Water Quality Certification Public Notices
Water Quality Certification Actions - Applicants for federal permits that involve dredge or fill activities in surface waters (including wetlands) are required to obtain certification from the state verifying that the activity will comply with state water quality standards. Most of these federal permits are referred to as 404 permits (in reference to Section 404 of the federal Clean Water Act). Applicants for some other types of federal license or permits (ex. FERC licenses) that authorize activities that may result in discharges to waters of the United States are also required to obtain state certification. This state certification is called 401 Certification (in reference to Section 401 of the Clean Water Act). In California, 401 certification actions are the responsibility of the State and Regional Water Quality Control Boards. It is the policy of this Regional Board to provide public notice of pending 401 Certification actions in order to gather comments from concerned agencies and the public. The following list contains notification of pending 401 Certification actions.
| Project Name | WDID | County | Location | Description | Comment period | Contact Info |
|---|---|---|---|---|---|---|
| Hoover Street Lift Station Flood Protection Project | 1B26123WNHU | Humboldt | latitude 40.8009° N and longitude -124.1372° W |
The purpose of the Project is to mitigate flood risk and ensure the continued operation of the Hoover Street lift station during extreme coastal flood events. The Project includes constructing a floodwall consisting of PZ-series interlocking sheet piles up to 8-feet high and 18-inch thick that will be driven approximately 20 feet into the ground to reach competent soil layers and to cutoff groundwater seepage. The floodwall will vary in height based on site topography to achieve a uniform top elevation of 16 feet NAVD88.Two new fittings will be installed on the existing force mains, which requires localized excavation and backfill of soil. Perimeter valley gutter and drop inlets will be installed to drain stormwater flows from within the floodwall boundary to the lift station sewer system. The existing paved and grassy areas within the flood wall will be graded and repaved to promote drainage to the new perimeter valley gutter. The Project will permanently impact 0.003 acres (120 square feet) of wetland habitat due to the new floodwall that will hydrologically disconnect the existing wetlands, and due to the new fittings for the bypass pumping. The Project will temporarily impact 0.015 acres (635 square feet) of wetland habitat due to access to install the floodwall and fittings. Compensatory mitigation is required for the proposed impacts to wetlands. The Project includes creating 0.011 acres (480 square feet) of three-parameter estuarine intertidal emergent wetlands, to mitigation for both permanent and temporary impacts. |
September 28, 2026 through October 18, 2026 | Maggie Teicher Margarete.Teicher@waterboards.ca.gov 707-576-2501 |
