Know Your Environment. Protect Your Health.

Dibromochloromethane

Devries Road Community 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.

 

24

Samples

0

Samples exceeding legal limit (MCL)

16

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20181.83 ppb43ND - 3.30 ppb
20192.52 ppb551.40 ppb - 3.80 ppb
2020N/A00N/A
20210.160 ppb51ND - 0.800 ppb
20220.840 ppb52ND - 3.10 ppb
20232.54 ppb550.900 ppb - 4.10 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
2018-03-053.00 ppb
2018-05-291.000 ppb
2018-09-19ND
2018-11-193.30 ppb
2019-03-042.80 ppb
2019-06-281.40 ppb
2019-07-292.00 ppb
2019-10-293.80 ppb
2019-12-182.60 ppb
2021-02-2240853050.800 ppb
2021-06-144132523ND
2021-09-304188385ND
2021-11-294208608ND
2021-11-304208190ND
2022-03-214260782ND
2022-05-094286851ND
2022-09-2043492061.10 ppb
2022-10-284368441ND
2022-11-1843839663.10 ppb
2023-02-0144114121.20 ppb
2023-05-0944575700.900 ppb
2023-08-2945216364.10 ppb
2023-10-0445450412.70 ppb
2023-11-3045617833.80 ppb