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COLOWYO COAL COMPANY L. P. <br />5731 Slate Highway 13 <br />Meeker, Colorado 81641 <br />(970) 824-1531 <br />(970) 824-1598 FAX <br />WOLFK@KENNECOTT.COM <br />Kimberley A. Wolf <br />Environmental Engineer <br />September 16, 1998 <br />Ms. Carla Lenkey <br />Colorado Department of Public Health and Environment <br />Water Quality Control Division <br />4300 Cherry Creek Drive South <br />Denver. CO. 80222-1530 <br />//~ Kennecott <br />~ . Ene~9r~Y _. . <br />COI0~0 COOLC01RpQ1p~ 1i.i. (~~; <br />RECEIVED <br />S E P 1 7 1998 <br />DIV. OF MINERAl.3 <br />8 GEOLOGY <br />RE: COLOWYO COAL COMPANY L.P. (COLOWYO); PERMIT NO. COG850017 <br />SECOND QUARTER 1998 DMR REVISION <br />Dear Ms. Lenkey, <br />In response to your request of September 1, 1998 and subsequent conversations, Colowyo is <br />submitting a revised second quarter 1998 Discharge Monitoring Report. At your direction, <br />EPA will not be copied on the revised report. <br />It is my understanding that the "30 day average" concentration, as requested on the DMR <br />form, is actually the highest 30 day average concentration during the quater. Additionally, the <br />°frequency of analysis" should reflect the actual number of measurements obtained for the <br />parameter. <br />Please contact me at (970) 824-1531 if you have any concerns or questions. Thank you for <br />your time with this matter. <br />Respectfully, <br />Kimberley Ate. Wolf (~ <br />Attachments <br />cc: MH GIBBON w/o attachments <br />