can be established and maintained. Irrigation is not considered in the ratings. The ratings are based on the soil properties that affect plant growth and trafficability after vegetation is established. The properties that affect plant growth are reaction; depth to a water table; ponding; depth to bedrock or a cemented pan; the available water capacity in the upper 40 inches; the content of salts, sodium, or calcium carbonate; and sulfidic materials. The properties that affect trafficability are flooding, depth to a water table, ponding, slope, stoniness, and the amount of sand, clay, or organic matter in the surface layer. Information in this table is intended for land use planning, for evaluating land use alternatives, and for planning site investigations prior to design and construction. The information, however, has limitations. For example, estimates and other data generally apply only to that part of the soil between the surface and a depth of 5 to 7 feet. Because of the map scale, small areas of different soils may be included within the mapped areas of a specific soil. The information is not site specific and does not eliminate the need for onsite investigation of the soils or for testing and analysis by personnel experienced in the design and construction of engineering works. Government ordinances and regulations that restrict certain land uses or impose specific design criteria were not considered in preparing the information in this table. Local ordinances and regulations should be considered in planning, in site selection, and in design. Report Roads and Streets, Shallow Excavations, and Lawns and Landscaping (Segment C - North) [onsite investigation may be needed to validate the interpretations in this table and to confirm the identity of the soil on a given site. The numbers in the value columns range from 0.01 to 1.00. The larger the value, the greater the potential limitation. 49 Custom Soil Resource Report The table shows only the top five limitations for any given soil. The soil may have additional limitations] Roads andStreets, Shallow Excavations, and Lawns and Landscaping -Weld County, Colorado,Southern Part Map symbol and soil name Pct. of Lawns and landscaping Local roads and streets Shallow excavations map unit Rating limiting class and features Value Ratingclass and limiting features Value Rating limiting class and features Value 3—Aquolls Aquents, substratum and gravelly Aquolls 55 Very limited Very limited Very limited Flooding 1.00 Flooding 1.00 Depth to saturated zone 1.00 Dusty 0.31 Frost action 0.50 Flooding 0.80 Depth to saturated zone 0.04 Depth to saturated zone 0.04 Dusty 0.31 Unstable excavation walls 0.01 Aquents, substratum gravelly 30 Not rated Very limited Not rated Frost action IMO Flooding 1.00 Depth to saturated zone 0.94 4—Aquolls and Aquepts, flooded Aquolls 55 Not rated Very limited Very limited Frost action 1.00 Depth to saturated zone 1.00 Flooding 1.00 Flooding 0.80 Shrink -swell 0.50 Dusty 0.09 Depth to saturated zone 0.48 Unstable excavation walls 0.01 Aquepts, flooded 25 Not rated Very limited Very limited Frost action 1.00 Depth to saturated zone 1.00 Flooding IMO Flooding 0.80 Shrink -swell 0.50 Dusty 0.09 Depth zone to saturated 0A8 Unstable excavation walls 0.01 5 —Ascalon sandy loam, 0 to 3 percent slopes Ascalon 85 Somewhat limited Somewhat limited Somewhat limited Dusty 0.10 Frost action 0.50 Dusty 0.10 Unstable excavation walls 0.01 50 Custom Soil Resource Report Roads and Streets, Shallow Excavations, and Lawns and Landscaping —Weld County, Colorado, Southern Part Map symbol and soil name Pct. map unit of Lawns and landscaping Local roads and streets Shallow excavations Rating limiting class and features Value Rating class limiting and features Value Rating class and limiting features Value 13—Cascajo gravelly sandy loam, 5 to 20 percent slopes Cascajo 85 Somewhat limited Somewhat limited Somewhat limited Slope 0.84 Slope 0.84 Slope 0.84 Droughty 0.61 Unstable excavation walls 0.83 Low exchange capacity 0.50 Dusty 0.03 Large stones content 0.20 Gravel content 0.10 15 —Colby loam, 1 to 3 percent slopes Colby 85 Somewhat limited Somewhat limited Somewhat limited Low exchange capacity 0.50 Low strength 0.22 Dusty 0.49 Dusty 0.49 Unstable excavation walls 0.01 17 —Colby loam, 5 to 9 percent slopes Colby 90 Somewhat limited Somewhat limited Somewhat limited Low exchange capacity 0.50 Low strength 0.22 Dusty 0.49 Dusty 0.49 Unstable excavation walls 0.01 33 Kim loam, 3 to 5 percent slopes Kim 90 Somewhat limited Not limited Somewhat limited Low exchange capacity 0.50 Dusty 0.27 Dusty 0.27 Unstable excavation walls 0.01 34 —Kim loam, 5 to 9 percent slopes Kim 90 Somewhat limited Not limited Somewhat limited Low exchange capacity 0.50 Dusty 0.27 Dusty 0.27 Unstable excavation walls 0.01 51 Custom Soil Resource Report Roads and Streets, Shallow Excavations, and Lawns and Landscaping —Weld County, Colorado, Southern Part Map symbol and soil name Pct. map unit of Lawns and landscaping Local roads and streets Shallow excavations Rating limiting class and features Value Rating class limiting and features Value Rating class and limiting features Value 41 —Nunn clay loam, slopes 0 to 1 percent Nunn 85 Somewhat limited Very limited Somewhat limited Dusty 0.34 Low strength 1.00 Dusty 0.34 Shrink -swell 0.77 Unstable excavation walls 0.01 42 Nunn clay loam, slopes 1 to 3 percent Nunn 85 Somewhat limited Very limited Somewhat limited Dusty 0.33 Low strength 1.00 Dusty 0.33 Shrink -swell 0.77 Unstable excavation walls 0.01 47 Olney fine sandy to 3 percent loam, 1 slopes Olney 85 Somewhat limited Not limited Somewhat limited Dusty 0.09 Dusty 0.09 Unstable excavation walls 0.01 43 —Olney fine sandy loam, 3 to 5 percent slopes Olney 85 Somewhat limited Not limited Somewhat limited Dusty 0.09 Dusty 0.09 Unstable excavation walls 0.01 51 —Otero loam, 1 slopes sandy to 3 percent Otero 85 Somewhat limited Not limited Somewhat limited Low exchange capacity 0.50 Dusty 0.04 Dusty 0.04 Unstable excavation walls 0.01 52 Otero sandy to 5 percent loam, 3 slopes Otero 85 Somewhat limited Not limited Somewhat limited Low exchange capacity 0.50 Dusty 0.04 Dusty 0.04 Unstable excavation walls 0.01 52 Custom Soil Resource Report Roads and Streets, Shallow Excavations, and Lawns and Landscaping -Weld County, Colorado, Southern Part Map symbol and soil name Pct. map unit of Lawns and landscaping Local roads and streets Shallow excavations Rating limiting class and features Value Rating class limiting features and Value Rating class and limiting features Value 53 —Otero sandy loam, 5 to 9 percent slopes Otero 85 Somewhat limited Not limited Somewhat limited Low exchange capacity 0.50 Dusty 0.04 Dusty 0.04 Unstable excavation walls 0.01 79 Weld loam, 1 to 3 slopes percent Weld 80 Somewhat limited Very limited Somewhat limited Dusty 0.33 Low strength 1.00 Dusty 0.33 Shrink -swell 0.01 Unstable excavation walls 0.01 82 —Wiley -Colby complex, 1 to 3 percent slopes Wiley 60 Somewhat limited Very limited Somewhat limited Dusty 0.50 Low strength 1.00 Dusty 0.50 Shrink -swell 0.42 Unstable excavation walls 0.01 Colby 30 Somewhat limited Somewhat limited Somewhat limited Low exchange capacity 0.50 Low strength 0.22 Dusty 4.49► Dusty 0.49 Unstable excavation walls 0.01 83 —Wiley -Colby complex, 3 to 5 percent slopes Wiley 55 Somewhat limited Very limited Somewhat limited Dusty 0.50 Low strength 1.00 Dusty 0.50 Shrink -swell 0.42 Unstable excavation walls 0.01 Colby 30 Somewhat limited Somewhat limited Somewhat limited Low exchange capacity 0.50 Low strength 0.22 Dusty 0.49 Dusty 0.49 Unstable walls excavation O01 85 Water Water 95 Not rated Not rated Not rated 53 References American Association of State Highway and Transportation Officials (AASHTG). 2004. Standard specifications for transportation materials and methods of sampling and testing. 24th edition. American Society for Testing and Materials (ASTM). 2005. Standard classification of soils for engineering purposes. ASTM Standard D2487-00. Cowardin, L.M., V. Carter, F.C. Golet, and E.T. LaRoe. 1979. Classification of wetlands and deep -water habitats of the United States. L.S. Fish and Wildlife Service FWS/OBS-79/31. Federal Register. July 13, 1994. Changes in hydric soils of the United States. Federal Register. September 18, 2002. Hydric soils of the United States. Hurt, G.W., and L.M. Vasilas, editors. Version 6.0, 2006. Field indicators of hydric soils in the United States. N ational Research Council. 1995. Wetlands: Characteristics and boundaries. Soil Survey Division Staff. 1993. Soil survey manual. Soil Conservation Service. U .S. Department of Agriculture Handbook 18. http://www.nres.usda.gov/wps!portal/ nres/detail/national/soils/?cid=nres142p2_054262 Soil Survey Staff. 1999. Soil taxonomy: A basic system of soil classification for making and interpreting soil surveys. 2nd edition. Natural Resources Conservation Service, U.S. Department of Agriculture Handbook 436. http:// www.nres. usda.gov/wps/portal/nres/detail/national/soils/?cid=nres142p2_053577 Soil Survey Staff. 2010. Keys to soil taxonomy. 11th edition. U.S. Department of Agriculture, Natural Resources Conservation Service. http:// wvwv.nres. usda.goviwps/portal/nres/detail/national/soils/?cid=nres142p2_053580 Tiner, R.'W., Jr. 1985. Wetlands of Delaware. U.S. Fish and Wildlife Service and Delaware Department of Natural Resources and Environmental Control, Wetlands Section. U nited States Army Corps of Engineers, Environmental Laboratory. 1987. Corps of Engineers wetlands delineation manual. Waterways Experiment Station Technical Report Y-87-1. U nited States Department of Agriculture, Natural Resources Conservation Service. N ational forestry manual. http://wv► w.nres.usda.gov/wps/portal/nres/detail/soils/ home/?cid=nres142p2_053374 U nited States Department of Agriculture, Natural Resources Conservation Service. N ational range and pasture handbook. http://w w.nres.usda.gov/wps/portal/nres/ detail/national/landuse/rangepasture/?cid=stelprdb 1043084 54 Custom Soil Resource Report U nited States Department of Agriculture, Natural Resources Conservation Service. N ational soil survey handbook, title 430 -VI. http://wv.nres.usda.gov/wps/portal/ nres/detail/soilslscientists/'cid=nres1 42p2_054242 United States Department of Agriculture, Natural Resources Conservation Service. 2006. Land resource regions and major land resource areas of the United States, the Caribbean, and the Pacific Basin. U.S. Department of Agriculture Handbook 296. http://www.nrcs.usda.goviwpsiportalinrcsidetailinationalisoilsi? ci d = n res 142 p2_053 524 U nited States Department of Agriculture, Soil Conservation Service. 1961. Land capability classification. U.S. Department of Agriculture Handbook 210. http:// www.nrcs.usda.gov/Internet/FSE DOCUMENTS/nrcs142p2 052290.pdf 55 USDA United States al Department of Agriculture \RCS Natural Resources Conservation Service A product of the National Cooperative Soil Survey, a joint effort of the United States Department of Agriculture and other Federal agencies, State agencies including the Agricultural Experiment Stations, and local participants Custom Soil Resource Report for Adams County Area, Parts of Adams and Denver Counties, Colorado; and Weld County, Colorado, Southern Part Segments Band C - South January 12, 2021 Preface Soil surveys contain information that affects land use planning in survey areas. They highlight soil limitations that affect various land uses and provide information about the properties of the soils in the survey areas. Soil surveys are designed for many different users, including farmers, ranchers, foresters, agronomists, urban planners, community officials, engineers, developers, builders, and home buyers. Also, conservationists, teachers, students, and specialists in recreation, waste disposal, and pollution control can use the surveys to help them understand, protect, or enhance the environment. Various land use regulations of Federal, State, and local governments may impose special restrictions on land use or land treatment. Soil surveys identify soil properties that are used in making various land use or land treatment decisions_ The information is intended to help the land users identify and reduce the effects of soil limitations on various land uses. The landowner or user is responsible for identifying and complying with existing laws and regulations. Although soil survey information can be used for general farm, local, and wider area planning, onsite investigation is needed to supplement this information in some cases. Examples include soil quality assessments (http://www.nres.usda.gov/wps/ portal/arcs/main/soils/health/) and certain conservation and engineering applications. For more detailed information, contact your local USDA Service Center (https://offices.sc.egov.usda.gov/locator/app?agency=arcs) or your NRCS State Soil Scientist (http://www.nres.usda.govtwps/portal/nres/detail/soils/contactus/? ci d = n res 142 p2_053951). Great differences in soil properties can occur within short distances. Some soils are seasonally wet or subject to flooding. Some are too unstable to be used as a foundation for buildings or roads. Clayey or wet soils are poorly suited to use as septic tank absorption fields. A high water table makes a soil poorly suited to basements or underground installations. The National Cooperative Soil Survey is a joint effort of the United States Department of Agriculture and other Federal agencies, State agencies including the Agricultural Experiment Stations, and local agencies. The Natural Resources Conservation Service (NRCS) has leadership for the Federal pad of the National Cooperative Soil Survey. Information about soils is updated periodically. Updated information is available through the NRCS Web Soil Survey, the site for official soil survey information. The U.S. Department of Agriculture (USDA) prohibits discrimination in all its programs and activities on the basis of race, color, national origin, age, disability, and where applicable, sex, marital status, familial status, parental status, religion, sexual orientation, genetic information, political beliefs, reprisal, or because all or a part of an individual's income is derived from any public assistance program. (Not all prohibited bases apply to all programs.) Persons with disabilities who require 2 alternative means for communication of program information (Braille, large print, audiotape, etc.) should contact USDA's TARGET Center at (202) 720-2600 (voice and TDD). To file a complaint of discrimination, write to USDA, Director, Office of Civil Rights, 1400 Independence Avenue, S.W., Washington, D.C. 20250-9410 or call (800) 795-3272 (voice) or (202) 720-6382 (TDD). USDA is an equal opportunity provider and employer. 3 Contents Preface 2 How Soil Surveys Are Made..6 Soil Map 9 Soil Map10 Legend 11 Map Unit Legend13 Map Unit Descriptions14 Adams County Area, Parts of Adams and Denver Counties, Colorado 17 UIC Ulm loam, 3 to 5 percent slopes 17 Weld County, Colorado, Southern Part 19 1 Altvan loam, 0 to 1 percent slopes 19 3 Aquolls and Aquents, gravelly substratum.20 4 Aquolls and Aquepts, flooded..21 6 -Ascalon sandy loam, 3 to 5 percent slopes 23 10 —Ellicott -Ellicott sandy -skeletal complex, 0 to 3 percent slopes, rarely flooded.25 27 Heldt silty clay, 1 to 3 percent slopes 27 32 Kim loam, 1 to 3 percent slopes28 33 Kim loam, 3 to 5 percent slopes29 34 Kim loam, 5 to 9 percent slopes30 35 Loup-Boel loamy sands, 0 to 3 percent slopes.31 39 Nunn loam, 0 to 1 percent slopes.33 40 Nunn loam, 1 to 3 percent slopes.34 41 Nunn clay loam, 0 to 1 percent slopes 36 42 Nunn clay loam, 1 to 3 percent slopes 37 44 Olney loamy sand, 1 to 3 percent slopes.39 47 Olney fine sandy loam, 1 to 3 percent slopes 40 48 Olney fine sandy loam, 3 to 5 percent slopes 41 57 Renohill clay loam, 3 to 9 percent slopes 42 61 Tassel fine sandy loam, 5 to 20 percent slopes.43 64 Thedalund loam, 1 to 3 percent slopes 44 65 Thedalund loam, 3 to 9 percent slopes 45 67 Ulm clay loam, 3 to 5 percent slopes.47 70 Valent sand, 3 to 9 percent slopes 48 72 Vona loamy sand, 0 to 3 percent slopes 50 73 Vona loamy sand, 3 to 5 percent slopes 51 76 Vona sandy loam, 1 to 3 percent slopes 53 77 Vona sandy loam, 3 to 5 percent slopes 54 78 Weld loam, 0 to 1 percent slopes 55 79 Weld loam, 1 to 3 percent slopes 57 81 Wiley -Colby complex, 0 to 1 percent slopes 59 82 Wiley -Colby complex, 1 to 3 percent slopes 60 83 Wiley -Colby complex, 3 to 5 percent slopes 62 85 Water64 4 Custom Soil Resource Report Soil Information for All Uses65 Suitabilities and Limitations for Use 65 Building Site Development65 Shallow Excavations (Segments B and C - South) 65 Soil Reports77 Building Site Development77 Roads and Streets, Shallow Excavations, and Lawns and Landscaping (Segments B and C - South) 77 References.87 5 How Soil Surveys Are Made Soil surveys are made to provide information about the soils and miscellaneous areas in a specific area. They include a description of the soils and miscellaneous areas and their location on the landscape and tables that show soil properties and limitations affecting various uses_ Soil scientists observed the steepness, length, and shape of the slopes; the general pattern of drainage; the kinds of crops and native plants; and the kinds of bedrock. They observed and described many soil profiles_ A soil profile is the sequence of natural layers, or horizons, in a soil. The profile extends from the surface down into the unconsolidated material in which the soil formed or from the surface down to bedrock. The unconsolidated material is devoid of roots and other living organisms and has not been changed by other biological activity. Currently, soils are mapped according to the boundaries of major land resource areas (MLRAs). MLRAs are geographically associated land resource units that share common characteristics related to physiography, geology, climate, water resources, soils, biological resources, and land uses (USDA, 2006). Soil survey areas typically consist of parts of one or more MLRA. The soils and miscellaneous areas in a survey area occur in an orderly pattern that is related to the geology, landforms, relief, climate, and natural vegetation of the area. Each kind of soil and miscellaneous area is associated with a particular kind of landform or with a segment of the landform. By observing the soils and miscellaneous areas in the survey area and relating their position to specific segments of the landform, a soil scientist develops a concept, or model, of how they were formed. Thus, during mapping, this model enables the soil scientist to predict with a considerable degree of accuracy the kind of soil or miscellaneous area at a specific location on the landscape. Commonly, individual soils on the landscape merge into one another as their characteristics gradually change. To construct an accurate soil map, however, soil scientists must determine the boundaries between the soils_ They can observe only a limited number of soil profiles. Nevertheless, these observations, supplemented by an understanding of the soil -vegetation -landscape relationship, are sufficient to verify predictions of the kinds of soil in an area and to determine the boundaries_ Soil scientists recorded the characteristics of the soil profiles that they studied. They noted soil color, texture, size and shape of soil aggregates, kind and amount of rock fragments, distribution of plant roots, reaction, and other features that enable them to identify soils. After describing the soils in the survey area and determining their properties, the soil scientists assigned the soils to taxonomic classes (units). Taxonomic classes are concepts. Each taxonomic class has a set of soil characteristics with precisely defined limits_ The classes are used as a basis for comparison to classify soils systematically. Soil taxonomy, the system of taxonomic classification used in the United States, is based mainly on the kind and character of soil properties and the arrangement of horizons within the profile_ After the soil 6 Custom Soil Resource Report scientists classified and named the soils in the survey area, they► compared the individual soils with similar soils in the same taxonomic class in other areas so that they could confirm data and assemble additional data based on experience and research. The objective of soil mapping is not to delineate pure map unit components; the objective is to separate the landscape into landforms or landform segments that have similar use and management requirements. Each map unit is defined by a unique combination of soil components and/or miscellaneous areas in predictable proportions. Some components may be highly contrasting to the other components of the map unit. The presence of minor components in a map unit in no way diminishes the usefulness or accuracy of the data. The delineation of such landforms and landform segments on the map provides sufficient information for the development of resource plans. If intensive use of small areas is planned, onsite investigation is needed to define and locate the soils and miscellaneous areas. Soil scientists make many field observations in the process of producing a soil map. The frequency of observation is dependent upon several factors, including scale of mapping, intensity of mapping, design of map units, complexity of the landscape, and experience of the soil scientist. Observations are made to test and refine the soil -landscape model and predictions and to verify the classification of the soils at specific locations. Once the soil -landscape model is refined, a significantly smaller number of measurements of individual soil properties are made and recorded. These measurements may include field measurements, such as those for color, depth to bedrock, and texture, and laboratory measurements, such as those for content of sand, silt, clay, salt, and other components. Properties of each soil typically vary from one point to another across the landscape. Observations for map unit components are aggregated to develop ranges of characteristics for the components. The aggregated values are presented. Direct measurements do not exist for every property presented for every map unit component. Values for some properties are estimated from combinations of other properties. While a soil survey is in progress, samples of some of the soils in the area generally are collected for laboratory analyses and for engineering tests. Soil scientists interpret the data from these analyses and tests as well as the field -observed characteristics and the soil properties to determine the expected behavior of the soils under different uses. Interpretations for all of the soils are field tested through observation of the soils in different uses and under different levels of management. Some interpretations are modified to fit local conditions, and some new interpretations are developed to meet local needs. Data are assembled from other sources, such as research information, production records, and field experience of specialists. For example, data on crop yields under defined levels of management are assembled from farm records and from field or plot experiments on the same kinds of soil. Predictions about soil behavior are based not only on soil properties but also on such variables as climate and biological activity. Soil conditions are predictable over long periods of time, but they are not predictable from year to year. For example, soil scientists can predict with a fairly high degree of accuracy that a given soil will have a high water table within certain depths in most years, but they cannot predict that a high water table will always be at a specific level in the soil on a specific date. After soil scientists located and identified the significant natural bodies of soil in the survey area, they drew the boundaries of these bodies on aerial photographs and 7 Custom Soil Resource Report identified each as a specific map unit. Aerial photographs show trees, buildings, fields, roads, and rivers, all of which help in locating boundaries accurately. Soil Map The soil map section includes the soil map for the defined area of interest, a list of soil map units on the map and extent of each map unit, and cartographic symbols displayed on the map. Also presented are various metadata about data used to produce the map, and a description of each soil map unit. 9 Custom Soil Resource Report Soil Map a0° 2710- N r 39C Me in' I I 105° 3' 30' W i 1 5032O) Maps Sole: 1:114,000 if printed on B portrait (11" x 17) mat. Meters N o 1500 3000 I 0 5000 ICOX 71101 511000 515000 519000 4o 2ar ITN 'J' li:' f, WOO 9X0 eFed: 20:00 3ocoo Map projection: vleb Merpitnl- Cane- coordinates: " G584 Edgetts: UFM Zone 13N'WGSE34 10 Custom Soil Resource Report MAP LEGEND Area of Interest (AQI) Area of Interest (AOI) Soils O Soil Map Unit Polygons Soil Map Unit Lines Soil Map Unit Points Special Point Features t, Blowout Borrow Pit Clay Spot Closed Depression Gravel Pit Gravelly Spot Landfill Lava Flow Marsh or swamp Mine or Quarry Miscellaneous Water Perennial Water Rock Outcrop Saline Spot Sandy Spot Severely Eroded Spot Sinkhole Slide or Slip Sodic Spot JP - 51.. 4i a Spoil Area Stony Spot Very Stony Spot Wet Spot Other Special Line Features Water Features Streams and Canals Transportation Rails Interstate Highways US Routes Major Roads Local Roads Background Aerial Photography MAP INFORMATION The soil surveys that comprise your AOI were mapped at scales ranging from 1:20,000 to 1:24,000. Please rely on the bar scale on each map sheet for map measurements. Source of Map: Natural Resources Conservation Service Web Soil Survey URL: Coordinate System: Web Mercator (EPSG:3857) Maps from the Web Soil Survey are based on the Web Mercator projection, which preserves direction and shape but distorts distance and area. A projection that preserves area, such as the Albers equal-area conic projection, should be used if more accurate calculations of distance or area are required. This product is generated from the USDA-NRCS certified data as of the version date(s) listed below. Soil Survey Area: Adams County Area, Parts of Adams and Denver Counties, Colorado Survey Area Data: Version 17, Jun 4, 2020 Soil Survey Area: Weld County, Colorado, Southern Part Survey Area Data: Version 19, Jun 5, 2020 Your area of interest (AOl) includes more than one soil survey area. These survey areas may have been mapped at different scales, with a different land use in mind, at different times, or at different levels of detail. This may result in map unit symbols, soil properties, and interpretations that do not completely agree across soil survey area boundaries. Soil map units are labeled (as space allows) for map scales 1:50,000 or larger. Date(s) aerial images were photographed: Jul 19, 2018 Dec 4, 2018 The orthophoto or other base map on which the soil lines were compiled and digitized probably differs from the background Custom Soil Resource Report MAP LEGEND MAP INFORMATION imagery displayed on these maps. As a result, some minor shifting of map unit boundaries may be evident. Custom Soil Resource Report Map Unit Legend Map Unit Symbol Map Unit Name Acres in AOI Percent of AOI U I C Ulm loam, 3 to 5 percent slopes 0.0 0.0% Subtotals for Soil Survey Area 0.0 0.0% Totals for Area of Interest 2£6.4 100.0% Map Unit Symbol Map Unit Name Acres in AOI Percent of AOI 1 Altvan loam, 0 to slopes 1 percent 1.9 0.7% 3 Aquolls and Aquents, substratum gravelly 8.1 3.1% 4 Aqualls and Aquepts, flooded 2.1 0.8% 6 Ascalon sandy loam, 3 to 5 percent slopes 0.7 0.3% 10 Ellicott -Ellicott sandy -skeletal complex, 0 to 3 percent slopes, rarely flooded 0.4 0.1% 27 Heldt silty clay, 1 slopes to 3 percent 5.6 2.1% 32 Kim loam, 1 to 3 percent slopes 0.7 0.3% 33 Kim loam, 3 to 5 percent slopes 3.6 1.4% 34 Kim loam, 5 to 9 percent slopes 9.8 3.7% 35 Loup-Boel loamy sands, 0 to 3 percent slopes 1.0 0.4% 39 Nunn loam, 0 to 1 percent slopes 3.5 1.3% 40 Nunn loam, 1 to 3 percent slopes 2.8 1.1% 41 Nunn clay loam, 0 to 1 slopes percent 8.2 3.1% 42 Nunn clay loam, 1 to 3 percent slopes 26.9 10.1% 44 Olney loamy sand, 1 to 3 percent slopes 2.8 1.1% 47 Olney fine sandy loam, 1 to 3 percent slopes 20.8 7.8% 48 Olney fine sandy loam, 3 to 5 percent slopes 3.0 1.1% 57 Renohill clay loam, 3 to 9 percent slopes 1.9 0.7% 61 Tassel fine sandy percent slopes loam, 5 to 20 5.6 2.1% 64 Thedalund loam, 1 to 3 percent slopes 0.5 0.2% 13 Custom Soil Resource Report Map Unit Symbol Map Unit Name Acres in AOI Percent of AOI 65 Thedalund loam, 3 to 9 percent slopes 0.8 0.3% 67 Ulm clay loam, 3 to 5 percent slopes 1.9 0.7% 70 Valent sand, 3 to 9 percent slopes 3.7 1.4% 72 Vona loamy sand, 0 to 3 percent slopes 30.4 11.4% 73 Vona loamy sand, 3 to 5 percent slopes 9.6 3.6% 76 Vona sandy loam, 1 to 3 percent slopes 1.6 0.6% 77 Vona sandy loam, 3 to 5 percent slopes 3.5 1.3% 78 Weld loam, 0 slopes to 1 percent 2.6 1.0% 79 Weld loam, 1 to 3 percent slopes 22.3 8.4% 81 Wiley -Colby complex, 0 to 1 percent slopes 2.6 1.0% 82 Wiley -Colby complex, 1 to 3 percent slopes 60.2 22.6% 83 Wiley -Colby complex, 3 to 5 percent slopes 17.0 6.4% 85 Water 0.2 0.1% Subtotals for Soil Survey Area 266.4 100.0% Totals for Area of Interest 266.4 100.0% Map Unit Descriptions The map units delineated on the detailed soil maps in a soil survey represent the soils or miscellaneous areas in the survey area. The map unit descriptions, along with the maps, can be used to determine the composition and properties of a unit. A map unit delineation on a soil map represents an area dominated by one or more major kinds of soil or miscellaneous areas. A map unit is identified and named according to the taxonomic classification of the dominant soils. Within a taxonomic class there are precisely defined limits for the properties of the soils. On the landscape, however, the soils are natural phenomena, and they have the characteristic variability of all natural phenomena. Thus, the range of some observed properties may extend beyond the limits defined for a taxonomic class. Areas of soils of a single taxonomic class rarely, if ever, can be mapped without including areas of other taxonomic classes. Consequently, every map unit is made up of the soils or miscellaneous areas for which it is named and some minor components that belong to taxonomic classes other than those of the major soils. Most minor soils have properties similar to those of the dominant soil or soils in the map unit, and thus they do not affect use and management. These are called 14 Custom Soil Resource Report noncontrasting, or similar, components. They may or may not be mentioned in a particular map unit description. Other minor components, however, have properties and behavioral characteristics divergent enough to affect use or to require different management. These are called contrasting, or dissimilar, components. They generally are in small areas and could not be mapped separately because of the scale used. Some small areas of strongly contrasting soils or miscellaneous areas are identified by a special symbol on the maps. If included in the database for a given area, the contrasting minor components are identified in the map unit descriptions along with some characteristics of each. A few areas of minor components may not have been observed, and consequently they are not mentioned in the descriptions, especially where the pattern was so complex that it was impractical to make enough observations to identify all the soils and miscellaneous areas on the landscape. The presence of minor components in a map unit in no way diminishes the usefulness or accuracy of the data. The objective of mapping is not to delineate pure taxonomic classes but rather to separate the landscape into landforms or landform segments that have similar use and management requirements. The delineation of such segments on the map provides sufficient information for the development of resource plans. If intensive use of small areas is planned, however, onsite investigation is needed to define and locate the soils and miscellaneous areas An identifying symbol precedes the map unit name in the map unit descriptions. Each description includes general facts about the unit and gives important soil properties and qualities. Soils that have profiles that are almost alike make up a soil series. Except for differences in texture of the surface layer, all the soils of a series have major horizons that are similar in composition, thickness, and arrangement. Soils of one series can differ in texture of the surface layer, slope, stoniness, salinity, degree of erosion, and other characteristics that affect their use. On the basis of such differences, a soil series is divided into soil phases. Most of the areas shown on the detailed soil maps are phases of soil series. The name of a soil phase commonly indicates a feature that affects use or management. For example, Alpha silt loam, 0 to 2 percent slopes, is a phase of the Alpha series. Some map units are made up of two or more major soils or miscellaneous areas. These map units are complexes, associations, or undifferentiated groups. A complex consists of two or more soils or miscellaneous areas in such an intricate pattern or in such small areas that they cannot be shown separately on the maps. The pattern and proportion of the soils or miscellaneous areas are somewhat similar in all areas. Alpha -Beta complex, 0 to 6 percent slopes, is an example. An association is made up of two or more geographically associated soils or miscellaneous areas that are shown as one unit on the maps. Because of present or anticipated uses of the map units in the survey area, it was not considered practical or necessary to map the soils or miscellaneous areas separately. The pattern and relative proportion of the soils or miscellaneous areas are somewhat similar. Alpha -Beta association, 0 to 2 percent slopes, is an example. An undifferentiated group is made up of two or more soils or miscellaneous areas that could be mapped individually but are mapped as one unit because similar interpretations can be made for use and management. The pattern and proportion of the soils or miscellaneous areas in a mapped area are not uniform. An area can 15 Custom Soil Resource Report be made up of only one of the major soils or miscellaneous areas, or it can be made up of all of them. Alpha and Beta soils, 0 to 2 percent slopes, is an example. Some surveys include miscellaneous areas. Such areas have little or no soil material and support little or no vegetation. Rock outcrop is an example. 