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ameol <br /> B) Underground Workings: <br /> Confirmatory drilling occurred at underground workings UG#6576 and UG#6588. Additional <br /> remediation is required. <br /> A dozer finished preparing working UG#6543 for geogrid placement. Two layers of geogrid and <br /> select structural fill were placed over the working. A select structural fill sample was collected <br /> from this location. The working is considered remediated. <br /> Underground working UG#6639 was blasted in association with production blasting. Further <br /> remediation is required. <br /> An excavator removed material from underground working UG#6641 to competent rock and <br /> backfilled the working per project specification. The working is considered remediated. <br /> C) Geomembrane: <br /> PSSA <br /> Primary 100-mil DSMS LLDPE Liner Installation <br /> ECA installed 100-mil LLDPE smooth geomembrane at the east slope of PSSA from the 9,450' <br /> elevation bench to the PSSA floor. Panels P-144 through P-213 were deployed on approved <br /> LVSCF. Fifty full rolls and multiple partial rolls of 100-mil LLDPE smooth geomembrane were <br /> deployed yielding 17,968 lineal feet of fusion welds for an approximate installed weekly total of <br /> 328,174 square feet. Quality control was performed using two extrusion guns. All seams were <br /> fusion welded per project technical specifications. All work performed was observed by AMEC <br /> QA personnel. <br /> Approximately 1,460 lineal feet of anchor trench was backfilled over primary liner and compacted <br /> per project specifications. <br /> Destructive samples PDX-2 and PDF-47 through PDF-80 were marked for testing. PDF-28, PDF- <br /> 29, PDF-32, PDF-33, and PDF-36 through PDF-78 were tested and passed per project technical <br /> specifications. <br /> D) Low Volume Solution Collection Fill (LVSCF): <br /> PSSA <br /> Cat 740 trucks hauled LVSCF to the PSSA. Haul roads for the trucks were maintained at least 4 <br /> feet above secondary geomembrane. <br /> Ames continued placing LVSCF on approved secondary liner in minimum 3-foot lifts with Cat <br /> GPS D6 and D8 wide pad dozers between panels S-144 to S-145; S-169 to S-170; S-173 to S- <br /> 174; S-175 to S-176, S-182 to S185; S-186 to S-190, S-196 to S-199, S-222 to S-229; S-232 to <br /> S-233; S-236 to S-247; S-248 to S-267; S-269 to S-275; S-276 to S-294; S-302 to S-317; S-320 <br /> to S-324; S-332 to S-333; S-348 to S-354; S-355 to S-359, and S-365 to S-369. <br /> Low volume fill was also feathered into the 9,450' elevation bench on approved secondary liner <br /> from approximate stations A10+00 to Al2+00 and B16+00 to A22+00 (across the ADR haul road) <br /> using a 312 excavator and labors. <br /> See the attached LVSCF map for all placement locations. <br /> E) Drain Cover Fill (DCF): <br /> Ames installed the center and end HVSCS vertical riser plate sections in the PSSA sump for the <br /> HVSCS header. <br /> 2014 09 13-MLE2 WEEKLY FINAL Page 3�)f 7 <br />