Know Your Environment. Protect Your Health.

Perfluorononanoic acid (PFNA)

City of Tumwater

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.

 

16

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
2020N/A00N/A
2021N/A00N/A
2022ND60ND
2023ND100ND

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
2022-01-254255623ND
2022-01-254255624ND
2022-01-254255622ND
2022-05-054286078ND
2022-05-054286080ND
2022-07-274394999ND
2023-05-18K2305674-001ND
2023-05-18K2305674-003ND
2023-05-18K2305674-005ND
2023-05-18K2305674-007ND
2023-05-18K2305674-009ND
2023-10-19K2311994-001ND
2023-10-19K2311994-003ND
2023-10-19K2311994-005ND
2023-10-19K2311994-007ND
2023-10-19K2311994-009ND