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PART <br /> Page 15 of 67 <br /> Permit No.: COG500000 <br /> c. Industrial Sand (SIC code 1446) (continued) <br /> Table C.1.4—Applicable Limitations for process-generated wastewater from facilities that use HF Flotation <br /> Limitations Monitoring Frequency <br /> ICIS Parameter ta <br /> day 7 day Dail Max. 2 year Minor Major STm Jim <br /> Code age average y average Facilities Facilities yp <br /> General Permit Requirements <br /> Limit in Monthly 2x/month Recorder/ <br /> 50050 Flow, MGDl ---- Report ---- (Continuous or (Continuous or <br /> cert. In-situ <br /> InstantaneousZ) Instantaneousz) <br /> 00400 pH, s.u. ---- ---- 6.5-9.0 ---- 2x/month Weekly Grab <br /> 84066 Oil and Grease, <br /> ---- ---- ---- ---- 2x/month Weekly Visual; <br /> mg/I <br /> 03582 Oil and Grease, <br /> ---- ---- 10 ---- Contingent Weekly Grab; <br /> mg/I <br /> 00951 Total Fluoride, <br /> mg/I9 <br /> ---- ---- 2.0 ---- 2x/month 2x/month Grab <br /> Federal Effluent Limitation Guidelines <br /> 51412 0.023 Ibs 0.046 Ibs <br /> Total Suspended per 1,000 per 1,000 <br /> Solids, Ibs/1000 Ibs total Ibs total ---- 2x/month 2x/month Calculated <br /> Ibs production' <br /> product product <br /> 00951 0.003 Ibs 0.006 Ibs <br /> Total Fluoride, per 1,000 _ __ per 1,000 <br /> Ibs/1000 Ibs Ibs total Ibs total ---- 2x/month 2x/month Calculated <br /> productions product I product <br /> Site Specific Requirements <br /> 515001 Flow,Total, MG Report Continuous or Continuous or <br /> Quarterly ---- ---- ---- Instantaneous' Instantaneousz Calculated <br /> Total <br /> 51500 EG Flow,Total, MG Report ---- ---- ---- <br /> Continuous or Continuous or Calculated <br /> Monthly Total Instantaneous' Instantaneousz <br /> 70295 Total Dissolved Report ---- ---- ---- Quarterly Quarterly Grab <br /> Solids, mg/IS <br /> 00665 Total Phosphorus <br /> (as P), mg/I' Various Various Various ---- Various Various Composite <br /> 00665 Total Phosphorus Various ---- ---- --- Various Various Calculated <br /> (as P), lb/month' <br /> 00665 Total Phosphorous, <br /> cumulative <br /> Ibs/previous 12 Various ---- ---- ---- Various Various Calculated <br /> consecutive <br /> months <br /> 01323 Selenium, <br /> Potentially Various ---- Various Various 2x/month Weekly Grab <br /> Dissolved, µg/1 <br /> 01323 Selenium, <br /> Potentially Various ---- Various ---- I 2x/month Weekly Calculated <br /> Dissolved, Ibs/day' <br /> 00094 Electrical <br /> Conductivity(EC), Various j - -- Quarterly Quarterly Grab <br /> dS/m <br />