Bromochloromethane

San Jose Water Company

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.

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Samples

Samples exceeding legal limit (MCL)

Samples exceeding
health guidelines

Testing results - average by year

Year	Average result	Samples taken	Detections	Range of results
2013	0.00524 ppb	21	1	ND - 0.110 ppb
2014	N/A	0	0	N/A
2015	ND	1	0	ND
2016	ND	2	0	ND
2017	N/A	0	0	N/A
2018	N/A	0	0	N/A
2019	N/A	0	0	N/A

ppb = parts per billion

All test results

Date	Lab ID	Result
2013-08-05	2872053	ND
2013-08-05	2872002	ND
2013-08-05	2872079	0.110 ppb
2013-08-05	2872019	ND
2013-08-05	2871986	ND
2013-08-12	2877914	ND
2013-08-19	2882261	ND
2013-08-19	2882214	ND
2013-08-19	2882285	ND
2013-08-19	2883572	ND
2013-08-19	2883561	ND
2013-08-26	2886361	ND
2013-08-26	2886350	ND
2013-08-26	2887322	ND
2013-08-26	2887288	ND
2013-08-26	2886329	ND
2013-08-27	2886940	ND
2013-11-06	2927655	ND
2013-11-06	2927631	ND
2013-11-06	2927609	ND
2013-11-06	2927620	ND
2015-02-11	3189329	ND
2016-03-04	1610-005-1315	ND
2016-04-01	1610-005-1140	ND