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EWG's Tap Water Database — 2021 UPDATE

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Bromoform

City of Hutto

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)

93

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
20143.71 ppb17171.20 ppb - 7.40 ppb
20152.16 ppb1716ND - 3.60 ppb
20160.800 ppb1710ND - 2.00 ppb
20172.77 ppb17171.10 ppb - 5.80 ppb
20182.36 ppb17171.10 ppb - 4.20 ppb
20192.34 ppb1716ND - 4.70 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
2014-02-21AC440942.90 ppb
2014-02-21AC440963.20 ppb
2014-02-21AC440973.40 ppb
2014-02-21AC440954.30 ppb
2014-05-09AC536743.10 ppb
2014-05-09AC536712.90 ppb
2014-05-09AC536692.50 ppb
2014-05-09AC536753.80 ppb
2014-05-09AC536801.20 ppb
2014-08-20AC647281.60 ppb
2014-08-20AC647372.60 ppb
2014-08-20AC647253.70 ppb
2014-08-20AC647272.90 ppb
2014-11-13AC720567.40 ppb
2014-11-13AC720685.30 ppb
2014-11-13AC720655.60 ppb
2014-11-13AC720596.60 ppb
2015-01-29AC784812.40 ppb
2015-01-29AC784153.60 ppb
2015-01-29AC784363.10 ppb
2015-01-29AC784313.10 ppb
2015-01-29AC784323.20 ppb
2015-06-08AC949022.30 ppb
2015-06-08AC948972.30 ppb
2015-06-08AC949071.70 ppb
2015-06-08AC949063.30 ppb
2015-09-17AD075531.000 ppb
2015-09-17AD075581.20 ppb
2015-09-17AD07554ND
2015-09-17AD075572.10 ppb
2015-11-02AD121721.60 ppb
2015-11-02AD121731.40 ppb
2015-11-02AD121761.40 ppb
2015-11-02AD121663.10 ppb
2016-02-25AD257571.40 ppb
2016-02-25AD256721.20 ppb
2016-02-25AD256841.20 ppb
2016-02-25AD257181.20 ppb
2016-02-25AD256751.90 ppb
2016-06-09AD39953ND
2016-06-09AD39955ND
2016-06-09AD39957ND
2016-06-09AD39958ND
2016-09-22AD50680ND
2016-09-22AD50673ND
2016-09-22AD506741.10 ppb
2016-09-22AD506782.00 ppb
2016-12-05AD603161.10 ppb
2016-12-05AD603131.10 ppb
2016-12-05AD60302ND
2016-12-05AD603151.40 ppb
2017-03-09AD743441.30 ppb
2017-03-09AD743451.20 ppb
2017-03-09AD743411.10 ppb
2017-03-09AD743403.00 ppb
2017-05-12AD840353.60 ppb
2017-05-12AD840325.60 ppb
2017-05-12AD840345.80 ppb
2017-05-12AD840333.90 ppb
2017-07-31AD913312.00 ppb
2017-07-31AD913341.80 ppb
2017-07-31AD913354.20 ppb
2017-07-31AD913384.00 ppb
2017-10-03AD990972.50 ppb
2017-10-03AD990361.60 ppb
2017-10-03AD990321.50 ppb
2017-10-03AD990351.50 ppb
2017-10-03AD990432.50 ppb
2018-03-08AE175121.90 ppb
2018-03-08AE175111.30 ppb
2018-03-08AE175071.40 ppb
2018-03-08AE174942.90 ppb
2018-05-07AE253212.00 ppb
2018-05-07AE253221.40 ppb
2018-05-07AE253201.80 ppb
2018-05-07AE253183.70 ppb
2018-08-21AE379192.50 ppb
2018-08-21AE378491.10 ppb
2018-08-21AE378482.20 ppb
2018-08-21AE378512.50 ppb
2018-08-21AE378471.20 ppb
2018-10-15AE434263.70 ppb
2018-10-15AE434303.10 ppb
2018-10-15AE434253.30 ppb
2018-10-15AE434324.20 ppb
2019-03-08AE577162.20 ppb
2019-03-08AE577172.00 ppb
2019-03-08AE577182.30 ppb
2019-03-08AE577192.40 ppb
2019-05-30AE68650ND
2019-05-30AE686042.10 ppb
2019-05-30AE686031.90 ppb
2019-05-30AE686052.60 ppb
2019-05-30AE686022.90 ppb
2019-08-14AE785311.20 ppb
2019-08-14AE785371.20 ppb
2019-08-14AE785341.40 ppb
2019-08-14AE785302.30 ppb
2019-11-26AE905613.60 ppb
2019-11-26AE905602.90 ppb
2019-11-26AE905594.70 ppb
2019-11-26AE905584.00 ppb