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EWG's Tap Water Database — 2021 UPDATE

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Dibromoacetic acid

Halfway Water Supply Corporation

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.

 

10

Samples

0

Samples exceeding legal limit (MCL)

3

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014N/A00N/A
2015N/A00N/A
20160.550 ppb21ND - 1.10 ppb
20170.250 ppb41ND - 1.000 ppb
2018ND30ND
20191.000 ppb111.000 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
2016-09-08Q1636368013ND
2016-12-06Q16529460011.10 ppb
2017-02-16Q1706830001ND
2017-05-04Q1718561001ND
2017-07-19Q1729667001ND
2017-10-04Q17487610061.000 ppb
2018-03-08Q1809643001ND
2018-05-17Q1820244010ND
2018-07-31Q1830261001ND
2019-07-17Q19455860041.000 ppb