2013-08-23_REPORT - M1980244 (3)

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i I Clay (SLF) Processing: Cameron Site: No clay mining occurred during this reporting period due to a saturated site from previous rains. However Clay processing continued from the clay stockpile and SLF sample No. 42 and No. 43 were obtained and returned to our Laboratory for gradation analysis and permeability testing. Squaw Gulch Site: No work occurred at the VLF clay borrow site during this reporting period. Underdrain System: Secondary Underdrain: No worts was performed on the Secondary underdrain during this reporting period. A total of 1380 feet of Secondary underdrain has been completed. Primary Underdrain: No work was performed on the Primary underdrain during this reporting period. A total of 1280 feet of Primary underdrain has been completed. Temporary Underdrain: Temporary underdrain pipe is installed thru the embankment. No other work occurred during this reporting period. Tree /Slash Clearing, Chipping: Seed Masters resumed operations during this reporting period and is expected to continue chipping stockpiled trees and slash within the VLF area. B) Underground Workings Confirmatory drilling was not performed during this reporting period.. During this reporting period exploratory excavation was performed on UG working No. 6146, No. 6188, No. 6193, No. 6196, No. 6204, and No. 6205. Sites listed continued further investigation excavation into bedrock as remediation continues or completed during the reporting period as specified. It should be noted: A total of 30 underground workings were located within the previously graded slope from "E" bench, 9650 elevation to the west perimeter road. 29 of the workings were shallow workings and were removed during the site grading consisting of cut and are considered remediated. One working will be evaluated as the working is described as a timbered shaft. A walk through of the planned Phase 2 Diversion ditch was conducted to locate potential workings, which may require remediation. During this reporting period remediation efforts were performed and completed on UG working No.6147, No. 6187, No. 6193, No. 6206, No. 6238 and No. 6239. Sites listed were excavated to practical refusal into rock varying depths depending on the working remediated. The site for each working was then backfilled 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 and are considered remediated as specified. Q Highway 67 Page 2 of 5 MLE2 WE 07.20.13.doc