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EWG's Tap Water Database — 2021 UPDATE

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Bromoform

City of Mansfield

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

 

198

Samples

0

Samples exceeding legal limit (MCL)

84

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20142.01 ppb3332ND - 2.60 ppb
20151.07 ppb3316ND - 3.30 ppb
2016ND330ND
20170.151 ppb334ND - 1.35 ppb
20181.18 ppb3329ND - 1.71 ppb
20190.0976 ppb333ND - 1.10 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
2014-03-17Q14084270011.50 ppb
2014-03-17Q14084270021.50 ppb
2014-03-17Q14084270031.50 ppb
2014-03-17Q14084270041.50 ppb
2014-03-17Q14084270051.50 ppb
2014-03-17Q14084270061.50 ppb
2014-03-17Q14084270071.40 ppb
2014-03-17Q14084270081.40 ppb
2014-05-22Q14177090012.20 ppb
2014-05-22Q14177090022.10 ppb
2014-05-22Q14177090032.20 ppb
2014-05-22Q14177090042.40 ppb
2014-05-22Q14177090052.40 ppb
2014-05-22Q14177090062.20 ppb
2014-05-22Q14177090072.30 ppb
2014-05-22Q14177090082.50 ppb
2014-08-04Q1433662001ND
2014-08-04Q14336620082.00 ppb
2014-08-04Q14336620092.00 ppb
2014-08-04Q14336620102.10 ppb
2014-08-04Q14336620031.90 ppb
2014-08-04Q14336620042.10 ppb
2014-08-04Q14336620052.00 ppb
2014-08-04Q14336620062.40 ppb
2014-08-04Q14336620072.30 ppb
2014-10-16Q14528970042.30 ppb
2014-10-16Q14528970012.30 ppb
2014-10-16Q14528970022.40 ppb
2014-10-16Q14528970032.50 ppb
2014-10-16Q14528970052.30 ppb
2014-10-16Q14528970062.60 ppb
2014-10-16Q14528970072.50 ppb
2014-10-16Q14528970082.40 ppb
2015-01-15Q15010130013.10 ppb
2015-01-15Q15010130023.20 ppb
2015-01-15Q15010130033.30 ppb
2015-01-15Q15010130043.20 ppb
2015-01-15Q15010130053.20 ppb
2015-01-15Q15010130063.30 ppb
2015-01-15Q15010130073.10 ppb
2015-01-15Q15010130083.30 ppb
2015-04-07Q15126930011.09 ppb
2015-04-07Q15126930021.03 ppb
2015-04-07Q15126930031.10 ppb
2015-04-07Q15126930041.34 ppb
2015-04-07Q15126930051.08 ppb
2015-04-07Q15126930061.15 ppb
2015-04-07Q15126930071.33 ppb
2015-04-07Q15126930081.54 ppb
2015-08-06Q1530908010ND
2015-08-06Q1530908001ND
2015-08-06Q1530908002ND
2015-08-06Q1530908003ND
2015-08-06Q1530908004ND
2015-08-06Q1530908005ND
2015-08-06Q1530908006ND
2015-08-06Q1530908007ND
2015-08-06Q1530908008ND
2015-10-14Q1540357001ND
2015-10-14Q1540357002ND
2015-10-14Q1540357003ND
2015-10-14Q1540357004ND
2015-10-14Q1540357005ND
2015-10-14Q1540357006ND
2015-10-14Q1540357007ND
2015-10-14Q1540357008ND
2016-01-13Q1601403009ND
2016-01-13Q1601403010ND
2016-01-13Q1601403011ND
2016-01-13Q1601403012ND
2016-01-13Q1601403013ND
2016-01-13Q1601403014ND
2016-01-13Q1601403015ND
2016-01-13Q1601403016ND
2016-04-11Q1614220001ND
2016-04-11Q1614220002ND
2016-04-11Q1614220003ND
2016-04-11Q1614220004ND
2016-04-11Q1614220005ND
2016-04-11Q1614220006ND
2016-04-11Q1614220007ND
2016-04-11Q1614220008ND
2016-07-12Q1628074001ND
2016-07-12Q1628074003ND
2016-07-12Q1628074004ND
2016-07-12Q1628074005ND
