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EWG's Tap Water Database — 2021 UPDATE

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Bromoform

City of Azle

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)

36

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
20140.771 ppb179ND - 2.30 ppb
20150.200 ppb173ND - 1.20 ppb
2016ND170ND
20170.956 ppb1710ND - 2.05 ppb
20180.508 ppb175ND - 1.97 ppb
20190.920 ppb179ND - 2.66 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
2014-02-18Q1404975002ND
2014-02-18Q1404975003ND
2014-02-18Q1404975004ND
2014-02-18Q1404975005ND
2014-04-15Q1412118001ND
2014-04-15Q1412118002ND
2014-04-15Q1412118003ND
2014-04-15Q14121180041.20 ppb
2014-07-14Q1427432006ND
2014-07-14Q14274320011.30 ppb
2014-07-14Q14274320022.30 ppb
2014-07-14Q14274320031.50 ppb
2014-07-14Q14274320041.90 ppb
2014-10-21Q14532280011.20 ppb
2014-10-21Q14532280021.30 ppb
2014-10-21Q14532280031.20 ppb
2014-10-21Q14532280041.20 ppb
2015-03-02Q1507707005ND
2015-03-02Q15077070061.10 ppb
2015-03-02Q15077070071.20 ppb
2015-03-02Q15077070081.10 ppb
2015-05-04Q1516122001ND
2015-05-04Q1516122002ND
2015-05-04Q1516122003ND
2015-05-04Q1516122004ND
2015-07-20Q1528153001ND
2015-07-20Q1528153003ND
2015-07-20Q1528153004ND
2015-07-20Q1528153005ND
2015-07-20Q1528153006ND
2015-10-12Q1539900001ND
2015-10-12Q1539900002ND
2015-10-12Q1539900003ND
2015-10-19Q1541211001ND
2016-01-20Q1602519004ND
2016-01-20Q1602519005ND
2016-01-20Q1602519006ND
2016-01-20Q1602519007ND
2016-04-19Q1615458002ND
2016-04-19Q1615458003ND
2016-04-19Q1615458004ND
2016-04-19Q1615458001ND
2016-08-02Q1631776002ND
2016-08-02Q1631776003ND
2016-08-02Q1631776004ND
2016-08-02Q1631776005ND
2016-08-02Q1631776006ND
2016-10-27Q1645993001ND
2016-10-27Q1645993002ND
2016-10-27Q1645993003ND
2016-10-27Q1645993004ND
2017-01-23Q1702942007ND
2017-01-23Q1702942003ND
2017-01-23Q1702942008ND
2017-01-23Q1702942004ND
2017-05-04Q1718453001ND
2017-05-04Q1718453003ND
2017-05-04Q17184530021.02 ppb
2017-05-04Q1718453004ND
2017-07-31Q17313350021.47 ppb
2017-07-31Q17313350031.61 ppb
2017-07-31Q17313350041.57 ppb
2017-07-31Q17313350051.63 ppb
2017-07-31Q17313350061.71 ppb
2017-10-26Q17550040031.40 ppb
2017-10-26Q17550040011.88 ppb
2017-10-26Q17550040042.05 ppb
2017-10-26Q17550040021.92 ppb
2018-01-18Q18021810061.87 ppb
2018-01-18Q18021810071.87 ppb
2018-01-18Q18021810081.88 ppb
2018-01-18Q18021810011.97 ppb
2018-04-11Q1814988001ND
2018-04-11Q1814988003ND
2018-04-11Q1814988002ND
2018-04-11Q1814988004ND
2018-07-30Q1829994004ND
2018-07-30Q1829994001ND
2018-07-30Q1829994005ND
2018-07-30Q1829994002ND
2018-07-30Q1829994006ND
2018-10-17Q1841620003ND
2018-10-17Q1841620001ND
2018-10-17Q18416200041.05 ppb
2018-10-17Q1841620002ND
2019-02-04Q19050120041.18 ppb
2019-02-04Q19050120051.24 ppb
2019-02-04Q19050120061.17 ppb
2019-02-04Q19050120071.16 ppb
2019-04-30Q1917102001ND
2019-04-30Q1917102003ND
2019-04-30Q1917102002ND
2019-04-30Q1917102004ND
2019-07-30Q1948893001ND
2019-07-30Q1948893003ND
2019-07-30Q1948893004ND
2019-07-30Q19488930051.02 ppb
2019-07-30Q1948893006ND
2019-11-18Q19771210012.43 ppb
2019-11-18Q19771210022.66 ppb
2019-11-18Q19771210032.35 ppb
2019-11-18Q19771210042.43 ppb