Agenda - 03-20-2001-9c - Laserfiche WebLink

Browse Search

U.S. GEPARTNU'sNT OF AGRICULTURE NATURAL RESOURCES CONSERVATION SERVICE SANITARY FACIL;TIES Endnote -- SANITARY FACILITIES--ConCinued FAGS 3 OF 3 10/30/00 on soil properties, site features, and observed performance of Che voile. Permeability, depth to bedmck az Co a cemented pan, a high wafer table, elope, and flooding affeeC both types of landfill. Texture, scones and boulders, highly organic layers, soil reaction, and contenC of salts and sodium affect trench Cype landfills. Unless otherwise stated, Che ratings apply only to Chat part of Che soil within a depth of about 6 leeC. For deeper trenches, a limitation rate "Slight" or "Moderate" may not be valid. Onelte imeatigaCion is needed. QAILY COVER FOR LANDFILL is Che -soil material thaC ie used to cover compacCed solid waeCe in an azea type sanitary landfill. The Boil material is obCained affsite, Craneported to the landfill, and spread over the waste. Soil texture, weCnese, coarse fragments, and elope affecC the ease of removing and spreading the material during wet and dry periods. Loamy or silCy voila that are free of large atones or excess gravel are the heaC cover for a landfill. Clayey soils may he sticky or cloddy and are difficult to spread; sandy soils are subject to soil blowing. After soil material hoe been removed, Che soil material remaining in the borrow area must be Chick enough over bedrock, a cemented pan, or the water Cable Co permit revegeCation. The soil material used as final cover for a landfill should be suitable Poz plants. The surface layez generally has Che beat workability, more organic matter than the zest of the profile, and the beet potential for plants. Material from the outface layer should be etoakplled for use as Che final covet.