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Home My WebLink About20202122.tiff USDA United States A product of the National ut S 'C' I r Resource Department of Cooperative Soil Survey, Agriculture a joint effort of the United States Department of Agricznte andcounty Fede Natural agencies including the Resources Agricultural Experiment C ' rI do . Conservation Stations, and local Service participantsPart _ __ 1 a p S •t`, ' — 1 1 di, ��- b ', a:1.— (�` t 3' 11 41 11 '•ii ^, - ,�r_ _��.,_ _ - _ - - _ fir _ _ . - _ _ Ad" l d -- t — - _ ,, tiy' 1 ' 1. . �ec± t _ e` ., , III(III r b • ;I t_ .171\ a 11, 1 1 1 ti . I1 z y*I.." 41411.e. 11, If yi A y a � Mt n y t, a J / ki e' I. O• . + 1 1 • %Aim \ - iiti. in- a lit ill li tile i L Tif 4 illi i ji IL- .... \I., e i 19%* 'i I si • IIII rir•-i _ till) � �,� �, '.1. 1. ' a `' lir.Y_ _ �1. �. III A h - _ M M L. J Ifi -�,�. n '�1 r i i ' et • 4. i it ii i , , ilk,,,I I I I, N. . .. 4 p i 1; a it I - g . 1 • ,A. k PK- t Jam. . - I ,�: .�1...- ., Id ! R I i II i.1 a; 1 tl «,_ - , P, 11. �I ` w,,Y •S _. 1 r ' 1 ihi Ll Y' i r' ` ' `1 `E ' 11 -iiIon` iI e 1 1 'A --.t a! `I 1• 1 rl yam' i - �• W Tit I i, ,. '�f 6 a, I • , {,. ,if iiNtii„,- - . il- , t 1 il r I at I a . ''yyU. I - Y _ -P r. I . -i s: I - " bills a - . t. 40"fl.cry 1 i 1 ti. f. it, - i'. i i I - r•/ —:. , f r .M' t o- .C iii; \\t‘l ii ., , .444 - k T• - - _ 4i 1 � . a ry 1 :0; c .�• 1 a - T s \ h ``� - b j I ' • .4.4. # Y 'fifir Ieg il i ' .. 3• ► ' •, ' I in :I C ��a .1. ► � 1• a November 20, 2019 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 . govlwps/ portal /nresfrnai nlsoilslh ealth/) and certain conservation and engineering applications. For more detailed information , contact your local USDA Service Center ( https ://offices egov. usda .gov/locator/ap p agency=nres) or your NRCS State Soil Scientist (http :/!www. n ros . u sd a.gov/wps/po rtal tin res/deta it/soil s/contactu s!? cid = nres142p2_0539b1 ). 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 part 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 I,reface■ ■ .r . . .•• ■ ' WOOF ■ a .1 n ■ ■ s . • . .i 2 lo Soil Surveys Are Made r . J - - - - . . naas . al . . . . . r . . . o . r . ata ■ . . n . . . . i . 5 SoilI lap . . . , . . . . L . . . . . . . . . . L . . n . . . r ■1 ■ ■ lr. Ian . ■ .4. . r . ran .So 8 Il Map ' on . , .. • er . ram■ . . r'a •r 1r. . . .' 'PI l.. .'ri1■ r• Legendr ■ . . . . . . . . . ■ r . ■ • , . ! earl .• - 71'r .r . r . 10 MapUnit Legend PI PI r■ . e•rt■ .ur'rr 4• errie : er • • 1 1 Map Unit Descriptions ■ >.•rort. r Parma. 4ef•r7+, _ ± ra . _ : : e' .. . 11 Weld County, Colorado , Southern Part . id. . . . : i . iiiifi.. i .ai . :.a . a . : f . iaaI-i.aii . ibi 13 —Aqualfs and que ts , flOaded . . . tr , w , ., a, . rr. . . . . • • . _ _ • _ IUP. . toe • rt., ww ,... . . . . r . + %,. *trel 13 4 15—Colby loam , 1 to 3 percent stapes. • _ . --.. a4; 01.4 • .. . .Gi•iii Gwr. . i . } i4 iaiY••w 42 Nunn clay loam , 1 to 3 percent slopes . : + ■ . dLLia . a1416 78 Weld loam , a to 1 percent slopes .' , . . .a�, , '•44• GISMOS l9-a... l . : 17 82—Wiley-Colbycam l to r percent to ...lags. . . a ■ ■ . . . . .a . ■ r ..... . . ....... . .. .r . L.6 1 V 85—Water n . . . . . . ., . . Pal 1 ,, . . . . • i . e. ..F74.■ . PIP 'J2'. 1 ar Soil Information for All Uses . . . . . . . PP4 . .. . .r . - • • • • 2r Suitabilities and Limitations for Use . . . . . . d . . . .. 22 Building Site Developmenta . . . . . . . inn . . . . . , . . , .. r ■ r 4 . r . . . l . r Pall . . rrr. . . i . . • . . . 22 Small Commercial Buildings l al T.. .• . , . . . . . . .. 22 28 I' References , . . . . . , 4 How Soil Surveys Ire Ma• de 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 [V1LR.A. 