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EWG's Tap Water Database — 2021 UPDATE

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Bromochloroacetic acid

Howard County Cons Public Water Supply District 1

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

 

33

Samples

0

Samples exceeding legal limit (MCL)

28

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20146.31 ppb226.28 ppb - 6.34 ppb
20155.24 ppb225.23 ppb - 5.24 ppb
20166.93 ppb226.65 ppb - 7.20 ppb
20175.63 ppb663.45 ppb - 8.80 ppb
20185.78 ppb772.32 ppb - 8.88 ppb
20192.35 ppb149ND - 5.77 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 bromochloroacetic 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
2014-06-30AC287096.28 ppb
2014-06-30AC287086.34 ppb
2015-07-10AC557335.24 ppb
2015-07-10AC557325.23 ppb
2016-06-27AC749297.20 ppb
2016-06-27AC749306.65 ppb
2017-06-27AC985277.98 ppb
2017-06-27AC985288.80 ppb
2017-09-25AD075093.45 ppb
2017-09-25AD075084.22 ppb
2017-12-18AD106534.63 ppb
2017-12-18AD106544.71 ppb
2018-03-21AD165314.59 ppb
2018-03-21AD165322.32 ppb
2018-06-27AD273438.88 ppb
2018-06-27AD273442.36 ppb
2018-10-01AD341417.84 ppb
2018-10-01AD329666.77 ppb
2018-10-01AD329657.73 ppb
2019-01-08AD38619ND
2019-01-08AD386203.11 ppb
2019-03-25AD405565.77 ppb
2019-03-25AD405572.37 ppb
2019-03-25AD40558ND
2019-06-17AD491584.94 ppb
2019-06-17AD491594.43 ppb
2019-06-17AD49157ND
2019-09-16AD552403.34 ppb
2019-09-16AD552423.74 ppb
2019-09-16AD552412.36 ppb
2019-12-16AD59145ND
2019-12-16AD59146ND
2019-12-16AD591472.87 ppb