City of Eugene <br />Concurrent Conditional Use Permit & Adjustment Review Applications <br />January 27, 2026 <br />Page 26 of 43 <br /> <br /> <br /> <br />(2) Applicability and Exemptions. <br />(a) Except as provided in EC 9.6791(2)(b), flood control standards apply to <br />all development permit applications and land use applications. <br />(b) The standards in EC 9.6791(3) do not apply to development permit <br />applications where the proposed development will be served by a flood <br />control facility that is a manmade drainage system designed to <br />accommodate stormwater run-off generated by the stormwater basin <br />area. <br />(3) Standards. <br />(a) Stormwater flood control facilities shall be designed and constructed <br />according to adopted plans and policies, and in accordance with <br />standards in EC Chapters 6 and 7, and the stormwater flood control <br />provisions and the facility design requirements set forth in the <br />Stormwater Management Manual. <br />(b) Based on the Rational Method flow calculation, stormwater runoff from <br />the development site for the flood control design storm shall be: <br />1. Discharged into existing stormwater flood control facilities that, <br />considering all developments that have received tentative or final <br />plan approval as of the date the applicant submits a complete <br />application, have the capacity to handle the stormwater runoff; or <br />2. Retained or detained onsite; or <br />3. Discharged into a new stormwater flood control facility <br />constructed by the applicant. <br />(4) Underground Injection Control Systems. Stormwater runoff discharged in <br />underground systems is also regulated through the federal Underground <br />Injection Control (UIC) program under Part C of the Safe Drinking Water Act <br />(42 U.S.C. § 300, Chapter 6A, Subchapter XII) and Oregon Administrative <br />Rule Chapter 340, Section 044. <br /> <br />Findings: The existing site is a previously fully development site with an existing piped connection to a <br />public storm main located in West 7th Avenue. Stormwater runoff from the new impervious areas will be <br />piped to the public storm main after going through vegetated stormwater quality facilities. The site is in <br />the Bethel-Danebo basin and is not in an area identified as needing flood control. Therefore, flood control <br />standards are met without additional detention or retention on site. The proposal complies with these <br />criteria. <br /> <br />EC 9.6792 - Stormwater Quality <br />(1) Purpose. The purpose of EC 9.6792 is to reduce runoff pollution and mitigate <br />the volume, duration, time of concentration and rate of stormwater runoff <br />from development by implementing stormwater management techniques that <br />promote the use of natural and built systems for infiltration,