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The Oregon Health Authority is encouraging people in the Lower Umatilla Basin Groundwater Management Area to get their well water retested for nitrates for free, even those who tested it in 2023.

According to a press release from OHA, retesting households with well water close to the health action level of 10 milligrams nitrate per liter of water is especially important because nitrate levels can fluctuate during different seasons of the year.

Original Article: Source