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PART <br />Page 10 of 47 <br />Permit No.: C00000213 <br />Alternate Limits Outfalls 012 and 016 (greater than the 10 -year, 24-hour precipitation event) <br />ICIS <br />Code <br />Effluent Parameter <br />Effluent Limitations Maximum Concentrations <br />Monitoring Requirements <br />Code <br />30 -Day <br />Average <br />7-Dav <br />Average <br />Daily Maximum <br />Frequency <br />Sample Type <br />00530 <br />TSS (mg/1) <br />Report <br />December 1 <br />Report <br />Monthly <br />Grab <br />00980 <br />Fe, TR (µg/1) <br />Through 02/29/2020 <br />Report <br />Report <br />Monthly <br />Grab <br />Beginning 03/01/2020 <br />1000 <br />ReportMonthly <br />Grab <br />00545 <br />Settleable Solids (ml/1) <br />Report <br />Report <br />Monthly <br />Grab <br />2. Narrative Water Quality Based Effluent Limitation (Outfalls 007, 008, 009, 011, 012, 016 and 017) <br />Discharges authorized under this permit must be controlled as necessary to meet applicable water quality standards. <br />The Division expects that compliance with the other conditions in this permit will control discharges as necessary to meet <br />applicable water quality standards. If at any time the permittee becomes aware, or the Division determines, that the authorized <br />discharge causes or contributes to an exceedance of applicable water quality standards, the permittee must take corrective <br />action as required, document the corrective actions as required, and report the corrective actions to the Division as required <br />(see CORRECTIVE ACTIONS). <br />3. Federal Effluent Limitation Guideline -Sediment Control Plan (Outfalls 007, 008, 009, 011, and 017) <br />ICIS <br />Code <br />Description <br />Due date <br />Frequency <br />The permittee shall submit proof to the division that the Sediment Control Plan (SCP) <br />00308 <br />required under Subpart H (40 CFR Part 434.82) has been approved by the Colorado <br />December 1 <br />Annual <br />Division of Reclamation, Mining, and Safety, and is implemented at the facility. <br />4. Practice -based Effluent Limitations (Outfalls 007, 008, 009, 011, 012, 016 and 017) <br />Practice -based limitations required by this permit include the following: <br />a. Minimize Exposure <br />The permittee must minimize (as defined in Appendix B) the exposure of pollutant sources associated with manufacturing, <br />processing, and material storage areas (including loading and unloading, storage, disposal, cleaning, maintenance, and <br />fueling operations) to rain, snow, snowmelt, and runoff. Minimizing exposure may include locating these industrial <br />materials and activities inside or protecting them with storm resistant coverings. <br />b. Good Housekeeping <br />The permittee must keep clean all areas exposed to stormwater runoff, as necessary to minimize potential sources of <br />pollutants, using such measures as sweeping at regular intervals, keeping materials orderly and labeled, and storing <br />materials in appropriate containers. <br />c. Maintenance of Control Measures <br />The permittee must maintain all control measures (structural and non-structural) used to achieve the effluent limits <br />required by this permit in effective operating condition. The permittee must conduct maintenance of control measures in <br />accordance with this permit (see CONTROL MEASURES). <br />d. Spill Prevention and Response Procedures <br />The permittee must minimize the potential for leaks, spills and other releases that may be exposed to stormwater and <br />develop plans for effective response to such potential spills. The permittee must at minimum implement: <br />