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EWG's Tap Water Database — 2021 UPDATE

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Bromoform

Decatur

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

 

192

Samples

0

Samples exceeding legal limit (MCL)

32

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
20140.121 ppb326ND - 0.702 ppb
20150.457 ppb3214ND - 3.46 ppb
20160.0184 ppb321ND - 0.588 ppb
20170.0319 ppb322ND - 0.510 ppb
20180.151 ppb327ND - 0.730 ppb
20190.0355 ppb322ND - 0.594 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
2014-02-134021936-01ND
2014-02-134021936-020.702 ppb
2014-02-134021936-030.671 ppb
2014-02-134021936-040.639 ppb
2014-02-134021936-050.566 ppb
2014-02-134021936-060.691 ppb
2014-02-134021936-07ND
2014-02-134021936-080.618 ppb
2014-05-134052163-01ND
2014-05-134052163-02ND
2014-05-134052163-03ND
2014-05-134052163-04ND
2014-05-134052163-05ND
2014-05-134052163-06ND
2014-05-134052163-07ND
2014-05-134052163-08ND
2014-08-124082631-01ND
2014-08-124082631-02ND
2014-08-124082631-03ND
2014-08-124082631-04ND
2014-08-124082631-05ND
2014-08-124082631-06ND
2014-08-124082631-07ND
2014-08-124082631-08ND
2014-11-144112232-01ND
2014-11-144112232-02ND
2014-11-144112232-03ND
2014-11-144112232-04ND
2014-11-144112232-05ND
2014-11-144112232-06ND
2014-11-144112232-07ND
2014-11-144112232-08ND
2015-02-115022144-01ND
2015-02-115022144-020.861 ppb
2015-02-115022144-030.771 ppb
2015-02-115022144-040.864 ppb
2015-02-115022144-05ND
2015-02-115022144-060.751 ppb
2015-02-115022144-07ND
2015-02-115022144-080.742 ppb
2015-05-135052465-01ND
2015-05-135052465-020.566 ppb
2015-05-135052465-033.46 ppb
2015-05-135052465-040.511 ppb
2015-05-135052465-053.42 ppb
2015-05-135052465-060.543 ppb
2015-05-135052465-07ND
2015-05-135052465-080.505 ppb
2015-08-115082349-01ND
2015-08-115082349-02ND
2015-08-115082349-03ND
2015-08-115082349-04ND
2015-08-115082349-05ND
2015-08-115082349-06ND
2015-08-115082349-07ND
2015-08-115082349-08ND
2015-11-125112244-01ND
2015-11-125112244-020.592 ppb
2015-11-125112244-03ND
2015-11-125112244-040.539 ppb
2015-11-125112244-05ND
2015-11-125112244-06ND
2015-11-125112244-07ND
2015-11-125112244-080.507 ppb
2016-02-176023060-01ND
2016-02-176023060-020.588 ppb
2016-02-176023060-03ND
2016-02-176023060-04ND
2016-02-176023060-05ND
2016-02-176023060-06ND
2016-02-176023060-07ND
2016-02-176023060-08ND
2016-05-106051793-01ND
2016-05-106051793-02ND
2016-05-106051793-03ND
2016-05-106051793-04ND
2016-05-106051793-05ND
2016-05-106051793-06ND
2016-05-106051793-07ND
2016-05-106051793-08ND
2016-08-186083958-01ND
2016-08-186083958-02ND
2016-08-186083958-03ND
2016-08-186083958-04ND
2016-08-186083958-05ND
2016-08-186083958-06ND
2016-08-186083958-07ND
2016-08-186083958-08ND
2016-11-0816K0230-06ND
2016-11-0816K0230-07ND
2016-11-0816K0230-08ND
2016-11-0916K0230-01ND
2016-11-0916K0230-02ND
2016-11-0916K0230-03ND
2016-11-0916K0230-04ND
2016-11-0916K0230-05ND
2017-02-0717B0188-09ND
2017-02-0717B0188-10ND
2017-02-0717B0188-11ND
2017-02-0717B0188-12ND
2017-02-0717B0188-05ND
2017-02-0717B0188-06ND
2017-02-0717B0188-07ND
2017-02-0717B0188-08ND
2017-05-0917E0314-01ND
2017-05-0917E0314-02ND
2017-05-0917E0314-03ND
2017-05-0917E0314-04ND
2017-05-0917E0314-05ND
2017-05-0917E0314-06ND
2017-05-0917E0314-07ND
2017-05-0917E0314-08ND
2017-08-1517H0497-05ND
2017-08-1517H0497-06ND
2017-08-1517H0497-07ND
2017-08-1517H0497-08ND
2017-08-1517H0497-01ND
2017-08-1517H0497-02ND
2017-08-1517H0497-03ND
2017-08-1517H0497-04ND
2017-11-1517K0400-01ND
2017-11-1517K0400-020.510 ppb
2017-11-1517K0400-030.510 ppb
2017-11-1517K0400-04ND
2017-11-1517K0400-05ND
2017-11-1517K0400-06ND
2017-11-1517K0400-07ND
2017-11-1517K0400-08ND
2018-02-1418B0276-010.660 ppb
2018-02-1418B0276-020.630 ppb
2018-02-1418B0276-03ND
2018-02-1418B0276-040.650 ppb
2018-02-1418B0276-050.720 ppb
2018-02-1418B0276-060.730 ppb
2018-02-1418B0276-070.730 ppb
2018-02-1418B0276-080.700 ppb
2018-05-168053597-01ND
2018-05-168053597-02ND
2018-05-168053597-03ND
2018-05-168053597-04ND
2018-05-168053597-05ND
2018-05-168053597-06ND
2018-05-168053597-07ND
2018-05-168053597-08ND
2018-08-1618H0431-01ND
2018-08-1618H0431-02ND
2018-08-1618H0431-03ND
2018-08-1618H0431-04ND
2018-08-1618H0431-05ND
2018-08-1618H0431-06ND
2018-08-1618H0431-07ND
2018-08-1618H0431-08ND
2018-11-158113589-01ND
2018-11-158113589-02ND
2018-11-158113589-03ND
2018-11-158113589-04ND
2018-11-158113589-05ND
2018-11-158113589-06ND
2018-11-158113589-07ND
2018-11-158113589-08ND
2019-02-149022773-01ND
2019-02-149022773-02ND
2019-02-149022773-03ND
2019-02-149022773-04ND
2019-02-149022773-05ND
2019-02-149022773-06ND
2019-02-149022773-07ND
2019-02-149022773-08ND
2019-05-149053385-01ND
2019-05-149053385-02ND
2019-05-149053385-03ND
2019-05-149053385-04ND
2019-05-149053385-05ND
2019-05-149053385-06ND
2019-05-149053385-07ND
2019-05-149053385-08ND
2019-08-139083209-010.594 ppb
2019-08-139083209-020.542 ppb
2019-08-139083209-03ND
2019-08-139083209-04ND
2019-08-139083209-05ND
2019-08-139083209-06ND
2019-08-139083209-07ND
2019-08-139083209-08ND
2019-11-129112155-01ND
2019-11-129112155-03ND
2019-11-129112155-04ND
2019-11-129112155-05ND
2019-11-129112155-06ND
2019-11-129112155-07ND
2019-11-129112155-08ND
2019-11-139112155-02ND