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EWG's Tap Water Database — 2021 UPDATE

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Perfluorononanoic acid (PFNA)

City of Garden Grove

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

 

57

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013ND250ND
2014N/A00N/A
2015N/A00N/A
2016N/A00N/A
2017N/A00N/A
2018N/A00N/A
2019ND320ND

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
2013-03-043010062821ND
2013-03-053010062816ND
2013-05-133010062802ND
2013-05-133010062820ND
2013-05-133010062805ND
2013-05-143010062813ND
2013-05-143010062803ND
2013-05-143010062807ND
2013-05-153010062815ND
2013-05-153010062809ND
2013-05-153010062811ND
2013-06-103010062821-2ND
2013-06-103010062816-2ND
2013-09-033010062816-3ND
2013-09-033010062821-3ND
2013-11-133010062813-2ND
2013-11-133010062815-2ND
2013-11-133010062805-2ND
2013-11-133010062802-2ND
2013-11-133010062809-2ND
2013-11-133010062806-2ND
2013-11-133010062820-2ND
2013-12-093010062821-4ND
2013-12-093010062816-4ND
2013-12-113010062811-2RND
2019-04-244417-039-0735ND
2019-04-244417-020-1000ND
2019-04-244417-050-1010ND
2019-04-244417-014-0945ND
2019-04-244417-061-0715ND
2019-04-244417-012-0810ND
2019-04-244417-009-0830ND
2019-06-054417-009-0835ND
2019-06-054417-012-0810ND
2019-06-054417-061-0720ND
2019-06-054417-050-0945ND
2019-06-054417-039-0745ND
2019-06-054417-014-0915ND
2019-06-054417-020-0930ND
2019-09-044417-009-0750ND
2019-09-044417-061-0705ND
2019-09-044417-012-0815ND
2019-09-044417-050-0855ND
2019-09-044417-039-0725ND
2019-09-044417-014-0830ND
2019-09-184417-020-0700ND
2019-10-104417-020-1335ND
2019-10-104417-012-1320ND
2019-11-064417-014-1010ND
2019-11-064417-020-1055ND
2019-11-064417-012-0735ND
2019-11-064417-039-0805ND
2019-11-064417-050-1105ND
2019-11-064417-061-0710ND
2019-11-064417-009-0835ND
2019-11-064417-063-1030ND
2019-12-044417-063-0935ND