Item 22 - Resolutions for Wells 27 and 28 PFAS Treatment System Funding

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Treatment Systems in the Basin subject to the provisions of this Agreement. OCWD will also fund a portion of the operation and maintenance costs of those facilities. 2.2 HAS Compounds and Reopener. The Parties recognize the necessity of and commit to a high level of coordination to expeditiously design, construct and operate HAS Treatment Systems to remove PFAS from the Basin where HAS is detected in a Producer's existing or anticipated) Water Producing Facilities at or above 80% of an applicable RL or MCL. The Parties acknowledge that additional compounds within the HAS family may become regulated during the term of this Agreement. To the extent the Treatment Systems developed under this Agreement requires modification to treat PFAS that becomes regulated after the Effective Date, the Parties will, where necessary and mutually agreed upon, amend this Agreement to provide for treatment of additional compounds in the PFAS family. 3. PLANNING. 3.1 Planning Study. OCWD has retained a consultant to prepare a "Planning Study" to evaluate the Producers' water systems, any of their Water Producing Facilities impacted by PFAS ("Impacted Wells"), and potential locations for construction of PFAS Treatment Systems for Impacted Wells. OCWD shall cause the consultant to actively consult with Producers in connection with preparation of the Planning Study. OCWD shall cause the consultant to provide a final Planning Study report to OCWD and Producers concurrently. 3.2 Pilot Study. OCWD shall perform a PFAS treatment "Pilot Study" to evaluate different treatment technologies to remove PFAS from groundwater. 3.3 Treatment Systems. OCWD shall use the results of the Planning Study and the Pilot Study to reasonably determine the type and final design of the Treatment Systems to treat PFAS contamination in the groundwater produced by Impacted Wells to levels below the RL or MCL. Development of the final design of Treatment Systems will consider 30-year lifecycle costs, including but not limited to Treatment System footprint and physical setting, relative land values, the proximity to existing water infrastructure and energy sources, operational costs and limitations, and any HAS treatment studies conducted by Producers. The Treatment Systems will be designed for a 30-year useful life. If OCWD and a Producer mutually agree, a Treatment System that can remove PFAS contamination down to non -detect concentrations, depending upon site specific circumstances, may be designed and constructed. 3.4 Enhancements/Additions to Treatment System. If Producer desires to construct additions or enhancements to the PFAS Treatment System beyond what OCWD determines is the appropriate Treatment System, then OCWD will reasonably estimate the cost of those additions or enhancements (including planning costs, design costs, capital costs and operation and maintenance ["O&M"] costs) with assistance and input from Producer(s). For OCWD-Built facilities (defined below), OCWD shall include the additions or enhancements in the design and construction of the treatment facilities upon OCWD determination of feasibility of efficiently operating the Treatment Systems with the requested additions or enhancements. Producer shall reimburse OCWD for all costs associated with the OCWD-Built addition or enhancement constructed by OCWD. For Producer Built Treatment Systems that contain additions or enhancements beyond what OCWD determines to be an appropriate Treatment System, 2629/022499*087 14979764.1 a04/17/20 -4-