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k <br />1 <br /> 999 <br />STATE OF COLORADO <br />DIVISION OF MINERALS AND GEOLOGY <br />Depanmenl of Natural Resources <br />1313 Sherman SI., Room 215 <br />Denver, Coluradu 80203 D I v 15 1 0 N O F <br />Phone: (303) g6b-3567 MINERAL S <br />FA\:13031 812-8106 & <br /> GEOLOGY <br />May I I, 1999 MENINGMSAFETY <br />Mc John C. Weinman B~u Owens <br />Montgomery Watson c°°e'°°` <br /> <br />P.G. $Ox 77401$ <br />Steamboat Springs, CO 80477 Greg E. Walther <br />E>,ecmme Duecmr <br />Lbchael B. Long <br /> Drv,aion Dueaor <br />Re: 1997 and 1998 Annual Hydrology Reports and Annual Reclamation Reports <br />for Hayden Gulch Loadout, Permit C-92-081, <br />submitted by Montgomery Watson <br />Dear Mr. Weinman: <br />The Division has completed its review of the above-referenced reports. The reports were well-prepared and <br />thorough, and they fulfilled for 1997 and 1998 the requirements for annual reclamation reports and annual <br />hydrology reports (AHR). <br />The Division (CDMG) has the comments, below, and the comments shown on the attached review <br />checklist. No responses are necessary from the permit[ee. <br />CDMG's letter of 11!7/97 (1996 AHR review) <br />HGTI's response to CDMG's comment 1 -Section 6.1 of your 1997 AHR explains that HGTI is <br />considering relocating the upstream monitoring location from HGDS 1 to a site nearer the Loadout for the <br />purpose of minimizing impacts from non-HGTI sources. CDMG believes such a move is desirable and <br />moving sooner rather than later also is desirable in order to establish an historical record at the new site. <br />Errors in CDMG's references to HGDSI -You correctly pointed out in Section 6.2 of your 1997 annual <br />report that CDMG misstated the flow at HGSD I on 4/23/96. CDMG also misstated the date when certain <br />parameters generally exceeded historical means at that upstream site. The correct date was I I /4/96, rather <br />than 4/23/96, and CDMG should have made no statement relating the flow on 4/23/96 to the high <br />parameter levels on l l/4/96. We apologize for the error. <br />Please do not hesitate to call me if you have any questions. <br />Sincerely, <br />i ~-r~l K.~l~~- <br />Tom Kaldenbach <br />Environmental Protection Specialist <br />cc: Dan Hernandez. CDbIG <br />