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City of San Leandro <br />City Council <br />Meeting Date: April 7, 2025 <br />Agenda Number: 5.e. <br />Agenda Section: CONSENT CALENDAR <br />File Number: 25-135 <br />File Type: Staff Report <br />Adopt a Resolution to Approve and Authorize the City Manager to Execute a Lease Agreement with <br />Fluence Corporation for the Pilot Testing of a Membrane Aerated Biofilm Reactor (MABR) System for an <br />Amount Not to Exceed $195,000 <br /> <br />COUNCIL PRIORITY <br />·Infrastructure <br /> <br />SUMMARY <br />The City of San Leandro’s Water Pollution Control Plant (WPCP) plans to repurpose an <br />underutilized 6.9-acre wastewater retention pond on site into a multi-benefit treatment wetland. As <br />part of building this nature-based treatment wetland, effluent from the Plant will need to go through <br />a nitrification system before release to the pond. The system design calls for installing 15 <br />Membrane Aerated Bio Reactor (MABR) units. Because this is an innovative solution, the design <br />engineers recommend procuring one unit as a pilot test to ensure it will function as expected. <br /> <br /> <br />RECOMMENDATIONS <br />Staff recommends that the City Council approve and authorize the City Manager to execute an <br />agreement for the rental of the MABR system for up to a 12-month pilot testing period. This will <br />allow the City to test the product prior to purchasing. The lease agreement allows the City to <br />terminate the agreement if the effluent produced by the system does not meet expected results. <br />This reduces the risk for the City prior to purchasing any equipment. <br /> <br />BACKGROUND <br />The City, along with other Bay Area treatment plants, will soon be required by the State Water <br />Resources Control Board to reduce approximately 50% of the nitrogen in water discharged to <br />San Francisco Bay. This is necessary to prevent overgrowth of harmful algae, which can cause <br />fish kills. This Treatment Wetland project will be the first step in accomplishing this goal and is <br />one of the first in the Bay Area to do so using a nature-based solution that treats the water and <br />provides additional educational and habitat benefits. <br /> <br />The purpose of the Treatment Wetland project is to remove nitrogen and other contaminants from <br />approximately 20% of the WPCP’s discharge water. In addition, the project will enhance wetland <br />Page 1 City of San Leandro Printed on 9/4/2025