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New Hampshire Department of Environmental Services
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Groundwater Reclassification Program

There are four classes of groundwater in New Hampshire as outlined in the NH Groundwater Protection Act, RSA 485-C. Initially, all groundwater in New Hampshire was classified as GB or GA2, the two lowest classifications in terms of protection. Groundwater reclassification designates an area of groundwater for a higher level of protection (GAA or GA1) because it contributes groundwater to a public water supply or represents an area of high value groundwater for present or future water supply.

Groundwater reclassification is a process that involves both the local entity - a water supplier or municipality - and the NH Department of Environmental Services. Through this process, a local entity would inventory and manage potential contamination sources through education and inspections. Reclassification provides the local entity with the authority to enforce BMP rules in the protected area.

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  • Pierce Rigrod
    NHDES Drinking Water & Groundwater Bureau
    29 Hazen Drive; PO Box 95
    Concord, NH 03302-0095
    (603) 271-0688
    (603) 271-0656 (fax)
    pierce.rigrod@des.nh.gov
  • Paul Susca
    NHDES Drinking Water & Groundwater Bureau
    29 Hazen Drive; PO Box 95
    Concord, NH 03302-0095
    (603) 271-7061
    (603) 271-0656 (fax)
    paul.susca@des.nh.gov

 

 

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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

copyright 2014. State of New Hampshire