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s <br />r, <br />STATE OF COLORADO RIC HAgD D. IAMM, Govemm <br />MINED LAND RECLAMATION <br />DEPARTMENT OF NATURAL RESOURCES III IIIIIIIIIIiII III <br />D. Monte Pascoe, Executive Director <br />999 <br />423 Centennial Building, 1313 Sherman Street <br />Denver, Colorado 80203 Tel. (30$) 866-3567 <br />David C. Shelton <br />October 18, 1982 Director <br />TO: Dan Mathews /J /~ <br />FROM: Roy L. Cox ~/'~ ('f~ ~J/^~'/n`/ <br />RE: Ground Water Monitoring Stipulations for Grand Mesa Coal - <br />Red Canyon Mine, File No. C-034-81 <br />The following stipulations should replace or amend those ground water <br />monitoring stipulations put forth in Dave Craig's memo of October 8, 1982. <br />The changes are necessary to improve consistency with monitoring requirements <br />imposed on other underground coal mines in the state. <br />Stipulations: <br />1. THE OPERATOR WILL SAAfPLE WATER FR019 WELL A-10 MONTHLY FOR A "FIELD" <br />PARAMETER ANALYSIS AND QUARTERLY FOR A "FULL SUITE" ANALYSIS. <br />BOTH THE TERMS "FIELD" AND "FULL SUITE" ARE AS IS DEFINED ON PAGE <br />73 OF THE APPLICATION ADDENDUM (KIMBALL, ET. AL., 1982). WELL A-2 MAY <br />BE DELETED FROM THE SAMPLING REQUIREMENTS, IF DESIRED. IN ADDITION, <br />THE OPERATOR MAY DELETE THE FOLLOWING PARAMETERS FROM THE "FULL <br />SUITE" PARAMETER LIST FOR GROUND WATER ANALYSIS: <br />TOTAL COMBUSTIBLE SOLIDS <br />TOTAL HARDNESS <br />CARBONATE <br />CHLORIDE <br />Add: ALL GROUND WATER QUALITY AND QUANTITY DATA SHALL BE SUBMITTED <br />QUARTERLY. <br />2. ANNUALLY, THE OPERATOR WILL SUBMIT A REVISED P~12NE INFLOW l4AP SIMILAR <br />TO MAP 6 OF THE APPLICATION ADDENDUM (KIMBALL, ET. AL., 1982). PRB <br />R65FI3P5-BF-e433-PH&-B'PIf6R-6Rbl~IN>A-WJ}PSR-HBN~P9R~tY6-W ~i:Ii-A~iSA-BB-SHB- <br />H~PPSR-ANMiAB~i~r (L~lete) <br />