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• concentrations higher than the secondary drinking water standard for <br />this parameter. However, bottled water is consumed at Seneca II. <br />Ground Water Quality Summary. TDS values at ten 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. CDOH 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 from 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, 004 and 008 <br />are monitored monthly for field parameters. All four NPDES sites are <br />monitored monthly for NPDES parameters. Stream Monitoring Site SSG2 is <br />monitored for field parameters monthly from March through October. This <br />site, as well as Sites SSG1, SSG3 and SSLG5, are sampled three times a <br />year for full-suite water quality. The first sample of the year is <br />collected during the spring runoff (March or April), the second sample <br />is collected after the spring runoff (May or June), and the third sample <br />is collected during base flow conditions (September). Full-suite lab <br />samples collected at all these sites were analyzed using the surface <br />water long list, Table 8. The two stream sites on Fish Creek (Sites <br />SSF11 and 13), and the two on Fish Creek tributaries (Sites SSC10 and <br />• SSB12), are monitored monthly from May through July for field parameters <br />and full-suite lab samples. When no flow is observed at both the Cow <br />11 <br />