WEIPPE, Idaho – The U.S. Army Corps of Engineers’ Walla Walla District issued a Finding of No Significant Impact (FONSI) on July 11, 2018, for the City of Weippe, Idaho, Wastewater Collection and Treatment System Improvements Project.
The Corps plans to assist the city with upgrades to their municipal water system. The city’s proposed action is to rehabilitate aged pipes and address lagoon leaks to minimize infiltration and inflow entering the system and exfiltration of sewer from the system. The proposed project also includes upgrades to the city’s treatment facilities to improve operations. The Corps is not assisting the city with the entire proposed project.
The Corps and the city have agreed the Corps would fund project engineering, any non-reimbursable costs incurred by the Corps, the Corps’ archaeological monitoring, the Corps’ environmental review, and sewer collection system materials. The Corps’ funding would be used to repair/replace existing sewer system pipes and appurtenances, install wastewater flow measurement devices, modify wastewater control systems, replace the chlorine disinfection system, and install a system failure alarm. The Corps participation in this project is authorized under Section 595 of the Water Resources Development Act of 1999.
A public review and comment period was conducted June 13-27, 2018. All information and comments submitted are included in the public record. The Corps’ signed FONSI, EA and related documents are available on the Walla Walla District website at
www.nww.usace.army.mil/Missions/Environmental-Compliance.
If you have questions, call the Corps’ Environmental Coordinator at 509-527-7256.
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Release no. 18-076