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EC 9.6791 Stormwater Flood Control and EC 9.6792 and Stormwater Quality: The site is located within Stormwater Basin WCMN-010. Capacity deficiencies in the downstream system are identified in the City's Basin Master Plan (Willow Creek Volume VII of VII). Infiltration limiting factors on-site include poorly draining soils, depth to groundwater, and depth to bedrock. The stormwater management plan prepared by Multi/Tech Engineering Services, Inc., signed and stamped by Matthew W. Hendrick P.E., includes an extended wet pond designed to meet Flood Control and Stormwater Quality standards. Staff concurs that the proposed design is appropriate on a conceptual level, with design details to be further evaluated through the building permit process. EC 9.6793 Stormwater Flow Control (Headwaters): This standard does not apply because the proposed development is at an elevation lower than 500 feet and will not drain to a headwater stream. EC 9.6794 Stormwater Oil Control: This standard is triggered by the number of proposed parking spaces. The incorporation of lynch-type catch basins and the spill control manhole will meet oil control standards. Based on this, the standard is met. EC 9.6795 Stormwater Source Controls: Solid Waste storage facilities including dumpsters, garbage cans, and recycling areas, are subject to source control standards per EC 9.6795(2)(c). To meet these standards, solid waste storage areas are required to be covered, on a paved surface, hydraulically isolated, and connected to the private wastewater system on the site. Solid waste areas are shown on paved surfaces, and the applicant's written statement addressing EC 9.5500(14) states these areas will be covered. To ensure Stormwater Source Control standards are met, Public Works staff recommend the following condition of approval: 14) Prior to building permit issuance, the applicant shall provide evidence demonstrating compliance with EC 9.6795, more specifically, showing how solid waste areas will connect to the wastewater system and will be hydraulically isolated in accordance with applicable standards. EC 9.6796 Dedication of Stormwater Easements: No public stormwater facilities are proposed because no public stormwater facilities are proposed. EC 9.6797 Stormwater Operations and Maintenance: Compliance with these standards will be evaluated during the building permit process. With the findings, condition, and future permit requirements, staff finds that the stormwater criterion will be met. September 2020 Findings & Decision of the Planning Director Page 27 of 31 Southwest Eugene Apartments (SR 20-3 & ARB 20-2)