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Spring 5-47 was first discovered by SCC personal in 1989 end Yes monitored first in June, 1990. It is a developed spring ezisti ng nlongaide the mine entrance haul road just to the • west of the Seneca !I-Y Meteorological Station. It is not required by the hydrological monitoring program, monitoring is voluntary. In 1994, samples from this site displayed a RamgCa-S04 type water with an average TDS value of 1,522 mg/l. Spring S-i8, aka the FLander's Spring, was developed by SCC in the fell of 1992 per a land owner's agreement with Ralph Flanders. It is not required by the hydrological monitoring program, monitoring is voluntary. The first lab sample wee taken on June 27, 1994. It displayed a CaMg-504XC03 type water with a TDS of 804 mg/l. The hydrology monitoring program et the Seneca 1t-Y Mine requires a spoil spring survey every year after the spring snowpaek runoff. Mo spoil springs have been discovered. Comparison of Surface Pater guality to 4ater Use Standards. The CDON has estebliahed water quality standards for most atresm segments in the state, including the Tampa River and select tributaries (ODOR, 1991). Surf see water in the Sage Creek and Dry Creek Basins (Seneca 11-L) is categorized under Segment 12 of the Tampa River, end this segment has only minimal standards estebliahed (dissolved oxygen, p8, and fecal col iforms only). • Since Segment 12 has no standards estabLiahed for major ions or trace metals, standards established by the Office of Surface Mining Reelemet ion end Enforcement (OSMRE) for irrigation and livestock will be used to evel uate wster quality et the Seneca II-Y Mine. The OSMRE's listing of the most •tri ngent standards for irrigation wster recommended by s variety of organizations (EPA, Yyoming DEB, etc.-OSMRE, 1989) hss been compiled and presented in Table 14 (Appendix A). Of all the surface water sites downstream of Senses 11-V, only Sites SGS (Dry Creek) and FG4 (Sege Creek) have their waters used far irrigation. Also, water from Site FG1 (lower xubberson Gulch) hea the potential of being used for irrigation, although this has not been developed es such. Peter quality from these three sites were compered egeinet these atsndards, end the comparison reeulta are presented in Table 15 (Appendix A). The comparison shows sulfate vslues at all three sites and high total msngenese and pR values at Sites FG1 end SGS. Table 16 (Appendix A) presents the moat stringent livestock standards as compiled from various organizations by the OSMRE (OSMRE, 1989). Surf see water quellty dste measured at all stream and MPDES sites during 1994 were comps red with the standards list for livestock • 12