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EXHIBIT 1 ' ' 0.4411: ":.,„-.),!,.-'.1. !!!!'' ., 980612 E� 5 t 46 3 9 2 �- f, 68 ,l , 68 • • • 51 o •\).-----s\ • oa o 52 o0 47 41• • 51 40 `' 41 52 J \. ,: ,. r. 3 : '� 10 ' \,68 <a 3y F. .., r. CACHE t '5lE " r� b� 1'is j `3. .. io. ;� TT '° ";:' f' 7 _. i >✓�,_ E 10 ii 10 o , vti , r 10 8 z 11 3 , E V: ,... s' I LINN Gfi'OVE Fib 3 r CEME,TER Y, a +.!* 5 4 T • • 2 • 54 • "Si!' • • ; rss... • '':Es:`!"'yi4 ?t: tx a 4 .......... .::. ... ... ...... ...... .r' :4 >_ 1j ssVY. 1 ...... ,. .„EST,: ,' . 3 is .x- • gin. < ; � k • N R ...,.'' :r.,r ki. ..: O 47 E'• I,P• o cn • 54 M • i. 4.r..•. .- 6� 1. • 4 w 310 , �r fit i r ' 10.: /' • la RIVER 10. E • r i i F R r :' off / ... s t. ctl ak t 6 tt a' .�'1' 77'u,t k .,,:. ai ; 8 SOIL SURVEY filter the leachate. Sewage lagoons require sealing. 60 percent of the unit. Aquents, which have a lighter Lawns, shrubs, and trees grow well. Capability subclass colored surface layer, make up about 35 percent. About 5 Its irrigated. percent is Aquepts and Bankard sandy loam. 2—Altvan loam, I to 3 percent slopes. This is a deep, These are deep, poorly drained soils that formed in well drained soil on terraces at elevations of 4,500 to 4,900 recent alluvium. No one pedon is typical. Commonly the feet. It formed in old alluvium deposited by the major soils have a mottled, mildly alkaline to moderately al- rivers. Included in mapping are small areas of soils that kaline loamy or clayey surface layer and underlying show evidence of poor drainage. Also included are small, material and are underlain by sand or sand and gravel long and narrow areas of sand and gravel deposits. within 48 inches. In places they have a gleyed layer in the Typically the surface layer of this Altvan soil is grayish underlying material. brown loam about 10 inches thick. The subsoil is brown Most of the acreage is subject to flooding. The water and light yellowish brown clay loam and sandy clay loam table is at or near the surface early in spring and recedes about 14 inches thick. The substratum is calcareous loamy to as deep as 48 inches late in fall in some years. sand about 5 inches thick over gravelly sand. These soils are used for rangeland and wildlife habitat. Permeability and available water capacity are Some small areas have been reclaimed by major drainage moderate. The effective rooting depth is 20 to 40 inches. and leveling and are used for irrigated crops. Surface runoff is medium, and the erosion hazard is low. The potential native vegetation is dominated by alkali This soil is used almost entirely for irrigated crops. It sacaton, switchgrass, and western wheatgrass. Saltgrass, is suited to all crops commonly grown in the area, includ- sedge, rush, and alkali bluegrass are also prominent. ing corn, sugar beets, beans, alfalfa, small grain, potatoes, Potential production ranges from 3,000 pounds per acre in and onions. An example of a suitable cropping system is 3 to 4 favorable years to 2,000 pounds in unfavorable years. As years of alfalfa followed by corn, corn for silage, range condition deteriorates, the switchgrass, alkali sugar beets, small grain, or beans. Land leveling, ditch lining, and installing pipelines may be needed for proper sacaton, and western wheatgrass decrease and saltgrass, water application. sedge, and rush increase. All methods of irrigation are suitable, but furrow ir- Management of vegetation should be based on taking half and leaving half of the total annual production. Seed- rigation is the most common. Barnyard manure and com- ing is difficult and costly because