Know Your Environment. Protect Your Health.

Bromodichloromethane

Southwood 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.

 

66

Samples

0

Samples exceeding legal limit (MCL)

25

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.302 ppb124ND - 1.10 ppb
20190.242 ppb155ND - 0.850 ppb
2020N/A00N/A
20210.396 ppb114ND - 1.30 ppb
20220.300 ppb175ND - 1.40 ppb
20230.658 ppb117ND - 1.40 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
2018-02-14ND
2018-02-141.10 ppb
2018-03-14ND
2018-03-14ND
2018-05-04ND
2018-05-150.940 ppb
2018-05-15ND
2018-07-19ND
2018-08-210.910 ppb
2018-08-21ND
2018-11-15ND
2018-11-150.670 ppb
2019-02-08ND
2019-02-08ND
2019-05-210.520 ppb
2019-05-210.580 ppb
2019-06-26ND
2019-07-12ND
2019-07-12ND
2019-09-05ND
2019-09-050.840 ppb
2019-09-05ND
2019-10-15ND
2019-11-130.850 ppb
2019-11-130.840 ppb
2019-12-05ND
2019-12-05ND
2021-02-174085721ND
2021-02-174081091ND
2021-03-124166774ND
2021-03-124164633ND
2021-03-174205286ND
2021-05-2441294351.30 ppb
2021-05-244129436ND
2021-08-114166472ND
2021-08-1141664731.20 ppb
2021-11-1042085251.10 ppb
2021-11-1042085260.760 ppb
2022-01-264240240ND
2022-01-264240242ND
2022-01-264240241ND
2022-01-274240239ND
2022-02-044240244ND
2022-02-044240245ND
2022-02-044258007ND
2022-02-0442580090.860 ppb
2022-08-1143593930.890 ppb
2022-08-1543594131.40 ppb
2022-10-1144650870.650 ppb
2022-10-174370660ND
2022-10-314465043ND
2022-10-314464989ND
2022-11-084374813ND
2022-11-0843748121.30 ppb
2022-11-144382866ND
2023-02-144416403ND
2023-02-1444164021.000 ppb
2023-03-144437411ND
2023-03-144437441ND
2023-07-1744882181.40 ppb
2023-07-1744882151.10 ppb
2023-08-0745056010.860 ppb
2023-08-1445055621.20 ppb
2023-09-264532910ND
2023-11-1345690510.680 ppb
2023-11-2745690401.000 ppb