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PART:I. Page Nu. fi'~ Permit No. COG-850000 B. EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS 2. Stormwater Management Plan (SWMP) (continued) The perrtrittee shall amend the plan whenever there is a change in design, constmction, operation, or maintenance which has a significant effect on the potential for the discharge of pollutants to the waters of the State, or if [he SWMP proves to be ineffective in achieving the general objectives of controlling pollutants in stormwater discharges associated with industrial activity. The Division in the same manner as described above, may review amendments to the plan. It is the permittee's responsibility to notify the Colorado Division ofMining and Geology (formerly the Mined Land Reclamation Division) of any significant changes at their site resulting from the implementation of the SWMP. d) SWMP Availability A copy of the SWMP shall be provided to the Division, the Colorado Division of Mining, and Geology (CDMG), and/or to EPA upon request, and within the period specified in the request. All SWMPs required under this permit are considered reports that shall be available to the public under Section 308(b) of the CWA. The owner or operator of a facility with stormwater discharges covered by this permit shall make plans available to members of the public upon request. However, the permittee may claim any portion of a stormwater pollution plan as confidential in accordance with 40 CFR Part 2. e) Allowable Non-Stormwater Discharges The plan shall identify all sources of irrigation return flout and natural uncontatninated spring water that aze combined with stormwater discharges associated with industrial activity. The plan shall identify and ensure the implementation of appropriate measures to prevent pollution of the non-stormwater component(s) of the discharge. Irrigation return flow and natural spring water, which mixes with mine drainage or process water becomes mine drainage or process water. f) Emnlovee Education The permittee shall develop and implement employee education programs to inform personnel at all levels of responsibility of the components and goals of the SWMP. Education should address topics such as spill response, good housekeeping, and material management practices. The permittee shall identify periodic dates for such instruction. 3. Monitorin¢ Reouirements In order to obtain an indication of the probable compliance or noncompliance with the effluent limitations specified in Part I.B.1, the permittee shall monitor all effluent pazameters at the following frequencies. a) Active Minin¢ Outfalls =~Patameter vSatttpleType `MeasuiementFtequency- .,: ...,. _ __._.a __ _ _. __ _ ~ .____. _~. ___... ~ -_,.~ _ w __ _ __~_.. .--_ __. ~._ _ -_~_ . Flow, MGD Weekly Instantaneous or Continuous TSS, mg/1 Monthly Grab Total Iron, mg/1 Monthly Grab Total Manganese, mg/1 Monthly Grab Settleable Solids, mUl Monthly Grab Oil and Grease, mg/I Weekly Visual pH, s.u. Weekly In-situ Total Dissolved Solids, mg/I Quarterly Grab Total Phosphoms (as P), mg/1 Quarterly Grab b) Post-Mining Outfalls Settleable Solids, mUl Monthly Grab Oil and Grease, mg/I Monthly Visual pH, s.u. Monthly In-situ Total Dissolved Solids, mg/1 Quarterly Grab Totat Phosphorus (as P), mg/1 Quarterly Grab or Continuous