Section 401 Water Quality Certification Public Notice

Napa Logistics Park Outfall Maintenance


The San Francisco Regional Water Quality Control Board is currently reviewing an application for the following project for water quality certification under Section 401 of the Clean Water Act. We encourage public comments on the proposed work, which will be considered in the decision on certification. You may submit comments on this project to the staff member below.


Project Name:

Napa Logistics Park Outfall Maintenance
City/County:

Unincorporated, Napa County
Comment Period:

11/03/2026 - 11/23/2026
Project Description:

Within the Napa Logistics Park in American Canyon, PG&E operates our Napa Regional Service Center (RSC). The Napa RSC is served by a stormwater drainage system that discharges into a wetland, which is classified as an estuarine wetland in the California Aquatic Resources Inventory. The wetland that receives discharges from the stormwater drainage system (38°12'16.72"N, 122°16'50.01"W) flows into the tidal wetlands along Napa River through a culvert near the Napa Airport (38°12'42.08"N, 122°17'11.93"W). The outfall structure has become choked with dense wetland vegetation, which has also started growing within the drainage pipe. These conditions have reduced the drainage capacity of the Napa RSC requiring immediate action to prepare for upcoming wet weather winter.
Project Files:

Contact Staff for files
Staff Contact:

Alicia Pisani
(510) 622-2318
Water Quality Control Board
1515 Clay Street, Ste 1400
Oakland, CA 94612