Know Your Environment. Protect Your Health.

Bromodichloromethane

Encinal Water Supply Corporation

Bromodichloromethane, one of the total trihalomethanes (TTHMs), is formed when chlorine or other disinfectants are used to treat drinking water. Bromodichloromethane and other disinfection byproducts increase the risk of cancer and may cause problems during pregnancy. Click here to read more about disinfection byproducts.

 

25

Samples

0

Samples exceeding legal limit (MCL)

13

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND30ND
2019ND30ND
20200.643 ppb73ND - 1.90 ppb
20211.25 ppb441.000 ppb - 1.50 ppb
20221.35 ppb43ND - 2.30 ppb
20234.75 ppb43ND - 16.0 ppb

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 0.06 ppb

The EWG Health Guideline of 0.06 ppb for bromodichloromethane was based on the California Office of Environmental Health Hazard Assessment's public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against cancer and harm to fetal growth and development.

ppb = parts per billion

All test results

Date Lab ID Result
2018-07-19AE33965ND
2018-07-19AE33973ND
2018-07-19AE33932ND
2019-09-26AE84814ND
2019-09-26AE84864ND
2019-12-11AE92154ND
2020-03-24AF04315ND
2020-03-24AF043171.20 ppb
2020-03-24AF04319ND
2020-06-08AF14804ND
2020-06-08AF148721.90 ppb
2020-07-20AF199321.40 ppb
2020-12-10AF37297ND
2021-08-04AF647691.40 ppb
2021-08-04AF648351.10 ppb
2021-08-04AF648371.50 ppb
2021-12-22AF792841.000 ppb
2022-09-29AG154472.30 ppb
2022-09-29AG15510ND
2022-09-29AG155121.60 ppb
2022-09-29AG155141.50 ppb
2023-09-14AG562511.40 ppb
2023-09-14AG56310ND
2023-09-14AG5631416.0 ppb
2023-09-14AG563181.60 ppb