Know Your Environment. Protect Your Health.

Dibromochloromethane

Garfield Waterworks

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.

 

43

Samples

0

Samples exceeding legal limit (MCL)

9

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND50ND
20190.400 ppb62ND - 1.20 ppb
2020ND80ND
20210.388 ppb83ND - 1.10 ppb
2022ND80ND
20230.664 ppb84ND - 1.50 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
2018-04-2418116004202ND
2018-07-2318207004602ND
2018-07-2318207004502ND
2018-11-2718332005301ND
2018-11-2718332005501ND
2019-01-22190240070021.20 ppb
2019-01-22190240068021.20 ppb
2019-04-1619108009002ND
2019-04-1619108009202ND
2019-07-1619198003702ND
2019-07-1619198003902ND
2020-01-2220023010302ND
2020-01-2220023010402ND
2020-04-1420107009402ND
2020-04-1420107009502ND
2020-07-1420198014902ND
2020-07-1420198015002ND
2020-10-1320289001502ND
2020-10-1320289001602ND
2021-01-12210140122021.000 ppb
2021-01-1221014012302ND
2021-04-1321105017302ND
2021-04-1321105017202ND
2021-07-1321196011402ND
2021-07-1321196011502ND
2021-10-12212870100021.10 ppb
2021-10-12212870101021.000 ppb
2022-01-1222014002802ND
2022-01-1222014002902ND
2022-04-12O196901-THM-1ND
2022-04-12O196902-THM-1ND
2022-07-12O199595-THM-1ND
2022-07-12O199596-THM-1ND
2022-10-11O202612-THM-1ND
2022-10-11O202611-THM-1ND
2023-01-10O205031-THM-11.35 ppb
2023-01-10O205030-THM-11.26 ppb
2023-04-11O207782-THM-1ND
2023-04-11O207781-THM-1ND
2023-07-11O210532-THM-1ND
2023-07-11O210531-THM-1ND
2023-10-10O212909-THM-11.50 ppb
2023-10-10O212908-THM-11.20 ppb