Section 401 Water Quality Certification Public Notice
East Third Avenue Landfill (Seal Point Park)
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: | East Third Avenue Landfill (Seal Point Park) |
|---|---|
| City/County: | San Mateo, San Mateo County |
| Comment Period: | 10/30/2025 - 11/20/2025 |
| Project Description: | The project purpose is to perform exploratory trenching to determine the source of landfill liquids contributing to hydrogen sulfide discharge suspected of percolating into a constructed wetland mitigation area south of the closed landfill. The goal for the work is to provide remedial action to impede liquid intrusion from the landfill prior to reaching the constructed wetland. |
| Project Files: | Contact Staff for files |
| Staff Contact: | Jackson Fimrite (510) 622-2310 Water Quality Control Board 1515 Clay Street, Ste 1400 Oakland, CA 94612 |
