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0 . <br />4.8.1.5 Operational Surface Water Qualltv <br />0- <br />Numerous samples have been collected at the surface water monitoring sites and a few analyses of the <br />water in the settling ponds have been conducted. Samples which were collected in 1977 or later are <br />included in the operational monitoring table. Table 2.7-18 gives the premine surface water quality. <br />Most of the drainages were not disturbed at the start of mining and therefore some of the results <br />presented in this section are baseline concentrations. Table 4.8-8 gives concentrations for total <br />suspended solids (TSS), total dissolved solids (TDS), conductivity, pH, total iron, total manganese and <br />oil and grease for the surface water sites. Table 4.8-11 in Section 4.8.5.1 lists the locations of the pre - <br />mining surface water sites. Only a few samples in 1977 were measured from sites SI, S2, S3 and S4 <br />because these are not in the active area. Numerous data are given for the Johnson, No Name, Coyote <br />and Buzzard Gulch sites. <br />4-205 a zos _.__ pi: + <br />