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<br />ATTACHMENT A <br /> <br /> <br /> <br /> <br />Public Works <br /> <br /> Wastewater <br /> <br /> <br />City of Eugene <br /> 410 River Ave. <br />M <br /> Eugene, Oregon 97401 <br />EMORANDUM <br /> (541) 682-8600 <br /> (541) 682-8601 FAX <br /> www.ci.eugene.or.us <br />Date: <br />May 22, 2006 <br /> <br />To: <br />Mayor Piercy and City Council <br /> <br />From: <br />Therese Walch, Water Resources Manager (682-8647) <br /> <br />Subject: <br /> Proposed Stormwater Development Standards and the River Road – Santa Clara <br />Basin Plan <br /> <br /> <br />The purpose of this memo is to clarify the connection between the proposed stormwater <br />development standards ordinance and the stormwater basin plans, including the River Road - <br />Santa Clara Basin Plan. Information is also provided in response to concerns raised at the May <br />8, 2006 public hearing on the proposed stormwater development standards ordinance related to <br />the preservation of natural drainage systems in the River Road - Santa Clara area. <br />Stormwater Basin Planning Process <br />The earlier stormwater basin planning process was precipitated by the adoption in 1993 of the <br />Comprehensive Stormwater Management Plan (CSWMP) and the City of Eugene’s 1994 <br />NPDES permit. These actions marked a significant shift in the City’s approach to stormwater <br />management. In addition to drainage and flood control services, the City’s stormwater program <br />was expanded to include the protection and enhancement of stormwater quality and related <br />natural resources. Since the City’s previous Storm Drainage Master Plan (OTAK, 1990) was <br />developed solely for the purpose of addressing drainage and flood control issues, an update of <br />the 1990 Storm Drainage Master Plan was necessary to bring it into compliance with current <br />City policy and new regulations. The City initiated a project to develop multiple objective <br />Stormwater Basin Master Plans (Basin Plans). The objective for the new Basin Plans was to <br />develop stormwater management strategies, primarily capital projects and development <br />standards, that, along with the other activities in the stormwater program: <br />? <br />Minimize flooding associated with existing and future development conditions; <br /> <br />? <br />Prevent and/or reduce stormwater runoff pollution associated with new development and <br /> <br />existing development; <br />? <br />Protect and enhance stormwater-related natural resources for their beneficial stormwater <br /> <br />functions. <br />? <br />Maximize cost-effectiveness through coordination with other City programs. <br /> <br /> <br />The basin planning process included a comparison, in terms of feasibility and cost-effectiveness <br />of two options for addressing predicted flooding and water quality problems from future <br />development: public capital facilities (capital projects) vs. private on-site controls (development <br />standards). To address predicted flooding problems from future development, the conclusion for <br /> <br />