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EWG's Tap Water Database — 2021 UPDATE

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Perfluorooctane sulfonate (PFOS)

Brookwood Comm. Water System

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.

MORE ABOUT THIS CONTAMINANT

 

40

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND400ND
2015N/A00N/A
2016N/A00N/A
2017N/A00N/A
2018N/A00N/A
2019N/A00N/A

ppt = parts per trillion

State and national drinking water standards and health guidelines

EWG Health Guideline 1 ppt

The EWG Health Guideline of 1 ppt for PFOS was defined by EWG 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. This health guideline applies to the entire class of PFAS detected in water.

EPA Maximum Contaminant
Level (MCL) 4 ppt

ppt = parts per trillion

All test results

Date Lab ID Result
2014-02-05201402060232AMND
2014-02-05201402060422AMND
2014-02-05201402060255AMND
2014-02-05201402060270AMND
2014-02-05201402060239AMND
2014-02-06201402070205AMND
2014-02-06201402070207AMND
2014-02-06201402070213AMND
2014-02-06201402070241AMND
2014-02-24201402250219AMND
2014-02-24201402250194AMND
2014-02-24201402250217AMND
2014-02-24201402250329AMND
2014-02-24201402250190AMND
2014-02-24201402250230AMND
2014-02-24201402250336AMND
2014-02-24201402250338AMND
2014-02-25201402260636AMND
2014-02-25201402260692AMND
2014-02-25201402260616AMND
2014-08-12201408130303AMND
2014-08-12201408130463AMND
2014-08-12201408130473AMND
2014-08-12201408130653AMND
2014-08-14201408150398AMND
2014-08-14201408150202AMND
2014-08-14201408150324AMND
2014-08-14201408150255AMND
2014-08-18201408190691AMND
2014-08-18201408190657AMND
2014-08-18201408190671AMND
2014-08-18201408190661AMND
2014-08-18201408190655AMND
2014-08-18201408190536AMND
2014-08-26201408270815AMND
2014-08-26201408270834AMND
2014-08-26201408270818AMND
2014-08-26201408270830AMND
2014-08-27201408280801AMND
2014-08-27201408280737AMND