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PUBLIC WORKS STORMWATER POLICY TEAM <br /> AGENDA ITEM SUMMARY °''r``' ~~~r a~ <br /> Agenda Topic: Water Quality Protected Waterways <br /> Results of Parcel/Corridor Impact Evaluation & Options for Proceeding <br /> Meeting Date: April 4, 2006 Staff Contact: Therese Walch <br /> Lead Division: Wastewater Contact Telephone Number: 682-8647. <br /> I. PURPOSE <br /> The purpose of this agenda topic is to present the results of the parceUcorridor impact evaluation of water <br /> quality protected waterways, and a summary of the final Stormwater Management team's <br /> recommendations related to: criteria, map, ordinance, enforcement strategy, and financial impacts. The <br /> Stonnwater Policy team is being asked to review this information, consider options for proceeding, and <br /> decide on the appropriate path forward. A draft Public Outreach Plan has also been developed for Policy <br /> team review and direction. <br /> II. POLICY TEAM DIRECTION <br /> Preliminary water quality protected waterways were identified on the Water Quality Protected Waterways <br /> by Protection Criteria map, provided with the March 8, 2005 Stormwater Policy team memo. The <br /> waterways identified for protection on the map met the set of water quality-related criteria provided in the <br /> March 8, 2005 SWPT memo (i.e. 303(d) waterway, or direct tributary to a 303(d) waterway, or headwater <br /> stream, excluding roadside ditches). Proposed protection measures for waterways on the map based upon <br /> the Center for Watershed Protections' Site Planning for Urban Stream Protection (December 1995) were <br /> presented to the SWPT in November 2004 and include athree-zone buffer area totaling 75 feet each side <br /> of a waterway. Proposed criteria, map, enforcement strategy, high-level ordinance provisions and <br /> financial impacts have been discussed previously with the Stormwater Policy team from November 2003 <br /> to July 2005. <br /> The most recent Policy team direction on the topic of water quality protected waterways was provided in <br /> March 2005, when staff was directed to: <br /> 1. Evaluate the existing level of impact to these waterways, to determine whether or not there was <br /> adequate water quality function to protect; and <br /> 2. Evaluate the feasibility of applying buffers as proposed given the degree of impact to these <br /> waterways, and <br /> 3. Determine the impact to public lands versus private lands. <br /> The Policy team asked that the evaluation results be reviewed by the Management team and the Policy <br /> team prior to beginning any public outreach. <br /> III. PARCEL/CORRIDOR IMPACT EVALUATION <br /> <br /> In response to the March 2005 Policy team direction, the existing level of impact and feasibility of <br /> applying buffers to water quality waterways was evaluated. In addition to providing information about <br /> <br /> impact and feasibility, staff's approach considered that the evaluation may also be used to inform some <br /> <br /> 3/28/06 1 <br /> <br />