Know Your Environment. Protect Your Health.

Bromodichloromethane

Port Orchard Water Department

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.

 

22

Samples

0

Samples exceeding legal limit (MCL)

17

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20181.13 ppb440.500 ppb - 1.80 ppb
20191.60 ppb54ND - 2.60 ppb
2020N/A00N/A
20211.47 ppb440.640 ppb - 2.60 ppb
20221.78 ppb54ND - 3.00 ppb
20230.775 ppb41ND - 3.10 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
2018-08-211.20 ppb
2018-08-211.000 ppb
2018-08-210.500 ppb
2018-08-211.80 ppb
2019-05-22ND
2019-08-262.00 ppb
2019-08-261.50 ppb
2019-08-261.90 ppb
2019-08-262.60 ppb
2021-08-2441673742.60 ppb
2021-08-2441673750.830 ppb
2021-08-2441673760.640 ppb
2021-08-2441673771.80 ppb
2022-03-174260748ND
2022-08-0943282732.00 ppb
2022-08-0943282703.00 ppb
2022-08-0943282721.90 ppb
2022-08-0943282712.00 ppb
2023-05-014452810ND
2023-05-014452811ND
2023-08-0845055793.10 ppb
2023-08-084505580ND