Laserfiche WebLink
iii iiiiiiiiiiiiiiii <br />999 <br />STATE OF COLORADO <br />DIVISION OF MINERALS AND GEOLOGY <br />Department of Natural Resources <br />1311 Sherman SI., Room 215 <br />Denver, CO 80203 <br />Phone: 13031 866-3567 <br />FA%: (303) 832-8106 <br />October 15, 1993 <br />David L Beverlin <br />Edna Strip Mine <br />The Pittsburg & Midway Coal Mining Company <br />P.O. Box 176 <br />Oak Creek, Colorado 80467 <br />Mr. Brian D. Gontarek <br />The Pittsburg & Midway Coal Mining Company <br />6400 South Fiddler's Green Circle <br />Englewood, Colorado 80111-4991 <br />RE: Edna Strip Mine (C-80-001) <br />Technical Revision 20 <br />Dear Mr. Beverlin: <br />OF'~~/O <br />Nom: <br />~~~ <br />~ !8]b ~ <br />Roy Romer <br />Governor <br />M¢hael B. Long <br />Drvivan Direcmr <br />We have reviewed P&M's responses to concerns outlined in our January 4, 1993 letter <br />pertaining to the above mentioned technical revision. Following are our comments on those <br />responses. The order of our comments follows the format of our January letter. <br />DMG Item la: <br />P&M has adequately addressed this concern. <br />DMG Item 16: <br />The text still does not give TDS annual averages for the wells specified. In addition, the graphs <br />shown in Figures 1 and la show the annual average TDS concentration at WR-1 to be closer <br />to 3500 mg/L than 3030 mg/L as predicted. <br />DMG Item lc: <br />This concern has not been addressed. It is still not clear how the terms during 1981-1991 and <br />over 1981-1991 differ. Please provide the predictions requested. <br />