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EWG's Tap Water Database — 2021 UPDATE

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Bromoform

City of Atchison

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

 

96

Samples

0

Samples exceeding legal limit (MCL)

37

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND160ND
20150.168 ppb164ND - 0.750 ppb
20160.336 ppb168ND - 0.810 ppb
20170.406 ppb169ND - 0.850 ppb
20180.434 ppb1610ND - 0.910 ppb
20190.221 ppb166ND - 0.710 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
2014-02-1160156ND
2014-02-1160126ND
2014-02-1160109ND
2014-02-1160097ND
2014-05-19116410ND
2014-05-19116408ND
2014-05-19116406ND
2014-05-19116404ND
2014-08-26180753ND
2014-08-26180752ND
2014-08-26180754ND
2014-08-26180755ND
2014-11-17232375ND
2014-11-17232374ND
2014-11-17232372ND
2014-11-17232371ND
2015-02-17280148ND
2015-02-17280147ND
2015-02-17280146ND
2015-02-17280145ND
2015-05-04322088ND
2015-05-04322089ND
2015-05-04322091ND
2015-05-04322090ND
2015-08-03377303ND
2015-08-03377302ND
2015-08-03377301ND
2015-08-03377300ND
2015-11-164280350.630 ppb
2015-11-164280340.570 ppb
2015-11-164280330.750 ppb
2015-11-164280320.740 ppb
2016-02-08490343ND
2016-02-08490342ND
2016-02-08490344ND
2016-02-08490345ND
2016-05-23550974ND
2016-05-23550973ND
2016-05-23550972ND
2016-05-23550971ND
2016-08-166042280.540 ppb
2016-08-166042270.620 ppb
2016-08-166042260.810 ppb
2016-08-166042250.620 ppb
2016-12-126741140.730 ppb
2016-12-126741170.750 ppb
2016-12-126741160.690 ppb
2016-12-126741150.620 ppb
2017-03-06720594ND
2017-03-06720593ND
2017-03-06720592ND
2017-03-06720591ND
2017-05-227656140.800 ppb
2017-05-227656130.540 ppb
2017-05-22765612ND
2017-05-227656110.660 ppb
2017-08-148196740.840 ppb
2017-08-148196730.850 ppb
2017-08-148196750.750 ppb
2017-08-14819676ND
2017-11-068721250.720 ppb
2017-11-068721240.630 ppb
2017-11-06872123ND
2017-11-068721220.700 ppb
2018-02-12907952ND
2018-02-129079510.590 ppb
2018-02-129079500.700 ppb
2018-02-129079490.720 ppb
2018-05-14970871ND
2018-05-14970872ND
2018-05-149708740.590 ppb
2018-05-14970873ND
2018-08-2010290380.910 ppb
2018-08-2010290370.700 ppb
2018-08-2010290360.850 ppb
2018-08-2010290350.760 ppb
2018-11-051073733ND
2018-11-0510737320.580 ppb
2018-11-051073731ND
2018-11-0510737300.550 ppb
2019-03-041131762ND
2019-03-041131761ND
2019-03-041131763ND
2019-03-041131764ND
2019-05-201157747ND
2019-05-201157746ND
2019-05-201157745ND
2019-05-201157744ND
2019-08-1212226500.550 ppb
2019-08-121222649ND
2019-08-1212226480.570 ppb
2019-08-1212226470.540 ppb
2019-11-181277316ND
2019-11-1812773190.710 ppb
2019-11-1812773180.620 ppb
2019-11-1812773170.550 ppb