Know Your Environment. Protect Your Health.

Perfluorohexanoic Acid (PFHxA)

Ayer DPW Water Division

Perfluorohexanoic 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.

 

225

Samples

0

Samples exceeding legal limit (MCL)

189

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
201821.2 ppt4414.9 ppt - 31.3 ppt
201916.8 ppt998.17 ppt - 27.2 ppt
202018.8 ppt29291.71 ppt - 106.0 ppt
202113.4 ppt6056ND - 95.9 ppt
202211.8 ppt4939ND - 84.4 ppt
20236.49 ppt7352ND - 83.9 ppt
20245.20 ppt115.20 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 perfluorohexanoic acid was defined by EPA's toxicity value published in the Integrated Risk Information System's toxicological review. This health guideline protects against harm to fetal growth and child development.

ppt = parts per trillion

All test results

Date Result
2018-08-2417.8 ppt
2018-08-2414.9 ppt
2018-10-2520.8 ppt
2018-10-2531.3 ppt
2019-02-2016.4 ppt
2019-02-2023.6 ppt
2019-05-2127.2 ppt
2019-08-2020.8 ppt
2019-08-2011.2 ppt
2019-11-118.17 ppt
2019-11-1813.4 ppt
2019-12-1015.0 ppt
2019-12-1015.0 ppt
2020-02-134.82 ppt
2020-02-133.39 ppt
2020-02-132.71 ppt
2020-02-134.22 ppt
2020-02-1310.7 ppt
2020-02-136.56 ppt
2020-02-1311.4 ppt
2020-02-1319.5 ppt
2020-02-1383.4 ppt
2020-06-091.71 ppt
2020-06-09106.0 ppt
2020-06-0920.1 ppt
2020-06-092.71 ppt
2020-06-0944.0 ppt
2020-06-094.68 ppt
2020-06-0911.3 ppt
2020-06-0918.0 ppt
2020-06-094.68 ppt
2020-09-023.29 ppt
2020-09-029.10 ppt
2020-09-0223.2 ppt
2020-12-035.25 ppt
2020-12-0311.7 ppt
2020-12-033.69 ppt
2020-12-0393.3 ppt
2020-12-0319.9 ppt
2020-12-035.52 ppt
2020-12-032.40 ppt
2020-12-037.26 ppt
2021-01-0812.0 ppt
2021-01-08ND
2021-01-083.60 ppt
2021-01-08ND
2021-01-0874.2 ppt
2021-01-083.86 ppt
2021-01-085.06 ppt
2021-01-0822.5 ppt
2021-01-08ND
2021-01-088.64 ppt
2021-01-0844.2 ppt
2021-02-223.44 ppt
2021-02-2213.4 ppt
2021-02-229.51 ppt
2021-02-2213.1 ppt
2021-02-220.254 ppt
2021-03-24ND
2021-03-2448.7 ppt
2021-03-2413.5 ppt
2021-04-2817.0 ppt
2021-04-2811.4 ppt
2021-04-281.20 ppt
2021-05-181.43 ppt
2021-05-181.28 ppt
2021-05-1813.7 ppt
2021-05-1853.8 ppt
2021-06-0995.9 ppt
2021-06-094.63 ppt
2021-06-097.38 ppt
2021-06-094.52 ppt
2021-06-1014.8 ppt
2021-06-103.49 ppt
2021-06-102.08 ppt
2021-06-1053.0 ppt
2021-06-102.92 ppt
2021-06-105.36 ppt
2021-07-211.96 ppt
2021-07-213.81 ppt
2021-07-2110.2 ppt
2021-07-2135.0 ppt
2021-08-1946.6 ppt
2021-08-195.49 ppt
2021-08-1910.2 ppt
2021-08-191.88 ppt
