Menu

EWG's Tap Water Database — 2021 UPDATE

Donate

Bromochloromethane

City of Pasadena

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.

MORE ABOUT THIS CONTAMINANT

 

60

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.0316 ppb192ND - 0.380 ppb
2015ND50ND
2016ND80ND
2017ND120ND
2018ND90ND
2019ND70ND

ppb = parts per billion

All test results

Date Lab ID Result
2014-01-211068590007ND
2014-01-211068590004ND
2014-01-211068590010ND
2014-01-221068803004ND
2014-01-221068803007ND
2014-01-2310688030100.220 ppb
2014-03-06AC45988ND
2014-03-06AC46000ND
2014-04-162002669007ND
2014-04-162002669010ND
2014-04-24AC51722ND
2014-04-24AC51724ND
2014-04-24AC51728ND
2014-09-022026794007ND
2014-09-0320271380020.380 ppb
2014-09-222030537008ND
2014-09-222030537005ND
2014-09-292031681005ND
2014-09-292031681008ND
2015-01-14AC76273ND
2015-01-14AC76265ND
2015-01-14AC76229ND
2015-01-14AC76267ND
2015-01-14AC76203ND
2016-01-11AD17364ND
2016-01-11AD17360ND
2016-01-11AD17352ND
2016-04-06AD32085ND
2016-04-06AD32083ND
2016-06-17AD41169ND
2016-07-06AD43177ND
2016-10-06AD52692ND
2017-01-10AD63998ND
2017-03-16AD75448ND
2017-03-16AD75466ND
2017-03-16AD75462ND
2017-03-16AD75468ND
2017-03-16AD75454ND
2017-03-16AD75450ND
2017-03-16AD75452ND
2017-04-04AD78285ND
2017-07-11AD88935ND
2017-09-18AD96543ND
2017-10-31AE02981ND
2018-02-06AE12532ND
2018-02-06AE12534ND
2018-05-02AE24851ND
2018-05-02AE24847ND
2018-05-02AE24855ND
2018-05-02AE24845ND
2018-06-26AE31497ND
2018-06-26AE31481ND
2018-11-14AE46107ND
2019-01-30AE52244ND
2019-01-30AE52210ND
2019-03-06AE57409ND
2019-03-06AE57411ND
2019-03-06AE57407ND
2019-08-06AE77247ND
2019-08-06AE77265ND