State Contracts for PFAS Analytical Services

Closure of Saint-Gobain Performance Plastics Variance Petition Public Hearing

On Wednesday August 19, 2020, shortly after 3:00 p.m., the NHDES Air Resources Division took the Public Hearing on a Variance Petition for Saint-Gobain Performance Plastics Corporation, that was conducted on August 5, 2020, out of recess. NHDES provided a brief status update and announced the closure of the Public Hearing. A recording of the Read More

State Contracts for PFAS Analytical Services

Recording of the Public Hearing Regarding the Saint-Gobain Variance Petition – Open for Comment Until 8/12

NHDES conducted a virtual public hearing on August 5, 2020 to solicit comments on the Saint-Gobain Performance Plastics variance petition. In anticipation of potential technical issues or the fact that an electronic hearing format is new and may provide an obstacle for some people to access, NHDES is keeping the public record open for written Read More

State Contracts for PFAS Analytical Services

“PFAS and Health”: A Free Information Session for Southern NH

A free information session about per- and polyfluoroalkyl substances (PFAS) and health from state and national experts will be held tonight,  Wednesday, November 20, 2019 from 5:30 – 8:00 p.m. at Merrimack High School, 38 McElwain Street, Merrimack, NH. Speaking at the event will be: Benjamin Chan, MD, MPH, NH State Epidemiologist, Division of Public Read More

State Contracts for PFAS Analytical Services

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

State Contracts for PFAS Analytical Services

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

State Contracts for PFAS Analytical Services

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

State Contracts for PFAS Analytical Services

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

State Contracts for PFAS Analytical Services

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

State Contracts for PFAS Analytical Services

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

State Contracts for PFAS Analytical Services

Dye Test at Stormwater Outfall on Merrimack River (Third Post in a Series)

          (This post is the third in a series describing the Site Investigation activities that are taking place or will be in the areas around the Saint-Gobain facility.) Stormwater from the Saint-Gobain facility is conveyed in underground piping and discharges to the Merrimack River at a stormwater outfall east of the Read More