Patterson Reservoir Sediment Pond Sediment Removal (OM-DFD-2021-001)


SCH Number
Public Agency
California Department of Water Resources (DWR)
Document Title
Patterson Reservoir Sediment Pond Sediment Removal (OM-DFD-2021-001)
Document Type
NOE - Notice of Exemption

Document Description
Delta Field Division (DFD) staff will perform maintenance at Patterson Reservoir along the South Bay Aqueduct. DFD and Contractor will haul away previously pumped and dried sediment from drying pond. Staff will load the sediment into dump trucks using a loader. A water truck will be used for dust control. The loaded sediment will be transported off-site to the nearest waste disposal site. Total area of the sediment basin is approximately 0.67 acre. Equipment staging will be on the paved roadway at the south end of the sediment basin. All work is within DWR right of way.

Contact Information
Todd Percival
Department of Water Resources
Lead/Public Agency
1416 Ninth Street
Sacramento, CA 95814

Phone : (916) 653-2908

Division of Operations and Maintenance
Project Applicant


37°41'47.34"N 121°40'55.37"W
San Francisco Bay Area
Cross Streets
Patterson Pass Rd & Greenville Rd.
Other Information
Patterson Reservoir, South Bay Aqueduct (SBA), Mile Markers: SBA MM 9.44.

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 important 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. Because this activity can be implemented without any significant environmental impacts, the Categorical Exemption Class 1 will be used for CEQA compliance.


Notice of Exemption
NOE Patterson Reservoir Sediment Removal OM-DFD-2021-001   PDF 419 K

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