Governing Law and Regulations
New Hampshire Department of Environmental Services (DES) Water Division
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. Because New Hampshire does not have permitting authority under the federal National Pollutant Discharge Elimination System (NPDES), wastewater discharges must comply with both federal and state effluent guidelines. See the national section EFFLUENT LIMITATIONS and contact the New Hampshire Department of Environmental Services (DES) for more information.
New Hampshire must follow both federal and state water quality criteria. The state effluent standards are based on national effluent guidelines for various types of industry, or based on a case-by-case determination using "best professional judgment." DES will establish effluent limitations that represent the appropriate level of treatment technology. If effluent limitations are insufficient to meet water quality standards in the receiving stream, EPA may impose more stringent effluent limitations.
• Administration and ...