Know Your Environment. Protect Your Health.

Hexafluoropropylene oxide dimer acid (HFPO-DA)

City of West Richland

NOTE: City of West Richland purchases water from City of Richland which is required to test for hexafluoropropylene oxide dimer acid (hfpo-da). Sample information shown below was taken by City of Richland.

Hexafluoropropylene oxide dimer acid (HFPO-DA) is a member of a group of perfluorinated chemicals used in many consumer products. HFPO-DA and other perfluorinated chemicals can cause serious health effects, including cancer, endocrine disruption, accelerated puberty, liver and immune system damage, and thyroid changes. These chemicals are persistent in the environment and they accumulate in people. 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
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: 9 ppt

The EWG Health Guideline of 9 ppt for HFPO-DA was based on the EPA's Human Health toxicity value.This health guideline protects against harm to the liver.

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 hexafluoropropylene oxide dimer acid (hfpo-da). 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