Know Your Environment. Protect Your Health.

Bromodichloromethane

Eagles Bluff

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.

 

12

Samples

0

Samples exceeding legal limit (MCL)

4

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20181.21 ppb221.06 ppb - 1.35 ppb
2019ND20ND
20200.785 ppb21ND - 1.57 ppb
20210.575 ppb21ND - 1.15 ppb
2022ND20ND
2023ND20ND

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
2018-09-13Q18366350011.35 ppb
2018-10-25Q18431020011.06 ppb
2019-09-19Q1968028001ND
2019-12-04Q1979199001ND
2020-09-11Q20363280011.57 ppb
2020-10-29Q2041778001ND
2021-09-09Q2124654005ND
2021-09-09Q21246540081.15 ppb
2022-08-25Q2225374001ND
2022-10-21Q2232013002ND
2023-03-14Q2310025001ND
2023-07-27Q2330262001ND