Know Your Environment. Protect Your Health.

Bromodichloromethane

Waverly, City of

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)

7

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20181.25 ppb111.25 ppb
20190.360 ppb31ND - 1.08 ppb
20200.475 ppb21ND - 0.950 ppb
20211.24 ppb111.24 ppb
20220.607 ppb32ND - 1.10 ppb
20230.750 ppb21ND - 1.50 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
2018-08-305685201.25 ppb
2019-05-13612101ND
2019-05-13612102ND
2019-08-286284271.08 ppb
2020-05-18667026ND
2020-08-246898910.950 ppb
2021-08-237537831.24 ppb
2022-04-257930970.720 ppb
2022-04-25793096ND
2022-08-298161601.10 ppb
2023-06-20856223ND
2023-08-288802431.50 ppb