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New Hampshire Department of Environmental Services
PUBLIC GOVERNMENT BUSINESS A to Z LIST

Emergency Phone Numbers
To report spills and other environmental emergencies, call the appropriate emergency response number during normal working hours (8:00 am - 4:00 pm, Monday - Friday). All other times, nights-weekends-holidays, contact DES via the NH State Police at (603) 223-4381.

Reporting a Spill

Dam Failures

NHDES Dam Program – (603) 271-3406
All other times, nights-weekends-holidays, contact DES via the NH State Police at (603) 223-4381.

Toxic Air Releases

NH Air Programs – (603) 271-1370

Water Supplies

NHDES Drinking Water and Groundwater Bureau – (603) 271-2513
All other times, nights-weekends-holidays, contact DES via the NH State Police at (603) 223-4381.

Wastewater Treatment Plant Operations

NHDES Wastewater Engineering Bureau – (603) 271-2001

Lake Issues

NHDES Limnology Center – (603) 271-3414 (weekdays) or (603) 419-9325 (weekends)




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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