Know Your Environment. Protect Your Health.

Bromodichloromethane

Nicholson Borough Authority

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.

 

26

Samples

0

Samples exceeding legal limit (MCL)

18

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.633 ppb31ND - 1.90 ppb
2019ND20ND
20200.346 ppb73ND - 0.890 ppb
20210.830 ppb880.570 ppb - 1.17 ppb
20221.07 ppb440.640 ppb - 1.43 ppb
20230.860 ppb220.850 ppb - 0.870 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
2018-01-08L6990685-1ND
2018-01-08L6990685-2ND
2018-10-0870675910011.90 ppb
2019-01-077075990001ND
2019-10-0770108207001ND
2020-01-060.890 ppb
2020-04-070.720 ppb
2020-04-070.810 ppb
2020-07-08ND
2020-07-08ND
2020-10-08ND
2020-10-08ND
2021-03-230.920 ppb
2021-03-230.780 ppb
2021-04-260.800 ppb
2021-04-260.900 ppb
2021-07-060.900 ppb
2021-07-060.600 ppb
2021-10-050.570 ppb
2021-10-051.17 ppb
2022-01-051.43 ppb
2022-01-050.970 ppb
2022-04-060.640 ppb
2022-04-061.24 ppb
2023-01-090.850 ppb
2023-01-090.870 ppb