New limits for chemicals in New Hampshire drinking water
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New limits are now in effect for a class of toxic chemicals in New Hampshire’s public drinking water supplies, representing some of the nation’s toughest standards.
New Hampshire Public Radio reports the standards, which took effect Tuesday, require local water utilities to test for four types of the compounds known as per- and polyfluoroalkyl substances every quarter. If they find a level over the next year that’s above the state’s new limits, these utilities will have to switch to a different water source or develop costly treatment systems.