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COLORADO DEPARTMEM OF PUBLIC HEALT/~ AND ENVIRONMEhR; Water Quality Comrol Division Rationale -Page 14, Permit No. CO-0000221 d. Com reheuive Facili lu etxioiu: The permittee will be required to make a thorough iupeaion ojtheir stormwater mawgetnent rystem, lean twice per year (in the spring and jall). These inspection must be~ documented and summarized in t e annual report. (See Pan I.D.2.e. and f. of the permit.) e. Annual Report: The permitree wP l be required to submit an annual report, covering January 1 through December 3] ojeach year, on th overall compliance with the SWMP. 5. Economic Reasonableness Evaluatio Section 15-8-503(8,1 of the revised (June 1985) Colorado Water Oualir! Control Act required the Division to "determine whether or not any or all of the water quality standard based efJluem limitation are reasonably re aced to the economic, environmental, public health and energy imparts tp the public and affected person, and are in furtherance of the ,policies set forth in section 25-8-192 and 25-8-104. " The Regulation for the State Discha ge Permit System, 6..1.0, further define this requiremem under 6.12.0 and state: "Where economic, environme al, public health ana' energy impacts to the public and affected person lutve been conidered in the classificatio and standards setting process, permits written to meet the standards ma;~ be presumed to have taken into canside , Lion economic jactors unless: a) Anew permit is issued where the discharge was not in ezistence at the time of the classification and standards rulemddng, or b) In the case of a continuing discharge, additional injornuttion or jactors have emerged that were not anticipated or canidered at the time of the classification and standards rulemaking. " Furthermore, this is not a new disch¢rger and no new information has been presented regarding the classiftca!ion and standards. Therefore, the water grtaliry standard-based effluent limitation of this permit are determined 'o be reasonably related to the economic, nvironmental, public health and energy impacts to the public and affected person and are in furtherance of rh~ policies set forth in :~ectiou 25-8-102 and 104. /f the permittee disagrees ith this finding, pursuant to 6.12.0(2) (b) the permittee should .submit all pertinent information ro the Division dur r~ public notice period. B. Monitoring 1. EfRuent Mortitorine: Effluent mot permit jot locations of monitoring Table V/-9 - Parameter will be required ~zs shown in Tables VI-9 through VI-Il. Refer to the Jor Outfalls 002, 003, 005•, 006, Ol0 and Oll" Frequency k Flow, MGD Wee ly lutantaneous or Continuous TSS, mg/f Mon hh~ Grab Total Iron, mg/f Mon hlv Grab Settleable Solids, mf/f Mo hPo Crab Oil and Grease, mg/f Wee ly Visual a/ pH, s.u. Wee ll' /n-situ TDS, mg/f Quar 7erly Grab Whole Effluent Toxicirv, 002 and 003 An all~• Grab 005, 010 and 011 ~ua~terly Grab