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 sails 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 landforrns 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 mast 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. 7 ■ i 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. Custom Soil Resource Report Btl - 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 Natural 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 i nlhr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Calcium carbonate, maximum in profile; 14 percent Salinity, maximum in profile: Non saline to very slightly saline (0 . 1 to 2.0 mmhosicm) sodium adsorption ratio, maximum in profile: 5. 0 Available water storage in profile: High (about 11 . 3 inches ) Interpretive groups Land capability classification (irrigated): 2c Land capability classification (nonir-rigated): 3c Hydrologic Soil Group: C Ecological site: Loamy Plains (R087B 002 CC ) Hydric soil rating: No Minor Components Colby Percent of map unit: 8 percent Landform: Hillslopes I (slopes Landform position (two-dimensional) : Backslope Landform position (three-dimensional): Side slope Down-slope shape : Convex Across-slope shape: Convex Ecological site: Loamy Plains ( R067BY002C O) Hydric soil rating: No Wiley Percent of map unit: 7 percent Landfomn: I nterfl uves Landform position (two-dimensional): Shoulder Landform position (three-dimensional) : Side slope Down-slope shape: Convex Across-slope shape: Convex Ecological site: Loamy Plains (R067BYO02CO ) Hydric soil rating: No Keith Percent of map unit: 3 percent Landforrn: I nterfiuves Landform position (iwo-dimensional) : Summit Landform position (three-dimensional): I nterf1 uve Down-slope shape: Linear 16 Custom Soil Resource Report Across-slope shape: Linear Ecological site: Loamy Plains ( R007BY002CO) Hydric soil rating: No Baca Percent of map unit: 2 percent Landform: I nterfluves Landform position (two-dimensional) : Summit, shoulder Landform position (three-dimensional): I nterfl uve Down-slope shape: Linear, convex Across-slope shape: Linear, convex Ecological site: Loamy Plains (RO57BV002CO) Hydric soil rating: No 82—Wiley-Colby complex , I to 3 percent slopes Map Unit Setting National map unit symbol: 3643 Elevation: 4 , 850 to 5,00Q 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 observationsr descriptions, and transects of the map unit. 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 - II to 60 inches: silty clay loam 1-13 - 60 to 64 inches: silty clay loam Properties and qualities Slope: 1 to 3 percent Depth to restrictive feature: More than 80 inches Natural 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 19 Custom Soil Resource Report Frequency of flooding: None Frequency of ponding: None Calcium carbonate, maximum in profile: 15 percent Salinity, maximum in profile: Non saline to very slightly saline (0 . 0 to 2 . 0 mmhos/om ) Available water storage in profile: High (about 11 . 7 inches) Interpretive groups Land capability classification (irrigated) : 2e Land capability classification (non irrigated) : 4e Hydrologic Soil Group: B Ecological site: Loamy Plains ( ROO7BY002CO) 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 - 0to 7inches: loam H2 - 7 to 60 inches: silt loam Properties and qualities Slope: 1 to 3 percent Depth to restrictive feature: More than 80 inches Natural 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 inihr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of pondirrg: None calcium carbonate, maximum in profile: 15 percent Available water storage in profile: High (about 10 . 