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COLORADO DEP.4R77NENT OF PUBLIC HEALTH AND ENVIRONMEM, Water Quality Control Division <br />Rationale -Page 4~, Permit No. CO-0032115 <br />'% PERFORMANCE HISTORY <br />A. Monitoring Data <br />1. Discharee Monitorinx Reports: Tables V-/ through V-8 summorize the effluent data for outfalls 001, 002, rep•:rtc~: <br />on (he quarterly Discharge Monitoring Reports (DMR's) Jor the Trapper Mining, Inc. facility From January 1 <br />thrortgh December 31, 1995. Where the fabler indicate less than jour quarterly reporting periods, the outfa!! did <br />not discharge jor one or more reporting periods. The permittee reported "No Discharge" for the entire year jor <br />ou~tlls 003, 005, 009, 012, 014, 016 and 0/7. <br />Table V-1 -Self-Monitoring Results jor Outjall 001 <br />Flaw, MGD <br />30-day avg 4 0.0653/0.0010/0.2208 None - <br />darly max 4 0.4574/0.0194/1.7456 None - <br />7SS, mg/P <br />30-day avg 4 5/<5/14 35 0 <br />dally rrws 4 13/2/36 70 0 <br />Total Iron, mg/P <br />30-day avg 4 0.24/0.02/0.56 3.5 0 <br />daily mar 4 0.49/0.02/1.35 7.0 0 <br />Settleable Solids, mP/l 4 <0.1/<0.1/<0.1 0.5 0 <br />Oil & Grease, mg/P 4 None Vsible/None Ysible 10 0 <br />pH, s.u. 4 -/70/8.8 6.5-9.0* 0 <br />Whole EJjluent Tosiriry, Acute <br />Cerioda hrtia dubia 3 > 100 °b > 100% 0 <br />ate meow 3 >]00`% >/00% 0 <br />Total Dissolved Solids mX/P 3 1925/1300!2550 none - <br />Table V-2 -Self-Monitoring Results for Outfall 002 <br />o o Re orted Previou No. o <br />N ' <br />f P .s f <br />ReCpporhrig :':: ::..: Concentmnons . Permt( limrtatrpn <br />'~~n..~...,..r..~~~ .. ~ .... .~. ~.~Virtivle : ~ AbolMia/MaY ~ ~limitotinn Excursions <br />Flow, MGD <br />30-day avg <br />daily max <br />TSS, mg/l <br />30-day avg <br />daily max <br />Total Iron, mg/P <br />30day avg <br />daily max <br />Settleable Solids, mP/P <br />Oil & Grease, mg/l <br />pH, s.u. <br />Tonal Dissolved Solids, mg/P <br />Whole Effluent Toxicity. Acute <br />4 0.1300/0.0698/0.2516 None - <br />4 0.4170/0.1616/1.0151 None - <br />4 8.6/<S/19 35 0 <br />4 23/6/55 70 0 <br />4 0.65/0.09/1.62 3.5 0 <br />4 1.68/0.10/4.41 7.0 0 <br />4 <0.1/<0.1/<0.1 0.5 0 <br />4 None Vsible/None Ysible /0 0 <br />4 -/73/8.7 6.5-9.0* 0 <br />4 1400/530/1880 none - <br />1 >100% >IW% 0 <br />I >100% >!00% 0 <br />* Seasonal pH limitations: Oct-May=6.5-9.0, !un-Sep=6.5-9.5 <br />