WAS Thickener Replacement Project
2 Documents in Project
Summary
SCH Number
2023100002
Public Agency
State Water Resources Control Board
Document Title
WAS Thickener Replacement Project
Document Type
NOE - Notice of Exemption
Received
Posted
6/6/2025
Document Description
The State Water Resources Control Board (State Water Board) is a Responsible Agency for the Project. The State Water Board is funding the Project referred to internally as WAS Thickener Replacement Project. The Project will replace the existing three gravity belt thickeners and associated pumps, polymer blending units, piping, ventilation equipment, and electrical equipment at the Alvarado wastewater treatment plant (Alvarado WWTP). The footprint of the existing Alvarado WWTP will not be expanded, and all equipment is being replaced in-kind.
Contact Information
Name
Cedric Irving
Agency Name
State Water Resources Control Board
Job Title
Environmental Scientist
Contact Types
Lead/Public Agency
Phone
Name
Derek Chiu
Agency Name
Union Sanitary District
Job Title
Assistant Engineer
Contact Types
Lead/Public Agency
Phone
Location
Cities
Union City
Counties
Alameda
Regions
Citywide
Other Information
The Project is located at the Union Sanitary District’s Alvarado Treatment Plant in Alameda County at 5072 Benson Rd, Union City, CA 94587.
Notice of Exemption
Exempt Status
Categorical Exemption
Type, Section or Code
Class 1: California Code of Regulations, title 14, division 6, chapter 3, article 19, section 15301
Reasons for Exemption
The Project involves replacement of equipment that has exceeded its useful life, and minor new supporting improvements that will be confined to the existing facility and involve negligible expansion of capacity.
Exempt Status
Categorical Exemption
Type, Section or Code
Class 2: California Code of Regulations, title 14, division 6, chapter 3, article 19, section 15302
Reasons for Exemption
The Project involves replacement of equipment that has exceeded its useful life, and minor new supporting improvements that will be confined to the existing facility and involve negligible expansion of capacity.
Exempt Status
Categorical Exemption
Type, Section or Code
Class 3: California Code of Regulations, title 14, division 6, chapter 3, article 19, section 15303
Reasons for Exemption
The Project involves replacement of equipment that has exceeded its useful life, and minor new supporting improvements that will be confined to the existing facility and involve negligible expansion of capacity.
County Clerk
Alameda
Attachments
Notice of Exemption
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