6 inches ) Interpretive groups Land capability classification (irrigated): 3e Land capability classification (nonirrigated): 4e Hydrologic Soil Group: B Ecological site: Loamy Plains (ROO7BY002 CO ) Hydric soil rating: No Minor Components Heldt Percent of map unit 4 percent Hydric soil rating: No Weld Percent of map unit: 4 percent Hydric soil rating: No Keith Percent of map unit 2 percent 20 Custom Soil Resource Report Hydric soil rating: No 85—Water Map Unit Composition Water: 95 percent Minor components: 5 percent Estimates are based on observations, descriptions, and fransects of the mapunit . Minor Components Aquolls Percent of map unit: 5 percent Landform: Marshes Hydric soil rating: Yes 21 Soil Information for All e 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 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 . 22 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 . 23 Custom Soil Resource Report Map—Small Commercial Buildings Ln Di 4 in t 50 � D 5 00 5:6100 5 55540D 4' 505700 508900 ° 24 rfV 0 , — j i - 4[7° 4' 2` N s, , ,, ,,, bt ' 1ag_ _� i. IS!!!r a i II. it 4 Main' r 4 (i t t, V s 4. , �' p u --�, �.- 1` y S , Y. e �.'� Kmµ Y y� . ;• 44 :.If 3 --Q I_i � _ it P ♦. ` Imo! t 8III s . ' ,.o, - t- 4 i 4 w i. rg g v � 11 ! 4 . I .� . I , ¢ W t I ` 1 x V gi z. 4 I - -\:'-F� i _ * - " R I ''N, 4 l ice 0 It f . , \ 78 b Ca I �. I li�4 ` % .�14, .. 1. ,,1 G 11 il i 64- • 1 _ 9 + - 4 ' i SSy, 7 Ili o� llit \ - I `. 4 : (� �= ...s\1/2\. \ . _-,-z-- 1 I 4. 4: _ r - _ rsz28Qfl yea MEL8notebe witeldg tzia figis s€Lare4%.� }est* dr ' cb 504830 541603 504700 5448C� 50190 9351 CO 5C62CC 505300 506400 505500 545aoa 5057C0 59513X 5059Z0 5oetra© 4 ED Map Scale: 1:7,270 if printed or A landscape (11" x 8.5"1 sLeet rn in eg mi.Meters iis 10O 2OO 400 8O0 a Feet O 350 700 WA 2100 teili, Map pr je hn: Web Meret r Corner tiir1 : wGsszt Edge tic: LAN Zone 13N 'WtB4- 24 Custom Soil Resource Report MAP LEGEND MAP INFORMATION Area of Interest (AOl) Background The soil surveys that comprise your AO1 were mapped at Area of Interest (AO' ) Aerial Photography 1 :24 ,000. Soils Warning: Soil Map may Soil Rating Polygons not be valid at this scale. Very limited Enlargement of maps beyond the scale of mapping can cause Somewhat limited misunderstanding of the detail of mapping and accuracy of soil Not limited line placement. The maps do not show the small areas of contrasting soils that could have been shown at a more detailed Not rated or not available scale . Soil Rating Lines Very limited Please rely on the bar scale on each map sheet for map measurements. • • Somewhat limited ast Not limited Source of Map: Natural Resources Conservation Service Web Soil Survey URL: • • Not rated or not available Coordinate System: Web Mercator (EPS1:3857) Soil Rating Points Very limited Maps from the Web Soil Survey are based on the Web Mercator projection , which preserves direction and shape but distorts Somewhat limited distance and area. A projection that preserves area, such as the Not limited Albers equal-area conic projection, should be used if more accurate calculations of distance or area are required . Not rated or not available Water Features This product is generated from the USIA-N RCS certified data as of the version date(s) listed below_ Streams and Canals Transportation Soil Survey Area : Weld County, Colorado, Southern Part n Rails Survey Area Data: Version 18, Sep 13, 2019 ado Interstate Highways Soil map units are labeled (a5 space allows) for map scales US Routes 1 :50: 000 or larger. Major Roads Date(s ) aerial images were photographed : Aug 11 , 2018—Aug Local Reads 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 shitting of map unit boundaries may be evident. 25 Custom Soil Resource Report Tablas—Small Commercial Buildings Map unit i Map unit name Rating Component Rating reasons Acres In AOI Percent of AOI symbol I name (percent) (numeric values) 4 Aquolls and Very limited Aquolls (55%) Flooding ( 1 .00) 2.8 1 .2% Aquepts, flooded Depth to saturated zone (0.81 ) Shrink-swell (0. 