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New Hampshire Department of Environmental Services

Road Salt Reduction

Dramatic and rising concentrations of chloride from road salt have been identified in New Hampshire waters and mirror a trend that is being seen in colder regions of the US and Canada due to the application of de-icing chemicals. In 2008 New Hampshire listed 19 chloride-impaired water bodies on the 303(d) list under the Clean Water Act. In 2012 that number increased to 46. At concentrations exceeding 230 mg/l chloride can be toxic to some aquatic species, and can impart a salty taste in drinking water supplies. more...

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NHDES Salt Reduction Program
(603) 271-5329



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NH Department of Environmental Services | 29 Hazen Drive | PO Box 95 | Concord, NH 03302-0095
(603) 271-3503 | TDD Access: Relay NH 1-800-735-2964 | Hours: M-F, 8am-4pm

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