WASHINGTON, April 22 (TNSLrpt) -- The U.S. Geological Survey issued an Open-File Report 20261005 detailing the sampling and analysis plan for water quality in Lake Koocanusa and upper Kootenai River, Montana. Authors Lindsey King, Sara Caldwell Eldridge, Melissa Schaar, Travis Schmidt, Thomas Chapin, and Ashley Bussell prepared it for water years 2022 and 2023. Published in 2026, the plan supports monitoring selenium, nitrates, and sulfates exceeding standards, linked to Canadian coal mines.