Know Your Environment. Protect Your Health.

Dibromochloromethane

Sumner City Of

Dibromochloromethane, one of the total trihalomethanes (TTHMs), is formed when chlorine or other disinfectants are used to treat drinking water. Dibromochloromethane and other disinfection byproducts increase the risk of cancer and may cause problems during pregnancy. Click here to read more about disinfection byproducts.

 

18

Samples

0

Samples exceeding legal limit (MCL)

10

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.540 ppb32ND - 0.910 ppb
20190.695 ppb21ND - 1.39 ppb
2020N/A00N/A
20210.693 ppb32ND - 1.39 ppb
20220.428 ppb63ND - 1.17 ppb
20230.645 ppb42ND - 1.80 ppb

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 0.1 ppb

The EWG Health Guideline of 0.1 ppb for dibromochloromethane 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
2018-08-13ND
2018-09-050.910 ppb
2018-09-060.710 ppb
2019-07-19ND
2019-09-111.39 ppb
2021-05-194122779ND
2021-09-1541799030.690 ppb
2021-09-1541799021.39 ppb
2022-09-1343625570.660 ppb
2022-09-1343625551.17 ppb
2022-09-144363169ND
2022-09-1443631300.740 ppb
2022-09-144363131ND
2022-09-144363131ND
2023-07-314509859ND
2023-07-314509859ND
2023-09-2245315631.80 ppb
2023-09-2245315640.780 ppb