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EWG's Tap Water Database — 2021 UPDATE

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Total PFOS and PFOA

City of Alpena

Perfluorooctane sulfonate (PFOS) and Perfluorooctanoic acid (PFOA) are a member of a group of perfluorinated chemicals used in many consumer products. PFOS, PFOA 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.

 

3

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
2018ND30ND
2019N/A00N/A

ppt = parts per trillion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.007 ppt

EWG applied the health guideline of 0.007 ppt, defined by the California Office of Environmental Health Hazard Assessment as a public health goal for PFOA, to PFOS and PFOA combined. This health guideline protects against cancer

EPA Proposed Maximum Contaminant
Level (MCL) 4 ppt

The proposed legal limits for PFOA and PFOS are 4 ppt for each chemical, based on studies on people, including children, showing cancer risk.

ppt = parts per trillion

All test results

Date Lab ID Result
2018-10-29SWEF1810291230GGND
2018-10-29SWIN1810291200GGND
2018-10-29SWEF1810291230GGND