Know Your Environment. Protect Your Health.

Perfluorononanoic acid (PFNA)

Hillview Water Company-oakhurst/sierra Lakes

Perfluorononanoic acid, otherwise known as PFNA or C9, is a PFC similar in function and use to PFOA. These chemicals were used in the production of non-stick, stain repellent and chemically inert coatings. Click here to read more about perfluorinated chemicals.

 

30

Samples

0

Samples exceeding legal limit (MCL)

0

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
2020ND210ND
2021ND10ND
2022N/A00N/A
2023ND80ND

ppt = parts per trillion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 0.006 ppt

The EWG Health Guideline of 6 ppt for perfluorononanoic acid was defined by EPA recommended application of the toxicity value for PFDA published in the Integrated Risk Information System’s toxicological review . This health guideline harm to the immune system and harm to fetal growth and child development.

EPA Maximum Contaminant
Level (MCL): 10 ppt

ppt = parts per trillion

All test results

Date Lab ID Result
2020-10-20CA2010007_032_032-202010201657ND
2020-10-20CA2010007_010_010-202010201602ND
2020-10-20CA2010007_007_007-202010201551ND
2020-10-20CA2010007_039_039-202010201823ND
2020-10-20CA2010007_034_034-202010201725ND
2020-10-20CA2010007_030_030-202010201633ND
2020-10-20CA2010007_031_031-202010201648ND
2020-10-20CA2010007_041_041-202010201830ND
2020-10-20CA2010007_009_009-202010201617ND
2020-10-20CA2010007_033_033-202010201705ND
2020-10-21CA2010007_017_017-202010211242ND
2020-10-21CA2010007_048_048-202010211416ND
2020-10-21CA2010007_047_047-202010211408ND
2020-10-21CA2010007_024_024-202010211719ND
2020-10-21CA2010007_003_003-202010211737ND
2020-10-21CA2010007_001_001-202010211747ND
2020-10-21CA2010007_002_002-202010211803ND
2020-10-21CA2010007_028_028-202010211549ND
2020-10-21CA2010007_046_046-202010211400ND
2020-11-04CA2010007_039_039-202011041540ND
2020-11-23CA2010007_039_039-202011231525ND
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