Know Your Environment. Protect Your Health.

Perfluorooctane sulfonate (PFOS)

Hoosick Falls

Perfluorooctane sulfonate (PFOS) is a member of a group of perfluorinated chemicals used in many consumer products. PFOS 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.

 

121

Samples

0

Samples exceeding legal limit (MCL)

64

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20181.23 ppt63ND - 3.80 ppt
20191,067.0 ppt95ND - 3,200.0 ppt
20201.04 ppt248ND - 4.10 ppt
20211.59 ppt3415ND - 8.30 ppt
20222.78 ppt2918ND - 10.00 ppt
20232.29 ppt1915ND - 3.80 ppt

ppt = parts per trillion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 0.3 ppt

The EWG Health Guideline of 0.3 ppt for PFOS was defined by EPA's final toxicity value from the Office of Water’s Final Human Health Toxicity Assessment. This health guideline protects againat cardiovascular harm and harm to fetal growth.

EPA Maximum Contaminant
Level (MCL): 4 ppt

ppt = parts per trillion

All test results

Date Lab ID Result
2018-03-26HF0766032618PREND
2018-03-26HF0766032618MIDND
2018-03-26HF0766032618POSTND
2018-05-0395933981.80 ppt
2018-05-0395933963.80 ppt
2018-05-0395933971.80 ppt
2019-04-04PW10275441,800.0 ppt
2019-04-04PW10275423,200.0 ppt
2019-04-04PW10275431,800.0 ppt
2019-05-021049438PRE2,800.0 ppt
2019-05-021049439MIDND
2019-05-021049440ND
2019-09-05HOO35-03ND
2019-09-05HOO35-013.40 ppt
2019-09-05HOO35-02ND
2020-06-04410-3627-3ND
2020-06-04410-3627-12.00 ppt
2020-06-04410-3627-2ND
2020-06-19410-5152-2ND
2020-06-19410-5152-3ND
2020-06-19410-5152-12.90 ppt
2020-07-01410-6532-3ND
2020-07-01410-6532-13.40 ppt
2020-07-01410-6532-2ND
2020-07-16410-8075-12.70 ppt
2020-07-16410-8075-2ND
2020-07-16410-8075-3ND
2020-07-30410-9288-2ND
2020-07-30410-9288-3ND
2020-07-30410-9288-1ND
2020-08-13410-10735-12.80 ppt
2020-08-13410-10735-2ND
2020-08-13410-10735-3ND
2020-10-01410-15846-3ND
2020-10-01410-15846-14.10 ppt
2020-11-05410-19871-13.30 ppt
2020-11-05410-19871-3ND
2020-12-03410-22908-13.80 ppt
2020-12-03410-22908-3ND
2021-01-07410-25853-13.80 ppt
2021-01-07410-25853-3ND
2021-02-04410-28622-13.70 ppt
2021-02-04410-28622-41.80 ppt
2021-02-04410-28622-7-P25ND
2021-02-04410-28622-8-FTBND
2021-02-04410-28622-9-LTBND
2021-02-04410-28622-21.70 ppt
2021-02-04410-28622-31.70 ppt
2021-02-04410-28622-5-50ND
2021-02-04410-28622-6-75ND
2021-03-04410-31382-3ND
2021-03-04410-31382-13.00 ppt
2021-03-04410-31382-2ND
2021-05-18410-40418-13.30 ppt
2021-05-18410-40418-3ND
2021-05-18410-40418-2ND
2021-06-03410-42452-3ND
2021-06-03410-42452-13.10 ppt
2021-06-03410-42452-2ND
2021-07-01410-45809-2ND
2021-07-01410-45809-3ND
2021-07-01410-45809-18.30 ppt
2021-08-05410-50447-3ND
2021-08-05410-50447-16.90 ppt
2021-09-02410-53847-2ND
2021-09-02410-53847-3ND
2021-09-02410-53847-13.40 ppt
2021-09-24410-56678-1ND
2021-10-07410-58350-3ND
2021-11-18410-64207-13.30 ppt
2021-12-02410-65486-14.00 ppt
2021-12-16410-67377-32.80 ppt
2021-12-29GAC INFLUENT3.30 ppt
2022-01-13GAC INFLUENT3.90 ppt
2022-02-03410-71774-13.30 ppt
2022-03-03GAC INFLUENT0303223.10 ppt
2022-03-07JH2201745-115496.50 ppt
2022-03-07JH22017463.50 ppt
2022-03-07JH2201746-115493.50 ppt
2022-03-07JH2201744-1154910.00 ppt
2022-03-07JH22017456.50 ppt
2022-03-07JH220174410.00 ppt
2022-04-07410-79423-13.40 ppt
2022-04-07410-79423-3ND
2022-05-05410-83056-2ND
2022-05-05410-83056-3ND
2022-05-05410-83056-12.90 ppt
2022-07-07410-90405-2ND
2022-07-07410-90405-13.50 ppt
2022-07-07410-90405-3ND
2022-07-07410-090405-13.50 ppt
2022-07-21410-92065-12.90 ppt
2022-08-18410-95085-13.30 ppt
2022-08-18410-95085-2ND
2022-08-18410-95085-3ND
2022-09-01410-96682-5ND
2022-09-01410-96682-33.50 ppt
2022-09-01410-96682-4ND
2022-09-26410-99464-13.50 ppt
2022-10-06410-101220-13.70 ppt
2022-12-01410-107636-3ND
2022-12-01410-107636-1ND
2023-01-05410-111429-1A3.60 ppt
2023-02-02410-114241-13.20 ppt
2023-03-02410-117488-13.10 ppt
2023-03-16410-119243-13.40 ppt
2023-03-16410-119243-2ND
2023-03-30410-120972-2ND
2023-03-30410-120972-13.10 ppt
2023-04-27410-124754-23.10 ppt
2023-06-01410-129018-2ND
2023-06-01410-129018-13.40 ppt
2023-07-06410-133677-12.90 ppt
2023-08-03410137604-31.70 ppt
2023-08-03410137604-21.70 ppt
2023-08-03410137604-13.40 ppt
2023-10-17410-147466-1-MID1.70 ppt
2023-11-28112823-PRE3.80 ppt
2023-11-28410-152696-3-POST1.70 ppt
2023-12-14410-154873-1-PRE3.70 ppt
2023-12-14410-154873-3-POSTND