Know Your Environment. Protect Your Health.

9-chlorohexadecafluoro-3-oxanone-1-sulfonic acid (9Cl-PF3ONS)

Lacey Water Department

9-chlorohexadecafluoro-3-oxanone-1-sulfonic acid (9Cl-PF3ONS) is a member of a group of perfluorinated chemicals used in many consumer products. 9Cl-PF3ONS 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.

 

18

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
2022N/A00N/A
2023ND90ND
2024ND90ND

ppt = parts per trillion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 1 ppt

The EWG Health Guideline of 1 ppt for 9Cl-PF3ONS was defined by EWG as 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.

ppt = parts per trillion

All test results

Date Lab ID Result
2023-12-13K2314009-001ND
2023-12-13K2314009-003ND
2023-12-13K2314009-017ND
2023-12-13K2314009-009ND
2023-12-13K2314009-011ND
2023-12-13K2314009-013ND
2023-12-13K2314009-007ND
2023-12-13K2314009-015ND
2023-12-13K2314009-005ND
2024-06-25K2406560-017ND
2024-06-25K2406560-015ND
2024-06-25K2406560-013ND
2024-06-25K2406560-011ND
2024-06-25K2406560-009ND
2024-06-25K2406560-007ND
2024-06-25K2406560-005ND
2024-06-25K2406560-003ND
2024-06-25K2406560-001ND