2013-05-20_REPORT - M1980244 - Laserfiche WebLink

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ameC�iF Secondary Underdrain: No work was performed on the Secondary underdrain during this reporting period. A total of 1380 feet of underdrain has been completed. Primary Underdrain, An Amec field representative observed the Primary Under drafn construction and placement of the 8 inch PCEP pipe. Approximately 300 feet of pipe was installed during this reporting period. A total of 863 feet of Primary underdrain has been completed. Tree /Slash Clearing, Chipping: Seed Masters: No work during this reporting period. B) Underground Workings During the reporting period exploratory excavation was performed on UG working No. 6019, No. 6030 and No. 6051. These sites will continue with excavation into bedrock as remediation Is completed as specified. During this reporting period remediated sites were performed on UG working No. 6047. Sites listed were excavated to practical refusal into rock varying depths depending on the working remediated. The site for each working was then backfilied in 2 foot loose lifts to approximate planned subgrade elevation using the onsite structural fill (excavated material) and `bucket tamped" with the back of the CAT 330 excavator bucket. All backfill material was free of organic material, ice and snow. Confirmatory drilling continued during the reporting period on UG Working No. 6120 and No. 6123. All drill locations were spaced on 4( + / -) foot centers and drilled to specified depth. Exploratory excavation will continue until remediation has been performed. Blasting occurred on UG Working No. 6112 and 6113. Further excavation will continue. Q Highway 67 MHT #2 Is in place and Is working properly. No other work was performed for the existing HWY 67 crossing during this reporting period. If) Storm Water Management A) Best Management Practices (BMP) are being performed. Inspections continue and there have been no issues identified. CQA ACTIVNIES: I) Field Activities: Construction activities and observation of clearing and grubbing, VLF Phase I fill and compaction, underground workings, HWY 67 embankment fill progress observation were some of the tasks performed in the field as required per project specifications. II) Laboratory Activities: Laboratory testing continued (Permeability, Particle Size Distribution, Afterberg Limits, Moisture- Density, gradations and material identifications) were some of the laboratory testing performed during this reporting period as required to project specifications. Page 2 of 6 M LE2 WE 04.20. i 3.doc