New Hampshire Characteristic Waste regulations & environmental compliance analysis

New Hampshire Characteristic Waste: What you need to know

Governing Law and Regulations

Characteristics of hazardous waste: New Hampshire Regulations Environmental-Hazardous Waste (NH Regs. Env-Hw) 403.01 to 403.06

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Listed hazardous waste: NH Regs. Env-Hw 402.01 to 402.07

Corrosivity characteristic: NH Regs. Env-Hw 403.04

Regulatory Agency

New Hampshire Department of Environmental Services (DES) Waste Management Division Hazardous Waste Management Bureau Hazardous Waste Compliance Section

See national section for basic information and federal regulations.

Comparison: State vs. Federal.

Rules. New Hampshire follows the federal rules for determining whether a waste exhibits a hazardous waste characteristic. See the national section CHARACTERISTIC WASTE for more information. However, to determine the characteristics of corrosivity, the New Hampshire Department of Environmental Services (DES) has added a state criterion to those specified under the federal rules.

Wastes may be classified as hazardous because of their characteristics or if they have been placed on hazardous waste lists by the U.S. Environmental Protection Agency (EPA). See the state sections HAZARDOUS WASTE DETERMINATION and LISTED WASTES for more information.

Administration and enforcement. The DES Hazardous Waste Compliance Section administers and enforces the state's rules for determining characteristic hazardous wastes.

State Requirements


NH Regs. Env-Hw 403.04

New Hampshire follows the federal rule at 40 CFR 261.22 that identifies the characteristic of corrosivity in a waste if a representative sample of the waste has either of these properties:

  • It is aqueous and has a pH of less than or equal to 2 or greater than or equal to 12.5 as determined by a pH meter using either method 9040 in ...

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New Hampshire Characteristic Waste Resources

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