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Q Geomembrane Exposure <br />No work performed during the week. <br />D) Geomembrane Acceptance <br />No work performed during the week. <br />IV)Storm Water Management <br />A) Best Management Practices (BMP) <br />Best Management Practices are being observed throughout the Mill Site Earthworks project. <br />CQA ACTIVITIES: <br />SUMMARY: <br />The CQA activities performed consisted of observing, documenting and recording the construction <br />activities of the contractor. <br />AMEC observed clear and grub activities performed by Seedmasters within the Mill Site Earthworks <br />project. <br />AMEC observed subgrade preparation within the Mill Site Earthworks project prior to overburden fill <br />placement. Subgrade temperatures were monitored prior to fill placement. <br />AMEC observed excavation and placement of overburden fill within the Mill Site Earthworks project. <br />Ambient, existing, and placed fill temperatures were monitored throughout the week. <br />AMEC observed slope contouring of placed overburden fill for the Mill Site Earthworks project. <br />AMEC observed remediation of UG #4008 (Morning Glory). <br />AMEC observed confirmatory drilling at UG #4073. <br />AMEC observed confirmatory drilling at UG #4074. <br />AMEC observed confirmatory drilling at UG #4077. <br />AMEC observed grouting of "missed" (non -void) drill holes at UG #4074. <br />AMEC observed remediation of UG #4078. <br />AMEC observed remediation of UG #4079. <br />AMEC observed investigation of UG #4080. <br />Testing Summary <br />Laboratory testing continued (Particle Size Distribution, Atterberg Limits, Moisture - Density Relations, <br />Specific Gravity, Permeability, and Point Load testing) for sampled materials. <br />MEW Weekly Report WE 04.21.2012 <br />