Item 2: Ordinance on Water Quality Overlay Zone

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contained in EC 9.6791 through 9.6795 and erosion control requirements contained in EC 9.6792 and EC 6.625 through EC 6.645 are met; c. For areas located outside the footprint of construction- related impervious surfaces: (1) Soil permeability rates and sheet-flow drainage patterns are restored to pre-construction conditions or improved from preconstruction conditions by increasing soil permeability or enhancing sheet flow patterns; and (2) Plants and vegetation are planted to the following specifications: (a) 80% of the area is covered; (b) Species planted are not Invasive, Non-Native species as defined in EC 9.0500; (c) Species consist of a balance of trees, shrubs and forbs; d. Bio-engineering methods are used to stabilize stream banks and repair areas of erosion, including but not limited to bank failure, bank sloughing, and channel incision, or the city engineer has provided written approval of alternative methods; e. Based on the city’s Water Quality Function Rating System, (see EC 9.4782), the project will result in a water quality function rating equal to or greater than previously existed; and f. For a public improvement project allowed pursuant to (f)2. or (f)3., impervious surfaces are minimized by constructing the facility or infrastructure with as little impervious surface as allowed by city standards and the Americans With Disabilities Act; (g) Authorized Enhancement and Restoration. Wetland, stream and riparian enhancement and restoration if the proposed activity is authorized: 1. Under a Mitigation Improvement Plan approved by the Oregon Department of State Lands (DSL) and, if required, by the U. S. Army Corps of Engineers (ACOE); 2. Under a wetland restoration permit or wetland enhancement permit approved by the DSL, and if required by the ACOE; or 3. By a “Finding of No Significant Impact” or a “Record of Decision” under the federal National Environmental Policy Act (NEPA) that identifies the restoration or enhancement activity as the final selected alternative; (h) Other Activities. 1. Construction and maintenance of paths with no impervious surface for pedestrian or bicycle use not to exceed 5 feet in width; 2. Construction and maintenance of facilities for monitoring water quality and gauging stream flows; 3. Construction and maintenance of publicly accessible recreational/environmental interpretative signs with a ground disturbance not to exceed 12 square feet in area; Ordinance - 8