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PART I <br /> Page 14 of 67 <br /> Permit No.: COG500000 <br /> c. Industrial Sand(SIC code 1446) <br /> Table C.1.3—Applicable Limitations for mine dewatering;and process-generated wastewater from facilities that DO NOT <br /> use HF Flotation <br /> Limitations Monitoring Frequency <br /> ICIS Parameter 30 day 7 day Daily 2 year Minor Major Sample <br /> Code average average Max. average Facilities Facilities Type <br /> General Permit Requirements <br /> Monthly 2x/month <br /> Limit in Recorder/ <br /> 50050 Flow, MGDl ---- Report ---- (Continuous or (Continuous or <br /> cert. Instantaneous2) Instantaneous2) In-situ <br /> 00400 pH,s.u. ---- ---- 6.5-9.0 ---- 2x/month Weekly Grab <br /> 84066 Oil and Grease,mg/I ---- ---- ---- ---- 2x/month Weekly Visual3 <br /> 03582 Oil and Grease,mg/I ---- ---- 10 ---- I Contingent Weekly Grab <br /> Federal Effluent Limitation Guidelines <br /> 00530 Total Suspended 25 ---- 45 ---- 2x/month Weekly Grab <br /> Solids,mg/I$ <br /> Site Specific Requirements <br /> 515001 Flow,Total, MG Report Continuous or Continuous or <br /> Quarterly ---- ---- ---- Instantaneous2 Instantaneous2 Calculated <br /> Total <br /> 51500 EG Flow,Total, MG Report Continuous or Continuous or <br /> Monthly ---- ---- ---- Instantaneous2 Instantaneous2 Calculated <br /> Total <br /> 70295 Total Dissolved Solids,mg/Is Report ---- ---- Quarterly Quarterly Grab <br /> 00665 Total Phosphorus(as Various Various Various ---- Various Various Composite <br /> P), mg/1' <br /> 00665 Total Phosphorus(as Various ---- ---- ---- Various Various Calculated <br /> P), lb/month' <br /> 00665 Total Phosphorous, <br /> cumulative Various ---- ---- ---- Various Various Calculated <br /> Ibs/previous 12 <br /> consecutive months <br /> 01323 Selenium, Potentially Various ---- Various Various 2x/month Weekly Grab <br /> Dissolved, µg/I <br /> 01323 Selenium, Potentially Dissolved,Ibs/day 7 Various ---- Various ---- 2x/month Weekly Calculated <br /> 00094 Electrical Conductivity Various ---- ---- ---- Quarterly Quarterly Grab <br /> (EC),dS/m <br /> Various Other Pollutants of Grab or <br /> Various ---- Various Various Various Various <br /> Concern Composite <br /> Various Whole Effluent Toxicity(WET) <br /> 3 <br /> Chronic Stat Diff and IC25>_IWC ---- Composites/ <br /> Quarterly Quarterly Test <br /> Acute LC50>100% ---- Grab <br /> Notes 1-7 are located with Table C.1.1 <br /> Note 8: Precipitation Event Relief: As specified by the ELG, any overflow from facilities subject to Subpart D — Industrial <br /> Sand shall not be subject to the limitations for total suspended solids if the facility is designed, constructed, and maintained <br /> to contain or treat the volume of waste water which would result from a 10-year,24-hour precipitation event. <br />