New Hampshire Drinking Water: What you need to know

Governing Law and Regulations

New Hampshire Safe Drinking Water Act, New Hampshire Revised Statutes Annotated (RSA) 485:1 to 485:60

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Surface water quality regulations: New Hampshire Regulations Environmental-Water Quality (NH Regs. Env-Wq) 1701 to 1709.01

Role of DES: RSA 485:1

Permits to operate: NH Regs. Environmental-Drinking Water (NH Regs. Env-Dw) 501.01 to 501.05

Backflow prevention: New Hampshire Regulations Environmental-Water Supply (NH Regs. Env-Ws) 364.01 and NH Regs. Env-Ws 364.02

Approved devices: NH Regs. Env-Ws 364.06

Secondary maximum contaminant levels (MCLs): NH Regs. Env-Dw 706.01

Operator certification: NH Regs. Env-Dw 502.01 to 502.25

Production wells:

Small production wells: NH Regs. Env-Dw 301.01 to 301.28

Large production wells: NH Regs. Env-Dw 302.01 to 302.31

Bottled water sources: NH Regs. Env-Dw 303.01 to 303.25

Drinking Water State Revolving Fund (DWSRF): NH Regs. Env-Dw 1101.01 to 1109.05

Regulatory Agencies

New Hampshire Department of Environmental Services (DES) Water Division Drinking Water and Groundwater Bureau

U.S. Environmental Protection Agency (EPA) Region 1

See ADDRESSES & CONTACTS for addresses and telephone numbers.

See national section for basic information and federal regulations.

Comparison: State vs. Federal

Rules. New Hampshire has been granted primacy by the U.S. Environmental Protection Agency (EPA) to administer the requirements under the federal Safe Drinking Water Act (SDWA). New Hampshire follows the federal rules for maximum contaminant levels (MCLs) in drinking water and has additional requirements for some specific compounds.

Administration and enforcement. The Drinking Water and Groundwater Bureau within the DES is responsible for administering and enforcing the drinking ...

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Governing Law and Regulations
Regulatory Agencies
Comparison: State vs. Federal
State Requirements

State Requirements

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New Hampshire Drinking Water Resources

Drinking Water Products

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