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As-Built CQA Report for the Construction of Area 2A at the Foothill Sanitary Landfill <br /> San Joaquin County,California <br /> ASTM Test Minimum Test No. of TestsParameter Method Frequency Required Performed• <br /> Particle Size Analysis D422 Every 10,000 cu.yds. 2 10 <br /> Atterberg Limits D4318 Every 1,500 cu.yds 13 19 <br /> Laboratory Compaction D1557 Every 3,000 cu.yds. 7 7 <br /> In Place Moisture and Density D6938 Every 250 cu.yds. 73 85 <br /> Nuclear <br /> In Place Moisture and Density D1556 Every 5,000 cu.yds. 4 8 <br /> Sand Cone <br /> Clod Size I D2488 Continuous NA NA <br /> Thickness I Survey 50-ft grid NA NA <br /> A summary of field compaction test results for the foundation soil layer is presented in Table 2. <br /> Laboratory test data sheets are included in Appendix E.2. The field density test locations are shown <br /> on Figure 6. Survey data on as built foundation layer thickness are provided in Appendix D.2. The <br /> ranges and averages of the field and laboratory test results are summarized in the following table: <br /> Parameter Range Average Specifications <br /> Fines Content % Passing#200 Sieve 37 to 43 40 30* <br /> Liquid Limit 28 to 36 32 - <br /> • <br /> Plasticity Index 5 to 15 8 - <br /> In Situ Dry Density(pco 87.3 to 104.1 94.9 <br /> In Situ Moisture Content % 19.0 to 26.7 22.3 - <br /> Moisture Content Relative to 0 timum % -0.3 to+4.3 +1.7 0 to+4 <br /> Percent Compaction 90 to 100 94.9 >_90 <br /> Note: * Fines content per CQA Manual. Reported fines contents are on representative samples of in-place <br /> material. <br /> Prepared foundation layer was kept moist to prevent desiccation cracking until it was covered with <br /> geosynthetic material. <br /> • <br /> P:114 Projects114-101(SJCDPW North County and Foothillffoothill CQMReporffinal ReportToothill CQA Rport-Final.docx <br /> 15 <br />