Know Your Environment. Protect Your Health.

Perfluorononanoic acid (PFNA)

City of West Richland

NOTE: City of West Richland purchases water from City of Richland which is required to test for perfluorononanoic acid (pfna). Sample information shown below was taken by City of Richland.

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.

 

17

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
2014N/A00N/A
2015N/A00N/A
2016N/A00N/A
2017N/A00N/A
2018N/A00N/A
2019N/A00N/A
2020N/A00N/A
2021N/A00N/A
2022ND40ND
2023ND10ND
2024ND70ND

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

NOTE: City of West Richland purchases water from City of Richland which is required to test for perfluorononanoic acid (pfna). Sample information shown below was taken by City of Richland.

Date Lab ID Result
2022-06-144300368ND
2022-06-144300369ND
2022-06-144300370ND
2022-08-174370025ND
2023-03-13K2302981-003ND
2023-03-13K2302981-005ND
2023-03-23K2303481-001ND
2023-03-27K2303626-001ND
2023-06-204481830ND
2023-06-204481830ND
2023-06-204481829ND
2023-06-21K2307069-001ND
2023-06-21K2307069-003ND
2023-09-06K2309956-001ND
2023-09-06K2309956-003ND
2023-12-04K2313554-001ND
2023-12-04K2313554-003ND