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~~~ ~ • • iii iiiiiiiiiiiiiiii <br />999 <br />Cripple Creek & Victor Gold Mining Company <br />SPILL REPORT RE~EtVE~ <br />JUL 1 ~ 1995 <br />Date of report: 7/13/95 cc: Jim Stevens ~eo~o9Y <br />Tom Sch~j,ei.~, of M~e~als & <br />FAXed to: 303-832-8106 (w/o map) Berhan I~e~~felew <br />Brief summary: On July 6, 1995 a maximum of 1000 gallons of weak neutralization <br />solution was released onto the ground by Pad 3 when a butt weld on a solution pipe <br />partially failed causing a portion of the solution to spray beyond the liner. <br />Date of spill: 7/6/95 <br />Time start: 1815 est. <br />Time stop: 1830 <br />Cause: partially failed 4" HDPE pipe butt weld. <br />Volume: < 1000 gal. est. <br />NaCN concentration: <0.025 Ibs/ton of water (<0.1 lbs. NaCN) <br />Emergency measures to neutralize and contain: <br />- Opened valves to relieve pressure to stop overspray. <br />- Bermed dirt road beside pad to contain spill. <br />- Treated with hypochlorite (15 ]bs. liquid and 5 Ibs. solid). <br />Additional corrective actions: <br />- Disconnected pipe with failed weld until the other welds could be checked and the <br />failed weld could be repaired. <br />- Sampled area that came in contact with the spill to determine if additional <br />remediation is necessary (sampled 7/10/95 by Scott Wanstedt and Jim Stevens). <br />- Analyze solid sample via Meteoric Water Mobility Test (per Posey) for CN WAD, <br />Zn, and Hg (per Keffelew) (results pending). <br />- Sample solution being applied to Pad 3 to characterize solution released (results <br />pending). <br />- Improve training of process personnel to ensure proper inspection of pipe welds. <br />The failed weld will be used to demonstrate what to look for during inspections, <br />