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EWG's Tap Water Database — 2019 UPDATE

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Dibromoacetic acid

Exeter Water Department

Dibromoacetic acid, one of the group of five haloacetic acids regulated by federal standards, is formed when chlorine or other disinfectants are used to treat drinking water. Haloacetic acids and other disinfection byproducts increase the risk of cancer and may cause problems during pregnancy. Click here to read more about disinfection byproducts.

 

32

Samples

0

Samples exceeding legal limit (MCL)

12

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012N/A00N/A
2013N/A00N/A
2014N/A00N/A
2015N/A00N/A
20160.500 ppb166ND - 1.80 ppb
20170.538 ppb166ND - 1.60 ppb

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.04 ppb

The EWG Health Guideline of 0.04 ppb for dibromoacetic acid was defined in a peer-reviewed scientific study by EWG and represents a on-in-a-million lifetime cancer risk level. This health guideline protects against cancer.

ppb = parts per billion

All test results

Date Lab ID Result
2016-01-07152001.01ND
2016-01-07152001.02ND
2016-01-07152001.03ND
2016-01-07152001.04ND
2016-04-07154593.041.10 ppb
2016-04-07154593.031.30 ppb
2016-04-07154593.02ND
2016-04-07154593.01ND
2016-07-12158235.041.10 ppb
2016-07-12158235.031.30 ppb
2016-07-12158235.02ND
2016-07-12158235.01ND
2016-10-04161295.01ND
2016-10-04161295.021.40 ppb
2016-10-04161295.03ND
2016-10-04161295.041.80 ppb
2017-01-03164395.041.50 ppb
2017-01-03164395.031.40 ppb
2017-01-03164395.01ND
2017-01-04164395.02ND
2017-04-04167212.011.20 ppb
2017-04-04167212.02ND
2017-04-04167212.031.60 ppb
2017-04-04167212.041.40 ppb
2017-07-11170939.01ND
2017-07-11170939.03ND
2017-07-12170939.041.50 ppb
2017-07-12170939.02ND
2017-10-03174237.01ND
2017-10-03174237.03ND
2017-10-03174237.04ND
2017-10-04174237.02ND