EWG's Tap Water Database — 2021 UPDATE


Dibromoacetic acid

Franklin County Rural Water District 2

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.





Samples exceeding legal limit (MCL)


Samples exceeding
health guidelines

Testing results - average by year

YearAverage resultSamples takenDetectionsRange of results
20141.20 ppb111.20 ppb
20150.680 ppb110.680 ppb
20161.40 ppb111.40 ppb
20170.880 ppb110.880 ppb
20181.01 ppb440.600 ppb - 1.50 ppb
20190.565 ppb42ND - 1.50 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
2014-08-041659671.20 ppb
2015-08-023775450.680 ppb
2016-08-186057911.40 ppb
2017-09-068326470.880 ppb
2018-02-059067301.50 ppb
2018-05-089674381.30 ppb
2018-08-0510207360.640 ppb
2018-11-0410705170.600 ppb
2019-05-1211572420.760 ppb
2019-11-1112744301.50 ppb