Laserfiche WebLink
CZ ACZ Inc. III I II I II I II IIII III <br />Engineering and Environmental Services <br />A 999 <br />1475 Pine Grove Road, Suite 109 <br />P.O. Box 774018 <br />Steamboat Springs, Colorado 80477 <br />303-879-6260 <br />May 6, 1993 <br />Ms. Pa[ Nelson <br />Colorado Department of Health <br />Water Quality Control Division <br />4300 Cherry Creek Drive South <br />Denver, Colorado 80222-1530 <br />R F.~i~~~C l7 <br />~flAY 101993 <br />Division of tvt~neia~~ t} Geology <br />Re: The Rockcastle Company -Grassy Creek Mine, CDPS Permit No. COG850023 <br />Dear Ms. Nelson: <br />The Grassy Creek Mine, operated by [he Rockcastle Company (Rockcastle), is located <br />approximately 25 miles southwest of Steamboat Springs, Colorado. tntng operations at the <br />site ceazed in the late 1980's and final reclamation of mtmng related disturbance was completed <br />in fall of 1992. Rockcastle has submitted an application and relevant supporting documentation <br />to the Colorado Division of Minerals and Geology (DOMG)_reguesting_fmal_bond releaze for <br />the Grassy Creek site. Recent conversations with DOMG Staff indicate that Rockcastle has <br />complied with all appliable regulatory provisions for final bond release and that final release <br />is anttctpated during May or early June. <br />The current CDPS Permit (Permit No. COG850023) addresses control and monitoring of <br />effluent discharge for the following discharge points: <br />001 -Pit 4 Sedimentation Pond Outlet <br />002 -Pit 3 Sedimentation Pond Outlet <br />003 -Pit 2 Sedimentation Pond Outlet <br />004 -Pit 1 Sedimentation Pond Outlet <br />005 -Pits 5/6 Sedimentation Pond Outlet <br />In conjunction with final site reclamation, the sedimentation ponds for the Pits 1, 2, and 3 areas <br />have been removed and azsociated disturbance areas reclaimed, so Discharge Points 002 003, and <br />004 no longer exist. In addition, the sedimentation ponds for the Pit 4 and 5/6 areas ~tave been <br />modified to meet USDA-SCS and Colorado Division of Water Resources requirements az stock <br />tanks or non-jurisdictional storage reservoirs. <br />Contributing drainage areas have been effettively reclaimed equivalency of premining and <br />postmining sediment contributions has been documen[ed, and DOMG is proceeding with the <br />necessary actions for final bond releaze. Rockastle is, therefore, seeking Water Quality Control <br />Division approval to discontinue monitoring and reporting attivities under Permit COG850023 <br />and retire the permit. <br />Please provide any necessary forms and/or instructions for termination of CDPS permit <br />responsibilities. Thank you for your assistance in this matter. <br />Sincerely, <br />ACZ Inc. <br />Jer G&(Iy>~tleton <br />JMN: c <br />cc: K. Gorham/DOMG <br />J. Chubrilo/Division of Water Resources <br />D. Mazsey/Parcel, Mauro, Hultin & Spaanstra, PC <br />