(c) For development proposed within the area shown on Map 9.6791(3)(c) Special <br />Stormwater Flood Control Area Map, the post -development peak flow rate shall not exceed <br />the pre -development peak flow rate for the applicable flood control design storm unless the <br />applicant submits documentation from Junction City Water Control District that the proposed <br />flow rate is acceptable. <br />Section 2. Section 9.6792 of the Eugene Code, 1971, is amended to provide as follows: <br />9.6792 Stormwater Quality. <br />(1) Purpose. The purpose of EC 9.6792 is to reduce runoff pollution and mitigate the volume, <br />duration, time of concentration and rate of stormwater runoff from impervious surface areas. <br />(2) Applicability and Exemptions. <br />(a) Except as exempt in EC 9.6792(2)(b) or (c), the standards in EC 9.6792(3) apply to land <br />use applications and development permit applications that propose new or replaced <br />impervious surfaces. <br />(b) The standards in EC 9.6792(3) do not apply to land use applications or development <br />permit applications proposing: <br />1. Construction of less than 1,000 square feet of new or replaced impervious surface <br />within a 12-month period; <br />2. Replacement of impervious surface area that does not expose more than 1,000 <br />square feet of soil (for purposes of this subsection, "soil" means: the unconsolidated <br />mineral or organic material on the immediate surface of the Earth that serves as a natural <br />medium for the growth of land plants); <br />3. Maintenance and/or repair activities on an existing structure, facility or other <br />impervious surface to prevent its decline, lapse or cessation in the use; <br />4. Construction of a single -unit dwelling or duplex on a lot or parcel that was created by <br />a land division application submitted and approved by the City between July 14, 2006, <br />and March 1, 2014, that is consistent with the approved land use application and the <br />City's stormwater quality (pollution reduction) standards in place at the time of the land <br />division application; or <br />5. Construction of new or replaced impervious surface that will be served by an existing <br />City approved stormwater quality facility that was designed and sized to treat the <br />stormwater runoff from the proposed impervious surface. <br />Ordinance -- Page 2 of 7 <br />