Regulation ChangeLiveLive Regulation
New Hampshire Soil PFAS Site Remediation Standards Now in Effect
New Hampshire Soil PFAS Site Remediation StandardsNew Hampshire Department of Environmental ServicesNew Hampshire
Announced
Dec 1, 2025
Description
New Hampshire's soil PFAS site remediation standards are now in effect, establishing requirements for addressing PFAS contamination in New Hampshire-specific soils. When PFAS contamination in soil is found, responsible parties may be subject to 60-day reporting requirements, followed by potential requirements for additional investigation and remediation. The standards do not apply to contamination attributed solely to background conditions such as atmospheric deposition. Compliance teams involved in site investigation and remediation in New Hampshire should incorporate PFAS soil testing into their environmental assessment protocols.
Key Findings
New Hampshire Soil PFAS Site Remediation Standards Now in Effect
### Insights # New Hampshire’s New Soil PFAS Regulations Now in Effect GZA Staff ### At a Glance Blog [Environmental Site Investigation & Remediation](/services/environmental-site-investigation-remediation) As required by State law, the New Hampshire Department of Environmental Services (NHDES) has adopted soil remediation standards (SRS) for certain perfluoroalkyl and polyfluoroalkyl substances (PFAS), which are in