Does MassDEP have a program to support private (domestic) well testing?

MassDEP and UMass conducted free PFAS testing for a limited number of private wells, focusing on Massachusetts towns where 60% or more of residents are served by private wells.  Nantucket was included in this sampling and testing program performed in 2021. 

MassDEP selected the wells that were sampled based on priority factors including geographic distribution throughout the town, proximity to potential sources of PFAS, and available funding.

Fourty-one private wells were sampled.  Testing results have been posted by MassDEP   (scroll down the webpage to “PFAS Testing in Private Wells” for map and results. 

MassDEP PFAS drinking water standard MCL is 20 ppt for what the regulations call PFAS6, or the sum of six PFAS: perfluorooctanesulfonic acid (PFOS), perfluorooctanoic acid (PFOA), perfluorohexane sulfonic acid (PFHxS), perfluorononanoic acid (PFNA), perfluoroheptanoic acid (PFHpA), and perfluorodecanoic acid (PFDA), (

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1. Are there public drinking water standards concerning PFAS?
2. Does MassDEP have a program to support private (domestic) well testing?
3. Does the aquifer that the Island gets groundwater from have PFAS in it?
4. Can I hook up to public water? If Yes, how?
5. Are septic systems or private wastewater treatment within a Zone II aquifer wellhead protection area regulated for PFAS? If so, how?
6. Who is available to perform PFAS Sampling & Testing?
7. Can PFAS drinking water or soil standards be applied to leachate or co-compost?
8. Are private (domestic) wells located below (downgradient of) the landfill impacted by PFAS?
9. Is there a plan to collect PFAS samples from the Wastewater Treatment Facility (WWTF) and landfill site?
10. Did Waste Options perform PFAS testing at the landfill in the summer of 2019?
11. Even though 2019 PFAS testing was done with an imperfect method at the time (EPA 537), were the results found concerning?
12. What were the results of the testing of private wells that were sampled by MassDEP/UMass?