Know Your Environment. Protect Your Health.

Perfluoroheptanoic acid (PFHPA)

Pepperell DPW Water Division

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.

 

147

Samples

0

Samples exceeding legal limit (MCL)

79

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
2014N/A00N/A
2015N/A00N/A
2016N/A00N/A
2017N/A00N/A
2018N/A00N/A
2019N/A00N/A
2020N/A00N/A
20210.835 ppt4835ND - 2.53 ppt
20221.06 ppt5040ND - 4.14 ppt
20231.08 ppt4942ND - 2.40 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
2021-03-081.72 ppt
2021-03-080.600 ppt
2021-03-081.55 ppt
2021-03-081.36 ppt
2021-03-081.32 ppt
2021-04-061.26 ppt
2021-04-061.31 ppt
2021-04-060.656 ppt
2021-04-06ND
2021-04-06ND
2021-04-060.741 ppt
2021-04-060.756 ppt
2021-05-120.715 ppt
2021-05-121.19 ppt
2021-05-120.786 ppt
2021-05-120.900 ppt
2021-05-121.12 ppt
2021-06-230.929 ppt
2021-06-23ND
2021-06-230.849 ppt
2021-06-230.833 ppt
2021-06-230.933 ppt
2021-07-22ND
2021-07-22ND
2021-07-22ND
2021-08-182.28 ppt
2021-08-182.53 ppt
2021-08-181.04 ppt
2021-08-181.20 ppt
2021-08-180.678 ppt
2021-09-221.42 ppt
2021-09-220.592 ppt
2021-09-221.28 ppt
2021-10-150.878 ppt
2021-10-151.41 ppt
2021-10-150.603 ppt
2021-10-15ND
2021-10-15ND
2021-10-15ND
2021-10-151.46 ppt
2021-11-17ND
2021-11-171.74 ppt
2021-11-17ND
2021-11-171.14 ppt
2021-12-20ND
2021-12-201.17 ppt
2021-12-20ND
2021-12-201.15 ppt
2022-01-131.06 ppt
2022-01-130.635 ppt
2022-01-13ND
2022-01-130.864 ppt
2022-01-13ND
2022-02-151.25 ppt
2022-02-151.07 ppt
2022-02-150.908 ppt
2022-02-221.29 ppt
2022-03-170.770 ppt
2022-03-170.852 ppt
2022-03-171.19 ppt
2022-03-171.06 ppt
2022-04-19ND
2022-04-190.997 ppt
2022-04-281.04 ppt
2022-04-281.06 ppt
2022-05-091.19 ppt
2022-05-121.44 ppt
2022-05-121.12 ppt
2022-05-121.50 ppt
2022-06-131.10 ppt
2022-06-132.36 ppt
2022-06-13ND
2022-06-131.52 ppt
2022-07-264.14 ppt
2022-07-261.81 ppt
2022-07-260.723 ppt
2022-07-260.650 ppt
2022-07-261.30 ppt
2022-09-131.81 ppt
2022-09-13ND
2022-09-131.48 ppt
2022-09-13ND
2022-09-131.53 ppt
2022-09-131.30 ppt
2022-09-131.26 ppt
2022-10-041.23 ppt
2022-10-04ND
2022-10-042.44 ppt
2022-10-041.14 ppt
2022-10-05ND
2022-11-011.11 ppt
2022-11-01ND
2022-11-010.983 ppt
2022-11-012.53 ppt
2022-12-06ND
2022-12-060.796 ppt
2022-12-061.82 ppt
2022-12-060.848 ppt
2023-01-031.18 ppt
2023-01-031.05 ppt
2023-01-031.16 ppt
2023-01-031.12 ppt
2023-01-25ND
2023-01-25ND
2023-02-071.33 ppt
2023-02-070.984 ppt
2023-02-071.06 ppt
2023-02-070.876 ppt
2023-02-09ND
2023-03-061.21 ppt
2023-03-060.914 ppt
2023-03-060.869 ppt
2023-03-061.19 ppt
2023-04-041.11 ppt
2023-04-040.909 ppt
2023-04-040.836 ppt
2023-04-040.986 ppt
2023-05-021.02 ppt
2023-05-021.04 ppt
2023-05-020.813 ppt
2023-05-031.01 ppt
2023-06-061.19 ppt
2023-06-060.949 ppt
2023-06-062.40 ppt
2023-07-241.55 ppt
2023-07-241.35 ppt
2023-07-242.30 ppt
2023-07-24ND
2023-07-241.62 ppt
2023-08-081.70 ppt
2023-08-081.30 ppt
2023-08-081.53 ppt
2023-08-161.37 ppt
2023-09-121.28 ppt
2023-09-120.981 ppt
2023-09-121.49 ppt
2023-09-19ND
2023-09-19ND
2023-10-030.934 ppt
2023-10-031.49 ppt
2023-10-03ND
2023-11-071.46 ppt
2023-11-070.803 ppt
2023-11-071.48 ppt
2023-12-071.24 ppt
2023-12-071.97 ppt
2023-12-071.97 ppt