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water for local residents are not from aquifers impacted by mining. Mining at Seneca li • is not believed to be reusing the degradation of any monitored aquifer. Surface Yater Table 73 lists pertinent information on all NPDES, stream, and spring monitoring sites at the Seneca II Mine. A complete description of the surface water monitoring program may be found on Pages 7-161 to 7.169 of the Seneca 1I Permit Application Package. NPDES Discharge Points 002, 003, 004, and 008 are monitored weekly. Stream Monitoring Sites Sw-S2-1, 2, 5, and 6 are monitored monthly from Narch through October. AlL of [he NPDES and Stream Monitoring Sites 7, 2, 5, and b are sampled three times a year for water quality. The first sample of the year is collected prior to peek runoff (Mareh ); the second sample is collected after peak runoff (May or June); and the third sample is collected during base flow conditions (September). Samples collected at alt these sites were analyzed using the surface water long list, Table 14 (Appendix A). The two stream monitors on Fish Creek (Sites 11 and 13) and the two on Fish Creek tributaries (Sites 10 end 12), are monitored monthly from May through September. Nhen no flow is observed at the Cow Camp or Bond Creek sites (Sites 11 and 13 ), the two Fish Creek sites (Sites 10 and • t2) are not monitored. This year, monitoring occurred at these four sites in May only. At the Seneca li Mine, there are four springs (native) that are sampled annually (in the spring). Ten spoil springs are monitored in the spring season each year after the ground had dried from snowmelt. In addition, Spoils Spring M1 was monitored for the long list concurrently with Site SY-S2-b, and was monitored biweekly and concurrently with NPDES 004 for flow and field parameters from Narch to June. Surface water quality data are presented in Appendix E. Daia for each site begins with e flow hydrograph of ell historic data (plus an annual hydrograph for NPDES sites), followed by a statistical summary of water quality data for the current water year, and then a listing of individual water quality and quantity data for the current water year. Percent milliequivelent values (used to determine water quality type) are presented in Tables 15 through tli. Crest stage gage rating curves ere presented in Appendix F. NPDES discharge monitoring reports (DMRs) ere presented in Appendix G. Lab samples are handled identically to procedures discussed previously in the ground water section. For the sake of brevity, the SY-S2- prefix that precedes all surface water site names will often be . dropped throughout the following text. As an example, Site SY-52.5 will be referred to as site 5. 9