Know Your Environment. Protect Your Health.

Perfluorohexane sulfonate (PFHXS)

South Grafton Water District

Perfluorohexane sulfonate is a member of a group of perfluorinated chemicals used in many consumer products. 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.

 

41

Samples

0

Samples exceeding legal limit (MCL)

15

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018N/A00N/A
2019N/A00N/A
2020N/A00N/A
20210.357 ppt72ND - 1.28 ppt
20220.637 ppt176ND - 3.58 ppt
20230.345 ppt177ND - 1.06 ppt

ppt = parts per trillion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 0.001 ppt

The EWG Health Guideline of 0.001 ppt for perfluorohexane sulfonate was defined by EPA's toxicity value published in the Integrated Risk Information System's toxicological review. This health guideline harm to the developing immune system.

EPA Maximum Contaminant
Level (MCL): 10 ppt

ppt = parts per trillion

All test results

Date Result
2021-10-28ND
2021-10-281.22 ppt
2021-10-28ND
2021-10-28ND
2021-12-07ND
2021-12-071.28 ppt
2021-12-07ND
2022-01-13ND
2022-01-13ND
2022-01-131.18 ppt
2022-01-130.682 ppt
2022-04-08ND
2022-04-08ND
2022-04-08ND
2022-04-08ND
2022-04-08ND
2022-04-08ND
2022-07-07ND
2022-07-071.23 ppt
2022-07-07ND
2022-10-120.723 ppt
2022-10-12ND
2022-10-123.58 ppt
2022-11-083.43 ppt
2023-01-240.739 ppt
2023-01-241.01 ppt
2023-02-270.782 ppt
2023-03-28ND
2023-04-250.920 ppt
2023-04-25ND
2023-05-16ND
2023-06-271.06 ppt
2023-07-26ND
2023-07-260.707 ppt
2023-08-22ND
2023-09-19ND
2023-10-20ND
2023-10-20ND
2023-11-21ND
2023-11-21ND
2023-12-120.640 ppt