2022 Walnut Creek Sewer Renovation Project Phase 16


SCH Number
Public Agency
Central Contra Costa Sanitary District
Document Title
2022 Walnut Creek Sewer Renovation Project Phase 16
Document Type
NOE - Notice of Exemption
Document Description
The Project will replace or rehabilitate approximately 11, 000 feet of small diameter sewer mains, maintenance access structures, and other related public sewer work within public rights- of-way and private easements. Central San staff prepared the plans and specifications for the Project. Construction methods primarily include open trench, pipe bursting, horizontal directional drilling, and cured- in- place pipe.

Contact Information

Russell B Leavitt
Agency Name
Central Contra Costa Sanitary District (Central San)
Job Title
Environmental Coordinator
Contact Types
Lead/Public Agency / Project Applicant / Parties Undertaking Project


Alamo, Walnut Creek
Contra Costa
Northern California, San Francisco Bay Area
Other Location Info
Various locations in the City of Walnut Creek, unincorporated Walnut Creek and unincorporated Alamo

Notice of Exemption

Exempt Status
Categorical Exemption
Type, Section or Code
Sections 15302 and15061(b)(3)
Reasons for Exemption
At its June 16, 2022, meeting, the Central San Board of Directors independently found that this project is exempt from CEQA under Central San CEQA Guidelines Section 15302 because it involves replacement of existing facilities at substantially the same locations and with the same purpose and level of activity as the facilities being replaced. Any capacity increases are for nongrowth inducing, wet weather purposes. The Project also is exempt under Central San CEQA Guidelines Section 15061(b)(3), since it can be seen with certainty that there is no possibility that the activity in question may have a significant effect on the environment. This certainty is based on Central San's experience with numerous sewer construction projects of this nature, the relatively short distance involved, and Central San's mitigating construction specifications. These specifications are standardized general and special conditions that are made part of the Project bid documents to address environmental considerations, such as protecting trees and riparian areas, as well as compliance with applicable federal, state, county, district, municipal and local laws, ordinances, orders, and regulations.
County Clerk
Contra Costa


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