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• (Page 2) ~ MINE ID # OR PROSPECTING ID # M-94-117 / INSPECTION DATE 8-21-97 INSPECTOR'S INITIALS GC OBSERVATIONS This was a monitoring inspection conducted to monitor the status of the spray evaporation and land application systems and the Hazel-A adit. No one was on-site for the operator. Bob Mason stopped by during the inspection. The weather was partly cloudy but there was no precipitation. Tailings Pond There was approximately 17 inches of freeboard in the tailings pond. This was determined by observing the pond water level on the graduated marker taped to the decant riser. An addit`~onal 6 inches was added to that level to account for the freeboard above the top of the riser. This is the same pond level that was measured in the previous inspection of 7-22-97. graduated marker reading = 11 inches added freeboard amount = 6 inches Total = 17 inches A 3 to 4 inch tear was observed in the liner on the uphill side of the tailings pond near the point where the incoming pvc line form the mill T's in with the sprinkler system. This needs to be repaired. See Problem PB-1. Tailings Pond Spray 8vaporation System The spray evaporative system was not operating during this inspection. This was listed as a violation of the permit in the 7-22-97 inspection and is set for a hearing at the September 24-25, 1997 Board meeting. No water was being pumped into the pond. The recirculating pump for the spray evaporative system has not been set into a sump area in the pond. As a result, the water level is just above the foot valve intake making it impos;aible to pump the pond level lower. The operator was supposed to have corrected this in then past and is required to pump the pond until it is dry. This will be discussed during the September Board hearing already scheduled. The foot valve intake of the recirculating pump sits in a 5 gallon bucket with holes drilled in the side. There is no lid on the bucket and it lies on its side. This is an inefficient screen and needs to be improved. The intake must be placed fully enclosed within a screen inside a coarser screen or filter. This has been noted in past inspections and will be discussed during the September Board hearing. The operator's representatives have mentioned in the past that there have been problems with the spray heads plugging up. This can be corrected by placing a shut-off valve at each head so it can be worked on without shutting off the entire system, improving the intake screen on th~a recirculating pump valve and placing an additional filter in the spray line between the recirculating pump and the spray heads. The system must be operating efficiently and as approved. If not, this will be discussed in the September Board hearing. Portions of the spray line along the east downhill side of the pond are not fully on the liner and, when in operation, may not be able to keep all spray inside the lined pond. This will :be discussed during the September Board hearing. HAZBL-A Adit The Hazel-A adit was inspected and the freeboard behind the coffer dam bulkhead was measured at 22." No inflow was observed through the shear zone in the adit roof between the bulkhead and tlae portal, however, the base of the bulkhead was leaking. The primary sump outby of the bulkhead was filled with water but was operating at the time of the inspection. The secondary sump was relatively dry. The leaking bulkhead needs to be repaired. See Problem PH-2. The l,sst entry in the log book in the adit was dated August 4, 1997 and initialed DZ. The operator is required to inspect the adit each day and keep a log. In a followup telephone conve:csation, the operator said that the Hazel `A' has been checked daily and that a complete