50) Aquepts , flooded Flooding (1 .00) (25% ) Depth to saturated zone (0 .81 ) Shrink-swell (0 .50) 15 Colby loam , 1 to Not limited Colby (85% ) 2.4 1 . 1 % 3 percent slopes 1 42 Nunn clay loam , Somewhat Nunn (85% ) Shrink-swell 23. 2 10.5% 1 to 3 percent limited (0.77) Islopes 78 Weld loam, 0 to 1 Somewhat Weld (8D%) Shrink-swell 14. 0 6. 3% percent slopes limited (0.02) Wiley (7 %) Shrink-swell (0.00 ) Baca (2%) Shrink-swell (0 .22) 82 Wiley-Colby Somewhat Wiley (60% ) Shrink-swell 173.5 78 .3% complex, 1 to 3 limited I (0 .42) percent slopes u 85 Water Not rated Water (95%) 5.7 2.8% Aquolls (5%) Totals for Area of Interest 221 . 5 100.00/D Rating ! Acres In AOI Percent of AEI Somewhat limited 210.6 95. 1 % Very limited 2. 8 1 .2% Not limited 2.4 1 . 1 % Null or Not Rated 5.7 2.6% Totals for Area of Interest 221 . 5 100.0% Rating Options—Small Commercial Buildings Aggregation Method: Dominant Condition 26 Custom Soil Resource Report Component Percent Cutoff: None Specified Tie-break Rule: Higher 27 References' American Association of State Highway and Transportation Officials (AASHTO) . 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 . I . 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, C .W. , and L. M . Vasilas , editors. Version 6.0, 2006. Field indicators of hydric soils in the United States . National 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://ww . . nres. usda. gov/wps/partalf n res/detail/national/sol Is/?ci d=nres 142 p2 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:// Wo WW. nres . usda. govlwps/portal/nresldetaiI/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:// ym . nres . usda .gov/wrps/portallnres/detail/nationaIlsoits/?cid = nres142p2_053636 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 . United States Army Corps of Engineers, Environmental Laboratory. 1987. Corps of Engineers wetlands delineation manual . Waterways Experiment Station Technical Report Y-87- 1 . United States Department of Agriculture , Natural Resources Conservation Service . National forestry manual . http://vtAivw. nres . usda . goer/wps/portallnresldetail/soils/ ho m el'?cith n res 142 p2_663 374 United States Department of Agriculture , Natural Resources Conservation Service . National range' and pasture handbook . http : //vvww. nres . usda . gov/wps/portal/nres/ detail/national/landuse/rangepasture/'? cid =stelprdbl 043084 28 Custom Soil Resource Report United States Department of Agriculture , Natural Resources Conservation Service . National soil survey handbook, title 430-VI . http : //v+ u . nres . usda . gov/wps/portall n resld eta it/soi I s/scienti stsl'?cid = n res 142 p2_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. nres. usda . gov/wps/portal/nrestdetaillnationallsoilsl? ci d=n res 142p2_0 53624 United States Department of Agriculture , Soil Conservation Service . 1961 . Land capability classification . U . S. Department of Agriculture Handbook 210 . http:// viiww. nrcs.usda. gov/Internet/FSE_DOCUMENTSInrcs142p2_052290 . pdf 29 V Sa LOGIC December 4, 2019 AGPROfessionals als 3050 67th Avenue, Suite 200 Greeley, Colorado 80634 Attn: Ms . Shannon Toomey Re : Geology Report Proposed Industrial Development Parcel Numbers : 0795718300050 & 095718000009 27486 County Road 13 & 6433 County Road 56 Weld County (Johnstown), Colorado Soilogic Project #4 19- 1310 Mr. Toomey: Soilogic, Inc. (Soilogic) personnel have completed the geologic evaluation you requested for the above referenced parcels . Our evaluation was completed through review of mapped and published information concerning site soil and groundwater conditions . A list of the references reviewed is included with this report. The two (2) subject parcels include a total of approximately 131 acres located in a portion of the South A of Section 18, Township 5 North , Range 67 West of the 6th Principal