The Davis-Dolwig Act was established by Water Code §11900-11925 for funding the enhancement of fish and wildlife and recreation in connection with State Water Project facilities. DWR will use Proposition 84 Bond proceeds to fund the state’s allocable share of Recreation and Fish and Wildlife Enhancement (RFWE) costs associated with facility improvements included in the Perris Dam Remediation Program (PDRP), a capitalized construction program. The balance of PDRP funding allocable to power and water supply is covered by Water Bonds sold as part of the State Water Resources Development System. The PDRP projects include the development, rehabilitation, land acquisition, and restoration of Perris Dam to meet current seismic design criteria and for improvements to further protect life and property downstream of Perris Dam. Upon PDRP completion, Lake Perris will be restored to full operational capacity which will result in full public access to recreation, and fish and wildlife enhancements at the Lake Perris State Recreation Area. The Perris Dam Remediation Program (PDRP) consists of multiple projects. The first project is the Perris Dam Remediation Project and involves excavating a portion of the downstream toe of the dam, improving the dam’s foundation with cement-deep soil-mixing to treat the liquefiable soils beneath the dam foundation, replacing the excavated foundation material with a compacted engineered fill, and then constructing a stability berm along the downstream toe of the dam. The second project is the Perris Dam Remediation Environmental & Right of Way Project and involves purchasing program mitigation property, conducting required restoration on newly acquired mitigation property, coordinating tasks assigned to the environmental services contractor, and filing and obtaining permits required for construction. The purchasing of land in the Perris Dam Remediation Environmental & Right of Way Project qualifies the project as a capital expenditure project. The Perris Dam Remediation Environmental & Right of Way Project also provides monitoring during construction as required by permits and the Mitigation and Monitoring Reporting Program.
The PDRP projects are based on The Department of Water Resources (DWR) evaluating the most feasible options to address the seismic concerns at Perris Dam; furthermore, the projects are endorsed by an independent consulting board and the state’s Division of Safety of Dams, and supported by the Metropolitan Water District of Southern California (MWDSC) the principal recipient and user of water from Lake Perris. All PDRP projects require compliance with the California Environmental Quality Act (CEQA) and must appropriately mitigate for any project impacts by implementing best management practices, providing replacement habitat or threatened or endangered species, and be mindful of California’s greenhouse gas emission reduction goals. These two PDRP projects are consistent with provisions of DWR’s Strategic Planning Goals, specifically Planning Goal #2 to plan, design, construct, operate, and maintain the State Water Project to achieve maximum flexibility, safety, and reliability.