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COLORADO Rationale - P V. PERFO A. Mort I. DEPARTMENT OF PUBLIC HEAL AND ENVIRONMEArl; Wager Qua[iry Control Division age 4, Permit No. CO-0000221 MANCE HISTORY toring Data Discharge Monitoring Reports: Tab les V-1 through V-7 summarize the efjIuem data reported on the quarte Discharge Monitoring Reports (DM s) jog outfalls 002, 003, 004, 006, 007, 008 and 009 at the Seneca G Company faciliry• from January 1, 1 9S through December 31 , 1996 (eight calendar quarters unless orherw noted). Outfalls 010 and 011 repo ed "no discharge" during this period. Table V-1 -Self-Monitoring Resu ~ts jog OatfaU 002 Reported Previous No. of . Concentrations Permit limitation Parameter Avg/Min/M~u limitation Excursions Flow, MGD 30day avg 0.89/0.1366/1.074 none - daily max 1.32/0.2261/4.797It none - TSS, mg/P 30-day avg IS/8/20 35 0 daily max 15/8/20 70 0 Total /ron, mg/P 30day avg O.ll/<0.02/0.49 3.S 0 daily mar 0.11/<0.02/0.49 7.0 0 Oil & Grease, mg/P none visible 10 0 pH, s. u. -/7.82/8.64 6.5-9.0 0 Total Dissolved Solids, mg/P 30-day avg 2953/2130/3373 none - daily max 3236/2960/3470 none - Whole Effluent Toxicity, Acute Ceriodaohnia so. 2 0(2 LC,,,> 100% LC.,,>100% 0 Table V-2 -Self-Monitoring Resr~ lts for Outjall 003 Reported Previous No. of ` Concentrations Permit limitation Parameter Avg/Min/M'ax !imitation Excursions Flox~. MCD 30day avg 0.!06/0.066/0.131 none - daily mac 0.185/0.0977/0.2261 none - TSS, mg/P 30-day avg 24/14/52 35 I daih~ maz 24/14/52 70 0 Totallron, mg/f 30day avg 0.32/0.06/1.5 3.5 0 daily max 0.32/0.06/1.5 7.0 0 Oil & Grease, mg/P none risible 10 0 pH, s.u. -/7,55/8.64 6.5-9.0 0 Total Dissolved Solids, mg/P 30day avg 2894/2167/3127 none - daily max 3138/2820/3450 none - Whole EJjluem Toxicity, Acute Ceri hnia s . 2 0 2 LC > 70040 LC,">]00% 0 R i I rly tat ise ~~ i