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.. .:. ~ ( Page 3 ) <br />MINE ID # OR PROSPECTING ID # M-77-493 <br />INSPECTION DATE 7/2/98 INSPECTOR'S INITIALS ACS <br />that all 4-Dam seepage is being collected and routed to the ponds. 4-Dam seepage that would <br />not f~dw.,into the ponds by gravity is captured in, pipes and routed to the upper collection <br />pond. -. s,_:- , - <br />.,7Fy .k{. %. <br />The 1-Dam toe seepage was inspected. The opera. ~' has constructed a coffer dam to isolate the <br />toe seepage from the greater part of Robinson Lake. This coffer dam is interior to the <br />Robinson Dam environmental protection facility, and as such is not itself an environmental <br />protection facility under the Hard Rock/Metal Mining Rules. 1-Dam toe seepage collected behind <br />the coffer dam spills into a concrete drop box and is routed through an HDPE pipe to Warren's <br />Pump Station. The coffer dam is lined with a geocomposite liner which is tied into underlying <br />clay strata. The construction of the coffer dam and resultant toe seepage collection pond <br />(Tim's Pond) will provide information of the potential to isolate Pobinson Lake from 1-Dam <br />seepage in order to ultimately reclaim Robinson Lake to the aproved use of developed water <br />recourse, and may also provide useful information on the chemical compatibility of the <br />bentonite in the geocomposite liner with the 1-Dam seep water. <br />The 3-Dam face reclamation project completed in 1997 was inspected. The dam face was graded <br />to an overall slope of less than 3:1 and capped with natural fill. The area was then drill <br />seeded and mulched with weed-free straw. The mulch was held in place by hydraulically applied <br />tackif ier. Avery high density of seed germination was observed indicating good early stage <br />success for 3-Dam revegetation. It was observed that the upper portions of the reclaimed dam <br />face are going to be subject to problems with covering by wind carried tailings from Ten Mile <br />Pond. Climax is considering a number of options for better dust control in addition to the <br />Coherex applications currently in use. These options may include watering and new generation <br />palliatives. <br />I & E Contact Address cc: Carl Mount, DMG <br /> ^ CE <br />NAME Bryce Romia ^ BL <br />OPERATOR Climax Molybdenum Comoanv ^ FS <br />STREET Climax Mine ^ HW <br />CITY/STATE/ZIP Climax CO ^ HMWMD (CH) <br /> ^ SE <br /> ^ WQCD (CH) <br /> ^ OTHER <br />