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EWG's Tap Water Database — 2021 UPDATE

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Perfluorononanoic acid (PFNA)

City of Chino

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.

MORE ABOUT THIS CONTAMINANT

 

24

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND70ND
2015ND110ND
2016N/A00N/A
2017N/A00N/A
2018N/A00N/A
2019ND60ND

ppt = parts per trillion

State and national drinking water standards and health guidelines

EWG Health Guideline 1 ppt

The EWG Health Guideline of 1 ppt for perfluorononanoic acid was defined by EWG based on studies by Phillipe Grandjean of Harvard University and many other independent researchers who found reduced effectiveness of vaccines and adverse impacts on mammary gland development from exposure to PFOA and PFOS, the two PFAS most widely detected in drinking water. This health guideline applies to the entire class of PFAS detected in water.

EPA Maximum Contaminant
Level (MCL) 10 ppt

ppt = parts per trillion

All test results

Date Lab ID Result
2014-10-30201410300311AMND
2014-10-30201410300300AMND
2014-10-30201410300281AMND
2014-10-30201410300287AMND
2014-10-30201410300302AMND
2014-10-30201410300377AMND
2014-10-30201410300379AMND
2015-01-29201501290343AMND
2015-01-29201501290336AMND
2015-04-29201504290666AMND
2015-04-29201504290435AMND
2015-04-29201504290495AMND
2015-04-29201504290430AMND
2015-04-29201504290662AMND
2015-04-29201504290657AMND
2015-04-29201504290625AMND
2015-07-23201507230361AMND
2015-07-23201507230333AMND
2019-10-159588-004-0850ND
2019-10-159588-026-1005ND
2019-10-159588-024-1030ND
2019-10-159588-017-0830ND
2019-10-159588-012-0945ND
2019-10-159588-008-1115ND