Castaic Dam Piezometer Installation Project
Summary
- SCH Number
- 2020080125
- Lead Agency
- Water Resources, Department of (California Department of Water Resources)
- Document Title
- Castaic Dam Piezometer Installation Project
- Document Type
- NOE - Notice of Exemption
- Received
- Posted
- 8/10/2020
- Project Applicant
- California Department of Water Resources
- Document Description
- The proposed project includes the installation of piezometers and an inclinometer at six different locations on the left abutment of the Castaic Dam. This is proposed after an Engineering Report prepared on December 31, 2018 presented a stability analysis for the left abutment of the Castaic Dam and identified data gaps in the piezometric data. DWR concluded that the left abutment is stable but piezometric surfaces appear lower than assumed in previous stability analyses. As a result, the proposed project will address the need for more precise data of the hydrogeological setting at Castaic Dam’s left abutment. (See Attachment A)
- Contact Information
-
Gina Radieve
California Department of Water Resources
1416 9th Street
Sacramento, CA 95814
Phone : (916) 712-6873
Location
- Cities
- Castaic
- Counties
- Los Angeles
- Other Location Info
- The project is located in the Castaic Lake State Recreation Area in Castaic, CA. The work will occur on the left abutment (the esatern side) of the Castaic Lake Dam (see Exhibit A).
Notice of Exemption
- Exempt Status
- Categorical Exemption
- Type, Section or Code
- 15306
- Reasons for Exemption
- The proposed project involves collection of exploratory information to address the need for more precise data of the hydrogeological setting at Castaic Dam’s left abutment. The exploratory work will provide an accurate capture of differences in piezometric pressure between areas in geologic formations that are considered critical to the dam’s left abutment stability. The project would not result in any serious or major disturbance to an environmental resources.
Attachments
- Notice of Exemption
- 2020080125_Castaic Dam Piezometer Installation Project PDF 1720 K
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