PFAS
PFAS Filters are Online at Mill Pond
8/2/2023
On July 20th, the new PFAS filters at the Mill Pond treatment plant were placed online. After sending the water out for testing, the lab results have come back and show our PFAS levels at 0 parts per trillion. We thank you for your patience throughout the duration of this project.
Our Vinebrook Treatment Facility, which does not pump water into the Town’s water system for distribution, will continue to show levels above the state standards. This facility will remain offline until it is formally decommissioned.
The two methods of testing and lab results can be found here Version Options PFAS HeadlinePFAS Filters are Online at Mill PondExplanation of Quarterly Public Notice and here.
Explanation of Quarterly Public Notice
The quarterly public notice is required to be sent to residents within 30 days of a PFAS violation. The notice states, that based on our first two months of PFAS sampling and monitoring, even if the third month results were zero (0), our quarterly average would not be within in compliance of the 20 parts per trillion (ppt) maximum contaminant level (MCL).
Based on this, when the average of month one + month two + zero is greater than the MCL of 20 ppt, we are already placed in violation by MassDEP by the end of month two. The public notice pamphlet is then generated and sent prior to the results of month three being completed since the notice has to be sent within 30 days of violation.
Please refer to the example tables below for reference.
Example One
Month One | 35.4 ppt |
Month Two | 36.7 ppt |
Month Three | 0 ppt |
Example Two
Month One | 18 ppt |
Month Two | 21 ppt |
Month Three | 24 ppt |
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Russ Makiej
Water Treatment Plant ManagerPhone: 781-270-1648
Related Documents
- 2020 Water Quality Report
- 2021 PFAS Sampling Notice
- Bottled Water Tested for PFAS
- PFAS Fact Sheet
- PFAS Lab Results 7.21.23_533
- PFAS Lab Results 7.21.23_537.1
- PFAS Press Release_5.19.21
- PFAS Project Signage - MassDEP
- PFAS Report - August 2021
- PFAS Report - December 2021
- PFAS Report - December 2022
- PFAS Report - July 2021
- PFAS Report - July 2023
- PFAS Report - June 2022
- PFAS Report - March 2022
- PFAS Report - March 2023
- PFAS Report - September 2022
- PFAS6 Public Education & Notification
- PFAS6 Results as of 4.20.23
- September Town Meeting 2021 PFAS
Town to Test for PFAS Compounds
- Click here Town to Test for PFAS Compounds Town to Test for PFAS Compounds Town to Test for PFAS Compounds for more information about PFAS and the testing procedure
- Please read the press release from 5/19/2021 for the results of our PFAS testing
- Click here Town to Test for PFAS Compounds Town to Test for PFAS Compounds Town to Test for PFAS Compounds for a YouTube video where the DPW Director explains the current drinking water situation
- For additional information on PFAS, please visit the DEP website, read this PFAS fact sheet, watch the May 24th Select Board meeting (start at 33:15), or watch the June 22nd special Board of Health meeting
- Please read the press release from 8/2/2023 for the results of our PFAS sampling post filter installation