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PART I Page 15 Permit No. CO-0000221 B. MONTCORING 12EQUQtEMENTS 1. Freouencv and Sample Tvoe (continued) c. OuHall 009' Effluent Parameter Flow. MGD Total Suspended Solids, mg/P Total Iron, mg/P Settleable Solids, mP/P Oil and Grease, mg/P pH, s.u. Measurement Freauencv Wcekly Monthly Monthly Monthly Weekly weekly Sample Tvoe Instantaneous or Continuous Grab Grab Grab Visual In-sim Winter Monitorine Exemption: For the noted outfalls, during the period from November through Febtvary each year, flow, oil and grease and pH monitoring may be performed on a monthly frequency, if adverse weather conditions prohibit safe access to the discharge points. When this occurs, the permittce shall so indicate in cover letters to the appropriate Discharge Monitoring Reports. , ** WET Testing is waived for the first calendar quartets and may be waived for the fourth quarters if inaccessibility is demonstrated. See Winter Monitoring Exemption above. d. Oil and Grease Monitorine CJ For every outfall with oil and grease monitoring, in the event an oil shcen or floating oil is observed, a grab sample shall be collec[ed, analyuA, and reported on the appropriate DMR. In addition, corrective action shall be taken immediazely to mitigate the discharge of oil and grease. A description of the corrective action taken should be included with the DMR. e. Salinity Parameters In order to obtain an indication of the quantity of Salinity being discharged from the site, the petmit[ce shall monitor the wastewater effluent at the following frequencies: Outfalls Freauencv 002, 003, 004, 005, 006, 008, 009, O10 and 011 Quarterly Self-monitoring sampling by the per»tit[ce for compliance with be performed at the following locations: outfalls 002, 003, 004 sedimenta[ion ponds prior to entering the immediate receiving Sample Tvue Grab the monitoring requiremenu specified in Part I.B.Z. shall 005, 006, 008, 009, 010 and 011 - at the outfall of the waters. Tf the permittce, using the approved analy[ical methods, monitors any parameter more frequently than required by this permi[, then the results of such monitoring shall be included in Ute calculation and reporting of [he values required in the Discharge Monitoring Report Form or other forms as required by the Division. Such increased frequency shall also be indicated. See Par) I.C. for Definitions. INDBP 619193