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Groundwater 1985 <br />Table 5 shows the results of groundwater sampling during 1993; as well as, a comparison to the <br />baseline yeaz of 1981. Results of quality sampling aze consistent with the results from previous yeazs <br />and identify a potential problem with the required monitoring locations. Ground water is being <br />sampled at SW-1 above the mines and GW-4 between McClane and Munger Canyons. GW-4 is in <br />close proximity to a hay field that is irrigated during dry periods., As suggested in previous reports, <br />the ground water at this location appeazs to be effected by the irrigation practices in the area. GVC is.: <br />in the process of converting to sampling GW-3 rather than G W-4. GW-3 is located adjacent to the _: <br />road south of GW-4 and should be outside of the influence of the irrigation of the hay field. Refer to <br />Figure 4.2-2 of the McCLuie Canyon Permit. GVC has been in contact with DMG to obtain approval ' <br />for this substitution. ~ ~ <br />PROBABLE HYDROLOGIC CONSEQUENCES <br />The mines will have negligible effect upon the hydrologic regime of East Salt Creek. The azea <br />disturbed is small, sedimentation and surface water systems have functioned well for over ten yeazs. <br />Most storm events that have exceeded the design criteria required by CMLR have not been a problem <br />for the system to handle. The effect that the mine has on the groundwater hydrology of East Salt <br />Creek has been decreased further since water is now being imported to the mine and no further <br />dewateriag will take place until water in 001 North Section backs up to the seals and is drained to the <br />water sump. This water will then be used in the mining process. <br />If there are questions or if I can be of further assistance please contact me. <br />Sincerely, <br />n <br />~~~~ <br />John M. Wahers <br />Manager of Mine Services <br /> <br />AHR - 95 Page - 4 1 - 26 - 96 <br />