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COLOR.dDO DEP;IRT;LlErVT OF PUBLIC FIE~ILTFI A,VD ENL'IRONdIE:VT. Wurer Qr«Airy Coruro! Dn•rsrort <br />Ranona(e -Amendment rVo. 1. Pa;e IQ Permit No. CO-tN)00221 <br />• C. PF.KtYIIT CFIANGES <br />;1~ a resttft of this amendment. pages 2. 3. 5, 7, 8. 9. 10. 11, l4, !~, 28 tFrgure 3) and 29 (Figure 4) are antenderl <br />ALso, page 29a (Figure 5) is added to the permit. <br />Jon C. Kubir <br />June 1. 1999 <br />VII. RL• FERENCES <br />A. CO Dept. of Public Health and Environment, Water Quality Control Corronission. Basic Standards and <br />,blerirodolagies jot Surjnce LVater (5 CCR 1002-3!). Denver: CDPHE. ns revised //11/99. <br />B. CO Dept. of Public Health and Environment, /Valet Quality Control Commisston. Regulations jot Ef went <br />Lintirarions (5 CCR 1002-62). Denver: CDPHE, as revised /1/9/98. <br />C. CO Dept. of Public Health and E~tviron»tent, Water Quality Control Commission. Colorado Discharge Permit <br />Svstem Regulations (5 CCR 1002-61). Denver.' CDPHE, as revised 3/9/99. <br />D. U. S. Government, Office of the Federal Register, National Archives and Records Administration. Code oJFederal <br />Regulations (Pan 434). Washington: 1997. <br />VIII. PUBL/C NOTICE COrY1b1ENTS <br />The permittee submitted comments: <br />• /. They requested a change in the legal contact person and a change in the rnai[ing address jot the facility contact. <br />These chnnges are being made. <br />2. The pennittee requested elaboration on the monitoring history described in section VI. B.1. regarding oil and grease. <br />T/tis is being added. <br />3. The permirtee stated that access jot the new sites (otrrfalls 012-017) is difficult. They are installing remote <br />monitoring equipment at these outfalls to ease monitoring far flow and pH. They requested that the oii and grease <br />frequency 6e reduced to monthly. As stated earlier in this rationale, no oil/grease sheen Itas ever been observed nt <br />nrty of their ourfalLr that receive only surface nrnoff. Additionally, they will install oil booms at these o[rtfalls jot <br />added security. On this basis, the monitoring frequency for oil and grease at these outfalls will be rnontitly. <br />4. The permirree asked Char [he previous winter monitoring exemption be extended nvo months. As modified by [his <br />amendment, the exemption is not limited by months; it is based on weather and access catdi[ions. This will address <br />the pennittee's concerns as stated in the draft amendment. <br />5. The pennittee noted tltar the arnendmenr included requirements for otttfa/l 007 in Pan I.A.4. of rite permit. This <br />orrtfnll was deleted some rime ago (prior to the most recent permit renewal) bur was inadvertently lefr in the permit. <br />!t will be removed now. Also, the permittee noted that in nvo places, the permit refers to copies of WET-related <br />information being submitted to EPA as attachments to the discharge monitoring repons (DMRs). Since D~ti1Rs are <br />no longer required to be submitted ro EPA, tJtese references will be deleted. <br />6. The perntit previously waived WET testing jot ourfalls 004 and 008 for the first calendar quarters. This waiver is <br />being carried over via this amendment. <br />No other parry submitted comments. The amendment will be modified ns srnted in the ahove paragraphs. <br />Ion C. Kubic <br />July 27, /999 <br /> <br />