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EWG's Tap Water Database — 2021 UPDATE

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Perfluorobutanoic Acid (PFBA)

Merrimack Village District

Perfluorobutanoic acid (PFBA) 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

 

154

Samples

0

Samples exceeding legal limit (MCL)

45

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014N/A00N/A
2015N/A00N/A
20160.538 ppt933ND - 28.0 ppt
20177.14 ppt141ND - 100.0 ppt
2018N/A00N/A
20193.06 ppt4741ND - 7.00 ppt

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 perfluorobutanoic acid 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

All test results

Date Lab ID Result
2016-03-09K1602447-002ND
2016-03-09K1602447-001ND
2016-03-09K1602447-003ND
2016-03-09K1602447-004ND
2016-03-31K1603194-006ND
2016-03-31K1603194-001ND
2016-03-31K1603194-005ND
2016-03-31K1603194-002ND
2016-03-31K1603194-003ND
2016-03-31K1603194-004ND
2016-04-07K1603528-003ND
2016-04-07K1603528-001ND
2016-04-07K1603528-004ND
2016-04-07K1603528-005ND
2016-04-07K1603528-002ND
2016-04-14K1603866-001ND
2016-04-14K1603866-004ND
2016-04-14K1603866-003ND
2016-04-14K1603866-002ND
2016-04-14K1603866-005ND
2016-04-14K1603866-006ND
2016-04-21K1604106-001ND
2016-04-21K1604106-002ND
2016-04-21K1604106-004ND
2016-04-21K1604106-006ND
2016-04-21K1604106-005ND
2016-04-21K1604106-003ND
2016-04-28K1604467-004ND
2016-04-28K1604467-003ND
2016-04-28K1604467-001ND
2016-04-28K1604467-005ND
2016-04-28K1604467-002ND
2016-04-28K1604467-006ND
2016-05-05K1604775-003ND
2016-05-05K1604775-006ND
2016-05-05K1604775-005ND
2016-05-05K1604775-004ND
2016-05-05K1604775-00211.0 ppt
2016-05-05K1604775-001ND
2016-05-12K1604985-002ND
2016-05-12K1604985-005ND
2016-05-12K1604985-004ND
2016-05-12K1604985-003ND
2016-05-12K1604985-001ND
2016-05-12K1604985-006ND
2016-06-30K1607569-001ND
2016-06-30K1607569-004ND
2016-06-30K1607569-003ND
2016-06-30K1607569-002ND
2016-07-07K1607621-001ND
2016-07-07K1607618-002ND
2016-07-07K1607618-001ND
2016-07-07K1607621-004ND
2016-07-07K1607618-00428.0 ppt
2016-07-07K1607618-003ND
2016-07-07K1607621-003ND
2016-08-18K1609928-001ND
2016-08-18K1609928-002ND
2016-08-18K1609928-003ND
2016-08-18K1609928-004ND
2016-09-07K1610695-001ND
2016-09-29K1611858-001ND
2016-09-29K1611858-002ND
2016-09-29K1611858-003ND
2016-09-29K1611858-004ND
2016-10-13K1612679-001ND
2016-10-13K1612679-003ND
2016-10-13K1612679-002ND
2016-10-13K1612679-004ND
2016-10-27K1613253-001ND
2016-10-27K1613253-002ND
2016-10-27K1613253-004ND
2016-10-27K1613253-003ND
2016-11-10K1613978-002ND
2016-11-10K1613978-001ND
2016-11-10K1613978-003ND
2016-11-10K1613978-004ND
2016-11-16K1614222-004ND
2016-11-16K1614222-003ND
2016-11-16K1614222-002ND
2016-11-16K1614222-00111.0 ppt
2016-12-01K1614633-004ND
2016-12-01K1614633-001ND
2016-12-01K1614633-002ND
2016-12-01K1614633-003ND
2016-12-15K1615281-001ND
2016-12-15K1615281-003ND
2016-12-15K1615281-004ND
2016-12-15K1615281-002ND
2016-12-28K1615500-002ND
2016-12-28K1615500-001ND
2016-12-28K1615500-003ND
2016-12-28K1615500-004ND
2017-01-12K1700420-003ND
2017-01-12K1700420-001ND
2017-01-12K1700420-002100.0 ppt
2017-01-12K1700420-004ND
2017-01-26K1700898-001ND
2017-01-26K1700898-004ND
2017-01-26K1700898-002ND
2017-01-26K1700898-003ND
2017-02-09K1701387-001ND
2017-02-09K1701387-002ND
2017-02-09K1701387-003ND
2017-02-09K1701387-004ND
2017-03-098888465ND
2017-03-098888464ND
2019-02-2799951935.40 ppt
2019-02-2799951941.80 ppt
2019-02-279995195ND
2019-02-279995192ND
2019-03-2110155191.90 ppt
2019-03-2110155182.30 ppt
2019-03-2110155175.30 ppt
2019-03-211015516ND
2019-04-1810392045.60 ppt
2019-04-1810392052.40 ppt
2019-04-1810392031.80 ppt
2019-04-1810392061.80 ppt
2019-05-2310661787.00 ppt
2019-05-2310661792.00 ppt
2019-05-2310661771.90 ppt
2019-05-2310661801.70 ppt
2019-06-141081921ND
2019-06-1410819242.00 ppt
2019-06-1410819226.50 ppt
2019-06-1410819232.30 ppt
2019-07-2511120567.00 ppt
2019-07-2511120582.10 ppt
2019-07-2511120552.70 ppt
2019-07-2511120572.50 ppt
2019-08-2911417615.40 ppt
2019-08-2911417624.90 ppt
2019-08-291141764ND
2019-08-2911417632.20 ppt
2019-09-2611631055.30 ppt
2019-09-261163107ND
2019-09-2611631045.20 ppt
2019-09-2611631062.30 ppt
2019-10-2211831182.30 ppt
2019-10-2211831191.80 ppt
2019-10-2211831205.70 ppt
2019-10-2211831215.10 ppt
2019-10-2211831221.80 ppt
2019-11-2112103564.90 ppt
2019-11-2112103576.50 ppt
2019-11-2112103582.80 ppt
2019-11-2112103592.20 ppt
2019-11-2112103602.60 ppt
2019-12-1912284614.20 ppt
2019-12-1912284625.90 ppt
2019-12-1912284632.30 ppt
2019-12-1912284641.90 ppt
2019-12-1912284652.30 ppt