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PART 1 <br />Page No. 16 <br />Permit No. COG-850000 time that 2, SWMP Review/Changes: Uoftth minimum requirements of this nAftotify nrotifi ae at tion, the pernutteethe e pl>all <br />more cha es. <br />does not meet one or <br />make changes to the plan b and shall Divsubmit to the Division ision, the permittee shall have a30 dayseaftersuch including the both make the <br />Unless otherwise provided by t <br />necessary changes to the plan and to implement them. <br />The permittee shall amend the plan whenever there is a change in design, construction, operation, or maintenance <br />SWMP <br />which has a significant effect on the potential for the discharge of pollutants to the waters tths State, tetrf dthe ischarges <br />proves to be ineffective in achieving the general objectives of controlling pollutants associated with industrial activity. The Division in the same manner as described above, may review <br /> amendments <br />the plan. It is the permittee's responsibility to notify the Colorado Division of Mining and Geology (formerly the <br />Mined Land Reclamation Division) of any significant changes at their site resulting from the implementation of the <br />SWMP. <br />d. SWMP Availability 'W.A copy of the SWMP shall be provided to the Division, the Colorado Division of Mining, and Geology (CDMG), and/or to <br />EPA upon request, and within the period specified in the request. <br />All SWMPs required under this permit <br />of a facility considered reports discharges cove red by this permit shall make plans <br />the CWA. The owner or operator ortionofastormwaterpollution <br />portion <br />available to members of the public upon request. However, the permittee may claim any <br />plan as confidential in accordance with 40 CFR Part 2. <br />e. Allowable Non-Stormwater Discharges <br />The plan shall identify all sources of irrigation return flow and natural uncontaminated spring water that are combined with <br />stormwater discharges associated with industrial activity. The plan shall identify and ensure the implementation of <br />appropriate measures to prevent pollution of the non-stor mwater component(s) of the discharge. <br />Irrigation return flow and natural spring water which mixes with mine drainage or process water becomes mine drainage or <br />process water. <br />f. Employee Education <br />The permittee shall develop and implement employee education programs to informeersonnel at all levels ofresponsibility response, of the components and goals <br />essfor such instruction. Contrac otrnor <br />ra the S Th WMP. pedrmittee shall iden fyresperiodics topics <br />and material sonnet management p <br />temporary personnel shall be informed of mine operations and control features in order to prevent stormwater pollution <br />from occurring. <br />D. DEFINITIONS OF TERMS <br />1. "Acute Toxicity" ded if 1there shall be no acute toxicity in the effluent from ) a statistically significant difference in mortality (attth 95%otc <br />limitation confidence level) is observed for <br />exceeded or 2) <br />ity in any either species between thncontrol 100%o effl et) exceeds 50%t. Oor equal to th R" Chroniceletthality" occurs when a statistically slignifica t <br />dilution effluent uent (including <br />difference, at the 95% confidence e?? ?d ?e control. in the chronic test between the mortality of the test species in «IWC»°o <br />effluent (the chronic IW <br />2. Antidegradation limits apply as the average of all data collected for months in that group during a rolling 24-month period. <br />These limits become effective after data has been collected for all months in the group during the 24 months following <br />permit issuance. Where antidegradation groups are not indicated, data from all months will be utilized to determine the <br />reported value and the limit will become effective in the 24th month in which the permit is effective. <br />3. "Continuous" measurement, is a measurement obtained from an automatic recording device which continually measures <br />provides measurements. <br />control.eS in the chronic test <br />ffludifference, 5°1°00°/to rand thelevel, <br />est statistically <br />4. "Chronic lethality" occurs when <br />in 100%significant t (the chronic IWC <br />between the mortality of the species <br />for <br />5. Daily vlaximiun limitation" means the , lTThe. in. rantaneous value ris shall be defined as the analytical) result of any individual