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REP12483
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REP12483
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Entry Properties
Last modified
8/24/2016 11:43:12 PM
Creation date
11/27/2007 12:54:51 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1981028
IBM Index Class Name
Report
Doc Date
2/22/1995
Doc Name
1994 AHR & ARR review memo
From
DMG
To
TONY WALDRON
Annual Report Year
1994
Permit Index Doc Type
HYDROLOGY REPORT
Media Type
D
Archive
No
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STATE OF COLORADO <br />DIVISION OF MINERALS AND GEOLOGY <br />Depanmenl of Natural Resources <br />1313 Sherman 51.. Room 215 <br />Denver, Colorado 80203 <br />Phone. (3031 865-3567 <br />FAX: 13031 832-8105 <br />Date: February 22, 1995 <br />To: Tony Waldron ~ ~-: <br />From: Kent Gorham / ~jl'i~ <br />CC: David Berry <br />~~ <br />~~~~~ <br />DEPARTMENT OF <br />NATURAL <br />RESOURCES <br />Roy Romer <br />Governor <br />lames 5. L«hhead <br />Executive Doector <br />Michael B. Long <br />Division Direuor <br />RE: 1994 Annual Hydrology Report, Keenesburg Mine, Coors Energy <br />Co., #C-81-028 <br />As per your request, I reviewed the 1994 Annual Hydrology Report <br />(AHR) for the Keenesburg Mine. <br />General Comments <br />Overall, the report is well formatted and information is presented <br />clearly using charts and text. A map prepared according to the <br />standards of Rule 2.10 and showing the location of each monitoring <br />well should be submitted each year with the report. <br />I could not locate the hydrologic monitoring plan in the permit <br />text or appendices. I can only assume at this point that the <br />operator has accurately represented the monitoring plan <br />requirements in the AHR. <br />Monitoring Frequency <br />The operator met the required monitoring frequency for 1994. <br />Water Ouality and ouantity <br />There are 24 wells in the area, none closer than 2000 feet to the <br />permit area. Seven of these wells are located and completed in the <br />alluvium and colluvium of Ennis Draw and the rest are completed in <br />the Larimie-Fox Hills formation. The mine predicts an <br />immeasureable impact to quantity and quality of the water resources <br />in the area. <br />There are no apparent impacts in either quality or quantity of the <br />groundwater in Ennis Draw. Well DH96 downstream of the mine shows <br />a level very similar to the baseline level. No significant change <br />in dissolved solids is apparent. <br />
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