9-chlorohexadecafluoro-3-oxanone-1-sulfonic acid (9Cl-PF3ONS)
Devens Massdevelopment
9-chlorohexadecafluoro-3-oxanone-1-sulfonic acid (9Cl-PF3ONS) is a member of a group of perfluorinated chemicals used in many consumer products. 9Cl-PF3ONS and other perfluorinated chemicals can cause serious health effects, including cancer, endocrine disruption, accelerated puberty, liver and immune system damage, and thyroid changes. These chemicals are persistent in the environment and they accumulate in people. Click here to read more about perfluorinated chemicals.
Samples
Samples exceeding legal limit (MCL)
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2018 | N/A | 0 | 0 | N/A |
| 2019 | ND | 25 | 0 | ND |
| 2020 | N/A | 0 | 0 | N/A |
| 2021 | ND | 173 | 0 | ND |
| 2022 | 0.00600 ppt | 171 | 1 | ND - 1.10 ppt |
| 2023 | ND | 129 | 0 | ND |
ppt = parts per trillion
State, National, and Health Guidelines for Drinking Water
EWG Health Guideline: 1 ppt
The EWG Health Guideline of 1 ppt for 9Cl-PF3ONS was defined by EWG as based on studies by Phillipe Grandjean of Harvard University and many other independent researchers who found reduced effectiveness of vaccines and adverse impacts on mammary gland development from exposure to PFOA and PFOS, the two PFAS most widely detected in drinking water.
ppt = parts per trillion
All test results
| Date | Result |
|---|---|
| 2019-08-20 | ND |
| 2019-08-20 | ND |
| 2019-09-03 | ND |
| 2019-09-03 | ND |
| 2019-09-18 | ND |
| 2019-09-18 | ND |
| 2019-09-25 | ND |
| 2019-10-02 | ND |
| 2019-10-02 | ND |
| 2019-10-09 | ND |
| 2019-10-15 | ND |
| 2019-10-15 | ND |
| 2019-10-23 | ND |
| 2019-10-30 | ND |
| 2019-10-30 | ND |
| 2019-11-06 | ND |
| 2019-11-13 | ND |
| 2019-11-13 | ND |
| 2019-11-20 | ND |
| 2019-11-25 | ND |
| 2019-11-25 | ND |
| 2019-12-04 | ND |
| 2019-12-18 | ND |
| 2019-12-23 | ND |
| 2019-12-23 | ND |
| 2021-02-03 | ND |
| 2021-02-03 | ND |
| 2021-02-03 | ND |
| 2021-02-03 | ND |
| 2021-02-03 | ND |
| 2021-02-03 | ND |
| 2021-02-03 | ND |
| 2021-02-03 | ND |
| 2021-02-03 | ND |
| 2021-02-03 | ND |
| 2021-02-03 | ND |
| 2021-02-17 | ND |
| 2021-02-17 | ND |
| 2021-02-17 | ND |
| 2021-02-24 | ND |
| 2021-02-24 | ND |
| 2021-02-24 | ND |
| 2021-02-24 | ND |
| 2021-02-24 | ND |
| 2021-02-24 | ND |
| 2021-02-24 | ND |
| 2021-03-02 | ND |
| 2021-03-02 | ND |
| 2021-03-02 | ND |
| 2021-03-02 | ND |
| 2021-03-02 | ND |
| 2021-03-02 | ND |
| 2021-03-02 | ND |
| 2021-03-02 | ND |
| 2021-03-02 | ND |
| 2021-03-10 | ND |
| 2021-03-10 | ND |
| 2021-03-10 | ND |
| 2021-03-10 | ND |
| 2021-03-10 | ND |
| 2021-03-10 | ND |
| 2021-03-10 | ND |
| 2021-03-17 | ND |
| 2021-03-17 | ND |
| 2021-03-17 | ND |
| 2021-03-24 | ND |
