Know Your Environment. Protect Your Health.

Perfluorooctanoic acid (PFOA)

Hillview Water Company-oakhurst/sierra Lakes

Perfluorooctanoic acid (PFOA) is a member of a group of perfluorinated chemicals used in many consumer products. PFOA 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.

 

30

Samples

0

Samples exceeding legal limit (MCL)

3

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014N/A00N/A
2015N/A00N/A
2016N/A00N/A
2017N/A00N/A
2018N/A00N/A
2019N/A00N/A
20200.771 ppt213ND - 10.8 ppt
2021ND10ND
2022N/A00N/A
2023ND80ND

ppt = parts per trillion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 0.09 ppt

The EWG Health Guideline of 0.09 ppt for PFOA was 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
2020-10-20CA2010007_033_033-202010201705ND
2020-10-20CA2010007_034_034-202010201725ND
2020-10-20CA2010007_009_009-202010201617ND
2020-10-20CA2010007_031_031-202010201648ND
2020-10-20CA2010007_007_007-202010201551ND
2020-10-20CA2010007_010_010-202010201602ND
2020-10-20CA2010007_030_030-202010201633ND
2020-10-20CA2010007_032_032-202010201657ND
2020-10-20CA2010007_039_039-20201020182310.8 ppt
2020-10-20CA2010007_041_041-202010201830ND
2020-10-21CA2010007_028_028-202010211549ND
2020-10-21CA2010007_048_048-202010211416ND
2020-10-21CA2010007_002_002-202010211803ND
2020-10-21CA2010007_001_001-202010211747ND
2020-10-21CA2010007_024_024-202010211719ND
2020-10-21CA2010007_047_047-202010211408ND
2020-10-21CA2010007_046_046-202010211400ND
2020-10-21CA2010007_003_003-202010211737ND
2020-10-21CA2010007_017_017-202010211242ND
2020-11-04CA2010007_039_039-2020110415402.80 ppt
2020-11-23CA2010007_039_039-2020112315252.60 ppt
2021-02-17CA2010007_040_040-202102171121ND
2023-04-19102837PND
2023-04-19102839PND
2023-09-13108496RND
2023-09-13108506RND
2023-10-02108579PND
2023-10-02108580PND
2023-10-03108577PND
2023-10-03108578PND