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._ :: <br />iii iiiiuiiiiiii iii <br />STATE OF COLORADO <br />DIVISION OF MINERALS AND GEOLOGY <br />Depanmenr of Natural Resources <br />1313 Sherman Sr., Roam 215 <br />Denver, Colorado 80203 <br />Phone (3031 866-3567 <br />FA%: 1303) 832-8106 <br />Memo <br />Re: Submittal of Annua! Water Level Measurement by October 31 of Each Year, <br />Stipulation #32, Canadian Strip, NOV C-94-025, Permit No. C-81-026 <br />To: David Berry <br />From: Randy Price <br />Date: October 26, 1994 <br />~~ <br />~~~~~ <br />DEPARTMENT OF <br />NATURAL <br />RESOURCES <br />Roy Romer <br />Governor <br />dames 5. Lochhead <br />Executive DireUOr <br />M¢hael8 Long <br />Dwivon Director <br />I have reviewed the hydrology monitoring plan for the Canadian strip mine and I believe that <br />stipulation #32 is no longer necessary. Stipulation #32 was applied to the 1987 permit renewal and <br />requires the mine to submit an annual water level measurement for water monitoring well #7 by <br />October 31 of each year. <br />STIPULATION NO. 32 <br />THE HYDROLOGIC MONITORING PLAN WILL CONSIST OF MONITORING THE <br />SPOILS WELL ANNUALLY FOR WATER LEVEL AND TO SUBMIT THE RESULTS <br />TO THE DIVISION BY OCTOBER 31 OF EACH YEAR. <br />Slurco Corporation, the operator of the Canadian strip mine, has been taking annual water level <br />measurements, but in the past two years has submitted this data after October 31. This data had been <br />submitted with the annual hydrologic report. This constitutes the water monitoring program for the <br />mine. <br />The original purpose of the stipulation was to get water level data to the Division as soon as <br />possible. This was necessary so that the hydrologist could make an early evaluation of the recovering <br />spoils aquifer. The data that has been collected for the past 8 years show that water level <br />measurements have stabilized and are now at equilibrium with annual precipitation (see chart below <br />from the DM&G annual hydrologic report review). <br />