16 Custom Soil Resource Report Adams County Area, Parts of Adams and Denver Counties, Colorado UIC Ulm loam, 3 to 5 percent slopes Map Unit Setting National map unit symbol: 34x4 Elevation: 4,000 to 5,600 feet Mean annual precipitation: 12 to 14 inches Mean annual air temperature: 48 to 52 degrees F Frost -free period: 125 to 155 days Farmland classification: Prime farmland if irrigated Map Unit Composition Ulm and similar soils: 80 percent Minor components: 20 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Ulm Setting Landform: Plains Landform position (three-dimensional): Talf Down -slope shape: Linear Across -slope shape: Linear Parent material: Residuum weathered from sandstone and shale Typical profile H1 - 0 to 7 inches: loam H2 - 7 to 13 inches: silty clay H3 - 13 to 30 inches: clay H4 - 30 to 48 inches: clay loam H5 - 48 to 52 inches: unweathered bedrock Properties andqualities Slope: 3 to 5 percent Depth to restrictive feature: 40 to 00 inches to paralithic bedrock Drainage class: Well drained Runoff class: Low Capacity of the most limiting layer to transmit water (sat): Moderately low to moderately high (0.00 to 0.20 in/hr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Calcium carbonate, maximum content: 15 percent Maximum salinity: Nonsaline to very slightly saline (0.0 to 2.0 mmhoslcm) Available water capacity: Moderate (about 8.2 inches) Interpretive groups Land capability classification (irrigated): 3e Land capability classification (nonirrigated): 4e Hydrologic Soil Group: C Ecological site: R06IBYo02CO - Loamy Plains Hydric soil rating: No Custom Soil Resource Report Minor Components Renohill Percent of map unit: 13 percent Hydric soil rating: No Shingle Percent of map unit: 5 percent Hydric soil rating: No Apishapa Percent of map unit: 2 percent Landform: Swales Hydric soil rating: Yes Custom Soil Resource Report Weld County, Colorado, Southern Part Altvan loam, 0 to 1 percent slopes Map Unit Setting National map unit symbol: 361j Elevation: 4,500 to 4,900 feet Mean annual precipitation: 14 to 16 inches Mean annual air temperature: 46 to 48 degrees F Frost -free period: 130 to 150 days Farmland classification: Not prime farmland Map Unit Composition Altvan and similar soils: 90 percent Minor components: 10 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Altvan Setting Landforrn: Terraces Down -slope shape: Linear Across -slope shape: Linear Parent material: Old alluvium Typical profile H1 - 0 to 10 inches: loam H2 - 10 to 25 inches: clay loam H3 - 25 to 60 inches: gravelly sand Properties and qualities Slope: 0 to 1 percent Depth to restrictive feature: More than 80 inches Drainage class: Well drained Runoff class: Low Capacity of the most limiting layer to transmit water (Ksat): Moderately high to high (0.20 to 2.00 inlhr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Calcium carbonate, maximum content: 5 percent Available water capacity: Low (about 5.7 inches) Interpretive groups Land capability classification (irrigated): 3s Land capability classification (nonirrigated): 4e Hydrologic Soil Group: B Ecological site: R067BY002O - Loamy Plains Hydric soil rating: No Minor Components Cascajo Percent of map unit: 9 percent Hydric soil rating: No 19 Custom Soil Resource Report Aquic haplustolls Percent of map unit 1 percent Landform: Swales Hydric soil rating: Yes 3 Aquolls and Aquents, gravelly substratum Map Unit Setting National map unit symbol: 3627 Elevation: 4,000 to 7,200 feet Mean annual precipitation: 12 to 18 inches Mean annual air temperature: 45 to 55 degrees F Frost -free period: 80 to 155 days Farmland classification: Prime farmland if drained and either protected from flooding or not frequently flooded during the growing season Map Unit Composition Aquolls and similar soils: 55 percent Aquents, gravelly substratum, and similar soils: 30 percent Minor components: 15 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of A►quolis Setting Landform: Streams, flood plains, swales Down -slope shape: Linear Across -slope shape: Linear Parent material: Recent alluvium Typical profile H9 - 0 to 48 inches: loam H2 - 48 to 60 inches: gravelly sand Properties and qualities Slope: 0 to 3 percent Depth to restrictive feature: More than 80 inches Drainage class: Poorly drained Runoff class: Low Capacity of the most limiting layer to transmit water (Ksat): Moderately high to high (0.20 to 2.00 inlhr) Depth to water table: About 6 to 48 inches Frequency of flooding: FrequentNone Frequency of ponding: None Maximum salinity: Nonsaline to slightly saline (0.0 to 4.0 mmhoslcrn) Available water capacity: Moderate (about 8.0 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 6w Custom Soil Resource Report Hydrologic Soil Group: D Ecological site: R007BY035CO - Salt Meadow Hydric soil rating: Yes Description of Aquents, Gravelly Substratum Setting Landform: Stream terraces Down -slope shape: Linear Across -slope shape: Linear Parent material: Recent alluvium Typical profile HI - 0 to 48 inches: variable H2 - 48 to 60 inches: very gravelly sand Properties and qualities Slope: 0 to 3 percent Depth to restrictive feature: More than 80 inches Drainage class: Poorly drained Runoff class: Very high Capacity of the most limiting layer to transmit water (Ksat): Moderately high to very high (0.57 to 19.98 inlh r) Depth to water table: About 6 to 24 inches Frequency of flooding: FrequentNone Frequency of ponding: None Calcium carbonate, maximum content: 10 percent Maximum salinity: Nonsaline to moderately saline (0.0 to 8.0 mmhoslcm) Available water capacity: Moderate (about 6.6 inches) Interpretive groups Land capability classification (irrigated): 6w Land capability classification (nonirrigated): 6w Hydrologic Soil Group: D Ecological site: R007BY0 5 0 - Salt Meadow Hydric soil rating: Yes Minor Components Bankard Percent of map unit: 10 percent Hydric soil rating: No Ustic torrifluvents Percent of map unit: 5 percent Hydric soil rating: No —Aquolls and Aquepts, flooded Map Unit Setting National map unit symbol: 3621 21 Custom Soil Resource Report Elevation: 3,600 to 4,700 feet Mean annual precipitation: 12 to 16 inches Mean annual air temperature: 50 to 55 degrees F Frost -free period: 100 to 165 days Farmland classification: Prime farmland if drained and either protected from flooding or not frequently flooded during the growing season Map Unit Composition Aquolls and similar soils: 55 percent Aquepts, flooded, and similar soils: 25 percent Minor components: 20 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Aquolls Setting Landform: Drainageways, plains, depressions Down -slope shape: Linear Across -slope shape: Linear Parent material: Recent alluvium Typical profile Hi - 0 to 8 inches: variable H2 - 8 to 60 inches: stratified sandy loam to clay Properties and qualities Slope: 0 to 3 percent Depth to restrictive feature: More than 80 inches Drainage class: Poorly drained Runoff class: Very low Capacity of the most limiting layer to transmit water (Ksat): Moderately low to high (0.06 to 6.00 in/hr) Depth to water table: About 6 to 36 inches Frequency of flooding: FreguentNone Frequency of ponding: None Calcium carbonate, maximum content: 10 percent Maximum salinity: Moderately saline to strongly saline (8.0 to 16.0 mmhoslcm) Sodium adsorption ratio, maximum: 5.0 Available water capacity: Low (about 4.7 inches) Interpretive groups Land capability classification (irrigated): 6w Land capability classification (nonirrigated): 6w Hydrologic Soil Group: D Ecological site: R067BY035CO - Salt Meadow Hydric soil rating: Yes Description of Aquepts, Flooded Setting Landform: Stream terraces Down -slope shape: Linear Across -slope shape: Linear Parent material: Recent alluvium Typical profile Hi - 0 to 8 inches: variable Custom Soil Resource Report H2 - 8 to 60 inches: stratified sandy loam to clay Properties and qualities Slope: 0 to 3 percent Depth to restrictive feature: More than 80 inches Drainage class: Poorly drained Runoff class: Very low Capacity of the most limiting layer to transmit water (Ksat): Moderately low to high (0.06 to 6.00 inlhr) Depth to water table: About 6 to 36 inches Frequency of flooding: FrequentNone Frequency of ponding: None Calcium carbonate, maximum content: 10 percent Maximum salinity: Moderately saline to strongly saline (8.0 to 16.0 mmhoslcm) Sodium adsorption ratio, maximum: 5.0 Available water capacity: Low (about 4.7 inches) Interpretive groups Land capability classification (irrigated): 6w Land capability classification (nonirrigated): 6w Hydrologic Soil Group: D Ecological site: R067BY038CO 0 - Wet Meadow Hydric soil rating: Yes Minor Components Haverson rs o n Percent of map unit 10 Hydric soil rating: No Thedalund Percent of map unit: 10 Hydric soil rating: No percent percent 6 Ascalon sandy loam, 3 to 5 percent slopes Map Unit Setting National map unit symbol: 2tlnt Elevation: 3,550 to 5,970 feet Mean annual precipitation: 12 to 16 inches Mean annual air temperature: 46 to 57 degrees F Frost -free period: 135 to 160 days Farmland classification: Prime farmland if irrigated and the product of I (soil erodibility) x C (climate factor) does not exceed 60 Map Unit Composition Ascalon and similar soils: 80 percent Minor components: 20 percent Estimates are based onobservations, descriptions, and transacts of the mapunit. Custom Soil Resource Report Description of Ascalon Setting Landform: I nterfl uves Landform position (two-dimensional): Shoulder, summit Landform position (three-dimensional): Interfluve Down -slope shape: Linear Across -slope shape: Linear Parent material: Wind -reworked alluvium and/or calcareous sandy eolian deposits Typical profile Ap - 0 to 6 inches: sandy loam Bt7 - 6 to 12 inches: sandy clay loam Bt2 - 12 to 19 inches: sandy clay loam Bk - 19 to 35 inches: sandy clay loam C - 35 to 80 inches: sandy loam Properties and qualities Slope: 3 to 5 percent Depth to restrictive feature: More than 80 inches Drainage class: Well drained Runoff class: Low Capacity of the most limiting layer to transmit water (sat): Moderately high to high (0.60 to 6.00 inlhr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Calcium carbonate, maximum content: 10 percent Maximum salinity: Nonsaline (0.1 to 1.9 mmhos/cm) Sodium adsorption ratio, maximum: 1.0 Available water capacity: Moderate (about 6.9 inches) Interpretive groups Land capability classification (irrigated): 3e Land capability classification (nonirrigated): 4c Hydrologic Soil Group: B Ecological site: R067BYO24 0 - Sandy Plains, R072XY111KS Sandy Plains Hydric soil rating: No Minor Components Stoneham Percent of map unit: 10 percent Landform: I nterfl eves Landform position (two-dimensional): Shoulder, summit Landform position (three-dimensional): Interfluve Down -slope shape: Linear Across -slope shape: Linear Ecological site: R0O7BY002OO Loamy Plains, R072XYI O0K - Loamy Tableland Hydric soil rating: No Vona Percent of map unit: 8 percent Landform: I nterfl uves Landform position (two-dimensional): Backslope, fo0tslope, shoulder Landform position (three-dimensional): Interfluve 24 Custom Soil Resource Report Down -slope shape: Linear Across -slope shape: Linear Ecological site: R007BY024CO - Sandy Plains, R072 Y111 K - Sandy Plains Hydric soil rating: No Platner Percent of map unit: 2 percent Landform: I nterfluves Landform position (two-dimensional): Summit Landform position (three-dimensional): Interfluve Down -slope shape: Linear Across -slope shape: Linear Ecological site: RQ67BY002CO - Loamy Plains, R072XY100KS - Loamy Tableland Hydric soil rating: No 10 —Ellicott -Ellicott sandy -skeletal complex, 0 to 3 percent slopes, rarely flooded Map Unit Setting National map unit symbol: 2xsth Elevation: 3,950 to 5,960 feet Mean annual precipitation: 13 to 17 inches Mean annual air temperature: 50 to 54 degrees F Frost -free period: 135 to 165 days Farmland classification: Prime farmland if irrigated and the product of I (soil erodibility) x C (climate factor) does not exceed 60 Map Unit Composition Ellicott, rarely flooded, and similar soils: 65 percent Ellicott sandy -skeletal, rarely flooded, and similar soils: 25 percent. Minor components: 10 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Ellicott, Rarely Flooded Setting Landform: Flood plains on intermittent streams, drainageways Down -slope shape: Linear Across -slope shape: Concave Parent material: Noncalcareous, stratified sandy alluvium Typical profile A-0to4inches: sand AC - 4 to 13 inches: sand CI - 13 to 30 inches: sand C2 - 30 to 44 inches: sand C3 - 44 to 80 inches: coarse sand Properties and qualities Slope: 0 to 3 percent Depth to restrictive feature: More than 80 inches 25 Custom Soil Resource Report Drainage class: Excessively drained Runoff class: Negligible Capacity of the most limiting layer to transmit water (Ksat): High to very high (13.00 to 39.96 in/hr) Depth to water table: More than 80 inches Frequency of flooding: Rare Frequency of ponding: None Maximum salinity: Nonsaline to very slightly saline (0.1 to 2.0 mmhos/cm) Available water capacity: Very low (about 2.1 inches) Interpretive groups Land capability classification (irrigated): 4e Land capability classification (nonirrigated): 75 Hydrologic Soil Group: A Ecological site: R067BY031 CO - Sandy Bottomland Hydric soil rating: No Description of Ellicott Sandy -skeletal, Rarely Flooded Setting Landforrn: Channels on intermittent streams, channels on drainageways Down -slope shape: Linear Across -slope shape: Concave, linear Parent material: Noncalcareous, stratified sandy alluvium Typical profile A - 0 to 4 inches: very gravelly coarse sand AC - 4 to 13 inches: very gravelly sand CI - 13 to 30 inches: very gravelly sand C2 - 30 to 44 inches: very gravelly sand C3 - 44 to 80 inches: very gravelly coarse sand Properties and qualities Slope: 0 to 3 percent Depth to restrictive feature: More than 80 inches Drainage class: Excessively drained Runoff class: Negligible Capacity of the most limiting layer to transmit water (sat): High to very high (13.00 to 39.96 in/hr) Depth to water table: More than 80 inches Frequency of flooding: Rare Frequency of ponding: None Maximum salinity: Nonsaline to very slightly saline (0.1 to 2.0 mmhos/crri) Available water capacity: Very low (about 1.2 inches) Interpretive groups Land capability classification (irrigated): 4s Land capability classification (nonirrigated): 8s Hydrologic Soil Group: A Ecological site: R067BY031 Co - Sandy Bottomland Hydric soil rating: No MinorComponents H averson Percent of map unit: 10 percent Landforrn: Terraces Custom Soil Resource Report Landform position (three-dimensional): Tread Down -slope shape: Linear Across -slope shape: Linear Ecological site: R067BY036CO - Overflow Hydric soil rating: No 27 Heldt silty clay, '1 to 3 percent slopes Map Unit Setting National map unit symbol: 3624 Elevation: 4,950 to 5,050 feet Mean annual precipitation: 11 to 17 inches Mean annual air temperature: 46 to 59 degrees F Frost -free period: 110 to 150 days Farmland classification: Prime farmland if irrigated and the product of I (soil erodibility) x C (climate factor) does not exceed ►60 Map Unit Composition ►-leldt and similar soils: 85 percent Minor components: 15 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Heldt Setting Landform: Plains Down -slope shape: Linear Across -slope shape: Linear Parent material: Sediment alluvium derived from shale Typical profile H1 - 0 to 7 inches: siltyclay H2 - 7 to 60 inches: silty clay Properties and qualities Slope: 1 to 3 percent Depth to restrictive feature: More than 80 inches Drainage class: Well drained Runoff class: Low Capacity of the most limiting layer to transmit water (Ksat): Moderately low to moderately high (0.06 to 0.20 in/hr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Calcium carbonate, maximum content: 10 percent Gypsum, maximum content: 1 percent Maximum salinity: Nonsaline to slightly saline (0.0 to 4.0 mmhoslcm) Sodium adsorption ratio, maximum: 10.0 Available water capacity: High (about 9.6 inches) Custom Soil Resource Report Interpretive groups Land capability classification (irrigated): 3e Land capability classification (nonirrigated): 4c Hydrologic Soil Group: C Ecological site: R067BY042CO - Clayey Plains Hydric soil rating: No Minor Components Nunn Percent of map unit: 10 percent Hydric soil rating: No Haverson Percent of map unit: 5 percent Hydric soil rating: No 32 Kim loam, I to 3 percent slopes Map Unit Setting National map unit symbol: 362b Elevation: 4,900 to 5,250 feet Mean annual precipitation: 13 to 17 inches Mean annual air temperature: 46 to 52 degrees F Frost -free period: 125 to 150 days Farmland classification: Prime farmland if irrigated Map Unit Composition Kim and similar soils: 90 percent Minor components: 10 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Kim Setting Landform: Alluvial fans, plains Down -slope shape: Linear Across -slope shape: Linear Parent material: Mixed eolian deposits derived from sedimentary rock Typical profile H1 - 0 to 12 inches: loam H2 - 12 to 40 inches: loam H3 - 40 to 60 inches: fine sandy loam Properties and qualities Slope: 1 to 3 percent Depth to restrictive feature: More than 80 inches Drainage class: Well drained Runoff class: Very low Custom Soil Resource Report Capacity of the most limiting layer to transmit water (Ksat): Moderately high to high (0.57 to 5.95 in/hr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Calcium carbonate, maximum content: 15 percent Available water capacity: Moderate (about 9.0 inches) Interpretive groups Land capability classification (irrigated): 3e Land capability classification (nonirrigated): 4e Hydrologic Soil Group: A Ecological site: R0667BY002CO - Loamy Plains Hydric soil rating: No Minor Components Otero Percent of map unit: 10 percent Hydric soil rating: No 33Kim loam, 3 to 5 percent slopes Map Unit Setting National map unit symbol: 362c Elevation: 4,900 to 5,250 feet Mean annual precipitation: 13 to 17 inches Mean annual air temperature: 46 to 52 degrees F Frost -free period: 125 to 150 days Farmland classification: Farmland of statewide importance Map Unit Composition Kim and similar soils: 90 percent Minor components: 10 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Kim Setting Landform: Alluvial fans, plains Down -slope shape: Linear Across -slope shape: Linear Parent material: Mixed eolian deposits derived from sedimentary rock Typical profile Hi - 0 to 12 inches: loam H2 - 12 to 40 inches: loam H3 - 40 to 60 inches: fine sandy loam Properties and qualities Slope: 3 to 5 percent Custom Soil Resource Report Depth to restrictive feature: More than 80 inches Drainage class: Well drained Runoff class: Very low Capacity of the most limiting layer to transmit water (Ksat): Moderately high to high (0.57 to 5.95 inlhr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Calcium carbonate, maximum content: 15 percent Available water capacity: Moderate (about 9.0 inches) Interpretive groups Land capability classification (irrigated): 3e Land capability classification (nonirrigated): 4e Hydrologic Soil Group: A Ecological site: R067PY002 O - Loamy Plains Hydric soil rating: No Minor Components Otero Percent of map unit: 10 percent Hydric soil rating: No 34 Kim loam, 5 to 9 percent slopes Map Unit Setting National map unit symbol: 362d Elevation: 4,900 to 5,250 feet Mean annual precipitation: 13 to 17 inches Mean annual air temperature: 46 to 52 degrees F Frost -free period: 125 to 150 days Farmland classification: Farmland of local importance Map Unit Composition Kim and similar soils: 90 percent Minor components: 10 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Kim Setting Landform: Alluvial fans, plains Down -slope shape: Linear Across -slope shape: Linear Parent material: Mixed eolian deposits derived from sedimentary rock Typical profile Hi - 0 to 10 inches: loam H2 - 10 to 35 inches: loam H3 - 35 to 60 inches: fine sandy loam 30 Custom Soil Resource Report Properties and qualities Slope: 5 to 9 percent Depth to restrictive feature: More than 80 inches Drainage class: Well drained Runoff class: Low Capacity of the most limiting layer to transmit water (Ksat): Moderately high to high (0.57 to 5.95 in/hr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Calcium carbonate, maximum content: 15 percent Available water capacity: Moderate (about 8.8 inches) Interpretive groups Land capability classification (irrigated): 4e Land capability classification (nonirrigated): 6e Hydrologic Soil Group: A Ecological site: 8067 BY008 O - Loamy Slopes Hydric soil rating: No Minor Components Otero Percent of map unit: 6 Hydric soil rating: No Valent Percent of map unit: 4 Hydric soil rating: No percent percent 35 Loup-Boel loamy sands, 0 to 3 percent slopes Map Unit Setting National map unit symbol: 362f Elevation: 4,550 to 4,750 feet Mean annual precipitation: 11 to 15 inches Mean annual air temperature: 46 to 52 degrees F Frost -free period: 130 to 180 days Farmland classification: Not prime farmland Map Unit Composition Loup and similar soils: 55 percent Boel and similar soils: 35 percent Minor components: 10 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Loup Setting Landform: Swales, drainageways, streams Custom Soil Resource Report Down -slope shape: Linear Across -slope shape: Linear Parent material: Sandy alluvium Typical profile HI - 0 to 16 inches: loamy sand H2 - 16 to 40 inches: loamy sand H3 - 40 to 60 inches: sandy loam properties and qualities Slope: 0 to 3 percent Depth to restrictive feature: More than 80 inches Drainageclass: Poorly drained Runoff class: Very high Capacity of the most limiting layer to transmit water (Ksat): High (2.00 to 6.00 inlhr) Depth to water table: About 0 to 18 inches Frequency of flooding: None Frequency of ponding: None Calcium► carbonate, maximum content: 5 percent. Available water capacity: Low (about 5.2 inches) Interpretive groups Landcapability classification (irrigated): 4w Land capability classification (nonirrigated): 6w Hydrologic Soil Group: ND Ecological site: R067BY029CO - Sandy Meadow Hydric soil rating: Yes Description of Boel Setting Landform: Swales, drainageways, streams Down -slope shape: Linear Across -slope shape: Linear Parent material: Stratified sandy alluvium Typical profile H1 - 0 to 14 inches: loamy sand H2 - 14 to 60 inches: loamy sand properties and qualities Slope: 0 to 3 percent Depth to restrictive feature: More than 80 inches Drainage class: Somewhat poorly drained Runoff class: Very low Capacity of the most limiting layer to transmit water (Ksat): High to very high (5.95 to 19.98 in/hr) Depth to water table: About 18 to 36 inches Frequency of flooding: None Frequency of ponding: None Calcium carbonate, maximum content: 5 percent. Available water capacity: Low (about 4.2 inches) Interpretive groups Land capability classification (irrigated): 4w Land capability classification (nonirrigated): 6w Hydrologic Soil Group: A 32 Custom Soil Resource Report Ecological site: R067BY029CO - Sandy Meadow Hydric soil rating: No Minor Components Osgood Percent of map unit: 5 Hydric soil rating: No Valent ent Percent of map unit: 5 Hydric soil rating: No percent percent 39 Nunn loam, 0 to 1 percent slopes Map Unit Setting National map unit symbol: 2tln 3 Elevation: 3,900 to 6,250 feet Mean annual precipitation: 13 to 16 inches ►Mean annual air temperature: 46 to 54 degrees F Frost -free period: 135 to 160 days Farmland classification: Prime farmland if irrigated Map Unit Composition Nunn and similar soils: 85 percent Minor components: 15 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Nunn Setting Landform: Terraces Landform position (three-dimensional): Tread Down -slope shape: Linear Across -slope shape: Linear Parent material: Pleistocene aged alluvium and/or eolian deposits Typical profile Ap - 0 to 6 inches: loam Btl - 6 to 10 inches: clay loam Bt2 - 10 to 26 inches: Btk - 26 to 31 inches: Bk 1 - 31 to 47 inches: Bk2 - 47 to 80 inches: clay loam clay loam loam loam Properties and qualities Slope: 0 to 1 percent Depth to restrictive feature: More than 80 inches Drainage class: Well drained Runoff class: Medium Custom Soil Resource Report Capacity of the most limiting layer to transmit water (Ksat): Moderately low to moderately high (0.06 to 0.20 inlhr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Calcium carbonate, maximum content: 7 percent Maximum salinity: Nonsaline (0.1 to 1.0 mmhoslcm) sodium adsorption ratio, maximum: 0.5 Available water capacity: High (about 9.2 inches) Interpretive groups Land capability classification (irrigated): 3e Land capability classification (nonirrigated): 4c Hydrologic Soil croup: C Ecological site: R007BY002CO - Loamy Plains Hydric soil rating: No Minor Components Haverson, rarely flooded Percent of map unit: 10 percent Landform: Drainageways Down -slope shape: Linear Across -slope shape: Concave Ecological site: R067BY036CO Overflow Hydric soil rating: No Heldt Percent of map unit: 5 percent Landform: Terraces Landform position (three-dimensional): Tread Down -slope shape: Linear Across -slope shape: Linear Ecological site: R067BY042CO - Clayey Plains Hydric soil rating: No 40 Nunn loam, -1 to 3 percent slopes Map Unit Setting National map unit symbol: 2tln 2 Elevation: 3,900 to 6,250 feet Mean annual precipitation: 13 to 16 inches Mean annual air temperature: 46 to 54 degrees F Frost -free period: 135 to 160 days Farmland classification: Prime farmland if irrigated Map Unit Composition Nunn and similar soils: 85 percent Minor components: 15 percent Estimates are based on observations, descriptions, and transacts of the mapunit. Custom Soil Resource Report Description of Nunn Setting Landform: Terraces Landform position (three-dimensional): Tread Down -slope shape: Linear Across -slope shape: Linear Parent material: Pleistocene aged alluvium and/or eolian deposits Typical profile Ap - 0 to 6 inches: loam Btu - 6 to 10 inches: clay loam Bt2 - 10 to 26 inches: clay loam Btk - 26 to 31 inches: clay loam Bk1 - 31 to 47 inches: loam Bk2 - 47 to 80 inches: loam Properties and qualities Slope: 1 to 3 percent Depth to restrictive feature: More than 80 inches Drainage class: Well drained Runoff class: Medium capacity of the most limiting layer to transmit water (sat): Moderately low to moderately high (0.06 to 0.20 in/hr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Calcium carbonate, maximum content: 7 percent Maximum salinity: Nonsaline (0.1 to 1.0 mmhos/cm) Sodium adsorption ratio, maximum: 0.5 Available water capacity: High (about 9.2 inches) Interpretive groups Land capability classification (irrigated): 3e Land capability classification (nonirrigated): 4e Hydrologic Soil Group: C Ecological site: R067 BY002co - Loamy Plains Hydric soil rating: No Minor Components Wages Percent of map unit: 8 percent Landform: Alluvial fans, terraces Landform position (three-dimensional): Tread Down -slope shape: Linear Across -slope shape: Linear Ecological site: R067BY9o2co - Loamy Plains Hydric soil rating: No Fort collins i ns Percent of map unit: 5 percent Landform: Terraces Landform position (three-dimensional): Tread Down -slope shape: Linear Across -slope shape: Linear 35 Custom Soil Resource Report Ecological site: RQ67BY002CO - Loamy Plains Hydric soil rating: No Haverson, very rarely flooded Percent of map unit: 2 percent Landform: Draina0eways, terraces, alluvial fans Landform position (three-dimensional): Tread Down -slope shape: Linear Across -slope shape: Concave, linear Ecological site: R067BY036CO - Overflow Hydric soil rating: No 41 Nunn clay loam, 0 to 1 percent slopes Map Unit Setting National map unit symbol: 2ting Elevation: 4,100 to 5,700 feet Mean annual precipitation: 14 to 15 inches Mean annual air temperature: 48 to 52 degrees F Frost -free period: 135 to 152 days Farmland classification: Prime farmland if irrigated Map Unit Composition Nunn and similar soils: 85 percent Minor components: 15 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Nunn Setting Landform: Terraces Landform position (three-dimensional): Tread Down -slope shape: Linear Across -slope shape: Linear Parent material: Pleistocene aged alluvium and/or eolian deposits Typical profile Ap - 0 to 6 inches: clay loam Btu' - 6 to 10 inches: clay loam Bt2 - 10 to 26 inches: clay loam Btk - 26 to 31 inches: clay loam Bkl - 31 to 47 inches: loam Bk2 - 47 to 80 inches: loam Properties and qualities Slope: 0 to 1 percent Depth to restrictive feature: More than 80 inches Drainage class: Well drained Runoff class: Medium capacity of the most limiting layer to transmit water (Ksat): Moderately low t0 moderately high (0.06 to 0.20 inlhr) 36 Custom Soil Resource Report Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Calcium carbonate, maximum content: 7 percent Maximum salinity: Nonsaline (0.1 to 1.0 mmhos/cm) Sodium adsorption ratio, maximum: 0.5 Available water capacity: High (about 9.1 inches) Interpretive groups Land capability classification (irrigated): 3e Land capability classification (nonirrigated): 4e Hydrologic Soil Group: C Ecological site: R067BY042CO - Clayey Plains Hydric soil rating: No Minor Components Heldt Percent of map unit: 10 percent Landform: Terraces Landform position (three-dimensional): Tread Down -slope shape: Linear Across -slope shape: Linear Ecological site: R067BY042CO - Clayey Plains Hydric soil rating: No Wages Percent of map unit: 5 percent Landform: Terraces Landform position (three-dimensional): Tread Down -slope shape: Linear Across -slope shape: Linear Ecological site: R067BY002CO Loamy Plains Hydric soil rating: No 42 Nunn clay loam, '1 to 3 percent slopes Map Unit Setting National map unit symbol: 2tlpl Elevation: 3,900 to 5,840 feet Mean annual precipitation: 13 to 17 inches Mean annual air temperature: 50 to 54 degrees F Frost -free period: 135 to 160 days Farmland classification: Prime farmland if irrigated Map Unit Composition Nunn and similar soils: 85 percent Minor components: 15 percent Estimates are based on observations, descriptions, and transects of the mapunit. Custom Soil Resource Report Description of Nunn Setting Landform: Terraces Landform position (three-dimensional): Tread Down -slope shape: Linear Across -slope shape: Linear Parent material: Pleistocene aged alluvium and/or eolian deposits Typical profile Ap - 0 to 9 inches: clay loam Bt - 9 to 13 inches: clay loam Btk - 13 to 25 inches: clay loam Bk1 - 25 to 38 inches: clay loam Bk2 - 38 to 80 inches: clay loam Properties and qualities Slope: 1 to 3 percent Depth to restrictive feature: More than 80 inches Drain a g e class: We l l d ra i n e d Runoff class: Medium Capacity of the most limiting layer to transmit water (Ksat): Moderately low to moderately high (0.06 to 0.20 inlhr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Calcium carbonate, maximum content: 7 percent Maximum salinity: Nonsaline to very slightly saline (0.1 to 2.0 mmhoslcm) Sodium adsorption ratio, maximum: 0.5 Available water capacity: High (about 9.9 inches) Interpretive groups Land capability classification (irrigated): 2e Land capability classification (nonirrigated): 3e Hydrologic Soil Group: C Ecological site: R007BY042CO - Clayey Plains Hydric soil rating: No Minor Components Heldt Percent of map unit: 10 percent Landform: Terraces Landform position (three-dimensional): Tread Down -slope shape: Linear Across -slope shape: Linear Ecological site: R067BY042CO - Clayey Plains Hydric soil rating: No rata nta Percent