Wastewater Treatment Plant Critical Improvements Project

2 Documents in Project


SCH Number
Public Agency
City of Richmond
Document Title
Wastewater Treatment Plant Critical Improvements Project
Document Type
NOE - Notice of Exemption

Document Description
The State Water Resources Control Board (State Water Board) is a Responsible Agency for the Project. The State Water Board’s Clean Water State Revolving Fund (SRF) Program is financing the Project. The purpose of the Project is to enable the City of Richmond (City) to replace aging and unreliable infrastructure, comply with future discharge regulations, and upgrade or replace non-functioning or obsolete treatment processes with efficient, adaptable, and reliable systems. Additionally, improvements for the aeration system will reduce health and safety impacts from aerosols created by the existing mixers. Work at the WWTP will include implementation of the Project, which will upgrade the grit removal system, aeration system, and secondary clarifier. Upgrades at the grit removal system would include construction of a new screening and vortex grit removal system to replace the non-functioning existing gravity grit chambers. Construction activities include demolition of the existing grit basin structure and construction of a new screening/grit structure that would include a fine screening, two (2) vortex grit basins, and new Parshall flumes for flow measurement.

Contact Information
Chi-Hai Kalita
State Water Resources Control Board
Lead/Public Agency
1001 I Street
Sacramento, CA 95814

Phone : (916) 319-8574

City of Richmond
Project Applicant


Contra Costa
Other Location Info
The wastewater treatment plant (WWTP) is located at 601 Canal Boulevard in Richmond, Contra Costa County, California.

Notice of Exemption

Exempt Status
Categorical Exemption
Type, Section or Code
15302, 15303
Reasons for Exemption
The Project has been determined to meet the requirements of the exemption(s) selected above and will not have a significant impact on water quality. The Project consists of replacement or reconstruction of existing structures and facilities where the new structure will be located on the same site as the structure replaced and will have substantially the same purpose and capacity as the structure replaced. The Project also includes limited new construction at the existing WWTP to improve plant safety and its ability to reliably meet the WWTP's National Pollutant Discharge Elimination System permit requirements.


Notice of Exemption
NOE   PDF 250 K

Disclaimer: The Governor’s Office of Planning and Research (OPR) accepts no responsibility for the content or accessibility of these documents. To obtain an attachment in a different format, please contact the lead agency at the contact information listed above. You may also contact the OPR via email at state.clearinghouse@opr.ca.gov or via phone at (916) 445-0613. For more information, please visit OPR’s Accessibility Site.

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