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EWG's Tap Water Database — 2021 UPDATE

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Dibromochloromethane

City of Leander

Dibromochloromethane, one of the total trihalomethanes (TTHMs), is formed when chlorine or other disinfectants are used to treat drinking water. Dibromochloromethane 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

 

102

Samples

0

Samples exceeding legal limit (MCL)

79

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20141.74 ppb1716ND - 2.60 ppb
20152.58 ppb178ND - 15.6 ppb
20168.78 ppb1715ND - 15.6 ppb
201711.1 ppb1716ND - 16.6 ppb
20187.94 ppb17171.20 ppb - 13.3 ppb
20193.04 ppb177ND - 13.9 ppb

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.1 ppb

The EWG Health Guideline of 0.1 ppb for dibromochloromethane 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
2014-02-18AC43440ND
2014-02-18AC434271.80 ppb
2014-02-18AC434251.60 ppb
2014-02-18AC434301.80 ppb
2014-02-18AC434361.80 ppb
2014-04-29AC521652.40 ppb
2014-04-29AC521702.50 ppb
2014-04-29AC521632.60 ppb
2014-04-29AC521612.40 ppb
2014-08-12AC632501.20 ppb
2014-08-12AC632272.10 ppb
2014-08-12AC632521.30 ppb
2014-08-12AC632491.20 ppb
2014-10-27AC705951.60 ppb
2014-10-27AC705762.20 ppb
2014-10-27AC705751.50 ppb
2014-10-27AC705961.50 ppb
2015-03-12AC84079ND
2015-03-12AC840431.60 ppb
2015-03-12AC840421.40 ppb
2015-03-12AC840411.70 ppb
2015-03-12AC840441.40 ppb
2015-06-02AC94256ND
2015-06-02AC94263ND
2015-06-02AC94258ND
2015-06-02AC94259ND
2015-08-31AD05028ND
2015-08-31AD05026ND
2015-08-31AD05027ND
2015-09-02AD05307ND
2015-11-03AD123764.80 ppb
2015-11-03AD1236112.3 ppb
2015-11-03AD1236315.6 ppb
2015-11-03AD123755.10 ppb
2016-02-29AD26067ND
2016-02-29AD260164.00 ppb
2016-02-29AD260148.90 ppb
2016-02-29AD2601311.0 ppb
2016-02-29AD2601513.2 ppb
2016-06-03AD392704.20 ppb
2016-06-03AD392719.00 ppb
2016-06-03AD3926911.4 ppb
2016-06-03AD3926810.9 ppb
2016-09-14AD49425ND
2016-09-14AD494227.80 ppb
2016-09-14AD4941410.4 ppb
2016-09-14AD494185.20 ppb
2016-11-01AD5581211.1 ppb
2016-11-01AD5580913.4 ppb
2016-11-01AD5581015.6 ppb
2016-11-01AD5581113.1 ppb
2017-03-01AD72811ND
2017-03-01AD727466.60 ppb
2017-03-01AD727479.00 ppb
2017-03-01AD7275111.1 ppb
2017-03-01AD7275010.4 ppb
2017-06-06AD8665110.2 ppb
2017-06-06AD8664611.8 ppb
2017-06-06AD8665013.3 ppb
2017-06-06AD8664911.4 ppb
2017-07-27AD9107812.9 ppb
2017-07-27AD9107516.0 ppb
2017-07-27AD9108016.6 ppb
2017-07-27AD910838.60 ppb
2017-10-12AE0054811.1 ppb
2017-10-12AE0054913.1 ppb
2017-10-12AE0055013.8 ppb
2017-10-12AE0054713.1 ppb
2018-02-22AE150591.70 ppb
2018-02-22AE150334.10 ppb
2018-02-22AE149987.40 ppb
2018-02-22AE1500811.4 ppb
2018-02-22AE1500910.9 ppb
2018-04-26AE241311.20 ppb
2018-04-26AE241328.20 ppb
2018-04-26AE2413012.0 ppb
2018-04-26AE2412811.1 ppb
2018-08-09AE363301.30 ppb
2018-08-09AE3633210.1 ppb
2018-08-09AE3632812.3 ppb
2018-08-09AE363256.60 ppb
2018-10-30AE448652.90 ppb
2018-10-30AE448619.90 ppb
2018-10-30AE4486613.3 ppb
2018-10-30AE4486410.6 ppb
2019-01-24AE51251ND
2019-01-24AE51181ND
2019-01-24AE51175ND
2019-01-24AE51182ND
2019-01-31AE52405ND
2019-04-02AE60833ND
2019-04-02AE60829ND
2019-04-02AE60863ND
2019-04-02AE60832ND
2019-07-25AE759252.30 ppb
2019-07-25AE75922ND
2019-07-25AE7592013.9 ppb
2019-07-25AE759291.10 ppb
2019-11-26AE905533.00 ppb
2019-11-26AE905577.90 ppb
2019-11-26AE9055411.8 ppb
2019-11-26AE9055511.7 ppb