Know Your Environment. Protect Your Health.

Bromochloroacetic acid

City of Dorchester

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.

 

6

Samples

0

Samples exceeding legal limit (MCL)

3

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20181.40 ppb111.40 ppb
20191.40 ppb111.40 ppb
2020ND10ND
2021ND10ND
20221.30 ppb111.30 ppb
2023ND10ND

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

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
2018-07-05Q18266280081.40 ppb
2019-08-13Q19542350091.40 ppb
2020-09-15Q2036541001ND
2021-09-20Q2125598008ND
2022-06-29Q22183700051.30 ppb
2023-05-23Q2319370001ND