5E Consent - Laserfiche WebLink

Home

File Number: 25-135 habitat along the San Francisco Bay Trail for educational opportunities and demonstrate cost-effective nature-based solutions for contaminant removal. Removing nitrogen from water is a two-step process. In the first step, bacteria combine the inorganic nitrogen with oxygen. In the second step, different bacteria use the oxygen and release the nitrogen as nitrogen gas. Most wastewater treatment plants accomplish this in the treatment process. The Treatment Wetland project will use advanced Membrane Activated Biofilm Reactors (MABR) technology to do the first step and the second step will occur by passing the water through a wetland that will be constructed in an underutilized treatment basin. The project has been supported by the following grants: ·$538,926, April 2018: Measure AA grant from the San Francisco Bay Restoration Authority (SFBRA) to plan, design and permit a multi-benefit Treatment Wetland ·$3,734,489, July 2024: Measure AA grant from the San Francisco Bay Restoration Authority (SFBRA) for construction of the Treatment Wetland ·$2,975,302, July 2024: Grant from the US Environmental Protection Agency through the San Francisco Bay Water Quality Improvement Fund for construction of the Treatment Wetland Analysis After considering multiple options, the design engineers recommended a modular product that can be installed in the space available adjacent to the basin. The units come in a shipping container and will be installed on concrete pads. These modular units reduce the footprint and the impact since it doesn’t require retrofits to the WPCP. The design engineers recommended a product from Fluence because it is the only vendor that provides a modular MABR system. These units are in use around the world and are typically used as part of a small treatment system. The design of the system calls for procuring 15 of these modular units. Because this is a unique use of this product, both Fluence and the design engineers recommend a pilot test to ensure it will produce the expected results. The pilot test will consist of leasing one of the units and testing it in the treatment plant. If the pilot is successful, the product can be reused in the full treatment wetland implementation, which is scheduled for completion in 2026. If the pilot is unsuccessful, Fluence will remove the unit. Because this will allow the City to test the system at a smaller scale, it lowers the risk for the City and increases the chance that the Treatment Wetland project will go smoothly as it will allow the design engineers to make any necessary changes. The lease agreement includes the delivery, installation, and training of staff to operate the system. The cost of the rental is $15,000 per month as well as a $15,000 deposit. Therefore staff recommends a not to exceed amount of $195,000 to encompass up to 12 months. Previous Actions October 15, 2018 - Resolution No. 2018-30, Resolution of the City of San Leandro City Council to Page 2 City of San Leandro Printed on 9/4/2025