Know Your Environment. Protect Your Health.

Perfluorohexanoic Acid (PFHxA)

Petersburgh Water District

Perfluorohexanoic acid 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.

 

34

Samples

0

Samples exceeding legal limit (MCL)

18

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018N/A00N/A
2019N/A00N/A
2020N/A00N/A
20213.10 ppt113.10 ppt
20221.46 ppt105ND - 3.50 ppt
20231.50 ppt2316ND - 4.20 ppt

ppt = parts per trillion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 1,000 ppt

The EWG Health Guideline of 1,000 ppt for perfluorohexanoic acid was defined by EPA's toxicity value published in the Integrated Risk Information System's toxicological review. This health guideline protects against harm to fetal growth and child development.

ppt = parts per trillion

All test results

Date Lab ID Result
2021-10-22410-60482-53.10 ppt
2022-03-25410-77921-33.50 ppt
2022-03-25410-77921-2ND
2022-03-25410-77921-1ND
2022-07-29PB0489072922-PREND
2022-07-29PB0489072922-POSTND
2022-08-26410-96106-62.70 ppt
2022-08-26410-96106-2ND
2022-10-29410-103907-52.80 ppt
2022-11-15410-106314-32.90 ppt
2022-12-22410-110493-52.70 ppt
2023-01-12PB04890112233.20 ppt
2023-03-30PB048903323 PRE5132.50 ppt
2023-04-27PB0489042723 PRE 5132.80 ppt
2023-04-27PB0489033023 MID5140.620 ppt
2023-04-27PB0489042723 MID5140.690 ppt
2023-05-19PB0489051923-MID0.900 ppt
2023-05-19PB0489051923-PRE3.20 ppt
2023-06-07PB0489060723-PREND
2023-06-07PB0489060723-MID1.40 ppt
2023-07-28PB0489072823MID0.940 ppt
2023-07-28PB0489072823PRE2.20 ppt
2023-08-07PB0489080723PRE2.60 ppt
2023-08-07PB0489080723MID-21.10 ppt
2023-08-07PB0489080723POSTND
2023-09-22PB0489092223PRE5132.50 ppt
2023-09-22PB0489092223POST515ND
2023-09-29PB0489092923POSTND
2023-09-29PB0489092923PRE2.68 ppt
2023-10-27PB0489102723POST515ND
2023-10-27PB0489102723PRE5134.20 ppt
2023-11-15410-151526-5-PREND
2023-12-20PB0489122023POSTND
2023-12-20PB0489122023PRE3.00 ppt