Welcome. This website will be used to update interested parties on NHDES’ current investigation into the presence of Per- and Polyfluoroalkyl Substances (PFASs) in New Hampshire. You can access our previous webpage for archived information: https://www.des.nh.gov/organization/commissioner/pfoa.htm.
New Information May Change NHDES Proposed PFAS Drinking Water Standards
New Information May Change NHDES Proposed PFAS Drinking Water Standards On December 31, 2018, the New Hampshire Department of Environmental Services (NHDES) initiated rulemaking to establish Maximum Contaminant Levels (MCLs) and Ambient Groundwater Quality Standards (AGQS) for four per- and polyfluoroalkyl substances (PFAS) – perfluorooctanoic acid (PFOA), perfluorooctanesulfonic acid (PFOS), perfluorononanoic acid (PFNA) and perfluorohexanesulfonic Read More
EPA to Announce First-Ever Comprehensive Nation Wide PFAS Action Plan
EPA Region 1 is hosting a Regional Press Conference to announce the Per- and Polyfluoroalkyl Substances (PFAS) Action Plan Action Plan. The event will be at 11:00am tomorrow, Thursday, February 14, 2019 at the New England Regional Laboratory. EPA Office of Chemical Safety and Pollution Prevention (OCSPP) Assistant Administrator – and former EPA New England Regional Read More
PFAS Rule Making Notice/Initial Proposal Submitting to Office of Legislative Service (Public Hearing and Public Comment Information)
The Rule Making Notice/Initial Proposal packages for the amendments to Env-Dw 700-800, Env-Or 603.03, and Env-Wq 402 re: PFAS were filed with OLS today. The RMNs should be in the Rulemaking Register published on Thursday, January 24, 2019. The notices and initial proposals are available on-line at: https://www.des.nh.gov/organization/commissioner/legal/rulemaking/index.htm#pdrinking https://www.des.nh.gov/organization/commissioner/legal/rulemaking/index.htm#poil https://www.des.nh.gov/organization/commissioner/legal/rulemaking/index.htm#pwaterq Public Hearing Dates: Monday, March Read More
Final Briefing Report: Review of the ATSDR Toxicological Profile for Perfluoroalkyls by Stephen M. Roberts, Ph.D.
This briefing report was prepared at the request of the New Hampshire Department of Environmental Services (NHDES) and provides information on specific topics identified by the Department. Much of the information in this briefing was obtained from review of the public comment draft report, Toxicological Profile for Perfluoroalkyls prepared by the Agency for Toxic Substances Read More
NHDES Report on PFAS MCL/AGQS Development
The summary report on the NHDES development of the Maximum Contaminant Levels and Ambient Groundwater Quality Standards for perfluorooctanesulfonic acid (PFOS), perfluorooctanoic acid (PFOA), perfluorononoic acid (PFNA) and perfluorohexanesulfonic acid (PFHxS) is available here: https://www.des.nh.gov/organization/commissioner/pip/publications/documents/r-wd-19-01.pdf The report provides the method by which NHDES derived the proposed Maximum Contaminant Levels (MCLs) and Ambient Groundwater Quality Standards Read More
Release: NHDES Proposes New PFAS Drinking Water Standards
News from the New Hampshire Department of Environmental Services FOR IMMEDIATE RELEASE DATE: January 2, 2019 CONTACT: Jim Martin, (603) 271-3710 NHDES Proposes New PFAS Drinking Water Standards Initiates Rulemaking for PFOA, PFOS, PFHxS and PFNA Concord, NH – On December 31, 2018, the New Hampshire Department of Environmental Services (NHDES) initiated rulemaking Read More
Results of Saint-Gobain, October 2018, on-site groundwater samples
Saint-Gobain submitted the first of several rounds of sample data collected as part the on-site investigation. Unvalidated laboratory analytical results of water samples collected from eight temporary monitoring wells (TMWs) in October 2018 can be viewed here: http://www4.des.state.nh.us/IISProxy/IISProxy.dll?ContentId=4749680 These data will be compiled in a report that will be submitted by Saint-Gobain’s consultant (tentatively scheduled Read More
South River Road Project –Construction Delay
South River Road Project –Construction Delay At the October 10, 2018 public meeting held in Merrimack, NH, a construction begin date of October 29, 2018 was communicated for the start of the South River Road Project. The contractor, Northeast Earth Mechanics, has been delayed with the completion of a previous project due to weather constraints. Read More
Draft reference list that is currently being used by the Health Risk Assessment (HRA) Team at NH-DES to develop MCL’s for PFOA, PFOS, PFHxS and PFNA.
Below is the draft reference list that is currently being used by the Health Risk Assessment (HRA) Team at NH-DES to develop MCL’s for PFOA, PFOS, PFHxS and PFNA. Draft PFAS Reference List as of 11-07-18 The draft list is comprised of references from: · Governmental documents on PFAS (e.g. ATSDR Draft Toxicological Profile, US EPA Read More
Saint-Gobain Stormwater Sample Data Submitted
Saint-Gobain recently submitted data for samples collected as part of the Stormwater and Surface Water Source Investigation. The submittal can be viewed here: http://www4.des.state.nh.us/IISProxy/IISProxy.dll?ContentId=4744493. [The blog post “Elevated Levels of PFAS in Stormwater at the Saint-Gobain Facility (Fourth Post in a Series)” posted on September 27, 2018, provides a general overview of the Stormwater Investigation Read More