Clifton Court Forebay Trenching Station 48 to 75 (OM-DFD-2021-024)
Summary
SCH Number
2021100006
Public Agency
California Department of Water Resources
(DWR)
Document Title
Clifton Court Forebay Trenching Station 48 to 75 (OM-DFD-2021-024)
Document Type
NOE - Notice of Exemption
Received
Posted
10/1/2021
Document Description
DWR staff will use mechanical excavation and hand augers to investigate longitudinal cracks along the downstream embankment of the Clifton Court Forebay. Marker paint will be used to gauge trenching depths. A nuclear density probe will be used at the same locations. Grab samples will be taken off site for analysis. Water trucks will be used to mimic natural precipitation for analysis. Soil cuttings will be back filled into trenches by excavator. To the extent possible, staging will be on established roadways and improved lots. All work is within DWR right of way.
Contact Information
Name
Todd Percival
Agency Name
Department of Water Resources
Contact Types
Lead/Public Agency / Parties Undertaking Project
Phone
Name
Sara Paiva-Lowry
Agency Name
Department of Water Resources
Contact Types
Lead/Public Agency / Parties Undertaking Project
Phone
Location
Coordinates
Counties
Contra Costa
Regions
Unincorporated
Cross Streets
Byron Highway and Clifton Court Road.
Other Location Info
SWP Facility: Clifton Court Forebay Dam.
Other Information
Mile Markers: ~Station 49+00 to 58+00 and ~Station 70+00 to 75+00
Notice of Exemption
Exempt Status
Categorical Exemption
Type, Section or Code
Class 6 (Sec. 15306) Information Collection
Reasons for Exemption
The State Water Project provides significant and important services to many Californians. This project is exempt because it involves data collection activities for a safe water supply. This project will not result in impacts to special status species or habitat. Because this activity can be implemented without any significant environmental impacts, the Categorical Exemption Class 6 will be used for CEQA compliance.
County Clerk
Contra Costa
Attachments
Notice of Exemption
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