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SECTION 4 water Quality Eualuatiou RRSC -3 - Citywide Annual Budget Line Item - Outfall Stabilization: This proposed project alternative would include identification and retrofit of storm drainage system outfalls, which are creating localized erosion and bank stability problems. 4.3.2 Development Standards to Address Water Quality Stormwater Development Standards Potential development standards were considered for addressing water quality problems as part of the 2002 City -wide basin master planning efforts. As a result, development standards for water quality were adopted City -wide in June 2006. The Stormwater Development Standards include regulations for locating, designing, constructing, and maintaining water quality facilities for new development and significant re- development. These standards apply within the city limits and to properties within the urban growth boundary (UGB) that develop and annex to the City. Eugene developed a Stormwater Management Manual (July 2006) to assist developers with the design, operations, and maintenance of approved stormwater facilities. Eugene's Stormwater Management Manual is a modified version of Portland's Stormwater Management Manual. The Portland Stormwater Management Manual was reviewed and edited for accuracy and consistency with the City of Eugene's regulatory structure and to reflect policies and the Stormwater Department Advisory Committee's recommendations for a water quality design storm (i.e. 1.4 inches for volume -based analyses, 0.22 in /hr for in -line flow -based systems and 0.13 in /hr for off -line flow -based systems), flow controls, and maintenance responsibilities for public and private facilities. The Eugene Stormwater Management Manual provides developers and design professionals with specific tools to meet the City's requirements for reducing the impacts of stormwater runoff quantity and pollution resulting from new development. The Manual is to provide guidance for developers subject to the stormwater development standards adopted by City ordinance. As an extension of stormwater development standards adoption, in September, 2008, the Eugene City Council reviewed and directed efforts to increase use of Low Impact Development practices for stormwater management through administrative adjustments, additional integration of LID practices with other initiatives, development of proposals for land use code amendments, and development of proposals for other program enhancements. Implementation of the stormwater development standards is underway, including a 2008 update to the Stormwater Management Manual, plan review and inspection of private water quality facilities, and the incorporation of water quality facilities into public capital improvement project design. Following up from 2008 City Council direction related to increasing the use of LID practices, specific administrative adjustments, incentives and other LID- related actions are being identified and prioritized for implementation. Water Quality Protected Waterways Waterway protections for addressing water quality problems were also considered as part of the 2002 City -wide basin master planning efforts. In June 2006, the City initiated a proposal for protecting waterways for water quality purposes. Under the initial (2006) proposal, nearly 90 miles of waterways were proposed for protection, including 75 -foot setback areas along each 0: 25695978 Eugene RR -SC Final Basin P1an\Master P1anTINAL 2- 2010\Master_Plan 3- 11- 10_FINAL_ Word _Version.doc 4 -34