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EWG's Tap Water Database — 2021 UPDATE

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Dibromoacetic acid

Ames Water Treatment Plant

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.

 

20

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
2014ND100ND
2015ND20ND
2016ND20ND
2017ND20ND
2018ND20ND
2019ND20ND

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
2014-01-142030425ND
2014-01-142030426ND
2014-01-142030427ND
2014-01-142030424ND
2014-04-082044973ND
2014-04-082044974ND
2014-04-082044975ND
2014-04-082044977ND
2014-07-082062143ND
2014-07-082062144ND
2015-07-14OE268066ND
2015-07-14OE268065ND
2016-07-05OE396882ND
2016-07-05OE396883ND
2017-07-13OE537482ND
2017-07-13OE537483ND
2018-07-09OE680802ND
2018-07-09OE680803ND
2019-07-16OE835975ND
2019-07-16OE835976ND