Salem Requests U.S. Army Corps to Enhance Water Protection During Detroit Lake Drawdown in 2026
Salem officials have requested the U.S. Army Corps of Engineers to enhance water protection measures during the planned drawdown of Detroit Reservoir in late 2026, aimed at aiding salmon migration. Concerns have been raised regarding the absence of turbidity monitoring triggers that could impact the city's drinking water filtration system, which serves about 200,000 residents. Meanwhile, Marion County officials are pushing for a comprehensive turbidity report, as the Corps awaits Congressional appropriations for the necessary authorization.
Salem officials have urged the U.S. Army Corps of Engineers to implement additional measures to safeguard the city's drinking water during the planned drawdown of Detroit Reservoir in late 2026, which aims to support salmon migration.
Although the Corps' plan includes a drawdown starting in late November or early December for a two-week duration, city leaders expressed concerns about the lack of turbidity triggers to monitor water clarity, which could affect the filtration system serving approximately 200,000 residents. In July 2025, Salem declared a state of emergency to facilitate preparations, including new groundwater wells.
Meanwhile, Marion County officials have called for a comprehensive turbidity report required by federal law, while the Corps has acknowledged authorization for the report but awaits Congressional appropriations. A final study on the drawdown is expected in spring 2026.




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