Menu

EWG's Tap Water Database — 2021 UPDATE

Donate

Chlorodibromoacetic acid

Deepwater PWS

Chlorodibromoacetic acid is formed when chlorine or other disinfectants are used to treat drinking water. Disinfection byproducts increase the risk of cancer and may cause problems during pregnancy.

 

14

Samples

0

Samples exceeding legal limit (MCL)

2

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND10ND
2015ND20ND
2016ND40ND
2017ND40ND
20181.10 ppb21ND - 2.19 ppb
20193.59 ppb113.59 ppb

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.02 ppb

The EWG Health Guideline of 0.02 ppb for chlorodibromoacetic 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
2014-08-18AC33074ND
2015-08-08AC57260ND
2015-11-13AC62683ND
2016-02-04AC66225ND
2016-05-18AC71918ND
2016-09-07AC83731ND
2016-11-11AC86817ND
2017-02-10AC90686ND
2017-05-03AC95656ND
2017-08-02AD03220ND
2017-11-20AD09369ND
2018-02-20AD141562.19 ppb
2018-08-13AD31045ND
2019-08-14AD537663.59 ppb