Pinole-Hercules Water Pollution Control Plant Upgrade

10 Documents in Project


SCH Number
Lead Agency
City of Pinole
Document Title
Pinole-Hercules Water Pollution Control Plant Upgrade
Document Type
NOD - Notice of Determination

Document Description
The Pinole-Hercules WPCP Improvement Project EIR, which evaluated two project options for improvements to the WPCP, was certified by the City of Pinhole in July of 2010. Since that time, the cities of Pinole and Hercules have prepared preliminary designs to identify the treatment and conveyance upgrades needed at the WPCP. The preliminary designs are much like the Option 1 design, which was fully evaluated in the 2010 EIR, with a few key exceptions. The primary exception is that the previously proposed parallel 24-inch force main from the Pinole-Hercules WPCP to the Rodeo Sanitary District (RSD) Deep Water Outfall is no longer included in the project design. Rather than discharge all effluent to RSD's Deep Water Outfall, as originally proposed under Option 1, the Pinole-Hercules WPCP will now discharge up to 14 million gallons per day (MGD) of treated effluent via the Deep Water Outfall, and up to 6 MGD of treated effluent via the WPCP's Emergency Outfall only during periods when influent flows exceed 14 MGD (i.e., discharge capacity of the Deep Water Outfall). Proposed WPCP improvements include but are not limited to a new influent pump station and headworks facility south of the existing Plant structures, but within the existing developed footprint of the overall WPCP site. In addition, the project includes a new Solids Handling Facility near the existing cogeneration facility; replacement of the primary sludge pumps; expansion of existing aeration basins; and installation of two new secondary clarifiers (65 feet in diameter).

Contact Information
Dean Allison
City of Pinole
Lead/Public Agency
2131 Pear Street
Pinole, CA 94564

Phone : (510) 724-9010


Hercules Pinole
Contra Costa
Cross Streets
Tennent Avenue, San Pablo Avenue, Parker Avenue
State Highways
SR 4 & I-80
Union Pacific
St. Joseph School, et. al.
San Pablo Bay; Pinole, Ohlone, Refugio, & Rodeo Creek
Other Location Info
City/Nearest Community: Rodeo

Notice of Determination

Approving Agency
City of Pinole
Approving Agency Role
Lead Agency
Approved On
Final Environmental Document Available at
Pinole City Clerk's Office 2131 Pear Street, 2nd Floor, Pinole, CA 94564.


(1) The project will have a significant impact on the environment
(2a) An Environmental Impact Report was prepared for this project pursuant to the provisions of CEQA
(2b) A Mitigated or a Negative Declaration was prepared for this project pursuant to the provisions of CEQA
(2c) An other document type was prepared for this project pursuant to the provisions of CEQA
(3) Mitigated measures were made a condition of the approval of the project
(4) A mitigation reporting or monitoring plan was adopted for this project
(5) A Statement of Overriding Considerations was adopted for this project
(6) Findings were made pursuant to the provisions of CEQA

Disclaimer: The document was originally posted before CEQAnet had the capability to host attachments for the public. To obtain the original attachments for this document, please contact the lead agency at the contact information listed above. You may also contact the OPR via email at or via phone at (916) 445-0613.

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