Know Your Environment. Protect Your Health.

Bromodichloromethane

La Playa Subdivision Water System

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.

 

30

Samples

0

Samples exceeding legal limit (MCL)

25

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
201855.6 ppb555.89 ppb - 107.0 ppb
201930.5 ppb557.55 ppb - 59.1 ppb
202023.4 ppb54ND - 42.6 ppb
202115.1 ppb54ND - 60.7 ppb
202228.3 ppb52ND - 99.0 ppb
202381.0 ppb556.66 ppb - 165.0 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
2018-03-21Q181137400439.1 ppb
2018-03-21Q181137400138.8 ppb
2018-06-19Q182449200187.4 ppb
2018-09-19Q18375940015.89 ppb
2018-12-10Q1850397001107.0 ppb
2019-03-06Q190956100259.1 ppb
2019-03-06Q190956100552.8 ppb
2019-06-26Q194019300122.5 ppb
2019-09-23Q19681210017.55 ppb
2019-12-10Q197954700110.6 ppb
2020-03-24Q201241500135.8 ppb
2020-03-24Q201241500542.6 ppb
2020-06-29Q20259470024.87 ppb
2020-09-15Q203663600133.6 ppb
2020-12-14Q2049444002ND
2021-03-25Q21077800026.86 ppb
2021-06-17Q21159070016.02 ppb
2021-06-17Q21159070041.84 ppb
2021-09-01Q2123833001ND
2021-12-01Q213344900160.7 ppb
2022-03-07Q220762100899.0 ppb
2022-03-07Q220762100942.3 ppb
2022-05-09Q2213780001ND
2022-08-16Q2224015002ND
2022-11-21Q2234991001ND
2023-01-31Q230432800171.9 ppb
2023-04-24Q23152370016.66 ppb
2023-08-16Q2334346003165.0 ppb
2023-08-16Q2334346004120.0 ppb
2023-11-29Q235087600141.5 ppb