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_„_ replacing only 9 fen_t of s•rnd over th,• rer•l.,inn•,7 uren~ m.ty supgc:i th•~t au increase in recharge will occur. Oo,,•,s•cr, the ,,~i1 studir:; in A}q,!»rlix 1, r;i.plav field studies that show a 1.3 inch rni.nfall event only penetrated 26 inches into the sand, Based on the above prrd.ic•tions, the Division finds that the recharge rate will not be signif-icantly chanyec7 by the operation. Any potential increase in the recharge rate should not significantly affect the hydrologic balance provided the water quality predictions are sound. The ground water monitoring program is designed to identify any impacts to the hydrologic balance. Mani toting: Baseline water quality monitoring was first~cohducted in 1978 in preparation of the original Coors Kennesburg mine application. In October Of 1980, an extensive monitoring program was initiated to provide a more deCailed set of data in which future monitoring data could be compared. A year of baseline data has now been collected. The applicant proposes to monitor ground water using the present locations, frequency, and chemical parameters approved for the baseline data collection. After reviewing the applicants haseline data, ongoing monitoring data, and statement of probable hydrologic consequences ttre Division feels that the monitoring plan can be modified to better verify the applicants predictions and eliminate non-essential monitoring. Thc. Division will therefore stipulate the following monitoring program. WATER hfONITORZNG REQUIREFfENTS: Table 1 Table 2 Location LD. JJO. Rc!r ui remr_n is Rc•n ui rcmcn is Ennis Draw - Dlf-96 Monthly Quarterly DN-122 hfonthly Quarterly FPFI pion thly Quarterly Overburden D1l-133 Mon thl y Annuall y DR-172 Pfonthly .Semi-Annually Spoil Well Proposed We11 Pfont}f1y Semi-Annually Coal DH-137 Monthly tJ/R DJJ-61 hfohthly N/R FOXh111S Keenesburg No. 1 N/R N/R Kennesburg No. 2 N/R N/R Note: 1. N/R = Not Req vi red. 2. A11 results to be submitted quarterly.