Perris Dam Foundation Study: Proposed Phase IV Geologic Exploration


SCH Number
Lead Agency
Water Resources, Department of (California Department of Water Resources)
Document Title
Perris Dam Foundation Study: Proposed Phase IV Geologic Exploration
Document Type
NOE - Notice of Exemption

Document Description
Since October 1996, several phases of geologic exploration drilling have been performed at Perks Dam to help evaluate the existing foundation conditions. Approximately 33 exploration holes will be drilled through the dam embankment and extend 50 feet into the alluvial foundation. Standard Penetration Tests will be performed and soil samples will be taken from the embankment. On completion all holes will be backfilled by impermeable solids such as cuttings or bentonite chips / pellets or grouting with bentonite-cement.

Contact Information
John Squires
Department of Water Resources
1416 9th Street
Sacramento, CA 96814

Phone : (916) 653-5363



Notice of Exemption

Exempt Status
Categorical Exemption
Type, Section or Code
Class 6
Reasons for Exemption
The purpose of the project is to collect data to compare to previous investigations of the foundation of Perris Dam. The purpose and land use of the facility will not change as a result of the exploratory work. While some areas near (mostly north and east) of Perris Lake are known to contain habitat for the Stephen's kangaroo rat (a Federal endangered and State threatened species), work will be confined to previously disturbed access roads and the dam face on the southwest side of the reservoir.

Disclaimer: The document was originally posted before CEQAnet had the capability to host attachments for the public. To obtain the original attachments for this document, please contact the lead agency at the contact information listed above. You may also contact the OPR via email at or via phone at (916) 445-0613.

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