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COLOWYO COAL COMPANY L.P. <br />;5731 Stage Highway 13 <br />F.teeker, Colorado 81641 <br />(970) 824-1531 <br />(970) 824-1598 FAX <br />WOLFK@KENNECOIT.COM <br />Kimberley A. Wolf <br />Environmental Engineer <br />February 9, 1998 <br />Mr. Jon C. Kubic <br />Colorado Department of Public Health and Environment <br />WQCD-PE-B2 <br />4300 Cherry Creek Drive South <br />Denver, CO 80222-1530 <br />Mr. Daniel I. Hemandez <br />Colorado Division of Minerals and Geology <br />1313 Sherman Street, Room 215 <br />Denver, CO 80203 <br />/~ Kennecott <br />CO(osvyo Coal Co~auy L.~. <br />VIA FEDERAL EXPRESS <br />RE: COLOWYO COAL COMPANY L.P., WATER QUALITY CONTROL DIVISION <br />PERMIT NO.: CO-0045161; RESPONSE TO LETTER FROM COLORADO DMSION <br />OF MINERALS AND GEOLOGY TO THE WATER QUALITY CONTROL DIVISION <br />(DATED 1/12/98) <br />Dear Messrs. Kubic and Hemandez, <br />Colowyo Coal Company L.P. (Colowyo) would like to take this opportunity to respond to the above <br />referenced letter which has raised concems regarding the agencies understanding of the Colowyo operation <br />and permit compliance. <br />It is worth noting that Colowyo was given the first opportunity to review and comment on the Water Quality <br />Control Division's (WQCD) draft Permit No. CO-0045161 for Colowyo, at the time that it was issued for <br />Public Comment, August 1 I, 1997. Representatives of Colowyo met with members of the WQCD on <br />September 2, 1997 to review the draft permit. Colowyo requested a 30-day extension to the Comment Period <br />until October 8, 1997. Colowyo submitted comments to the WQCD in a letter dated September 30, 1997 <br />to Mr. Jon Kubic. Please note that we are uncertain as to the status of CDMG's comments as the Public <br />Comment period for Permit No. CO-0045161 closed on October 8, 1997. <br />This letter will first attempt to clarify the repeated concems the CDMG raises with the WQCD regarding the <br />classification, design, and operation of Colowyo' s sediment control ponds. It is apparent the CDMG has <br />a fundamental misunderstanding of the past, previously approved, and current design and operation of <br />Colowyo' s sediment control ponds. <br />Secondly, Colowyo will address each point raised by the CDMG. In doing so, we hope to clarify the past <br />water management practices and future anticipated water management practices at Colowyo. <br />