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Fe~pF-Cp ~9Q . <br />rn ~-Q~0' O <br />+ +- <br />'~ 7g76 ` <br />R~chartl D. Lamm <br />Governor <br />DEPARTMENT OF NATURAL RESOURCES <br />Davin M. Getches. Enecutwe Director <br />MINED LAND RECLAMATION DIVISION <br />DAVID C. SHELTON, Dlraetor <br />February 27, 1986 <br />R~c~rv~u <br />MAR 7 1986 <br />{p1pWMAlS COwI CO. <br />Mr. Scott Jones <br />Snowmass Coal Company <br />P.O. Box 980 <br />Carbondale, Colorado 81623 <br />Re: Technical Revision for reduction of monitoring; File No. C-81-025 <br />Dear Mr. Jones: <br />After review of the previous year's monitoring results from the North Thompson <br />Creek Mines, the Division proposes the following monitoring schedule to be in <br />effect both during the present condition of temporary cessation and when the <br />mine begins production activity again. There are two exceptions to this <br />schedule as detailed below: <br />1. The requirement for monitoring of the Roaring Fork is deleted and does <br />not need to be monitored if production activity is started. <br />1 2. If sealing and/or flooding of either Mine No. 1 or 3 is instigated Wells <br />-i No. 1, 3 and 4 should be monitored on a monthly basis for levels and <br />Table 1B parameters. <br />The enclosed tables depict the Division's proposed monitoring plan. If <br />Snowmass agrees, please respond so in writing as soon as possible so the <br />approval letter can be issued. <br />Sincerely, <br />( Candace M. Thompson <br />Hydrologist <br />7 CMTJv,~r <br />7935E <br />7 <br />7 423 Centennial Building, 1313 Sherman Street Denver, Colorado 80203 Tel. (303) 866-3567 <br />-iii iiiiiiiiiiiuiii <br />999 <br />