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Ground Water Quality Summary. TDS values at eight out of the nineteen <br />wells sampled the year displayed increasing TDS trends. TDS trends at <br />all other wells were either stable or decreasing. CDDH agricultural <br />ground water standards for pH, fluoride, iron, and manganese were <br />exceeded at certain monitoring wells. .In the area surrounding Seneca <br />II, ground water is not being pumped for irrigation or livestock <br />watering purposes, nor has the CDOH classified any aquifer in this <br />region for any use. The above discussion is provided only to serve as a <br />comparative basis to judge ground water quality. Domestic wells that <br />provide drinking water for local residents are not €rom aquifers <br />impacted by mining. <br />Surface Water <br />Table 7 lists pertinent information on all NPDES, stream, and spring <br />monitoring sites at the Seneca II Mine.:.A. complete description of the <br />surface water monitoring program may be found on Pages 7-336 to 7-355 of <br />the Seneca II PAP, and is summarized on pages 7-349/350. NPDES <br />Discharge Point 003 is monitored weekly for field parameters (flow, <br />temperature, pH, and electrical conductivity). Points 002, 009 and 008 <br />are monitored monthly for field parameters. All four NPDES sites are <br />monitored monthly for NPDES parameters. Stream Monitoring Sites SSG1 <br />and SSG2 are monitored for field parameters monthly from March through <br />October. Both of these sites, as well as Sites SSG3 and SSLGS, are <br />sampled three times a year for full-suite water quality. The first <br />sample of the year is collected during the spring runoff (March or <br />April), the second sample is collected after the spring runoff (May or <br />June), and the third sample is collected during base flow conditions <br />(September). Full-suite lab samples collected at all these sites were <br />analyzed using the surface water long list, Table 8. The two stream <br />sites on Fish Creek (Sites SSF11 and 13), and the two on Fish Creek <br />tributaries (Sites SSC10 and SSB12), are monitored monthly from May <br />through September for field parameters and full-suite lab samples. When <br />. no flow is observed at both the Cow Camp or Bond Creek sites (Sites 10 <br />and 12), the two Fish Creek sites (Sites it and 13) are not monitored. <br />I1 <br />