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CO-0000906 <br />New Elk Mine Water Quality Assessment <br />for each factor in the equations noted above can be easily found in this assessment and therefore <br />calculations can be easily verified. <br />As noted in Table A-10, ADBACs and NILs are not applicable when the new WQBEL is less than <br />NILs when the <br />the existing permit limit, the new WQBEL load is less than the existing load <br />new WQBEL is less than the ADBAC. For the pollutants for and apply, as <br />highlighted by bold and italicized font, if the facility choose the NIS as the ropos ed the ADBAC t limit, <br />the ADBAC will not be applied. For each pollutant, the most likely <br />and the NIL is highlighted in underlined, bold, italics ont. <br />Additionally, the facility may complete an alternatives analysis, he Division also result in ADBACs <br />not being applied. These options can be further explored wth c: <br /> <br /> <br />VII. References <br />Classifications and Numeric Standards for Arkansas River Basin, Regulation No. 32, CDPHE, <br />WQCC, effective December 31, 2007. <br />The Basic Standards and Methodologies for Surface Water, Regulation 31, CDPHE, WQCC, <br />effective May 31, 2008. <br />Antidegradation Significance Determination for Newl or Increased Water Quality Impacts, <br />Procedural Guidance, CDPHE, WQCD, December <br />Memorandum Re: First Update to [Antidegradationl (.guidance Version 1.0, CDPHE, WQCD, April <br />23, 2002. <br />Lower Arkansas Rationale, Exhibit 2 WQCD Prehearing Statement, CDPHE, WQCD, effective <br />April 3, 2007. <br />Water-Quality-Limited Segments Requiring Total Maximum Daily Loads, Regulation 93, CDPHE, <br />WQCC, effective April 30, 2008. <br />Implementing Narrative Standards in Discharge Permits for the Protection of Irrigated Crops, <br />WQP-24, CDPHE, WQCD, effective March 10, 2008. <br />Paw 29 of 29 Last Revised August 26, 2008 <br />Appendix A cWQA Version s-atFnsL» 9