of map unit: 5 percent Landform: Terraces Landform position (three-dimensional): Tread Down -slope shape: Linear Across -slope shape: Linear Ecological site: RO07BY0O2CO - Loamy Plains 38 Custom Soil Resource Report Hydric soil rating: No 44 Olney loamy sand, '1 to 3 percent slopes Map Unit Setting National map unit symbol: 362r Elevation: 4,600 to 5,200 feet Mean annual precipitation: 11 to 15 inches Mean annual air temperature: 46 to 54 degrees F Frost -free period: 125 to 175 days Farmland classification: Farmland of statewide importance Map Unit Composition Olney and similar soils: 85 percent Minor components: 15 percent Estimates are based on observations, descriptions, and transacts of the mapunit. Description of Olney Setting Landform: Plains Down -slope shape: Linear Across -slope shape: Linear Parent material: Mixed deposit outwash Typical profile Hi - 0 to 10 inches: H2 - 10 to 20 inches. H3 - 20 to 25 inches. H4 - 25 to 60 inches. loamy sand • sandy clay loam ✓ sandy clay loam ✓ fine sandy loam Properties and qualities Slope: 1 to 3 percent Depth to restrictive feature: More than 80 inches Drainage class: Well drained Runoff class: Low Capacity of the most limiting layer to transmit water (Ksat): Moderately high to high (0.60 to 2.00 in/hr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Calcium carbonate, maximum content: 15 percent Maximum salinity: Nonsaline to very slightly saline (0.0 to 2.0 mmhoslcm) Available water capacity: Moderate (about 6.5 inches) Interpretive groups Land capability classification (irrigated): 3e Land capability classification (nonirrigated): 4c Hydrologic Soil Group: B Ecological site: R067BY024CO - Sandy Plains Hydric soil rating: No 39 Custom Soil Resource Report Minor Components Vo n a Percent of map unit: 8 percent Hydric soil rating: No Zigweid Percent of map unit: 7 percent Hydric soil rating: No 47 Olney fine sandy loam, '1 to 3 percent slopes Map Unit Setting National map unit symbol: 362v Elevation: 4,600 to 5,200 feet Mean annual precipitation: 11 to 15 inches Mean annual air temperature: 46 to 54 degrees F Frost -free period: 125 to 175 days Farmland classification: Prime farmland if irrigated and the product of I (soil erodibility) x C (climate factor) does not exceed 60 Map Unit Composition Olney and similar soils: 85 percent Minor components: 15 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Olney Setting Landform: Plains Down -slope shape: Linear Across -slope shape: Linear Parent material: Mixed deposit outwash Typical profile Hi - 0 to 10 inches: fine sandy loam H2 - 10 to 20 inches: sandy clay loam H3 - 20 to 25 inches: sandy clay loam H4 - 25 to 60 inches: fine sandy loam Properties and qualities Slope: 1 to 3 percent Depth to restrictive feature: More than 80 inches Drainage class: Well drained Runoff class: Low Capacity of the most limiting layer to transmit water (Ksat): Moderately high to high (0.57 to 2.00 in/hr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Custom Soil Resource Report Calcium carbonate, maximum content: 15 percent Maximum salinity: Nonsaline to very slightly saline (0.0 to 2.0 mmhoslcm) Available water capacity: Moderate (about 7.0 inches) Interpretive groups Land capability classification (irrigated): 3e Land capability classification (nonirrigated): 4c Hydrologic Soil Group: B Ecological site: Ro 67 BY024CO - Sandy Plains Hydric soil rating: No Minor Components Zigweid Percent of map unit: 10 percent Hydric soil rating: No Vona Percent of map unit: 5 percent Hydric soil rating►: No 48 Olney fine sandy► loam, 3 to 5 percent slopes Map Unit Setting National map unit symbol: 362w Elevation: 4,600 to 5,200 feet Mean annual precipitation: 11 to 15 inches Mean annual air temperature: 46 to 54 degrees F Frost -free period: 125 to 175 days Farmland classification: Farmland of statewide importance Map Unit Composition Olney and similar soils: 85 percent Minor components: 15 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Olney Setting Landform: Plains Down -slope shape: Linear Across -slope shape: Linear Parent material: Mixed deposit outwash Typical profile H9 - 0 to 10 inches: fine sandy loam H2 - 10 to 20 inches: sandy clay loam H3 - 20 to 25 inches: sandy clay loam H4 - 25 to 60 inches: fine sandy loam Properties and qualities Slope: 3 to 5 percent 41 Custom Soil Resource Report Depth to restrictive feature: More than 80 inches Drainage class: Well drained Runoff class: Low Capacity of the most limiting layer to transmit water (Ksat): Moderately high to high (0.57 to 2.00 in/hr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Calcium carbonate, maximum content: 15 percent Maximum salinity: Nonsaline to very slightly saline (0.0 to 2.0 mmhoslcm) Available water capacity: Moderate (about 7.0 inches) Interpretive groups Land capability classification (irrigated): 3e Land capability{ classification (nonirrigated): 4c Hydrologic Soil Group: B Ecological site: R067BY024 0 - Sandy Plains Hydric soil rating: No Minor Components Zigweid Percent of map unit: 9 Hydric soil rating: No Vona Percent of map unit: 6 Hydric soil rating: No percent percent 57 Renohill clay loam, 3 to 9 percent slopes Map Unit Setting National map unit symbol: 3636 Elevation: 4,850 to 5,200 feet Mean annual precipitation: 11 to 16 inches Mean annual air temperature: 46 to 48 degrees F Frost -free period: 100 to 160 days Farmland classification: Not prime farmland Map Unit Composition Renohill and similar soils: 85 percent Minor components: 15 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Renohill Setting Landforrn: Ridges, hills Down -slope shape: Linear Across -slope shape: Linear Parent material: Residuum weathered from shale 42 Custom Soil Resource Report Typical profile H. - 0 to 9 inches: clay loam H2 9 to 32 inches: clay loam H3 - 32 to 36 inches: unweathered bedrock P roperties and qualities Slope: 3 to 9 percent Depth to restrictive feature: 20 to 40 inches to paralithic bedrock Drainage class: Well drained Runoff class: Medium Capacity of the most limiting layer to transmit water (Ksat): Moderately low to moderately high (0.06 to 0.20 in/hr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Calcium carbonate, maximum content: 5 percent Available water capacity: Low (about 5.6 inches) Interpretive groups Land capability classification (irrigated): 4e Land capability classification (nonirrigated): 4e Hydrologic Soil Group: D Ecological site: R067BY042CO - Clayey Plains Hydric soil rating: No Minor Components S hingle Percent of map unit: 10 percent Hydric soil rating: No U lm Percent of map unit: 5 percent Hydric soil rating: No 61 Tassel fine sandy loam, 5 to 20 percent slopes Map Unit Setting National map unit symbol: 363c Elevation: 4,850 to 5,200 feet Mean annual precipitation: 12 to 19 inches Mean annual air temperature: 46 to 52 degrees F Frost -free period: 110 to 165 days Farmland classification: Not prime farmland Map Unit Composition Tassel and similar soils: 85 percent Minor components: 15 percent Estimates are based on observations, descriptions, and transects of the mapunit. Custom Soil Resource Report Description of Tassel Setting Landform: Breaks Down -slope shape: Linear Across -slope shape: Linear Parent material: Residuum weathered from sandstone Typical profile H1 - 0 to -11 inches: fine sandy loam H2 - 11 to 15 inches: very fine sandy loam H3 - 15 to 20 inches: weathered bedrock properties andqualities Slope: 5 to 20 percent Depth to restrictive feature: 10 to 20 inches to paralithic bedrock Drainage class: Well drained Runoff class: Medium Capacity of the most limiting layer to transmit water (Ksat): Moderately low to moderately high (0.06 to 0.20 inlhr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of pending: None Calcium carbonate, maximum content: 10 percent Available water capacity: Very low (about 2.0 inches) Interpretive groups Land capability classification (irrigated): 6e Land capability classification (nonirrigated): 6e Hydrologic Soil Group: D Ecological site: R067BY056O - Sandstone Breaks Hydric soil rating: No Minor Components Otero Percent of map unit: 8 Hydric soil rating: No Terry Percent of map unit: 7 Hydric soil rating: No percent percent 64 Thedalund loam, .I to 3 percent slopes Map Unit Setting National map unit symbol: 363g Elevation: 4,900 to 5,250 feet Mean annual precipitation: 13 to 15 inches Mean annual air temperature: 46 to 48 degrees F Frost -free period: 130 to 160 days 44 Custom Soil Resource Report Farmland classification: Farmland of local importance Map Unit Composition Thedalund and similar soils: 90 percent Minor components: 10 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Thedalund Setting Landform: Plains Down -slope shape: Linear Across -slope shape: Linear Parent material: Residuum weathered from shale Typical profile HI - 0 to 8 inches: loam H2 - 8 to 29 inches: loam H3 - 29 to 33 inches: weathered bedrock Properties and qualities Slope: 1 to 3 percent Depth to restrictive feature: 20 to 40 inches to paralithic bedrock Drainage class: Well drained Runoff class: Low Capacity of the most limiting layer to transmit water (Ksat): Moderately low to high (0.06 to 2.00 in/hr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Calcium carbonate, maximum content: 15 percent Maximum salinity: Nonsaline to moderately saline (0.0 to 8.0 mmhos/cm) Available water capacity: Low (about 4.9 inches) Interpretive groups Land capability classification (irrigated): 4s Land capability classification (nonirrigated): 4e Hydrologic Soil Group: C Ecological site: R06IBY002CO - Loamy Plains Hydric soil rating: No Minor Components Ulm Percent of map unit: 10 percent Hydric soil rating: No 65 Thedalund loam, 3 to 9 percent slopes Map Unit Setting National map unit symbol: 363h Custom Soil Resource Report Elevation: 4,900 to 5,250 feet Mean annual precipitation: 13 to 15 inches Mean annual air temperature: 46 to 48 degrees F Frost -free period: 130 to 160 days Farmland classification: Not prime farmland Map Unit Composition Thedalund and similar soils: 80 percent Minor components: 20 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Thedalund Setting Landform: Plains Down -slope shape: Linear Across -slope shape: Linear Parent material: Residuum weathered from shale Typical profile Hi - 0 to 8 inches: loam H2 - 8 to 29 inches: loam H3 - 29 to 33 inches: weathered bedrock Properties and qualities Slope: 3 to 9 percent Depth to restrictive feature: 20 to 40 inches to paralithic bedrock Drainage class: Well drained Runoff class: Medium Capacity of the most limiting layer to transmit water (sat): Moderately low to high (0.06 to 2.00 inlhr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Calcium carbonate, maximum content: 15 percent Maximum salinity: Nonsaline to moderately saline (0.0 to 8.0 mmhoslcm) Available water capacity: Low (about 4.9 inches) Interpretive groups Land capability classification (irrigated): 4e Land capability classification (nonirrigated): 6e Hydrologic Soil Group: C Ecological site: R0667BY002CO - Loamy Plains Hydric soil rating: No Minor Components to l m Percent of map unit: 7 Hydric soil rating: No Renohill Percent of map unit: 6 Hydric soil rating: No Terry Percent of map unit: 6 Hydric soil rating►: No percent percent percent 46 Custom Soil Resource Report Otero Percent of map unit: 1 percent Hydric soil rating: No 67 UIm clay loam, 3 to 5 percent slopes Map Unit Setting National map unit symbol: 363k Elevation: 5,070 to 5,200 feet Mean annual precipitation: 13 to 15 inches Mean annual air temperature: 46 to 48 degrees F Frost -free period: 105 to 120 days Farmland classification: Farmland of statewide importance Map Unit Composition Ulm and similar soils: 85 percent Minor components: 15 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of UIm Setting Landform: Plains Down -slope shape: Linear Across -slope shape: Linear Parent material: Alluvium and/or eolian deposits derived from shale Typical profile Hel - 0 to 5 inches: clay loam H2 5 to 17 inches: clay H3 - 17 to 60 inches: clay loam Properties and qualities Slope: 3 to 5 percent Depth to restrictive feature: More than 80 inches Drainage class: Well drained Runoff class: Low Capacity of the most limiting layer to transmit water (sat): Moderately low to moderately high (0.06 to 0.20 in/hr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Calcium carbonate, maximum content: 15 percent Maximum salinity: Nonsaline to very slightly saline (0.0 to 2.0 nnmhos/cm) Available water capacity: High (about 10.5 inches) Interpretive groups Land capability classification (irrigated): 4e Land capability classification (nonirrigated): 4e Hydrologic Soil Group: Custom Soil Resource Report Ecological site: R067BY042CO - Clayey Plains Hydric soil rating: No Minor Components Renohill Percent of map unit: 11 percent Hydric soil rating: No Heldt Percent of map unit: 4 percent Hydric soil rating: No 70 Valent sand, 3 to 9 percent slopes Map Unit Setting National map unit symbol: 2tczf Elevation: 3,050 to 5,150 feet Mean annual precipitation: 12 to 18 inches Mean annual air temperature: 48 to 55 degrees F Frost -free period: 130 to 180 days Farmlandclassification: Not prime farmland Map Unit Composition Valent and similar soils: 80 percent Minor components: 20 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Valent Setting Landform: Hills, dunes Landform position (two-dimensional): Backslope, shoulder, footslope, summit Landform position (three-dimensional): Side slope, head slope, nose slope, crest Down -slope shape: Linear, convex Across -slope shape: Linear, convex Parent material: Noncalcareous ealian sands Typical profile A-0to5inches: sand AC - 5 to 12 inches: sand CI - 12 to 30 inches: sand C2 - 30 to 80 inches: sand Properties andqualities Slope: 3 to 9 percent Depth to restrictive feature: More than 80 inches Drainage class: Excessively drained Runoff class: Very low capacity of the most limiting layer to transmit water (Ksat): High to very high (6.00 to 39.96 inlhr) Custom Soil Resource Report Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Calcium carbonate, maximum content: 1 percent Maximum salinity: Nonsaline (0.0 to 1.9 mmhoslcrn) Available water capacity: Very low (about 2.4 inches) Interpretive groups Land capability classification (irrigated): 4e Land capability classification (nonirrigated): 6e Hydrologic Soil Group: A Ecological site: R06IBY015CO - Deep Sand, Ro72XY1 09KB - Rolling Sands Hydric soil rating: No MinorComponents Dailey Percent of map unit: 10 percent Landform: I nterd u n es Landform position (two-dimensional): Footslope, toeslope Landform position (three-dimensional): Base slope Down -slope shape: Linear Across -slope shape: Concave Ecological site: R067BY015CO - Deep Sand, R072XA021 KS - Sands (North) (PE 16-20) Hydric soil rating: No Vona Percent of map unit: 5 percent Landform: Hills Landform position (two-dimensional): Footslope, backslope, shoulder Landform position (three-dimensional): Side slope, head slope, nose slope, base slope Down -slope shape: Linear Across -slope shape: Linear Ecological site: R067BY024CO - Sandy Plains, R072XA022K - Sandy (North) Draft (April 2010) (PE 16-20) Hydric soil rating: No Haxtun n Percent of map unit: 5 percent Landform: I nterd u nes Landform position (two-dimensional): Footslope, toeslope Landform position (three-dimensional): Base slope Down -slope shape: Linear Across -slope shape: Concave Ecological site: R067BY024 0 - Sandy Plains, R072XY111 K - Sandy Plains Hydric soil rating: No Custom Soil Resource Report 72 Vona loamy sand, 0 to 3 percent slopes Map Unit Setting National map unit symbol: 363r Elevation: 4,600 to 5,200 feet Mean annual precipitation: 13 to 15 inches Mean annual air temperature: 48 to 55 degrees F Frost -free period: 130 to 160 days Farmland classification: Farmland of local importance Map Unit Composition Vona and similar soils: 85 percent Minor components: 15 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Vona Setting Landform: Plains, terraces Down -slope shape: Linear Across -slope shape: Linear Parent material: Alluvium and/or eolian deposits Typical profile H1 - 0 to 6 inches: loamy sand H2 - 6 to 28 inches: fine sandy loam H3 - 28 to 60 inches: sandy loam Properties and qualities Slope: 0 to 3 percent Depth to restrictive feature• More than 80 inches Drainage class: Well drained Runoff class: Very low Capacity of the most limiting layer to transmit water (Ksat): High (1.98 to 6.00 i nih r} Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Calcium carbonate, maximum content: 15 percent Maximum salinity: Nonsaline to slightly saline (0.0 to 4.0 mmhos/cm) Available water capacity: Moderate (about 6.5 inches) Interpretive groups Land capability classification (irrigated): 3e Land capability classification (nonirrigated): 4e Hydrologic Soil Group: A Ecological site: R067BY024CO - Sandy Plains Hydric soil rating: No Custom Soil Resource Report Minor Components Remmit Percent of map unit: 10 percent Hydric soil rating: No Valent Percent of map unit: 5 percent Hydric soil rating: No 73 Vona loamy sand, 3 to 5 percent slopes Map Unit Setting National map unit symbol: 2x0j8 8 Elevation: 4,100 to 5,200 feet Mean annual precipitation: 12 to 17 inches Mean annual air temperature: 46 to 52 degrees F Frost -free period: 130 to 155 days Farmland classification: Not prime farmland Map Unit Composition Vona and similar soils: 85 percent Minor components: 15 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Vona Setting Landform: Hills, hillslopes Landforrn position (two-dimensional): Backslope Landform position (three-dimensional): Side slope Down -slope shape: Linear, convex Across -slope shape: Linear, convex Parent material: Eolian sands Typical profile A - 0 to 7 inches: loamy sand Bt1 - 7 to 14 inches: sandy loam Bt2 - 14 to 20 inches: sandy loam Bk - 20 to 45 inches: sandy loam C - 45 to 60 inches: loamy sand Properties and qualities Slope: 3 to 5 percent Depth to restrictive feature: More than 80 inches Drainage class: Well drained Runoff class: Very low Capacity of the most limiting layer to transmit water (Ksat): High (2.00 to 6.00 Depth to water table: More than 80 inches Custom Soil Resource Report Frequency of flooding: None Frequency of ponding: None Calcium carbonate, maximum content: 10 percent Maximum salinity: Nonsaline (0.1 to 1.0 mmhoslcm) Available water capacity: Moderate (about 6.4 inches) Interpretive groups Land capability classification 'irrigated): 3e Land capability classification (nonirrigated): 4s Hydrologic Soil Group: A Ecological site: R067BY015CO - Deep Sand Hydric soil rating: No Minor Components Ascalon Percent of map unit 5 percent Landform: I nterfl uves Landform position (three-dimensional): I me rfl uve Down -slope shape: Linear Across -slope shape: Linear Ecological site: R067BY024CO - Sandy Plains Hydric soil rating: No Manter Percent of map unit: 5 percent Landform: Hills, interfluves rfl uves Landform position (two-dimensional): Backslope Landform position (three-dimensional): Side slope, interfluve Down -slope shape: Convex, linear Across -slope shape: Convex, linear Ecological site: R067BY024CO - Sandy Plains Hydric soil rating: No Olnest Percent of map unit 3 percent Landform: Interfluves, hills Landform position (two-dimensional): Footslope, toeslope Landform position (three-dimensional): Interfluve, base slope Down -slope shape: Linear, concave Across -slope shape: Linear, concave Ecological site: R067BY024CO - Sandy Plains Hydric soil rating: No Valent Percent of map unit: 2 percent Landform: Dunes Landform position (two-dimensional): Summit, shoulder, backslope Landform position (three-dimensional): Crest, side slope, nose slope Down -slope shape: Linear, convex Across -slope shape: Linear, convex Ecological site: R067BY016CO - Deep Sand Hydric soil rating: No 52 Custom Soil Resource Report 76 Vona sandy loam, '1 to 3 percent slopes Map Unit Setting National map unit symbol: 363w Elevation: 4,600 to 5,200 feet Mean annual precipitation: 13 to 15 inches Mean annual air temperature: 48 to 55 degrees F Frost -free period: 130 to 160 days Farmland classification: Farmland of statewide importance Map Unit Composition Vona and similar soils: 85 percent Minor components: 15 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Vona Setting Landform: Terraces, plains Down -slope shape: Linear Across -slope shape: Linear Parent material: Alluvium and/or eolian deposits Typical profile H1 - 0 to 6 inches: sandy loam H2 - 6 to 28 inches: fine sandy loam H3 - 28 to 60 inches: sandy loam Properties and qualities Slope: 1 to 3 percent Depth to restrictive feature• More than 80 inches Drainage class: Well drained Runoff class: Very low Capacity of the most limiting layer to transmit water (Ksat): High (1.98 to 6.00 i nih r} Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Calcium carbonate, maximum content: 15 percent Maximum salinity: Nonsaline to slightly saline (0.0 to 4.0 mmhos/cm) Available water capacity: Moderate (about 6.8 inches) Interpretive groups Land capability classification (irrigated): 3e Land capability classification (nonirrigated): 4e Hydrologic Soil Group: A Ecological site: R067BY024OO - Sandy Plains Hydric soil rating: No Custom Soil Resource Report Minor Components Remmit Percent of map unit: 9 percent Hydric soil rating: No Olney Percent of map unit: 3 percent Hydric soil rating: No Julesburg Percent of map unit: 3 percent Hydric soil rating: No 77 Vona sandy loam, 3 to 5 percent slopes Map Unit Setting National map unit symbol: 363x Elevation: 4,600 to 5,200 feet Mean annual precipitation: 13 to 15 inches Mean annual air temperature: 48 to 55 degrees F Frost -free period: 130 to 160 days Farmland classification: Not prime farmland Map Unit Composition Vona and similar soils: 85 percent Minor components: 15 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Vona Setting Landforr.: Plains Down -slope shape: Linear Across -slope shape: Linear Parent material: Eolian deposits Typical profile HI - 0 to 6 inches: sandy loam H2 - 6 to 28 inches: fine sandy loam H3 - 28 to 60 inches: sandy loam Properties and qualities Slope: 3 to 5 percent Depth to restrictive feature: More than 80 inches Drainage class: Well drained Runoff class: Very low capacity of the ►most limiting layer to transmit water (Ksat): High (1.08 to 6.00 in/hr) Depth to water table: More than 80 inches Frequency of flooding: None 54 Custom Soil Resource Report Frequency of ponding: None Calcium carbonate, maximum content: 15 percent Maximum salinity: Nonsaline to slightly saline (0.0 to 4.0 mmhoslcm) Available water capacity: Moderate (about 6.8 inches) Interpretive groups Land capability classification (irrigated): 3e Land capability classification (nonirrigated): 4e Hydrologic Soil Group: A Ecological site: R►0O7PY024CO - Sandy Plains Hydric soil rating: No Minor Components Remmit Percent of map unit: 7 Hydric soil rating: No Olney Percent of map unit: 5 Hydric soil rating: No Otero Percent of map unit: 3 Hydric soil rating: No percent percent percent 78 Weld loam, 0 to 1 percent slopes Map Unit Setting National map unit symbol: 2x0hy Elevation: 3,600 to 5,750 feet Mean annual precipitation: 12 to 17 inches Mean annual air temperature: 46 to 54 degrees F Frost -free period: 115 to 155 days Farmland classification: Prime farmland if irrigated Map Unit Composition Weld and similar soils: 80 percent Minor components: 20 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Weld Setting Landform: I nterfl eves Landform position (two-dimensional): Summit Landform position (three-dimensional): I me rfl uve Down -slope shape: Linear Across -slope shape: Linear Parent material: Calcareous loess Custom Soil Resource Report Typical profile Ap - 0 to 8 inches: loam Bt1 - 8 to 12 inches: clay 8t2 - 12 to 15 inches: clay loam Btk - 15 to 28 inches: loam Bk - 28 to 60 inches: silt loam C - 60 to 80 inches: silt loam Properties and qualities Slope: 0 to 1 percent Depth to restrictive feature: More than 80 inches Drainage class: Well drained Runoff class: Low Capacity of the most limiting layer to transmit water (Ksat): Moderately low to moderately high (0.06 to 0.20 inlhr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Calcium carbonate, maximum content: 14 percent Maximum salinity: Nonsaline to very slightly saline (0.1 to 2.0 mmhoslcm) Sodium adsorption ratio, maximum: 5.0 Available water capacity: High (about 11.3 inches) Interpretive groups Land capability classification (irrigated): 2c Land capability classification (nonirrigated): 3c Hydrologic Soil Group: C Ecological site: R007BY002CO - Loamy Plains Hydric soil rating: No Minor Components Colby Percent of map unit: 8 percent Landform: Hillslopes Landform position (two-dimensional): Backslope Landform position 'three-dimensional): Side slope Down -slope shape: Convex Across -slope shape: Convex Ecological site: R007BY002O - Loamy Plains Hydric soil rating: No Wiley Percent of map unit: 7 percent Landform: I ntertl uves Landform position (two-dimensional): Shoulder Landform position (three-dimensional): Side slope Down -slope shape: Convex Across -slope shape: Convex Ecological site: RQ67BY002CO - Loamy Plains Hydric soil rating: No Keith Percent of map unit: 3 percent Landform: I nterfl uves Landform position (two-dimensional): Summit 56 Custom Soil Resource Report Landform position (three-dimensional): I me rfl uve Down -slope shape: Linear Across -slope shape: Linear Ecological site: RQ57BY002CO - Loamy Plains Hydric soil rating: No Baca Percent of map unit: 2 percent Landform: I nterfl uves Landform position (two-dimensional): Summit, shoulder Landform position (three-dimensional): I me rfI uve Down -slope shape: Linear, convex Across -slope shape: Linear, convex Ecological site: R057BY002CO - Loamy Plains Hydric soil rating: No 79 Weld loam, to 3 percent slopes Map Unit Setting National map unit symbol: 2x0hw Elevation: 3,600 to 5,750 feet Mean annual precipitation: 12 to 17 inches Mean annual air temperature: 46 to 54 degrees F Frost -free period: 115 to 155 days Farmland classification: Prime farmland if irrigated Map Unit Composition Weld and similar soils: 80 percent Minor components: 20 percent Estimates are based on observations, descriptions, and transacts of the mapunit. Description of Weld Setting Landform: I nterfl eves Landform position (two-dimensional): Summit Landform position (three-dimensional): Interfluve Down -slope shape: Linear Across -slope shape: Linear Parent material: Calcareous loess Typical profile Ap - 0 to 8 inches: loam f - 8 to 12 inches: clay Bt2 - 12 to 15 inches: clay loam Btk - 15 to 28 inches: loam Bk - 28 to 60 inches: silt loam C - 60 to 80 inches: silt loam Properties and qualities Slope: 1 to 3 percent 57 Custom Soil Resource Report Depth to restrictive feature: More than 80 inches Drainage class: Well drained Runoff class: Medium Capacity of the most limiting layer to transmit water (Ksat): Moderately low to moderately high (0.06 to 0.20 inlhr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of pon ding None Calcium carbonate, maximum content: 14 percent Maximum salinity: Nonsaline to very slightly saline (0.1 to 2.0 mmhoslcm) Sodium adsorption ratio, maximum: 5.0 Available water capacity: High (about 11.3 inches) Interpretive groups Land capability classification (irrigated): 2e Land capability classification (nonirrigated): 3c Hydrologic Soil Group: C Ecological site: R007'BY002CO - Loamy Plains Hydric soil rating: No Minor Components Adena Percent of map unit 8 percent Landform: I nterfl eves Landform position (two-dimensional): Shoulder Landform position (three-dimensional), Interfluve Down -slope shape: Convex ,Across -slope shape: Convex Ecological site: R067BY002CO - Loamy Plains Hydric soil rating: No Colby Percent of map unit 7 percent Landform: Hillslopes Landform position (two-dimensional): Backslope Landform position (three-dimensional): Side slope Down -slope shape: Convex Across -slope shape: Convex Ecological site: R067BY002CO - Loamy Plains Hydric soil rating: No Keith Percent of map unit: 3 percent Landform: I nterfl uves Landform position (two-dimensional): Summit Landform position (three-dimensional): Interfluve Down -slope shape: Linear Across -slope shape: Linear Ecological site: R0G7B'Y002CO Loamy Plains Hydric soil rating: No Baca Percent of map unit 2 percent Landform: I nterfl uves Landform position (two-dimensional): Shoulder, summit Landform position (three-dimensional): Interfluve 58 Custom Soil Resource Report Down -slope shape: Linear, convex Across -slope shape: Linear, convex Ecological site: R057BY002CO - Loamy Plains Hydric soil rating: No 81 Wiley -Colby complex, 0 to 1 percent slopes Map Unit Setting National map unit symbol: 3642 Elevation: 4,850 to 5,000 feet Mean annual precipitation: 12 to 16 inches Mean annual air temperature: 48 to 54 degrees F Frost -free period: 135 to 170 days Farmland classification: Prime farmland if irrigated Map Unit Composition Wiley and similar soils: 60 percent Colby and similar soils: 30 percent Minor components: 10 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Wiley Setting Landform: Plains Down -slope shape: Linear Across -slope shape: Linear Parent material: Calcareous eolian deposits Typical profile Hi - 0 to 11 inches: silt loam H2 - 11 to 60 inches: silty clay loam H3 - 60 to 64 inches: silty clay loam Properties and qualities Slope: 0 to 1 percent Depth to restrictive feature: More than 80 inches Drainage class: Well drained Runoff class: Low Capacity of the most limiting layer to transmit ►water (ksat): Moderately high to high (0.60 to 2.00 in/hr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Calcium carbonate, maximum content: 15 percent Maximum salinity: Nonsaline to very slightly saline (0.0 to 2.0 ifrmmhoslcm) Available water capacity: High (about 11.7 inches) Interpretive groups Land capability classification (irrigated): 1 Land capability classification (nonirrigated): 4e 59 Custom Soil Resource Report Hydrologic Soil Group: B Ecological site: R067'3)/002OO - Loamy Plains Hydric soil rating: No Description of Colby Setting Landform: Plains Down -slope shape: Linear Across -slope shape: Linear Parent material: Calcareous eolian deposits Typical profile HI - 0 to 7 inches: loam H2 - 7 to 60 inches: silt loam Properties and qualities Slope: 0 to 1 percent Depth to restrictive feature: More than 80 inches Drainage class: Well drained Runoff class: Low Capacity of the most limiting layer to transmit water (Ksat): Moderately high to high (0.57 to 2.00 inlhr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Calcium carbonate, maximum content: 15 percent Available water capacity: High (about 10.6 inches) Interpretive groups Land capability classification (irrigated): 3e Land capability classification (nonirrigated): 4c Hydrologic Soil Group: B Ecological site: R057BY002CO - Loamy Plains Hydric soil rating: No Minor Components Keith Percent of map unit: 6 Hydric soil rating: No Weld Percent of map unit: 4 Hydric soil rating: No percent percent 82 Wiley -Colby complex, al to 3 percent slopes Map Unit Setting National map unit symbol: 3643 Elevation: 4,850 to 5,000 feet 60 Custom Soil Resource Report Mean annual precipitation: 12 to 16 inches Mean annual air temperature: 48 to 54 degrees F Frost -free period: 135 to 170 days Farmland classification: Prime farmland if irrigated Map Unit Composition Wiley and similar soils: 60 percent Colby and similar soils: 30 percent Minor components: 10 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Wiley Setting Landform: Plains Down -slope shape: Linear Across -slope shape: Linear Parent material: Calcareous eolian deposits Typical profile Hi - 0 to 11 inches: silt loam H2 - 11 to 60 inches: silty clay loam H3 - 60 to 64 inches: silty clay loam Properties and qualities Slope: 1 to 3 percent Depth to restrictive feature: More than 80 inches Drainage class: Well drained Runoff class: Low Capacity of the most limiting layer to transmit water (sat): Moderately high to high (0.60 to 2.00 inlhr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Calcium carbonate, maximum content: 15 percent Maximum salinity: Nonsaline to very slightly saline (0.0 to 2.0 mmhoslcm) Available water capacity: High (about 11.7 inches) Interpretive groups Land capability classification (irrigated): 2e Land capability classification (nonirrigated): 4e Hydrologic Soil Group: B Ecological site: R067BY002CO - Loamy Plains Hydric soil rating: No Description of Colby Setting Landform: Plains Down -slope shape: Linear Across -slope shape: Linear Parent material: Calcareous eolian deposits Typical profile Hi - 0 to 7 inches: loam H2 - 7 to 60 inches: silt loam Custom Soil Resource Report Properties and qualities Slope: 1 to 3 percent Depth to restrictive feature: More than 80 inches Drainage class: We l l d ra i n e d Runoff class: Low Capacity of the most limiting layer to transmit water (Ksat): Moderately high to high (0.57 to 2.00 in/hr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Calcium carbonate, maximum content: 15 percent