Know Your Environment. Protect Your Health.

Bromodichloromethane

Nash Forreston Water Supply Corporation

Bromodichloromethane, one of the total trihalomethanes (TTHMs), is formed when chlorine or other disinfectants are used to treat drinking water. Bromodichloromethane and other disinfection byproducts increase the risk of cancer and may cause problems during pregnancy. Click here to read more about disinfection byproducts.

 

42

Samples

0

Samples exceeding legal limit (MCL)

20

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20182.37 ppb64ND - 5.67 ppb
2019ND60ND
2020ND70ND
20212.36 ppb63ND - 7.59 ppb
20222.51 ppb73ND - 12.0 ppb
202312.1 ppb10101.81 ppb - 21.9 ppb

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 0.06 ppb

The EWG Health Guideline of 0.06 ppb for bromodichloromethane 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
2018-01-24Q1802743004ND
2018-01-24Q1802743001ND
2018-01-24Q18027430193.99 ppb
2018-04-25Q18168450022.42 ppb
2018-08-27Q18341750025.67 ppb
2018-11-26Q18476840022.13 ppb
2019-02-27Q1908359002ND
2019-05-09Q1923160001ND
2019-05-09Q1923160003ND
2019-05-09Q1923160008ND
2019-09-27Q1969839002ND
2019-11-19Q1977640002ND
2020-03-05Q2008357001ND
2020-03-05Q2008357010ND
2020-03-05Q2008357003ND
2020-06-03Q2022021002ND
2020-09-08Q2035414002ND
2020-10-13Q2039945002ND
2020-12-07Q2048611002ND
2021-02-25Q21049880011.41 ppb
2021-05-05Q2111584018ND
2021-05-05Q21115840135.13 ppb
2021-05-05Q21115840117.59 ppb
2021-08-24Q2123003002ND
2021-11-10Q2131605002ND
2022-01-18Q2201589003ND
2022-01-18Q2201589005ND
2022-01-18Q2201589010ND
2022-06-22Q2217441002ND
2022-08-04Q222236900212.0 ppb
2022-12-01Q22359230012.91 ppb
2022-12-01Q22359230022.66 ppb
2023-02-28Q23080150012.77 ppb
2023-02-28Q23080150104.49 ppb
2023-02-28Q23080150094.02 ppb
2023-02-28Q23080150031.81 ppb
2023-06-07Q232144400117.6 ppb
2023-06-07Q232144400219.8 ppb
2023-09-13Q233940500113.6 ppb
2023-09-13Q233940500214.0 ppb
2023-11-07Q234813700121.9 ppb
2023-11-07Q234813700221.2 ppb