Know Your Environment. Protect Your Health.

Dibromochloromethane

Longview, Town of

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.

 

44

Samples

0

Samples exceeding legal limit (MCL)

11

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.125 ppb81ND - 1.000 ppb
20190.575 ppb42ND - 1.30 ppb
20200.288 ppb82ND - 1.20 ppb
20210.288 ppb82ND - 1.20 ppb
20220.263 ppb82ND - 1.10 ppb
20230.250 ppb82ND - 1.000 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
2018-02-1346785-02ND
2018-02-1346785-01ND
2018-05-0850492-02ND
2018-05-0850492-01ND
2018-08-0754629-01ND
2018-08-0754630-011.000 ppb
2018-11-0658931-01ND
2018-11-0658931-02ND
2019-05-0766523-01ND
2019-05-0766523-02ND
2019-08-0670516-011.30 ppb
2019-08-0670516-021.000 ppb
2020-02-0478240-01ND
2020-02-0478240-02ND
2020-05-0581880-01ND
2020-05-0581880-02ND
2020-08-0485791-011.10 ppb
2020-08-0485791-021.20 ppb
2020-11-0492504584001_37706ND
2020-11-0492504584002_37706ND
2021-02-0292520550001_37706ND
2021-02-0292520550002_37706ND
2021-05-0492537412001_37706ND
2021-05-0492537412002_37706ND
2021-08-0392554103001_377061.20 ppb
2021-08-0392554103002_377061.10 ppb
2021-11-0392571009001_37706ND
2021-11-0392571009002_37706ND
2022-02-0292586524001_37706ND
2022-02-0292586524002_37706ND
2022-05-0592603528001_37706ND
2022-05-0592603528002_37706ND
2022-08-0392619056002_377061.000 ppb
2022-08-0392619056001_377061.10 ppb
2022-11-0192634492001_37706ND
2022-11-0192634492002_37706ND
2023-02-07752-2916-1ND
2023-02-07752-2916-2ND
2023-05-021316-23ND
2023-05-021317-23ND
2023-08-082542-231.000 ppb
2023-08-082543-231.000 ppb
2023-11-07752-13582-1ND
2023-11-07752-13582-2ND