Know Your Environment. Protect Your Health.

Dibromochloromethane

Nashville Rural Water Association

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.

 

52

Samples

0

Samples exceeding legal limit (MCL)

38

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20181.10 ppb86ND - 1.80 ppb
20191.62 ppb10101.10 ppb - 2.70 ppb
20201.07 ppb107ND - 2.20 ppb
20210.650 ppb84ND - 1.50 ppb
20221.13 ppb86ND - 2.40 ppb
20230.745 ppb85ND - 1.35 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
2018-02-13180460014021.40 ppb
2018-02-13180460008021.80 ppb
2018-05-15181370043021.50 ppb
2018-05-15181370048021.80 ppb
2018-08-14182280032021.10 ppb
2018-08-1418228003602ND
2018-11-1318319007102ND
2018-11-13183190068021.20 ppb
2019-02-12190450074021.20 ppb
2019-02-12190450077021.20 ppb
2019-05-07191290046021.20 ppb
2019-05-07191290047021.10 ppb
2019-08-13192270026022.40 ppb
2019-08-13192270029022.70 ppb
2019-11-04193110015021.40 ppb
2019-11-04193110012021.30 ppb
2019-12-10193450054022.00 ppb
2019-12-10193450053021.70 ppb
2020-02-03200370006021.30 ppb
2020-02-03200370003021.20 ppb
2020-05-0520128006802ND
2020-05-0520128006502ND
2020-08-11202260047021.30 ppb
2020-08-12202260044021.20 ppb
2020-10-0120275003402ND
2020-11-04203100046021.70 ppb
2020-11-04203100049022.20 ppb
2020-12-01203380089021.80 ppb
2021-02-24210560037011.50 ppb
2021-02-24210560034011.50 ppb
2021-05-1121133007202ND
2021-05-1121133007602ND
2021-08-04212170030021.10 ppb
2021-08-0421217002702ND
2021-10-2621300002702ND
2021-10-26213000025021.10 ppb
2022-01-31220330111022.40 ppb
2022-01-31220330110022.10 ppb
2022-05-03O197626-THM-1ND
2022-05-03O197625-THM-11.08 ppb
2022-08-03O200312-THM-11.05 ppb
2022-08-03O200313-THM-1ND
2022-10-25O203136-THM-11.13 ppb
2022-10-25O203135-THM-11.25 ppb
2023-02-08O206085-THM-1ND
2023-02-08O206086-THM-11.15 ppb
2023-05-01O208746-THM-1ND
2023-05-01O208747-THM-11.16 ppb
2023-07-26O210970-THM-11.17 ppb
2023-07-26O210971-THM-11.35 ppb
2023-10-31O213550-THM-1ND
2023-10-31O213551-THM-11.13 ppb