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_ ':. :. (Page 2) NINE ID / OR PROSPECTING ID /. N-80-244 INSPECTION DATE 11-29-94 INSPECTOR'S INITIALS ACS OBSERVATIONS A monitoring inspection of the Phase 1 leach pad construction was conducted. Floating tank heaters had been installed to melt ice that has formed in the pregnant solution storage sump. The sump needs to be cleaned out and dried up to facilitate installation of the pregnant solution recovery risers. The earthworks contractor (Ames) was cutting the spillway into the "winterization" etormwater and enowmelt detention berm. The geoeynthetics contractor (Candle) was installing "sacrificial" VLDPE below and onto the "winterization" berm. Sacrificial liner ie being installed for the purpose of protecting certifiable or specification composite liner from stormwater or snowmelt impacts. Sacrificial VLDPE ie being installed on non-specification soil liner, and ie not being pressure or vacuum tested. it was determined, through discussions with Golder, that the sacrificial VLDPE panels installed are being recorded in the installation documentation with an asterisk (e.g. SM-303* or *SH-303), and the extent of certifiable or specification composite liner ie being surveyed. Also, the extent of certifiable composite liner will be marked in the field, ostensibly with a yellow line, and the sacrificial liner will not be covered by drain cover fill. It was observed that CQA personnel were writing "To Be Removed 1995" on sacrificial liner pane le. Drain cover placement was proceeding on the face of the Phase 1 tce berm. No problems were noted. The location where leak collection pipes are booted through the upper VLDPE liner was inspected, and found to be well completed. The upper VLDPE liner was carried up to the upper anchor trench at the leak collection trench alignment, eo even in the unlikely event that the pipe boots did leak, little problem would result because the boots are above the elevation of cyanide application. The earthworks contractor (Ames) was finish grading drain cover fill on the south aide of the leach pad, and was removing the PVC pipe grade markers in the area being graded. A location south of the pregnant solution sump was found to have a preponderance of oversize rocks in the drain cover fill. This was pointed out to colder, and the area was marked with green spray paint for repair. A familiarization tour of the diversion channel construction progress was completed in the afternoon. cc: Berhan Keffelew, DMG Carl Hount, DHG I 6 E Contact Address ^ CE NAHE John Hardaway ^ BL OPERATOR Crioole Creek 6 Victor Gold Co. ^ FS STREET P.O. Box 191 ^ HW CITY/STATE/EIP Victor, CO 80860 ^ HHWMD (CH) ^ SE ^ WQCD (CH) ^ OTHEA