DWR's Crafton Hills Reservoir Dam Repair Grouting Project for 2016

Summary

SCH Number
2016118391
Public Agency
California Department of Water Resources (DWR)
Document Title
DWR's Crafton Hills Reservoir Dam Repair Grouting Project for 2016
Document Type
NOE - Notice of Exemption
Received
Posted
11/30/2016

Document Description
The purpose of this project is to remediate the seepage that has been observed downstream of the original Crafton Hills Reservoir Dam. This work will consist of drilling and grouting up to 24 holes along the CHR Dam Access road. The holes will be drilled through the asphalt road to a depth of 100 feet using a rubber tracked drill rig. The holes will be grouted using high-mobility-grout under low pressures to fill the voids in the rock formation. Grout injection will continue until the established refusal criteria are met. Wells downstream of the grouting location will be monitored continuously during grouting for pH or turbidity changes. The work is expected to last three weeks, with mobilization starting 11/28/16. This project will not have any potentially significant adverse environmental impacts.

Contact Information
Duane Cornett
California Department of Water Resources
Lead/Public Agency
1416 Ninth Street
Sacramento, CA 95814

Phone : (916) 653-5363

Location

Cities
Yucaipa
Counties
San Bernardino

Notice of Exemption

Exempt Status
Categorical Exemption
Type, Section or Code
S:15301 C:1
Reasons for Exemption
This project is categorically exempt under CEQA, Class 1(m), as a minor repair to an existing dam under the supervision of the Department of Water Resources.

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 state.clearinghouse@opr.ca.gov or via phone at (916) 445-0613.

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