Meridian, northeast of the intersection of County Roads 13 and 56 in unincorporated Weld County near Johnstown, Colorado . We understand the site may be rezoned from agricultural to heavy industrial. Multiple On-Site Wastewater Treatment Systems (OWTS) are currently present onsite and we anticipate wastewater generated by any additional commercial/industrial buildings will be disposed of through OWTS . Based on aerial photography, a majority of the site appears to be utilized as a railway accessible sand and gravel distribution center with various infrastructure present onsite. The site gently slopes downward to the northeast with the maximum difference in ground surface elevation across the parcel estimated to be on the order of approximately 30 feet based on review of topographic maps of the area. The Koenig Reservoir borders the southeastern portion of the site and a Union Pacific railway is present along the Soilogic, Inc. 3522 Draft Horse Court • Loveland, CO 80538 • (970) 5364144 Geology Report Proposed Industrial Development Parcel Numbers: 0795718300050 & 095718000009 274S6 County Road 13 & 6433 County Road 56 Weld County (Johnstown), Colorado soilogic Project # 19- 1310 2 southwestern property line. A small portion of the site property lines run along County Road. 56 to the south and County Road 13 to the west. The included soil type delineation diagram outlines those soil groupings identified at the site by Weld County Soil Conservation Service ( C ) maps. SCS descriptions of those soil types are included with this report. The majority of the near surface soils at this site (approximately 90-percent) consist of low to moderate plasticity silty clay loam from the Wiley-Colby complex. The remaining portion of the near surface soils at this site consist of low to moderate plasticity silt loam to clay loam from the Weld loam and Nunn clay loam series. The near surface site soils appear to consist of Pleistocene aged alluvium and/or eolian deposits, according to SCS maps . Geologic maps of the area indicate the overburden soils are underlain by the Pierre Shale bedrock formation from the Upper Cretaceous period. Mapped information indicates the property is not in an area identified as being flood prone and would be expected to have groundwater at depths greater than 6 feet. According to SCS data, the depth to bedrock would be expected to be greater than feet. Based on our review of the site as outlined above, we expect the near surface soils could be used for support of lightly to moderately loaded structures. Deep foundation systems could be employed if heavy foundation loads are anticipated or if moderately to highly expansive soils and/or bedrock are encountered within close proximity to proposed foundation bearing elevations. The subject property falls within a field identified as having the potential for economically recoverable oil and gas resources . Active wells tapping the referenced field exist within and are adjacent to the referenced parcel . We expect the existing active well sites could be utilized to extract oil and gas resources that may exist beneath the subject property through directional and non-directional drilling procedures such that development of the subject parcel would not impede recovery. Geology Report. Proposed Industrial Development Parcel Numbers: 079 57183 00050 & 095718000009 27486 County Road 13 & 6433 County Road 56 Weld County (Johnstown), Colorado Soilogic Project ## 19- 1310 3 Based on our review of published maps, the subject parcels do not fall within those areas identified as having economically recoverable sand and gravel, or metallic mineral resources and we did not identify other potential geologic hazards as outlined in H.B . 