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COLORADO DEPARTMENT OF PUBLIC HEALTH AND ENVIRONMENT, Water Quality Comrol Division Ratiowle -Page 14, Permit No. CO-0000221 d. Comorehensive Facility lnsoections: The permittee will be required to make a thorough inspection of their stormwater managemem system, at least twice per year (in the spring and jail). These inspections must be~ documemed and summarized in tht annual report. (See Parr /.D.2.e. and f. ojthe permit.) Anrwa! Reoon: The permittee will be required to submit an annual report, covering January I through December 31 ojeach year, on the overall compliance with the SWMP. 5. Economic Reasonabfeness Evaluation: Section 25-8-503(8) of the revised (June 1985) Colorado Water Oualirv Controf Atr 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 Stale Discharge Permit System, 6.1.0, funkier define this requiremem under 6.12.0 and state: "Where economic. environmental, public health and energy impacts to the public and affected persons have been 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) Anew permit is issued where the discharge was not in existence at the time of the classification and standards rufemal~ng, ar 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 rulemal~ng. " Furthermore, this is nor a new discharger and no new information has been presented regarding the classifications and standards. Therefore, the water gttalin• standard-based efjluem limitations of this permit are determined to be reasonably related to the economic, environmemal, public health and energy impacts to the public and affected persons and are in furtherance of the policies set forth in Sections 25-8-101 and 104. /f the permittee disagree~h this finding, pursuant to 6.12.0(2)(b) the permitree should submit al! pertinent information to the Division dur, public notice period. B. Monitoring Effluent Monitorine: Efjiuent monitoring will be required as shown in Tables VI-9 Through VI-Il. Refer !o the permit for locations of monitoring points. Ta61e V!-9 -Monitoring Requirements for Outjalis 002, 003, 005•, 006, 010 and OII ^ Parameter Measurement Frequency Sample Type Flow, MCD Weekly Instantaneous or Continuous TSS, mg/f Momhl} Grab Total Iron, mg/f Monthly Grab Senleable Solids, mf/P Monthly Grab Oil and Grease, mg/P Weekly Visual a/ pH, s. u. Weekly !n-situ TDS, mg/P Quarterly Grab Whole Effluent Toxiciq~, Acute Outfalls 002 and 003 Annually Grab • Ourjalls 005, 010 and 011 Quarterly Grab