City of Williams Wastewater Treatment Facility Improvement Project

3 Documents in Project


SCH Number
Lead Agency
Williams, City of (City of Williams)
Document Title
City of Williams Wastewater Treatment Facility Improvement Project
Document Type
MND - Mitigated Negative Declaration
Present Land Use
Public Facility

Document Description
The City of Williams wastewater improvement project will convert the existing aerated pond treatment system, which currently produces equivalent secondary effluent, to an activated sludge/filtration process. The new treatment plant will provide nutrient removal, filters, and disinfection, and produce tertiary effluent. The existing ponds will be removed from service and the sludge removed. A portion of the existing ponds may be used as influent flow equalization and/or sludge storage. Treated effluent will continue to be discharged to Salt Creek. The improved WWTF will have capacity to treat up to 480,000 gallons per day (gpd). In addition, the upgraded plant will have the capacity to handle a peak day flow rate of at least 1.5 million gpd.

Contact Information
James Manning
City of Williams
810 E Street
Williams, CA 95987

Phone : (530) 473-2948


Cross Streets
Old Highway 99W and Highway 20
Parcel #
State Highways
I-5, Highway 99W and Highway 20
Union Pacific
Salt Creek

Notice of Completion

Review Period Start
Review Period End
Development Type
Industrial (2-3 Acres) Waste Treatment:Other (Secondary MGD 0.48)
Local Action
Other Action
Project Issues
Aesthetic/Visual Agricultural Land Air Quality Archaeologic-Historic Biological Resources Geologic/Seismic Minerals Noise Population/Housing Balance Public Services Recreation/Parks Sewer Capacity Soil Erosion/Compaction/Grading Toxic/Hazardous Traffic/Circulation Vegetation Water Quality Water Supply Wetland/Riparian Land Use
Reviewing Agencies
Air Resources Board, Major Industrial Projects California Department of Fish and Wildlife, North Central Region 2 California Department of Health Care Services California Department of Parks and Recreation California Department of Transportation, District 3 California Highway Patrol California Native American Heritage Commission California Public Utilities Commission California Regional Water Quality Control Board, Central Valley Sacramento Region 5 California State Lands Commission Department of Water Resources Office of Historic Preservation Resources Agency State Water Resources Control Board, Division of Water Rights State Water Resources Control Board, Division of Loans and Grants

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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