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Construction Quality Assurance A)Plan Extension of Closure Cap <br /> Corral Hollow Sanitary Landfill August 21,2008 <br /> 3.0 CONSTRUCTION QUALITYASSURANCE FOR EARTHWORK <br /> 3.' Introduction <br /> This section describes CQA procedures for earthwork operations. The scope of <br /> earthwork and related construction quality assurance includes the following elements: <br /> ♦ Clearing and Stripping <br /> ♦ Engineered Fill <br /> ♦ Liner Subgrade Preparation <br /> ♦ Vegetative Cover Layer <br /> ♦ Trenching, Bedding, and Backfilling <br /> 3,2 Earthwork Construction Testing <br /> 3.2.1 Test Standards <br /> The following test standards apply as called out in this Plan or the technical <br /> specifications: <br /> Standard Test Description <br /> ASTM D1556 Density of soil in-place by the sand-cone method <br /> ASTM D1557 Moisture-density relations of soils <br /> ASTM D422 Particle size analysis of soils <br /> ASTM D2922 Density of soil and soil-aggregate in-place by nuclear <br /> methods <br /> ASTM D3017 Moisture content of soil and soil-aggregate-in-place by <br /> nuclear methods <br /> ASTM D2216 Laboratory determination of water (moisture) content of <br /> soil, rock, and soil-aggregate mixtures <br /> ASTM D4318 Atterberg limits <br /> ASTM D1140 Amount of material in soils finer than the No. 200 sieve <br /> ASTM D2487 Classification of soils for engineering purposes <br /> ASTM D2488 Description and identification of soils (visual-manual <br /> procedure) <br /> Vector Engineereng, Inc. 143E Spring Hill Drive eGrass Valley, CA (530)272-2448 <br /> -15- <br />