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COLORADO DEPARTMENT OFP(/BLICHEALTHAND ENIQRONMENT, Water Qua/ity Control Division
<br />Rationale-Page /0, Permit No. C0.0027l46
<br />Elimination or reduction of a wastewater pollutant can also result in a reduction irs an air pollutant or a reduction in the
<br />amount of hazardous materials that must be handled or disposed.
<br />This discharge permit does not specifically dictate waste minimization conditions at this time. The Division does strongly
<br />encourage the permittee to conn'nue working in developing and implementing a waste minimization plan. Several industries
<br />have already developed plans and found that implementation resulted in substantial savings. Both the Colorado Department
<br />of Public Health and Environment and the Environmental Protection Agency (EPA) have information and resources
<br />available. For more to-depth information, please contact these agencies.
<br />Christopher Gates
<br />September 8, 2003
<br />J'll. REFERENCES
<br />A. "Basic Standards and Methodologies for Surface Water", Regulation No. 31, Colorado Water Quality Control Commission,
<br />effective October 30, 2001.
<br />B. "Classifications and Numeric Standards for Lower Colorado River Basin ", Regulation No. 37, Colorado Water Quality
<br />Control Commission, effective August 30, 2002.
<br />C. "Colorado Discharge Permit System Regulations", Regulation No. 61, Colorado Water Quality Control Commission,
<br />effective June 30, 2003.
<br />D. "Regulations for Effluent Limitations ", Regulation No. 61, Colorado Water Quality Control Commission, effective December
<br />30, 1998.
<br />E. "Colorado River Salinity Standards ", Regulation No. 39, Water Quality Control Commission, effective August 30, 1997.
<br />F. "Antidegradation Significance Determination for New or Increased Water Quality Impacts, Procedural Guidance, "
<br />Colorado Department ofPublic Health and Environment, Water Quality Control Division, effective December 2001.
<br />G. "Determination of the Requirement ro Include Water Quality Standards-Based Limits in CDPS Permits Based on
<br />Reasonable Potential Procedura! Guidance, " Colorado Department of Public Health and Environment, Water Quality
<br />Control Division, effective December 2002.
<br />H. "The Colorado Mixing Zone Implementation Guidance, "Colorado Department of Public Health and Environment, Water
<br />Quality Control Division, effective Aprt12002.
<br />I. U.S. Government, Office of the Federal Register, National Archives and Records Administration. Code of Federal
<br />Regulations (Part 434). Washington: 2002.
<br />i'III. PUBLIC NOTICE COMMENTS
<br />The permittee made the following comments with regard to permit accuracy:
<br />Comment I Page 1 ojthe rationale, Table II-1, indicates Outja11007 contains Pond 005. This is incorrect. Dutfall 007 should
<br />show Pond 73 as being the correct wastewater source.
<br />Response 1 Table II-I has been corrected to show Pond 13 as the wastewater source, not Pond S.
<br />Comment 2 Part YI, Section 1 (g) of the rationale indicates that a letter be submitted demonstrating that treatment for salinity is
<br />not economically feasible, as per Section 61.8(2)(l)(i)(A) of the Colorado Discharge Permit System Regulations.
<br />Wherein, it allows for a waiver ojTDS limitations upon submittal of a report that demonstrates that achievement of
<br />zero salt loading or, in the event that is not achievable, discharge of less than one ton per day, is not economically
<br />feasible. In fact, a salinity report was sent February 26, 1993 to the Division, and responded to by the Division that a
<br />limit would be unnecessary and monitoring only would be a requirement.
<br />~.sponse 2 The Division in receipt of the letter, and concurs that the requirements of the aforementioned Regulation have been
<br />met. The language requiring the submittal of a report has been removed.
<br />Christopher L. Gates
<br />November 3, 2003
<br />Lest Revised: f //38003
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