numerous tillage prac- mercial fertilizer are needed for top yields. Windbreaks and environmental plantins of trees and tices are required to eliminate the saltgrass sod. Switchgrass, western wheatgrass, alkali sacaton, tall shrubs commonly grown in the area are generally well wheatgrass, and tall fescue are suitable for seeding. They suited to this soil. Cultivation to control competing vegetation should be continued for as many years as can be seeded into a clean, firm seedbed. Seedbed possible following planting. Trees that are best suited and preparation usually requires more than 1 year to eliminate the saltgrass sod. A grass drill should be used. have good survival are Rocky Mountain juniper, eastern redcedar, ponderosa pine, Siberian elm, Russian-olive, and Seeding early in spring has proven most successful. Wetland wildlife, especially waterfowl, utilize this unit. hackberry. The shrubs best suited are skunkbush sumac, The wetland plants provide nesting and protective cover, lilac, Siberian peashrub, and American plum. This soil can produce habitat elements that are highly as well as some food. The nearby irrigated cropland, /, suitable for openland wildlife including pheasant, cotton- where wildlife obtain much of their food and find protec- tail, and mourning dove. Such crops as wheat, corn, and tive cover, makes this unit valuable to both wetland and alfalfa provide suitable habitat for openland wildlife, openland wildlife. especially pheasant. Tree and shrub plantings and Openland wildlife, especially pheasant, use this unit for undisturbed nesting cover would enhance openland wil- cover and nesting. Deer find excellent cover in some dlife populations. areas. This Altvan soil has fair to good potential for urban These valuable wildlife areas should be protected from and recreational development. The chief limiting soil fea- fire and fenced to prevent encroachment and overuse by tures for urban development are the shrink-swell poten- livestock. They should not be drained. tial of the subsoil as it wets and dries and the rapid These soils have good potential as a source of sand and tic gravel. Capability subclass 1/317; Salt Meadow range site. permeability of the sand and gravel substratum. Sep tank absorption fields function properly, but in places the 4—Aquolls and Aquepts, flooded. This nearly level substratum does not contain enough fines to properly map unit is in depressions in smooth plains and along the filter the leachate. Sewage lagoons require sealing. bottoms of natural drainageways throughout the survey Lawns, shrubs, and trees grow well. Capability subclass area. Aquolls, which have a dark colored surface layer, rigated. make up about 55 percent of the unit. Aquepts, which 3 Aquolls and Aquents, gravelly substratum. This have a lighter colored surface layer, make up about 25 rly level map unit is on bottom lands and flood plains percent. About 20 percent is soils that are well drained of all the major streams in the survey area. Aquolls, and soils that have sandstone or shale within 48 inches of which have a dark colored surface layer, make up about the surface. '; 980612 124 SOIL SURVEY TABLE 12.--ENGINEERING PROPERTIES AND CLASSIFICATIONS [The symbol ( means less than; > means greater than. Absence of an entry means data were not estimated) Classification Frag- Percentage passing Soil name and ,Depth USDA texture ments sieve number-- Liquid Plas- map symbol Unified AA SIITO > 3 r limit ticity inches 4 ; 10 40 200 index In � - i._ ._ - Pct v—Pct r 1, 2 0-10 Loam CL-ML ;A-4 0 90-100;85-100 60-95 50-75 ; 20-30 5-10 Altvan 10-25 Clay loam, loam CL A-6, A-7 0 95-100195-100 85-100 70-80 35-50 15-25 25-60 Sand and gravel SP, SP-SM A-1 0 75-95 :70-90 25-35 0-10 --- NP 3" A uolls 0-48 Variable --- --- --- _-_ ___ ___ ___ ___ 48-60,Sand, gravelly SP, SP-SM A-1 0-10 60-90 150-70 130-50 , 0-10 --- NP , sand. I Aquents 0-48;Variable --- --- --- _ 48-60 ;Sand and gravel SP, SP-SM A-1 0-10 60-90 150-70 ;30-50 0-10 --- NP 1". 