| 2021-03-24 | ND |
| 2021-03-24 | ND |
| 2021-03-24 | ND |
| 2021-03-24 | ND |
| 2021-03-24 | ND |
| 2021-03-24 | ND |
| 2021-03-31 | ND |
| 2021-03-31 | ND |
| 2021-03-31 | ND |
| 2021-03-31 | ND |
| 2021-04-08 | ND |
| 2021-04-08 | ND |
| 2021-04-08 | ND |
| 2021-04-08 | ND |
| 2021-04-19 | ND |
| 2021-06-02 | ND |
| 2021-06-02 | ND |
| 2021-06-02 | ND |
| 2021-06-02 | ND |
| 2021-06-02 | ND |
| 2021-06-02 | ND |
| 2021-06-02 | ND |
| 2021-06-09 | ND |
| 2021-06-09 | ND |
| 2021-06-09 | ND |
| 2021-06-16 | ND |
| 2021-06-16 | ND |
| 2021-06-16 | ND |
| 2021-06-16 | ND |
| 2021-06-16 | ND |
| 2021-06-23 | ND |
| 2021-06-23 | ND |
| 2021-06-23 | ND |
| 2021-06-23 | ND |
| 2021-06-23 | ND |
| 2021-07-07 | ND |
| 2021-07-07 | ND |
| 2021-07-07 | ND |
| 2021-07-07 | ND |
| 2021-07-07 | ND |
| 2021-07-07 | ND |
| 2021-07-07 | ND |
| 2021-07-07 | ND |
| 2021-07-07 | ND |
| 2021-07-07 | ND |
| 2021-07-07 | ND |
| 2021-07-07 | ND |
| 2021-07-07 | ND |
| 2021-07-07 | ND |
| 2021-07-14 | ND |
| 2021-07-14 | ND |
| 2021-07-14 | ND |
| 2021-07-14 | ND |
| 2021-07-14 | ND |
| 2021-07-14 | ND |
| 2021-07-21 | ND |
| 2021-07-21 | ND |
| 2021-07-21 | ND |
| 2021-07-21 | ND |
| 2021-07-21 | ND |
| 2021-07-28 | ND |
| 2021-07-28 | ND |
| 2021-07-28 | ND |
| 2021-07-28 | ND |
| 2021-07-28 | ND |
| 2021-07-28 | ND |
| 2021-07-28 | ND |
| 2021-08-05 | ND |
| 2021-08-05 | ND |
| 2021-08-05 | ND |
| 2021-08-05 | ND |
| 2021-08-11 | ND |
| 2021-08-11 | ND |
| 2021-08-11 | ND |
| 2021-08-11 | ND |
| 2021-08-11 | ND |
| 2021-08-11 | ND |
| 2021-08-11 | ND |
| 2021-08-18 | ND |
| 2021-08-18 | ND |
| 2021-08-18 | ND |
| 2021-08-18 | ND |
| 2021-08-18 | ND |
| 2021-08-25 | ND |
| 2021-08-25 | ND |
| 2021-08-25 | ND |
| 2021-08-25 | ND |
| 2021-08-25 | ND |
| 2021-08-25 | ND |
| 2021-08-25 | ND |
| 2021-09-08 | ND |
| 2021-09-08 | ND |
| 2021-09-08 | ND |
| 2021-09-08 | ND |
| 2021-09-08 | ND |
| 2021-09-08 | ND |
| 2021-09-08 | ND |
| 2021-10-06 | ND |
| 2021-10-06 | ND |
| 2021-10-06 | ND |
| 2021-10-06 | ND |
| 2021-10-06 | ND |
| 2021-10-06 | ND |
| 2021-10-06 | ND |
| 2021-10-06 | ND |
| 2021-10-06 | ND |
| 2021-10-06 | ND |
| 2021-10-06 | ND |
| 2021-10-06 | ND |
| 2021-10-06 | ND |
| 2021-10-06 | ND |
| 2021-10-06 | ND |
| 2021-10-06 | ND |
| 2021-10-06 | ND |
| 2021-10-06 | ND |
| 2021-10-06 | ND |
| 2021-10-06 | ND |
| 2021-12-02 | ND |
| 2021-12-02 | ND |
| 2021-12-02 | ND |
| 2021-12-02 | ND |
| 2021-12-02 | ND |
| 2021-12-02 | ND |
| 2021-12-02 | ND |
| 2021-12-08 | ND |
| 2021-12-08 | ND |
| 2021-12-08 | ND |
| 2021-12-08 | ND |
| 2021-12-08 | ND |
| 2021-12-08 | ND |
| 2021-12-08 | ND |
| 2021-12-08 | ND |
| 2022-01-05 | ND |
| 2022-01-05 | ND |
| 2022-01-05 | ND |
| 2022-01-05 | ND |
