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amec6�' <br />SLF Processing: <br />Cameron Site: No soil liner fill mining or processing occurred at the Cameron Site. <br />Approximately 244,860 tons of SLF material has been produced and remains stockpiled at the <br />Cameron Site for future use. The soil liner fill processing equipment was transferred back to the <br />Cameron site. No new processing during this reporting period. <br />Underdrain System: <br />Primary Underdrain: Complete. <br />Secondary Underdrain: No work was performed on the secondary underdrain. <br />Tertiary Underdrain: Complete in PSSA footprint. <br />B) Underground Workings <br />Confirmatory drilling of underground workings #6606 and 46631 was completed. Additional <br />remediation is required. <br />Coarse shaft backfill of underground working #6446 began. Additional remediation is required. <br />Began geogrid placement at underground working #6119. Additional remediation is required. <br />Coarse shaft backfill of underground working #6579 was completed on the main portion of the <br />shaft. Drill access will be provided. Additional remediation Is required. <br />Underground workings #6152, #6451, #6511, #6512, #6616 and #6621 were excavated to <br />competent rock, backfilled according to project specifications, and are considered remediated. <br />C) Geomembrane: <br />PSSA <br />Geomembrane installation within the PSSA continued this week performing deployment, <br />seaming, repair, and QA/QC activities. Geomembrane installation was performed at the ADR <br />pad, PSSA closure drain slopes and PSSA west slope. Approximately 253,634 square feet of <br />100mil LLDPE geomembrane was deployed. Subgrade was inspected and approved by AMEC, <br />Ames and ECA representatives prior to geomembrane deployment. Approximately 11,711 linear <br />feet of seam was fusion welded during deployment using one or two fusion welding machines for <br />each day of deployment. Destructive and non - destructive testing was completed per technical <br />specifications. <br />Ames continuously excavated anchor trench ahead of geomembrane installation. After <br />geomembrane testing was completed, the anchor trench above finished panels was backfilled <br />and compacted to project specifications. <br />Secondary liner panels S -11 thru S -130 and panels S -151 thru S -163 (secondary 100mil LLDPE <br />—341,783 ft2) were accepted and approved for low volume placement by AMEC, Ames and ECA <br />representatives during this reporting period. Additional repairs may be required prior to <br />placement of low volume solution collection fill (ie. wrinkle removal, sub -liner rock repair). <br />II) Storm Water Management <br />Best Management Practices (BMPs) are being performed. <br />2014.06.2 "le2 weekly final Page 3 of 7 <br />