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<br /> <br />1 <br />1 <br /> <br /> <br /> <br /> <br />1 <br />Ssn Luis Project Phase nRaise I Expansion - Pfnal Conswction Report <br />Drawing 14719-102 depicts the Type 3 material field permeability test locations. A summary of all <br />QA/QC test results for Type 3 material aze included in Appendix C.3. <br />6.2.4 Miscellaneous Fill <br />Miscellaneous fill, material Type 4, utilized during construction of the facility ezpansion generally <br />consisted of silty sand and gravel similaz to the raise fill material. <br />In fill areas where off-site materials were introduced, moisture conditioning to within + or - 2 <br />percent optimum moisture prior to compaction by a minimum of two passes with a vibrating <br />sheepsfoot compactor assured that the specified density was reached. <br />QA/QC testing of this material consisted of gradation analyses and insitu density measurements. <br />These test results are contained in Appendix C.4. <br />' A total of 84 Insitu density tests were taken with only one failing test. The failing test exhibited a <br />density which was 94 percent of maximum dry density as opposed to the required 95 percent. This <br />material was recompacted and passed the density re-test. <br />' 6.3 Liner <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br />QA/QC monitoring of the liner and liner installation indicated a high quality installation. All liner <br />materials supplied by the manufacturer have met the required specifications as verified by an <br />independent thud party testing laboratory. <br />VLDPE liner panels were seamed utilizing hot wedge welding methods. The liner seams were <br />subjected to destructive and non-destructive testing as part of the QA/QC prog>tam implemented. <br />Destructive seam sampling wnsisted of a sample of the actual field seam which was subjected to <br />laboratory testing for peel and sheer. These samples were collected at a minimum of one sample <br />for every 500 ft of seam. Non-destructive seam testing consisted of vacuum or stir pressure testing <br />performed over the entire length of the seam. <br />There were only 6 destructive seam sample failures out of 192 test runs. In the event that a <br />destructive seam sample failed, additional samples were obtained from the seam 10 k away on both <br />aY 16 Ject o. <br /> <br />