Available water capacity: High (about 10.6 inches) Interpretive groups Land capability classification (irrigated): 3e Land capability classification (nonirrigated): 4e Hydrologic Soil Group: B Ecological site: 8067 BY002 O - Loamy Plains Hydric soil rating: No Minor Components Weld Percent of map unit: 4 percent Hydric soil rating: No Heldt Percent of map unit: 4 Hydric soil rating: No Keith Percent of map unit: 2 Hydric soil rating: No percent percent 83 Wiley -Colby complex, 3 to 5 percent slopes Map Unit Setting National map unit symbol: 3644 Elevation: 4,850 to 5,000 feet ►Mean annual precipitation: 12 to 16 inches Mean annual air temperature: 48 to 54 degrees F Frost -free period: 135 to 170 days Farmland classification: Farmland of statewide importance Map Unit Composition Wiley and similar soils: 55 percent Colby and similar soils: 30 percent Minor components: 15 percent Estimates are based on observations, descriptions, and transects of the mapunit. Custom Soil Resource Report Description of Wiley Setting Landform: Plains Down -slope shape: Linear Across -slope shape: Linear Parent material: Calcareous eolian deposits Typical profile H1 - 0 to 11 inches: silt loam H2 - 11 to 60 inches: silty clay loam H3 - 60 to 64 inches: silty clay loam Properties and qualities Slope: 3 to 5 percent Depth to restrictive feature: More than 80 inches Drainage class: Well drained Runoff class: Low Capacity of the most limiting layer to transmit water (Ksat): Moderately high to high (0.60 to 2.00 in/hr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Calcium carbonate, maximum content: 15 percent Maximum salinity: Nonsaline to very slightly saline (0.0 to 2.0 mmhoslcrn) Available water capacity: High (about 11.7 inches) Interpretive groups Land capability classification (irrigated): 3e Land capability classification (nonirrigated): 4e Hydrologic Soil Group. B Ecological site: R067BY002CO - Loamy Plains Hydric soil rating: No Description of Colby Setting Landform: Plains Down -slope shape: Linear Across -slope shape: Linear Parent material: Calcareous eolian deposits Typical profile Hi - 0 to 7 inches: loam H2 - 7 to 60 inches: silt loam Properties and qualities Slope: 3 to 5 percent Depth to restrictive feature: More than 80 inches Drainage class: Well drained Runoff class: Low Capacity of the most limiting layer to transmit water (Ksat): Moderately high to high (0.57 to 2.00 inlhr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Calcium carbonate, ►maximum content: 15 percent 63 Custom Soil Resource Report Available water capacity: High (about 10.6 inches) Interpretive groups Land capability classification (irrigated): 3e Land capability classification (nonirrigated): 4e Hydrologic Soil Group: B Ecological site: R067BY002CO - Loamy Plains Hydric soil rating: No Minor Components Heldt Percent of map unit: 9 Hydric soil rating: No Weld Percent of map unit: 6 Hydric soil rating: No 85 Water percent percent Map Unit Composition Water: 95 percent Minor components: 5 percent Estimates are based on observations, descriptions, and transects of the mapunit. Minor Components Aquolls Percent of map unit: 5 percent Landform: Marshes Hydric soil rating: Yes Soil Information for All Uses Suitabilities and Limitations for Use The Suitabilities and Limitations for Use section includes various soil interpretations displayed as thematic maps with a summary table for the soil map units in the selected area of interest. A single value or rating for each map unit is generated by aggregating the interpretive ratings of individual map unit components. This aggregation process is defined for each interpretation. Building Site Development Building site development interpretations are designed to be used as tools for evaluating soil suitability and identifying soil limitations for various construction purposes. As part of the interpretation process, the rating applies to each soil in its described condition and does not consider present land use. Example interpretations can include corrosion of concrete and steel, shallow excavations, dwellings with and without basements, small commercial buildings, local roads and streets, and lawns and landscaping. Shallow Excavations (Segments Band C - South) Shallow excavations are trenches or holes dug to a maximum depth of 5 or 6 feet for graves, utility lines, open ditches, or other purposes. The ratings are based on the soil properties that influence the ease of digging and the resistance to sloughing. Depth to bedrock or a cemented pan, hardness of bedrock or a cemented pan, the amount of large stones, and dense layers influence the ease of digging, filling, and compacting. Depth to the seasonal high water table, flooding, and ponding may restrict the period when excavations can be made. Slope influences the ease of using machinery. Soil texture, depth to the water table, and linear extensibility (shrink -swell potential) influence the resistance to sloughing. The ratings are both verbal and numerical. Rating class terms indicate the extent to which the soils are limited by all of the soil features that affect the specified use. "Not limited" indicates that the soil has features that are very favorable for the specified use. Good performance and very low maintenance can be expected. "Somewhat limited" indicates that the soil has features that are moderately favorable for the specified use. The limitations can be overcome or minimized by special planning, design, or installation. Fair performance and moderate 65 Custom Soil Resource Report maintenance can be expected. "Very limited" indicates that the soil has one or more features that are unfavorable for the specified use. The limitations generally cannot be overcome without major soil reclamation, special design, or expensive installation procedures. Poor performance and high maintenance can be expected. Numerical ratings indicate the severity of individual limitations. The ratings are shown as decimal fractions ranging from 0.01 to 1.00. They indicate gradations between the point at which a soil feature has the greatest negative impact on the use (1.00) and the point at which the soil feature is not a limitation (0.00). The map unit components listed for each map unit in the accompanying Summary by Map Unit table in Web Soil Survey or the Aggregation Report in Soil Data Viewer are determined by the aggregation method chosen. An aggregated rating class is shown for each map unit. The components listed for each map unit are only those that have the same rating class as listed for the map unit. The percent composition of each component in a particular map unit is presented to help the user better understand the percentage of each map unit that has the rating presented. Other components with different ratings may be present in each map unit. The ratings for all components, regardless of the map unit aggregated rating, can be viewed by generating the equivalent report from the Soil Reports tab in Web Soil Survey or from the Soil Data Mart site. Onsite investigation may be needed to validate these interpretations and to confirm the identity of the soil on a given site. 66 Custom Soil Resource Report Map —Shallow Excavations (Segments B and C - South) 503001 507000 515000 51'-+0O] - t 105° 3' 30' W 4oa 2710- N H _ r 39C Me in' I I i 1 5032O) Maps $ Ie: 1:114,000 if printed on B portrait (11" x 17) mat Meters 511000 a0° 201G'n o 1500 3030 O 5330 ICOX WOO 9X0 eFed: 20300 3ocoo Map projection: vleb Merpitnl- Came- coordinates: " G584 Edgetts: LIEN Zone 13N'WGSE34 67 Custom Soil Resource Report MAP LEGEND Area of Interest (AQI) Background Area of Interest (AOI) Aerial Photography Soils Soil Rating Polygons Very limited 0 Somewhat limited 0 Not limited 0 Not rated or not available Soil Rating Lines ,,,.+ Very limited PO - Somewhat limited Not limited r Not rated or not available Soil Rating Points • a 0 Very limited Somewhat limited Not limited O Not rated or not available Water Features Streams and Canals Transportation 11-114 Rails retool Interstate Highways US Routes Major Roads Local Roads MAP INFORMATION The soil surveys that comprise your AOI were mapped at scales ranging from 1:20,000 to 1:24,000. Please rely on the bar scale on each map sheet for map measurements. Source of Map: Natural Resources Conservation Service Web Soil Survey URL: Coordinate System: Web Mercator (EPSG:3857) Maps from the Web Soil Survey are based on the Web Mercator projection, which preserves direction and shape but distorts distance and area. A projection that preserves area, such as the Albers equal-area conic projection, should be used if more accurate calculations of distance or area are required. This product is generated from the USDA-NRCS certified data as of the version date(s) listed below. Soil Survey Area: Adams County Area, Parts of Adams and Denver Counties, Colorado Survey Area Data: Version 17, Jun 4, 2020 Soil Survey Area: Weld County, Colorado, Southern Part Survey Area Data: Version 19, Jun 5, 2020 Your area of interest (AOl) includes more than one soil survey area. These survey areas may have been mapped at different scales, with a different land use in mind, at different times, or at different levels of detail. This may result in map unit symbols, soil properties, and interpretations that do not completely agree across soil survey area boundaries. Soil map units are labeled (as space allows) for map scales 1:50,000 or larger. Date(s) aerial images were photographed: Jul 19, 2018 Dec 4, 2018 The orthophoto or other base map on which the soil lines were compiled and digitized probably differs from the background Custom Soil Resource Report MAP LEGEND MAP INFORMATION imagery displayed on these maps. As a result, some minor shifting of map unit boundaries may be evident. Custom Soil Resource Report Tables Shallow Excavations (Segments B and C - South) Map unit symbol Map unit name Rating Component name (percent) Rating reasons (numeric values) Acres in AOI Percent of AOI UID Ulm loam, 3 to 5 percent slopes Somewhat limited Ulm (80%) Dusty (0.45) 0.0 0.0% Too clayey (0.13) Unstable excavation walls (0.01) Subtotals for Soil Survey Area 0.0 0.0% Totals for Area of Interest 266.4 100.0% Map unit symbol Map unit name Rating Component name (percent) Rating reasons (numeric values) Acres in AOI Percent of AOI Altvan loam, 0 to 1 percent slopes Somewhat limited Altvan (90%) Dusty (0.28) 1.9 0.7% Unstable excavation walls (0.01) 3 Aquolls and Aquents, gravelly substratum Very limited Aquolls (55%) Depth saturated (1.00) to zone 8.1 3.1% Flooding (0.80) Dusty (0.31) Unstable excavation walls (0.01) 4 Aquolls and Aquepts, flooded Very limited Aquolls (55%) Depth to saturated zone (1.00) 2.1 0.8% Flooding (0.80) Dusty (0.09) Unstable excavation walls (0.01) Aquepts, flooded (25%) Depth saturated (1.00) to zone Flooding (0.80) Dusty (0.09) Unstable excavation walls (0.01) 6 Ascalon loam, sandy 3 to 5 percent slopes Somewhat limited Ascalon (80%) Dusty (0.10) 0.7 0.3% Unstable excavation walls (0.01) 70 Custom Soil Resource Report Map unit symbol Map unit name Rating Component Rating reasons name (percent) (numeric values) Acres in AOI Percent of AOI Stoneham (10%) Dusty (0.27) Unstable excavation walls (0.01) Vona (8%) Dusty (0.03) Unstable excavation walls (0.01) Platner (2%) Dusty (0.36) Unstable excavation walls (0.01) Ellicott -Ellicott sandy -skeletal complex, 0 to 3 percent slopes, rarely flooded Very limited Ellicott, rarely Unstable flooded (65%©) excavation walls (1.00) Ellicott sandy- Unstable skeletal, rarely flooded (25%) excavation walls (1.00) 0.4 0.1% Heldt silty clay, 1 to 3 percent slopes Somewhat limited Heldt (85%) Unstable excavation walls (0.51) Dusty (0.50) Too clayey (0.28) 5.6 2.1 % Kim loam, 1 to 3 percent slopes Somewhat limited Kim (90%) Dusty (0.27) Unstable excavation walls (0.01) 0.7 0.3% Kim loam, 3 to 5 percent slopes Somewhat limited Kim (90%) Dusty (0.27) Unstable excavation walls (0.01) 3.6 1A% Kim loam, 5 to 9 percent slopes Somewhat limited Kim (90%) Dusty (0.27) Unstable excavation walls (0.01) 9.8 3.7% Loup-Boel loamy sands, 0 to 3 percent slopes Very limited Loup (55%) Depth to saturated zone (1.00) Unstable excavation walls (0.01) Boel (35%) Depth to saturated zone (1.00) Unstable excavation walls (0.68) 1.0 0.4% 71 Custom Soil Resource Report Map unit symbol Map unit name Rating Component name (percent) Rating reasons (numeric values) Acres in AOI Percent of AOI Nunn loam, 0 to 1 percent slopes Somewhat limited Nunn (85%) Dusty (0.33) Unstable excavation walls (0.01) Haverson, rarely flooded (10%) Dusty (0.28) Unstable excavation walls (0.01) Heldt (5%) Unstable excavation walls (0.55) Dusty (0.48) Too clayey (0.13) 3.5 1.3% Nunn loam, 1 to 3 percent slopes Somewhat limited Nunn (85%) Dusty (0.33) Unstable excavation walls (0.01) Wages (8%) Dusty (0.26) Unstable excavation walls (0.01) Fort Collins (5%) Dusty (0.26) Unstable excavation walls (0.01) Haverson, very rarely flooded (2%) Dusty (0.28) Unstable excavation walls (0.01) 2.8 Nunn clay loam, 0 to 1 percent slopes Somewhat limited Nunn (85%) Dusty (0.34) Unstable excavation walls (0.01) Heldt (10%) Unstable excavation walls (0.55) Dusty (0.49) Too clayey (0.13) Wages (5%) Dusty (0.27) Unstable excavation walls (0.01) 8.2 3.1% Nunn clay loam, Somewhat 1 to 3 percent limited slopes Nunn (85%) Dusty (0.33) Unstable excavation walls (0.01) Heldt (10%) Dusty (0.42) 26.9 10.1% 72 Custom Soil Resource Report Map unit symbol Map unit name Rating Component name (percent) Rating reasons (numeric values) Acres in AOI Percent of AOI Unstable excavation walls (0.25) Too clayey (0.13) Satanta (5%) Dusty (0.31) Unstable excavation walls (0.01) Olney loamy sand, 1 to 3 percent slopes Somewhat limited Olney (85%) Unstable excavation walls (0.01) Dusty (0.00) 2.8 Olney fine sandy loam, 1 to 3 percent slopes Somewhat limited Olney (85%) Dusty (0.09) Unstable excavation walls (0.01) 20.8 7.8% Olney fine sandy loam, 3 to 5 percent slopes Somewhat limited Olney (85%) Dusty (0.09) Unstable excavation walls (0.01) 3.0 Renohill clay loam, 3 to 9 percent slopes Somewhat limited Renohill (85%) Unstable excavation walls (0.51) Dusty (0.39) Depth to soft bedrock (0.29) 1.9 0.7% Tassel fine sandy loam, 5 to 20 percent slopes Very limited Tassel (85%) Depth to soft bedrock (1.00) Slope (0.84) Dusty (0.05) Unstable excavation walls (0.01) 5.6 2.1% Thedalund loam, 1 to 3 percent slopes Somewhat limited Thedalund (00%) Depth to soft bedrock (0.54) Dusty (0.28) Unstable excavation walls (0.01) 0.5 0.2% Thedalund loam, 3 to 9 percent slopes Somewhat limited Thedalund (80%) Depth to soft bedrock (0.54) Dusty (0.28) Unstable excavation walls (0.01) 0.8 0.3% Ulm clay loam, 3 Somewhat to 5 percent limited slopes Ulm (85%) Unstable excavation walls (0.51) 1.9 0.7% 73 Custom Soil Resource Report Map unit symbol Map unit name Rating Component Rating reasons name (percent) (numeric values) Acres in AOI Percent of AOI Dusty (0.39) Valent sand, 3 to 9 percent slopes Very limited Valent (80%) Unstable excavation walls (1.00) 3.7 1.4% Vona loamy sand, 0 to 3 percent slopes Somewhat limited Vona (85%) Unstable excavation walls (0.01) 30.4 11.4% Vona loamy sand, 3 to 5 percent slopes Somewhat limited Vona (85%) Unstable excavation walls (0.01) Ascalon (5%) Dusty (0.09) Unstable excavation walls (0.01) Manter (5%) Dusty (0.02) Unstable excavation walls (0.01) Olnest (3%) Dusty (0.08) Unstable excavation walls (0.01) 9.6 3.6% Vona sandy loam, 1 to 3 percent slopes Somewhat limited Vona (85%) Dusty (0.03) Unstable excavation walls (0.01) 1.6 0.6% Vona sandy loam, 3 to 6 percent slopes Somewhat limited Vona (85%) Dusty (0.03) Unstable excavation walls (0.01) 3.5 1.3% Weld loam, 0 to 1 percent slopes Somewhat limited Weld (80%) Dusty (0.33) Unstable excavation walls (0.01) Colby (8%) Dusty (0.48) Unstable excavation walls (0.01) Wiley (7%) Dusty (0.48) Unstable excavation walls (0.01) Keith (3%) Dusty (0.36) Unstable excavation walls (0.01) Baca (2%) Dusty (0.35) 2.6 1.0% 74 Custom Soil Resource Report Map unit symbol Map unit name Rating Component name (percent) Rating reasons (numeric values) Acres in AOI Percent of AOI 79 Weld loam, 1 to 3 percent slopes Somewhat limited Weld (80%) Unstable excavation walls (0.01) Dusty (0.33) Unstable excavation walls (0.01) Adena (8%) Dusty (0.30) Unstable excavation walls (0.01) Colby (7%) Dusty (0.48) Unstable excavation walls (0.01) Keith (3%) Dusty (0.36) Unstable excavation walls (0.01) Baca (2%) Dusty (0.35) Unstable excavation walls (0.01) 22.3 8.4% 81 Wiley -Colby complex, 0 to 1 percent slopes Somewhat limited Wiley (60%) Dusty (0.50) Unstable excavation walls (0.01) Colby (30%) Dusty (0.49) Unstable excavation walls (0.01) 2.6 1.0% 82 Wiley -Colby complex, 1 to 3 percent slopes Somewhat limited Wiley (60%) Dusty (0.50) Unstable excavation walls (0.01) Colby (30%) Dusty (0.49) Unstable excavation walls (0.01) 60.2 22.6% 83 Wiley -Colby complex, 3 to 5 percent slopes Somewhat limited Wiley (55%) Dusty (0.50) Unstable excavation walls (0.01) Colby (30%) Dusty (0.49) Unstable excavation walls (0.01) 17.0 6.4°`/0 85 Water Not rated Water (95%) 0.2 0.1% 75 Custom Soil Resource Report Map unit symbol Map unit name Rating Component name (percent) Rating reasons (numeric values) Acres in AOI Percent of AOI Aqualls (5%) Subtotals for Soil Survey Area 266.4 100.0% Totals for Area of Interest 266.4 100.0% Rating Acres in AOI Percent of AOI Somewhat limited 245.3 92.1 % Very limited 20.9 7.8% Null or Not Rated 0.2 0.1% Totals for Area of Interest 266.4 100.0% Rating Options Shallow Excavations (Segments B and C - South) Aggregation Method. Dominant Condition Component Percent Cutoff.• None Specified Tie -break Rule: Higher 76 Custom Soil Resource Report Soil Reports The Soil Reports section includes various formatted tabular and narrative reports (tables) containing data for each selected soil map unit and each component of each unit. No aggregation of data has occurred as is done in reports in the Soil Properties and Qualities and Suitabilities and Limitations sections. The reports contain soil interpretive information as well as basic soil properties and qualities. A description of each report (table) is included. Building Site Development This folder contains a collection of tabular reports that present soil interpretations related to building site development. The reports (tables) include all selected map units and components for each map unit, limiting features and interpretive ratings. Building site development interpretations are designed to be used as tools for evaluating soil suitability and identifying soil limitations for various construction purposes. As part of the interpretation process, the rating applies to each soil in its described condition and does not consider present land use. Example interpretations can include corrosion of concrete and steel, shallow excavations, dwellings with and without basements, small commercial buildings, local roads and streets, and lawns and landscaping. Roads and Streets, Shallow Excavations, and Lawns and Landscaping (Segments Band C - South) Soil properties influence the development of building sites, including the selection of the site, the design of the structure, construction, performance after construction, and maintenance. This table shows the degree and kind of soil limitations that affect local roads and streets, shallow excavations, and lawns and landscaping. The ratings in the table are both verbal and numerical. Rating class terms indicate the extent to which the soils are limited by all of the soil features that affect building site development. Not limited indicates that the soil has features that are very favorable for the specified use. Good performance and very low maintenance can be expected. Somewhat limited indicates that the soil has features that are moderately favorable for the specified use. The limitations can be overcome or minimized by special planning, design, or installation. Fair performance and moderate maintenance can be expected. Very limited indicates that the soil has one or more features that are unfavorable for the specified use. The limitations generally cannot be overcome without major soil reclamation, special design, or expensive installation procedures. Poor performance and high maintenance can be expected. Numerical ratings in the table indicate the severity of individual limitations. The ratings are shown as decimal fractions ranging from 0.01 to 1.00. They indicate gradations between the point at which a soil feature has the greatest negative impact on the use (1.00) and the point at which the soil feature is not a limitation (0.00). 77 Custom Soil Resource Report Local roads and streets have an all-weather surface and carry automobile and light truck traffic all year. They have a subgrade of cut or fill soil material; a base of gravel, crushed rock, or soil material stabilized by lime or cement; and a surface of flexible material (asphalt), rigid material (concrete), or gravel with a binder. The ratings are based on the soil properties that affect the ease of excavation and grading and the traffic -supporting capacity. The properties that affect the ease of excavation and grading are depth to bedrock or a cemented pan, hardness of bedrock or a cemented pan, depth to a water table, ponding, flooding, the amount of large stones, and slope. The properties that affect the traffic -supporting capacity are soil strength (as inferred from the AASHTO group index number), subsidence, linear extensibility (shrink -swell potential), the potential for frost action, depth to a water table, and ponding. Shallow excavations are trenches or holes dug to a maximum depth of 5 or 6 feet for graves, utility lines, open ditches, or other purposes. The ratings are based on the soil properties that influence the ease of digging and the resistance to sloughing. Depth to bedrock or a cemented pan, hardness of bedrock or a cemented pan, the amount of large stones, and dense layers influence the ease of digging, filling, and compacting. Depth to the seasonal high water table, flooding, and ponding may restrict the period when excavations can be made. Slope influences the ease of using machinery. Soil texture, depth to the water table, and linear extensibility (shrink -swell potential) influence the resistance to sloughing. Lawns and landscaping require soils on which turf and ornamental trees and shrubs can be established and maintained. Irrigation is not considered in the ratings. The ratings are based on the soil properties that affect plant growth and trafficability after vegetation is established. The properties that affect plant growth are reaction; depth to a water table; ponding; depth to bedrock or a cemented pan; the available water capacity in the upper 40 inches; the content of salts, sodium, or calcium carbonate; and sulfidic materials. The properties that affect trafficability are flooding, depth to a water table, ponding, slope, stoniness, and the amount of sand, clay, or organic matter in the surface layer. Information in this table is intended for land use planning, for evaluating land use alternatives, and for planning site investigations prior to design and construction. The information, however, has limitations. For example, estimates and other data generally apply only to that part of the soil between the surface and a depth of 5 to 7 feet. Because of the map scale, small areas of different soils may be included within the mapped areas of a specific soil. The information is not site specific and does not eliminate the need for onsite investigation of the soils or for testing and analysis by personnel experienced in the design and construction of engineering works. Government ordinances and regulations that restrict certain land uses or impose specific design criteria were not considered in preparing the information in this table. Local ordinances and regulations should be considered in planning, in site selection, and in design. Report Roads and Streets, Shallow Excavations, and Lawns and Landscaping (Segments B and C - South) [onsite investigation may be needed to validate the interpretations in this table and to confirm the identity of the soil on a given site. The numbers in the value columns range from 0.01 to 1.00. The larger the value, the greater the potential limitation. 78 Custom Soil Resource Report The table shows only the top five limitations for any given soil. The soil may have additional limitations] Roads and Streets, Shallow Excavations, and Lawns and Counties, Landscaping -Adams County Area, Parts of Adams and Denver Colorado Map symbol and soil name Pct. of map unit Lawns and landscaping Local roads and streets Shallow excavations Rating class and limiting features Value Rating class limiting and features Value Rating limiting class and features Value UIC—Ulm loam, 3 to 5 percent slopes Ulm 80 Somewhat limited Very limited Somewhat limited Dusty 0.45 Low strength 1.00 Dusty 0.45 Shrink -swell 0.96 Tooclayey 0.13 Unstable excavation walls 0.01 Roads and Streets, Shallow Excavations, and Lawns and Landscaping -Weld County, Colorado, Southern Part Map symbol and soil name Pd. map unit of Lawns and landscaping Local roads and streets Shallow excavations Rating class and limiting features Value Rating class limiting and features Value Rating class and limiting features Value 1—Altvan loam, 0 to 1 percent slopes Altvan 90 Somewhat limited Somewhat limited Somewhat limited Dusty 0.28 Frost action 0.50 Dusty 0.28 Unstable excavation walls 0.01 3 Aquolls and gravelly Aquents, substratum Aquolls 55 Very limited Very limited Very limited Flooding 1.00 Flooding 1.00 Depth to saturated zone 1.00 Dusty 0.31 Frost action 0.50 Flooding 0.80 Depth to saturated zone 0.04 Depth to saturated zone 0.04 Dusty 0.31 Unstable excavation walls 0.01 Aquents, gravelly substratum 30 Not rated Very limited Not rated Frost action 1.00 Flooding 1.00 Depth to saturated zone 0.94 79 Custom Soil Resource Report Roads and Streets, Shallow Excavations, and Lawns and Landscaping -Weld County, Colorado, Southern Part Map symbol and soil name Pct. map unit of Lawns and landscaping Local roads and streets Shallow excavations Rating limiting class and features Value Rating class limiting and features Value Rating class and limiting features Value 4—Aquolls and flooded Aquepts, Aquolls 55 Not rated Very limited Very limited Frost action 1.00 Depth to saturated zone 1.00 Flooding 1.00 Flooding 0.80 Shrink -swell 0.50 Dusty 0.09 Depth to saturated zone 0.48 Unstable excavation walls 0.01 Aquepts, flooded 25 Not rated Very limited Very limited Frost action 1.00 Depth to saturated zone 1.00 Flooding 1.00 Flooding 0.80 Shrink -swell 0.50 Dusty 0.09 Depth to saturated zone 0.48 Unstable walls excavation 0.01 6 —Ascalon sandy loam, 3 to 5 percent slopes Ascalon 80 Somewhat limited Somewhat limited Somewhat limited Dusty 0.10 Frost action 0.50 Dusty 0.10 Unstable excavation walls 0.01 10 Ellicott -skeletal flooded -Ellicott 0 to slopes, 3 sandy complex, percent rarely Ellicott, rarely flooded 65 Very limited Somewhat limited Very limited Low exchange capacity 1.00 Flooding 0.40 Unstable excavation walls 1.00 Droughty 1.00 Too sandy 0.50 Ellicott skeletal, flooded sandy- rarely 25 Very limited Somewhat limited Very limited Too sandy 1.00 Flooding 0.40 Unstable walls excavation 1.00 Low exchange capacity 1.00 Droughty 1.00 Gravel content 0.95 Large stones content 0.01 80 Custom Soil Resource Report Roads and Streets, Shallow Excavations, and Lawns and Landscaping -Weld County, Colorado, Southern Part Map symbol and soil name Pct. map unit of Lawns and landscaping Local roads and streets Shallow excavations Rating limiting class and features Value Rating class limiting and features Value Rating class and limiting features Value 27—Heldt silty clay, 1 to 3 percent slopes Heldt 85 Very limited Very limited Somewhat limited Too clayey 1.00 Shrink -swell 1.00 Unstable excavation walls 0.51 Dusty 0.50 Low strength 1.00 Dusty 0.50 Too clayey 0.28 32 Kim loam, 1 to 3 percent slopes Kim 90 Somewhat limited Not limited Somewhat limited Low exchange capacity 0.50 Dusty 0.27 Dusty 0.27 Unstable excavation walls 0.01 33 Kim loam, 3 to 5 percent slopes Kim 90 Somewhat limited Not limited Somewhat limited Low exchange capacity 0.50 Dusty 0.27 Dusty 0.27 Unstable excavation walls 0.01 34 —Kim loam, 5 to 9 percent slopes Kim 90 Somewhat limited Not limited Somewhat limited Low exchange capacity 0.50 Dusty 0.27 Dusty 0.27 Unstable excavation walls 0.01 81 Custom Soil Resource Report Roads and Streets, Shallow Excavations, and Lawns and Landscaping -Weld County, Colorado, Southern Part Map symbol and soil name Pct. map unit of Lawns and landscaping Local roads and streets Shallow excavations Rating limiting class and features Value Rating class limiting and features Value Rating class and limiting features Value 35—Loup-Boel loamy sands, 0 to 3 percent slopes Loup 55 Very limited Very limited Very limited Depth to saturated zone 1.00 Depth to saturated zone 1.00 Depth to saturated zone 1.00 Droughty 0.69 Frost action 0.50 Unstable excavation walls 0.01 Low exchange capacity 0.50 Boel 35 Somewhat limited Somewhat limited Very limited Low exchange capacity 0.75 Frost action O50 Depth to saturated zone 1.00 Droughty 0.69 Depth to saturated zone 0.04 Unstable excavation walls 0.68 Depth to saturated zone 0.04 39 Nunn loam, 0 to 1 percent slopes Nunn 85 Somewhat limited Very limited Somewhat limited Dusty 0.33 Low strength 1.00 Dusty 0.33 Shrink -swell 0.77 Unstable excavation walls 0.01 40 Nunn loam, 1 to 3 percent slopes Nunn 85 Somewhat limited Very limited Somewhat limited Dusty 0.33 Low strength 1.00 Dusty 0.33 Shrink -swell 0.77 Unstable excavation walls 0.01 41 Nunn clay loam, 0 to 1 percent slopes Nunn 85 Somewhat limited Very limited Somewhat limited Dusty 0.34 Low strength 1.00 Dusty 0.34 Shrink -swell 0.77 Unstable excavation walls 0.01 42 Nunn loam, 1 clay to 3 percent slopes Nunn 85 Somewhat limited Very limited Somewhat limited Dusty 0.33 Low strength 1.00 Dusty 0.33 Shrink -swell 0.77 Unstable excavation walls 0.01 82 Custom Soil Resource Report Roads and Streets, Shallow Excavations, and Lawns and Landscaping —Weld County, Colorado, Southern Part Map symbol and soil name Pct. map unit of Lawns and landscaping Local roads and streets Shallow excavations Rating limiting class and features Value Rating class limiting and features Value Rating class and limiting features Value 44 Olney loamy to 3 percent sand, 1 slopes Olney 85 Somewhat limited Not limited Somewhat limited Dusty 0.01 Unstable excavation walls 0.01 Dusty 0.01 47 —Olney loam, 1 slopes fine sandy to 3 percent Olney 85 Somewhat limited Not limited Somewhat limited Dusty 0.09 Dusty 0.09 Unstable excavation walls 0.01 48 Olney fine sandy to 5 percent loam, 3 slopes Olney 85 Somewhat limited Not limited Somewhat limited Dusty 0.09 Dusty 0.09 Unstable excavation walls 0.01 57 Renohill clay to 9 percent loam, 3 slopes Renohill 85 Somewhat limited Very limited Somewhat limited Dusty 0.39 Shrink -swell 1.00 Unstable excavation walls 0.51 Depth to bedrock 0.29 Low strength 1.00 Dusty 0.39 Depth to soft bedrock 0.29 61 Tassel fine sandy to 20 slopes loam, 5 percent Tassel 85 Very limited Somewhat limited Very limited Depth to bedrock 1.00 Depth to soft bedrock 1.00 Depth to soft bedrock 1.00 Droughty 0.99 Slope 0.84 Slope 0.84 Slope 0.84 Dusty 0.05 Low exchange capacity 0.75 Unstable excavation walls 0.01 Dusty 0.05 83 Custom Soil Resource Report Roads and Streets, Shallow Excavations, and Lawns and Landscaping —Weld County, Colorado, Southern Part Map symbol and soil name Pct. map unit of Lawns and landscaping Local roads and streets Shallow excavations Rating limiting class and features Value Rating class limiting and features Value Rating class and limiting features Value 64—Thedalund 1 to 3 slopes loam, percent Thedalund 90 Somewhat limited Somewhat limited Somewhat limited Depth to bedrock 0.54 Shrink -swell 0.50 Depth to soft bedrock 0.54 Dusty 0.28 Dusty 0.28 Unstable excavation walls 0.01 65—Thedalund loam, percent 3 to 9 slopes Thedalund 80 Somewhat limited Somewhat limited Somewhat limited Depth to bedrock 0.54 Shrink -swell 0.50 Depth to soft bedrock 0.54 Dusty 0.28 Dusty 0.28 Unstable excavation walls 0.01 67 to —Ulm clay loam, 3 slopes 5 percent Ulm 85 Somewhat limited Very limited Somewhat limited Dusty 0.39 Shrink -swell 1.00 Unstable excavation walls 0.51 Low strength 1.00 Dusty 0.39 70—Valent sand, 3 to 9 percent slopes Valent 80 Very limited Not limited Very limited Low exchange capacity 1.00 Unstable excavation walls 1.00 Droughty 1.00 Too sandy 0.50 72 —Vona 0 to 3 slopes loamy sand, percent Vona 85 Somewhat limited Not limited Somewhat limited Low exchange capacity 0.75 Unstable excavation walls 0.01 73 —Vona loamy sand, percent 3 to slopes 5 Vona 85 Somewhat limited Somewhat limited Somewhat limited Low exchange capacity 0.50 Frost action 0.50 Unstable excavation walls 0.01 84 Custom Soil Resource Report Roads and Streets, Shallow Excavations, and Lawns and Landscaping -Weld County, Colorado, Southern Part Map symbol and soil name Pct. map unit of Lawns and landscaping Local roads and streets Shallow excavations Rating limiting class and features Value Rating class limiting features and Value Rating class and limiting features Value 76 —Vona 3 sandy loam, percent 1 to slopes Vona 85 Somewhat limited Not limited Somewhat limited Low exchange capacity 0.75 Dusty 0.03 Dusty 0.03 Unstable excavation walls 0.01 77 Vona 5 sandy loam, percent 3 to slopes Vona 85 Somewhat limited Not limited Somewhat limited Low exchange capacity 0.75 Dusty 0.03 Dusty 0.03 Unstable excavation walls 0.01 78 —Weld loam, 0 to 1 percent slopes Weld 80 Somewhat limited Very limited Somewhat limited Dusty 0.33 Low strength 1.00 Dusty 0.33 Shrink -swell 0.02 Unstable excavation walls 0.01 79 —Weld loam, 1 to 3 percent slopes Weld 80 Somewhat limited Very limited Somewhat limited Dusty 0.33 Low strength 1.00 Dusty 0.33 Shrink -swell 0.01 Unstable excavation walls 0.01 81 Wiley -Colby 0 to 1 slopes complex, percent Wiley 60 Somewhat limited Very limited Somewhat limited Dusty 0.50 Low strength 1.00 Dusty 0.50 Shrink -swell 0.42 Unstable excavation walls 0.01 Colby 30 Somewhat limited Somewhat limited Somewhat limited Low exchange capacity. 