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EWG's Tap Water Database — 2021 UPDATE

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Bromochloromethane

San Juan Water District

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.

 

5

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014N/A00N/A
2015ND40ND
2016ND10ND
2017N/A00N/A
2018N/A00N/A
2019N/A00N/A

ppb = parts per billion

All test results

Date Lab ID Result
2015-03-05201503060391AMND
2015-06-18201506190286AMND
2015-09-17201509180474AMND
2015-12-17201512180124AMND
2016-10-209590-001-1420ND