Know Your Environment. Protect Your Health.

Dibromochloromethane

Four Way Special Utility District

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.

 

36

Samples

0

Samples exceeding legal limit (MCL)

26

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20188.49 ppb64ND - 24.7 ppb
201911.1 ppb64ND - 36.5 ppb
202020.9 ppb661.18 ppb - 52.4 ppb
20218.20 ppb64ND - 28.0 ppb
20228.02 ppb64ND - 32.9 ppb
202310.4 ppb64ND - 38.1 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
2018-03-08Q1809770011ND
2018-03-08Q18097700134.04 ppb
2018-03-08Q180977001524.7 ppb
2018-03-08Q180977001012.2 ppb
2018-09-18Q183744900110.00 ppb
2018-09-18Q1837449002ND
2019-06-04Q193118901614.6 ppb
2019-06-04Q1931189017ND
2019-06-04Q193118901136.5 ppb
2019-06-04Q19311890093.55 ppb
2019-06-04Q1931189007ND
2019-06-04Q193118900511.7 ppb
2020-06-17Q202464400414.9 ppb
2020-06-17Q202464401112.6 ppb
2020-06-17Q20246440121.18 ppb
2020-08-11Q203179700752.4 ppb
2020-08-11Q203179700913.2 ppb
2020-08-11Q203179701130.9 ppb
2021-06-02Q21142090049.61 ppb
2021-06-02Q211420901028.0 ppb
2021-06-02Q2114209008ND
2021-06-02Q2114209006ND
2021-09-14Q212501800110.5 ppb
2021-09-14Q21250180021.08 ppb
2022-03-07Q22076190085.66 ppb
2022-03-07Q2207619010ND
2022-03-07Q2207619012ND
2022-03-07Q220761901432.9 ppb
2022-08-08Q22227480018.34 ppb
2022-08-08Q22227480021.19 ppb
2023-04-24Q23152290048.07 ppb
2023-06-05Q232082601112.1 ppb
2023-06-05Q2320826012ND
2023-06-05Q2320826020ND
2023-06-05Q23208260224.03 ppb
2023-06-05Q232082602438.1 ppb