1041 . We appreciate the opportunity to be of service to you on this project. If we can be of further service to you in any way or if you have any questions concerning the enclosed information, please do not hesitate to contact us. Very Truly Yours, Soilogic, Inc. ! Reviewed by : �,e REGt- d is (t)! 7rot, . . . . . .6: , ,1-9;>e 4 / iii l i„ i e- Ai„fis'ikttittIONAL t"V f Josh Schmidt Wolf von Car owitz, RE . N Engineering Technician Principal Engineer Geology Report Proposed Industrial Development Parcel Numbers: 0795718300050 & 095718000009 27486 County Road 13 & 6433 County Road 56 Weld County (Johnstown), Colorado &oilogic Project # 19- 1310 4 REFERENCES . Cotton R.B . and Harold R. Fitch, 1974, Map Showing Potential Sources of gravel and Crushed-Rock A re late. in, the Boulder-Fort Collins- reeley Area, Front Range Urban Corridor, Colorado: U. S . Geological logical Survey Miscellaneous aneous Investigation Series Map 1-855-0 . 2 . Colton R.B. , 1978, geologic Map of the Boulder-Fort Collins-Greeley Area. Colorado: U. S . Geological Survey Miscellaneous Investigation Series Map I-955-G . 3 . Hershey L.A. and Schneider, Jr. P.A., 1972, Geologic Map of the Lower_Cache La Poudre River Basin , North -Central Colorado : U. S . Geological Survey Miscellaneous Investigation Series Map 1-687. 4. Hillier D. and Schneider, Jr. PA, 1979, Depth to the Water Table in the Boulder-Fort Collins-Greeley Area, Front Range Urban Corridor, Colorado: U. S . Geological Survey Miscellaneous Investigation Series Map I-855-I. 5 . United States Department of Agriculture Soil Conservation Service and Forest Service in Cooperation with Colorado Agricultural Experiment Station, 1980, Soil ur ve, f ' eld ou ly Are, Colorado, Maps 239-812/3 . 6. Schneider, Jr. P. A., 1983 Shallow Groundwater in the Boulder-Fort Collins-Greeley Areas Front Range Urban Corridor. Colorado 197.E-77 : U.S . Geological Survey Water Resources Investigations Report 83-4058. 7 . Soil Survey Staff, Natural Resources Conservation Service, United States Department of Agriculture. Web Soil Survey. Available online at http://websoilsurvey.nrcs .usda.gov accessed (November 17, 2019). 8 . Colorado Oil and Gas Commission, Department of Natural Resources, 2019 https ://cogccmap. state.co .pus/cogcc_gis_online. 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DDA Natural Resources Web Soil Survey 1112712019 — Conservation Service National Cooperative Soil Survey Page 1 of 3 Soil Map—Weld County, Colorado, Southern Part MAP LEGEND MAP INFORMATION Area of Interest (AEI) g Spoil Area The soil surveys that comprise your AOI were mapped at Area of Interest (AO!) Ston at 1 :24 ,000. Y R Soils tni Very Stony Spot Warning: Soil Map may not be valid at this scale. Soil Map Unit rfit Wet Spot Enlargement of maps beyond the scale of mapping can cause Soil Map Unit Lines ' misunderstanding of the detail of mapping and accuracy of soil Other line placement. The maps do not show the small areas of Soil Map Unit Paints contrasting soils that could have been shown at a more detailed Special Line Features Special Point Features scale . Blowout Plabar Features Streams and Canals Please rely on the bar scale on each map sheet for map C4 Borrow Pit measurements . Tra ns portation Clay Spot * Rails Source of Map: Natural Resources Conservation Service Closed Depression Web Soil Survey URL: Interstate Highways Coordinate System: Web Mercator (EPSG:3857) Gravel Pit US Routes Maps from the Web Soil Survey are based on the Web Mercator Gravelly Spot Major Roads projection , which preserves direction and shape but distorts distance and area. A projection that preserves area, such as the Landfill Local Roads Albers equal-area conic projection, should be used if more A. Lava Flow accurate calculations of distance or area are required. Background icikp Marsh or swamp Aerial Photography This product is generated from