Laserfiche WebLink
<br />Setting: The Fondis series occurs on nearly level table- <br />lands or gently sloping uplands. Slopes typically range <br />from 0 to about 6 or more percent. The soil is develop- <br />ing in thin aeolean materials I to 2 feet in thickness <br />overlying coarser textured outwash materials derived <br />from arkose deposits of the Denver and Arapahoe or <br />similar formations. At the type locations the average <br />annual precipitation is 14 inches with peak periods of <br />precipitation occurring in the spring and early summer <br />months. Mean annual air temperature is 47' F, mean <br />summer air temperature is 69" F, mean annual soil <br />temperature is 50' F, and mean summer soil tempera- <br />ture is 70' F. <br /> <br />Exhibit 2 <br /> <br />Principal Associated Soils: These include the Buick <br />and Weld series. The Buick series differs in having <br />ochric epipedons and in being coarser textured. The <br />Weld series differs in having siltier lower solums and C <br />horizons and in having thinner solums that do not in- <br />cude buried soils. <br /> <br />Drainage and Permeability: Well drained. Runoff is <br />slow to medium. Permeability is slow to moderately <br />slow. <br /> <br />Use and Vegetation: They are used as native pasture- <br />land or for dry or irrigated cropland. Native vegetation <br />includes short and tall grasses and brush. <br /> <br />Distribution and Extent: Present known distribution <br />limited to eastcentral Colorado. The series is of moder- <br />ate extent. <br /> <br />ENGINEERING TEST DATA FOR SOIL SAMPLES <br />TAKEN FROM <br />DOUGLAS COUNTY, COLORADO <br /> <br /> SCS Moisture-densitv2 <br />Soil name and location Parent material Report No. Depth Horizon Max imum Optimum Specific gravity <br /> dry density moisture <br /> Inches Lb./cu.ft. Percent <br />Fondis Clay Loam: S63Co1018 <br />122 ft. W of SE Outwash & Aeolian 4-4 12-24 B22t 101 22 2.67 <br />cor. Sec. 19, TSS, (Quarternary Age) 4-6 26-45 IlB2cat 100 22 2.65 <br />R66W Cusner 4-8 57.70 IICea 97 24 2.67 <br />285 ft. W & 360 It. Same 3-4 13-19 B22t 97 22 2.67 <br />5 of NE cor. See. 5, 3-6 24-35 IIB21cat 99 23 2.66 <br />T9S. R65W 3-8 55-72 II B3cat 98 21 2.67 <br /> <br />Fondis Clay Loam continued. . . . . . . . . . . . . . . . . <br /> <br /> Mechanical Analysis3 Classification <br /> Percentage passing sieve Percentage smaller than Liquid Iastici~ AASH04 Unified5 <br /> limit index <br />No.4 Jl No.1~)11 No. 40.11 No.50.l1 No.200 0.05 mm'IO.02 mm'lo.OO5 mm.l. 0.002 mm. <br />4.7 mm.l (2.0 mm.l 10.42 mm.1 (0.25 mm.J (0.074 mm.) <br /> 100 99 89 61 52 30 A-7-6(181 CH <br />100 97 90 78 :z; 51 29 1A-7-6(18) CH <br />100 98 91 80 Y 51 27 IA-7.6111l CH <br />100 99 97 91 61 57 35 A-7-6(19) CH <br />100 99 93 81 56 52 30 IA-7-6(8) CH <br />100 99 93 79 54 58 30 1A-7-6l191 CH <br /> <br />21 <br />