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.
Slides for upcoming PFAS MCL work sessions
NHDES is holding several work sessions next week related to setting public drinking water (MCLs) and groundwater standards (AGQS) for the following Per- and Polyfluoroalkyl Substances (PFASs): PFOA, PFOS, PFNA and PFHxS. Here are the slides that will be discussed at the meetings: PFAS MCL Work Session Slides The meeting announcement and schedule can be found here: https://www.des.nh.gov/media/pr/2018/20181003-pfas-meetings.htm
October 10, Merrimack Public Info Meeting Video, Slides and Posters
If you were unable to attend the NHDES Public Information Meeting in Merrimack on October 10, below are links to the video of the meeting, as well as, the slides presented and various posters that were at the meeting. Video of the meeting (link to MerrimackTV on YouTube) October 10, Merrimack Public Info Meeting Slides Read More
Sampling at Other Properties (Eighth Post in a Series)
(This post is the eighth in a series describing the Site Investigation activities that are taking place or will be in the areas around the Saint-Gobain facility.) A preliminary Groundwater Management Zone (GMZ) was outlined in the March 2017 Consent Decree between Saint-Gobain and the State of New Hampshire. This preliminary boundary is based on Read More
Agenda for Oct. 10 Public Information Meeting in Merrimack
Agenda Public Information Meeting Wednesday, October 10, 2018 – 6:30 PM James Mastricola Upper Elementary School (JMUES) All-Purpose Room 26 Baboosic Lake Road, Merrimack, NH Welcome – 5 minutes, Lynn Christensen, Town Moderator NHDES Update – 15 minutes, Clark Freise, Asst. Commissioner, NHDES MVD Update – 10 minutes, Mike Metcalf and Keith Pratt, Underwood Engineering, Read More
Stormwater System Improvements Planned at Saint-Gobain Facility (Seventh post in a Series)
(This post is the seventh in a series describing the Site Investigation activities that are taking place or will be in the areas around the Saint-Gobain facility.) Stormwater generated at the Saint-Gobain facility is collected in a below ground piping network and discharged at an outfall on the Merrimack River. Water has been observed discharging Read More
Release: NHDES to Hold Stakeholder and Technical Work Sessions on Setting Public Drinking Water Standards for PFOA, PFOS, PFNA, & PFHxS
News from the New Hampshire Department of Environmental Services FOR IMMEDIATE RELEASE DATE: October 3, 2018 CONTACT: Jim Martin, (603) 271-3710 NHDES to Hold Stakeholder and Technical Work Sessions Setting Public Drinking Water and Groundwater Standards for PFOA, PFOS, PFNA, & PFHxS Concord, NH – The New Hampshire Department of Environmental Services (NHDES) will Read More
Dust Accumulating on Exterior of Condo Complex Tested for PFAS (Sixth Post in a Series)
(This post is the sixth in a series describing the Site Investigation activities that are taking place or will be in the areas around the Saint-Gobain facility.) NHDES representatives sampled a gray soot-like substance accumulating on exterior window sills and thresholds of the Webster Green Condominiums in Merrimack, NH on April 12, 2018. Analytical results Read More
NHDES Notifies Saint-Gobain Performance Plastics to Install Controls on Air Emissions
News from the New Hampshire Department of Environmental Services FOR IMMEDIATE RELEASE DATE: October 1, 2018 CONTACT: James Martin, (603) 271-3710 des.nh.gov twitter.com/NHDES NHDES Notifies Saint-Gobain Performance Plastics to Install Controls on Air Emissions CONCORD, NH – The New Hampshire Department of Environmental Services (NHDES) announced today that it has instructed Saint-Gobain Performance Read More
Fish Tissue Sampling Requested Around Saint-Gobain Facility (Fifth Post in a Series)
(This post is the fifth in a series describing the Site Investigation activities that are taking place or will be in the areas around the Saint-Gobain facility.) Based on discussions with NH Fish and Game, NHDES understands that Dumpling Brook (located south of the Saint-Gobain facility) is considered a “high-quality wild brook trout stream” due Read More
Elevated Levels of PFAS in Stormwater at the Saint-Gobain Facility (Fourth Post in a Series)
(This post is the fourth in a series describing the Site Investigation activities that are taking place or will be in the areas around the Saint-Gobain facility.) Testing completed in 2017 indicated the presence of PFAS in stormwater generated at the Saint-Gobain facility and in samples collected from nearby surface water bodies. Saint-Gobain is completing Read More