Know Your Environment. Protect Your Health.

Dibromochloromethane

Holland Water 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.

 

8

Samples

0

Samples exceeding legal limit (MCL)

5

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.690 ppb220.610 ppb - 0.770 ppb
20190.280 ppb21ND - 0.560 ppb
20200.700 ppb110.700 ppb
2021ND10ND
2022ND10ND
20233.08 ppb113.08 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
2018-08-0818P0131110.770 ppb
2018-08-0818P0131100.610 ppb
2019-08-0819P011071 & 11415ND
2019-08-0819P011069 & 114160.560 ppb
2020-08-1120P0271820.700 ppb
2021-08-1121P008715&6ND
2022-08-0822P005224&35ND
2023-08-0723P005616&73.08 ppb