the USDA-NRCS certified data as of the version date (s) listed below. a Mine or Quarry Soil Survey Area: Weld County, Colorado , Southern Part Miscellaneous iikter Survey Area Data: Version 18, Sep 13 , 2019 Perennial Water Soil map units are labeled (as space allows) for map scales RockOutcrop 1 :50, 000 or larger. Saline Spot Date(s) aerial images were photographed: Aug 11 , 2018—Aug 12, 2018 0.0 Sandy Spot The orthophoto or other base map on which the soil lines were Severely Eroded Spot compiled and digitized probably differs from the background Sinkhole imagery displayed on these maps_ As a result, some minor shifting of map unit boundaries may be evident. Iv Slide or Slip Sadie Spot USDA Natural Resources Web Sail Survey 11127/2019 na Conservation Service National Cooperative Soil Survey Page 2 of 3 Soil Map—Weld County, Colorado, Southern Part Map Unit Legend Map Unit Symbol Map Unit Name Acres In AOI F -- Percent of-A01 42 Nurir7 day loam, 1 to 3 percent 4.3 3, 3% slopes 78 Weld barn , 0 to 1 percent 8.2 6.3% slopes 82 Wiley-Colby complex, 1 to 3 117.5 90.4% percent slopes Totals for Area of Interest130.0 100.0% 'NI ;A Natural Resources Web Soil Survey 11 /2712019 Mai Conservation Service National Cooperative Soil Survey Page 3 of 3 Map Unit Description : Nunn clay loam, 1 to 3 percent slopes---Weict County, Colorado, Southern Part Weld County, Colorado , Southern Part 42—Nunn clay loam , I to 3 percent slopes Map Unit Setting National map unit symbol: 2tlpl Elevation : 3 909 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 transepts 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 B! - 9 to 13 inches: clay loam letk - 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 Natural 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 in profile: 7 percent Salinity, maximum in profile: Nonsaline to very slightly saline (0 . 1 to 2 .0 mmhos/cm) sodium adsorption ratio, maximum in profile: 0 .5 Available water* storage in profile: High (about 9 . 9 inches) Interpretive groups Land capability classification (irrigated) : 2e USDA Natural Resources Web Soil Survey 11 /27/2019 arm Conservation Service National Cooperative Soil Survey Page 1 of 2 Map Unit Description: Nunn clay loam, 1 to 3 percent slopes---Weld County, Colorado, Southern Part Land capability classification (nonirrigated) : 3e Hydrologic Soil Group: C Ecological site: Clayey Plains (R067BY042CO) 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: Clayey Plains ( R067BY042CO) 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: Loamy Plains (R0G7BY00200) Hydric soil rating: No Data Source Information Soil Survey Area : Weld County, Colorado , Southern Part Survey Area Data: Version 18 , Sep 13 , 2019 sro Natural Resources Web Soil Survey 11 /27/2019 Consarvatlon Service National Cooperative Soil Survey Page 2 of 2 Map Unit Description : Weld loam, 0 to 1 percent slopes---Weld County, Colorado, Southern Part Weld County, Colorado , Southern Part 78—Weld loam , 0 to 1 percent slopes Map Unit etti ng National map unit symbol: 2x0hy Elevation: 3 , 500 to 5 , 750 feet Mean annual precipitation: 12 to 17 inches Mean annual air temperature: 45 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 nter-fluves Landform position (two-dimensional) : Summit Landform position (three-dimensional): I nterfl uve Down-slope shape: Linear Across-slope shape: Linear Parent material: Calcareous loess Typical profile Ap - 0 to 8 inches: loam tf - 8 to 12 inches: clay Bt2 - 12 to 15 inches: clay loam Btk - 18 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 Natural drainage class: Well drained Runoff class: Lou 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 in profile : 14 percent Salinity, maximum in profile : Nonsaline to very slightly saline (0. 1 to 2 . 