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t¢ <br />"'V erne <br />Underground workings UG #6320 and UG 46334were prepared for and plugged with concrete. <br />Unknown workings UG #U6429, #U6398, and #06436 were located within the clay plant relocation stockpile. They <br />will require further investigation. <br />Drilling access was made to workings UG #U6424 and UG #6274 for confirmatory drilling at a later date. <br />Underground workings UG #U6394, UG #6434, and UG #6435 were removed during slope grading and are <br />considered remediated. <br />Working UG #U6436 is located within the existing haul route. The site was investigated and a void was removed. <br />The void was located within fill placed to provide haul route access. The site was backfilled. Once the slope is cut <br />to grade, the site will be re- investigated to ensure nothing is present. <br />At working UG # U6334 (formerly U6394) a timbered drainage culvert was removed for approximately 100 lineal <br />feet. The drainage culvert terminated at an apparent sediment pond and wooden drop structure. An appreciable <br />amount of organic silt and some trash were found and removed. The working is considered remediated. <br />C) Historical Crib Wall 1 South MSE Wall: <br />On February 13, 2014 the dismantling of the historic crib wall was completed. <br />The final sets of timber - panels were placed at the South MSE wall. Ames anchored the timber panels to the <br />concrete leveling pad at the base of the wall using a two part Hilti 200 epoxy and #5, grade 60, epoxy coated rebar <br />with a 5 -inch minimum embedment depth. The top of the timber panel facade needs to be anchored to the MSE <br />wall to complete the installation. <br />it) Storm Water Management <br />Best Management Practices (BMP) is being performed. Erosion control efforts took place during this reporting <br />period following any precipitation (runoff from melting snow and ice). <br />CQA ACTIVITIES: <br />i) 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; Production <br />drilling and blasting; Timber panel installation and anchoring at the South MSE Wall, and Rip Rap, Clay Soil Liner Fill <br />(SLF) and Drain Cover Fill (DCF) processing. <br />11) Laboratory Activities: Laboratory testing continued with Permeability, Particle Size Distribution; Atterberg Limits, <br />Moisture - Density, gradations, material classification, identifications, and field material sampling were performed during <br />this reporting period. <br />DCF Sample 56 and 57 were collected and returned to Amec's laboratory for analysis. <br />SLF Sample Number 108 -S and 109 -S were collected and returned to Amec's laboratory for analysis. <br />OF Sample Number 6 -R and 7 -13 were collected and returned to Amec's laboratory for analysis. <br />SSF Sample Number 10 -R was collected and returned to Amec's laboratory for analysis. <br />Note: Samples labeled with the suffix "R" are samples of Record f QA samples; those without are QC samples. <br />Page 3 of 7 MLE2 WE 22 Feb14.doc <br />