HAYWARD, CALIF. — The City of Hayward has unveiled a plan for major improvements at its Water Pollution Control Facility.
The project will accommodate population grown, rehabilitate aging infrastructure and improve the quality of purified water released to San Francisco Bay, stated a release.
The facility, originally constructed in 1952, treats an average of 11.3 million gallons per day of wastewater before it is pumped to a facility operated by the East Bay Dischargers Authority where it is dechlorinated and discharged into the bay via a deep-water outfall.
Modifications are planned at the facility to meet anticipated nutrient discharge regulations and accommodate increased wastewater loads as Hayward’s population is forecasted to grow by approximately 33 per cent from 2015 to 2050, according to the Association of Bay Area Governments.
The city has enlisted Brown and Caldwell for preliminary and final design services for the improvements. As prime consultant, the firm will develop plans to incorporate biological nutrient removal, primarily nitrogen, in the facility’s treatment process to meet nutrient limits for treated effluent discharges to the bay as regulated by the San Francisco Bay Regional Water Quality Control Board.
Improvements could include process intensification using new technologies to avoid building new treatment tanks, depending on future needs and evolving regulations.
Brown and Caldwell will also prepare a biosolids and renewable energy master plan that considers the impact of the nutrient upgrades on the existing solids handling capacity at the plant and sustainable management of the useful organic material produced in the treatment process. The plan will include resource recovery and beneficial reuse recommendations in alignment with the city’s sustainability goals.
In addition, the plan will provide a framework to help Hayward comply with Senate Bill 1383, which requires reducing California’s organic waste sent to solid waste landfills by 75 per cent by 2025.
“We commend the city for its forward planning and commitment to environmental stewardship,” said Brown and Caldwell principal-in-charge Fran Burlingham in a statement. “Our team is honored to help deliver the plant of the future and position Hayward for continued success.”
Final design of the improvements is scheduled for summer 2024 with construction anticipated for completion by spring 2028.
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