<br />Ordinance -- Page 6 of 10 <br />the proposed development which is otherwise consistent with all other applicable lot <br />and development standards. <br /> <br />(e) The selected stormwater quality facilities shall treat all stormwater runoff from all new <br />or replaced impervious surface areas, or an equivalent on-site area, that will result from <br />the water quality design storm except that the selected the stormwater quality facility does <br />not need to treat the stormwater runoff from new or replaced impervious surface that is <br />500 sq. feet or less and does not gravity-feed into the selected treatment facility. <br />(f) All stormwater quality facilities shall be sited, designed and constructed according to <br />the water quality provisions and the facility design requirements set forth in the Stormwater <br />Management Manual. <br /> <br />(gd) The standards in EC 9.6792(3)(a) and EC 9.6792(3)(b)2. may be adjusted pursuant <br />to EC 9.8030(24). <br /> <br /> <br /> Section 3. Section 9.6793 of the Eugene Code, 1971, is amended to provide as follows: <br /> <br />9.6793 Stormwater – Flow Control (Headwaters). <br /> <br />(1) Purpose. The purpose of EC 9.6793 is to protect waterways in the headwaters area from the <br />erosive eaffects of increases in stormwater runoff peak flow rates and volumes resulting from <br />development. <br /> <br />(2) Applicability and Exemptions. <br /> <br />(a) Except as exempt under EC 9.6793(2)(cb), the standards in EC 9.6793(3) apply to all <br />land use applications for development and development permit applications that propose <br />new or replaced impervious surfaces on sites in the headwaters area that drain directly <br />into a headwater stream or drain into a pipe that discharges into a headwater stream. that <br />are submitted after July 14, 2006 requesting approval of one or more of the following: <br /> <br />1. A cluster subdivision – tentative plan (EC 9.8055); <br /> <br />2. A conditional use (EC 9.8090 or 9.8100); <br /> <br />3. A partition – tentative plan (EC 9.8215 or 9.8220); <br /> <br />4. A planned unit development – tentative plan (EC 9.8320 or 9.8325); <br /> <br />5. Site review (EC 9.8440 or 9.8445); <br /> <br />6. A subdivision tentative plan (EC 9.8515 or 9.8520). <br /> <br />(b)Except as exempt under EC 9.6793(2)(c), the standards in EC 9.6793(3) apply to all <br />applications for development permits for development sites in a headwaters area that drain <br />Commented [DS10]: Testimony raised concern that the <br />“adjustment review” process is too onerous to obtain <br />approval of a stormwater system design, and suggests a <br />less formal design exception process. StaƯ response: <br />The Stormwater Management Manual includes suƯicient <br />ways for an applicant to design a hybrid facility without <br />the need for an adjustment review process. Only an <br />alternative to the facility types in the Stormwater <br />Management Manual needs to be proposed through an <br />adjustment review process. This is no change from the <br />current code and to current practices. <br />