0 mmhosicm) Sodium adsorption ratio, maximum in profile: 5 . 0 Available water storage in profile: High (about 11 .3 inches) USDA Natural Resources Web Sod Survey 11 /27/2019 Conservation Service National Cooperative Soil Survey Page 1 of 3 Map Unit Description : Weld loam, 0 to 1 percent slopes---Weld County, Colorado, Southern Part Interpretive groups Land capability classification (irrigated): 2c Land capability classification (nonirrigated) : 3c Hydrologic Soil Group: C Ecological site: Loamy Plains (ROG7BY002CO) Hydric soil rating: No Minor Components Colby Percent of map unit: 8 percent Landform: H i I I slopes Landform position (two-dimensional) : Backslope Landforrn position (three-dimensional): Side slope Down-slope shape: Convex Across-slope shape: Convex Ecological site : Loamy Plains (ROG7BYOO2CO) Hydric soil ra tin g: 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: Loamy Plains ( R067BY002CO) Hydric soil rating: No Keith Percent of map unit: 3 percent Lary cl'form: I nterfluves Landform position (two-dimensional): Summit Landform position (three-dimensional) : I nterfluve Down-slope shape: Linear Across-slope shape: Linear Ecological site: Loamy Plains (RO67 BYOO2 CO) 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): Interfluve Down-slope shape: Linear, convex Across-slope shape: Linear, convex Ecological site: Loamy Plains (ROG7BYOQ2CO) ws Natural Resources Web Soil Surrey 11 /27/2019 Conservation Service National Cooperative Soil Survey Page 2 of 3 Map Unit Description: Weld loam, 0 to 1 percent slopes---weld County, Colorado, Southern Part Hydric soil rating: No Data Source Information Soil Survey Area : Weld County, Colorado, Southern Part Surrey Area Data : Version 18, Sep 13 , 2019 us Natural Resources Web Soil Survey 11 /27/2019 Conservation Service National Cooperative Soil Survey Page 3 of S p � Map Unit Description: Wley-Colby complex , 1 to 3 percent slopes---Weld County, Colorado , Southern Part Weld County, Colorado, Southern Part 82---Wiley-Colby complex, I to 3 percent slopes Map Unit Setting National map unit symbol: 3643 Elevation: 4 , 850 to 5 , 000 feet Mean anneal 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 Natural 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 parading: None calcium carbonate, maximum in profile: 15 percent Salinity, maximum in profile : Nonsaline to very slightly saline (0. 0 to 2 . 0 mmhos/cm) hoslcm) Available water storage in profile: High (about 11 .7 inches) Interpretive groups Land capability classification (irrigated): 2e Land capability classification (nonirrigatecl): 4e Hydrologic Soil Group: B Ecological site: Loamy Plains (R067BY002CO ) USDA Natural Resources Web Soil Survey 11 /27/2019 gag Conservation Service National Cooperative Soil Survey Page 1 of 2 Map Unit Description: Wiley-Colby complex, 1 to 3 percent slopes---Weld County, Colorado, Southern Part 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 Natural 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 i nihr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Calcium carbonate, maximum in profile: 15 percent Available water storage in profile: High (about 10 . 6 inches) Interpretive groups Land capability classification (irrigated) : 3e Land capability classification (nanirr/gated) : 4e Hydrologic Soil Group: B Ecological site: Loamy Plains ( R067BY002CO) Hydric soil rating: No Minor Components Heldt Percent of map unit: 4 percent Hydric soil rating: No Weld Percent of map unit: 4 percent Hydric soil rating: No Keith Percent of map unit: 2 percent Hydric soil rating: No Data Source Information Soil Survey Area: Weld County, Colorado , Southern Part Survey Area Data: Version 18 , Sep 13, 2019 vili% Natural Resources Web Soil Survey 11 /27/2019 Conservation Service National Cooperative Soil Survey Page 2 of 2 p � Hello