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PARr t <br />Page 5 <br />Permit Nn COG-500000 <br />B. EFFLUENT LIMITATIONS AND CONDITIONS -PROCESS WATER DISCHARGE <br />(This section (I.B}only applies to facilities with a discharge of process water.) <br />General Limimtions <br />a. There shat( be no discharge of sanimry wastewaters from roilets or related facilities. <br />b. There shall be no discharge of floating solids or visible foam. <br />c. No chemicals are to be added to the discharge unless the permit issuing authority grants permission for the use of a specific <br />chemical. In granting the use of such chemicals, additional limitations and monitoring requirements may be imposed. <br />d. Bulk storage structures for petroleum products and other chemicals shall have adequate protectionto prevent anyreasonable <br />loss of the material from entering discharged waters or waters of the State. <br />2. Industry-SDecific Numeric Limitations <br />Beginning October 1, 2002 and lasting through September 30, 2002, [he permittee is authorized to discharge from [he process water <br />outfalls, under the industrial category below, as identified in their permit certification. <br />In accordance with the Water Qualiry Control Commission Regulations for Effluent Limitations, Regulation 62, 5 C.C.R. <br />1002 - 62 and State Discharge Permit System Regulations, Section 61.8 (2), 5 C.C.R. 1002-61, the permitted discharge shall not <br />contain eff}uent parameter concentrations, which exceed the following limitations: <br />a. Mineral mining and processing point source categary- 40 CFR 436 - subpart B (crushed stone), C (construction sand and <br />gravel), R (phosphate rock) -and all other industrial facilities covered under SIC Code 14, (except graphite and those <br />facilities specifically listed in paragraph c, below), and concrete and asphalt batch plants located at any facility otherwise <br />covered by this general permit: <br />P Discharge Limitation (See definitions Part I.E.) <br />arameter 30-day avg 7-day avg Daily max <br />Flow, MGD Report NA Report <br />pH, su. (minimum-maximum) NA NA 6.5-9.0 <br />Total Suspended Solids, mg/1 30 45 NA <br />Oil & Grease, mgll NA NA 10 <br />Total Dissolved Solids, mg/1 • NA NA Report <br />Total Phosphonts (as P) mg/1 •• NA NA Report <br />• Applicable to waters of the Colorado River Basin Onb~ Sec LD.B.a <br />•• Appbrable to water listed in LD.8.6. <br />Mineral mining attd processing point source category - 40 CFR 436 -subpart AL (graphite): this permit does not cover the discharge ofprocess <br />wastewater from graphite mines. (See Section V.A.2.d of the Rationale.) <br />b. Mineral mining and processing point source category - 40 CFR 436 - subpart D <br />(industrial sand) (except for process-generated wastewater from facilities employing HF <br />floatation): <br /> Discharge Limitation (See definitions Part I.E.) <br />Parameter 30-day avg 7-day avg Daily max <br />Flow, MGD Report NA Report <br />pH, su. (minimum-maximum) NA NA 6.5-9.0 <br />Total Suspended Solids, mgR 25 45 NA <br />Oil & Grease, mg/1 NA NA 10 <br />Total Dissolved Solids, mg/I • NA NA Report <br />Total Phosphorus (as P} mg/I •• NA NA Report <br />• Applicable eo aatera of the Colorado River Basin Only. See I. D.6.a. <br />•• Applicable to aatera listed is ~I .D.9.b. <br />