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EWG's Tap Water Database — 2021 UPDATE

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Bromoform

Cypress Springs SUD N Plant 1 and NE Plant

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

 

60

Samples

0

Samples exceeding legal limit (MCL)

1

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20141.89 ppb101ND - 18.9 ppb
2015ND100ND
2016ND100ND
2017ND100ND
2018ND100ND
2019ND100ND

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
2014-03-27Q1410111002ND
2014-03-27Q1410111001ND
2014-06-18Q142214200518.9 ppb
2014-06-18Q1422142004ND
2014-09-17Q1445247004ND
2014-09-17Q1445247006ND
2014-09-17Q1445247001ND
2014-09-17Q1445247002ND
2014-12-29Q1460957002ND
2014-12-29Q1460957001ND
2015-03-25Q1511437002ND
2015-03-25Q1511437001ND
2015-06-24Q1523976002ND
2015-06-24Q1523976001ND
2015-09-22Q1537064008ND
2015-09-22Q1537064011ND
2015-09-22Q1537064010ND
2015-09-22Q1537064007ND
2015-12-10Q1549433002ND
2015-12-10Q1549433001ND
2016-03-28Q1612650002ND
2016-03-28Q1612650001ND
2016-06-22Q1625510004ND
2016-06-22Q1625510003ND
2016-09-21Q1639244006ND
2016-09-21Q1639244005ND
2016-09-21Q1639244004ND
2016-09-21Q1639244001ND
2016-12-07Q1653458001ND
2016-12-07Q1653458002ND
2017-03-15Q1711217010ND
2017-03-15Q1711217009ND
2017-05-18Q1720505002ND
2017-05-18Q1720505001ND
2017-08-17Q1736889002ND
2017-08-17Q1736889004ND
2017-08-17Q1736889006ND
2017-08-17Q1736889005ND
2017-11-16Q1759107002ND
2017-11-16Q1759107001ND
2018-02-21Q1807254006ND
2018-02-21Q1807254005ND
2018-05-24Q1820903002ND
2018-05-24Q1820903001ND
2018-08-20Q1833137006ND
2018-08-20Q1833137001ND
2018-08-20Q1833137004ND
2018-08-20Q1833137003ND
2018-11-08Q1844907002ND
2018-11-08Q1844907001ND
2019-03-04Q1909014018ND
2019-03-04Q1909014017ND
2019-05-09Q1923237002ND
2019-05-09Q1923237001ND
2019-09-19Q1966997006ND
2019-09-19Q1966997005ND
2019-09-19Q1966997003ND
2019-09-19Q1966997001ND
2019-11-25Q1978055001ND
2019-11-25Q1978055002ND