| 2022-01-05 | ND |
| 2022-01-05 | ND |
| 2022-01-05 | ND |
| 2022-01-05 | ND |
| 2022-01-05 | ND |
| 2022-01-12 | ND |
| 2022-01-12 | ND |
| 2022-01-12 | ND |
| 2022-01-12 | ND |
| 2022-01-12 | ND |
| 2022-01-12 | ND |
| 2022-01-12 | ND |
| 2022-01-12 | ND |
| 2022-02-02 | ND |
| 2022-02-02 | ND |
| 2022-02-02 | ND |
| 2022-02-02 | ND |
| 2022-02-02 | ND |
| 2022-02-02 | ND |
| 2022-02-02 | ND |
| 2022-02-02 | ND |
| 2022-02-09 | ND |
| 2022-02-09 | ND |
| 2022-02-09 | ND |
| 2022-02-09 | ND |
| 2022-02-09 | ND |
| 2022-02-09 | ND |
| 2022-02-09 | ND |
| 2022-03-09 | ND |
| 2022-03-09 | ND |
| 2022-03-09 | ND |
| 2022-03-09 | ND |
| 2022-03-09 | ND |
| 2022-03-09 | ND |
| 2022-03-09 | ND |
| 2022-03-09 | ND |
| 2022-03-16 | ND |
| 2022-03-16 | ND |
| 2022-03-16 | ND |
| 2022-03-16 | ND |
| 2022-03-16 | ND |
| 2022-03-16 | ND |
| 2022-03-16 | ND |
| 2022-04-13 | 1.10 ppt |
| 2022-04-13 | ND |
| 2022-04-13 | ND |
| 2022-04-13 | ND |
| 2022-04-13 | ND |
| 2022-04-13 | ND |
| 2022-04-13 | ND |
| 2022-04-13 | ND |
| 2022-04-19 | ND |
| 2022-04-19 | ND |
| 2022-04-19 | ND |
| 2022-04-19 | ND |
| 2022-04-19 | ND |
| 2022-04-19 | ND |
| 2022-04-19 | ND |
| 2022-05-04 | ND |
| 2022-05-04 | ND |
| 2022-05-04 | ND |
| 2022-05-04 | ND |
| 2022-05-04 | ND |
| 2022-05-04 | ND |
| 2022-05-04 | ND |
| 2022-05-04 | ND |
| 2022-05-16 | ND |
| 2022-05-16 | ND |
| 2022-05-16 | ND |
| 2022-05-16 | ND |
| 2022-05-16 | ND |
| 2022-05-16 | ND |
| 2022-05-16 | ND |
| 2022-05-27 | ND |
| 2022-05-27 | ND |
| 2022-06-08 | ND |
| 2022-06-08 | ND |
| 2022-06-08 | ND |
| 2022-06-08 | ND |
| 2022-06-08 | ND |
| 2022-06-08 | ND |
| 2022-06-08 | ND |
| 2022-06-08 | ND |
| 2022-06-14 | ND |
| 2022-06-14 | ND |
| 2022-06-14 | ND |
| 2022-06-14 | ND |
| 2022-06-14 | ND |
| 2022-06-14 | ND |
| 2022-06-14 | ND |
| 2022-07-13 | ND |
| 2022-07-13 | ND |
| 2022-07-13 | ND |
| 2022-07-13 | ND |
| 2022-07-13 | ND |
| 2022-07-20 | ND |
| 2022-07-20 | ND |
| 2022-07-20 | ND |
| 2022-07-20 | ND |
| 2022-07-20 | ND |
| 2022-07-20 | ND |
| 2022-08-03 | ND |
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| 2022-08-03 | ND |
| 2022-08-03 | ND |
| 2022-08-03 | ND |
| 2022-08-03 | ND |
| 2022-08-03 | ND |
| 2022-08-18 | ND |
| 2022-08-18 | ND |
| 2022-08-18 | ND |
| 2022-08-18 | ND |
| 2022-08-18 | ND |
| 2022-08-18 | ND |
| 2022-08-18 | ND |
| 2022-09-01 | ND |
| 2022-09-01 | ND |
| 2022-09-07 | ND |
| 2022-09-07 | ND |
| 2022-09-07 | ND |
| 2022-09-07 | ND |
| 2022-09-07 | ND |
| 2022-09-07 | ND |
| 2022-09-07 | ND |
| 2022-09-14 | ND |
| 2022-09-14 | ND |
| 2022-09-14 | ND |
| 2022-09-14 | ND |
| 2022-09-14 | ND |
| 2022-09-14 | ND |
| 2022-10-05 | ND |
| 2022-10-05 | ND |
| 2022-10-05 | ND |
