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iii iiuiiiiiiiu iii <br />March 24, 1993 <br />TO: File <br />FM: Shawn Smith <br />Re: 1992 Reenesburq Annual Hydrology Report Review <br />Reenesburq Mine (C-B1-028) <br />Dear File: <br />I have completed the review for the annual hydrology report 1992 <br />from the Keenesburg Mine. The following documents were utilized in <br />the review: <br />Findings 3/92 <br />Permit sections on ground and surface water <br />Probable Hydrologic Consequences <br />1990 Annual Hydrology Report <br />1991 Annual Hydrology Report <br />Below are mentioned my comments. <br />1. The operator has complied with Rule 4.05.13 and Stipulation <br />No.s 5, 17, 24 and 25. Stipulation 5 requires the submittal <br />of an annual hydrology report. <br />a. All well parameters have been analyzed and quarterly <br />monitored as per the permit commitment. Wells FPW, DH96, <br />DH122, AMW-1 and 2 and SMW 2 have been monitored on <br />a quarterly basis. <br />b. Water use at the mine has also been included as required <br />in the AHR. <br />c. The bailing procedure is at this time undergoing an <br />experimental trial-and-error process in which two methods <br />are being contrasted. Method A has been the method used <br />in the past at the mine and uses the fifth, sixth and <br />seventh bailer content of water to test the sample <br />parameters. Method B is complete purging of the well <br />before the sampling takes place. Trends noted using <br />Method B are a more sensitivity to alkalinity, TDS, <br />sulfate, sodium and calcium levels. Both methods will be <br />continued through 1993 to increase the data base before <br />determination on the method to be permanently used. <br />d. Well AMW-2 is believed to be pluaaed off and will underoo <br />that this well is completed in the wrono monitoring zone. <br />If this is the case, this situation will be rectified. <br />