Ordinance No. 20521 - Laserfiche WebLink

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d. Ground surface slopes are greater than 10 %. 2. If selecting off -site stormwater quality management by contributing to the public off -site stormwater quality facilities, through payment of a higher stormwater system development charge adopted as part of the City's system development charge methodology, the applicant shall submit a report that demonstrates there is insufficient land area to construct an approved infiltration or filtration facility by setting forth the required size of the smallest infiltration or filtration facility needed for the development's impervious surface area and a site plan demonstrating that an approved infiltration or filtration facility cannot be located on the development site without reducing the size of the proposed development which is otherwise consistent with all other applicable lot and development standards. (e) The selected stormwater quality facilities shall treat all stormwater runoff from all new or replaced impervious surface areas, or an equivalent on- site area, that will result from the water quality design storm except that the selected the stormwater quality facility does not need to treat the stormwater runoff from new or replaced impervious surface that is 500 sq. feet or less and does not gravity -feed into the selected treatment facility. (f) All stormwater quality facilities shall be sited, designed and constructed according to the water quality provisions and the facility design requirements set forth in the Stormwater Management Manual. (g) The standards in EC 9.6792(3) may be adjusted pursuant to EC 9.8030(24). Section 6 . Subsection (3)(e) of Section 9.6796 of the Eugene Code, 1971, is amended to provide as follows: 9.6796 Dedication of Stormwater Easements (3) Standards. The applicant must dedicate public easements approved by the city over city maintained stormwater management facilities provided the city makes findings to demonstrate consistency with constitutional requirements. The conveyance of ownership or dedication of easements may be required in any of the following circumstances: (e) Where the facility will provide treatment for runoff from the public right - of -way and the City will be maintaining the facility. Section 7 . Section 9.6797 of the Eugene Code, 1971, is amended to provide as follows: 9.6797 Stormwater Operation and Maintenance (1) All stormwater facilities shall be operated and maintained in accordance with EC Chapters 6 and 7, and the Stormwater Management Manual. (2) Unless the applicant proposes private maintenance of the facility, a stormwater facility that will provide treatment for runoff from the public right -of- way shall be: Ordinance - Page 5 of 12