| 2022-10-05 | ND |
| 2022-10-12 | ND |
| 2022-10-12 | ND |
| 2022-10-12 | ND |
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| 2022-10-12 | ND |
| 2022-10-12 | ND |
| 2022-10-12 | ND |
| 2022-11-02 | ND |
| 2022-11-02 | ND |
| 2022-11-02 | ND |
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| 2022-11-02 | ND |
| 2022-11-02 | ND |
| 2022-11-10 | ND |
| 2022-11-10 | ND |
| 2022-11-10 | ND |
| 2022-11-10 | ND |
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| 2022-11-10 | ND |
| 2022-11-10 | ND |
| 2022-12-07 | ND |
| 2022-12-07 | ND |
| 2022-12-07 | ND |
| 2022-12-07 | ND |
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| 2022-12-07 | ND |
| 2022-12-07 | ND |
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| 2022-12-07 | ND |
| 2022-12-07 | ND |
| 2022-12-07 | ND |
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| 2022-12-07 | ND |
| 2023-01-11 | ND |
| 2023-01-11 | ND |
| 2023-01-11 | ND |
| 2023-01-18 | ND |
| 2023-01-18 | ND |
| 2023-01-18 | ND |
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| 2023-02-14 | ND |
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| 2023-02-24 | ND |
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| 2023-03-01 | ND |
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| 2023-04-04 | ND |
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| 2023-04-19 | ND |
| 2023-04-19 | ND |
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| 2023-04-19 | ND |
| 2023-04-28 | ND |
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| 2023-05-03 | ND |
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| 2023-05-12 | ND |
| 2023-05-26 | ND |
| 2023-06-07 | ND |
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| 2023-06-09 | ND |
| 2023-06-23 | ND |
| 2023-07-07 | ND |
| 2023-07-11 | ND |
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| 2023-07-11 | ND |
| 2023-07-18 | ND |
| 2023-07-21 | ND |
| 2023-08-04 | ND |
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| 2023-08-08 | ND |
| 2023-08-18 | ND |
| 2023-09-01 | ND |
| 2023-09-01 | ND |
| 2023-09-19 | ND |
| 2023-09-19 | ND |
| 2023-09-19 | ND |
| 2023-09-19 | ND |
| 2023-09-19 | ND |
| 2023-09-19 | ND |
| 2023-09-29 | ND |
| 2023-09-29 | ND |
| 2023-10-04 | ND |
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| 2023-10-13 | ND |
| 2023-10-19 | ND |
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| 2023-10-27 | ND |
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| 2023-11-07 | ND |
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| 2023-11-09 | ND |
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| 2023-12-08 | ND |
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| 2023-12-22 | ND |
| 2023-12-22 | ND |