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EWG's Tap Water Database — 2021 UPDATE

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6:2 Fluorotelomer Sulfonic Acid (6:2 FTSA)

Status: No national drinking water standard exists

 

6:2 Fluorotelomer Sulfonic Acid (6:2 FTSA) is a member of a class of chemicals called per- and polyfluoroalkyl substances or PFAS. These chemicals were used in the production of non-stick, stain repellent and chemically inert coatings. Click here to read more about perfluorinated chemicals.

2017-2019:

FOUND
FOUND ABOVE HEALTH GUIDELINES

2

states detected

13

utilities detected

198,000

people served

0

states over health guideline

0

utilities over health guideline

0

people served over health guideline

Health concerns for 6:2 fluorotelomer sulfonic acid (6:2 FTSA)

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 6:2 fluorotelomer sulfonic acid (6:2 FTSA) 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 protects against applies to the entire class of PFAS detected in water.

ppt = parts per trillion

States reporting 6:2 fluorotelomer sulfonic acid (6:2 FTSA) in drinking water

UTILITIES WITH CONTAMINATION
State UtilitiesPeople Served
North Carolina12198,073
New Hampshire1112
MORE
LESS

Filtering technologies that reduce 6:2 fluorotelomer sulfonic acid (6:2 FTSA)

Activated Carbon

Reverse Osmosis

Utilities with the highest amounts of 6:2 fluorotelomer sulfonic acid (6:2 FTSA) , 2017-2019

ALL UTILITIES
LARGE UTILITIES
UtilityLocationTestsAverage levelPeople served
Brevard, City ofBrevard, NC1 of 112.6 ppt10,686
Martin County Water & Sewer District IWilliamston, NC1 of 19.00 ppt2,205
Harrisburg*Harrisburg, NC1 of 13.90 ppt17,127
Freedom PondNew Ipswich, NH1 of 12.53 ppt112
Neuse Regional Water and Sewer Authority*La Grange, NC1 of 11.80 ppt93,238
Edenton, Town ofEdenton, NC1 of 11.10 ppt5,500
Ahoskie, Town ofAhoskie, NC1 of 11.10 ppt5,479
Tyrrell County WaterColumbia, NC1 of 11.10 ppt3,177
Cabot PreserveMerrimack, NH5 of 1590.601 ppt955
Merrimack Village District*Merrimack, NH5 of 1590.601 ppt25,000

* 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 6:2 Fluorotelomer Sulfonic Acid (6:2 FTSA) , but it likely has the contaminant in its water supply.

UtilityLocationTestsAverage levelPeople served
Brevard, City ofBrevard, NC1 of 112.6 ppt10,686
Harrisburg*Harrisburg, NC1 of 13.90 ppt17,127
Neuse Regional Water and Sewer Authority*La Grange, NC1 of 11.80 ppt93,238
Merrimack Village District*Merrimack, NH5 of 1590.601 ppt25,000

* 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 6:2 Fluorotelomer Sulfonic Acid (6:2 FTSA) , but it likely has the contaminant in its water supply.