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Amendment No. 3 to Installation Agreement between City of San Leandro and 02/12/2025 Climatec LLC for WPCP Efficiency Projects Page 3 of 7 ATTACHMENT A Amendment Scope of Work High Strength Waste (HSW) Receiving Facility Provide engineering and design of necessary infrastructure in order to make food processing waste reception of 5,800 gallons per day possible at Digester #4 (west of the FOG building). o Scope of Work includes: • Engineering design, consistent with Brown and Caldwell plans dated March 2022. o Scope Assumptions: • The existing FOG control panel can be reused for sending communication signals to plant SCADA system • The existing “FOG” line from Digester #4 control building to the old micro turbines can be reused o Scope of Work Excludes: • Any construction, installation or programing. Biogas to RNG (Renewable Natural Gas) System Provide engineering, design, and permitting assistance of plant infrastructure to produce Renewable Natural Gas from the current facility biogas supply (up to 200 cubic feet per minute). Scope of Work includes: • Engineering design, including design for the flare, consistent with Brown and Caldwell plans dated March 2022. • Modification of existing piping at Digester #4 to allow for future connection of biogas processing equipment • Replace biogas pipes connecting gas conditioning area to pressure relief valves • Provide one (1) new gas upgrading system consisting of: • Siloxane removal • H2S removal • Moisture removal • CO2 removal • Provide one (1) RNG compressor, including variable frequency drive, motor start panel, compressor, CNG dryer and 1-postion trailer connection hose • Bay Area Air Quality Management District permit update coordination through permit issuance Docusign Envelope ID: 6BEB24F4-5845-43B0-B263-0568B625C51E