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Construction Quality Assurance( )Plan Extension of Closure Cap <br /> Corral Hollow Sanitary Landfill August 21,2008 <br /> 3.2.5 Soil Sample Processing <br /> The CQA Monitor is responsible for the timely processing of soil test samples. The <br /> CQA Manager also determines which samples are tested on-site and which are tested <br /> off site. The determination is made based on manpower available, equipment <br /> available, complexity of test, and time available for results. For expediency, samples to <br /> be tested off site will be shipped the same day as they are obtained. <br /> 3.3 Field Density Tests <br /> 3.3.1 Test Numbering <br /> The CQA Monitor is responsible for maintaining test numbers and results for field <br /> density tests performed by the nuclear moisture density method (ASTM D2922). All <br /> other testing is identified through the sample number (Section 3.2.3). The CQA <br /> Monitors will maintain field books that identify soil segments, data tested, CQA <br /> Monitor performing the test, and sequential test number. Each soil segment will have <br /> a series of numbers as listed below. No test number can be repeated for a given soil <br /> segment, and re-tests of failing tests must be given a letter suffix along with the <br /> original test number (i.e., re-tests for a failing Test 1201 would be: 1201A, 1201B, etc.). <br /> 3.3.2 Test Locations <br /> The intention of the CQA program is to provide confidence that the earthwork <br /> materials and work conform to the technical specifications. To meet this intent, the <br /> CQA Monitor will perform density tests of earthfills, foundation layer, and any other <br /> soil products used during construction and as required by the technical specifications. <br /> Density tests must be located at various elevations and uniformly dispersed <br /> throughout the entire plan dimensions of the fill. All density test locations shall be <br /> identified on the log using site specific northing and easting coordinates measured from <br /> known landmarks within the project area, and an estimate of the surface elevation of <br /> the test. Density test locations must be chosen without bias; however, additional <br /> testing can be performed in any areas that are suspect, marginal, or appear to be of <br /> Vector Engineering, Inc. .143E Spring Hill Drive•Grass Valley, CA® (530)272-2448 <br /> -18- <br />