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EWG's Tap Water Database — 2019 UPDATE

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Bromoform

West Wise Special Utility District

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.

 

54

Samples

0

Samples exceeding legal limit (MCL)

31

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20120.866 ppb96ND - 1.80 ppb
20132.29 ppb991.30 ppb - 3.48 ppb
20144.50 ppb992.60 ppb - 8.70 ppb
20151.03 ppb92ND - 5.10 ppb
2016ND90ND
20170.832 ppb95ND - 1.99 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
2012-02-2812027420041.000 ppb
2012-02-281202742005ND
2012-05-031205150002ND
2012-05-031205150001ND
2012-08-0812084600031.10 ppb
2012-08-0812084600041.000 ppb
2012-08-0812084600011.29 ppb
2012-11-1412115250011.60 ppb
2012-11-1412115250021.80 ppb
2013-02-0413020590101.30 ppb
2013-02-0413020590091.40 ppb
2013-06-17Q13024180041.82 ppb
2013-06-17Q13024180032.22 ppb
2013-09-17Q13073790041.99 ppb
2013-09-17Q13073790053.06 ppb
2013-09-17Q13073790062.06 ppb
2013-12-23Q13192550043.48 ppb
2013-12-23Q13192550033.30 ppb
2014-03-19Q14090010053.50 ppb
2014-03-19Q14090010044.10 ppb
2014-06-24Q14234240023.50 ppb
2014-06-24Q14234240018.70 ppb
2014-09-24Q14474220054.00 ppb
2014-09-24Q14474220043.80 ppb
2014-09-24Q14474220022.60 ppb
2014-12-08Q14589330024.90 ppb
2014-12-08Q14589330015.40 ppb
2015-03-23Q15108610065.10 ppb
2015-03-23Q15108610054.20 ppb
2015-06-11Q1521679003ND
2015-06-11Q1521679002ND
2015-09-10Q1535194005ND
2015-09-10Q1535194001ND
2015-09-10Q1535194004ND
2015-11-30Q1547071001ND
2015-11-30Q1547071002ND
2016-03-17Q1611140005ND
2016-03-17Q1611140004ND
2016-06-21Q1625427002ND
2016-06-21Q1625427001ND
2016-09-08Q1636417001ND
2016-09-08Q1636417004ND
2016-09-08Q1636417005ND
2016-12-06Q1653276002ND
2016-12-06Q1653276001ND
2017-02-27Q1708324005ND
2017-02-27Q1708324004ND
2017-05-16Q1719928002ND
2017-05-16Q1719928001ND
2017-09-25Q17463330051.24 ppb
2017-09-25Q17463330041.99 ppb
2017-09-25Q17463330021.26 ppb
2017-12-14Q17661740021.44 ppb
2017-12-14Q17661740011.56 ppb