Chemical Spill Into Montana River Spurs Water Watch

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Chemical Spill Into Montana River Spurs Water Watch

BILLINGS, Mont. (AP) - Montana authorities are monitoring downstream water supplies after a chemical spill into a Yellowstone River tributary near the Wyoming border. Carbon County emergency coordinator Darrel Krum said Tuesday that an estimated 7,000 gallons of salt used for deicing roads spilled when a semi-trailer crashed on a bridge over the Clarks Fork River south of Belfry.

That's an increase from the initial estimate of 5,000 gallons spilled after Monday's crash. Krum says the magnesium chloride spill is still small enough that dilution with river water should minimize problems. It can cause eye and lung irritation and vomiting, but is not considered highly hazardous. Krum says there have been no further reports of fish kills since about two dozen dead fish were found at the crash site Monday.

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