2022 Laboratory Roof and Seismic Upgrade


SCH Number
Public Agency
Central Contra Costa Sanitary District
Document Title
2022 Laboratory Roof and Seismic Upgrade
Document Type
NOE - Notice of Exemption
Document Description
The Environmental Laboratory Building (Lab) is located within the Central San Martinez wastewater treatment plant campus and is a critical and specialty facility used daily by staff for permitting and regulatory compliance, and process control. In recent years, the roof condition has steadily degraded with several leaks, the most significant of which were in the testing areas of the Lab. The Laboratory Roof and Seismic Upgrades, District Project 100008 (Project), will replace the roofing and perform minor structural modifications to upgrade the seismic criteria from the 1994 building code to current design standards. Most of the structural work will be performed above the ceiling, or from the exterior, and from the roof. In addition, the building HVAC will be modified to allow for better maintenance access and less disruption to the office area.

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


Contra Costa
Northern California, San Francisco Bay Area, Unincorporated
Cross Streets
5019 Imhoff Place
State Highways

Notice of Exemption

Exempt Status
Categorical Exemption
Type, Section or Code
Section 15302, Replacement and Reconstruction
Reasons for Exemption
At its July 21, 2022, meeting, the Central San Board of Directors independently found that the 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.
County Clerk
Contra Costa


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