Yountville Recycled Water Transmission Main Repair (Notification of Lake or Streambed Alteration, No. EPIMS-NAP-55603-R3)
Summary
SCH Number
2026020719
Public Agency
California Department of Fish and Wildlife, Bay Delta Region 3
(CDFW)
Document Title
Yountville Recycled Water Transmission Main Repair (Notification of Lake or Streambed Alteration, No. EPIMS-NAP-55603-R3)
Document Type
NOE - Notice of Exemption
Received
Posted
2/19/2026
Document Description
The California Department of Fish and Wildlife (CDFW) has executed Lake and Streambed Alteration Agreement EPIMS Notification No. EPIMS NAP-55603-R3, pursuant to Section 1602 of the Fish and Game Code, to the Town of Yountville.
The Project is limited to installation of approximately 2,200 linear feet of 8-inch diameter, high density polyethylene (HDPE) pipe using horizontal directional drilling (HDD) methods in order to restore recycle water conveyance services and replace an existing 6-inch diameter polyvinyl chloride (PVC) pipe that was rendered unusable following a collapse in February 2023.
Following installation of the new HDPE water main, the temporary repair will be decommissioned and removed completely from the site, and the original 6-inch diameter PVC main pipeline will be capped on either end at the two open trench HDD tie-in points, but will remain buried beneath the Napa River. No cementitious materials will be used to fill the existing pipeline. The Project will investigate the broken pipe’s condition, location, and depth. If the pipeline is determined to be located within the stream scour zone, an amendment to the Agreement will be required to include additional activities to remove the pipe potentially including but not limited to dewatering. If the existing pipeline is determined to be located outside of the stream scour zone, the capped pipeline will be left in place, and the Permittee will continue to monitor the existing pipe location on an annual basis to ensure it does not impede flow for the full term of the Agreement.
Contact Information
Name
Rosalba Ramirez
Agency Name
Town of Yountville
Job Title
Person or Public Agency Carrying Out Project
Contact Types
Parties Undertaking Project
Phone
Email
Name
Melanie Day
Agency Name
CA Department of Fish and Wildlife
Job Title
Senior Environmental Scientist (Supervisory)
Contact Types
Lead/Public Agency
Phone
Location
Coordinates
Cities
Yountville
Counties
Napa
Regions
San Francisco Bay Area
Parcel #
039-040-041
Other Location Info
The Project is located at the Napa River, in the County of Napa, State of California; Latitude 38.39869, Longitude -122.34348; southeast of the Town of Yountville, 94599; Assessor’s Parcel Numbers 039-040-041, 039-040-050, and 036-010-013.
Notice of Exemption
Exempt Status
Categorical Exemption
Type, Section or Code
California Code of Regulations, title 14, section 15302
Reasons for Exemption
On August 22, 2024, the Town of Yountville Public Works Department, the Lead Agency, determined that the Project is categorically exempt pursuant to California Code of Regulations, title 14, section 15302. The Lead Agency determined that the Project meets certain qualifying criteria for the exemption. Pursuant to Public Resources Code section 21080.1, subdivision (a), the Lead Agency is responsible for determining whether the Project is exempt from CEQA and that determination shall be final and conclusive on all persons, including Responsible Agencies. As a result, CDFW, acting as a Responsible Agency, is bound by the Lead Agency’s determination that the Project is exempt from CEQA.
Attachments
Notice of Exemption
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