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EASTSIDE MINE <br />Summary of 1994 Water Monitoring <br />Extent of Mining <br />Limited mining was accomplished in 1994. The entries of the <br />Eastside Mine are advanced to a total of 1900 feet. Two entries <br />are being driven on the strike. <br />Flow and Field Parameters <br />The flow and field parameters of the Harvey Gap Outlet above and <br />below the mine continue to demonstrate the seasonal discharges from <br />the Harvey Gap Reservoir. No significant deviations from the 1985- <br />1993 data are noted. <br />Field conductivity readings for November and December at the Harvey <br />Gap Outlet-Below Mine appear to be low. The December lab <br />conductivity for the same sampling point is 859. The field <br />conductivity for the Harvey gap Outlet-Above Mine are 700 and 590 <br />for November and December respectively. From this data it has been <br />determined that the Harvey Gap Outlet-Below Mine conductivity data <br />for November and December is not accurate. <br />Chemical Parameters <br />The chemical parameter results of the Harvey Gap Outlet above the <br />mine and below the mine generally fall within the ranges <br />established 1985-1993. The conductivity, pH, alkalinity, dissolved <br />solids, SAR, cations, magnesium, sodium, bicarbonate, and sulfate <br />compare favorably with the established ranges for the nine years of <br />sampling. The values below the mine for 1994 are well within the <br />established levels for pH, conductivity, sodium and sulfate. There <br />appears to be seasonal variations; lower values during the warm <br />months and higher values during the cold months, The fluctuations <br />could be due to the rising water level of the reservoir after the <br />water level was drained to base level during the irrigation <br />seasons. <br />The 1994 mine water discharge results are quite similar to those <br />for 1987-1993. This would be expected due to the minimal <br />advancement of the entries. <br />Impacts on Surface and Ground Water <br />No discharge has occurred from sediment pond SP-1. <br />