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amec <br />Cameron Site: No SLF mining or processing occurred at the Cameron Site. Approximately <br />244,860 tons of SLF material has been produced to date and remains stockpiled at the Cameron <br />Site for future use. The processing equipment remains at the Cameron site. No new processing <br />was performed during this reporting period. <br />Underdrain System: <br />Primary Underdrain: Complete. <br />Secondary Underdrain: No work was performed during this reporting period. <br />Tertiary Underdrain: Complete within the PSSA footprint. <br />B) Underground Workings <br />Underground workings #6581, #6582, #6583, #6584 #6586, #6587, and #6588 (all shafts) were <br />found to be connected. Confirmatory drilling continued. Additional remediation is required. <br />Underground workings UG #U6637 and UG #U6638 were blasted, excavated, backfilled per <br />project technical specifications, and are considered remediated. These underground workings <br />were blasted in conjuction with the production blasting for the waterline. <br />Confirmatory drilling occurred at underground workings UG #U6461, UG #U6462, and UG <br />#U6639. Additional remediation is required. <br />Underground workings UG #U6551 and UG #U6543 were prepared for concrete plugs. <br />Additional remediation is required. <br />UG #U6633 was excavated 10 feet to competent rock. Further remediation is required. <br />Ames placed an additional 383 cubic yards of coarse shaft backfill in underground working UG <br />#U6153. Additional remediation is required. <br />Underground working UG #6632 was excavated to competent rock, backfilled per project <br />technical specifications, and are considered remediated. <br />Geomembrane: <br />PSSA <br />Primary 100 -mil DSMS LLDPE Liner Installation <br />Soil liner fill was used to backfill over the primary liner in the anchor trench located in the <br />southeast corner of the ADR platform. The backfill was placed and compacted per project <br />technical specifications. <br />ECA continued performing quality control using one extrusion gun at the ADR pad platform. All <br />work performed was observed by AMEC Quality Assurance (QA) personnel and was completed <br />in accordance with project technical specifications. <br />Secondary 100 -mil SSMS LLDPE Liner Installation <br />ECA continued installing 100 -mil LLDPE SSMS geomembrane at the PSSA eastern, western, <br />northern slopes and northern floor. Panels S -307 through S -350 were deployed during the week. <br />Panels S -215 through S -219, S -244 through S -247 and S -276 through S -291 were fully deployed <br />from the ADR haul road towards the PSSA floor. Fourteen full rolls and multiple partial rolls of <br />100 -mil LLDPE SSMS geomembrane were deployed yielding 8,588 lineal feet of fusion welds for <br />an approximate installed weekly total of 154,274 square feet. Quality control was performed <br />using up to two extrusion guns. ECA performed a large cap repair over the temporary drain line <br />2014.08.23 -MLE2 WEEKLY FINAL Page 3 of 8 <br />