San Luis Canal (California Aqueduct Pools 20 and 21) Liner Raise Project

The project involves raising the concrete liner of Pools 20 and 21 along the California Aqueduct between Milepost 158.7 and Milepost 170.3 to ensure continued reliable water delivery to public water agencies, enhance operational flexibility, and improve safety. Work will occur in Fresno and Kings Counties near Huron, California, with construction scheduled to begin in 2027 and last approximately nine months. Activities include drainage installation, earthwork, and concrete placement along the aqueduct embankments, with stringent environmental controls to minimize impacts, such as dust suppression, erosion prevention, wildlife protection, and restrictions on nighttime work near sensitive habitats. All construction must comply with the California Environmental Quality Act, California Endangered Species Act, U.S. Army Corps of Engineers wetland delineation standards, and San Joaquin Valley Air Pollution Control District emissions guidelines. The California Department of Water Resources is the lead agency and contracting authority, with Marea Bell serving as the primary point of contact for environmental coordination. The project requires extensive environmental documentation, including biological, cultural, and tribal consultation reports, as well as air quality and greenhouse gas emissions analyses. While no formal contract value is specified, cost estimates are referenced across multiple years including $8.7 million in 2027 and $4.4 million in 2028, though these lack formal contract line identification. The place of performance is clearly defined at the aqueduct site with access via Gale and Quail Avenues, and inspections will be conducted on-site by DWR. Although the solicitation is listed as a forecast and lacks standardized federal acquisition clauses, payment, invoicing methods, accounting codes, or evaluation factors, the project adheres to state regulatory frameworks and requires coordination with tribal entities such as the Santa Rosa Rancheria Tachi Yokut Tribe. Proposals must be submitted by mail or email by the extended deadline of December 17, 2025, with electronic formats preferred and hard copies optionally provided.