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Letter to Kye A. Abraham tlliam D. Collins <br />September 3, 1997 Page 2 <br />• <br />In addition to the initial permit limitations which aze based upon the previously referenced federal guidelines, the <br />draft discharge permit for the LKA International, Inc. Golden Wonder Mine facility also contains final discharge <br />limitations [hat are based upon water quality standazds. These final limits will be in effect on October 1, 1999. <br />Both [he initial and final permit limitations aze indicated below in Table R. <br />Table II -Applicable Permit Limitations for the LICP. International Inc. Golden W onder Discharge <br />A. Effluent Parameter <br />Flow, MGD (or gpm) <br />Oil and Grease, mg/P <br />pH, s.u. (minimum-maximum) <br />Total Suspended Solids, mg/Q <br />Tota] Dissolved Solids, mg/Q <br />Total Arsenic, mg/P, through 9-30-1999 <br />beginning 10-I-1999 <br />Cadmium, mg/Q <br />Total, though 9-30-1999 <br />Potentially Dissolved, beginning 10-I-1999 <br />Copper, mg(Q <br />Total, through 9-30-] 999 <br />Potentially Dissolved, beginnutg 10- I - 1999 <br />Dissolved Iron, through 9-30-1999 <br />beginning 10-1-1999 <br />Total Recoverable Iron, mg/P <br />through 9-30-1999 <br />begimting 10-1-1999 <br />Lead, mg/Q <br />Total, through 9-30-1999 <br />Potentially Dissolved, beginning 10-1-] 999 <br />Dissolved Manganese, mg/P <br />through 9-30-1999 <br />beginning 10-I-1999 <br />Total Recoverable Manganese, mg/Q <br />through 9-30-1999 <br />beginning 10-1-1999 <br />Total Mercury, mg/P <br />through 9-30-1999 <br />begin.-ting 10-1-1999 <br />Zinc, mg/Q <br />Total, through 9-30-1999 <br />Potentially Dissolved, beginning 10-1-1999 <br />Whole Ellluent Toxicity (WET), Chronic <br />Through September 30, 1999 <br />Begirmirtg October 1, 1999 <br /> Discharne Limitations <br />30-Dav Average 7-Dav Averag Daily Maximum <br />0.0144 (]0) N/A Report <br />N/A N/A 10.0 ;There shall be no <br /> discharge of floating solids. <br />N/A N/A 6.5 - 9.0 <br />20 NfA 30 <br />Report N/A Report <br />Report N/A Repoli <br />Report N/A 0.050 <br />0.05 N/A 0.10 <br />0.00066 N/A 0.0045 <br />0.15 N/A 0.30 <br />0.0065 N/A 0.0092 <br />Report N/A Report <br />0.30 N/A Repot <br />Report N/A Report <br />1.0 N/A Report <br />0.30 NlA 0.60 <br />0.0015 N/A 0.031 <br />Report N/A Report <br />0.050 N/A Report <br />Report N/A Report <br />1.0 NIA Report <br />0.001 N/A 0.002 <br />0.00001 N/A Report <br />0.75 N/A I.5 <br />0.059 N/A 0.065 <br />NIA NIA Report <br />N/A N/A See Part B. Below <br />B. Whole Effluent Toxicity -Chronic Lethality Limitation: Beginning October 1, 1999, there shall be no <br />statistically significant difference in lethality (at the 95% confidence level) between the control and any efl]uent <br />concentration less then or equal to the IWC value of 100 % e8luen[. Such limitation shall apply as a daily <br />maximum. <br />The above permit discharge limitations will be further discussed and explained in the draft peanit rationale when that <br />is sent out during a later public notice period. These limits are included in this letter al this time to inform you what <br />levels will be required for treatment. Since the previous data from the mine adit discharge indicates that these limits <br />