Laserfiche WebLink
10129;1999 11:18 F:1_X 1719256~J09 <br />They have moderate to moderately slow <br />permeabilities and dre well drained. <br />These soils usually have a Unified <br />Engineering classification of ML or <br />CL having low to moderate liquid <br />limits and plasticity indexes. Dry <br />bulk densities range from 80 to 100 <br />pounds per cubic foot. Standard <br />penetration blow counts ranged from <br />four to eight when the soils were <br />moist. <br />• SOB <br />These soils have low to moderate <br />bulk densities, low to moderate bear- <br />ing strengths and low to moderate <br />Shrink-swell characteristics. These <br />engineering characteristics should <br />pose no problem for light, one story <br />dwelling structures; however, they <br />should be considered when designing <br />foundations. Other than the above <br />considerations, these soils are gen- <br />erally well suited for high density <br />residential development. <br />The HEW Standard percolation rate <br />at 48 inches ranged from 4.3 to 21.4 <br />minutes per inch. <br />Based on the soil taxonomy of the <br />National Cooperative Soil Classifi- <br />cation System, these soils are clas- <br />sified as fine loamy, mixed family <br />of Typic Cryoborolls. The soil <br />temperature regime is frigid and <br />the moisture regime is aridic. <br />Yegetation consists of short and <br />mid cool season grasses and sage <br />brush. <br />Soil Area 5 <br />Soils in this area are deep looms <br />and clay looms and are usually not <br />underlain by bedrock within 10 feet <br />of the surface. Soils in this area <br />occur on gentle to moderate slopes. <br />They have moderate to moderately Slow <br />permeabilities and are well drained. <br />These soils usually have a Unified <br />Engineering classification of ML or <br />C1, having low to moderate liquid <br />Broad flats of Soil Areas 9 and 5. LOV Mils in background are <br />mainly Soil Area 3. The Sangre de Cristo Moill7tainS are in the <br />far background. (Mapped as gma on the Geology Hap.) <br />17 <br />