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EWG's Tap Water Database — 2019 UPDATE

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Bromoform

City of Royse City

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.

 

96

Samples

0

Samples exceeding legal limit (MCL)

54

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20120.200 ppb162ND - 1.60 ppb
20130.898 ppb1612ND - 1.50 ppb
20142.94 ppb16161.50 ppb - 4.70 ppb
20152.94 ppb168ND - 7.01 ppb
2016ND160ND
20173.62 ppb16161.71 ppb - 5.82 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
2012-01-1812014160041.60 ppb
2012-01-1812014160031.60 ppb
2012-01-181201416002ND
2012-01-181201416001ND
2012-05-291205837004ND
2012-05-291205837003ND
2012-05-291205837002ND
2012-05-291205837001ND
2012-08-081208399002ND
2012-08-081208399001ND
2012-08-081208399003ND
2012-08-081208399004ND
2012-10-301211001005ND
2012-10-301211001004ND
2012-10-301211001003ND
2012-10-301211001002ND
2013-03-0613032560051.10 ppb
2013-03-0613032560041.10 ppb
2013-03-0613032560031.000 ppb
2013-03-0613032560021.000 ppb
2013-04-261304A000011.20 ppb
2013-04-261304A000021.20 ppb
2013-04-261304A000041.10 ppb
2013-04-261304A000031.20 ppb
2013-08-01Q13047780081.39 ppb
2013-08-01Q13047780071.24 ppb
2013-08-01Q13047780061.33 ppb
2013-08-01Q13047780051.50 ppb
2013-10-29Q1310140008ND
2013-10-29Q1310140007ND
2013-10-29Q1310140006ND
2013-10-29Q1310140005ND
2014-02-12Q14044800022.17 ppb
2014-02-12Q14044800012.02 ppb
2014-02-12Q14044800032.10 ppb
2014-02-12Q14044800042.09 ppb
2014-04-28Q14135980041.50 ppb
2014-04-28Q14135980031.50 ppb
2014-04-28Q14135980021.60 ppb
2014-04-28Q14135980011.60 ppb
2014-07-14Q14279320043.80 ppb
2014-07-14Q14279320033.70 ppb
2014-07-14Q14279320024.60 ppb
2014-07-14Q14279320014.70 ppb
2014-10-16Q14528680014.50 ppb
2014-10-16Q14528680043.40 ppb
2014-10-16Q14528680033.40 ppb
2014-10-16Q14528680024.40 ppb
2015-01-20Q15018280044.90 ppb
2015-01-20Q15018280035.70 ppb
2015-01-20Q15018280025.30 ppb
2015-01-20Q15018280015.60 ppb
2015-04-28Q15158910045.12 ppb
2015-04-28Q15158910036.64 ppb
2015-04-28Q15158910027.01 ppb
2015-04-28Q15158910016.73 ppb
2015-07-17Q1527979002ND
2015-07-17Q1527979001ND
2015-07-17Q1527979003ND
2015-07-17Q1527979004ND
2015-10-12Q1540071004ND
2015-10-12Q1540071003ND
2015-10-12Q1540071002ND
2015-10-12Q1540071001ND
2016-02-09Q1605411004ND
2016-02-09Q1605411003ND
2016-02-09Q1605411002ND
2016-02-09Q1605411001ND
2016-05-04Q1617771001ND
2016-05-04Q1617771002ND
2016-05-04Q1617771004ND
2016-05-04Q1617771003ND
2016-08-01Q1631532004ND
2016-08-01Q1631532003ND
2016-08-01Q1631532002ND
2016-08-01Q1631532001ND
2016-10-19Q1644625004ND
2016-10-19Q1644625003ND
2016-10-19Q1644625001ND
2016-10-19Q1644625002ND
2017-01-24Q17030610014.17 ppb
2017-01-24Q17030610032.75 ppb
2017-01-24Q17030610023.54 ppb
2017-01-24Q17030610042.47 ppb
2017-04-20Q17163630055.30 ppb
2017-04-20Q17163630045.62 ppb
2017-04-20Q17163630035.70 ppb
2017-04-20Q17163630025.82 ppb
2017-07-19Q17297460023.73 ppb
2017-07-19Q17297460043.96 ppb
2017-07-19Q17297460012.88 ppb
2017-07-19Q17297460033.69 ppb
2017-10-18Q17537060032.08 ppb
2017-10-18Q17537060021.77 ppb
2017-10-18Q17537060041.71 ppb
2017-10-18Q17537060012.77 ppb