The US Department of Interior has settled out of court, paying a Montana water district $1-million as the result of arsenic that has come out of Yellowstone National Park into its system. That settlement brings an end to the 2018 lawsuit filed by the Gardiner/Park County Water and Sewer District over high levels of arsenic found in the district’s sewage ponds. The Bozeman Daily Chronical reports that the concentration has led to a very expensive mitigation by the district. The judge dismissed the case since the settlement had been already made. The source of the arsenic was naturally occurring, although the lawsuit claimed the increased arsenic was from leaky pipes delivering wastewater from the park’s headquarters at Mammoth Hot Springs.
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