Know Your Environment. Protect Your Health.

Perfluorooctane sulfonate (PFOS)

Mountainview Mobile Home Park

Perfluorooctane sulfonate (PFOS) is a member of a group of perfluorinated chemicals used in many consumer products. PFOS 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.

 

13

Samples

0

Samples exceeding legal limit (MCL)

6

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018N/A00N/A
2019N/A00N/A
2020N/A00N/A
20211.02 ppt62ND - 3.50 ppt
20221.51 ppt53ND - 3.10 ppt
20231.13 ppt21ND - 2.25 ppt

ppt = parts per trillion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 0.3 ppt

The EWG Health Guideline of 0.3 ppt for PFOS was defined by EPA's final toxicity value from the Office of Water’s Final Human Health Toxicity Assessment. This health guideline protects againat cardiovascular harm and harm to fetal growth.

EPA Maximum Contaminant
Level (MCL): 4 ppt

ppt = parts per trillion

All test results

Date Lab ID Result
2021-09-306839101PFO WL1ND
2021-09-306839101PFO WL23.50 ppt
2021-09-306839101PFO WL3ND
2021-12-22070185-01CD PFOND
2021-12-22070185-03CD PFO2.60 ppt
2021-12-2207018505CD PFOND
2022-03-2423066PFO WL23.10 ppt
2022-03-2422914PFO WL3ND
2022-06-16702194140021.80 ppt
2022-09-27142970PFO2.67 ppt
2022-12-20143612PFOND
2023-03-27138548 PFAS DIOX WL22.25 ppt
2023-06-1936787PFOND