0.50 Low strength 0.22 Dusty 0.49 Dusty 0.49 Unstable excavation walls 0.01 85 Custom Soil Resource Report Roads and Streets, Shallow Excavations, and Lawns and Landscaping -Weld County, Colorado, Southern Part Map symbol and soil name Pct. map unit of Lawns and landscaping Local roads and streets Shallow excavations Rating limiting class and features Value Rating class limiting and features Value Rating class and limiting features Value 82 —Wiley -Colby complex, 1 to 3 percent slopes Wiley 60 Somewhat limited Very limited Somewhat limited Dusty 0.50 Low strength 1.00 Dusty 0.50 Shrink -swell 0.42 Unstable excavation walls 0.01 Colby 30 Somewhat limited Somewhat limited Somewhat limited Low exchange capacity 0.50 Low strength 0.22 Dusty 0.49 Dusty 0.49 Unstable excavation walls 0.01 83 Wiley -Colby complex, 3 to 5 percent slopes Wiley 55 Somewhat limited Very limited Somewhat limited Dusty 0.50 Low strength 1.00 Dusty 0.50 Shrink -swell 0.42 Unstable excavation walls 0.01 Colby 30 Somewhat limited Somewhat limited Somewhat limited Low exchange capacity 0.50 Low strength 0.22 Dusty 0.49 Dusty 0.49 Unstable walls excavation 0.01 85 Water Water 95 Not rated Not rated Not rated 86 References American Association of State Highway and Transportation Officials (AASHTG). 2004. Standard specifications for transportation materials and methods of sampling and testing. 24th edition. American Society for Testing and Materials (ASTM). 2005. Standard classification of soils for engineering purposes. ASTM Standard D2487-00. Cowardin, L.M., V. Carter, F.C. Golet, and E.T. LaRoe. 1979. Classification of wetlands and deep -water habitats of the United States. L.S. Fish and Wildlife Service FWS/OBS-79/31. Federal Register. July 13, 1994. Changes in hydric soils of the United States. Federal Register. September 18, 2002. Hydric soils of the United States. Hurt, G.W., and L.M. Vasilas, editors. Version 6.0, 2006. Field indicators of hydric soils in the United States. N ational Research Council. 1995. Wetlands: Characteristics and boundaries. Soil Survey Division Staff. 1993. Soil survey manual. Soil Conservation Service. U .S. Department of Agriculture Handbook 18. http://www.nres.usda.gov/wps!portal/ nres/detail/national/soils/?cid=nres142p2_054262 Soil Survey Staff. 1999. Soil taxonomy: A basic system of soil classification for making and interpreting soil surveys. 2nd edition. Natural Resources Conservation Service, U.S. Department of Agriculture Handbook 436. http:// www.nres. usda.gov/wps/portal/nres/detail/national/soils/?cid=nres142p2_053577 Soil Survey Staff. 2010. Keys to soil taxonomy. 11th edition. U.S. Department of Agriculture, Natural Resources Conservation Service. http:// wvwv.nres. usda.goviwps/portal/nres/detail/national/soils/?cid=nres142p2_053580 Tiner, R.'W., Jr. 1985. Wetlands of Delaware. U.S. Fish and Wildlife Service and Delaware Department of Natural Resources and Environmental Control, Wetlands Section. U nited States Army Corps of Engineers, Environmental Laboratory. 1987. Corps of Engineers wetlands delineation manual. Waterways Experiment Station Technical Report Y-87-1. U nited States Department of Agriculture, Natural Resources Conservation Service. N ational forestry manual. http://wv► w.nres.usda.gov/wps/portal/nres/detail/soils/ home/?cid=nres142p2_053374 U nited States Department of Agriculture, Natural Resources Conservation Service. N ational range and pasture handbook. http://w w.nres.usda.gov/wps/portal/nres/ detail/national/landuse/rangepasture/?cid=stelprdb 1043084 87 Custom Soil Resource Report U nited States Department of Agriculture, Natural Resources Conservation Service. N ational soil survey handbook, title 430 -VI. http://wv.nres.usda.gov/wps/portal/ nres/detail/soilslscientists/'cid=nres1 42p2_054242 United States Department of Agriculture, Natural Resources Conservation Service. 2006. Land resource regions and major land resource areas of the United States, the Caribbean, and the Pacific Basin. U.S. Department of Agriculture Handbook 296. http://www.nrcs.usda.goviwpsiportalinrcsidetailinationalisoilsi? ci d = n res 142 p2_053 024 U nited States Department of Agriculture, Soil Conservation Service. 1961. Land capability classification. U.S. Department of Agriculture Handbook 210. http:// www.nrcs.usda.gov/Internet/FSE DOCUMENTS/nrcs142p2 052290.pdf 88 USDA United States al Department of Agriculture MRCS Natural Resources Conservation Service A product of the National Cooperative Soil Survey, a joint effort of the United States Department of Agriculture and other Federal agencies, State agencies including the Agricultural Experiment Stations, and local participants Custom Soil Resource Report for Weld County, Colorado, Northern Part Water Tank January 12, 2021 Preface Soil surveys contain information that affects land use planning in survey areas. They highlight soil limitations that affect various land uses and provide information about the properties of the soils in the survey areas. Soil surveys are designed for many different users, including farmers, ranchers, foresters, agronomists, urban planners, community officials, engineers, developers, builders, and home buyers. Also, conservationists, teachers, students, and specialists in recreation, waste disposal, and pollution control can use the surveys to help them understand, protect, or enhance the environment. Various land use regulations of Federal, State, and local governments may impose special restrictions on land use or land treatment. Soil surveys identify soil properties that are used in making various land use or land treatment decisions_ The information is intended to help the land users identify and reduce the effects of soil limitations on various land uses. The landowner or user is responsible for identifying and complying with existing laws and regulations. Although soil survey information can be used for general farm, local, and wider area planning, onsite investigation is needed to supplement this information in some cases. Examples include soil quality assessments (http://www.nres.usda.gov/wps/ portal/arcs/main/soils/health/) and certain conservation and engineering applications. For more detailed information, contact your local USDA Service Center (https://offices.sc.egov.usda.gov/locator/app?agency=arcs) or your NRCS State Soil Scientist (http://www.nres.usda.govtwps/portal/nres/detail/soils/contactus/? ci d = n res 142 p2_053951). Great differences in soil properties can occur within short distances. Some soils are seasonally wet or subject to flooding. Some are too unstable to be used as a foundation for buildings or roads. Clayey or wet soils are poorly suited to use as septic tank absorption fields. A high water table makes a soil poorly suited to basements or underground installations. The National Cooperative Soil Survey is a joint effort of the United States Department of Agriculture and other Federal agencies, State agencies including the Agricultural Experiment Stations, and local agencies. The Natural Resources Conservation Service (NRCS) has leadership for the Federal pad of the National Cooperative Soil Survey. Information about soils is updated periodically. Updated information is available through the NRCS Web Soil Survey, the site for official soil survey information. The U.S. Department of Agriculture (USDA) prohibits discrimination in all its programs and activities on the basis of race, color, national origin, age, disability, and where applicable, sex, marital status, familial status, parental status, religion, sexual orientation, genetic information, political beliefs, reprisal, or because all or a part of an individual's income is derived from any public assistance program. (Not all prohibited bases apply to all programs.) Persons with disabilities who require 2 alternative means for communication of program information (Braille, large print, audiotape, etc.) should contact USDA's TARGET Center at (202) 720-2600 (voice and TDD). To file a complaint of discrimination, write to USDA, Director, Office of Civil Rights, 1400 Independence Avenue, S.W., Washington, D.C. 20250-9410 or call (800) 795-3272 (voice) or (202) 720-6382 (TDD). USDA is an equal opportunity provider and employer. 3 Contents Preface 2 How Soil Surveys Are Made..5 Soil Map 8 Soil Map9 Legend 10 Map Unit Legend11 Map Unit Descriptions11 Weld County, Colorado, Northern Part 13 4 -Ascalon fine sandy loam, 0 to 6 percent slopes 13 66 Terry sandy loam, 3 to 9 percent slopes 14 67Thedalund-Keota loams, 3 to 9 percent slopes 16 Soil Information for All Uses18 Suitabilities and Limitations for Use 18 Building Site Development18 Small Commercial Buildings (Water Tank) 18 Soil Reports23 Building Site Development23 Dwellings and Small Commercial Buildings (Water Tank)23 References.26 4 How Soil Surveys Are Made Soil surveys are made to provide information about the soils and miscellaneous areas in a specific area. They include a description of the soils and miscellaneous areas and their location on the landscape and tables that show soil properties and limitations affecting various uses_ Soil scientists observed the steepness, length, and shape of the slopes; the general pattern of drainage; the kinds of crops and native plants; and the kinds of bedrock. They observed and described many soil profiles_ A soil profile is the sequence of natural layers, or horizons, in a soil. The profile extends from the surface down into the unconsolidated material in which the soil formed or from the surface down to bedrock. The unconsolidated material is devoid of roots and other living organisms and has not been changed by other biological activity. Currently, soils are mapped according to the boundaries of major land resource areas (MLRAs). MLRAs are geographically associated land resource units that share common characteristics related to physiography, geology, climate, water resources, soils, biological resources, and land uses (USDA, 2006). Soil survey areas typically consist of parts of one or more MLRA. The soils and miscellaneous areas in a survey area occur in an orderly pattern that is related to the geology, landforms, relief, climate, and natural vegetation of the area. Each kind of soil and miscellaneous area is associated with a particular kind of landform or with a segment of the landform. By observing the soils and miscellaneous areas in the survey area and relating their position to specific segments of the landform, a soil scientist develops a concept, or model, of how they were formed. Thus, during mapping, this model enables the soil scientist to predict with a considerable degree of accuracy the kind of soil or miscellaneous area at a specific location on the landscape. Commonly, individual soils on the landscape merge into one another as their characteristics gradually change. To construct an accurate soil map, however, soil scientists must determine the boundaries between the soils_ They can observe only a limited number of soil profiles. Nevertheless, these observations, supplemented by an understanding of the soil -vegetation -landscape relationship, are sufficient to verify predictions of the kinds of soil in an area and to determine the boundaries_ Soil scientists recorded the characteristics of the soil profiles that they studied. They noted soil color, texture, size and shape of soil aggregates, kind and amount of rock fragments, distribution of plant roots, reaction, and other features that enable them to identify soils. After describing the soils in the survey area and determining their properties, the soil scientists assigned the soils to taxonomic classes (units). Taxonomic classes are concepts. Each taxonomic class has a set of soil characteristics with precisely defined limits_ The classes are used as a basis for comparison to classify soils systematically. Soil taxonomy, the system of taxonomic classification used in the United States, is based mainly on the kind and character of soil properties and the arrangement of horizons within the profile_ After the soil 5 Custom Soil Resource Report scientists classified and named the soils in the survey area, they► compared the individual soils with similar soils in the same taxonomic class in other areas so that they could confirm data and assemble additional data based on experience and research. The objective of soil mapping is not to delineate pure map unit components; the objective is to separate the landscape into landforms or landform segments that have similar use and management requirements. Each map unit is defined by a unique combination of soil components and/or miscellaneous areas in predictable proportions. Some components may be highly contrasting to the other components of the map unit. The presence of minor components in a map unit in no way diminishes the usefulness or accuracy of the data. The delineation of such landforms and landform segments on the map provides sufficient information for the development of resource plans. If intensive use of small areas is planned, onsite investigation is needed to define and locate the soils and miscellaneous areas. Soil scientists make many field observations in the process of producing a soil map. The frequency of observation is dependent upon several factors, including scale of mapping, intensity of mapping, design of map units, complexity of the landscape, and experience of the soil scientist. Observations are made to test and refine the soil -landscape model and predictions and to verify the classification of the soils at specific locations. Once the soil -landscape model is refined, a significantly smaller number of measurements of individual soil properties are made and recorded. These measurements may include field measurements, such as those for color, depth to bedrock, and texture, and laboratory measurements, such as those for content of sand, silt, clay, salt, and other components. Properties of each soil typically vary from one point to another across the landscape. Observations for map unit components are aggregated to develop ranges of characteristics for the components. The aggregated values are presented. Direct measurements do not exist for every property presented for every map unit component. Values for some properties are estimated from combinations of other properties. While a soil survey is in progress, samples of some of the soils in the area generally are collected for laboratory analyses and for engineering tests. Soil scientists interpret the data from these analyses and tests as well as the field -observed characteristics and the soil properties to determine the expected behavior of the soils under different uses. Interpretations for all of the soils are field tested through observation of the soils in different uses and under different levels of management. Some interpretations are modified to fit local conditions, and some new interpretations are developed to meet local needs. Data are assembled from other sources, such as research information, production records, and field experience of specialists. For example, data on crop yields under defined levels of management are assembled from farm records and from field or plot experiments on the same kinds of soil. Predictions about soil behavior are based not only on soil properties but also on such variables as climate and biological activity. Soil conditions are predictable over long periods of time, but they are not predictable from year to year. For example, soil scientists can predict with a fairly high degree of accuracy that a given soil will have a high water table within certain depths in most years, but they cannot predict that a high water table will always be at a specific level in the soil on a specific date. After soil scientists located and identified the significant natural bodies of soil in the survey area, they drew the boundaries of these bodies on aerial photographs and 6 Custom Soil Resource Report identified each as a specific map unit. Aerial photographs show trees, buildings, fields, roads, and rivers, all of which help in locating boundaries accurately. Soil Map The soil map section includes the soil map for the defined area of interest, a list of soil map units on the map and extent of each map unit, and cartographic symbols displayed on the map. Also presented are various metadata about data used to produce the map, and a description of each soil map unit. 8 Custom Soil Resource Report MAP LEGEND Area of Interest (AQI) Area of Interest (AOI) Soils O Soil Map Unit Polygons Soil Map Unit Lines Soil Map Unit Points Special Point Features t, Blowout Borrow Pit Clay Spot Closed Depression Gravel Pit Gravelly Spot Landfill Lava Flow Marsh or swamp Mine or Quarry Miscellaneous Water Perennial Water Rock Outcrop Saline Spot Sandy Spot Severely Eroded Spot Sinkhole Slide or Slip Sodic Spot I 4i a Spoil Area Stony Spot Very Stony Spot Wet Spot Other Special Line Features Water Features Streams and Canals Transportation -1--11—F Rails Interstate Highways US Routes Major Roads Local Roads Background Aerial Photography MAP INFORMATION The soil surveys that comprise your AOI were mapped at 1:24,000. Warning: Soil Map may not be valid at this scale. Enlargement of maps beyond the scale of mapping can cause misunderstanding of the detail of mapping and accuracy of soil line placement. The maps do not show the small areas of contrasting soils that could have been shown at a more detailed scale. Please rely on the bar scale on each map sheet for map measurements. Source of Map: Natural Resources Conservation Service Web Soil Survey URL: Coordinate System: Web Mercator (EPSG:8857) Maps from the Web Soil Survey are based on the Web Mercator projection, which preserves direction and shape but distorts distance and area. A projection that preserves area, such as the Albers equal-area conic projection, should be used if more accurate calculations of distance or area are required. This product is generated from the USDA-NRCS certified data as of the version date(s) listed below. Soil Survey Area: Weld County, Colorado, Northern Part Survey Area Data: Version 15, Jun 5, 2020 Soil map units are labeled (as space allows) for map scales 1:50,000 or larger. Date(s) aerial images were photographed: Jul 19, 2018 —Aug 10, 2018 The orthophoto or other base map on which the soil lines were compiled and digitized probably differs from the background imagery displayed on these maps. As a result, some minor shifting of map unit boundaries may be evident. 10 Custom Soil Resource Report Map Unit Legend Map Unit Symbol Map Unit Name Acres in Aol Percent of AO' 4 Ascalon fine sandy loam, 0 to 6 percent slopes 1.3 85.1% 65 Terry sandy loam, 3 to 9 percent slopes 0.0 O.6% 67 Thedalund-Keota loams, 3 to 9 percent slopes 0.2 14.4% Totals for Area of Interest 1.5 100.0% Map Unit Descriptions The map units delineated on the detailed soil maps in a soil survey represent the soils or miscellaneous areas in the survey area. The map unit descriptions, along with the maps, can be used to determine the composition and properties of a unit. A map unit delineation on a soil map represents an area dominated by one or more major kinds of soil or miscellaneous areas. A map unit is identified and named according to the taxonomic classification of the dominant soils. Within a taxonomic class there are precisely defined limits for the properties of the soils. On the landscape, however, the soils are natural phenomena, and they have the characteristic variability of all natural phenomena. Thus, the range of some observed properties may extend beyond the limits defined for a taxonomic class. Areas of soils of a single taxonomic class rarely, if ever, can be mapped without including areas of other taxonomic classes. Consequently, every map unit is made u p of the soils or miscellaneous areas for which it is named and some minor components that belong to taxonomic classes other than those of the major soils. Most minor soils have properties similar to those of the dominant soil or soils in the map unit, and thus they do not affect use and management. These are called n oncontrasting, or similar, components. They may or may not be mentioned in a particular map unit description. Other minor components, however, have properties and behavioral characteristics divergent enough to affect use or to require different management. These are called contrasting, or dissimilar, components. They generally are in small areas and could not be mapped separately because of the scale used. Some small areas of strongly contrasting soils or miscellaneous areas are identified by a special symbol on the maps. If included in the database for a given area, the contrasting minor components are identified in the map unit descriptions along with some characteristics of each. A few areas of minor components may not have been observed, and consequently they are not mentioned in the descriptions, especially where the pattern was so complex that it was impractical to make enough observations to identify all the soils and miscellaneous areas on the landscape. The presence of minor components in a map unit in no way diminishes the u sefulness or accuracy of the data. The objective of mapping is not to delineate pure taxonomic classes but rather to separate the landscape into landforms or 11 Custom Soil Resource Report landform segments that have similar use and management requirements. The delineation of such segments on the map provides sufficient information for the development of resource plans. If intensive use of small areas is planned, however, onsite investigation is needed to define and locate the soils and miscellaneous areas An identifying symbol precedes the map unit name in the map unit descriptions. Each description includes general facts about the unit and gives important soil properties and qualities. Soils that have profiles that are almost alike make up a soil series. Except for differences in texture of the surface layer, all the soils of a series have major horizons that are similar in composition, thickness, and arrangement. Soils of one series can differ in texture of the surface layer, slope, stoniness, salinity, degree of erosion, and other characteristics that affect their use. On the basis of such differences, a soil series is divided into soil phases. Most of the areas shown on the detailed soil maps are phases of soil series. The name of a soil phase commonly indicates a feature that affects use or management. For example, Alpha silt loam, 0 to 2 percent slopes, is a phase of the Alpha series. Some map units are made up of two or more major soils or miscellaneous areas. These map units are complexes, associations, or undifferentiated groups. A complex consists of two or more soils or miscellaneous areas in such an intricate pattern or in such small areas that they cannot be shown separately on the maps. The pattern and proportion of the soils or miscellaneous areas are somewhat similar in all areas. Alpha -Beta complex, 0 to 6 percent slopes, is an example. An association is made up of two or more geographically associated soils or miscellaneous areas that are shown as one unit on the maps. Because of present or anticipated uses of the map units in the survey area, it was not considered practical or necessary to map the soils or miscellaneous areas separately. The pattern and relative proportion of the soils or miscellaneous areas are somewhat similar. Alpha -Beta association, 0 to 2 percent slopes, is an example. An undifferentiated group is made up of two or more soils or miscellaneous areas that could be mapped individually but are mapped as one unit because similar interpretations can be made for use and management. The pattern and proportion of the soils or miscellaneous areas in a mapped area are not uniform. An area can be made up of only one of the major soils or miscellaneous areas, or it can be made up of all of them. Alpha and Beta soils, 0 to 2 percent slopes, is an example. Some surveys include miscellaneous areas. Such areas have little or no soil material and support little or no vegetation. Rock outcrop is an example. 12 Custom Soil Resource Report Weld County, Colorado, Northern Part 4 Ascalon fine sandy loam, 0 to 6 percent slopes Map Unit Setting National map unit symbol: 2tlp5 Elevation: 4,550 to 6,050 feet Mean annual precipitation: 12 to 17 inches Mean annual air temperature: 46 to 54 degrees F Frost -free period: 135 to 160 days Farmland classification: Farmland of statewide importance Map Unit Composition Ascalon and similar soils: 85 percent ►►Minor components: 15 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Ascalon Setting Landforrn: I nterfl eves Landforn position (two-dimensional): Backslope, summit Lan dform position (three-dimensional): I me rfl uve Down -slope shape: Linear Across -slope shape: Linear Parent material: Wind -reworked alluvium and/or calcareous sandy eolian deposits Typical profile Ap - 0 to 7 inches: fine sandy loam Bti - 7 to 13 inches: sandy clay loam Bt2 - 13 to 18 inches: sandy clay loam Bk - 18 to 48 inches: sandy loam C - 48 to 80 inches: sandy loam Properties and qualities Slope: 0 to 6 percent Depth to restrictive feature: More than 80 inches Drainage class: Well drained Runoff class: Low Capacity of the most limiting► layer to transmit water ('Ksat): Moderately high to high (0.60 to 6.00 in/hr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Calcium carbonate, maximum content: 10 percent Maximum salinity: Nonsaline (0.1 to 1.9 mmhos/cm) Sodium adsorption ratio, maximum: 1.0 Available water capacity: Moderate (about 6.8 inches) Interpretive groups Land capability classification (irrigated): 3e Land capability classification (nonirrigated): 4e Hydrologic Soil Group: B Ecological site: RO67BY024CO - Sandy Plains Hydric soil rating: No 13 Custom Soil Resource Report Minor Components of nest Percent of map unit: 8 percent Landform: I nterfl uves Landform position (two-dimensional): Backslope Landform position (three-dimensional): Side slope Down -slope shape: Linear Across -slope shape: Linear Ecological site: R067BY024CO - Sandy Plains Hydric soil rating: No Otero Percent of map unit: 7 percent Landform: I nterfl uves Landform position (two-dimensional): Footslope Landform position (three-dimensional): Base slope Down -slope shape: Linear Across -slope shape: Linear Ecological site: R067BY024CO - Sandy Plains Hydric soil rating: No 65 Terry sandy loam, 3 to 9 percent slopes Map Unit Setting National map unit symbol: 360p Elevation: 4,000 to 6,500 feet Mean annual precipitation: 13 to 15 inches Mean annual air temperature: 46 to 48 degrees F Frost -free period: 120 to 180 days Farmland classification: Not prime farmland Map Unit Composition Terry and similar soils: 85 percent Minor components: 15 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Terry Setting Landform: Plains Down -slope shape: Linear Across -slope shape: Linear Parent material: Calcareous sandy residuum weathered from sandstone Typical profile HI - 0 to 5 inches: sandy loam H2 - 5 to 17 inches: fine sandy loam, sandy loam H2 - 5 to 17 inches: fine sandy loam, sandy loam, gravelly sandy loam H3 - 17 to 32 inches: weathered bedrock 14 Custom Soil Resource Report H3 - 17 to 32 inches: H3 - 17 to 32 inches: H4-32 to 36 inches: Properties and qualities Slope: 3 to 9 percent Depth to restrictive feature: 20 to 40 inches to paralithic bedrock Drainage class: Well drained Runoff class: Medium capacity of the most limiting layer to transmit water (sat): Moderately low to high (0.06 to 2.00 in/hr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of pending: None Calcium carbonate, maximum content: 15 percent Maximum salinity: Nonsaline to very slightly saline (0.0 to 2.0 mmhoslcm) Available water capacity: Moderate (about 8.4 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 6e Hydrologic Soil Group. B Ecological site: R067BY024CO - Sandy Plains Hydric soil rating: No Minor Components Tassel Percent of map unit: 5 Hydric soil rating: No Olney Percent of map unit: 4 Hydric soil rating: No Vona percent percent Percent of map unit: 3 percent Hydric soil rating: No Renohill Percent of map unit: 3 percent Hydric soil rating: No 67 Thedalund-Keota learns, 3 to 9 percent slopes Map Unit Setting National map unit symbol: 360r Elevation: 3,500 to 0,500 feet Mean annual precipitation: 13 to 17 inches Mean annual air temperature: 46 to 48 degrees F Frost -free period: 130 to 160 days Farmland classification: Not prime farmland 15 Custom Soil Resource Report Map Unit Composition Thedalund and similar soils: 45 percent Keota and similar soils: 30 percent Minor components: 25 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Thedalund Setting Landform: Plains, ridges, alluvial fans Down -slope shape: Linear Across -slope shape: Linear Parent material: Residuum weathered from siltstone and/or calcareous loamy residuum weathered from sandstone and shale Typical profile H9 - 0 to 3 inches: loam H2 - 3 to 24 inches: loam H3 - 24 to 28 inches: weathered bedrock Properties and qualities Slope: 3 to 9 percent Depth to restrictive feature: 20 to 40 inches to paralithic bedrock Drainage class: Well drained Runoff class: Medium Capacity of the most limiting layer to transmit water (Ksat): Moderately low to high (0.06 to 2.00 inlhr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Calcium carbonate, maximum content: 15 percent Maximum salinity: Nonsaline to moderately saline (0.0 to 8.0 mmhoslcm) Available water capacity: Low (about 4.1 inches) Interpretive groups Land capability classification (irrigated): 4e Land capability classification (nonirrigated): 6e Hydrologic Soil Group: C Ecological site: R067'3)/002O0 - Loamy Plains Hydric soil rating: No Description of Keota Setting Landform: Plains, ridges, alluvial fans Down -slope shape: Linear Across -slope shape: Linear Parent material: Calcareous loamy residuum weathered from siltstone Typical profile HI - 0 to 4 inches. loam H2 - 4 to 35 inches: silt loam H3 - 35 to 39 inches: unweathered bedrock Properties and qualities Slope: 3 to 9 percent Depth to restrictive feature: 20 to 40 inches to paralithic bedrock 16 Custom Soil Resource Report Drainage class: Well drained Runoff class: Medium Capacity of the most limiting layer to transmit water (sat): Moderately low to moderately high (0.06 to 0.20 inlhr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Calcium carbonate, maximum content: 10 percent Maximum salinity: Nonsaline to very slightly saline (0.0 to 2.0 mmh0slcm) Available water capacity: Low (about 5.3 inches) Interpretive groups Land capability classification (irrigated): 4e Land capability classification (nonirrigated): 6e Hydrologic Soil Group: C Ecological site: R007PY009CO - Siltstone Plains Hydric soil rating: No Minor Components Epping Percent of map unit: 10 percent Hydric soil rating: No Kim Percent of map unit: 5 percent Hydric soil rating: No Shingle Percent of map unit: 5 percent Hydric soil rating: No Mitchell Percent of map unit: 5 percent Hydric soil rating: No Soil Information for All Uses Suitabilities and Limitations for Use The Suitabilities and Limitations for Use section includes various soil interpretations displayed as thematic maps with a summary table for the soil map units in the selected area of interest. A single value or rating for each map unit is generated by aggregating the interpretive ratings of individual map unit components. This aggregation process is defined for each interpretation. Building Site Development Building site development interpretations are designed to be used as tools for evaluating soil suitability and identifying soil limitations for various construction purposes. As part of the interpretation process, the rating applies to each soil in its described condition and does not consider present land use. Example interpretations can include corrosion of concrete and steel, shallow excavations, dwellings with and without basements, small commercial buildings, local roads and streets, and lawns and landscaping. Small Commercial Buildings (Water Tank) Small commercial buildings are structures that are less than three stories high and do not have basements. The foundation is assumed to consist of spread footings of reinforced concrete built on undisturbed soil at a depth of 2 feet or at the depth of maximum frost penetration, whichever is deeper. The ratings are based on the soil properties that affect the capacity of the soil to support a load without movement and on the properties that affect excavation and construction costs. The properties that affect the load -supporting capacity include depth to a water table, ponding, flooding, subsidence, linear extensibility (shrink -swell potential), and compressibility (which is inferred from the Unified classification of the soil). The properties that affect the ease and amount of excavation include flooding, depth to a water table, ponding, slope, depth to bedrock or a cemented pan, hardness of bedrock or a cemented pan, and the amount and size of rock fragments. The ratings are both verbal and numerical. Rating class terms indicate the extent to which the soils are limited by all of the soil features that affect the specified use. "Not limited" indicates that the soil has features that are very favorable for the specified use. Good performance and very low maintenance can be expected. 