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.,;'„,• City of Lakewood, Ohio Integrated Wet Weather Improvement Plan I Phase 2 CHAPTER 10— LAKEWOOD'S INTEGRATED WET WEATHER IMPROVEMENT PLAN Based on the investigations summarized and reported in the 2019 Phase 2 IWWIP report, the City of Lakewood adopts this Integrated Wet Weather Improvement Plan and schedule. This IWWIP will achieve compliance with the Clean Water Act and Ohio law. This IWWIP complies with all requirements of 33 USC §1412(s) and EPA's June 2012 Integrated Municipal Stormwater and Wastewater Planning Approach Framework. PRIORITIES AND PRINCIPLES To achieve the environmental and public health goals of the Clean Water Act, Ohio law and the city's Community Vision, the City of Lakewood adopts these priorities and principles to guide the implementation of the IWWIP: 1. Lakewood is committed to sustained sewer system improvement for the betterment of water resources, human health and the protection of economic vitality of the city. The city's IWWIP priority is to reduce the discharge of pollutants to receiving waters. General stormwater management and general maintenance and operation will follow existing permits and plans. Control of Rocky River pollutant discharge via CSO 052 is prioritized higher than other overflows due to pollutant load, recreational use, and opportunity for significant cost - effective measures on city -owned property. Control of Lake Erie discharges are prioritized based on relative mass of pollutant loading. 2. Capital projects should achieve the greatest water quality and public health improve- ment for the dollars spent. Upgrades to the collection system, especially the modernization of over -under sewers, should be integrated with other infrastructure work, such as street re- pairs and water line renewal, in order to maximize cost efficiencies and minimize disruption. 3. Basement backups are the worst water and sewer related outcome and reducing risk of backups is a priority. Lakewood will not undertake any action under this IWWIP that knowingly increases the risk of basement backups during the normal level of service condi- tions. Lakewood will continue system monitoring and iterative modeling so that all im- provements under this plan, including major capital projects as well as routine manhole sepa- ration and invert plate replacements, are documented and incorporated into ongoing analysis so that risk of backups is minimized. I