Know Your Environment. Protect Your Health.

Bromodichloromethane

Batts-lapile Water Association

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.

 

54

Samples

0

Samples exceeding legal limit (MCL)

50

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20183.93 ppb98ND - 7.60 ppb
20197.95 ppb990.720 ppb - 13.4 ppb
20201.71 ppb990.520 ppb - 3.10 ppb
20211.40 ppb97ND - 2.50 ppb
20224.31 ppb98ND - 15.1 ppb
20236.28 ppb990.826 ppb - 13.1 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
2018-02-2718060003301ND
2018-03-12180730021027.60 ppb
2018-03-12180730020025.50 ppb
2018-06-11181650045023.00 ppb
2018-06-11181650046022.70 ppb
2018-09-11182560039024.50 ppb
2018-09-11182560038025.70 ppb
2018-12-03183400041023.20 ppb
2018-12-03183400042023.20 ppb
2019-02-18190520047010.720 ppb
2019-03-12190730021026.90 ppb
2019-03-12190730022029.00 ppb
2019-06-171917100590212.6 ppb
2019-06-171917100600210.5 ppb
2019-09-091925400240213.3 ppb
2019-09-091925400250213.4 ppb
2019-12-03193390009022.50 ppb
2019-12-03193390010022.60 ppb
2020-02-11200430005010.520 ppb
2020-03-02200640013023.10 ppb
2020-03-02200640014022.20 ppb
2020-06-10201630112021.70 ppb
2020-06-10201630113021.50 ppb
2020-09-07202540010022.60 ppb
2020-09-07202540009021.30 ppb
2020-11-30203380027021.20 ppb
2020-11-30203380026021.30 ppb
2021-01-2721028014901ND
2021-03-1021070011202ND
2021-03-10210700111021.20 ppb
2021-06-08211610042021.60 ppb
2021-06-08211610043021.60 ppb
2021-09-08212520021022.40 ppb
2021-09-08212520022022.50 ppb
2021-12-07213420036021.70 ppb
2021-12-07213420035021.60 ppb
2022-02-25O195715-VOC-11.13 ppb
2022-03-02O195924-THM-11.55 ppb
2022-03-02O195925-THM-11.90 ppb
2022-06-07O198866-THM-13.16 ppb
2022-06-07O198867-THM-13.01 ppb
2022-09-07O201449-THM-115.1 ppb
2022-09-07O201448-THM-111.9 ppb
2022-12-06O204285-THM-1ND
2022-12-06O204284-THM-11.01 ppb
2023-01-24O205618-VOC-10.826 ppb
2023-03-07O206927-THM-12.25 ppb
2023-03-07O206928-THM-19.43 ppb
2023-06-14O210002-THM-12.38 ppb
2023-06-14O210001-THM-12.49 ppb
2023-09-06O211829-THM-16.25 ppb
2023-09-06O211828-THM-16.89 ppb
2023-12-05O214317-THM-113.1 ppb
2023-12-05O214316-THM-112.9 ppb