18 Custom Soil Resource Report "Somewhat limited" indicates that the soil has features that are moderately favorable for the specified use. The limitations can be overcome or minimized by special planning, design, or installation. Fair performance and moderate maintenance can be expected. "Very limited" indicates that the soil has one or more features that are unfavorable for the specified use. The limitations generally cannot be overcome without major soil reclamation, special design, or expensive installation procedures. Poor performance and high maintenance can be expected. Numerical ratings indicate the severity of individual limitations. The ratings are shown as decimal fractions ranging from 0.01 to 1.00. They indicate gradations between the point at which a soil feature has the greatest negative impact on the use (1.00) and the point at which the soil feature is not a limitation (0.00). The map unit components listed for each map unit in the accompanying Summary by Map Unit table in Web Soil Survey or the Aggregation Report in Soil Data Viewer are determined by the aggregation method chosen. An aggregated rating class is shown for each map unit. The components listed for each map unit are only those that have the same rating class as listed for the map unit. The percent composition of each component in a particular map unit is presented to help the user better understand the percentage of each map unit that has the rating presented. Other components with different ratings may be present in each map unit. The ratings for all components, regardless of the map unit aggregated rating, can be viewed by generating the equivalent report from the Soil Reports tab in Web Soil Survey or from the Soil Data Mart site. Onsite investigation may be needed to validate these interpretations and to confirm the identity of the soil on a given site. 19 Custom Soil Resource Report MAP LEGEND Area of Interest (Aol) Area of Interest (A0l) Soils Soil Rating Polygons Very limited Somewhat limited Not limited Not rated or not available Soil Rating Lines ,,,.+ Very limited - Somewhat limited .rmt Not limited r • Not rated or not available Soil Rating Points • a 0 Very limited Somewhat limited Not limited O Not rated or not available Water Features Streams and Canals Transportation 4r —f-+ retool Rails Interstate Highways US Routes Major Roads Local Roads Background Aerial Photography MAP INFORMATION The soil surveys that comprise your AOl were mapped at 1:24,000. Warning: Soil Map may not be valid at this scale. Enlargement of maps beyond the scale of mapping can cause misunderstanding of the detail of mapping and accuracy of soil line placement. The maps do not show the small areas of contrasting soils that could have been shown at a more detailed scale. Please rely on the bar scale on each map sheet for map measurements. Source of Map: Natural Resources Conservation Service Web Soil Survey URL: Coordinate System: Web Mercator (EPSG:8857) Maps from the Web Soil Survey are based on the Web Mercator projection, which preserves direction and shape but distorts distance and area. A projection that preserves area, such as the Albers equal-area conic projection, should be used if more accurate calculations of distance or area are required. This product is generated from the USDA-NRCS certified data as of the version date(s) listed below. Soil Survey Area: Weld County, Colorado, Northern Part Survey Area Data: Version 15, Jun 5, 2020 Soil map units are labeled (as space allows) for map scales 1:50,000 or larger. Date(s) aerial images were photographed: Jul 19, 2018 —Aug 10, 2018 The orthophoto or other base map on which the soil lines were compiled and digitized probably differs from the background imagery displayed on these maps. As a result, some minor shifting of map unit boundaries may be evident. 21 Custom Soil Resource Report Tables Small Commercial Buildings (Water Tank) Map unit symbol Map unit name Rating Component name (percent) Rating reasons (numeric values) Acres in AOI Percent of AOI 4 Ascalon fine sandy loam, 0 to 6 percent slopes Not limited Ascalon (85%) 1.3 85.1 % Olnest (8%) Otero (7%) 65 Terry loam, sandy 3 to 9 percent slopes Somewhat limited Terry (85%) Slope (0.52) 0.0 0.6% 67 Thedalund-Keota loams, 3 to 9 percent slopes Somewhat limited Thedalund (45%) Slope (0.52) 0.2 14.4% Shrink -swell (0.50) Keota (30%) Slope (0.52) Totals for Area of Interest 1.5 100.0% Rating Acres in AOl Percent of AOl Not limited 1.3 85.1% Somewhat limited 0.2 14.9% Totals for Area of Interest 1.5 100.0% Rating Options Small Commercial Buildings (Water Tank) Aggregation Method: Dominant Condition Component Percent Cutoffs None Specified Tie -break Rule: Higher 22 Custom Soil Resource Report Soil Reports The Soil Reports section includes various formatted tabular and narrative reports (tables) containing data for each selected soil map unit and each component of each unit. No aggregation of data has occurred as is done in reports in the Soil Properties and Qualities and Suitabilities and Limitations sections. The reports contain soil interpretive information as well as basic soil properties and qualities. A description of each report (table) is included. Building Site Development This folder contains a collection of tabular reports that present soil interpretations related to building site development. The reports (tables) include all selected map units and components for each map unit, limiting features and interpretive ratings. Building site development interpretations are designed to be used as tools for evaluating soil suitability and identifying soil limitations for various construction purposes. As part of the interpretation process, the rating applies to each soil in its described condition and does not consider present land use. Example interpretations can include corrosion of concrete and steel, shallow excavations, dwellings with and without basements, small commercial buildings, local roads and streets, and lawns and landscaping. Dwellings and Small Commercial Buildings (Water Tank) Soil properties influence the development of building sites, including the selection of the site, the design of the structure, construction, performance after construction, and maintenance. This table shows the degree and kind of soil limitations that affect dwellings and small commercial buildings. The ratings in the table are both verbal and numerical. Rating class terms indicate the extent to which the soils are limited by all of the soil features that affect building site development. Not limited indicates that the soil has features that are very favorable for the specified use. Good performance and very low maintenance can be expected. Somewhat limited indicates that the soil has features that are moderately favorable for the specified use. The limitations can be overcome or minimized by special planning, design, or installation. Fair performance and moderate maintenance can be expected. Very limited indicates that the soil has one or more features that are unfavorable for the specified use. The limitations generally cannot be overcome without major soil reclamation, special design, or expensive installation procedures. Poor performance and high maintenance can be expected. Numerical ratings in the table indicate the severity of individual limitations. The ratings are shown as decimal fractions ranging from 0.01 to 1.00. They indicate gradations between the point at which a soil feature has the greatest negative impact on the use (1.00) and the point at which the soil feature is not a limitation (0.00). 23 Custom Soil Resource Report Dwellings are single-family houses of three stories or less. For dwellings without basements, the foundation is assumed to consist of spread footings of reinforced concrete built on undisturbed soil at a depth of 2 feet or at the depth of maximum frost penetration, whichever is deeper. For dwellings with basements, the foundation is assumed to consist of spread footings of reinforced concrete built on undisturbed soil at a depth of about 7 feet. The ratings for dwellings are based on the soil properties that affect the capacity of the soil to support a load without movement and on the properties that affect excavation and construction costs. The properties that affect the load -supporting capacity include depth to a water table, ponding, flooding, subsidence, linear extensibility (shrink -swell potential), and compressibility. Compressibility is inferred from the Unified classification. The properties that affect the ease and amount of excavation include depth to a water table, ponding, flooding, slope, depth to bedrock or a cemented pan, hardness of bedrock or a cemented pan, and the amount and size of rock fragments. Small commercial buildings are structures that are less than three stories high and do not have basements. The foundation is assumed to consist of spread footings of reinforced concrete built on undisturbed soil at a depth of 2 feet or at the depth of maximum frost penetration, whichever is deeper. The ratings are based on the soil properties that affect the capacity of the soil to support a load without movement and on the properties that affect excavation and construction costs. The properties that affect the load -supporting capacity include depth to a water table, ponding, flooding, subsidence, linear extensibility (shrink -swell potential), and compressibility (which is inferred from the Unified classification). The properties that affect the ease and amount of excavation include flooding, depth to a water table, ponding, slope, depth to bedrock or a cemented pan, hardness of bedrock or a cemented pan, and the amount and size of rock fragments. Information in this table is intended for land use planning, for evaluating land use alternatives, and for planning site investigations prior to design and construction. The information, however, has limitations. For example, estimates and other data generally apply only to that part of the soil between the surface and a depth of 5 to 7 feet. Because of the map scale, small areas of different soils may be included within the mapped areas of a specific soil. The information is not site specific and does not eliminate the need for onsite investigation of the soils or for testing and analysis by personnel experienced in the design and construction of engineering works. Government ordinances and regulations that restrict certain land uses or impose specific design criteria were not considered in preparing the information in this table. Local ordinances and regulations should be considered in planning, in site selection, and in design. Report Dwellings and Small Commercial Buildings (Water Tank) [Onsite investigation may be needed to validate the interpretations in this table and to confirm the identity of the soil on a given site. The numbers in the value columns range from 0.01 to 1.00. The larger the value, the greater the potential limitation. The table shows only the top five limitations for any given soil. The soil may have additional limitations] 24 Custom Soil Resource Report Dwellings and Small Commercial Buildings -Weld County, Colorado, Northern Part Map symbol and soil name Pct. map unit of Dwellings without basements Dwellings with basements Small commercial buildings Rating limiting class and features Value Rating class limiting and features Value Rating class and limiting features Value 4 —Ascalon fine sandy loam, 0 to 6 percent slopes Ascalon 85 Not limited Not limited Not limited 65 Terry sandy loam, percent 3 to 9 slopes Terry 85 Not limited Somewhat limited Somewhat limited Depth to soft bedrock 0.29 Slope 0.52 67 Thedalund-Keota 3 to 9 slopes loams, percent Thedalund 45 Somewhat limited Somewhat limited Somewhat limited Shrink -swell 0.50 Depth to soft bedrock 0.90 Slope 0.52 Shrink -swell 0.50 Shrink -swell 0.50 Keota 30 Not limited Somewhat limited Somewhat limited Depth to soft bedrock 0.10 Slope 0.52 25 References American Association of State Highway and Transportation Officials (AASHTG). 2004. Standard specifications for transportation materials and methods of sampling and testing. 24th edition. American Society for Testing and Materials (ASTM). 2005. Standard classification of soils for engineering purposes. ASTM Standard D2487-00. Cowardin, L.M., V. Carter, F.C. Golet, and E.T. LaRoe. 1979. Classification of wetlands and deep -water habitats of the United States. L.S. Fish and Wildlife Service FWS/OBS-79/31. Federal Register. July 13, 1994. Changes in hydric soils of the United States. Federal Register. September 18, 2002. Hydric soils of the United States. Hurt, G.W., and L.M. Vasilas, editors. Version 6.0, 2006. Field indicators of hydric soils in the United States. N ational Research Council. 1995. Wetlands: Characteristics and boundaries. Soil Survey Division Staff. 1993. Soil survey manual. Soil Conservation Service. U .S. Department of Agriculture Handbook 18. http://www.nres.usda.gov/wps!portal/ nres/detail/national/soils/?cid=nres142p2_054262 Soil Survey Staff. 1999. Soil taxonomy: A basic system of soil classification for making and interpreting soil surveys. 2nd edition. Natural Resources Conservation Service, U.S. Department of Agriculture Handbook 436. http:// www.nres. usda.gov/wps/portal/nres/detail/national/soils/?cid=nres142p2_053577 Soil Survey Staff. 2010. Keys to soil taxonomy. 11th edition. U.S. Department of Agriculture, Natural Resources Conservation Service. http:// wvwv.nres. usda.goviwps/portal/nres/detail/national/soils/?cid=nres142p2_053580 Tiner, R.'W., Jr. 1985. Wetlands of Delaware. U.S. Fish and Wildlife Service and Delaware Department of Natural Resources and Environmental Control, Wetlands Section. U nited States Army Corps of Engineers, Environmental Laboratory. 1987. Corps of Engineers wetlands delineation manual. Waterways Experiment Station Technical Report Y-87-1. U nited States Department of Agriculture, Natural Resources Conservation Service. N ational forestry manual. http://wv► w.nres.usda.gov/wps/portal/nres/detail/soils/ home/?cid=nres142p2_053374 U nited States Department of Agriculture, Natural Resources Conservation Service. N ational range and pasture handbook. http://w w.nres.usda.gov/wps/portal/nres/ detail/national/landuse/rangepasture/?cid=stelprdb 1043084 26 Custom Soil Resource Report U nited States Department of Agriculture, Natural Resources Conservation Service. N ational soil survey handbook, title 430 -VI. http://wv.nres.usda.gov/wps/portal/ nres/detail/soilslscientists/'cid=nres1 42p2_054242 United States Department of Agriculture, Natural Resources Conservation Service. 2006. Land resource regions and major land resource areas of the United States, the Caribbean, and the Pacific Basin. U.S. Department of Agriculture Handbook 296. http://www.nrcs.usda.goviwpsiportalinrcsidetailinationalisoilsi? ci d = n res 142 p2_053 024 U nited States Department of Agriculture, Soil Conservation Service. 1961. Land capability classification. U.S. Department of Agriculture Handbook 210. http:// www.nrcs.usda.gov/Internet/FSE DOCUMENTS/nrcs142p2 052290.pdf 27 USDA United States al Department of Agriculture MRCS Natural Resources Conservation Service A product of the National Cooperative Soil Survey, a joint effort of the United States Department of Agriculture and other Federal agencies, State agencies including the Agricultural Experiment Stations, and local participants Custom Soil Resource Report for Weld County, Colorado, Southern Part Pump Station 1 January 12, 2021 Preface Soil surveys contain information that affects land use planning in survey areas. They highlight soil limitations that affect various land uses and provide information about the properties of the soils in the survey areas. Soil surveys are designed for many different users, including farmers, ranchers, foresters, agronomists, urban planners, community officials, engineers, developers, builders, and home buyers. Also, conservationists, teachers, students, and specialists in recreation, waste disposal, and pollution control can use the surveys to help them understand, protect, or enhance the environment. Various land use regulations of Federal, State, and local governments may impose special restrictions on land use or land treatment. Soil surveys identify soil properties that are used in making various land use or land treatment decisions_ The information is intended to help the land users identify and reduce the effects of soil limitations on various land uses. The landowner or user is responsible for identifying and complying with existing laws and regulations. Although soil survey information can be used for general farm, local, and wider area planning, onsite investigation is needed to supplement this information in some cases. Examples include soil quality assessments (http://www.nres.usda.gov/wps/ portal/arcs/main/soils/health/) and certain conservation and engineering applications. For more detailed information, contact your local USDA Service Center (https://offices.sc.egov.usda.gov/locator/app?agency=arcs) or your NRCS State Soil Scientist (http://www.nres.usda.govtwps/portal/nres/detail/soils/contactus/? ci d = n res 142 p2_053951). Great differences in soil properties can occur within short distances. Some soils are seasonally wet or subject to flooding. Some are too unstable to be used as a foundation for buildings or roads. Clayey or wet soils are poorly suited to use as septic tank absorption fields. A high water table makes a soil poorly suited to basements or underground installations. The National Cooperative Soil Survey is a joint effort of the United States Department of Agriculture and other Federal agencies, State agencies including the Agricultural Experiment Stations, and local agencies. The Natural Resources Conservation Service (NRCS) has leadership for the Federal pad of the National Cooperative Soil Survey. Information about soils is updated periodically. Updated information is available through the NRCS Web Soil Survey, the site for official soil survey information. The U.S. Department of Agriculture (USDA) prohibits discrimination in all its programs and activities on the basis of race, color, national origin, age, disability, and where applicable, sex, marital status, familial status, parental status, religion, sexual orientation, genetic information, political beliefs, reprisal, or because all or a part of an individual's income is derived from any public assistance program. (Not all prohibited bases apply to all programs.) Persons with disabilities who require 2 alternative means for communication of program information (Braille, large print, audiotape, etc.) should contact USDA's TARGET Center at (202) 720-2600 (voice and TDD). To file a complaint of discrimination, write to USDA, Director, Office of Civil Rights, 1400 Independence Avenue, S.W., Washington, D.C. 20250-9410 or call (800) 795-3272 (voice) or (202) 720-6382 (TDD). USDA is an equal opportunity provider and employer. 3 Contents Preface 2 How Soil Surveys Are Made..5 Soil Map 8 Soil Map9 Legend 10 Map Unit Legend11 Map Unit Descriptions11 Weld County, Colorado, Southern Part 13 4 Aquolls and Aquepts, flooded..13 13 Cascajo gravelly sandy loam, 5 to 20 percent slopes 14 53 Otero sandy loam, 5 to 9 percent slopes 16 Soil Information for All Uses18 Suitabilities and Limitations for Use 18 Building Site Development18 Small Commercial Buildings (Pump Station 1) 18 Soil Reports23 Building Site Development23 Dwellings and Small Commercial Buildings (Pump Station 1)..23 References.26 4 How Soil Surveys Are Made Soil surveys are made to provide information about the soils and miscellaneous areas in a specific area. They include a description of the soils and miscellaneous areas and their location on the landscape and tables that show soil properties and limitations affecting various uses_ Soil scientists observed the steepness, length, and shape of the slopes; the general pattern of drainage; the kinds of crops and native plants; and the kinds of bedrock. They observed and described many soil profiles_ A soil profile is the sequence of natural layers, or horizons, in a soil. The profile extends from the surface down into the unconsolidated material in which the soil formed or from the surface down to bedrock. The unconsolidated material is devoid of roots and other living organisms and has not been changed by other biological activity. Currently, soils are mapped according to the boundaries of major land resource areas (MLRAs). MLRAs are geographically associated land resource units that share common characteristics related to physiography, geology, climate, water resources, soils, biological resources, and land uses (USDA, 2006). Soil survey areas typically consist of parts of one or more MLRA. The soils and miscellaneous areas in a survey area occur in an orderly pattern that is related to the geology, landforms, relief, climate, and natural vegetation of the area. Each kind of soil and miscellaneous area is associated with a particular kind of landform or with a segment of the landform. By observing the soils and miscellaneous areas in the survey area and relating their position to specific segments of the landform, a soil scientist develops a concept, or model, of how they were formed. Thus, during mapping, this model enables the soil scientist to predict with a considerable degree of accuracy the kind of soil or miscellaneous area at a specific location on the landscape. Commonly, individual soils on the landscape merge into one another as their characteristics gradually change. To construct an accurate soil map, however, soil scientists must determine the boundaries between the soils_ They can observe only a limited number of soil profiles. Nevertheless, these observations, supplemented by an understanding of the soil -vegetation -landscape relationship, are sufficient to verify predictions of the kinds of soil in an area and to determine the boundaries_ Soil scientists recorded the characteristics of the soil profiles that they studied. They noted soil color, texture, size and shape of soil aggregates, kind and amount of rock fragments, distribution of plant roots, reaction, and other features that enable them to identify soils. After describing the soils in the survey area and determining their properties, the soil scientists assigned the soils to taxonomic classes (units). Taxonomic classes are concepts. Each taxonomic class has a set of soil characteristics with precisely defined limits_ The classes are used as a basis for comparison to classify soils systematically. Soil taxonomy, the system of taxonomic classification used in the United States, is based mainly on the kind and character of soil properties and the arrangement of horizons within the profile_ After the soil 5 Custom Soil Resource Report scientists classified and named the soils in the survey area, they► compared the individual soils with similar soils in the same taxonomic class in other areas so that they could confirm data and assemble additional data based on experience and research. The objective of soil mapping is not to delineate pure map unit components; the objective is to separate the landscape into landforms or landform segments that have similar use and management requirements. Each map unit is defined by a unique combination of soil components and/or miscellaneous areas in predictable proportions. Some components may be highly contrasting to the other components of the map unit. The presence of minor components in a map unit in no way diminishes the usefulness or accuracy of the data. The delineation of such landforms and landform segments on the map provides sufficient information for the development of resource plans. If intensive use of small areas is planned, onsite investigation is needed to define and locate the soils and miscellaneous areas. Soil scientists make many field observations in the process of producing a soil map. The frequency of observation is dependent upon several factors, including scale of mapping, intensity of mapping, design of map units, complexity of the landscape, and experience of the soil scientist. Observations are made to test and refine the soil -landscape model and predictions and to verify the classification of the soils at specific locations. Once the soil -landscape model is refined, a significantly smaller number of measurements of individual soil properties are made and recorded. These measurements may include field measurements, such as those for color, depth to bedrock, and texture, and laboratory measurements, such as those for content of sand, silt, clay, salt, and other components. Properties of each soil typically vary from one point to another across the landscape. Observations for map unit components are aggregated to develop ranges of characteristics for the components. The aggregated values are presented. Direct measurements do not exist for every property presented for every map unit component. Values for some properties are estimated from combinations of other properties. While a soil survey is in progress, samples of some of the soils in the area generally are collected for laboratory analyses and for engineering tests. Soil scientists interpret the data from these analyses and tests as well as the field -observed characteristics and the soil properties to determine the expected behavior of the soils under different uses. Interpretations for all of the soils are field tested through observation of the soils in different uses and under different levels of management. Some interpretations are modified to fit local conditions, and some new interpretations are developed to meet local needs. Data are assembled from other sources, such as research information, production records, and field experience of specialists. For example, data on crop yields under defined levels of management are assembled from farm records and from field or plot experiments on the same kinds of soil. Predictions about soil behavior are based not only on soil properties but also on such variables as climate and biological activity. Soil conditions are predictable over long periods of time, but they are not predictable from year to year. For example, soil scientists can predict with a fairly high degree of accuracy that a given soil will have a high water table within certain depths in most years, but they cannot predict that a high water table will always be at a specific level in the soil on a specific date. After soil scientists located and identified the significant natural bodies of soil in the survey area, they drew the boundaries of these bodies on aerial photographs and 6 Custom Soil Resource Report identified each as a specific map unit. Aerial photographs show trees, buildings, fields, roads, and rivers, all of which help in locating boundaries accurately. Soil Map The soil map section includes the soil map for the defined area of interest, a list of soil map units on the map and extent of each map unit, and cartographic symbols displayed on the map. Also presented are various metadata about data used to produce the map, and a description of each soil map unit. 8 40° 20' 57" NJ 0 0 r S 40° 20' 52" N 505330 505350 505370 505390 505330 505350 505370 505390 506410 505430 505450 505470 505490 505510 505530 50.5550 Map Scale: 1:1,120 if printed on A landscape (11" x 8.5") sheet. 0 A 15 30 60 0 50 100 Custom Soil Resource Report Soil Map 505410 200 Meters 90 Feet 300 505430 Map projection: Web Mercator Corner coordinates: WGS84 Edge tics: UTM Zone 13N WGS84 9 505450 505470 505490 505510 505530 505550 1040 56' 4" W 40° 20' 57 N 0 r 0 M1 40° 20' 52" N Custom Soil Resource Report MAP LEGEND Area of Interest (AQI) Area of Interest (AOI) Soils O Soil Map Unit Polygons Soil Map Unit Lines Soil Map Unit Points Special Point Features t, Blowout Borrow Pit Clay Spot Closed Depression Gravel Pit Gravelly Spot Landfill Lava Flow Marsh or swamp Mine or Quarry Miscellaneous Water Perennial Water Rock Outcrop Saline Spot Sandy Spot Severely Eroded Spot Sinkhole Slide or Slip Sodic Spot I 4i a Spoil Area Stony Spot Very Stony Spot Wet Spot Other Special Line Features Water Features Streams and Canals Transportation -1--11—F Rails Interstate Highways US Routes Major Roads Local Roads Background Aerial Photography MAP INFORMATION The soil surveys that comprise your AOI were mapped at 1:24,000. Warning: Soil Map may not be valid at this scale. Enlargement of maps beyond the scale of mapping can cause misunderstanding of the detail of mapping and accuracy of soil line placement. The maps do not show the small areas of contrasting soils that could have been shown at a more detailed scale. Please rely on the bar scale on each map sheet for map measurements. Source of Map: Natural Resources Conservation Service Web Soil Survey URL: Coordinate System: Web Mercator (EPSG:8857) Maps from the Web Soil Survey are based on the Web Mercator projection, which preserves direction and shape but distorts distance and area. A projection that preserves area, such as the Albers equal-area conic projection, should be used if more accurate calculations of distance or area are required. This product is generated from the USDA-NRCS certified data as of the version date(s) listed below. Soil Survey Area: Weld County, Colorado, Southern Part Survey Area Data: Version 19, Jun 5, 2020 Soil map units are labeled (as space allows) for map scales 1:50,000 or larger. Date(s) aerial images were photographed: Aug 11, 2018 —Aug 12, 2018 The orthophoto or other base map on which the soil lines were compiled and digitized probably differs from the background imagery displayed on these maps. As a result, some minor shifting of map unit boundaries may be evident. 