Know Your Environment. Protect Your Health.

Bromodichloromethane

Shelton 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.

 

17

Samples

0

Samples exceeding legal limit (MCL)

12

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20182.40 ppb220.500 ppb - 4.30 ppb
20190.960 ppb54ND - 1.90 ppb
2020N/A00N/A
20211.56 ppb63ND - 5.10 ppb
20220.855 ppb21ND - 1.71 ppb
20231.86 ppb220.730 ppb - 2.99 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
2018-11-144.30 ppb
2018-11-140.500 ppb
2019-05-141.90 ppb
2019-05-140.600 ppb
2019-07-11ND
2019-11-050.500 ppb
2019-11-051.80 ppb
2021-03-174166785ND
2021-08-114179084ND
2021-11-0842798565.10 ppb
2021-11-084279857ND
2021-12-0142183993.70 ppb
2021-12-0142183970.540 ppb
2022-12-1343903621.71 ppb
2022-12-134390361ND
2023-12-0745600280.730 ppb
2023-12-0745600292.99 ppb