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EWG's Tap Water Database — 2021 UPDATE

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Bromoform

City of Mount Pleasant

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

 

108

Samples

0

Samples exceeding legal limit (MCL)

39

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20144.01 ppb17171.70 ppb - 32.1 ppb
20150.751 ppb179ND - 2.10 ppb
20160.0895 ppb201ND - 1.79 ppb
2017ND170ND
20180.986 ppb1710ND - 2.25 ppb
20190.113 ppb202ND - 1.14 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
2014-03-27Q14101130011.80 ppb
2014-03-27Q14101130021.80 ppb
2014-03-27Q14101130031.80 ppb
2014-03-27Q14101130041.70 ppb
2014-06-18Q14221440022.70 ppb
2014-06-18Q142214400332.1 ppb
2014-06-18Q14221440042.30 ppb
2014-06-18Q14221440052.40 ppb
2014-09-04Q14416210051.86 ppb
2014-09-04Q14416210012.50 ppb
2014-09-04Q14416210022.30 ppb
2014-09-04Q14416210032.30 ppb
2014-09-04Q14416210042.60 ppb
2014-11-21Q14571370042.00 ppb
2014-11-21Q14571370013.00 ppb
2014-11-21Q14571370022.10 ppb
2014-11-21Q14571370032.90 ppb
2015-02-26Q15075620051.60 ppb
2015-02-26Q1507562006ND
2015-02-26Q15075620072.10 ppb
2015-02-26Q15075620081.20 ppb
2015-06-01Q1520243001ND
2015-06-01Q1520243002ND
2015-06-01Q1520243003ND
2015-06-01Q1520243004ND
2015-09-01Q1534001006ND
2015-09-01Q15340010011.26 ppb
2015-09-01Q15340010021.48 ppb
2015-09-01Q15340010031.14 ppb
2015-09-01Q15340010041.21 ppb
2015-12-01Q15475120041.51 ppb
2015-12-01Q1547512001ND
2015-12-01Q15475120021.27 ppb
2015-12-01Q1547512003ND
2016-03-09Q1610035007ND
2016-03-09Q1610035008ND
2016-03-09Q1610035009ND
2016-03-09Q1610035010ND
2016-03-09Q16100350141.79 ppb
2016-05-31Q1621674001ND
2016-05-31Q1621674002ND
2016-05-31Q1621674003ND
2016-05-31Q1621674004ND
2016-05-31Q1621674005ND
2016-09-08Q1636517001ND
2016-09-08Q1636517002ND
2016-09-08Q1636517003ND
2016-09-08Q1636517004ND
2016-09-08Q1636517006ND
2016-11-21Q1650776003ND
2016-11-21Q1650776001ND
2016-11-21Q1650776004ND
2016-11-21Q1650776002ND
2016-11-21Q1650776006ND
2017-02-16Q1706930009ND
2017-02-16Q1706930005ND
2017-02-16Q1706930006ND
2017-02-16Q1706930007ND
2017-02-16Q1706930008ND
2017-04-12Q1714979001ND
2017-04-12Q1714979002ND
2017-04-12Q1714979003ND
2017-04-12Q1714979004ND
2017-07-13Q1729005003ND
2017-07-13Q1729005001ND
2017-07-13Q1729005004ND
2017-07-13Q1729005002ND
2017-10-30Q1755424003ND
2017-10-30Q1755424001ND
2017-10-30Q1755424004ND
2017-10-30Q1755424002ND
2018-02-20Q1807015002ND
2018-02-20Q1807015007ND
2018-02-20Q1807015008ND
2018-02-20Q1807015009ND
2018-02-20Q1807015010ND
2018-05-21Q18204180031.59 ppb
2018-05-21Q18204180011.21 ppb
2018-05-21Q18204180041.55 ppb
2018-05-21Q18204180021.21 ppb
2018-08-01Q18304410032.20 ppb
2018-08-01Q18304410012.25 ppb
2018-08-01Q18304410042.02 ppb
2018-08-01Q18304410022.24 ppb
2018-11-08Q18449110031.18 ppb
2018-11-08Q1844911001ND
2018-11-08Q18449110041.31 ppb
2018-11-08Q1844911002ND
2019-03-11Q1910044012ND
2019-03-11Q19100440031.14 ppb
2019-03-11Q1910044005ND
2019-03-11Q19100440041.12 ppb
2019-03-11Q1910044006ND
2019-05-30Q1930166002ND
2019-05-30Q1930166003ND
2019-05-30Q1930166004ND
2019-05-30Q1930166005ND
2019-05-30Q1930166008ND
2019-09-19Q1966999002ND
2019-09-19Q1966999003ND
2019-09-19Q1966999004ND
2019-09-19Q1966999005ND
2019-09-19Q1966999007ND
2019-11-25Q1978057004ND
2019-11-25Q1978057005ND
2019-11-25Q1978057006ND
2019-11-25Q1978057007ND
2019-11-25Q1978057008ND