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PART 11 <br />Page No. 5 <br />Permit No. COG-500000 <br />2. Effluent Limitations and Monitoring Requirements- Phosphate Rock Mining.-means process wastewater generated by the <br />mining or quarrying of phosphate bearing rock, ore, or earth, for the phosphate content. <br />The above category is subject to 40 CFR Part 436 Subpart R (Phosphate Rock). The following limitations apply as outlined in this subpart. <br /> 'Iitnttatians -?--- <br /> <br />Parameter <br />30-Day <br />77Day <br />Daily <br />Rationale <br />Ivlonitoring <br />Fre ?cy Sample <br /> <br />Type <br /> <br /> General Permit Requirements - - --- <br />Flow, MGD Report NA Report Discharge Evaluation Continuous /2 <br />Instantaneous Recorder / <br />In-situ <br />pH, s.u. N/A NA 6.5-9.0 Water Quality Standards Weekly Grab <br />Oil and Grease, mg/1 N/A NA 10 State Effluent Regulations Weekly Visual 3 <br /> Federal Effluent Limitation Guidelines <br />Total Suspended Solids, mg/1 30 NA 60 Federal ELG Weekly Grab <br />ite Specific Limitation <br />Total Dissolved Solids, mg/1 • Report NA Report Salinity Regulations Quarterly ° Grab <br />Total Phosphorus (as P), mg/1=• Report NA Various Control Regulations Monthly Grab <br />Other Pollutants of Concern Various NA Various Water Quality Standards Weekly Grab <br />Whole Effluent Toxicity (WET) State Permit Limitations Quarterly 3 Grab/Test <br />Chronic Stat Diff and IC25 > IWC Quarterly Grab <br />Acute LC50 > 100% <br />Footnotes 1-4, * and ** can be found under Part I.B.1 <br />3. Effluent Limitations and Monitoring Requirements - Industrial Sand-means process wastewater generated during the mining and <br />processing of sand and gravel for uses other than construction and fill. These uses include, but are not limited to, glassmaking, <br />molding, abrasives, filtration, refractories, and refractory bonding. This does not include BF flotation facilities, which are covered in a <br />different table. <br />The above category is subject to 40 CFR Part 436 Subpart D (Industrial Sand). The following limitations apply as outlined in this subpart. <br /> L?irgtations <br />' <br />AQrnutotu?g <br />Sample <br />Paraniewr, 30-Day 7-08 <br />y Daily Rationale c <br />Fre <br />u Type <br /> Max - - ... ,.. q <br />en <br />y <br /> General Permit Requirements: <br />Flow, MGD Report NA Report Discharge Evaluation Continuous /Z Recorder / <br /> Instantaneous In-situ <br />pH, s.u. N/A NA 6.5-9.0 Water Quality Standards Weekly Grab <br />Oil and Grease, mg/l N/A NA 10 State Effluent Regulations Weekly Visual 3 <br /> Federal Effluent Limitation Guidelines <br />Total Suspended Solids, mg/1 25 NA 45 Federal ELG Weekly Grab <br /> Site Specific Limitations <br />Total Dissolved Solids, mg/1 • Report NA Report Salinity Regulations Quarterly ° Grab <br />Total Phosphorus (as P), mg/1 •• Report NA Various Control Regulations Monthly Grab <br />Other Pollutants of Concern Various NA Various Water Quality Standards Weekly Grab <br />Whole Effluent Toxicity (WET) <br />Chronic Stat Diff and IC25 > IWC <br />Acute LC50 > 100% <br />State Permit Limitations <br />Quarterly 3 Grab/rest <br />Quarterly Grab <br />Footnotes 14, * and ** can be found under Part l.B.1.