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EWG's Tap Water Database — 2021 UPDATE

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Perfluorododecanoic acid (PFDoA)

Status: No national drinking water standard exists

 

Perfluorododecanoic acid (PFDoA) is a member of a group of perfluorinated chemicals used in many consumer products. PFDA 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.

2017-2019:

FOUND
FOUND ABOVE HEALTH GUIDELINES

1

states detected

16

utilities detected

582,000

people served

0

states over health guideline

0

utilities over health guideline

0

people served over health guideline

Health concerns for perfluorododecanoic acid (PFDoA)

Cancer

Harm to the immune system

Hormone disruption

Harm to fetal growth and child development

Harm to the liver

State and national drinking water standards and health guidelines

EWG Health Guideline 1 ppt

The EWG Health Guideline of 1 ppt for perfluorododecanoic acid (PFDoA) 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. This health guideline protects against applies to the entire class of PFAS detected in water.

ppt = parts per trillion

States reporting perfluorododecanoic acid (PFDoA) in drinking water

UTILITIES WITH CONTAMINATION
State UtilitiesPeople Served
North Carolina16581,799
MORE
LESS

Filtering technologies that reduce perfluorododecanoic acid (PFDoA)

Activated Carbon

Reverse Osmosis

Utilities with the highest amounts of perfluorododecanoic acid (PFDoA), 2017-2019

ALL UTILITIES
LARGE UTILITIES
UtilityLocationTestsAverage levelPeople served
Maury Water AssociationMaury, NC1 of 12.30 ppt468
Arba Water CorporationSnow Hill, NC1 of 12.30 ppt203
Walstonburg, Town ofWalstonburg, NC1 of 12.30 ppt240
Ormondsville Water CorporationKinston, NC1 of 12.30 ppt296
Greene County Regional Water System*Snow Hill, NC1 of 12.30 ppt9,992
City of Winston-Salem*Pfafftown, NC1 of 32.23 ppt371,063
Yorktown S/dCharlotte, NC1 of 32.23 ppt272
Stokesdale, Town ofStokesdale, NC1 of 32.23 ppt1,143
Stokes County Water & Sewer AuthorityDanbury, NC1 of 32.23 ppt420
Rocklyn Subdivision Phase 2Raleigh, NC1 of 32.23 ppt89
Yadkin County - East Bend*Yadkinville, NC1 of 32.23 ppt25
Mocksville, Town ofMocksville, NC1 of 12.10 ppt5,425
Davie County Water SystemMocksville, NC1 of 31.37 ppt29,947
Wrightsville Beach Water SystemWrightsville Beach, NC1 of 11.20 ppt6,380
Cape Fear Public Utility Authority - WilmingtonWilmington, NC1 of 110.1000 ppt153,202

* This water utility supplies finished drinking water to at least one other water utility. The purchasing utility is not required to test for or report Perfluorododecanoic acid (PFDoA), but it likely has the contaminant in its water supply.

UtilityLocationTestsAverage levelPeople served
City of Winston-Salem*Pfafftown, NC1 of 32.23 ppt371,063
Davie County Water SystemMocksville, NC1 of 31.37 ppt29,947
Cape Fear Public Utility Authority - WilmingtonWilmington, NC1 of 110.1000 ppt153,202

* This water utility supplies finished drinking water to at least one other water utility. The purchasing utility is not required to test for or report Perfluorododecanoic acid (PFDoA), but it likely has the contaminant in its water supply.