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IIIIIIIIIIIIIIIIIII o5rn ~TpN <br /> STATE OF COLORADO <br />DIVISION OF MINERALS AND GEOLOGY <br />Depanment of Natural Resources <br />1313 Sherman St., Room 215 <br /> <br />Denver, Colorado 8020] I~~~ <br />Phone: 130]1 666~J567 <br />FA%. 1303) 812-8106 <br /> DEPARTMEf~IT OF <br /> NATURAL <br />May 8, 1995 RESOURCES <br /> Rny Nomr~ <br /> <br />Mr. Thomas E. Ehmett, Acting Director Guvrmi~~ <br /> <br />Albuquerque Field Office ~,,~,,,, s ,,,, h~.r,~,~ <br />r.rr nnvr o~aYUn <br />Office of Surface Mining ~~~~'~~~'~~ ~~~~~~ <br />505 Marquette Avenue, NW, Suite 1200 ~,,~,,,,,,,Il,.rr~,,, <br />Albuquerque, NM 87102 <br />RE: TDN X-95-020-179-002 <br />Seneca II-West Mine (C-82-057) <br />Dear Mr. Ehmett: <br />The Division of Minerals and Geology ("the Division") received the above referenced ten <br />day notice from the Office of Surface Mining (OSM) on April 28, ]995. The TDN cited <br />three alleged violations of the Colorado regulations. After a review of facts related to the <br />three alleged violations, the Division has determined that no violations of the Colorado <br />regulations exist at this time. Following is the Division's demonstration of good cause for <br />not issuing enforcement actions for the alleged violations in the TDN. Copies of documents <br />referred to are enclosed to help with your review of this response. <br />Issue 1: <br />The TDN cites an alleged violation of Rules 4.03.1(4) and 4.05.9(2) for failure to design and <br />certify an impoundment at the outlet of a haul road ditch. A sump had been constructed <br />at the ditch outlet to minimize the amount of sediment leaving the haul road corridor- <br />Following receipt of the TDN, the Division conducted afollow-up inspection of the Seneca <br />II-W mine on May 5, 1995. The embankment of the sump at the ditch outlet was breached <br />to prevent water from being impounded. A series of silt fences and hay bales were installed <br />downhill from the sump to treat runoff from the road ditch prior to its leaving the permit <br />area. The sump cited in the TDN no longer impounds water. Since there is no <br />impoundment at the ditch outlet, no violation exists at this time. Therefore, enforcement <br />action would not be appropriate. <br />