Wastewater Treatment Plant Expansion Phase III

2 Documents in Project


SCH Number
Lead Agency
City of Patterson
Document Title
Wastewater Treatment Plant Expansion Phase III
Document Type
MND - Mitigated Negative Declaration
Present Land Use
The project site is the current site of the Wastewater Treatment Plant and is completely within property boundaries. The site is zoned public/quasi-public.
Document Description
The project assessed by the initial study includes the construction of a 1.25 mgd oxidation ditch and clarifier, a grinder/splitter structure, a return activated sludge and waste activated sludge pump station, three additional aerobic digesters, a dewatering screw press or centrifuge, improvements to the existing influent pump station (aluminum planking system on top of the IPS, an aluminum chute and bagging system for the screening of deposits, and a biofilter system to treat the foul air), and interconnection piping between the North Activated Sludge System and South Activated Sludge System.

Contact Information

Joel Andrews
Agency Name
City of Patterson
Contact Types
Lead/Public Agency


Cross Streets
Poplar Avenue and Walnut Avenue
Total Acres
Parcel #
047-029-003, 047-037-017
San Joaquin River

Notice of Completion

Review Period Start
Review Period End
Development Types
Waste Treatment:Other (Oxidation ditch, etc)
Local Actions
Specific Plan
Project Issues
Air Quality, Biological Resources, Drainage/Absorption, Geology/Soils, Growth Inducement, Hydrology/Water Quality, Noise, Public Services, Sewer Capacity, Transportation
Reviewing Agencies
California Department of Fish and Wildlife, Central Region 4 (CDFW), California Department of Health Care Services (DHCS), California Department of Parks and Recreation, California Department of Transportation, District 10 (DOT), California Regional Water Quality Control Board, Central Valley Sacramento Region 5 (RWQCB), Department of Toxic Substances Control, Department of Water Resources, Resources Agency, State Water Resources Control Board, Division of Water Quality, State Water Resources Control Board, Divison of Financial Assistance, California Native American Heritage Commission (NAHC)
Reviewing Agency Comments
California Native American Heritage Commission (NAHC)

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 state.clearinghouse@opr.ca.gov or via phone at (916) 445-0613.

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