2016-097 Ordinance - Laserfiche WebLink

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EXHIBIT A: EXISTING CHAPTER 928 66R-13 Post Construction Storm Water Management Regulations 928.09 2. Side slopes between the safety bench and the aquatic bench shall not be steeper than 3:1 (3 feet horizontal for every 1 foot vertical). 3. An aquatic bench that extends inward from the shoreline far enough to ensure public safety and has a maximum depth of 15 inches below the normal water surface elevations. The aquatic bench may be landscaped to prevent access to the deeper water pool. The aquatic bench may also be incorporated into the Post -Construction Water Quality Plan. 4. Side slopes beyond the aquatic bench and below the permanent water level shall not be steeper than 2:1 (2 feet horizontal for every 1 foot vertical). 5. The contours of the pond will be designed and managed to eliminate drop-offs and other hazards. Side slopes getting to the pond shall not exceed 3:1 and shall terminate on a safety bench. (9) Water quality basin. If a Water Quality Basin is needed and can not be incorporated into an existing or planned Detention or Retention Basin then a separate Water Quality Basin will need to be planned, designed, constructed and maintained into perpetuity. (10) Water Quality Basins will not be constructed in any permanent or intermittent stream channel. (I I) Flexibility. These standards are general guidelines and shall not limit the right of the City of North Olmsted Engineer to impose at any time additional and/or more stringent requirements nor shall the standards limit the right of the City of North Olmsted Engineer to waive, in writing, individual requirements. If the City of North Olmsted Engineer waives, in writing, individual requirements the owner will provide the City of North Olmsted Engineer with the information and documentation required to assure Ohio EPA that the waived requirement will not degrade water quality. (c) Redevelopment Projects: For development projects (i.e., developments on previously developed property), post -construction practices shall either ensure a 20 percent net reduction of the site impervious area, provide for treatment of at least 20 percent of the WQv, or a combination of the two. A one-for-one credit towards the 20 percent reduction of impervious area can be obtained through the use of pervious pavement and/or green roofs. Where projects are a combination of new development and redevelopment the total WQv that must be treated shall be calculated by a weighted average based on acreage, with the new development at 100 percent WQv and redevelopment at 20 percent WQv. (Ord. 2012-27. Passed 10-2-12.) 928.09 APPLICATION PROCEDURES FOR POST -CONSTRUCTION WATER QUALITY CONTROL PLANS. (a) This plan will be combined with the Soil Erosion and Sediment Control, Storm Water Management, Riparian Setback and Wetland Setback Plans that have also been developed for the site.