10 Custom Soil Resource Report Map Unit Legend Map Unit Symbol Map Unit Name Acres in AOI Percent of AO' 4 Aquolls and Aquepts, flooded 0.1 1.6% 13 Cascajo gravelly sandy loam, 5 to 20 percent slopes 0.7 16.1% 53 Otero sandy loam, 5 to 9 percent slopes 3.7 82.3% Totals for Area of Interest 4.5 100.0% Map Unit Descriptions The map units delineated on the detailed soil maps in a soil survey represent the soils or miscellaneous areas in the survey area. The map unit descriptions, along with the maps, can be used to determine the composition and properties of a unit. A map unit delineation on a soil map represents an area dominated by one or more major kinds of soil or miscellaneous areas. A map unit is identified and named according to the taxonomic classification of the dominant soils. Within a taxonomic class there are precisely defined limits for the properties of the soils. On the landscape, however, the soils are natural phenomena, and they have the characteristic variability of all natural phenomena. Thus, the range of some observed properties may extend beyond the limits defined for a taxonomic class. Areas of soils of a single taxonomic class rarely, if ever, can be mapped without including areas of other taxonomic classes. Consequently, every map unit is made u p of the soils or miscellaneous areas for which it is named and some minor components that belong to taxonomic classes other than those of the major soils. Most minor soils have properties similar to those of the dominant soil or soils in the map unit, and thus they do not affect use and management. These are called n oncontrasting, or similar, components. They may or may not be mentioned in a particular map unit description. Other minor components, however, have properties and behavioral characteristics divergent enough to affect use or to require different management. These are called contrasting, or dissimilar, components. They generally are in small areas and could not be mapped separately because of the scale used. Some small areas of strongly contrasting soils or miscellaneous areas are identified by a special symbol on the maps. If included in the database for a given area, the contrasting minor components are identified in the map unit descriptions along with some characteristics of each. A few areas of minor components may not have been observed, and consequently they are not mentioned in the descriptions, especially where the pattern was so complex that it was impractical to make enough observations to identify all the soils and miscellaneous areas on the landscape. The presence of minor components in a map unit in no way diminishes the u sefulness or accuracy of the data. The objective of mapping is not to delineate pure taxonomic classes but rather to separate the landscape into landforms or landform segments that have similar use and management requirements. The 11 Custom Soil Resource Report delineation of such segments on the map provides sufficient information for the development of resource plans. If intensive use of small areas is planned, however, onsite investigation is needed to define and locate the soils and miscellaneous areas. An identifying symbol precedes the map unit name in the map unit descriptions. Each description includes general facts about the unit and gives important soil properties and qualities. Soils that have profiles that are almost alike make up a soil series. Except for differences in texture of the surface layer, all the soils of a series have major horizons that are similar in composition, thickness, and arrangement. Soils of one series can differ in texture of the surface layer, slope, stoniness, salinity, degree of erosion, and other characteristics that affect their use. On the basis of such differences, a soil series is divided into soil phases. Most of the areas shown on the detailed soil maps are phases of soil series. The name of a soil phase commonly indicates a feature that affects use or management. For example, Alpha silt loam, 0 to 2 percent slopes, is a phase of the Alpha series. Some map units are made up of two or more major soils or miscellaneous areas. These map units are complexes, associations, or undifferentiated groups. A complex consists of two or more soils or miscellaneous areas in such an intricate pattern or in such small areas that they cannot be shown separately on the maps. The pattern and proportion of the soils or miscellaneous areas are somewhat similar in all areas. Alpha -Beta complex, 0 to 6 percent slopes, is an example. An association is made up of two or more geographically associated soils or miscellaneous areas that are shown as one unit on the maps. Because of present or anticipated uses of the map units in the survey area, it was not considered practical or necessary to map the soils or miscellaneous areas separately. The pattern and relative proportion of the soils or miscellaneous areas are somewhat similar. Alpha -Beta association, 0 to 2 percent slopes, is an example. An undifferentiated group is made up of two or more soils or miscellaneous areas that could be mapped individually but are mapped as one unit because similar interpretations can be made for use and management. The pattern and proportion of the soils or miscellaneous areas in a mapped area are not uniform. An area can be made up of only one of the major soils or miscellaneous areas, or it can be made up of all of them. Alpha and Beta soils, 0 to 2 percent slopes, is an example. Some surveys include miscellaneous areas. Such areas have little or no soil material and support little or no vegetation. Rock outcrop is an example. 12 Custom Soil Resource Report Weld County, Colorado, Southern Part 4 Aquolls and Aquepts, flooded Map Unit Setting National map unit symbol: 3621 Elevation: 3,600 to 4,700 feet Mean annual precipitation: 12 to 16 inches Mean annual air temperature: 50 to 55 degrees F Frost -free period: 100 to 165 days Farmland classification: Prime farmland if drained and either protected from flooding or not frequently flooded during the growing season Map Unit Composition Aquolls and similar soils: 55 percent Aquepts, flooded, and similar soils: 25 percent Minor components: 20 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Aquolls Setting Landform: Drainageways, plains, depressions Down -slope shape: Linear Across -slope shape: Linear Parent material: Recent alluvium Typical profile Hi - 0 to 8 inches: variable H2 - 8 to 60 inches: stratified sandy loam to clay Properties and qualities Slope: 0 to 3 percent Depth to restrictive feature: More than 80 inches Drainage class: Poorly drained Runoff class: Very low capacity of the most limiting layer to transmit water ('Ksat): Moderately low to high (0.06 to 6.00 inlhr) Depth to water table: About 6 to 36 inches Frequency of flooding: FrequentNone Frequency of ponding: None Calcium carbonate, maximum content: 10 percent Maximum salinity: Moderately saline to strongly saline (8.0 to 16.0 mmhoslcm) Sodium adsorption ratio, maximum: 5.0 Available water capacity: Low (about 4.7 inches) Interpretive groups Land capability classification (irrigated): 6w Land capability classification (nonirrigated): 6w Hydrologic Soil Group: D Ecological site: R057BY085cO - Salt Meadow Hydric soil rating: Yes 13 Custom Soil Resource Report Description of Aquepts, Flooded Setting Landform: Stream terraces Down -slope shape: Linear Across -slope shape: Linear Parent material: Recent alluvium Typical profile HI - 0 to 8 inches: variable H2 - 8 to 60 inches: stratified sandy loam to clay Properties and qualities Slope: 0 to 3 percent Depth to restrictive feature: More than 80 inches Drainage class: Poorly drained Runoff class: Very low capacity of the most limiting layer to transmit water (Ksat): Moderately low to high (0.06 to 6.00 in/hr) Depth to water table: About 6 to 36 inches Frequency of flooding: FrequentNone Frequency of ponding: None Calcium carbonate, maximum content: 10 percent Maximum salinity: Moderately saline to strongly saline (8.0 to 16.0 mmhoslcm) Sodium adsorption ratio, maximum: 5.0 Available water capacity: Low (about 4.7 inches) Interpretive groups Land capability classification (irrigated): 6w Land capability classification (nonirrigated): 6w Hydrologic Soil Group: D Ecological site: R067BY038CO - Wet Meadow Hydric soil rating: Yes Minor Components Haverson Percent of map unit: 10 percent Hydric soil rating: No Thedalund Percent of map unit: 10 percent Hydric soil rating: No 13 Cascajo gravelly sandy loam, 5 to 20 percent slopes Map Unit Setting National map unit symbol: 361 n Elevation: 4,600 to 5,200 feet Mean annual precipitation: 11 to 13 inches 14 Custom Soil Resource Report Mean annual air temperature: 52 to 54 degrees F Frost -free period: 120 to 160 days Farmland classification: Not prime farmland Map Unit Composition Cascajo and similar soils: 85 percent Minor components: 15 percent Estimates are based on observations, descriptions, and transacts of the mapunit. Description of Cascajo Setting Landform: Ridges, terraces Down -slope shape: Linear Across -slope shape: Linear Parent material: Calcareous gravelly alluvium Typical profile H9 - 0 to 9 inches: gravelly sandy loam H2 - 9 to 31 inches: extremely gravelly sandy loam H3 - 31 to 60 inches: very gravelly sand Properties and qualities Slope: 5 to 20 percent Depth to restrictive feature: More than 80 inches Drainage class: Excessively drained Runoff class: Low Capacity of the most limiting layer to transmit water (sat): High (2.00 to 6.00 in/hr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Calcium carbonate, maximum content: 25 percent Maximum salinity: Nonsaline to very slightly saline (0.0 to 2.0 mmhoslcm) Available water capacity: Low (about 4.1 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): Is Hydrologic Soil Group: A Ecological site: 8007 BY058 0 - Gravel Breaks Hydric soil rating: No Minor Components Renohill Percent of map unit: 8 percent Hydric soil rating: No Samsil Percent of map unit: 7 percent Hydric soil rating: No Custom Soil Resource Report 53 Otero sandy loam, 5 to 9 percent slopes Map Unit Setting National map unit symbol: 3632 Elevation: 4,700 to 5,250 feet Mean annual precipitation: 12 to 15 inches Mean annual air temperature: 48 to 52 degrees F Frost -free period: 130 to 180 days Farmland classification: Not prime farmland Map Unit Composition Otero and similar soils: 85 percent Minor components: 15 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Otero Setting Landform: Plains Down -slope shape: Linear Across -slope shape: Linear Parent material: Eolian deposits and/or mixed outwash Typical profile H1 - 0 to 12 inches: sandy loam H2 - 12 to 60 inches: fine sandy loam Properties and qualities Slope: 5 to 9 percent Depth to restrictive feature: More than 80 inches Drainage class: Well drained Runoff class: Low Capacity of the most limiting layer to transmit water (Ksat): Moderately high to high (0.57 to 5.95 inlhr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Calcium carbonate, maximum content: 10 percent Maximum salinity: Nonsaline to slightly saline (0.0 to 4.0 mmhoslcm) Available water capacity: Moderate (about 7.7 inches) Interpretive groups Land capability classification (irrigated): 4e Land capability classification (nonirrigated): 6e Hydrologic Soil Group. A Ecological site: R067BY024CO - Sandy Plains Hydric soil rating: No Custom Soil Resource Report Minor Components Kim Percent of map unit: 10 percent Hydric soil rating: No Cushman Percent of map unit: 5 percent Hydric soil rating: No Soil Information for All Uses Suitabilities and Limitations for Use The Suitabilities and Limitations for Use section includes various soil interpretations displayed as thematic maps with a summary table for the soil map units in the selected area of interest. A single value or rating for each map unit is generated by aggregating the interpretive ratings of individual map unit components. This aggregation process is defined for each interpretation. Building Site Development Building site development interpretations are designed to be used as tools for evaluating soil suitability and identifying soil limitations for various construction purposes. As part of the interpretation process, the rating applies to each soil in its described condition and does not consider present land use. Example interpretations can include corrosion of concrete and steel, shallow excavations, dwellings with and without basements, small commercial buildings, local roads and streets, and lawns and landscaping. Small Commercial Buildings (Pump Station 1) Small commercial buildings are structures that are less than three stories high and do not have basements. The foundation is assumed to consist of spread footings of reinforced concrete built on undisturbed soil at a depth of 2 feet or at the depth of maximum frost penetration, whichever is deeper. The ratings are based on the soil properties that affect the capacity of the soil to support a load without movement and on the properties that affect excavation and construction costs. The properties that affect the load -supporting capacity include depth to a water table, ponding, flooding, subsidence, linear extensibility (shrink -swell potential), and compressibility (which is inferred from the Unified classification of the soil). The properties that affect the ease and amount of excavation include flooding, depth to a water table, ponding, slope, depth to bedrock or a cemented pan, hardness of bedrock or a cemented pan, and the amount and size of rock fragments. The ratings are both verbal and numerical. Rating class terms indicate the extent to which the soils are limited by all of the soil features that affect the specified use. "Not limited" indicates that the soil has features that are very favorable for the specified use. Good performance and very low maintenance can be expected. 18 Custom Soil Resource Report "Somewhat limited" indicates that the soil has features that are moderately favorable for the specified use. The limitations can be overcome or minimized by special planning, design, or installation. Fair performance and moderate maintenance can be expected. "Very limited" indicates that the soil has one or more features that are unfavorable for the specified use. The limitations generally cannot be overcome without major soil reclamation, special design, or expensive installation procedures. Poor performance and high maintenance can be expected. Numerical ratings indicate the severity of individual limitations. The ratings are shown as decimal fractions ranging from 0.01 to 1.00. They indicate gradations between the point at which a soil feature has the greatest negative impact on the use (1.00) and the point at which the soil feature is not a limitation (0.00). The map unit components listed for each map unit in the accompanying Summary by Map Unit table in Web Soil Survey or the Aggregation Report in Soil Data Viewer are determined by the aggregation method chosen. An aggregated rating class is shown for each map unit. The components listed for each map unit are only those that have the same rating class as listed for the map unit. The percent composition of each component in a particular map unit is presented to help the user better understand the percentage of each map unit that has the rating presented. Other components with different ratings may be present in each map unit. The ratings for all components, regardless of the map unit aggregated rating, can be viewed by generating the equivalent report from the Soil Reports tab in Web Soil Survey or from the Soil Data Mart site. Onsite investigation may be needed to validate these interpretations and to confirm the identity of the soil on a given site. 19 cLesilAU Lt" rap r . / i- : . LysPda)U.I1 Custom Soil Resource Report MAP LEGEND Area of Interest (Aol) Area of Interest (A0l) Soils Soil Rating Polygons Very limited Somewhat limited Not limited Not rated or not available Soil Rating Lines ,,,.+ Very limited - Somewhat limited .rmt Not limited r • Not rated or not available Soil Rating Points • a 0 Very limited Somewhat limited Not limited O Not rated or not available Water Features Streams and Canals Transportation 4r —f-+ retool Rails Interstate Highways US Routes Major Roads Local Roads Background Aerial Photography MAP INFORMATION The soil surveys that comprise your AOl were mapped at 1:24,000. Warning: Soil Map may not be valid at this scale. Enlargement of maps beyond the scale of mapping can cause misunderstanding of the detail of mapping and accuracy of soil line placement. The maps do not show the small areas of contrasting soils that could have been shown at a more detailed scale. Please rely on the bar scale on each map sheet for map measurements. Source of Map: Natural Resources Conservation Service Web Soil Survey URL: Coordinate System: Web Mercator (EPSG:8857) Maps from the Web Soil Survey are based on the Web Mercator projection, which preserves direction and shape but distorts distance and area. A projection that preserves area, such as the Albers equal-area conic projection, should be used if more accurate calculations of distance or area are required. This product is generated from the USDA-NRCS certified data as of the version date(s) listed below. Soil Survey Area: Weld County, Colorado, Southern Part Survey Area Data: Version 19, Jun 5, 2020 Soil map units are labeled (as space allows) for map scales 1:50,000 or larger. Date(s) aerial images were photographed: Aug 11, 2018 —Aug 12, 2018 The orthophoto or other base map on which the soil lines were compiled and digitized probably differs from the background imagery displayed on these maps. As a result, some minor shifting of map unit boundaries may be evident. 21 Custom Soil Resource Report Tables Small Commercial Buildings (Pump Station 1) Map unit symbol Map unit name Rating Component name (percent) Rating reasons (numeric values) Acres in AOI Percent of AOI 4 Aquolls and Aquepts, flooded Very limited Aquolls (55%) Flooding (1.00) 0.1 1.6% depth to saturated (0.81) zone Shrink -swell (0.50) Aquepts, flooded Flooding (1.00) (25%) Depth to saturated (0.81) zone Shrink -swell (0.50) 13 Cascajo gravelly sandy loam, 5 to 20 percent slopes Very limited Cascajo (85%) Slope (1.00) 0.7 16.1% 53 Otero sandy loam, 5 to 9 percent slopes Somewhat limited Otero (85%) Slope (0.88) 3.7 82.3% Totals for Area of Interest 4.5 100.0% Rating Acres in AOI Percent of AOI Somewhat limited 3.7 82.3% Very limited 0.8 17.7% Totals for Area of Interest 4.5 100.0% Rating Options Small Commercial Buildings (Pump Station 1) Aggregation Method: Dominant Condition Component Percent Cutoff. None Specified Tie -break Rule: Higher 22 Custom Soil Resource Report Soil Reports The Soil Reports section includes various formatted tabular and narrative reports (tables) containing data for each selected soil map unit and each component of each unit. No aggregation of data has occurred as is done in reports in the Soil Properties and Qualities and Suitabilities and Limitations sections. The reports contain soil interpretive information as well as basic soil properties and qualities. A description of each report (table) is included. Building Site Development This folder contains a collection of tabular reports that present soil interpretations related to building site development. The reports (tables) include all selected map units and components for each map unit, limiting features and interpretive ratings. Building site development interpretations are designed to be used as tools for evaluating soil suitability and identifying soil limitations for various construction purposes. As part of the interpretation process, the rating applies to each soil in its described condition and does not consider present land use. Example interpretations can include corrosion of concrete and steel, shallow excavations, dwellings with and without basements, small commercial buildings, local roads and streets, and lawns and landscaping. Dwellings and Small Commercial Buildings (Pump Station 1) Soil properties influence the development of building sites, including the selection of the site, the design of the structure, construction, performance after construction, and maintenance. This table shows the degree and kind of soil limitations that affect dwellings and small commercial buildings. The ratings in the table are both verbal and numerical. Rating class terms indicate the extent to which the soils are limited by all of the soil features that affect building site development. Not limited indicates that the soil has features that are very favorable for the specified use. Good performance and very low maintenance can be expected. Somewhat limited indicates that the soil has features that are moderately favorable for the specified use. The limitations can be overcome or minimized by special planning, design, or installation. Fair performance and moderate maintenance can be expected. Very limited indicates that the soil has one or more features that are unfavorable for the specified use. The limitations generally cannot be overcome without major soil reclamation, special design, or expensive installation procedures. Poor performance and high maintenance can be expected. Numerical ratings in the table indicate the severity of individual limitations. The ratings are shown as decimal fractions ranging from 0.01 to 1.00. They indicate gradations between the point at which a soil feature has the greatest negative impact on the use (1.00) and the point at which the soil feature is not a limitation (0.00). 23 Custom Soil Resource Report Dwellings are single-family houses of three stories or less. For dwellings without basements, the foundation is assumed to consist of spread footings of reinforced concrete built on undisturbed soil at a depth of 2 feet or at the depth of maximum frost penetration, whichever is deeper. For dwellings with basements, the foundation is assumed to consist of spread footings of reinforced concrete built on undisturbed soil at a depth of about 7 feet. The ratings for dwellings are based on the soil properties that affect the capacity of the soil to support a load without movement and on the properties that affect excavation and construction costs. The properties that affect the load -supporting capacity include depth to a water table, ponding, flooding, subsidence, linear extensibility (shrink -swell potential), and compressibility. Compressibility is inferred from the Unified classification. The properties that affect the ease and amount of excavation include depth to a water table, ponding, flooding, slope, depth to bedrock or a cemented pan, hardness of bedrock or a cemented pan, and the amount and size of rock fragments. Small commercial buildings are structures that are less than three stories high and do not have basements. The foundation is assumed to consist of spread footings of reinforced concrete built on undisturbed soil at a depth of 2 feet or at the depth of maximum frost penetration, whichever is deeper. The ratings are based on the soil properties that affect the capacity of the soil to support a load without movement and on the properties that affect excavation and construction costs. The properties that affect the load -supporting capacity include depth to a water table, ponding, flooding, subsidence, linear extensibility (shrink -swell potential), and compressibility (which is inferred from the Unified classification). The properties that affect the ease and amount of excavation include flooding, depth to a water table, ponding, slope, depth to bedrock or a cemented pan, hardness of bedrock or a cemented pan, and the amount and size of rock fragments. Information in this table is intended for land use planning, for evaluating land use alternatives, and for planning site investigations prior to design and construction. The information, however, has limitations. For example, estimates and other data generally apply only to that part of the soil between the surface and a depth of 5 to 7 feet. Because of the map scale, small areas of different soils may be included within the mapped areas of a specific soil. The information is not site specific and does not eliminate the need for onsite investigation of the soils or for testing and analysis by personnel experienced in the design and construction of engineering works. Government ordinances and regulations that restrict certain land uses or impose specific design criteria were not considered in preparing the information in this table. Local ordinances and regulations should be considered in planning, in site selection, and in design. Report —Dwellings and Small Commercial Buildings (Pump Station 1) [onsite investigation may be needed to validate the interpretations in this table and to confirm the identity of the soil on a given site. The numbers in the value columns range from 0.01 to 1.00. The larger the value, the greater the potential limitation. The table shows only the top five limitations for any given soil. The soil may have additional limitations] 24 Custom Soil Resource Report Dwellings and Small Commercial Buildings -Weld County, Colorado, Southern Part Map symbol and soil name Pct. map unit of Dwellings without basements Dwellings with basements Small commercial buildings Rating limiting class and features Value Rating class limiting and features Value Rating class and limiting features Value 4—Aquolls and flooded Aquepts, Aquolls 55 Very limited Very limited Very limited Flooding 1.00 Flooding 1.00 Flooding 1.00 Depth to saturated zone 0.81 Depth to saturated zone 1.00 Depth to saturated zone 0.81 Shrink -swell 0.50 Shrink -swell 0.50 Shrink -swell 0.50 Aquepts, flooded 25 Very limited Very limited Very limited Flooding 1.00 Flooding 1.00 Flooding 1.00 Depth to saturated zone 0.81 Depth to saturated zone IMO Depth to saturated zone 0.81 Shrink -swell 0.50 Shrink -swell 0.50 Shrink -swell 0.50 18—Cascajo gravelly sandy loam, 5 to 20 percent slopes Cascajo 85 Somewhat limited Somewhat limited Very limited Slope 0.84 Slope 0.84 Slope 1.00 53 Otero sandy 5 to 9 percent loam, slopes Otero 85 Not limited Not limited Somewhat limited Slope 0.88 25 References American Association of State Highway and Transportation Officials (AASHTG). 2004. Standard specifications for transportation materials and methods of sampling and testing. 24th edition. American Society for Testing and Materials (ASTM). 2005. Standard classification of soils for engineering purposes. ASTM Standard D2487-00. Cowardin, L.M., V. Carter, F.C. Golet, and E.T. LaRoe. 1979. Classification of wetlands and deep -water habitats of the United States. L.S. Fish and Wildlife Service FWS/OBS-79/31. Federal Register. July 13, 1994. Changes in hydric soils of the United States. Federal Register. September 18, 2002. Hydric soils of the United States. Hurt, G.W., and L.M. Vasilas, editors. Version 6.0, 2006. Field indicators of hydric soils in the United States. N ational Research Council. 1995. Wetlands: Characteristics and boundaries. Soil Survey Division Staff. 1993. Soil survey manual. Soil Conservation Service. U .S. Department of Agriculture Handbook 18. http://www.nres.usda.gov/wps!portal/ nres/detail/national/soils/?cid=nres142p2_054262 Soil Survey Staff. 1999. Soil taxonomy: A basic system of soil classification for making and interpreting soil surveys. 2nd edition. Natural Resources Conservation Service, U.S. Department of Agriculture Handbook 436. http:// www.nres. usda.gov/wps/portal/nres/detail/national/soils/?cid=nres142p2_053577 Soil Survey Staff. 2010. Keys to soil taxonomy. 11th edition. U.S. Department of Agriculture, Natural Resources Conservation Service. http:// wvwv.nres. usda.goviwps/portal/nres/detail/national/soils/?cid=nres142p2_053580 Tiner, R.'W., Jr. 1985. Wetlands of Delaware. U.S. Fish and Wildlife Service and Delaware Department of Natural Resources and Environmental Control, Wetlands Section. U nited States Army Corps of Engineers, Environmental Laboratory. 1987. Corps of Engineers wetlands delineation manual. Waterways Experiment Station Technical Report Y-87-1. U nited States Department of Agriculture, Natural Resources Conservation Service. N ational forestry manual. http://wv► w.nres.usda.gov/wps/portal/nres/detail/soils/ home/?cid=nres142p2_053374 U nited States Department of Agriculture, Natural Resources Conservation Service. N ational range and pasture handbook. http://w w.nres.usda.gov/wps/portal/nres/ detail/national/landuse/rangepasture/?cid=stelprdb 1043084 26 Custom Soil Resource Report U nited States Department of Agriculture, Natural Resources Conservation Service. N ational soil survey handbook, title 430 -VI. http://wv.nres.usda.gov/wps/portal/ nres/detail/soilslscientists/'cid=nres1 42p2_054242 United States Department of Agriculture, Natural Resources Conservation Service. 2006. Land resource regions and major land resource areas of the United States, the Caribbean, and the Pacific Basin. U.S. Department of Agriculture Handbook 296. http://www.nrcs.usda.goviwpsiportalinrcsidetailinationalisoilsi? ci d = n res 142 p2_053 024 U nited States Department of Agriculture, Soil Conservation Service. 1961. Land capability classification. U.S. Department of Agriculture Handbook 210. http:// www.nrcs.usda.gov/Internet/FSE DOCUMENTS/nrcs142p2 052290.pdf 27 USDA United States al Department of Agriculture MRCS Natural Resources Conservation Service A product of the National Cooperative Soil Survey, a joint effort of the United States Department of Agriculture and other Federal agencies, State agencies including the Agricultural Experiment Stations, and local participants Custom Soil Resource Report for Weld County, Colorado, Southern Part Pump Station 2 January 12, 2021 Preface Soil surveys contain information that affects land use planning in survey areas. They highlight soil limitations that affect various land uses and provide information about the properties of the soils in the survey areas. Soil surveys are designed for many different users, including farmers, ranchers, foresters, agronomists, urban planners, community officials, engineers, developers, builders, and home buyers. Also, conservationists, teachers, students, and specialists in recreation, waste disposal, and pollution control can use the surveys to help them understand, protect, or enhance the environment. Various land use regulations of Federal, State, and local governments may impose special restrictions on land use or land treatment. Soil surveys identify soil properties that are used in making various land use or land treatment decisions_ The information is intended to help the land users identify and reduce the effects of soil limitations on various land uses. The landowner or user is responsible for identifying and complying with existing laws and regulations. Although soil survey information can be used for general farm, local, and wider area planning, onsite investigation is needed to supplement this information in some cases. Examples include soil quality assessments (http://www.nres.usda.gov/wps/ portal/arcs/main/soils/health/) and certain conservation and engineering applications. For more detailed information, contact your local USDA Service Center (https://offices.sc.egov.usda.gov/locator/app?agency=arcs) or your NRCS State Soil Scientist (http://www.nres.usda.govtwps/portal/nres/detail/soils/contactus/? ci d = n res 142 p2_053951). Great differences in soil properties can occur within short distances. Some soils are seasonally wet or subject to flooding. Some are too unstable to be used as a foundation for buildings or roads. Clayey or wet soils are poorly suited to use as septic tank absorption fields. A high water table makes a soil poorly suited to basements or underground installations. The National Cooperative Soil Survey is a joint effort of the United States Department of Agriculture and other Federal agencies, State agencies including the Agricultural Experiment Stations, and local agencies. The Natural Resources Conservation Service (NRCS) has leadership for the Federal pad of the National Cooperative Soil Survey. Information about soils is updated periodically. Updated information is available through the NRCS Web Soil Survey, the site for official soil survey information. The U.S. Department of Agriculture (USDA) prohibits discrimination in all its programs and activities on the basis of race, color, national origin, age, disability, and where applicable, sex, marital status, familial status, parental status, religion, sexual orientation, genetic information, political beliefs, reprisal, or because all or a part of an individual's income is derived from any public assistance program. (Not all prohibited bases apply to all programs.) Persons with disabilities who require 2 alternative means for communication of program information (Braille, large print, audiotape, etc.) should contact USDA's TARGET Center at (202) 720-2600 (voice and TDD). To file a complaint of discrimination, write to USDA, Director, Office of Civil Rights, 1400 Independence Avenue, S.W., Washington, D.C. 20250-9410 or call (800) 795-3272 (voice) or (202) 720-6382 (TDD). USDA is an equal opportunity provider and employer. 