1 Aquolls 0-60:Variable --- --- naet 0-60:Variable p 1Variable --- --- o_, 6, 7 0-8 ;.Sandy loam SM A-2, A-4 0 95-100 90-100 70-95 ;25-50 ; 15-25 NP-5 Ascalon 8-18 Sandy clay loam SC, CL A-6 0 95-100 90-100 80-100140-55 ; 20-40 10-20 18-60 Sandy loam, SC, A-4 , A-6 0 95-100 95-100 75-95 135-65 ; 20-40 5-15 sandy clay SM-SC, loam, fine CL, sandy loam. CL-ML 1, 9 0-9 Loam ,.SM A-2, A-4 ; 0 95-100 90-100 70-95 :25-50 1 15-25 NP-5 Ascalon 8-18 Sandy clay loam ;SC, CL A-6 0 95-100 90-100 80-100;40-55 1 20-40 10-20 18-60 Sandy loam, ;SC, A-4, A-6 0 95-100 95-100 75-95 135-65 1 20-40 5-15 sandy clay 1 SM-SC, loam, fine CL, sandy loam. 1 CL-ML , 0 ; 0-4 Sandy loam SM A-2, A-4 0 95-100 90-100 60-70 30-40 ; --- NP 9ankard 9-60 Fine sand , sand , SP-SM, SM A-7, 0- 5 70-100 60-100 40-70 5-25 --- NP gravelly sand. A-3, A-1 1 , 12 ; 0-16 Sandy loam i3M A-1 , A-2 0 95-100 75-100 35-50 20-35 115-25 I NP-5 Dresser 16-25 Sandy clay loam ISC A-2, 0 95-100 75-100 50-70 30-50 ; 30-55 ; 10-25 A-6, ' A-7 25-30 Sandy loam, ;SC, SM-SC A-2, A-1 , 0 ,90-100,60-100,30-60 20-30 25-35 1 5-15 coarse sandy , ,loam, gravelly ' ' sandy loam. ' 30-60 Loamy coarse ',SP-SC A-2, A-1 0-5 80-100;35-85 ;20-50 1 5-10 20-30 5-10 sand , gravelly loamy sand , 1 ' very gravelly 1 ' loamy sand . 3 0-9 Gravelly sandy ;GM 1A-1 , A-2 0-15 ;50-65 150-60 15-40 110-35 --- NP Cascajo loam. 9-31 Very gravelly ;GP-GM, A-1 1 0-15 115-50 ;15-50 5-30 0-20 --- NP sandy loam, 1 GP, GM very gravelly loamy sand , ' very gravelly sand . 31-60 Very Gravelly GP, SP, ', A-1 0-15 10-60 ', 10-60 , 5-30 0-10 , --- NP loamy sand, CP-Gm, very gravelly SR_SM sand, gravelly 1 sand . See footnote at end of table . 980612 WELD COUNTY, COLORADO, SOUTHERN PART 129 TABLE 13•--PHYSICAL AND CHEMICAL PROPERTIES OF SOILS [The symbol < means less than; > means greater then. The erosion tolerance factor (T) is for the entire profile. Absence of an entry means data were not available or were not estimated] -T— ---5 Risk of corrosion_; Erosion Wind Soil name and Depth Perinea- Available Soil Salinity; Shrink- :: factors__ erodi- map symbol bility water reaction swell Uncoated :Concrete bility I y ca acit :potential __steel ; I KT group t.". In In/hr In/in Mmhos/cm' ."?%,',:56 1, 2 ? wr-1- 0-10 0.6-2.0 0.20-0.24 6.6-7.8 --- .Low Moderate Low 0.24 3 5 Altvan \o- ' 2 10-25 0.6-2.0 0.15-0.17 7.4-8.4 <2 Moderate Moderate Low 0.28 25-60 >20 0.02-0.04 7.4-9.0 <2 Low Moderate Low 0. 10 5,21 3*. veils 0-48 ___ 1.=/ ___ ___ ,___ 48-60 >20 0.04-0.06 7.4-8.4 2-16 Low ;High Moderate --- Aquents , 0-48 148-60 >20 0.04-0.06 7.4-8.4 2-16 Low ;High Moderate --- 4*: Aquolls 0-60 --- --- --- --- --- -- --- Aquepts 0-60 ___ ___ ___ ___ 5, 6, 7, 8, 9 0-8 0.6-6.0 0. 11-0. 16 6.6-7.8 <2 Low ;Low Low n. 17 5 3 Ascalon 8-18 0.6-2.0 0.13-0.15 6.6-7.8 <2 Moderate :Moderate Low 0.24 18-60 0.6-6.0 0. 11-0. 15 7.9-8.4 <2 Low :Moderate Low 0.24 10 0-4 2.0-6.0 0.09-0. 12 7.4-8.4 : <2 Low Moderate Low 0. 10 5 3 Bankard 4-60 6.0-20 0.05-0.08 7.4-8.4 ' <2 Low Moderate Low 0. 10 11 , 12 0-16 0.6-6.0 0.11-0.13 6.1-7.3 : --- Low Low Low 0.10 5 2 . Bresser 16-25 0.6-2.0 0.15-0.18 6.6-7.3 1 --- Low Moderate Low 0. 15 25-30 0.6-6.0 0.10-0.13 6.6-7.3 1 --- Low Low Low 0.10 p 30-60 2.0-20 0.05-0.08 6.6-7.3 : --- Low Low Low 0. 