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livestock waterrng. The discussion mentions that all am,; fors praor to mining at the Seneca II-W Mrne have exhibited several parameter concentrations in excess of both irrigation and livestock standards compared, renderrng them questionable regarding their sui tabrli ty for either irrigation or livestock. All bedrock aquifers affected by mining have been determined to have transmrssivities less than 100 ftz/day, which would also preclude their use for yieldrng sufficient water for irrigation, or even livestock. Surface Water At Seneca II-W, all stream antes (unle ea otherwise noted) are monitored monthly (excluding Hovembex to February) for flow and field pazameters. Samples obtained at these si tee are analyzed Eor the surface water parameter list, Table 7, during April, June, and September. Springs are moor toned semiaanually (once in April-June, then again in September-November) for flow, freld parameters, and, if flow exceeds Eive gpm, the surface rater pazameter list. A summary of surface watez monitoring sites and sampling hie toty is presented in Table 8. Monrtoring frequencres for surface water ai tes may be found on Page 15-3-2 of the Seneca II-W PAP. All surface aster data is found in Appendix E. Data for each site in Appendix E begins ai th a floe hydrograph of all his [orrc data (plus an annual hydrograph for HPDES ar [es), followed by a listing o£ individual rater quality and quantity data for the current water year. After the water quality report is a statistics report representing baseline (i.a., preminang) data for each site downstream of mining (when avai labia). On this atatia tics report, "censored data" refers to analytical values that ware baba the detection limit, which rare canaored from the min/max/mean calculations. The time frame fox baseline condi Crone is listed under "conditions specified" at the bottom of each page. This is followed by a TDS regression plot u9ing the LOWESS method (ace the Ground Water Quality section), and a listing of historic percent milliequivalent values for major ions and TDS values. The range of values on the TDS plots is set automatically by a computer program and cannot be user defined. The following discussion of rater quality will limit itself to a description of TDS trends. A separate section, Comparison of Surface Water Quality to Hater Use Standards, will list those samples that exceed rater use standards. Lab samples are handled in a matter identical to what ras discuaead earlier in the ground water section. For Che Bake of brevity, the prafi: that precedes nil aurEaee rater site names will often be dropped throughout this report. Ae an example, Site SW-S2W-SG7 (HSH7) as 11 ba referred to ae Site 7.