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?--,, CITY OF NORTH OLMSTED ORDINANCE NO. 2006 -123 BY: Mayor O'Grady AN ORDINANCE AMENDING SECTION 927.07 OF CHAPTER 927 (STORM WATER MANAGEMENT AND URBAN SEDIMENT POLLUTION ABATEMENT SYSTEMS) OF THE STREETS, UTILITIES AND PUBLIC SERVICES CODE, IN ORDER TO ALLOW OVERLAND FLOW ON NON- RESIDENTIAL PROPERTIES FROM STORM WATER DETENTION OR RETENTION SYSTEMS, AND DECLARING AN EMERGENCY. WHEREAS, it is the recommendation of the City Engineering Department that Section 927.07 of Chapter 927 (Storm Water Management and Urban Sediment Pollution Abatement Systems) of the Streets, Utilities and Public Services Code be amended in order to allow overland flow on non-residential properties from storm water detention or retention systems; WHEREAS, it is the desire of this Council, acting upon the recommendation of the c:ity Engineering Department, to accordingly amend the said section 927.07; NOW THEREFORE, BE IT ORDAINED BY THE COUNCIL OF THE CITY OF NORTH OLMSTED, CUYAHOGA COUNTY, AND STATE OF OHIO: SECTION 1: That Section 927.07 of Chapter 927 (Storm Water Management and Urban Sediment Pollution Abatement Systems) of the Streets, Utilities and Public Services Code, which presently reads as follows: 927.07 STORMWATER STORAGE STANDARDS. Stormwater storage facilities shall be either underground storage facilities, dry or wet ponds or a combination thereof as approved by the City Engineer. Wet ponds (ponds that are designed to retain stormwater to a certain depth) shall be enclosed by a fence in accordance with Chapter 1345. (a) All materials and components used for the construction of a stormwater storage facility shall conform to the latest version of the UNIFORM STANDARDS FOR SEWERAC=JE IMPROVEMENTS or other approved standards and, where necessary, shall be designed to support a standard H-20 wheel load if the facility is located under a roadway, drive or parking area. Corrugated metal pipe shall have annular ends with matching bands, gasket joints, and watertight seams. All plate bulkheads over 24" in diameter shall be reinforced with external braces and stiffeners. Corrugated metal pipe shall be galvanized or aluminized. Reinforced concrete pipe used for storage facilities shall have premium joints and shall have endwalls or bulkheads designed to resist anticipated loads. Access manholes with access steps shall be provided at each end of an underground storage facility and at intermediate points, if deemed necessary by the City Engineer. The invert elevation of the storage facility outlet and the restrictor pipe shall be aligned in such a manner to eliminate the creation of a sump within the storage facility. Pipe installation methods and bedding materials shall conform to those recommended in the IJNIFORM STANDARDS FOR SEWERAGE IMPROVEMENTS.