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EWG's Tap Water Database — 2019 UPDATE

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Bromoform

Jefferson County PWSD 10

NOTE: Jefferson County PWSD 10 purchases water from Missouri American St. Louis County & St. Charles County which is required to test for bromoform. Sample information shown below was taken by Missouri American St. Louis County & St. Charles County.

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.

 

447

Samples

0

Samples exceeding legal limit (MCL)

4

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND60ND
2013ND80ND
2014ND80ND
2015ND80ND
2016ND80ND
2017ND80ND

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

NOTE: Jefferson County PWSD 10 purchases water from Missouri American St. Louis County & St. Charles County which is required to test for bromoform. Sample information shown below was taken by Missouri American St. Louis County & St. Charles County.

Date Lab ID Result
2012-01-0515585401ND
2012-01-0515585501ND
2012-01-0515585601ND
2012-01-0515587101ND
2012-01-0515592601ND
2012-01-0515595201ND
2012-01-0515824101ND
2012-01-0515825201ND
2012-01-0515825701ND
2012-01-0515825801ND
2012-01-0515825901ND
2012-01-0515826001ND
2012-01-0515826101ND
2012-01-0515826201ND
2012-01-0515827601ND
2012-01-0515828701ND
2012-01-0516160001ND
2012-01-0516160101ND
2012-01-0516160201ND
2012-01-0516161901ND
2012-01-0516162001ND
2012-01-0516162101ND
2012-01-0516162201ND
2012-05-0816114701ND
2012-05-0816114901ND
2012-05-0816115501ND
2012-05-0816420201ND
2012-05-0817129801ND
2012-05-0817130001ND
2012-05-0817130201ND
2012-05-0817130401ND
2012-05-0817130601ND
2012-05-0817130801ND
2012-05-0817132101ND
2012-05-0817132401ND
2012-05-0817133001ND
2012-05-0817133201ND
2012-05-0817133401ND
2012-05-0817133601ND
2012-05-0817133801ND
2012-05-0817175501ND
2012-05-0817406201ND
2012-05-0817408001ND
2012-05-0818527601ND
2012-08-0118287701ND
2012-08-0118287801ND
2012-08-0118287901ND
2012-08-0118288101ND
2012-08-0118288201ND
2012-08-0118288301ND
2012-08-0118288601ND
2012-08-0118288701ND
2012-08-0118288801ND
2012-08-0118288901ND
2012-08-0118289001ND
2012-08-0118289701ND
2012-08-01182898010.700 ppb
2012-08-01182899010.500 ppb
2012-08-0118290001ND
2012-08-0118290301ND
2012-08-0118290401ND
2012-08-0118290501ND
2012-08-0118290601ND
2012-08-01193768010.500 ppb
2012-08-0719664401ND
2012-11-0520156401ND
2012-11-0520156501ND
2012-11-0520156601ND
2012-11-0520156701ND
2012-11-0520157001ND
2012-11-0520157101ND
2012-11-0520157201ND
2012-11-0520157301ND
2012-11-0520157401ND
2012-11-0520157701ND
2012-11-0520157801ND
2012-11-0520157901ND
2012-11-0520158001ND
2012-11-0520158501ND
2012-11-0520158601ND
2012-11-0520158701ND
2012-11-0520158801ND
2012-11-0520158901ND
2012-11-0520159001ND
2012-11-0520159701ND
2012-11-0520160001ND
2013-02-1121015801ND
2013-02-1121016001ND
2013-02-1121016101ND
2013-02-1121016201ND
2013-02-1121016701ND
2013-02-1121016801ND
2013-02-1121016901ND
2013-02-1121017101ND
2013-02-1121017201ND
2013-02-1121017701ND
2013-02-1121017801ND
2013-02-1121017901ND
2013-02-1121018001ND
2013-02-1121019001ND
2013-02-1121019101ND
2013-02-1121019201ND
2013-02-1121019401ND
2013-02-1121019601ND
2013-02-1121019701ND
2013-02-1121020601ND
2013-02-1121020801ND
2013-05-2221796801ND
2013-05-2221796901ND
2013-05-2221797201ND
2013-05-2221797301ND
2013-05-2221797801ND
2013-05-2221797901ND
2013-05-2221798001ND
2013-05-2221798201ND
2013-05-2221798301ND
2013-05-2221798801ND
