Water Supply Assessment for the Westside Annexation and Specific Plan Project

The Water Supply Assessment for the Westside Annexation and Specific Plan Project is a regulatory compliance effort mandated by California Water Code Sections 10910 and 10912 and Senate Bill 610 to evaluate whether Los Angeles County Waterworks District No. 40 has sufficient water supplies to support the proposed development of approximately 7,153 acres in the unincorporated Antelope Valley area, planned for 38.5 million square feet of industrial use. The assessment analyzes projected water demand over a 20-year horizon under normal, single-dry, and multiple-dry year scenarios, confirming that existing and planned water sources—including imported water from the Antelope Valley Eastern Kern (AVEK) and the State Water Project, groundwater production rights, recycled water, and return flows—are adequate to meet both the new development needs and the District’s current and future water obligations. The evaluation includes five years of historical and projected groundwater pumping data, identification of water rights and supply contracts, and compliance with state environmental review procedures under CEQA and Department of Water Resources groundwater basin characterization guidelines. The assessment is prepared by Michael Baker International under the oversight of Los Angeles County Public Works, with final approval authority resting with the Los Angeles County Board of Supervisors and District 40. While the document outlines specific hydrologic and legal requirements—such as Replacement Water Assessment payments, carry-over water rights limitations, and restrictions on water right transfers—it does not function as a federal procurement contract and contains no associated pricing structures, CLINs, FAR clauses, or acquisition-related provisions. No contract value, invoicing method, payment office details, or federal accounting codes are identified, and there is no formal contracting officer, COR, or COTR designated. The process is governed by judicial groundwater adjudication procedures, with submissions required through the Court’s e-filing portal or physical service to designated municipal offices, and key deliverables are reviewed for compliance with state water laws rather than evaluated for competitive award. Performance obligations are tied to the Antelope Valley Basin, and the Rampdown Period, beginning the January following judgment entry, spans seven years, though no specific project completion date is provided. The project remains subject to regulatory approvals and procedural triggers tied to water rights, but no federal contract administration or logistical requirements are applicable.