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August 2002 -3- 003-2203 <br />• performed CQA laboratory testing of grain size, Atterberg limits, and <br />moisture content of the Underdrain Fill (UF) and SSF placed in the <br />Underdrains. <br />- Golder monitored construction of the Leak Detection Trench (LDT) and <br />the Leak Detection Sump (LDS), including verification that Ames <br />excavated the trench to minimum required dimensions and placed <br />materials as specified. Golder performed CQA laboratory testing of grain <br />size, Atterberg limits, and moisture content of the Leak Detection Fill <br />(LDF) placed in the LDT. <br />- Golder monitored site grading. Golder monitored slope reduction fill and <br />fill placement, including lift thickness, moisture conditioning, <br />temperatures, compactive effort, and use of suitable material for SF. <br />Golder performed CQA laboratory testing of grain size, Atterberg limits, <br />and moisture content of SF. <br />- Golder visually monitored subgrade preparation to confirm that the <br />subgrade surface was unyielding; free of organic matter and other <br />unsuitable materials, and that the subgrade surface was compacted prior to <br />Soil Liner Fill (SLF) placement. <br />• - Golder visually monitored the placement and compaction of SLF including <br />observation of depth verification performed by Ames, particle size, <br />moisture conditioning, and compaction of the fill. Golder performed <br />in-place density and moisture content testing, and performed CQA <br />laboratory testing of grain size, moisture content, Atterberg limits, <br />compaction, and permeability. Golder also provided visual monitoring of <br />the SLF surface prepazation and moisture conditioning for geomembrane <br />deployment, including verification that the surface was proof-rolled, <br />compacted, and hand-worked so as to be free of desiccation cracks, abrupt <br />grade changes, and sharp stones or objects. Golder also observed the <br />backfill and compaction of the anchor trenches. <br />- Golder visually monitored the placement of Drain Cover Fill (DCF) in the <br />OSA, including verification of lift thickness and grade control, <br />identification of deleterious materials, and verifcation that care was <br />exercised in fill placement to avoid geomembrane damage. Golder <br />performed CQA laboratory testing of grain size, Atterberg limits, and <br />moisture content of DCF. <br />- Golder monitored the ambient air temperatures and the temperature of all <br />fills, including SLF, in accordance with project specifications. <br />• <br />cwouzozioaomcwe~,ososoozzzo3.oaoo oa~aoacao~ Golder Associpfes <br />