2013-05-2221798901ND
2013-05-2221799001ND
2013-05-2221799101ND
2013-05-2221800101ND
2013-05-2221800201ND
2013-05-2221800301ND
2013-05-2221800501ND
2013-05-2221800701ND
2013-05-2221800801ND
2013-05-2221801801ND
2013-05-2221802001ND
2013-08-0723170301ND
2013-08-0723170401ND
2013-08-0723170601ND
2013-08-07231707010.600 ppb
2013-08-07231712010.600 ppb
2013-08-0723171301ND
2013-08-07231714010.500 ppb
2013-08-0723171601ND
2013-08-07231717010.500 ppb
2013-08-0723172201ND
2013-08-0723172301ND
2013-08-0723172401ND
2013-08-0723172501ND
2013-08-0723173501ND
2013-08-0723173601ND
2013-08-0723173701ND
2013-08-0723173901ND
2013-08-0723174101ND
2013-08-0723174201ND
2013-08-0723175101ND
2013-08-0723175301ND
2013-11-0623930901ND
2013-11-0623931001ND
2013-11-0623931301ND
2013-11-0623931401ND
2013-11-0623931901ND
2013-11-0623932001ND
2013-11-0623932101ND
2013-11-0623932301ND
2013-11-0623932401ND
2013-11-0623932901ND
2013-11-0623933001ND
2013-11-0623933101ND
2013-11-0623933201ND
2013-11-0623934201ND
2013-11-0623934301ND
2013-11-0623934401ND
2013-11-0623934601ND
2013-11-0623934801ND
2013-11-0623934901ND
2013-11-0623935801ND
2013-11-0623936001ND
2014-02-1924690601ND
2014-02-1924690701ND
2014-02-1924690901ND
2014-02-1924691001ND
2014-02-1924691401ND
2014-02-1924691501ND
2014-02-1924691601ND
2014-02-1924691701ND
2014-02-1924692101ND
2014-02-1924692201ND
2014-02-19246923010.600 ppb
2014-02-1924693101ND
2014-02-1924693201ND
2014-02-1924693301ND
2014-02-1924693401ND
2014-02-1924693501ND
2014-05-1425591601ND
2014-05-1425591701ND
2014-05-1425591901ND
2014-05-1425592001ND
2014-05-1425592401ND
2014-05-1425592501ND
2014-05-1425592601ND
2014-05-1425592701ND
2014-05-1425593101ND
2014-05-1425593201ND
2014-05-1425593301ND
2014-05-1425594101ND
2014-05-1425594201ND
2014-05-1425594301ND
2014-05-1425594401ND
2014-05-1425594501ND
2014-07-23AC30068ND
2014-07-23AC30069ND
2014-07-23AC30070ND
2014-07-23AC30071ND
2014-07-23AC30072ND
2014-08-1926547301ND
2014-08-1926547401ND
2014-08-1926547601ND
2014-08-1926547701ND
2014-08-1926548101ND
2014-08-1926548201ND
2014-08-1926548301ND
2014-08-1926548401ND
2014-08-1926548801ND
2014-08-1926548901ND
2014-08-1926549001ND
2014-08-1926549801ND
2014-08-1926549901ND
2014-08-1926550001ND
2014-08-1926550101ND
2014-08-1926550201ND
2014-08-19AC30934ND
2014-08-19AC30935ND
2014-08-19AC30936ND
2014-08-19AC30937ND
2014-08-19AC30938ND
2014-08-19AC30939ND
2014-08-19AC30940ND
2014-08-19AC30941ND
2014-08-19AC30942ND
2014-08-19AC30943ND
2014-08-19AC30944ND
2014-08-19AC30945ND
2014-08-19AC30946ND
2014-08-19AC30947ND
2014-08-19AC30948ND
2014-08-19AC30949ND
2014-11-0627379801ND
2014-11-0627379901ND
2014-11-0627380101ND
2014-11-0627380201ND
2014-11-0627380601ND
2014-11-0627380701ND
2014-11-0627380801ND
2014-11-0627380901ND
2014-11-0627381301ND
2014-11-0627381401ND
2014-11-0627381501ND
2014-11-0627382301ND
2014-11-0627382401ND
2014-11-0627382501ND
2014-11-0627382601ND
2014-11-0627382701ND
2015-02-1228152901ND
2015-02-1228153301ND
2015-02-1228153801ND
2015-02-1228154401ND
2015-02-1228155801ND
2015-02-1228153001ND
2015-02-1228153201ND
2015-02-1228153701ND
2015-02-1228153901ND
2015-02-1228154001ND
2015-02-1228154501ND
2015-02-1228154601ND
2015-02-1228155401ND
2015-02-1228155501ND
2015-02-1228155601ND
2015-02-1228155701ND
2015-05-1228884201ND
2015-05-1228884501ND
2015-05-1228885001ND
2015-05-1228885101ND
2015-05-1228885901ND
2015-05-1228887001ND
2015-05-1228887101ND
2015-05-1228887201ND
2015-05-1228884101ND
2015-05-1228884401ND
2015-05-1228885201ND
