“The U.S. Army Corps of Engineers, Walla Walla District (USACE), invites your comments on the draft Finding of No Significant Impact (FONSI) and Programmatic Environmental Assessment (EA) for the Federal Cost-Share Support for Invasive Mussels Prevention and Elimination Efforts.
The EA describes the USACE plans to establish a federal cost-share framework to support rapid response, prevention, and active management of invasive mussels within the Columbia River Basin. The framework is intended to strengthen the capacity of non-federal partners to prevent introductions and contain incipient infestations of zebra, quagga, and golden mussels.
You may also submit comments via email to NEPANWW@usace.army.mil and inserting “Invasive Mussels” into the subject line.
How can I comment?
The 30-day public comment period starts on June 22, 2026, and concludes on August 3, 2026. Comments must be postmarked or emailed no later than August 3, 2026, to be considered as part of the public record.
- Submit comments online using the comment box on the project’s webpage or email: NEPANWW@usace.army.mil
- Written comments may be mailed to:
U.S. Army Corps of Engineers, Walla Walla District
ATTN: CENWW-PPL-C-Invasive Mussels
201 N. 3rd Avenue
Walla Walla, WA 99362-1876
If you have questions or need additional information, please email or call John Hook, Biologist, at 509- 263-1013 or john.d.hook@usace.army.mil.