66-Inch Trunk Sewer Rehabilitation Project: Kaiser Road to Soscol Water Recycling Facility (CIP 19701)

2 Documents in Project


SCH Number
Lead Agency
Napa Sanitation District
Document Title
66-Inch Trunk Sewer Rehabilitation Project: Kaiser Road to Soscol Water Recycling Facility (CIP 19701)
Document Type
MND - Mitigated Negative Declaration
Project Applicant
Napa Sanitation District
Present Land Use
City: Agriculture, Industrial, Public/Quasi Public School and Health Facilities District. County: Agriculture, Industrial, Napa Pipe Mixed -Use Residential Waterfront and Mixed Use Industrial/Business Park, Public Lands

Document Description
The project would rehabilitated approx 6,935 linear feet of 66-inch diameter trunk sewer pipeline using a trenchless rehabilitation lining system. To conducted the sewer rehabilitation work, installation of a temporary sewer bypass system would be necessary. The temporary bypass pipelines would be installed above-ground at roadway and driveway crossings and through intersections where they would be temporarily shallow buried. There are several options for the placement of the bypass pipelines; the IS/MND evaluates the potential environmental impacts of all options, however the preferred option is Cured In Place Pipe (CIPP) using Bypass Alternative 2 for crossing of the Bedford Slough.

Contact Information
Karl Ono
Napa Sanitation District
1515 Soscol Ferry Road
Napa, CA 94558

Phone : (707) 258-6013


38°14'45"N 122°17'0"W
Cross Streets
Generally bounded to the north by Kaiser Rd, to the east by Napa Valley Corporate Dr, to the sou
Total Acres
Parcel #
046-370-003, 046-630-007, 046-400-105, 046-610-021, 046-400-016, 057-010-038, 046-400-054, 046-4
State Highways
State Route 12/29 and 221
Union Pacific/CA Northern Railrd
Napa County Airport
Irene M. Snow Elementary, Napa Valley College
Napa River, Bedford Slough, Soscol Creek

Notice of Completion

Review Period Start
Review Period End
Development Type
Waste Treatment:Sewer (Sewer trunk line)(21.5 estimated MGD)
Local Action
Other Action
Project Issues
Aesthetic/Visual Agricultural Land Air Quality Archaeologic-Historic Biological Resources Coastal Zone Drainage/Absorption Flood Plain/Flooding Forest Land/Fire Hazard Geologic/Seismic Housing Minerals Noise Population/Housing Balance Public Services Recreation/Parks Schools/Universities Septic System Sewer Capacity Soil Erosion/Compaction/Grading Solid Waste Toxic/Hazardous Traffic/Circulation Tribal Cultural Resources Vegetation Water Quality Water Supply Wetland/Riparian Growth Inducing Land Use Cumulative Effects
Reviewing Agencies
California Air Resources Board California Department of Conservation California Department of Parks and Recreation California Department of Transportation, Division of Aeronautics California Department of Water Resources California Governor's Office of Emergency Services California Highway Patrol California Native American Heritage Commission California Natural Resources Agency California Public Utilities Commission California Regional Water Quality Control Board, San Francisco Bay Region 2 California State Lands Commission Department of Toxic Substances Control Office of Historic Preservation State Water Resources Control Board, Division of Drinking Water State Water Resources Control Board, Division of Drinking Water, District 3 State Water Resources Control Board, Division of Water Quality California Department of Fish and Wildlife, Bay Delta Region 3 California Department of Transportation, District 4


Environmental Document
Appendices_NapaSan ISMND for 66-inch Trunk Sewer Rehab Project_ March 2020   PDF 25676 K NapaSan ISMND for 66-inch Trunk Sewer Rehab Project_March 2020   PDF 5384 K NOI_NapaSan 66-inch Trunk Sewer Rehab_03   PDF 502 K OPR Summary Form - NapaSan 66-inch Trunk Sewer Rehab   PDF 651 K
OPR NOC Signed - NapaSan 66-inch Trunk Sewer Rehab   PDF 776 K
State Comments
2020031118_Caltrans Comment   PDF 452 K 2020031118_CDFW Comment   PDF 385 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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