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EWG's Tap Water Database — 2021 UPDATE

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Bromoform

Leavenworth Water Department

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

 

92

Samples

0

Samples exceeding legal limit (MCL)

36

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.507 ppb1610ND - 1.30 ppb
20150.568 ppb1611ND - 1.000 ppb
20160.348 ppb167ND - 1.000 ppb
20170.129 ppb163ND - 0.770 ppb
20180.293 ppb125ND - 0.870 ppb
20190.0338 ppb161ND - 0.540 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
2014-02-11564590.516 ppb
2014-02-11564560.503 ppb
2014-02-1156453ND
2014-02-11564500.505 ppb
2014-05-06109260ND
2014-05-061092570.770 ppb
2014-05-061092540.510 ppb
2014-05-061092500.500 ppb
2014-08-191750281.20 ppb
2014-08-191750271.20 ppb
2014-08-191750291.30 ppb
2014-08-191750301.10 ppb
2014-11-12229830ND
2014-11-12229826ND
2014-11-12229823ND
2014-11-12229821ND
2015-02-10276647ND
2015-02-10276645ND
2015-02-10276643ND
2015-02-10276641ND
2015-05-123311411.000 ppb
2015-05-123311400.680 ppb
2015-05-123311420.640 ppb
2015-05-123311430.660 ppb
2015-08-11381946ND
2015-08-113819450.880 ppb
2015-08-113819440.820 ppb
2015-08-113819430.790 ppb
2015-11-044279600.980 ppb
2015-11-044279590.960 ppb
2015-11-044279580.980 ppb
2015-11-044279570.690 ppb
2016-02-164934460.940 ppb
2016-02-164934431.000 ppb
2016-02-164934440.880 ppb
2016-02-164934450.930 ppb
2016-05-235501170.600 ppb
2016-05-23550116ND
2016-05-235501150.550 ppb
2016-05-23550114ND
2016-08-09599450ND
2016-08-095994480.670 ppb
2016-08-09599446ND
2016-08-09599444ND
2016-11-08656474ND
2016-11-08656473ND
2016-11-08656472ND
2016-11-08656471ND
2017-02-07704243ND
2017-02-07704242ND
2017-02-07704241ND
2017-02-07704240ND
2017-05-09753140ND
2017-05-09753139ND
2017-05-09753138ND
2017-05-09753137ND
2017-08-098150910.770 ppb
2017-08-09815089ND
2017-08-098150900.720 ppb
2017-08-09815092ND
2017-11-07871963ND
2017-11-07871961ND
2017-11-078719590.580 ppb
2017-11-07871957ND
2018-02-06907654ND
2018-02-06907653ND
2018-02-06907652ND
2018-02-06907651ND
2018-08-0710208830.870 ppb
2018-08-071020880ND
2018-08-071020881ND
2018-08-0710208820.640 ppb
2018-11-0710743010.640 ppb
2018-11-0710743000.680 ppb
2018-11-0710742990.690 ppb
2018-11-071074298ND
2019-02-051114081ND
2019-02-051114082ND
2019-02-051114083ND
2019-02-051114084ND
2019-05-071157578ND
2019-05-071157577ND
2019-05-071157576ND
2019-05-071157575ND
2019-08-051214807ND
2019-08-051214806ND
2019-08-051214805ND
2019-08-051214804ND
2019-11-051268489ND
2019-11-051268490ND
2019-11-051268491ND
2019-11-0512684880.540 ppb