Know Your Environment. Protect Your Health.

Bromodichloromethane

Pardeeville Waterworks

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
20180.590 ppb110.590 ppb
2019ND10ND
20200.113 ppb41ND - 0.450 ppb
20210.840 ppb110.840 ppb
2022ND10ND
20230.525 ppb41ND - 2.10 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
2018-07-2310689870.590 ppb
2019-09-031144963ND
2020-05-20421557ND
2020-05-20421560ND
2020-05-20421565ND
2020-08-054572100.450 ppb
2021-09-0110442770.840 ppb
2022-07-201165784ND
2023-03-221302667ND
2023-03-221302663ND
2023-03-221302669ND
2023-07-1913505662.10 ppb