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<br />5.0 MONITORING PROGRAPAS FOR 1985 <br />Surface and ground water sampling to be conducted during 1985 will be similar to <br />that of 1984. Because of increased activity both underground and on the surface, <br />monthly, quarterly and annual data will be gathered at the mines and adjacent areas. This <br />data will be used to further assess potential impacts of mine operations and effects on the <br />existing hydrologic balance. Proposed stations and parameters to be monitored are <br />included below. During 1985 WFC may find it necessary to further modify this program. <br />In this event, WFC will notify the Division in writing. <br />Results from the 1984 water year indicate many of the water quality parameters to <br />be near or below the detection limits. Those parameters which will be continued during <br />the 1985 program and those which will be discontinued are presented in Table 4. <br />5.1 Surface Water <br />Purgatoire River -Stations PRS-l, PRS-2 and PRS-3. <br />During 1985, Station PRS-2 will be dropped and Stations PRS-1 and PRS-3 will be <br />monitored monthly for flow, pH, conductivity and temperature. In addition, an <br />annual sample collected in November will be analyzed for the water quality <br />~~eG,~....0 a-, ~ parameters listed in Table 4. Staff gages will be established on bridges near the two <br />~o_~ <br />P stations and flow will be determined from a stake-discharge curve developed from <br />1954-1935 data. This data wilt establish any impact of mining on the major <br />receiving stream of the area. <br />Mine Discharge -Stations PADNE-I and MDGE-1. <br />These stations will continue to be monitored monthly for flow, pH, conductivity, <br />temperature, total suspended solids and iron. In addition, total dissolved solids, <br />,:, J ~ ~ total combustible solids, sodium, bicarbonate and manganese will be analyzed <br />~~ r .,. c.T ~`N <br />quarterly and the parameters listed in Table 4 analyzed annually (November). This <br />data will be used in.t/he assessment of impacts on ~e major receiving stream of the <br />area. ':(.,;~~-tee w ~~ a fx,~- <br />Ciruela Canyon -Stations CCS-1 and CCS-2. <br />Because of increased surface activities with mine operations and refuse disposal, <br />monitoring frequency at these stations will be increased from quarterly to monthly <br />-26- <br />