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EWG's Tap Water Database — 2019 UPDATE

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Bromoform

Shawnee County RWD 4C

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.

 

70

Samples

0

Samples exceeding legal limit (MCL)

49

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012N/A00N/A
20130.638 ppb440.550 ppb - 0.830 ppb
20141.58 ppb1615ND - 9.30 ppb
20150.847 ppb1611ND - 3.40 ppb
20160.538 ppb167ND - 2.20 ppb
20170.943 ppb1812ND - 2.10 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
2013-11-11605417TF0.830 ppb
2013-11-11605418TF0.550 ppb
2013-11-11605419TF0.560 ppb
2013-11-11605420TF0.610 ppb
2014-03-09748230.923 ppb
2014-03-10748290.798 ppb
2014-03-10748270.537 ppb
2014-03-10748250.721 ppb
2014-06-091250492.10 ppb
2014-06-091250512.20 ppb
2014-06-091250521.60 ppb
2014-06-091250501.50 ppb
2014-09-081897771.20 ppb
2014-09-08189780ND
2014-09-081897790.640 ppb
2014-09-081897780.570 ppb
2014-12-152467231.10 ppb
2014-12-152467210.970 ppb
2014-12-152467249.30 ppb
2014-12-152467221.10 ppb
2015-03-022860291.20 ppb
2015-03-022860300.850 ppb
2015-03-022860311.000 ppb
2015-03-022860320.950 ppb
2015-06-22351653ND
2015-06-223516540.570 ppb
2015-06-223516560.530 ppb
2015-06-22351655ND
2015-09-214089480.590 ppb
2015-09-21408951ND
2015-09-214089492.60 ppb
2015-09-214089500.910 ppb
2015-12-074543740.950 ppb
2015-12-07454373ND
2015-12-074543723.40 ppb
2015-12-07454371ND
2016-03-145085410.860 ppb
2016-03-145085400.750 ppb
2016-03-145085381.60 ppb
2016-03-145085390.800 ppb
2016-06-13562325ND
2016-06-13562326ND
2016-06-135623272.20 ppb
2016-06-13562328ND
2016-09-12620956ND
2016-09-12620959ND
2016-09-12620958ND
2016-09-12620957ND
2016-12-12670464ND
2016-12-12670467ND
2016-12-126704651.10 ppb
2016-12-126704661.30 ppb
2017-03-207262061.60 ppb
2017-03-207262072.00 ppb
2017-03-207262082.10 ppb
2017-03-207262091.60 ppb
2017-06-197804902.00 ppb
2017-06-197804921.20 ppb
2017-06-197804930.740 ppb
2017-06-197804910.830 ppb
2017-09-25845709ND
2017-09-25845710ND
2017-09-25845707ND
2017-09-25845708ND
2017-11-27882099_PACEND
2017-11-27882098_PACEND
2017-12-188939751.30 ppb
2017-12-188939741.10 ppb
2017-12-188939731.20 ppb
2017-12-188939761.30 ppb