Know Your Environment. Protect Your Health.

Perfluoroheptanoic acid (PFHPA)

Petersburgh Water District

Perfluoroheptanoic 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.

 

50

Samples

0

Samples exceeding legal limit (MCL)

26

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018N/A00N/A
2019N/A00N/A
2020N/A00N/A
20212.95 ppt116ND - 8.00 ppt
20222.90 ppt168ND - 9.20 ppt
20232.95 ppt2312ND - 6.70 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 perfluoroheptanoic acid was defined by EPA's recommended application of the toxicity value for PFHxA published in the Integrated Risk Information System’s toxicological review. This health guideline harm to fetal growth and child development.

ppt = parts per trillion

All test results

Date Lab ID Result
2021-05-27PB0489052721-MIDND
2021-05-27PB0489052721-POSTND
2021-05-27PB0489052721-PRE2.30 ppt
2021-08-13410-51384-1ND
2021-08-13410-51384-2ND
2021-08-13410-51384-37.70 ppt
2021-09-24PB0489092421 POSTND
2021-09-24PB0489092421 PRE 5135.10 ppt
2021-10-22410-60482-58.00 ppt
2021-11-19PB0489111921PRE6.70 ppt
2021-12-10PB0489121021PRE2.60 ppt
2022-03-25410-77921-39.20 ppt
2022-03-25410-77921-1ND
2022-03-25410-77921-2ND
2022-06-0622F0422-022.30 ppt
2022-06-0622F0422-09ND
2022-06-0644F0422-03ND
2022-06-0622G0821-02ND
2022-06-0622F0422-01ND
2022-06-24PB0489062422PRE5137.20 ppt
2022-07-29PB0489072922-POSTND
2022-07-29PB0489072922-PRE2.80 ppt
2022-08-26410-96106-2ND
2022-08-26410-96106-66.10 ppt
2022-10-29410-103907-56.60 ppt
2022-11-15410-106314-35.50 ppt
2022-12-22410-110493-56.70 ppt
2023-01-12PB04890112236.30 ppt
2023-03-30PB048903323 PRE5135.30 ppt
2023-04-27PB0489033023 MID514ND
2023-04-27PB0489042723 PRE 5136.30 ppt
2023-04-27PB0489042723 MID514ND
2023-05-19PB0489051923-PRE6.20 ppt
2023-05-19PB0489051923-MIDND
2023-06-07PB0489060723-PRE6.70 ppt
2023-06-07PB0489060723-MIDND
2023-07-28PB0489072823MIDND
2023-07-28PB0489072823PRE5.80 ppt
2023-08-07PB0489080723PRE6.40 ppt
2023-08-07PB0489080723MID-2ND
2023-08-07PB0489080723POSTND
2023-09-22PB0489092223PRE5135.80 ppt
2023-09-22PB0489092223POST515ND
2023-09-29PB0489092923POSTND
2023-09-29PB0489092923PRE3.36 ppt
2023-10-27PB0489102723PRE5135.50 ppt
2023-10-27PB0489102723POST515ND
2023-11-15410-151526-5-PRE5.70 ppt
2023-12-20PB0489122023PRE4.40 ppt
2023-12-20PB0489122023POSTND