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EWG's Tap Water Database — 2021 UPDATE

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Dibromoacetic acid

Makawao

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.

MORE ABOUT THIS CONTAMINANT

 

80

Samples

0

Samples exceeding legal limit (MCL)

40

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014N/A00N/A
20150.250 ppb163ND - 1.40 ppb
2016ND160ND
20171.69 ppb1615ND - 2.50 ppb
20181.11 ppb169ND - 2.80 ppb
20191.34 ppb1613ND - 2.20 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
2015-01-142015011602301.30 ppb
2015-01-14201501160231ND
2015-01-142015011602321.30 ppb
2015-01-142015011602291.40 ppb
2015-04-09201504140803ND
2015-04-09201504140804ND
2015-04-10201504160269ND
2015-04-10201504160270ND
2015-07-17201507210218ND
2015-07-17201507210221ND
2015-07-17201507210219ND
2015-07-17201507210214ND
2015-10-08201510130657ND
2015-10-08201510130660ND
2015-10-08201510130661ND
2015-10-08201510130662ND
2016-01-07ND
2016-01-07ND
2016-01-07ND
2016-01-07ND
2016-04-14ND
2016-04-14ND
2016-04-14ND
2016-04-14ND
2016-07-15ND
2016-07-15ND
2016-07-15ND
2016-07-15ND
2016-10-06ND
2016-10-06ND
2016-10-06ND
2016-10-06ND
2017-01-121.60 ppb
2017-01-121.70 ppb
2017-01-12ND
2017-01-121.30 ppb
2017-04-062.00 ppb
2017-04-062.00 ppb
2017-04-061.50 ppb
2017-04-061.50 ppb
2017-07-132.00 ppb
2017-07-131.10 ppb
2017-07-132.00 ppb
2017-07-132.20 ppb
2017-10-062.50 ppb
2017-10-061.90 ppb
2017-10-061.60 ppb
2017-10-062.10 ppb
2018-01-112018011806652.80 ppb
2018-01-112018011806662.40 ppb
2018-01-112018011806671.20 ppb
2018-01-112018011806682.50 ppb
2018-04-05201804110013ND
2018-04-05201804110014ND
2018-04-05201804110016ND
2018-04-05201804110015ND
2018-07-02201807060504ND
2018-07-02201807060505ND
2018-07-022018070605021.60 ppb
2018-07-02201807060503ND
2018-10-042018100905261.70 ppb
2018-10-042018100905232.20 ppb
2018-10-042018100905241.80 ppb
2018-10-042018100905251.50 ppb
2019-01-03201901080086ND
2019-01-03201901080088ND
2019-01-03201901080087ND
2019-01-032019010800851.20 ppb
2019-04-022019040403902.10 ppb
2019-04-022019040403922.20 ppb
2019-04-022019040403932.00 ppb
2019-04-022019040403911.80 ppb
2019-07-262019073003211.80 ppb
2019-07-262019073003231.60 ppb
2019-07-262019073003221.80 ppb
2019-07-262019073003241.60 ppb
2019-10-032019100806091.50 ppb
2019-10-032019100806111.000 ppb
2019-10-032019100806101.50 ppb
2019-10-032019100806081.40 ppb