Know Your Environment. Protect Your Health.

Dibromochloromethane

Gcwsd Garden City Point (sc2220011)

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.

 

48

Samples

0

Samples exceeding legal limit (MCL)

6

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.339 ppb82ND - 1.36 ppb
20190.404 ppb82ND - 1.74 ppb
2020ND80ND
2021ND80ND
2022ND80ND
20230.313 ppb82ND - 1.30 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
2018-01-162180117-43ND
2018-01-162180117-44ND
2018-04-172180418-63ND
2018-04-172180418-64ND
2018-07-182180719-05ND
2018-07-182180719-06ND
2018-10-162181017-061.36 ppb
2018-10-162181017-051.35 ppb
2019-01-222190123-06ND
2019-01-222190123-05ND
2019-06-102190611-05ND
2019-06-102190611-06ND
2019-07-172190718-42ND
2019-07-172190718-41ND
2019-10-142191015-061.74 ppb
2019-10-142191015-051.49 ppb
2020-01-232200124-42ND
2020-01-232200124-41ND
2020-04-202200421-23ND
2020-04-202200421-24ND
2020-07-222200723-06ND
2020-07-222200723-05ND
2020-10-202201021-42ND
2020-10-202201021-41ND
2021-01-202210121-06ND
2021-01-202210121-05ND
2021-04-222210423-05ND
2021-04-222210423-06ND
2021-07-212210722-17ND
2021-07-212210722-18ND
2021-10-192211020-35ND
2021-10-192211020-36ND
2022-01-182220119-17ND
2022-01-182220119-18ND
2022-04-192220420-48ND
2022-04-192220420-47ND
2022-09-082220909-38ND
2022-09-082220909-37ND
2022-10-182221019-06ND
2022-10-182221019-05ND
2023-01-1923A0360-02ND
2023-01-1923A0360-01ND
2023-04-1823D0249-02ND
2023-04-1823D0249-01ND
2023-07-1923G0152-02ND
2023-07-1923G0152-01ND
2023-10-1723J0402-011.20 ppb
2023-10-1723J0402-021.30 ppb