Del Valle Spillway Basin/DFD Dell Valle Road/Arroyo Road

Summary

SCH Number
2017078132
Lead Agency
Water Resources, Department of (California Department of Water Resources)
Document Title
Del Valle Spillway Basin/DFD Dell Valle Road/Arroyo Road
Document Type
NOE - Notice of Exemption
Received

Document Description
DFD staff will dewater the Del Valle Dam stilling basin and spillway in order to perform and inspection per Dam Safety Branch requirements. The spillway and stilling basin are located immediately downstream of Del Valle Dam. Two six inch trash pumps with a 100 to 150 foot hose, working in tandems, will be used to dewater the basin. The flow will be directed into the route downstream discharges, which is Arroyo Valley Creek. The project footprint is approximately 1.8 acre and includes the spillway and stilling basin. Upon completion of the inspection, the spillway and basin will return to normal operations. Access to the site is directly off Arroyo Road, which is the main entrance into Del Valle Pumping Plant. The entire compound is within DFD right of way.

Contact Information
Jerry Snow
California Department of Water Resources
1416 Ninth Street
Sacramento, CA 95814

(916) 653-7213

Location

Cities
Livermore
Counties
Alameda
Cross Streets
DFD Del Valle Road/Arroyo Road
Waterways
Del Valle Spillway Basin

Notice of Exemption

Exempt Status
Categorical Exemption
Type, Section or Code
C:1 S:15301
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 environment impacts, the Categorical Exemption Class 1 will be used for CEQA compliance.
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