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(Page 2) <br />MINE ID # OR PROSPECTING ID # M-94-117 <br />INSPECTION DATE 5-10-97 INSPECTOR'S INITIALS ACS <br />The spray evaporation system in the tailing pond was inspected. There are 17 sprinkler heads <br />on a line located along the uphill side of the pond. These sprinklers can be charged either <br />by the line coming from the mill building, which is connected to the Hazel-A main pump, or <br />by the recirculating pump located in the tailing pond. There are 23 sprinkler heads on a <br />line located along the downhill margin of the pond. These sprinkler heads are oriented <br />horizontally to prevent spray from escaping the lined area, however, maximum evaporation will <br />not be achieved unless the spray heads are upright. These spray heads must be reconfigured <br />so that they are upright and spray is contained in the lined area. The 40 sprinkler heads <br />in the spray evaporation system is 40 fewer than the 80 spray heads required in the approved <br />plan. The spray evaporation lines must be extended, and the 40 additional sprinklers <br />installed (see PB-1 on the last page of this report). <br />The land application system was inspected and found to be properly installed and functioning <br />adequately. The land application system should only be used if freeboard in the pond or <br />Hazel-A become critical. The operator is reminded that the water sampling plan described in <br />the permit must be initiated if the land application system is utilized. <br />Several other observations were made in the vicinity of the tailing pond. The pond freeboard <br />was approximately 20" at the time of this inspection. There was exactly 12" of freeboard to <br />the elevation of the decant riser closest to the mill. The fence around the tailing pond is <br />damaged and open at a number of locations. The fence must be repaired to prevent wildlife <br />access and possible damage to the liner (see PB-2 on the last page of this report). There <br />were 3 rusted, leaky 55 gal. drums containing tailing located just above one of the <br />stormwater diversion ditches above the tailing pond. The tailing in these drums must be <br />placed into the tailing pond and the drums properly disposed of, or the drums of tailing must <br />be placed in the mill building (see PB-3 on the last page of this report). <br />Other site observations include: (1) The access panel at the low end of the mill building is <br />no longer water tight. A gasket must be installed around this panel making it completely <br />water tight (see PE-4 on the last page of this report). (2) Scraps of liner material have <br />blown down onto the hillside below the tailing pond. This area need to be cleaned-up (see <br />PE-5 on the last page of this report). (3) The toe area of the dam was inspected. No <br />seepage, bulging, or other problems were noted. (4) Ground water monitoring wells # 1, 2, <br />and 3 no longer have locks on the well caps. New locks must be installed (see PB-6 on the <br />last page of this report). <br />The Hazel-A adit was inspected. The Hazel-A inspection log book has been maintained. The <br />main Hazel-A pump and the two sump pumps were checked and found to be functioning. There <br />were two substantial leaks in the Hazel-A bulkhead, but they were both near the top of the <br />bulkhead, so were not critical. However, all leaks in the bulkhead must be repaired on a <br />timely basis, particularly if the leaks are in the lower two-thirds of the bulkhead. At the <br />time of this inspection there was only 1.5" of freeboard at the bulkhead. This slight <br />freeboard is not acceptable. The water behind the bulkhead should be kept as low as possible <br />at all times, but at no time should the freeboard amount be less than 12 inches. Any <br />freeboard at the Hazel-A bulkhead of less than 12 inches at any future inspection will be <br />considered a possible violation to the Gold Hill Mill permit. The Hazel-A pump was running, <br />and was going to run through the night of May 10 into May 11, 1997. This should alleviate <br />the lack of freeboard at the bulkhead. <br />Until further notice, the Division will require that the site be monitored on a daily basis, <br />including weekends, and that the spray evaporation system be operated a minimum of 8 hours <br />each day, preferably from 9 a.m. to 5 p.m. when maximum evaporation can be achieved. <br />