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amec- <br />Shot rock was removed and approximately 150 yds3 of 4,000 PSI concrete was placed in underground working <br />#U6273. Concrete cylinders were made for laboratory determination of strength. Additional remediation is required. <br />11) Storm Water Management <br />Best Management Practices (BMP) is being performed. Erosion control efforts took place during this reporting <br />period following any precipitation. <br />CQA ACTIVITIES: <br />t) Field Activities: Observation of construction activities during this reporting period included: Slope grading and fill <br />placement; Ambient and fill temperature monitoring and recording; Underground working remediation and confirmatory <br />drilling; Production drilling and blasting; Testing and sampling of UF, SLF, DCF and concrete from UG U6273; and <br />Tertiary underdrain installation. <br />11) Laboratory Activities: Laboratory testing continued with Permeability, Particle Size Distribution, Atterberg Limits, <br />Moisture - Density relationships, gradations, material classification, identifications, and field material sampling were <br />performed during this reporting period. <br />The following samples were collected and returned to AMEC's laboratory for analysis <br />➢ Underdrain Fill sample number OF -10R <br />➢ Drain Cover Fill sample numbers DCF 71 through DCF 74 <br />Soil Liner Fill sample number SLF 135 -S through SF -138 -S <br />y Concrete cylinders were made for compressive strength testing from underground working #6273 <br />Note: Samples labeled with the suffix "R' are samples of Record / QA samples; those without are QC samples. <br />General Project Items <br />Meetings and Discussions: <br />An underground working meeting regarding the remediation of the Anaconda Mine Complex was held between <br />AMEC, Ames, and CC &V on April 21, 2014. <br />The Contractor Meeting occurred on April 23, 2014 with CC &V Projects, AMEC, and Ames. <br />Summary of Concerns: None. <br />CC &V: Daily updates, reporting and scheduling are some of the tasks occurring between CC &V Projects, AMEC, and Ames. <br />Miscellaneous: <br />Drain cover fill processing continued. <br />Rip rap processing continued. <br />Deliveries: None <br />Submitted by: Eric Lorenson Date: 04 -29 -2014 <br />Reviewed By: - f Date: 04 -29 -2014 <br />Tim Burkhard <br />Project Resident Manager <br />Phone: 719,689, 2986 <br />Approved By: i <_ <br />CC &V Projects <br />Page 3 of 6 <br />4/3d/ 1y <br />MLE2 WE 26 April2014.doe <br />