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EWG's Tap Water Database — 2019 UPDATE

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Dibromoacetic acid

Waterloo Water Works

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.

 

28

Samples

0

Samples exceeding legal limit (MCL)

15

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20120.528 ppb83ND - 1.66 ppb
20130.501 ppb126ND - 1.71 ppb
2014ND20ND
20150.970 ppb220.930 ppb - 1.01 ppb
20161.10 ppb220.980 ppb - 1.22 ppb
20171.28 ppb221.06 ppb - 1.49 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
2012-07-1919188191.05 ppb
2012-07-1919188171.51 ppb
2012-07-1919188181.66 ppb
2012-07-191918820ND
2012-10-311944629ND
2012-10-311944627ND
2012-10-311944628ND
2012-10-311944630ND
2013-01-221958027ND
2013-01-2219580261.71 ppb
2013-01-221958025ND
2013-01-2219580241.52 ppb
2013-04-111973814ND
2013-04-111973817ND
2013-04-111973816ND
2013-04-1119738150.500 ppb
2013-07-1819930491.000 ppb
2013-07-1819930500.620 ppb
2013-07-1819930510.660 ppb
2013-07-181993052ND
2014-07-162065521ND
2014-07-162065520ND
2015-07-071G50517-020.930 ppb
2015-07-071G50517-011.01 ppb
2016-07-201G61634-011.22 ppb
2016-07-201G61634-020.980 ppb
2017-07-111G70795-021.06 ppb
2017-07-111G70795-011.49 ppb