Digester C, D, F, and G Mechanical Rehabilitation at Plant No. 2, Project No. FE20-02


SCH Number
Public Agency
Orange County Sanitation District
Document Title
Digester C, D, F, and G Mechanical Rehabilitation at Plant No. 2, Project No. FE20-02
Document Type
NOE - Notice of Exemption
Document Description
This project will replace various aging mechanical equipment at Digesters C, D, F, and G at Plant No. 2. This includes four high rate mixing pumps, four heat exchangers, four recirculation pumps, two sludge transfer pumps, and associated piping. All equipment will be replaced in kind except for the high rate mixing pumps which will be upgraded to chopper pumps. Additionally, the project will replace aging digester gas balance lines for a total of 100 linear feet, repair digester concrete bridge, and install steel support frames at bridges between Digesters C-D, D-I and F-G.

Contact Information

Kevin Hadden
Agency Name
OC San
Job Title
Principal Staff Analyst
Contact Types
Lead/Public Agency


Huntington Beach
Cross Streets
Brookhurst Street and Bushard Street

Notice of Exemption

Exempt Status
Categorical Exemption
Type, Section or Code
CEQA Guidelines Class 1 § 15301
Reasons for Exemption
The project is exempt from CEQA under the Class 1 categorical exemptions set forth in California Code of Regulations sections 15301. Section 15301 (Class 1) exempts from CEQA “the operation, repair, maintenance … or minor alteration of existing public or private structures, facilities … involving negligible or no expansion of use beyond that existing at the time of the lead agency’s determination” including “(b) Existing facilities of both investor and publicly owned utilities used to provide electric power, natural gas, sewerage, or other public utility services.” The project is exempt because it involves repair to existing facilities by replacing aging mechanical, piping and electrical, assets which does not involve expansion of use of the digesters.
County Clerk


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