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Ordinance Exhibit D DOWNTOWN RIVERFRONT LAND USE COMPONENTS CA 19-1, RA 19-1, Z 19-5, WG 19-3, ST 19-3, and SDR 19-2 April 19, 2019 b. Bedrock is less than 5 feet below the ground surface; C. Groundwater elevations are less than 6 feet; or, d. Ground surface slopes are greater than 10%. 3. 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, shall include 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. 4. Shall design the selected stormwater quality facilities to 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, in combination with any agreement with the City for off-site treatment of some stormwater runoff from the proposed development site. The selected 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. 5. Shall site, design and construct all stormwater quality facilities according to the water quality provisions and the facility design requirements set forth in the Stormwater Management Manual. 6. The standards in EC 9.3155(17)(c) may be adjusted based on the criteria set out at EC 9.8030(24)(a) and (b). The proposed tentative subdivision is a land use application and does not include any associated development permits. Therefore, this standard does not apply. Future development of buildings and other site improvements on individual lots created by the subdivision will need to conform to the standard at the time of permits. EC 9.6793 Stormwater Flow Control (Headwaters). The standards set forth in EC 9.6793(3) protect headwaters streams from the erosive effects of increased stormwater runoff from development. The standards for Stormwater Flow Control apply to all land use applications for development sites within a headwaters stream or pipe that discharges into a headwater steam. The development site is not located in the headwater areas. It does not discharge stormwater to a head waters steam or a pipe that discharges to a headwaters stream. Therefore, the standards set forth in EC 9.6793 are not applicable to this application. City of Eugene FINAL SUBMITTAL 78