Aeration System Improvements Project

2 Documents in Project


SCH Number
Lead Agency
Delta Diablo Sanitation District
Document Title
Aeration System Improvements Project
Document Type
NOE - Notice of Exemption

Document Description
The project involves the replacement of the existing aeration system facilities. The existing mechanical surface aerators and ancillary equipment mounted inside the five existing concrete aeration basin structures will be replaced with new fine bubble diffusion equipment within the same concrete aeration basin structures. In addition, the project involves the replacemetn of existing piping, valves, and flow meters to bypass flows directly to the aeration basins in response to a plant emergency or large storm. Lastly, the project will include related work to bring the project to fruition such as: electircal work to tie in replacement facilities; re-painting and site improvements within existing structures; and installation of piping to tie in replacement system facilities.

Contact Information
Gary W. Darling
Delta Diablo Sanitation District
2500 Pittsburg Antioch Highway
Antioch, CA 94509-1373

925 756-1900


Contra Costa

Notice of Exemption

Exempt Status
Categorical Exemption
Type, Section or Code
15302 - Class 2
Reasons for Exemption
The project involves the replacement of existing treatment plant facilities.
Download CSV New Search