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EWG's Tap Water Database — 2021 UPDATE

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Bromoform

Dalhart Municipal Water System

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

 

31

Samples

0

Samples exceeding legal limit (MCL)

1

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.240 ppb51ND - 1.20 ppb
2015ND50ND
2016ND60ND
2017ND50ND
2018ND50ND
2019ND50ND

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
2014-03-05Q1407152006ND
2014-06-10Q1420648004ND
2014-06-10Q14206480051.20 ppb
2014-08-05Q1434094002ND
2014-10-14Q1452308002ND
2015-03-03Q1508194003ND
2015-05-13Q1517580002ND
2015-05-13Q1517580003ND
2015-07-20Q1528029001ND
2015-11-17Q1545218002ND
2016-03-08Q1609643002ND
2016-03-29AD30920ND
2016-06-07Q1623457004ND
2016-06-07Q1623457001ND
2016-07-19Q1629667001ND
2016-10-26Q1645666002ND
2017-01-23Q1703238002ND
2017-04-19Q1716126002ND
2017-08-01Q1731742004ND
2017-08-01Q1731742002ND
2017-10-26Q1755087001ND
2018-01-24Q1803105002ND
2018-04-25Q1816869002ND
2018-08-07Q1831627001ND
2018-08-07Q1831627002ND
2018-10-23Q1842356001ND
2019-01-30Q1904802002ND
2019-04-16Q1915219002ND
2019-07-30Q1948990003ND
2019-07-30Q1948990001ND
2019-10-23Q1973428001ND