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EWG's Tap Water Database — 2021 UPDATE

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Bromodichloromethane

Lackland Air Force Base

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.

MORE ABOUT THIS CONTAMINANT

 

119

Samples

0

Samples exceeding legal limit (MCL)

41

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
20140.606 ppb174ND - 6.80 ppb
20150.390 ppb205ND - 1.90 ppb
20160.367 ppb215ND - 2.30 ppb
20170.586 ppb217ND - 3.00 ppb
20181.69 ppb2011ND - 10.4 ppb
20190.820 ppb209ND - 4.60 ppb

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.06 ppb

The EWG Health Guideline of 0.06 ppb for bromodichloromethane was proposed in 2018 by the California Office of Environmental Health Hazard Assessment as a one-in-a-million lifetime risk of cancer. Values greater than one-in-a-million cancer risk level can result in increased cancer cases above one in a million people.

ppb = parts per billion

All test results

Date Lab ID Result
2014-02-14AC43063ND
2014-02-14AC43078ND
2014-02-14AC43066ND
2014-02-14AC43077ND
2014-04-09AC49947ND
2014-04-09AC50026ND
2014-04-09AC50030ND
2014-04-09AC50044ND
2014-04-09AC50025ND
2014-07-21AC603611.20 ppb
2014-07-21AC603876.80 ppb
2014-07-21AC603711.30 ppb
2014-07-21AC60368ND
2014-12-19AC75642ND
2014-12-19AC75640ND
2014-12-19AC756441.000 ppb
2014-12-19AC75643ND
2015-02-27AC82360ND
2015-02-27AC82358ND
2015-02-27AC82364ND
2015-02-27AC82352ND
2015-02-27AC82304ND
2015-02-27AC82295ND
2015-02-27AC823271.70 ppb
2015-02-27AC82302ND
2015-06-24AC97206ND
2015-06-24AC97214ND
2015-06-24AC972091.80 ppb
2015-06-24AC97205ND
2015-08-20AD04791ND
2015-08-20AD047791.30 ppb
2015-08-20AD047881.90 ppb
2015-08-20AD04780ND
2015-11-18AD13989ND
2015-11-18AD13988ND
2015-11-18AD139871.10 ppb
2015-11-18AD13986ND
2016-03-08AD27605ND
2016-03-08AD27601ND
2016-03-08AD27611ND
2016-03-08AD27603ND
2016-03-08AD27521ND
2016-03-08AD27526ND
2016-03-08AD275221.000 ppb
2016-03-08AD275231.30 ppb
2016-06-22AD41507ND
2016-06-22AD414851.50 ppb
2016-06-22AD414871.60 ppb
2016-06-22AD41495ND
2016-09-21AD50497ND
2016-09-21AD50493ND
2016-09-21AD504952.30 ppb
2016-09-21AD50494ND
2016-12-12AD61649ND
2016-12-12AD61648ND
2016-12-12AD61645ND
2016-12-12AD61642ND
2016-12-12AD61662ND
2017-03-02AD73166ND
2017-03-02AD73134ND
2017-03-02AD73142ND
2017-03-02AD731802.30 ppb
2017-03-02AD73084ND
2017-03-02AD73067ND
2017-03-02AD73079ND
2017-03-02AD73081ND
2017-04-11AD791711.20 ppb
2017-04-11AD79172ND
2017-04-11AD791731.30 ppb
2017-04-11AD79174ND
2017-08-10AD92739ND
2017-08-10AD927131.30 ppb
2017-08-10AD927123.00 ppb
2017-08-10AD92738ND
2017-12-08AE07431ND
2017-12-08AE07405ND
2017-12-08AE07406ND
2017-12-08AE074071.60 ppb
2017-12-08AE074081.60 ppb
2018-01-19AE09496ND
2018-01-19AE09494ND
2018-01-19AE094931.20 ppb
2018-01-19AE094951.20 ppb
2018-04-11AE22073ND
2018-04-11AE22071ND
2018-04-11AE22075ND
2018-04-11AE220911.20 ppb
2018-04-11AE220022.20 ppb
2018-04-11AE22000ND
2018-04-11AE220031.70 ppb
2018-04-11AE220011.000 ppb
2018-07-30AE348451.60 ppb
2018-07-30AE348495.70 ppb
2018-07-30AE348483.20 ppb
2018-07-30AE34851ND
2018-10-17AE43918ND
2018-10-17AE4391410.4 ppb
2018-10-17AE439154.40 ppb
2018-10-17AE43912ND
2019-01-25AE51666ND
2019-01-25AE51576ND
2019-01-25AE515754.60 ppb
2019-01-25AE515811.000 ppb
2019-01-25AE51578ND
2019-04-11AE62078ND
2019-04-11AE62076ND
2019-04-11AE62080ND
2019-04-11AE62024ND
2019-04-11AE620211.20 ppb
2019-04-11AE620251.10 ppb
2019-04-11AE62026ND
2019-08-06AE77218ND
2019-08-06AE772012.10 ppb
2019-08-06AE771991.80 ppb
2019-08-06AE77206ND
2019-10-23AE87375ND
2019-10-23AE873901.40 ppb
2019-10-23AE874092.20 ppb
2019-10-23AE873961.000 ppb