10 :Pay 1' _ 0-9 2.0-6.0 0.07-0.09 7.4-8.4 <2 Low :Moderate Low 0. 10 5 8 Able :ajo 9-31 6.0-20 0.05-0.08 7.4-8.4 <2 Low ',Moderate Low 0.10 'MIA 31-60 6.0-20 0.05-0.06 7.4-8.4 <2 Low Moderate ,Low 0.10 14, 15, 16, 17+2-.-- 0-7 0.6-2.0 0.20-0.24 6.6-8.4 <2 Low Moderate Low 0.37 5 4L e,;/ Colby 7-60 0.6-2.0 0. 17-0.22 7.4-8.4 <2 Low Moderate Low 0.37 18*: / Colby 0-7 0.6-2.0 0.20-0.24 6.6-8.4 <2 Low Moderate Low 0.371 5 4L 7-60 0.6-2.0 0.17-0.22 7.4-8.4 <2 Low Moderate Low 0.371 Adena 0-6 0.6-2.0 0.18-0.21 6.6-7.8 <2 Low Moderate Low 0.371 5 5 , 1—,' 6-9 0.06-0.2 0. 16-0. 18 6.6-7.8 <2 High High Low 0.24 '1 �i��1' ,,' 9-60 0.6-2.0 0.16-0.18 7.4-8.4 <2 Low High Low 0.32: 19, 20--_151-1.04 2_2__- 0-14 0.6-2.0 0.14-0.18 7.4-8.4 <2 :Low High Low 0.321 5 5 Colombo .....e, 14-21 0.6-2.0 0.14-0. 16 7.4-8.4 <2 ;Moderate High Low 0.28: ' "=o'u. 21-60 0.6-2.0 0.14-0. 16 7.4-8.4 <2 ;Low High Low 0.231 9.4. . )' 21 , 22 q°,.r- --+v--- 0-12 0.2-0.6 0.19-0.21 6.6-7.8 <2 Moderate ',Moderate Low 0.24 ; 3 5 Dacono 3 12-21 0.2-0.6 0. 15-0.21 7.4-8.4 <2 High :High Low 0.24 '1 r`6f 21-27 0.2-2.0 0.13-0.18 7.4-8.4 <2 Moderate ',High Low 0.15 , 14 y:'i) 27-60 >20 0.03-0.05 7.4-8.4 <2 Low High; Low 0.10 23, 24--2/9+ 0-7 0.6-2.0 0. 16-0.20 6.6-7.8 <2 Low :Moderate Low 0.20 5 6 Fort Collins 7-11 0.6-2.0 0.16-0.18 7.4-7.8 <2 Moderate Moderate Low 0.20 11-60 0.6-2.0 0. 16-0.18 7.4-8.4 <2 Low High Low 0.20 25, 26 0-4 0.6-2.0 0. 14-0. 18 6.6-8.4 <8 Low High Low 0.28 5 4L Haverson 4-60 0.6-2.0 0.14-0.18 7.4-8.4 <8 Low High Low 0.28 27, 28 0-60 0.06-0.6 :0.12-0.17 7.9-9.0 <8 :High High High 10.28 5 4 Heldt See footnote at end of table. 980612 132 SOIL SURVEY TABLE 14.--SOIL AND WATER FEATURES ' sence of an entry indicates the feature is not a concern. _ See text for descriptions of symbols and such terms as "rare," "brief," and "perched." The symbol < means less than; > means greater than] c High T—e T —, Flooding Hi h water_ table _--Bedrock_____ Soil name and Hydro- _ - Potential map symbol logic Frequency ; Duration ;Months I Depth ; Kind ;Months Depth:Hard- frost group ness action 1 , 2 B None --- --- >6.0 --- --- >60 --- Moderate. (ltvan 3* , quolls D Frequent---- Brief Apr-Jun 0.5-1 .0 Apparent:Apr-Jun >60 --- High. Aquents D Frequent---- Brief Apr-Jun 0.5-1 .0 Apparent:Apr-Jun >60 --- High. 4*: Aquolls D 'Frequent---- Brief Apr-Jun,0.5-1 .5 Apparent,Apr-Jun >60 --- High. Aquepts D Frequent---- Brief Apr-Jun 0.5-1 .5 Apparent;Apr-Jun >60 --- High. 5, 6, 7, 8, 9 B None --- --- >6.0 --- --- >60 --- Moderate. Ascalon i 10 A Frequent---- Brief Mar-Jun >6.0 --- --- >60 --- Low. Bankard 11 , 12 B None --- --- >6.0 --- --- >60 --- Moderate. Bresser 13 A None --- --- >6.0 --- --- >60 --- Low. Cascajo 14, 15, 16, 17---- B None - --- --- >6.0 --- --- >60 --- Low. Colby Colby B None --- --- >6.0 --- --- >60 --- Low. Adena C None --- // >6.0 --- --- >60 --- Low. 19, 20 B Rare --- V- >6.0 --- --- >60 --- Moderate. Colombo - 21 , 22 C None --- --- >6.0 --- --- >60 --- Low. Dacono 23, 24 B None to rare --- --- >6.0 --- --- ; >60 --- Low. Fort Collins 25, 26 B Rare to Brief May-Sep >6.0 --- --- >60 --- Low. Haverson common. 27, 28 ' C None --- --- >6.0 --- --- >60 --- Low. Heldt 29, 30 A None --- --- >6.0 --- --- >60 --- Moderate. Julesburg ; I 31 , 32, 33, 34---- B None --- --- >6.0 --- --- >60 --- Low. Kim 35*: Loup D Rare to Brief' Mar-Jun +.5-1 .5 Apparent Nov-May >60 --- Moderate. common. Boel A Occasional Brief Mar-Jun 1 .5-3.5 Apparent Nov-May; >60 --- Moderate. 36*: Midway D None --- --- >6.0 --- --- ; 10-20 Rip- Low. pable See footnote at end of table. 990612 Hello