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1.3 Monitoring Programs for 1986 <br /> 1.3.1 Surface Water <br /> Purgatoire River - Stations PRS-1, PRS-2 and PRS-3. <br /> During 1986, Stations PRS-1, PRS-2 and PRS-3 will be monitored monthly for flow, <br /> pH, conductivity and temperature. In addition, an annual sample collected in <br /> November will be analyzed for the water quality parameters listed in the attached <br /> letter. This data establishes a basis for assessing impacts of mining on the major <br /> receiving stream of the area. <br /> Mine Discharge - Stations MDNE-1 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 /> total combustible solids, sodium, bicarbonate and manganese will be analyzed <br /> quarterly and the parameters listed in Table 2 of the letter will be analyzed annually <br /> (November). This data will be used in the assessment of impacts on the major <br /> receiving stream of the area. <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 monthly for flow, pH, conductivity <br /> and temperature. In addition, quarterly and annual samples will be collected and <br /> analyzed for those parameters consistant with the mine discharge sampling. This <br /> data will be utilized in the assessment of impacts of mine activities in the canyon. <br /> Apache Canyon - Station ACF-1. <br /> Following assessment of baseline data collected from the flume and projections of <br /> impacts associated with the five year mine plan, MLR approved discontinuation of <br /> monitoring until further disturbance is proposed in this canyon. <br /> Santistevan Canyon - Station SCF-1. <br /> Following assessment of baseline data collected from the flume and projections of <br /> impacts associated with the five year mine plan, MLR approved discontinuation of <br /> monitoring until further disturbance is proposed in this canyon. <br /> -6- <br />