The department proposes to issue a Section 401 Water Quality Certification to the Metropolitan St. Louis Sewer District, subject to general or special conditions. The department invites the public to review and offer written comments on the proposed certification conditions until Aug. 13, 2024. The public can review the proposed certification conditions below. Other relevant information is available for review and copying upon request. Written comments may be submitted by mail to Missouri Department of Natural Resources, Water Quality Certification, PO Box 176, Jefferson City, MO 65102-0176 or by email to wpsc401cert@dnr.mo.gov. Please include the certification number in the comment letter.
The Metropolitan St. Louis Sewer District requested Section 401 Water Quality Certification to accompany the U.S. Army Corps of Engineers' (USACE) Permit for Nationwide Permit 13 for “Bank Stabilization.” The project is located in Land Grant 2689, in St. Louis County, Missouri. The proposed project includes the following items:
- Stabilizing the banks using hard armoring, comprised of a soldier pile wall system to reduce the risk on adjacent properties from bank failure
- Lining the channel bottom with rocks to provide energy dissipation and grade control
- Restoring the channel by removing concrete and asphalt debris and integrate native plants in the upland zone to protect from erosion once plants are establishe.