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PART! <br />Page b <br />Permit No COG-SOOOOD <br />B. EFFLUENT LIMITATIONS AND CONDITIONS -PROCESS WATER DISCHARGE <br />2. Industry-Specific Numeric Limitations (continued) <br />c. No process water discharge will be covered under this permit or authorized by cenification for discharges with the mineral <br />mining and processing point source category of 40 CFR 436 - subparts E (gypsum), F <br />(asphaltic mineral), G (asbestos and wollastonite), J (harite), K (fluorspar), L <br />(salines from brine lakes), M (borax), N (potash), O (sodium sulfate), V (bentonite), W <br />(tnagnesitel, X (diatomite), Y (jade), Z (novaculite), AF (tripoli). <br />3. Monitorine Requirements <br />In order to obtain an indication ofthe probable compliance or noncompliance with the etlluent limitations specified in Part 1.6, the <br />ermittee shall monitor all effluent ammeters at the following required hequencies. <br /> <br />Parameter <br />Measurement Frequency <br />Sample Type <br />Flow, MGD Weekly Instantaneous <br />pH, su. (minimum-maximum) Monthly In-situ <br />Total Suspended Solids, mg/I Monthly Grab <br />Oil & Grease, mg/I Weekly Visual See [.E,9. <br />Total Dissolved Solids, mg/I • Quarterly Grab <br />Total Phosphorus (as P) mg/I •• Monthly Grab <br />• Applicable to waters of the Colorado River Basin Only. See I.D. a, a. <br />•• Applicable to waters listed in 2. D.a.b. <br />Self-monitoring samples taken in mmpliance with [he tnonitaing requiremems specified abw< shall be taken at the point of disdtarge before rntering waters of [he State. <br />4. Flow Measurine Device <br />If not already a part of the permitted facility, within ninety (90) days after the effective date of the certification, a flow measuring <br />device shall be installed to give representative values of effluent quantities at the respective discharge points. A flow measuring <br />device will be applicable at all designated discharge points of process water. The flow may also be determined by using the pump <br />capacity multiplied by the length of time the pump is operated, if the accuracy requirement (see below) is met. <br />When the facility is not operating, and no discharge is occurting (e.g., if it is shut down for the winter), a flow measuring device is <br />not required to be on site. <br />At the request of the Water Quality Control Division, or the Environmental Protecion Agency, the permiaee shall show proofof[he <br />accuracy ofany flow-measuring device used in obtaining data submitted in the monitoring report. The flow-measuring devicemust <br />indicate values within ten (10) percent ofthe actual flow being discharged. <br />C. EFFLUENT LIMITATIONS AND CONDITIONS - STORMWATER DISCHARGE <br />(This section (I.C) applies to all facilities with a potential discharge of stornwater.) <br />General Limitations <br />a. Stormwater discharges from the industrial activity shall not cause or threaten to cause pollution, contamination, or <br />degradation ofany State waters. <br />b. There shall be no dischazge of sanitary wastewaters from toilets or related Facilities. <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 tray be imposed. <br />d. Bulk storage structures for petroleum products and other chemicals shall have adequate protection to prevent any reasonable <br />loss of the material from rntering discharged waters or waters of the State. <br />e. All dischazgers must comply with the lawful requirements of counties; drainage districts and other state or local agencies <br />regarding any discharges of stortnwater to storm drain systems or other watercourses trader their jurisdiction. <br />