Know Your Environment. Protect Your Health.

Bromochloroacetic acid

Clayton Water Supply Corporation Plant 3 and 7

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.

 

24

Samples

0

Samples exceeding legal limit (MCL)

12

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20183.53 ppb43ND - 6.20 ppb
20193.70 ppb442.20 ppb - 5.80 ppb
20202.93 ppb43ND - 5.60 ppb
2021ND40ND
2022ND40ND
20231.10 ppb42ND - 2.90 ppb

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
2018-02-22Q18076150015.90 ppb
2018-05-24Q18209430016.20 ppb
2018-08-23Q1833946008ND
2018-12-14Q18517840012.00 ppb
2019-02-05Q19052140052.20 ppb
2019-04-30Q19172520013.00 ppb
2019-08-26Q19592710013.80 ppb
2019-12-17Q19803330015.80 ppb
2020-03-05Q20083420055.60 ppb
2020-05-27Q20208390014.10 ppb
2020-09-22Q20375330012.00 ppb
2020-12-03Q2048553001ND
2021-02-24Q2104970001ND
2021-04-29Q2110985001ND
2021-09-28Q2126521006ND
2021-12-02Q2133315001ND
2022-02-01Q2203638001ND
2022-04-12Q2211209001ND
2022-09-13Q2227119001ND
2022-11-03Q2233353006ND
2023-02-16Q23065370012.90 ppb
2023-05-03Q23168000011.50 ppb
2023-07-27Q2330270005ND
2023-10-17Q2344249001ND