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and 007 will be the highest predicted base flow as was predicted <br />for July (0.2 cfs). However, during these months, -impacts to Fish <br />Creek due to mine spoils discharge to Cow Camp and Bond Creeks will <br />be considered to be minimal. Impacts during these months will be <br />governed solely by alluvial ground ~.vater flow in Cew Camp and Bond <br />Creeks. <br />(4) The flow and TDS concentration of Grassy Creek and Fish Creek <br />upstream of any impact of Seneca II mining used in the impact <br />analysis will be based on average values determined from <br />period-of-record data. <br />In summary, the above four assumptions have been incorporated into <br />the PHC analysis provided in Section VII B. <br />Grassy Creek Impacts <br />CGMMENT: <br />a. The term PG03 was omitteo from the equation on Paoe 7-188. <br />RESPONSE: <br />The equaticn ~•vhich was used on Paye 7-188 tvas in errcr and has since <br />been deleted r'rcm the discussion of Grassy Creek impacts as a result of <br />the assumptions and approach to the PHC analysis which ore re agreed upon <br />between PCC and MLRC during their September 3C, 1986 meeiing. <br />COMMENT: <br />b. The Division requested a discussion of spoils spring influence in <br />the PHC revision. .;o spoils spring loading based on TDS <br />concentrations of spoil effluent t•rere directl}• used in the <br />analysis. <br />RESPONSE: <br />Spoils spring data collected in the Little Grassy and Cow Camp Creek <br />drainages are presented in Sections VII B.l.a and VII B.l.b.ii of the <br />PHC analysis. The data are used to evaluate the flow and quality of <br />mine spoils discharge and are used directly in the PHC analysis where <br />applicable. <br />22 <br />