Dyer V-Ditch Erosion Repair (OM-DFD-2023-007)


SCH Number
Public Agency
California Department of Water Resources (DWR)
Document Title
Dyer V-Ditch Erosion Repair (OM-DFD-2023-007)
Document Type
NOE - Notice of Exemption
Document Description
DWR Staff will repair erosions along the South Bay Aqueduct at Dyer Reservoir. A backhoe and hand tools will be used to excavate the erosion site to remove any existing gravel or soil with poor structure around multiple erosions. Native soil is stored at the Patterson Yard stockpile location, and the backhoe will be staged to load haul trucks. Rip rap aggregate from Skinner Fish Facility will be hauled to erosion repair site. Staging and access will be via existing DWR access roads and improved lots. All work is within DWR right of way.

Contact Information

Todd Percival
Agency Name
Department of Water Resources
Job Title
Environmental Scientist
Contact Types
Lead/Public Agency / Parties Undertaking Project

Sara Paiva-Lowry
Agency Name
Department of Water Resources
Job Title
Environmental Program Manager I
Contact Types
Lead/Public Agency / Parties Undertaking Project


Northern California, Unincorporated
Cross Streets
Dyer Rd and Altamont Pass Road
Other Location Info
Dyer Reservoir along South Bay Aqueduct of State Water Project. Mile Marker: 3.71 to 3.75
Other Information
Coordinates: Start: 37°45’33”N, 121°40’31.2”W. End: 37°45’30.8”N, 121°40’31.4”W.

Notice of Exemption

Exempt Status
Categorical Exemption
Type, Section or Code
Class 1, Existing Facilities, Section No. 15301(b)
Reasons for Exemption
The State Water Project provides significant and critical services to many Californians. This project is exempt because it involves routine maintenance activities. This project will not result in impacts to special status species or habitat. The Categorical Exemption Class 1 will be used for CEQA compliance as this activity will be implemented without any environmental impacts.
County Clerk


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