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• <br /> WASTE DISCHARGE REQUI ITS • <br /> SIMPSON PAPER COMPANY, RIPON MILL <br /> SAN JOAQUIN COUNTY <br /> 30-day Annual Daily <br /> Constituent Units Average Average Maximum <br /> a. B.O.D. (l) mg/l 45 60 <br /> lbs/day* 676 480 900 <br /> kg/day* 307 218 409 <br /> b. Total Suspended mg/1 45 60 <br /> Matter lbs/day* 676 650 900 <br /> kg/day* 307 295 409 <br /> C. Settleable Matter ml/1 - - - - 0.1 <br /> d. Chlorine Residual mg/l - - - - 0.1 <br /> (1) 5-Day, 200C Biochemical Oxygen Demand <br /> *Based upon a discharge rate of 1.8 MGD (79 1/sec) <br /> 2. Survival of test fishes in 96-hour bioassays of undiluted wastes shall <br /> be no less than: <br /> Minimum, any one bioassay - - - - - - - - - -70% <br /> Median, any three or more consecutive bioassays - - - -90% <br /> 3. The discharge shall not have a pH less than 6.5 nor greater than 8.5. <br /> 4. Bypass or overflow of untreated or partially treated waste is prohibited. <br /> 5. The discharger shall use the best practicable cost effective control tech- <br /> nique currently available to limit mineralization to no more than a reason- <br /> able increment. <br /> B. Land Disposal of treated wastewater: <br /> 1. The discharge shall not cause degradation of any water supply. <br /> 2. Runoff form disposal areas and lands irrigated with wastewater shall be <br /> contained so as to prevent discharge into surface waters. <br /> C. Sludge Disposal: <br /> 1. Collective screenings, sludges, and other solids removed from liquid <br /> waste shall be disposed ot in such a manner as to prevent entry o <br /> such materials into surface waters. <br /> 2. The disposal of sludge shall not cause degradation of any water supply. <br /> D. Receiving Water Limitations : <br /> - 3 - <br />