Know Your Environment. Protect Your Health.

Dibromochloromethane

Treasure Island

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.

 

32

Samples

0

Samples exceeding legal limit (MCL)

2

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018N/A00N/A
2019N/A00N/A
2020ND80ND
2021ND80ND
2022ND80ND
20230.359 ppb82ND - 1.54 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
2020-01-07CA3810702_DST_801-202001071016ND
2020-01-07CA3810702_DST_802-202001071054ND
2020-04-07CA3810702_DST_802-202004070725ND
2020-04-07CA3810702_DST_801-202004070830ND
2020-07-07CA3810702_DST_802-202007070849ND
2020-07-07CA3810702_DST_801-202007071027ND
2020-10-06CA3810702_DST_801-202010061106ND
2020-10-06CA3810702_DST_802-202010060917ND
2021-01-05CA3810702_DST_801-202101050805ND
2021-01-05CA3810702_DST_802-202101050722ND
2021-04-06CA3810702_DST_801-202104060802ND
2021-04-06CA3810702_DST_802-202104060729ND
2021-07-06CA3810702_DST_802-202107060824ND
2021-07-06CA3810702_DST_801-202107061006ND
2021-10-05CA3810702_DST_801-202110050828ND
2021-10-05CA3810702_DST_802-202110050737ND
2022-01-05CA3810702_DST_801-202201051025ND
2022-01-05CA3810702_DST_802-202201051015ND
2022-04-05CA3810702_DST_802-202204050813ND
2022-04-05CA3810702_DST_801-202204050905ND
2022-07-05CA3810702_DST_801-202207051008ND
2022-07-05CA3810702_DST_802-202207051008ND
2022-10-04CA3810702_DST_802-202210040725ND
2022-10-04CA3810702_DST_801-202210040745ND
2023-01-03CA3810702_DST_801-202301030925ND
2023-01-03CA3810702_DST_802-202301030810ND
2023-04-04CA3810702_DST_801-2023040411161.33 ppb
2023-04-04CA3810702_DST_802-2023040409221.54 ppb
2023-07-04CA3810702_DST_801-202307040945ND
2023-07-04CA3810702_DST_802-202307040843ND
2023-10-03CA3810702_DST_802-202310030843ND
2023-10-03CA3810702_DST_801-202310030945ND