An official website of the United States government.

This is not the current EPA website. To navigate to the current EPA website, please go to www.epa.gov. This website is historical material reflecting the EPA website as it existed on January 19, 2021. This website is no longer updated and links to external websites and some internal pages may not work. More information »

Water Infrastructure Finance and Innovation Act (WIFIA)

Rancho Vail Dam Seismic and Hydrologic Remediation Project

Borrower: Rancho California Water District

Location: Temecula, California

Invited WIFIA Loan Amount: $42 million
Population Served by Project: 197,000

Project Type: Drinking Water

Project Description

The Vail Dam Seismic and Hydrologic Remediation Project will construct a new straight-axis concrete dam located downstream of the existing arch dam. The current dam's spillway is insufficient to pass the Probable Maximum Flood without overtopping the dam, and the existing concrete arch dam would not resist the stresses induced by the Maximum Credible Earthquake. The purpose of this project is to replace aging infrastructure, provide flood control from a major earthquake, and provide a local water supply averaging 4,800 acre-feet per year.

You may need a PDF reader to view some of the files on this page. See EPA’s About PDF page to learn more.

Rancho (PDF)(1 pg, 265 K)