3 Contents Preface 2 How Soil Surveys Are Made..5 Soil Map 8 Soil Map9 Legend 10 Map Unit Legend11 Map Unit Descriptions11 Weld County, Colorado, Southern Part 13 67 Ulm clay loam, 3 to 5 percent slopes.13 Soil Information for All Uses15 Suitabilities and Limitations for Use 15 Building Site Development15 Small Commercial Buildings (Pump Station 2) 15 Soil Reports20 Building Site Development20 Dwellings and Small Commercial Buildings (Pump Station 2)..20 References.23 4 How Soil Surveys Are Made Soil surveys are made to provide information about the soils and miscellaneous areas in a specific area. They include a description of the soils and miscellaneous areas and their location on the landscape and tables that show soil properties and limitations affecting various uses_ Soil scientists observed the steepness, length, and shape of the slopes; the general pattern of drainage; the kinds of crops and native plants; and the kinds of bedrock. They observed and described many soil profiles_ A soil profile is the sequence of natural layers, or horizons, in a soil. The profile extends from the surface down into the unconsolidated material in which the soil formed or from the surface down to bedrock. The unconsolidated material is devoid of roots and other living organisms and has not been changed by other biological activity. Currently, soils are mapped according to the boundaries of major land resource areas (MLRAs). MLRAs are geographically associated land resource units that share common characteristics related to physiography, geology, climate, water resources, soils, biological resources, and land uses (USDA, 2006). Soil survey areas typically consist of parts of one or more MLRA. The soils and miscellaneous areas in a survey area occur in an orderly pattern that is related to the geology, landforms, relief, climate, and natural vegetation of the area. Each kind of soil and miscellaneous area is associated with a particular kind of landform or with a segment of the landform. By observing the soils and miscellaneous areas in the survey area and relating their position to specific segments of the landform, a soil scientist develops a concept, or model, of how they were formed. Thus, during mapping, this model enables the soil scientist to predict with a considerable degree of accuracy the kind of soil or miscellaneous area at a specific location on the landscape. Commonly, individual soils on the landscape merge into one another as their characteristics gradually change. To construct an accurate soil map, however, soil scientists must determine the boundaries between the soils_ They can observe only a limited number of soil profiles. Nevertheless, these observations, supplemented by an understanding of the soil -vegetation -landscape relationship, are sufficient to verify predictions of the kinds of soil in an area and to determine the boundaries_ Soil scientists recorded the characteristics of the soil profiles that they studied. They noted soil color, texture, size and shape of soil aggregates, kind and amount of rock fragments, distribution of plant roots, reaction, and other features that enable them to identify soils. After describing the soils in the survey area and determining their properties, the soil scientists assigned the soils to taxonomic classes (units). Taxonomic classes are concepts. Each taxonomic class has a set of soil characteristics with precisely defined limits_ The classes are used as a basis for comparison to classify soils systematically. Soil taxonomy, the system of taxonomic classification used in the United States, is based mainly on the kind and character of soil properties and the arrangement of horizons within the profile_ After the soil 5 Custom Soil Resource Report scientists classified and named the soils in the survey area, they► compared the individual soils with similar soils in the same taxonomic class in other areas so that they could confirm data and assemble additional data based on experience and research. The objective of soil mapping is not to delineate pure map unit components; the objective is to separate the landscape into landforms or landform segments that have similar use and management requirements. Each map unit is defined by a unique combination of soil components and/or miscellaneous areas in predictable proportions. Some components may be highly contrasting to the other components of the map unit. The presence of minor components in a map unit in no way diminishes the usefulness or accuracy of the data. The delineation of such landforms and landform segments on the map provides sufficient information for the development of resource plans. If intensive use of small areas is planned, onsite investigation is needed to define and locate the soils and miscellaneous areas. Soil scientists make many field observations in the process of producing a soil map. The frequency of observation is dependent upon several factors, including scale of mapping, intensity of mapping, design of map units, complexity of the landscape, and experience of the soil scientist. Observations are made to test and refine the soil -landscape model and predictions and to verify the classification of the soils at specific locations. Once the soil -landscape model is refined, a significantly smaller number of measurements of individual soil properties are made and recorded. These measurements may include field measurements, such as those for color, depth to bedrock, and texture, and laboratory measurements, such as those for content of sand, silt, clay, salt, and other components. Properties of each soil typically vary from one point to another across the landscape. Observations for map unit components are aggregated to develop ranges of characteristics for the components. The aggregated values are presented. Direct measurements do not exist for every property presented for every map unit component. Values for some properties are estimated from combinations of other properties. While a soil survey is in progress, samples of some of the soils in the area generally are collected for laboratory analyses and for engineering tests. Soil scientists interpret the data from these analyses and tests as well as the field -observed characteristics and the soil properties to determine the expected behavior of the soils under different uses. Interpretations for all of the soils are field tested through observation of the soils in different uses and under different levels of management. Some interpretations are modified to fit local conditions, and some new interpretations are developed to meet local needs. Data are assembled from other sources, such as research information, production records, and field experience of specialists. For example, data on crop yields under defined levels of management are assembled from farm records and from field or plot experiments on the same kinds of soil. Predictions about soil behavior are based not only on soil properties but also on such variables as climate and biological activity. Soil conditions are predictable over long periods of time, but they are not predictable from year to year. For example, soil scientists can predict with a fairly high degree of accuracy that a given soil will have a high water table within certain depths in most years, but they cannot predict that a high water table will always be at a specific level in the soil on a specific date. After soil scientists located and identified the significant natural bodies of soil in the survey area, they drew the boundaries of these bodies on aerial photographs and 6 Custom Soil Resource Report identified each as a specific map unit. Aerial photographs show trees, buildings, fields, roads, and rivers, all of which help in locating boundaries accurately. Soil Map The soil map section includes the soil map for the defined area of interest, a list of soil map units on the map and extent of each map unit, and cartographic symbols displayed on the map. Also presented are various metadata about data used to produce the map, and a description of each soil map unit. 8 tri 40° 0'7'N 508080 I 508080 508110 508140 508170 508200 508230 508140 508170 Custom Soil Resource Report Soil Map 508230 N A Map Scale: 1:1,510 if printed on A landscape (11" x 8.5") sheet. 0 20 40 80 Meters 120 Feet 0 50 100 2100 300 Map projection: Web Mercator Corner coordinates: WGS84 Edge tics: UTM Zone 13N WGS84 9 5)8260 508320 508260 533380 508290 508320 508350 508380 } Ln 0 c‘J „c_ X10° 0'7"N ° 0'0"N Custom Soil Resource Report MAP LEGEND Area of Interest (AQI) Area of Interest (AOI) Soils O Soil Map Unit Polygons Soil Map Unit Lines Soil Map Unit Points Special Point Features t, Blowout Borrow Pit Clay Spot Closed Depression Gravel Pit Gravelly Spot Landfill Lava Flow Marsh or swamp Mine or Quarry Miscellaneous Water Perennial Water Rock Outcrop Saline Spot Sandy Spot Severely Eroded Spot Sinkhole Slide or Slip Sodic Spot I 4i a Spoil Area Stony Spot Very Stony Spot Wet Spot Other Special Line Features Water Features Streams and Canals Transportation -1--11—F Rails Interstate Highways US Routes Major Roads Local Roads Background Aerial Photography MAP INFORMATION The soil surveys that comprise your AOI were mapped at 1:24,000. Warning: Soil Map may not be valid at this scale. Enlargement of maps beyond the scale of mapping can cause misunderstanding of the detail of mapping and accuracy of soil line placement. The maps do not show the small areas of contrasting soils that could have been shown at a more detailed scale. Please rely on the bar scale on each map sheet for map measurements. Source of Map: Natural Resources Conservation Service Web Soil Survey URL: Coordinate System: Web Mercator (EPSG:3857) Maps from the Web Soil Survey are based on the Web Mercator projection, which preserves direction and shape but distorts distance and area. A projection that preserves area, such as the Albers equal-area conic projection, should be used if more accurate calculations of distance or area are required. This product is generated from the USDA-NRCS certified data as of the version date(s) listed below. Soil Survey Area: Weld County, Colorado, Southern Part Survey Area Data: Version 19, Jun 5, 2020 Soil map units are labeled (as space allows) for map scales 1:50,000 or larger. Date(s) aerial images were photographed: Oct 3, 2018 Dec 4, 2018 The orthophoto or other base map on which the soil lines were compiled and digitized probably differs from the background imagery displayed on these maps. As a result, some minor shifting of map unit boundaries may be evident. 10 Custom Soil Resource Report Map Unit Legend Map Unit Symbol Map Unit Name Acres in Aol Percent of AO' 67 Ulm clay loam, 3 to 5 percent slopes 8.6 100.0% Totals for Area of Interest 8.6 100.0% Map Unit Descriptions The map units delineated on the detailed soil maps in a soil survey represent the soils or miscellaneous areas in the survey area. The map unit descriptions, along with the maps, can be used to determine the composition and properties of a unit. A map unit delineation on a soil map represents an area dominated by one or more major kinds of soil or miscellaneous areas. A map unit is identified and named according to the taxonomic classification of the dominant soils. Within a taxonomic class there are precisely defined limits for the properties of the soils. On the landscape, however, the soils are natural phenomena, and they have the characteristic variability of all natural phenomena. Thus, the range of some observed properties may extend beyond the limits defined for a taxonomic class. Areas of soils of a single taxonomic class rarely, if ever, can be mapped without including areas of other taxonomic classes_ Consequently, every map unit is made u p of the soils or miscellaneous areas for which it is named and some minor components that belong to taxonomic classes other than those of the major soils. Most minor soils have properties similar to those of the dominant soil or soils in the map unit, and thus they do not affect use and management. These are called n oncontrasting, or similar, components. They may or may not be mentioned in a particular map unit description. Other minor components, however, have properties and behavioral characteristics divergent enough to affect use or to require different management. These are called contrasting, or dissimilar, components. They generally are in small areas and could not be mapped separately because of the scale used. Some small areas of strongly contrasting soils or miscellaneous areas are identified by a special symbol on the maps. If included in the database for a given area, the contrasting minor components are identified in the map unit descriptions along with some characteristics of each. A few areas of minor components may not have been observed, and consequently they are not mentioned in the descriptions, especially where the pattern was so complex that it was impractical to make enough observations to identify all the soils and miscellaneous areas on the landscape. The presence of minor components in a map unit in no way diminishes the u sefulness or accuracy of the data. The objective of mapping is not to delineate pure taxonomic classes but rather to separate the landscape into landforms or landform segments that have similar use and management requirements. The delineation of such segments on the map provides sufficient information for the development of resource plans. If intensive use of small areas is planned, however, onsite investigation is needed to define and locate the soils and miscellaneous areas. 11 Custom Soil Resource Report An identifying symbol precedes the map unit name in the map unit descriptions. Each description includes general facts about the unit and gives important soil properties and qualities. Soils that have profiles that are almost alike make up a soil series. Except for differences in texture of the surface layer, all the soils of a series have major horizons that are similar in composition, thickness, and arrangement. Soils of one series can differ in texture of the surface layer, slope, stoniness, salinity, degree of erosion, and other characteristics that affect their use. On the basis of such differences, a soil series is divided into soil phases. Most of the areas shown on the detailed soil maps are phases of soil series. The name of a soil phase commonly indicates a feature that affects use or management. For example, Alpha silt loam, 0 to 2 percent slopes, is a phase of the Alpha series. Some map units are made up of two or more major soils or miscellaneous areas. These map units are complexes, associations, or undifferentiated groups. A complex consists of two or more soils or miscellaneous areas in such an intricate pattern or in such small areas that they cannot be shown separately on the maps. The pattern and proportion of the soils or miscellaneous areas are somewhat similar in all areas. Alpha -Beta complex, 0 to 6 percent slopes, is an example. An association is made up of two or more geographically associated soils or miscellaneous areas that are shown as one unit on the maps. Because of present or anticipated uses of the map units in the survey area, it was not considered practical or necessary to map the soils or miscellaneous areas separately. The pattern and relative proportion of the soils or miscellaneous areas are somewhat similar. Alpha -Beta association, 0 to 2 percent slopes, is an example. An undifferentiated group is made up of two or more soils or miscellaneous areas that could be mapped individually but are mapped as one unit because similar interpretations can be made for use and management. The pattern and proportion of the soils or miscellaneous areas in a mapped area are not uniform. An area can be made up of only one of the major soils or miscellaneous areas, or it can be made up of all of them. Alpha and Beta soils, 0 to 2 percent slopes, is an example. Some surveys include miscellaneous areas. Such areas have little or no soil material and support little or no vegetation. Rock outcrop is an example. 12 Custom Soil Resource Report Weld County, Colorado, Southern Part 67 Ulm clay loam, 3 to 5 percent slopes Map Unit Setting National map unit symbol: 363k Elevation: 5,070 to 5,200 feet Mean annual precipitation: 13 to 15 inches Mean annual air temperature: 46 to 48 degrees F Frost -free period: 105 to 120 days Farmland classification: Farmland of statewide importance Map Unit Composition Ulm and similar soils: 85 percent Minor components: 15 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Ulm Setting Landform: Plains Down -slope shape: Linear Across -slope shape: Linear Parent material: Alluvium and/or eolian deposits derived from shale Typical profile H1 - 0 to 5 inches: clay loam H2 - 5 to 17 inches: clay H3 - 17 to 60 inches: clay loam properties and qualities Slope: 3 to 5 percent Depth to restrictive feature: More than 80 inches Drainage class: Well drained Runoff class: Low Capacity of the most limiting layer to transmit water (sat): Moderately low to moderately high (0.06 to O.20 inlhr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Calcium carbonate, maximum content: 15 percent Maximum salinity: Nonsaline to very slightly saline (0.0► to 2.0 mmhoslcm) Available water capacity: High (about 10.5 inches) Interpretive groups Land capability classification (irrigated): 4e Land capability classification (nonirrigated): 4e Hydrologic Soil Group. C Ecological site: R067BY042CO - Clayey Plains Hydric soil rating: No Minor Components Renohill Percent of map unit: 11 percent Hydric soil rating: No 13 Custom Soil Resource Report Heldt Percent of map unit: 4 percent Hydric soil rating: No Soil Information for All Uses Suitabilities and Limitations for Use The Suitabilities and Limitations for Use section includes various soil interpretations displayed as thematic maps with a summary table for the soil map units in the selected area of interest. A single value or rating for each map unit is generated by aggregating the interpretive ratings of individual map unit components. This aggregation process is defined for each interpretation. Building Site Development Building site development interpretations are designed to be used as tools for evaluating soil suitability and identifying soil limitations for various construction purposes. As part of the interpretation process, the rating applies to each soil in its described condition and does not consider present land use. Example interpretations can include corrosion of concrete and steel, shallow excavations, dwellings with and without basements, small commercial buildings, local roads and streets, and lawns and landscaping. Small Commercial Buildings (Pump Station 2) Small commercial buildings are structures that are less than three stories high and do not have basements. The foundation is assumed to consist of spread footings of reinforced concrete built on undisturbed soil at a depth of 2 feet or at the depth of maximum frost penetration, whichever is deeper. The ratings are based on the soil properties that affect the capacity of the soil to support a load without movement and on the properties that affect excavation and construction costs. The properties that affect the load -supporting capacity include depth to a water table, ponding, flooding, subsidence, linear extensibility (shrink -swell potential), and compressibility (which is inferred from the Unified classification of the soil). The properties that affect the ease and amount of excavation include flooding, depth to a water table, ponding, slope, depth to bedrock or a cemented pan, hardness of bedrock or a cemented pan, and the amount and size of rock fragments. The ratings are both verbal and numerical. Rating class terms indicate the extent to which the soils are limited by all of the soil features that affect the specified use. "Not limited" indicates that the soil has features that are very favorable for the specified use. Good performance and very low maintenance can be expected. 15 Custom Soil Resource Report "Somewhat limited" indicates that the soil has features that are moderately favorable for the specified use. The limitations can be overcome or minimized by special planning, design, or installation. Fair performance and moderate maintenance can be expected. "Very limited" indicates that the soil has one or more features that are unfavorable for the specified use. The limitations generally cannot be overcome without major soil reclamation, special design, or expensive installation procedures. Poor performance and high maintenance can be expected. Numerical ratings indicate the severity of individual limitations. The ratings are shown as decimal fractions ranging from 0.01 to 1.00. They indicate gradations between the point at which a soil feature has the greatest negative impact on the use (1.00) and the point at which the soil feature is not a limitation (0.00). The map unit components listed for each map unit in the accompanying Summary by Map Unit table in Web Soil Survey or the Aggregation Report in Soil Data Viewer are determined by the aggregation method chosen. An aggregated rating class is shown for each map unit. The components listed for each map unit are only those that have the same rating class as listed for the map unit. The percent composition of each component in a particular map unit is presented to help the user better understand the percentage of each map unit that has the rating presented. Other components with different ratings may be present in each map unit. The ratings for all components, regardless of the map unit aggregated rating, can be viewed by generating the equivalent report from the Soil Reports tab in Web Soil Survey or from the Soil Data Mart site. Onsite investigation may be needed to validate these interpretations and to confirm the identity of the soil on a given site. 16 Custom Soil Resource Report MAP LEGEND Area of Interest (Aol) Area of Interest (A0l) Soils Soil Rating Polygons Very limited Somewhat limited Not limited Not rated or not available Soil Rating Lines ,,,.+ Very limited - Somewhat limited .rmt Not limited r • Not rated or not available Soil Rating Points • a 0 Very limited Somewhat limited Not limited 0 Not rated or not available Water Features Streams and Canals Transportation 4r —f-+ retool Rails Interstate Highways US Routes Major Roads Local Roads Background Aerial Photography MAP INFORMATION The soil surveys that comprise your AOl were mapped at 1:24,000. Warning: Soil Map may not be valid at this scale. Enlargement of maps beyond the scale of mapping can cause misunderstanding of the detail of mapping and accuracy of soil line placement. The maps do not show the small areas of contrasting soils that could have been shown at a more detailed scale. Please rely on the bar scale on each map sheet for map measurements. Source of Map: Natural Resources Conservation Service Web Soil Survey URL: Coordinate System: Web Mercator (EPSG:3857) Maps from the Web Soil Survey are based on the Web Mercator projection, which preserves direction and shape but distorts distance and area. A projection that preserves area, such as the Albers equal-area conic projection, should be used if more accurate calculations of distance or area are required. This product is generated from the USDA-NRCS certified data as of the version date(s) listed below. Soil Survey Area: Weld County, Colorado, Southern Part Survey Area Data: Version 19, Jun 5, 2020 Soil map units are labeled (as space allows) for map scales 1:50,000 or larger. Date(s) aerial images were photographed: Oct 3, 2018 Dec 4, 2018 The orthophoto or other base map on which the soil lines were compiled and digitized probably differs from the background imagery displayed on these maps. As a result, some minor shifting of map unit boundaries may be evident. 18 Custom Soil Resource Report Tables Small Commercial Buildings (Pump Station 2) Map unit symbol Map unit name Rating Component name (percent) Rating reasons (numeric values) Acres in AOI Percent of AOI 67 Ulm clay loam, 3 to 5 percent slopes Very limited Ulm (85%) Shrink (1.00) -swell 8.6 100.0% Slope (0.00) Totals for Area of Interest 8.6 100.0% Rating Acres in AOI Percent of AOI Very limited 8.6 100.0% Totals for Area of Interest 8.6 100.0% Rating Options Small Commercial Buildings (Pump Station 2) Aggregation Method: Dominant Condition Component Percent Cutoff. None Specified Tie -break Rule: Higher 19 Custom Soil Resource Report Soil Reports The Soil Reports section includes various formatted tabular and narrative reports (tables) containing data for each selected soil map unit and each component of each unit. No aggregation of data has occurred as is done in reports in the Soil Properties and Qualities and Suitabilities and Limitations sections. The reports contain soil interpretive information as well as basic soil properties and qualities. A description of each report (table) is included. Building Site Development This folder contains a collection of tabular reports that present soil interpretations related to building site development. The reports (tables) include all selected map units and components for each map unit, limiting features and interpretive ratings. Building site development interpretations are designed to be used as tools for evaluating soil suitability and identifying soil limitations for various construction purposes. As part of the interpretation process, the rating applies to each soil in its described condition and does not consider present land use. Example interpretations can include corrosion of concrete and steel, shallow excavations, dwellings with and without basements, small commercial buildings, local roads and streets, and lawns and landscaping. Dwellings and Small Commercial Buildings (Pump Station 2) Soil properties influence the development of building sites, including the selection of the site, the design of the structure, construction, performance after construction, and maintenance. This table shows the degree and kind of soil limitations that affect dwellings and small commercial buildings. The ratings in the table are both verbal and numerical. Rating class terms indicate the extent to which the soils are limited by all of the soil features that affect building site development. Not limited indicates that the soil has features that are very favorable for the specified use. Good performance and very low maintenance can be expected. Somewhat limited indicates that the soil has features that are moderately favorable for the specified use. The limitations can be overcome or minimized by special planning, design, or installation. Fair performance and moderate maintenance can be expected. Very limited indicates that the soil has one or more features that are unfavorable for the specified use. The limitations generally cannot be overcome without major soil reclamation, special design, or expensive installation procedures. Poor performance and high maintenance can be expected. Numerical ratings in the table indicate the severity of individual limitations. The ratings are shown as decimal fractions ranging from 0.01 to 1.00. They indicate gradations between the point at which a soil feature has the greatest negative impact on the use (1.00) and the point at which the soil feature is not a limitation (0.00). 20 Custom Soil Resource Report Dwellings are single-family houses of three stories or less. For dwellings without basements, the foundation is assumed to consist of spread footings of reinforced concrete built on undisturbed soil at a depth of 2 feet or at the depth of maximum frost penetration, whichever is deeper. For dwellings with basements, the foundation is assumed to consist of spread footings of reinforced concrete built on undisturbed soil at a depth of about 7 feet. The ratings for dwellings are based on the soil properties that affect the capacity of the soil to support a load without movement and on the properties that affect excavation and construction costs. The properties that affect the load -supporting capacity include depth to a water table, ponding, flooding, subsidence, linear extensibility (shrink -swell potential), and compressibility. Compressibility is inferred from the Unified classification. The properties that affect the ease and amount of excavation include depth to a water table, ponding, flooding, slope, depth to bedrock or a cemented pan, hardness of bedrock or a cemented pan, and the amount and size of rock fragments. Small commercial buildings are structures that are less than three stories high and do not have basements. The foundation is assumed to consist of spread footings of reinforced concrete built on undisturbed soil at a depth of 2 feet or at the depth of maximum frost penetration, whichever is deeper. The ratings are based on the soil properties that affect the capacity of the soil to support a load without movement and on the properties that affect excavation and construction costs. The properties that affect the load -supporting capacity include depth to a water table, ponding, flooding, subsidence, linear extensibility (shrink -swell potential), and compressibility (which is inferred from the Unified classification). The properties that affect the ease and amount of excavation include flooding, depth to a water table, ponding, slope, depth to bedrock or a cemented pan, hardness of bedrock or a cemented pan, and the amount and size of rock fragments. Information in this table is intended for land use planning, for evaluating land use alternatives, and for planning site investigations prior to design and construction. The information, however, has limitations. For example, estimates and other data generally apply only to that part of the soil between the surface and a depth of 5 to 7 feet. Because of the map scale, small areas of different soils may be included within the mapped areas of a specific soil. The information is not site specific and does not eliminate the need for onsite investigation of the soils or for testing and analysis by personnel experienced in the design and construction of engineering works. Government ordinances and regulations that restrict certain land uses or impose specific design criteria were not considered in preparing the information in this table. Local ordinances and regulations should be considered in planning, in site selection, and in design. Report —Dwellings and Small Commercial Buildings (Pump Station 2) [onsite investigation may be needed to validate the interpretations in this table and to confirm the identity of the soil on a given site. The numbers in the value columns range from 0.01 to 1.00. The larger the value, the greater the potential limitation. The table shows only the top five limitations for any given soil. The soil may have additional limitations] 21 Custom Soil Resource Report Dwellings and Small Commercial Buildings -Weld County, Colorado, Southern Part Map symbol and soil name Pct. map unit of Dwellings without basements Dwellings with basements Small commercial buildings Rating limiting class and features Value Rating class limiting and features Value Rating class and limiting features Value 67 —Ulm clay loam, 3 to 5 percent slopes Ulm 85 Very limited Very limited Very limited Shrink -swell 1.00 Shrink -swell 1.00 Shrink -swell 1.00 Slope 0.01 22 References American Association of State Highway and Transportation Officials (AASHTG). 2004. Standard specifications for transportation materials and methods of sampling and testing. 24th edition. American Society for Testing and Materials (ASTM). 2005. Standard classification of soils for engineering purposes. ASTM Standard D2487-00. Cowardin, L.M., V. Carter, F.C. Golet, and E.T. LaRoe. 1979. Classification of wetlands and deep -water habitats of the United States. L.S. Fish and Wildlife Service FWS/OBS-79/31. Federal Register. July 13, 1994. Changes in hydric soils of the United States. Federal Register. September 18, 2002. Hydric soils of the United States. Hurt, G.W., and L.M. Vasilas, editors. Version 6.0, 2006. Field indicators of hydric soils in the United States. N ational Research Council. 1995. Wetlands: Characteristics and boundaries. Soil Survey Division Staff. 1993. Soil survey manual. Soil Conservation Service. U .S. Department of Agriculture Handbook 18. http://www.nres.usda.gov/wps!portal/ nres/detail/national/soils/?cid=nres142p2_054262 Soil Survey Staff. 1999. Soil taxonomy: A basic system of soil classification for making and interpreting soil surveys. 2nd edition. Natural Resources Conservation Service, U.S. Department of Agriculture Handbook 436. http:// www.nres. usda.gov/wps/portal/nres/detail/national/soils/?cid=nres142p2_053577 Soil Survey Staff. 2010. Keys to soil taxonomy. 11th edition. U.S. Department of Agriculture, Natural Resources Conservation Service. http:// wvwv.nres. usda.goviwps/portal/nres/detail/national/soils/?cid=nres142p2_053580 Tiner, R.'W., Jr. 1985. Wetlands of Delaware. U.S. Fish and Wildlife Service and Delaware Department of Natural Resources and Environmental Control, Wetlands Section. U nited States Army Corps of Engineers, Environmental Laboratory. 1987. Corps of Engineers wetlands delineation manual. Waterways Experiment Station Technical Report Y-87-1. U nited States Department of Agriculture, Natural Resources Conservation Service. N ational forestry manual. http://wv► w.nres.usda.gov/wps/portal/nres/detail/soils/ home/?cid=nres142p2_053374 U nited States Department of Agriculture, Natural Resources Conservation Service. N ational range and pasture handbook. http://w w.nres.usda.gov/wps/portal/nres/ detail/national/landuse/rangepasture/?cid=stelprdb 1043084 23 Custom Soil Resource Report U nited States Department of Agriculture, Natural Resources Conservation Service. N ational soil survey handbook, title 430 -VI. http://wv.nres.usda.gov/wps/portal/ nres/detail/soilslscientists/'cid=nres1 42p2_054242 United States Department of Agriculture, Natural Resources Conservation Service. 2006. Land resource regions and major land resource areas of the United States, the Caribbean, and the Pacific Basin. U.S. Department of Agriculture Handbook 296. http://www.nrcs.usda.goviwpsiportalinrcsidetailinationalisoilsi? ci d = n res 142 p2_053 024 U nited States Department of Agriculture, Soil Conservation Service. 1961. Land capability classification. U.S. Department of Agriculture Handbook 210. http:// www.nrcs.usda.gov/Internet/FSE DOCUMENTS/nrcs142p2 052290.pdf 24 Hello