Know Your Environment. Protect Your Health.

Perfluoroheptane sulfonic acid (PFHpS)

Stokesdale, Town of

NOTE: Stokesdale, Town of purchases water from City of Winston-Salem which is required to test for perfluoroheptane sulfonic acid (pfhps). Sample information shown below was taken by City of Winston-Salem.

Perfluoroheptane sulfonic acid (PFHpS) is a member of a group of perfluorinated chemicals used in many consumer products. PFHpS and other 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.

 

15

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018N/A00N/A
2019ND30ND
2020N/A00N/A
2021N/A00N/A
2022N/A00N/A
2023ND30ND
2024ND20ND

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 PFHpS was defined by EPA's recommended application of the PFHxS toxicity value published in the Integrated Risk Information System's toxicological review. This health guideline protects against harm to the developing immune system.

ppt = parts per trillion

All test results

NOTE: Stokesdale, Town of purchases water from City of Winston-Salem which is required to test for perfluoroheptane sulfonic acid (pfhps). Sample information shown below was taken by City of Winston-Salem.

Date Lab ID Result
2019-04-16ND
2019-07-11ND
2019-07-11ND
2023-08-07C3H1177-01RE2ND
2023-08-07C3H1177-03ND
2023-08-07C3H1177-05ND
2024-01-02C4A0267-05ND
2024-02-05C4B0658-01ND
2024-02-05C4B0658-03ND
2024-02-05C4B0658-05ND
2024-02-14C4B2191-01RE1ND
2024-02-14C4B2191-03ND
2024-05-06C4E1072-01ND
2024-05-06C4E1072-03RE1ND
2024-05-06C4E1072-05ND