Know Your Environment. Protect Your Health.

Bromochloromethane

Blackland Water Supply Corporation

NOTE: Blackland Water Supply Corporation purchases water from City of Rockwall which is required to test for bromochloromethane. Sample information shown below was taken by City of Rockwall.

Bromochloromethane is a tap water disinfection byproduct; it is also used as an intermediate in chemical manufacturing and as a fire extinguishing agent. Disinfection byproducts in drinking water increase the risk of cancer.

 

4

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2015ND40ND
2016N/A00N/A
2017N/A00N/A
2018N/A00N/A
2019N/A00N/A
2020N/A00N/A
2021N/A00N/A
2022N/A00N/A
2023N/A00N/A

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 bromochloromethane was defined by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against cancer, harm to reproduction and child development, and change to fetal growth and development.

ppb = parts per billion

All test results

NOTE: Blackland Water Supply Corporation purchases water from City of Rockwall which is required to test for bromochloromethane. Sample information shown below was taken by City of Rockwall.

Date Lab ID Result
2013-06-13Q1302538001ND
2013-09-25Q1308241001ND
2013-12-16Q1317765001ND
2014-03-27Q1409938001ND