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IN REPLY REFFJI lD: <br />OFFICE OF SURFACE MINING <br />Reclamation and Enforcement <br />1999 Broadway, Suite 3320 <br />Denver, Colorado 80202-5733 <br />iii iiiiiiiiiiiii iii <br />999 <br />~£34]fl•~~]~~] <br />August 17, 1999 <br />United States Department of the Interior <br />Ms. Sandy Brown <br />Colorado DMG <br />1313 Sherman Street <br />Denver Colorado 80203 <br /> <br />CO-0102 <br />RECEIVED <br />AUG 2 61999 <br />Division of Minerals & Geology <br />I have reviewed the submittal of August 3, 1999 from Seneca II W Mine regarding the water <br />depletion estimate (Appendix 16-2). During our recent telecom you informed me that the <br />depletion estimate was an accurate representation of the facts except that the estimate did not <br />include a water depletion for domestic use. I noted, and you verified, that the depletion estimate <br />did not specifically state that certain water usages typically associated with an open-pit coal <br />mining operation were not present at the mine. For purposes of clarity, OSM requests that DMG <br />request the permittee to: l) affvmatively state in the water depletion estimate text that water <br />depletions due to pit water evaporation, conveyor sprays, bath house consumption, and coal <br />processing are not present at this particular mine; and 2) retitle Appendix 16-2 as "Average <br />Annual Water Depletion Es[ima[e." In addition, please advise the operator to include in the <br />depletion estimate a value for domestic water use. <br />Attached is an updated copy of the informal guidance OSM has prepared for permittee's to use in <br />calculating their water depletion estimates. <br />We can begin consultation with USFWS for purposes of the mining plan decision related to PR2 <br />as soon as we receive the above information. <br />Sincerely, <br />~~ - Ix C^/ <br />Larry Kline <br />Federal Lands State Coordinator <br />