2015-05-1228885301ND
2015-05-1228885801ND
2015-05-1228886001ND
2015-05-1228886901ND
2015-05-1228887301ND
2015-08-2529800901ND
2015-08-2529801201ND
2015-08-2529801301ND
2015-08-2529801801ND
2015-08-2529801901ND
2015-08-2529802001ND
2015-08-2529802601ND
2015-08-2529802701ND
2015-08-2529802801ND
2015-08-2529803801ND
2015-08-2529804001ND
2015-08-2529801001ND
2015-08-2529802101ND
2015-08-2529803701ND
2015-08-2529803901ND
2015-08-2529804101ND
2015-11-1230646601ND
2015-11-1230646701ND
2015-11-1230646901ND
2015-11-1230647001ND
2015-11-1230647501ND
2015-11-1230647601ND
2015-11-1230647701ND
2015-11-1230647801ND
2015-11-1230649801ND
2015-11-1230648301ND
2015-11-1230648401ND
2015-11-1230648501ND
2015-11-1230649401ND
2015-11-1230649501ND
2015-11-1230649601ND
2015-11-1230649701ND
2016-02-1631262901ND
2016-02-1631263501ND
2016-02-1631263601ND
2016-02-1631263701ND
2016-02-1631265701ND
2016-02-1631262501ND
2016-02-1631262601ND
2016-02-1631262801ND
2016-02-1631263401ND
2016-02-1631264201ND
2016-02-1631265301ND
2016-02-1631265401ND
2016-02-1631265501ND
2016-02-1631265601ND
2016-02-2531580601ND
2016-02-2531580701ND
2016-05-1731965001ND
2016-05-1731965101ND
2016-05-1731966101ND
2016-05-1731966301ND
2016-05-1731966401ND
2016-05-1731963701ND
2016-05-1731964201ND
2016-05-1731964301ND
2016-05-1731965201ND
2016-05-1731966201ND
2016-05-1731966501ND
2016-05-1731963301ND
2016-05-1731963401ND
2016-05-1731963601ND
2016-05-1731964401ND
2016-05-1731964501ND
2016-08-1633016701ND
2016-08-1633017001ND
2016-08-1633017101ND
2016-08-1633017601ND
2016-08-1633017701ND
2016-08-1633017901ND
2016-08-1633018501ND
2016-08-1633018601ND
2016-08-1633019501ND
2016-08-1633019801ND
2016-08-1633019901ND
2016-08-1633016801ND
2016-08-1633017801ND
2016-08-1633018401ND
2016-08-1633019601ND
2016-08-1633019701ND
2016-11-1033703401ND
2016-11-1033703501ND
2016-11-1033704101ND
2016-11-1033704201ND
2016-11-1033704301ND
2016-11-1033704801ND
2016-11-1033705001ND
2016-11-1033705901ND
2016-11-1033706101ND
2016-11-1033706201ND
2016-11-1033703101ND
2016-11-1033703201ND
2016-11-1033704001ND
2016-11-1033704901ND
2016-11-1033706001ND
2016-11-1033706301ND
2017-02-0234566501ND
2017-02-0234567001ND
2017-02-0234567101ND
2017-02-0234567901ND
2017-02-0234568901ND
2017-02-0234569001ND
2017-02-0234566101ND
2017-02-0234566201ND
2017-02-0234566401ND
2017-02-0234567201ND
2017-02-0234567301ND
2017-02-0234567801ND
2017-02-0234569101ND
2017-02-0234569201ND
2017-02-0234569301ND
2017-02-1634954301ND
2017-05-2535402801ND
2017-05-2535403301ND
2017-05-2535403401ND
2017-05-2535403601ND
2017-05-2535404101ND
2017-05-2535405301ND
2017-05-2535405401ND
2017-05-2535405801ND
2017-05-2535402401ND
2017-05-2535402501ND
2017-05-2535402701ND
2017-05-2535403501ND
2017-05-2535404201ND
2017-05-2535404301ND
2017-05-2535405501ND
2017-05-2535405601ND
2017-08-1736572201ND
2017-08-1736573001ND
2017-08-1736573201ND
2017-08-1736573901ND
2017-08-1736574701ND
2017-08-1736574901ND
2017-08-1736575001ND
2017-08-1736575101ND
2017-08-1736572301ND
2017-08-1736572501ND
2017-08-1736572601ND
2017-08-1736573101ND
2017-08-1736573301ND
2017-08-1736573701ND
2017-08-1736573801ND
2017-08-1736574801ND
2017-11-0937660801ND
2017-11-0937660901ND
2017-11-0937661401ND
2017-11-0937661601ND
2017-11-0937662101ND
2017-11-0937662201ND
2017-11-0937663201ND
2017-11-0937660601ND
2017-11-0937661301ND
2017-11-0937661501ND
2017-11-0937662001ND
2017-11-0937663001ND
2017-11-0937663101ND
2017-11-0937663301ND
2017-11-0937663401ND
2017-11-0937660501ND