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EWG's Tap Water Database — 2021 UPDATE

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Bromoform

City of Leander

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

50

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.0588 ppb171ND - 1.000 ppb
20150.241 ppb172ND - 2.30 ppb
20161.31 ppb1712ND - 2.90 ppb
20173.51 ppb1716ND - 5.70 ppb
20182.88 ppb1714ND - 5.30 ppb
20190.888 ppb175ND - 4.30 ppb

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.5 ppb

The EWG Health Guideline of 0.5 ppb for bromoform 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
2014-02-18AC43427ND
2014-02-18AC43425ND
2014-02-18AC43430ND
2014-02-18AC43436ND
2014-04-29AC52165ND
2014-04-29AC52170ND
2014-04-29AC52163ND
2014-04-29AC52161ND
2014-08-12AC63250ND
2014-08-12AC63227ND
2014-08-12AC63252ND
2014-08-12AC63249ND
2014-10-27AC70595ND
2014-10-27AC70576ND
2014-10-27AC705751.000 ppb
2014-10-27AC70596ND
2015-03-12AC84079ND
2015-03-12AC84043ND
2015-03-12AC84042ND
2015-03-12AC84041ND
2015-03-12AC84044ND
2015-06-02AC94256ND
2015-06-02AC94263ND
2015-06-02AC94258ND
2015-06-02AC94259ND
2015-08-31AD05028ND
2015-08-31AD05026ND
2015-08-31AD05027ND
2015-09-02AD05307ND
2015-11-03AD12376ND
2015-11-03AD123611.80 ppb
2015-11-03AD123632.30 ppb
2015-11-03AD12375ND
2016-02-29AD26067ND
2016-02-29AD26016ND
2016-02-29AD260141.10 ppb
2016-02-29AD260131.40 ppb
2016-02-29AD260151.60 ppb
2016-06-03AD39270ND
2016-06-03AD392711.50 ppb
2016-06-03AD392691.80 ppb
2016-06-03AD392682.00 ppb
2016-09-14AD49425ND
2016-09-14AD494221.20 ppb
2016-09-14AD494141.30 ppb
2016-09-14AD49418ND
2016-11-01AD558122.00 ppb
2016-11-01AD558092.90 ppb
2016-11-01AD558102.90 ppb
2016-11-01AD558112.60 ppb
2017-03-01AD72811ND
2017-03-01AD727462.10 ppb
2017-03-01AD727472.30 ppb
2017-03-01AD727512.90 ppb
2017-03-01AD727502.80 ppb
2017-06-06AD866512.90 ppb
2017-06-06AD866463.40 ppb
2017-06-06AD866503.50 ppb
2017-06-06AD866493.40 ppb
2017-07-27AD910784.50 ppb
2017-07-27AD910755.50 ppb
2017-07-27AD910805.70 ppb
2017-07-27AD910833.60 ppb
2017-10-12AE005483.70 ppb
2017-10-12AE005494.40 ppb
2017-10-12AE005504.40 ppb
2017-10-12AE005474.60 ppb
2018-02-22AE15059ND
2018-02-22AE150331.40 ppb
2018-02-22AE149982.50 ppb
2018-02-22AE150083.60 ppb
2018-02-22AE150093.80 ppb
2018-04-26AE24131ND
2018-04-26AE241322.90 ppb
2018-04-26AE241304.40 ppb
2018-04-26AE241283.90 ppb
2018-08-09AE36330ND
2018-08-09AE363324.40 ppb
2018-08-09AE363285.30 ppb
2018-08-09AE363253.30 ppb
2018-10-30AE448651.20 ppb
2018-10-30AE448614.00 ppb
2018-10-30AE448664.50 ppb
2018-10-30AE448643.80 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
2019-07-25AE75925ND
2019-07-25AE75922ND
2019-07-25AE759204.00 ppb
2019-07-25AE75929ND
2019-11-26AE905531.000 ppb
2019-11-26AE905571.90 ppb
2019-11-26AE905544.30 ppb
2019-11-26AE905553.90 ppb