Aquifer Storage and Recovery Program

The Stockton East Water District is implementing an aquifer storage and recovery program at the Dr. Joe Waidhofer Drinking Water Treatment Plant in Stockton, California, utilizing existing Well 74-01 to store excess drinking water in the local aquifer during periods of surplus and recover it during times of high demand. Water for recharge is sourced from the District’s diversions of the Calaveras and Stanislaus Rivers, delivered at an estimated rate of 450 gallons per minute, with potential recovery rates up to 1,500 gallons per minute. The program includes the installation of observation wells to monitor aquifer response, with one well situated within 100 feet of Well 74-01 and a second approximately 3,500 feet northeast along an on-site access road, both located on parcels identified by assessor’s numbers 101-04-023 and 101-05-003. Recovered water is directed to the South Raw Water Reservoir and treated to meet drinking water standards prior to distribution. The project is driven by sustainable water management goals and requires compliance with state and federal environmental regulations, including the Clean Water Act, CEQA guidelines, and oversight from the Central Valley Regional Water Quality Control Board and the State Water Resources Control Board’s Division of Drinking Water. No formal contract value, pricing structure, or payment terms are specified, though environmental permitting fees totaling approximately $3,868.75 have been paid. Key project contacts include Senior Engineer Manuel Verduzco and District Engineer Darrel Evensen, with no designated contracting officers, representatives, or formal FAR-based clauses established, as the initiative operates under state environmental review frameworks rather than federal procurement standards. The project is currently in the planning and permitting phase, with no defined period of performance or delivery schedule, and no solicitation or contract number beyond the internal identifier 2025070966.