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EWG's Tap Water Database — 2021 UPDATE

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Perfluorododecanoic acid (PFDoA)

Merrimack Village District

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.

MORE ABOUT THIS CONTAMINANT

 

209

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014N/A00N/A
2015N/A00N/A
2016ND1000ND
2017ND140ND
2018ND440ND
2019ND510ND

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 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

All test results

Date Lab ID Result
2016-03-09K1602447-004ND
2016-03-09K1602447-001ND
2016-03-09K1602447-002ND
2016-03-09K1602447-003ND
2016-03-31K1603194-001ND
2016-03-31K1603194-004ND
2016-03-31K1603194-005ND
2016-03-31K1603194-006ND
2016-03-31K1603194-002ND
2016-03-31K1603194-003ND
2016-04-07K1603528-001ND
2016-04-07K1603528-004ND
2016-04-07K1603528-005ND
2016-04-07K1603528-003ND
2016-04-07K1603528-002ND
2016-04-14K1603866-001ND
2016-04-14K1603866-005ND
2016-04-14K1603866-003ND
2016-04-14K1603866-006ND
2016-04-14K1603866-002ND
2016-04-14K1603866-004ND
2016-04-21K1604106-001ND
2016-04-21K1604106-004ND
2016-04-21K1604106-006ND
2016-04-21K1604106-002ND
2016-04-21K1604106-005ND
2016-04-21K1604106-003ND
2016-04-28K1604467-001ND
2016-04-28K1604467-006ND
2016-04-28K1604467-002ND
2016-04-28K1604467-003ND
2016-04-28K1604467-004ND
2016-04-28K1604467-005ND
2016-05-05K1604775-005ND
2016-05-05K1604775-004ND
2016-05-05K1604775-006ND
2016-05-05K1604775-003ND
2016-05-05K1604775-001ND
2016-05-05K1604775-002ND
2016-05-12K1604985-001ND
2016-05-12K1604985-003ND
2016-05-12K1604985-004ND
2016-05-12K1604985-005ND
2016-05-12K1604985-006ND
2016-05-12K1604985-002ND
2016-06-30K1607569-003ND
2016-06-30K1607569-002ND
2016-06-30K1607569-004ND
2016-06-30K1607569-001ND
2016-07-07K1607618-001ND
2016-07-07K1607621-004ND
2016-07-07K1607618-002ND
2016-07-07K1607621-003ND
2016-07-07K1607618-003ND
2016-07-07K1607618-004ND
2016-07-07K1607621-001ND
2016-08-18K1609928-001ND
2016-08-18K1609928-002ND
2016-08-18K1609928-003ND
2016-08-18K1609928-004ND
2016-09-01K1610468-003ND
2016-09-01K1610468-002ND
2016-09-01K1610468-001ND
2016-09-07K1610695-001ND
2016-09-15K1611036-002ND
2016-09-15K1611036-004ND
2016-09-15K1611036-001ND
2016-09-15K1611036-003ND
2016-09-29K1611858-003ND
2016-09-29K1611858-004ND
2016-09-29K1611858-001ND
2016-09-29K1611858-002ND
2016-10-13K1612679-004ND
2016-10-13K1612679-001ND
2016-10-13K1612679-002ND
2016-10-13K1612679-003ND
2016-10-27K1613253-004ND
2016-10-27K1613253-001ND
2016-10-27K1613253-002ND
2016-10-27K1613253-003ND
2016-11-10K1613978-002ND
2016-11-10K1613978-003ND
2016-11-10K1613978-004ND
2016-11-10K1613978-001ND
2016-11-16K1614222-002ND
2016-11-16K1614222-001ND
2016-11-16K1614222-003ND
2016-11-16K1614222-004ND
2016-12-01K1614633-003ND
2016-12-01K1614633-002ND
2016-12-01K1614633-001ND
2016-12-01K1614633-004ND
2016-12-15K1615281-002ND
2016-12-15K1615281-004ND
2016-12-15K1615281-003ND
2016-12-15K1615281-001ND
2016-12-28K1615500-002ND
2016-12-28K1615500-003ND
2016-12-28K1615500-004ND
2016-12-28K1615500-001ND
2017-01-12K1700420-001ND
2017-01-12K1700420-002ND
2017-01-12K1700420-003ND
2017-01-12K1700420-004ND
2017-01-26K1700898-001ND
2017-01-26K1700898-003ND
2017-01-26K1700898-002ND
2017-01-26K1700898-004ND
2017-02-09K1701387-003ND
2017-02-09K1701387-002ND
2017-02-09K1701387-004ND
2017-02-09K1701387-001ND
2017-03-098888464ND
2017-03-098888465ND
2018-02-159463595ND
2018-02-159463598ND
2018-02-159463596ND
2018-02-159463597ND
2018-03-229520793ND
2018-03-229520792ND
2018-03-229520791ND
2018-03-229520794ND
2018-04-199569128ND
2018-04-199569131ND
2018-04-199569129ND
2018-04-199569130ND
2018-05-299633892ND
2018-05-299633894ND
2018-05-299633891ND
2018-05-299633893ND
2018-06-219674401ND
2018-06-219674400ND
2018-06-219674399ND
2018-06-219674402ND
2018-07-199714346ND
2018-07-199714347ND
2018-07-199714348ND
2018-07-199714345ND
2018-08-239771171ND
2018-08-239771169ND
2018-08-239771168ND
2018-08-239771170ND
2018-09-199812471ND
2018-09-199812472ND
2018-09-199812474ND
2018-09-199812473ND
2018-10-259870341ND
2018-10-259870339ND
2018-10-259870342ND
2018-10-259870340ND
2018-11-209909748ND
2018-11-209909746ND
2018-11-209909747ND
2018-11-209909749ND
2018-12-209952848ND
2018-12-209952847ND
2018-12-209952845ND
2018-12-209952846ND
2019-01-179970055ND
2019-01-179970058ND
2019-01-179970056ND
2019-01-179970057ND
2019-02-279995194ND
2019-02-279995195ND
2019-02-279995193ND
2019-02-279995192ND
2019-03-211015519ND
2019-03-211015516ND
2019-03-211015517ND
2019-03-211015518ND
2019-04-181039203ND
2019-04-181039204ND
2019-04-181039206ND
2019-04-181039205ND
2019-05-231066178ND
2019-05-231066177ND
2019-05-231066180ND
2019-05-231066179ND
2019-06-141081921ND
2019-06-141081924ND
2019-06-141081923ND
2019-06-141081922ND
2019-07-251112057ND
2019-07-251112056ND
2019-07-251112055ND
2019-07-251112058ND
2019-08-291141764ND
2019-08-291141763ND
2019-08-291141762ND
2019-08-291141761ND
2019-09-261163105ND
2019-09-261163106ND
2019-09-261163104ND
2019-09-261163107ND
2019-10-221183118ND
2019-10-221183119ND
2019-10-221183120ND
2019-10-221183121ND
2019-10-221183122ND
2019-11-211210356ND
2019-11-211210357ND
2019-11-211210358ND
2019-11-211210359ND
2019-11-211210360ND
2019-12-191228461ND
2019-12-191228462ND
2019-12-191228463ND
2019-12-191228464ND
2019-12-191228465ND