Mendota Pool Group 20-Year Exchange Program

2 Documents in Project


SCH Number
Lead Agency
Westlands Water District
Document Title
Mendota Pool Group 20-Year Exchange Program
Document Type
JD - Joint Document

Document Description
Under the proposed project, the U.S. Bureau of Reclamation would issue a series of exchange agreements with the Mendota Pool Group over a 20-year period to allow up to 25,000 acre-feet per year of Central Valley Project water to be conveyed via the San Luis Canal to MPG farmlands within the Westlands Water District. In exchange, MPG would introduce an equivalent amount of suitable groundwater to the Mendota Pool (plus 5% "leave-in" quantity of water) that would be used by Reclamation to satisfy CVP contractual obligations to other users of the Mendota Pool. The exchange of water would be subject to annual agreements, management mechanisms (design constraints), a monitoring and reporting program, new groundwater recharge components, and a Warren Act contract with Reclamation to provide MPG with storage in San Luis Reservoir, dependent on available capacity. Under a No Project Alternative, the 25,000 AFY of CVP water to be exchanged with MPG under the proposed project would instead be delivered via the Delta-Mendota Canal to the Mendota Pool to satisfy existing contractual obligations. MPG would disband and groundwater pumping would not be subject to the management and reporting of the proposed project. A second alternative (alternative 2) is also being evaluated that includes all actions of the proposed project, but would also construct, maintain, and operate an 85-acre groundwater recharge basin west of the Mendota Pool. The River Ranch Recharge Basin under this alternative would function solely for the purpose of recharging the local groundwater aquifer and would not be used as a water bank.

Contact Information
David Vang
Westlands Water District
3130 N. Fresno Street
Fresno, CA 93703-6056

(559) 241-6202


36°46'31.8"N 120°21'18.7"W
Cross Streets
Bass Ave/Columbia Rd
Total Acres
Parcel #
State Highways
CA SR 33, 180
William Robert Johnston
McCabe & Washington E
San Joaquin River, Mendota Canal Pool, Fresno Slough

Notice of Completion

Review Period Start
Review Period End
Development Type
Water Facilities (Recharge basin Type, 43,000afy MGD) Other (continue groundwater exchange program (25,000AFY))
Local Action
Other Action Other Action: groundwater exchange
Project Issues
Cumulative Effects Landuse Wetland/Riparian Water Supply Water Quality Traffic/Circulation Soil Erosion/Compaction/Grading Noise Economics/Jobs Biological Resources Archaeologic-Historic Air Quality Agricultural Land
Reviewing Agencies
Department of Fish and Wildlife, Region 4 California Department of Parks and Recreation California Highway Patrol Caltrans, District 6 Caltrans, Division of Aeronautics Central Valley Flood Protection Board Department of Conservation Department of Water Resources Native American Heritage Commission Office of Historic Preservation Regional Water Quality Control Bd., Region 5 (Fresno) Resources Agency State Lands Commission State Water Resources Control Board, Division of Drinking Water State Water Resources Control Board, Divison of Financial Assistance
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