GENERAL34324 - Laserfiche WebLink

Home Browse Search

VoA- Vona loamy sand, 0 to 3% slopes. The soils are well drained, nearly level to moderately sloping soils on terraces uplands. The soils formed in wind-deposited sand material. In a representative profile, the surface layer is light brownish-gray loamy sand about 9" thick that is noncalcareous. The subsoil is pale-brown coarse sandy loam about 13" thick that is noncalcareous. The underlying material is light yellowish-brown sandy loam and very pale brown, highly calcareous loamy sand that contains lime visible as splotches. The soils absorb water very rapidly, the available water capacity is moderate, and permeability is rapid. Surface runoff is moderate to slow, and the hazard of water erosion is slight. Wt- Wet alluvial land is on the nearly level lands of larger streams next to stream channels through the County. This land type is wet most of the year, and flooded by streamflow once to several times a year during periods of high water. The materials are extremely variable in texture; they consist of stratified layers ofdark-colored silt, loam, and clay. The layers are less than 6" thick and are underlain by sand, tree sand, and some gravel at depths of 1 to 3'. They are wet at depth of 2 feet most of the time and are commonly wet to the surface through the growing season. Areas of this land type often have a vegetative cover of water tolerant plants, such as cattails and sedges, and are not suitable for cultivation because of the hazard from streams and a high water table. Per a request from the DMG Staff, representative soil cores taken on the western portion of the property (Cooley Reservoir area) demonstrating the depth to shale averages 30± feet, and that a minimum overburden topsoil layer of 1 foot was present throughout the site. This was for the DMG Staff to confirm the calculations related to slurry wall depth and material for revegetation. /tem #24 3