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between 93.5 and 113.5 feet bgs. Overall, the ground water in Vindicator Valley at VIN - <br />2A is characterized by calcium- sulfate dominated water with near neutral pH (median <br />value 7.16), nitrate values below the detection limit since mid -2004, and a median sulfate <br />value of 701.5 mg/L. <br />Arequa Gulch <br />There are three existing monitoring wells in the Arequa Gulch watershed: ESPMW -1 and <br />CRMW -3B are completed in the bedrock granite and CRMW -3A is completed in the <br />alluvium/ shallow bedrock. The CRMW wells are both calcium sulfate waters. The <br />median pH, nitrate and sulfate values for CRMW -3A and CRMW -3B are 6.24 and 6.72, <br />10.6 and 2.7 mg/L -N, and 742 and 734 mg/L, respectively. ESPMW -1 is a calcium <br />bicarbonate water. The median pH, nitrate, and sulfate values are 7.84, <0.05 mg/L -N, <br />and 41 mg/L, respectively. <br />Poverty Gulch <br />There is one ground water monitoring well in Poverty Gulch, PGMW -2A, completed <br />within the diatreme. This well has been dry since installation in 2005 suggesting that <br />bedrock ground water is captured by the diatreme at this location. <br />Cripple Creek <br />There are no ground water monitoring wells in Cripple Creek. There are monitoring <br />wells located in tributaries to Cripple Creek including Squaw Gulch, Poverty Gulch and <br />Arequa Gulch. <br />Gold Run <br />Three wells were used to summarize the water quality in the Gold Run watershed: all <br />three wells (GRMW -1A, GRMW -2A, and GRMW -3A are completed in the granite <br />adjacent to the diatreme. All wells were installed in mid -1998. Water levels vary by less <br />than 10 feet. Overall, the ground water in Gold Run is characterized by calcium - sulfate <br />solutions in GRMW -1A and GRMW -2A and calcium - bicarbonate in GRMW -3A. The <br />well have near neutral median pH values (median value range of 6.84 — 7.41), low <br />nitrates (56 of 63 analyses less than the detection limit of 0.05 mg/L -N) and median <br />sulfate values of 691 mg /L, 1,726 mg /L and 184 mg /L in GRMW -1A, GRMW -2A, and <br />GRMW -3A, respectively. <br />Cripple Creek & Victor Gold Mining Company <br />Cresson Project Mine Life Extension 2 <br />4 -15 <br />