2023 Aeration Unit 1 Steam Turbine Overhaul, District Project 100054
Summary
SCH Number
2023070190
Public Agency
Central Contra Costa Sanitary District
Document Title
2023 Aeration Unit 1 Steam Turbine Overhaul, District Project 100054
Document Type
NOE - Notice of Exemption
Received
Posted
7/11/2023
Document Description
This Project will overhaul the Aeration Unit 1 steam turbine and trip safety valves, which includes removing existing diaphragms and rotor from the steam turbine to clean and conduct damage assessment, carrying out necessary modifications to the spare rotor to put it in the steam turbine, machining the nozzle block and labyrinth seal, along with new throttle valve seats, plunger, stem, snap ring, and carbons for the throttle valve. This Project is expected to be completed in 90 days. Aeration Unit 2 will be operated during this time with the new neuro electric blowers as backup to maintain the treatment plant process.
Contact Information
Name
RUSSELL LEAVITT
Agency Name
Central Contra Costa Sanitary District (Central San)
Job Title
Environmental Coordinator
Contact Types
Lead/Public Agency / Project Applicant / Parties Undertaking Project
Phone
Email
Location
Counties
Contra Costa
Regions
Northern California, San Francisco Bay Area
Cross Streets
CCCSD, 5019 IMHOFF PLACE
Zip
94553
State Highways
CA 4
Notice of Exemption
Exempt Status
Categorical Exemption
Type, Section or Code
CEQA Guidelines Sections 15301
Reasons for Exemption
At its July 6. 2023, meeting, the Central San Board of Directors independently found this project is exempt from the California Environmental Quality Act (CEQA) under Central San's CEQA Guidelines Section 15301, since it involves minor alterations to existing public facilities involving no expansion of use.
County Clerk
Contra Costa
Attachments
Notice of Exemption
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