PFAS-credentialed compliance consultants that serve New Hampshire. Listings include both firms headquartered in New Hampshire and out-of-state firms with active New Hampshire project coverage. See the New Hampshire compliance page for contamination data and regulatory deadlines that drive this work.
New Hampshire-based environmental engineering firm with active PFAS site characterization and remedial design work across New England. Provides PFAS treatment evaluation, groundwater modeling, and reg...
New England-based municipal engineering firm with a water practice supporting PFAS treatment design, UCMR-5 sampling, and MCL compliance for community water systems across ME, NH, VT, and MA.
Privately-held engineering firm with a deep municipal water practice. PFAS treatment evaluations, GAC and IX pilot studies, EC-SDC grant application support.
Environmental engineering and applied science firm widely recognized as a PFAS R&D thought leader. Leading work on in-situ treatment, colloidal activated carbon, and AFFF site characterization.
Water-focused engineering firm known nationally for PFAS treatment research and design. Led pilot work on GAC, IX, and RO for major utilities including OCWD and NYC DEP.
Employee-owned A/E firm with a national water practice that has designed PFAS treatment systems (GAC, IX, RO) for multiple U.S. utilities. Active in UCMR-5 sampling support and EPA MCL compliance plan...
Global testing, inspection, and certification firm. PFAS analytical services across drinking water, wastewater, soil, and food packaging matrices.
Hartford, Connecticut engineering firm with offices in New Haven and Providence. PFAS work includes the Eastern Connecticut Fire School AFFF investigation and a PFAS wastewater sampling protocol for a...
Northeast-focused geotechnical and environmental firm with established PFAS practice covering Massachusetts MCP and New Hampshire/Vermont/Maine state PFAS programs. Performs site investigation, remedi...
Global engineering and EPC firm with PFAS treatment design, site investigation, and regulatory advisory work across federal and municipal sectors.
Bennington, Vermont engineering firm with a Burlington office. Work includes PFAS mitigation at Hiland Hall School and a preliminary engineering report on PFAS-contaminated wells in south and northeas...
Employee-owned national geotechnical and environmental consulting firm with PFAS site assessment, Phase II investigation, and remedial design services. Active across DoD, industrial, and airport PFAS ...
Employee-owned engineering and environmental firm with a strong New England municipal water practice supporting PFAS treatment design, UCMR-5 sampling, and MCL compliance planning. Active across MA, N...
WSP acquired Wood's E&IS practice in 2022. Global PFAS investigation, AFFF site work, and treatment evaluation capabilities across federal and private-sector clients.
15 New Hampshire water systems tested above the EPA limit for PFOA or PFOS, 9 of them on average. The New Hampshire market brief (PDF plus a workbook with operator contacts) is a one-time $149 download. See a sample →