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COLORADO DEPARTMENT OF HEALTH, Water Quality Control Division Rationale - Page 21. Permit No. CO-0027154 VI. TERMS AND CONDITIONS OF PERMIT A. Effluent Limitations (continued) e) Annual Revort: The permittee will be required to submit an annual report, covering October 1 through September 30, on the overall compliance with the SWMP. 7. Economic Reasonableness Evaluation: Section 25-8-503(8) of the revised (June 1985) Colorado Water Quality Control Act required the Division to "determine whether or not any or all of the water quality standard based effluent limitations are reasonably related to the economic, environmental, public health and energy impacts to the public and affected persons, and are in furtherance of the policies set forth in sections 25-8-192 and 25-8-104." The Regulations for the State Discharge Permit System, 6.1.0, further define this requirement under 6.12.0 and state: "Where economic, environmental, public health and energy impacts to the public and affected persons have bean considered in the classifications and standards setting process, permits written to meet the standards may be presumed to have taken into consideration economic factors unless: a) A new permit is issued where the discharge was not in existence at the time of the classification and standards rulemaking, or b) In the case of a continuing discharge, additional information or factors have emerged that were not anticipated or considered at the time of the classification and standards rulemaking." The evaluation for this permit shows that the Water Quality Control Commission, during their proceedings to adopt the Classification and Numeric Standards for the Lower Colorado River Basin, considered economic reasonableness. Furthermore, this is not a new discharger and no new information has been presented regarding the classifications and standards. Therefore, the water quality standard-based effluent limitations of this permit are determined to be reasonably related to the economic, environmental, public health and energy impacts to the public and affected persons and are in furtherance of the policies set forth in Sections 15-8-102 and 104. If the permittee disagrees with this finding, pursuant to 6.12.0(2)(b) the permittee should submit all pertinent information to the Division during the public notice period. 8. Antidegradation: These are not reviewable waters pursuant to Section 3.1.8(3)(a) of the Basic Standards and Methodologies for Surface Water (SCGR 1002-2), based on a finding of no increased water quality impact. B. Monitoring and Reporting 1. Monitoring: Tables VI-9, VI-10, VI-11 and VI-12 list the monitoring requirements for all authorized outfalls (outfalls 001 - 010, 016 - 017 and 019), including sample type and frequency.