2021-08-1914.6 ppt
2021-09-249.08 ppt
2021-09-246.44 ppt
2021-09-242.50 ppt
2021-10-148.76 ppt
2021-10-142.27 ppt
2021-10-146.89 ppt
2021-11-129.15 ppt
2021-11-128.90 ppt
2021-11-122.17 ppt
2021-12-0219.8 ppt
2021-12-027.82 ppt
2021-12-028.19 ppt
2021-12-101.53 ppt
2021-12-107.91 ppt
2021-12-104.69 ppt
2022-01-042.15 ppt
2022-01-0410.3 ppt
2022-01-046.96 ppt
2022-02-031.74 ppt
2022-02-037.14 ppt
2022-02-0312.2 ppt
2022-02-2439.7 ppt
2022-02-2435.0 ppt
2022-02-2414.0 ppt
2022-02-2449.6 ppt
2022-03-072.19 ppt
2022-03-077.88 ppt
2022-03-0714.0 ppt
2022-04-2116.6 ppt
2022-04-212.87 ppt
2022-04-217.64 ppt
2022-04-252.59 ppt
2022-04-2584.4 ppt
2022-04-253.10 ppt
2022-05-1320.0 ppt
2022-05-133.28 ppt
2022-05-138.38 ppt
2022-06-097.67 ppt
2022-06-0921.0 ppt
2022-06-093.06 ppt
2022-07-20ND
2022-07-2027.1 ppt
2022-07-20ND
2022-07-203.45 ppt
2022-08-11ND
2022-08-1133.5 ppt
2022-08-11ND
2022-08-113.75 ppt
2022-09-084.16 ppt
2022-09-0832.6 ppt
2022-09-08ND
2022-09-08ND
2022-10-12ND
2022-10-121.12 ppt
2022-10-124.01 ppt
2022-10-1234.5 ppt
2022-11-07ND
2022-11-074.86 ppt
2022-11-072.69 ppt
2022-11-0731.7 ppt
2022-12-013.33 ppt
2022-12-017.10 ppt
2022-12-01ND
2022-12-01ND
2023-01-05ND
2023-01-054.62 ppt
2023-01-05ND
2023-01-05ND
2023-02-011.65 ppt
2023-02-01ND
2023-02-015.65 ppt
2023-02-01ND
2023-03-03ND
2023-03-034.12 ppt
2023-03-207.97 ppt
2023-03-205.20 ppt
2023-03-20ND
2023-03-206.36 ppt
2023-03-207.83 ppt
2023-04-1021.6 ppt
2023-04-103.26 ppt
2023-04-1016.5 ppt
2023-04-10ND
2023-04-10ND
2023-04-105.58 ppt
2023-04-1010.00 ppt
2023-04-10ND
2023-04-104.93 ppt
2023-04-10ND
2023-05-02ND
2023-05-02ND
2023-05-04ND
2023-05-044.43 ppt
2023-05-04ND
2023-05-046.20 ppt
2023-05-084.43 ppt
2023-05-0883.9 ppt
2023-05-084.78 ppt
2023-06-06ND
2023-06-064.37 ppt
2023-06-065.91 ppt
2023-06-061.17 ppt
2023-07-141.48 ppt
2023-07-14ND
2023-07-143.25 ppt
2023-07-145.26 ppt
2023-08-0712.7 ppt
2023-08-073.84 ppt
2023-08-08ND
2023-08-087.47 ppt
2023-08-083.14 ppt
2023-08-086.38 ppt
2023-09-13ND
2023-09-136.49 ppt
2023-09-136.40 ppt
2023-09-135.98 ppt
2023-09-136.63 ppt
2023-09-1339.7 ppt
2023-09-136.12 ppt
2023-09-136.72 ppt
2023-09-1319.0 ppt
2023-09-136.01 ppt
2023-09-1334.2 ppt
2023-09-133.40 ppt
2023-10-04ND
2023-10-043.69 ppt
2023-10-047.58 ppt
2023-10-046.24 ppt
2023-11-07ND
2023-11-204.19 ppt
2023-11-201.49 ppt
2023-11-2017.8 ppt
2023-11-205.89 ppt
2023-12-0811.4 ppt
2023-12-081.56 ppt
2023-12-084.18 ppt
2023-12-085.41 ppt
2024-02-125.20 ppt