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6 <br /> survey. <br /> 3 . Present a proposal for monitoring well installations required to <br /> initiate ground water characterization including locations and <br /> procedures for well drilling, well installation, well development, <br /> water level monitoring, water quality sampling, and formation <br /> hydraulic conductivity determination. <br /> 4 . Present a proposal for laboratory analytical parameters and <br /> detection limits. objectives for the use of analytical chemical <br /> data from water samples are: <br /> 0 Assess background ground water quality; <br /> G Evaluate water quality of ground water discharges to surface at <br /> mine openings, springs, seeps, and gaining stream reaches; <br /> G Characterize the nature and extent of contamination in all <br /> aquifers and evaluate potential impacts to surface water or <br /> current or potential future uses of ground water. <br /> Chemical data collected must be sufficient to meet these objectives. <br /> Presentation of Hydrogeologic Information <br /> 1. Characterize the ground water flow conditions within all potentially <br /> affected aquifers based on the physical geologic and hydrogeologic <br /> data collected during field investigations. This characterization <br /> will provide the basis for understanding the movement of ground <br /> water within and between the aquifers. <br /> 2 . Define the lateral and vertical extent of all potentially affected <br /> aquifers and describe the nature of ground water movement in the <br /> aquifers. Describe aquifer recharge locations and mechanisms. <br /> 3 . Provide hydrogeologic cross-sections depicting potentially affected <br /> aquifers, showing monitoring well locations, geology, and water <br /> table elevations. <br /> 4. Using hydraulic conductivity and flow velocity values, evaluate <br /> hydraulic characteristics of aquifers and movement of potential <br /> contaminants within the aquifer. <br /> 5. Provide a water balance evaluation of surface streams within the <br /> potentially affected area to demonstrate whether ground water <br /> contributes significantly to surface water flow, i.e. , identify <br /> influent or gaining reaches. <br /> 6. Determine hydraulic conductivity for shallow alluvium in the <br /> vicinity of influent reaches. This, in combination with water level <br /> data for both surface and ground water, and with stream profile <br /> data, would allow an estimate of the volume of ground water <br />