2016-07-12Q1628074006ND
2016-07-12Q1628074007ND
2016-07-12Q1628074008ND
2016-07-12Q1628074009ND
2016-07-12Q1628074010ND
2016-10-11Q1643280001ND
2016-10-11Q1643280002ND
2016-10-11Q1643280003ND
2016-10-11Q1643280004ND
2016-10-11Q1643280005ND
2016-10-11Q1643280006ND
2016-10-11Q1643280007ND
2016-10-11Q1643280008ND
2017-01-25Q1703554005ND
2017-01-25Q1703554006ND
2017-01-25Q1703554007ND
2017-01-25Q1703554008ND
2017-01-25Q1703554009ND
2017-01-25Q1703554010ND
2017-01-25Q1703554011ND
2017-01-25Q1703554012ND
2017-04-19Q1716216001ND
2017-04-19Q1716216002ND
2017-04-19Q1716216003ND
2017-04-19Q1716216004ND
2017-04-19Q1716216005ND
2017-04-19Q1716216006ND
2017-04-19Q1716216007ND
2017-04-19Q1716216008ND
2017-07-05Q1727265007ND
2017-07-05Q1727265001ND
2017-07-05Q1727265008ND
2017-07-05Q1727265002ND
2017-07-05Q1727265009ND
2017-07-05Q1727265003ND
2017-07-05Q1727265005ND
2017-07-05Q1727265010ND
2017-07-05Q1727265004ND
2017-10-17Q17534800011.23 ppb
2017-10-17Q1753480005ND
2017-10-17Q1753480008ND
2017-10-17Q17534800021.21 ppb
2017-10-17Q17534800061.35 ppb
2017-10-17Q1753480003ND
2017-10-17Q17534800071.18 ppb
2017-10-17Q1753480004ND
2018-02-07Q18054970081.36 ppb
2018-02-07Q18054970091.34 ppb
2018-02-07Q18054970101.31 ppb
2018-02-07Q18054970111.29 ppb
2018-02-07Q18054970121.52 ppb
2018-02-07Q18054970011.31 ppb
2018-02-07Q18054970021.16 ppb
2018-02-07Q18054970031.20 ppb
2018-04-02Q1813206003ND
2018-04-02Q1813206007ND
2018-04-02Q1813206004ND
2018-04-02Q18132060081.14 ppb
2018-04-02Q18132060051.12 ppb
2018-04-02Q1813206001ND
2018-04-02Q18132060061.19 ppb
2018-04-02Q18132060021.26 ppb
2018-07-12Q18276230071.000 ppb
2018-07-12Q18276230011.45 ppb
2018-07-12Q18276230091.43 ppb
2018-07-12Q18276230021.54 ppb
2018-07-12Q18276230101.59 ppb
2018-07-12Q18276230031.71 ppb
2018-07-12Q18276230041.53 ppb
2018-07-12Q18276230061.57 ppb
2018-07-12Q18276230051.46 ppb
2018-10-15Q18410630011.45 ppb
2018-10-15Q18410630021.28 ppb
2018-10-15Q18410630031.23 ppb
2018-10-15Q18410630041.27 ppb
2018-10-15Q18410630051.28 ppb
2018-10-15Q18410630061.28 ppb
2018-10-15Q18410630071.30 ppb
2018-10-15Q18410630081.29 ppb
2019-01-28Q1903817009ND
2019-01-28Q1903817010ND
2019-01-28Q1903817011ND
2019-01-28Q1903817012ND
2019-01-28Q1903817013ND
2019-01-28Q1903817014ND
2019-01-28Q1903817015ND
2019-01-28Q1903817016ND
2019-05-07Q19208480011.10 ppb
2019-05-07Q1920848002ND
2019-05-07Q19208480031.07 ppb
2019-05-07Q1920848004ND
2019-05-07Q19208480051.05 ppb
2019-05-07Q1920848006ND
2019-05-07Q1920848007ND
2019-05-07Q1920848008ND
2019-07-02Q1941930004ND
2019-07-02Q1941930001ND
2019-07-02Q1941930002ND
2019-07-02Q1941930003ND
2019-07-02Q1941930006ND
2019-07-02Q1941930007ND
2019-07-02Q1941930008ND
2019-07-02Q1941930009ND
2019-07-02Q1941930010ND
2019-10-17Q1972978001ND
2019-10-17Q1972978002ND
2019-10-17Q1972978003ND
2019-10-17Q1972978004ND
2019-10-17Q1972978005ND
2019-10-17Q1972978006ND
2019-10-17Q1972978007ND
2019-10-17Q1972978008ND