New Hampshire halves amount of arsenic allowed in water
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A New Hampshire bill that cuts by half the level of arsenic allowed in the public water supply has been signed into law.
The bill, signed Friday, lowers the maximum amount of arsenic allowed in public water to 5 parts per billion.
New Hampshire’s Department of Environmental Services had been enforcing a limit of 10 parts per billion, which was established by the U.S. Environmental Protection Agency in 2006.