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PARTI <br />Page 7 <br />Permit No. COG-SOOODO <br />B. EFFLUENT LIMITATIONS AND CONDITIONS -PROCESS WATER DISCHARGE <br />Effluent Parameter Measurement Frequency d/ y! <br />Flow, MGD Weekly <br />Oil and Grease, mg/I i/ Weekly <br />pH, s.u. Monthly <br />Total Suspended Solids, mg/1 Monthly <br />Total Dissolved Solids, mg/1 a/j/ Quarterly <br />Total Phosphorus (as P) mg/1 f/ Quarterly <br />Samale Tvce h/ <br />lastantmoous <br />Visual <br />Grab <br />Grab <br />Grab <br />Grab ' <br />Self-monitoring samples taken in compliance with the monitoring requirements specified above shall be takes <br />at the point of discharge prior In entering waters of the State. <br />b. Mineral mining and processing point source category - 40 CFR 436 - subparts E (gypsum), F (asphaltic <br />mineral), G (asbestos and wollestoaite), J (barite), K (fluorspar), L (salines from brine lakes), M (borax), N <br />(potash), O (sodium sul(ale), V (bentooite), W (megnesite), X (diatomite), Y (jade), Z (oovaculi[e), AF <br />(tripoli), and asphalt batch plants located at any facility otherwise covered by This general permit: <br />No monitoring is required (unless specified by the Division). An annual report to the Division on whether or <br />not a discharge of process water has taken place at the facility is roquired (see Part I.D.3.b of the permit). <br />4. Flow Measurirte Device <br />If not already a pert of the permitted facility, within ninety (90) days after the effective dale of the certification, a <br />flow measuring device shall be installed to give represwtative values of effluent quantities at the respective discharge <br />points. A flow measuring device will be applicable at all designated discharge points of process water. The flow <br />may also be determined by using the pump capacity multiplied by the length of tithe We pump is operated, provided <br />that the accuracy requirement (see below) is met. <br />When the facility is not operating, end no dischuge is occurring (e.g., if it is shut down for the winter), a flow <br />measuring device is not required to be on site. <br />Al the request of the Water Quality Control Division, or the Eavironmeatal Protection Agency, the permittee shall <br />show proof of the accuracy of any flow-measuring device used in obtaining data submitted in the monitoring report. <br />The flow-measuring device must indicate values within tea (IO) percent of the actual flow being discharged. <br />_. EFFLUENT 11MITATIONS AND CONDITIONS - STOR111WATER DISCHARGE <br />'This section Q. C) applies to all facilities with a discharge of slormweter.) <br />1. General Limitations <br />a. Slormwaler discharges from the industrial activity shall not cause or threaten to cause pollution, contamination <br />or degradation of any Slate waters. <br />b. There shall be no discharge of sanitary waste waters from toilets or related facilities. <br />c. No chemicals ere to be added to the discharge unless permission for the use o(a specific chemical is granted <br />by We permit issuing authority. In granting the use of such chemicals, addilioml limitations and monitoring <br />requirements may be imposed. <br />d. Bulk storage structures for petroleum products and other chemicals shall have adequate protection so as to <br />prevent any reasonable loss of Ute material from entering discharged waters or waters of the State. <br />