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osiaioo <br />SANITARY FACILITIES <br />Endnote -- SANITARY FACILITIES--Continued <br />on soil properties, site features, and observed performance of the soils. Permeability, depth to bedrock or to a <br />cemented pan, a high water table, slope, and flooding affect both types of landfill. Texture, stones and boulders, <br />highly organic layers, soil reaction, and content of salts and sodium affect trench type landfills. Unless otherwise <br />stated, the ratings apply only to that part of the soil within a depth of about b feet. For deeper trenches, e <br />Limitation rate "Slight" or "Moderate" may not be valid. Onsite investigation is needed. <br />DAILY COVER FOR LANDFILL is the soil material that is used to cover compacted solid waste in an area type sanitary <br />landfill. The soil material is obtained offsite, transported to the laMfill, and spread over the waste. <br />Soil texture, wetness, coarse fragments, and slope affect the ease of removing and spreading the material during wet <br />and dry periods. Loamy or silty soils that are free of large stones or excess gravel are the best cover for e <br />landfill. Clayey soils may be sticky or cloddy and are difficult to spread; sandy soils are subject to soil <br />blowing. After soil material has been removed, the soil material remaining in the borrow area must be thick enough <br />over bedrock, a cemented pan, or the water table to permit revegetation. The soil material used as fineL cover for a <br />lendfili should be suitable for plants. The surface Layer generally has the best workability, more organic matter than <br />the rest of the profile, and the best potential for plants. Material from the surface layer should be stockpiled for use <br />as the final cover. <br />