Influent Pump Station Expansion Project

2 Documents in Project


SCH Number
Lead Agency
Napa Sanitation District
Document Title
Influent Pump Station Expansion Project
Document Type
MND - Mitigated Negative Declaration
Present Land Use
LUD: Public-Institutional. Z: Agricultural Watershed District: Airport Compatibility Combination District
Document Description
The project proposes to upgrade the existing Influent Pump Station (IPS) at the Soscol Water Recycling Facility (SWRF) to pump incoming flows up to 60 mgd. The proposed project would be designed to pump flows up to 20 mgd to the SWRF headworks and flows in excess of 20 mgd to Oxidation Pond No. 1. The new IPS would be located to the west of the existing IPS. The new IPS includes approximately 150 linear feet of new 66-inch influent sewer pipeline to the new IPS, new sewage forcemain piping to manhole No. 9 from the new IPS, an emergency diversion pipe to the water recovery basin and site paving and grading. The project would also include improvements to the IPS screenings area and manhole No. 9. The existing vactor dump site would be demolished and rebuilt, and a new electrical building, odor control facility, and flowmeter vault would be constructed.

Contact Information

Jennifer Johnson
Agency Name
Napa Sanitation District
Contact Types
Lead/Public Agency


Cross Streets
Soscol Ferry Road/Vista Point Drive
Parcel #
State Highways
Hwy 29/121
Napa County
Napa College
Napa River

Notice of Completion

Review Period Start
Review Period End
Development Types
Waste Treatment:Other (60 MGD)
Local Actions
NSD approval
Project Issues
Aesthetics, Agriculture and Forestry Resources, Air Quality, Biological Resources, Cultural Resources, Cumulative Effects, Drainage/Absorption, Flood Plain/Flooding, Geology/Soils, Growth Inducement, Hazards & Hazardous Materials, Hydrology/Water Quality, Land Use/Planning, Mineral Resources, Noise, Population/Housing, Public Services, Recreation, Schools/Universities, Sewer Capacity, Solid Waste, Transportation, Vegetation, Wetland/Riparian, Wildfire
Reviewing Agencies
California Department of Fish and Wildlife, Bay Delta Region 3 (CDFW), California Department of Parks and Recreation, California Department of Public Health (CDPH), California Department of Transportation, District 4 (DOT), California Highway Patrol, California Native American Heritage Commission (NAHC), California Public Utilities Commission (CPUC), Department of Water Resources, Resources Agency, State Water Resources Control Board, Divison of Financial Assistance, California Regional Water Quality Control Board, San Francisco Bay Region 2 (RWQCB)
Reviewing Agency Comments
California Regional Water Quality Control Board, San Francisco Bay Region 2 (RWQCB)

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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