Know Your Environment. Protect Your Health.

Perfluoroheptanoic acid (PFHPA)

Ayer Road Properties LLC

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.

 

72

Samples

0

Samples exceeding legal limit (MCL)

29

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND10ND
20192.44 ppt1412ND - 3.92 ppt
20200.858 ppt75ND - 2.03 ppt
20210.786 ppt2017ND - 3.76 ppt
20221.67 ppt159ND - 5.30 ppt
20230.920 ppt159ND - 3.65 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 Result
2018-08-22ND
2019-05-032.96 ppt
2019-05-03ND
2019-05-032.76 ppt
2019-05-032.96 ppt
2019-05-032.74 ppt
2019-05-032.55 ppt
2019-05-03ND
2019-05-032.55 ppt
2019-05-302.89 ppt
2019-05-302.89 ppt
2019-05-303.03 ppt
2019-05-303.92 ppt
2019-05-302.78 ppt
2019-05-302.19 ppt
2020-01-02ND
2020-05-051.69 ppt
2020-05-050.298 ppt
2020-05-051.15 ppt
2020-05-052.03 ppt
2020-05-05ND
2020-05-050.836 ppt
2021-01-120.862 ppt
2021-01-120.246 ppt
2021-01-120.559 ppt
2021-04-25ND
2021-04-250.719 ppt
2021-04-250.792 ppt
2021-04-250.499 ppt
2021-04-250.719 ppt
2021-04-250.792 ppt
2021-04-250.551 ppt
2021-04-250.551 ppt
2021-04-250.499 ppt
2021-04-250.848 ppt
2021-04-250.848 ppt
2021-07-26ND
2021-07-260.988 ppt
2021-07-26ND
2021-10-253.76 ppt
2021-10-251.86 ppt
2021-10-250.618 ppt
2022-01-303.36 ppt
2022-01-300.724 ppt
2022-01-302.25 ppt
2022-04-103.41 ppt
2022-04-10ND
2022-04-103.00 ppt
2022-04-10ND
2022-04-135.30 ppt
2022-04-133.38 ppt
2022-07-11ND
2022-07-112.73 ppt
2022-07-11ND
2022-10-03ND
2022-10-030.897 ppt
2022-10-03ND
2023-01-160.718 ppt
2023-01-16ND
2023-01-16ND
2023-04-101.08 ppt
2023-04-100.979 ppt
2023-04-10ND
2023-04-10ND
2023-04-100.960 ppt
2023-04-100.646 ppt
2023-07-172.56 ppt
2023-07-17ND
2023-08-282.05 ppt
2023-10-093.65 ppt
2023-10-09ND
2023-11-151.15 ppt