Menu

EWG's Tap Water Database — 2019 UPDATE

Donate

Dibromochloromethane

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 dibromochloromethane. Sample information shown below was taken by Missouri American St. Louis County & St. Charles County.

Dibromochloromethane, one of the total trihalomethanes (TTHMs), is formed when chlorine or other disinfectants are used to treat drinking water. Dibromochloromethane 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)

257

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20122.07 ppb660.810 ppb - 3.43 ppb
20130.196 ppb82ND - 0.940 ppb
20141.73 ppb86ND - 4.71 ppb
20151.18 ppb87ND - 2.73 ppb
20160.741 ppb85ND - 1.70 ppb
20171.64 ppb87ND - 2.72 ppb

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.1 ppb

The EWG Health Guideline of 0.1 ppb for dibromochloromethane 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 dibromochloromethane. Sample information shown below was taken by Missouri American St. Louis County & St. Charles County.

Date Lab ID Result
2012-01-05155854012.70 ppb
2012-01-05155855014.60 ppb
2012-01-05155856011.90 ppb
2012-01-0515587101ND
2012-01-05155926012.60 ppb
2012-01-0515595201ND
2012-01-0515824101ND
2012-01-0515825201ND
2012-01-05158257010.900 ppb
2012-01-05158258011.000 ppb
2012-01-05158259012.60 ppb
2012-01-05158260010.700 ppb
2012-01-0515826101ND
2012-01-05158262011.70 ppb
2012-01-0515827601ND
2012-01-05158287014.20 ppb
2012-01-0516160001ND
2012-01-0516160101ND
2012-01-0516160201ND
2012-01-05161619010.600 ppb
2012-01-05161620011.10 ppb
2012-01-0516162101ND
2012-01-05161622010.500 ppb
2012-05-08161147010.800 ppb
2012-05-08161149011.000 ppb
2012-05-0816115501ND
2012-05-0816420201ND
2012-05-08171298010.500 ppb
2012-05-08171300010.900 ppb
2012-05-08171302011.30 ppb
2012-05-08171304011.000 ppb
2012-05-08171306010.600 ppb
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
2012-05-08185276010.900 ppb
2012-08-0118287701ND
2012-08-0118287801ND
2012-08-01182879010.600 ppb
2012-08-01182881010.700 ppb
2012-08-0118288201ND
2012-08-01182883011.20 ppb
2012-08-01182886013.40 ppb
2012-08-01182887012.90 ppb
2012-08-01182888013.20 ppb
2012-08-01182889013.40 ppb
2012-08-01182890011.40 ppb
2012-08-01182897014.40 ppb
2012-08-01182898018.10 ppb
2012-08-01182899015.90 ppb
2012-08-01182900012.30 ppb
2012-08-0118290301ND
2012-08-0118290401ND
2012-08-0118290501ND
2012-08-0118290601ND
2012-08-01193768015.40 ppb
2012-08-0719664401ND
2012-11-05201564011.10 ppb
2012-11-05201565010.900 ppb
2012-11-05201566010.800 ppb
2012-11-05201567011.30 ppb
2012-11-05201570011.000 ppb
2012-11-05201571011.10 ppb
2012-11-05201572010.800 ppb
2012-11-05201573010.900 ppb
2012-11-05201574011.70 ppb
2012-11-05201577010.800 ppb
2012-11-05201578014.50 ppb
2012-11-05201579014.90 ppb
2012-11-05201580012.40 ppb
2012-11-05201585014.50 ppb
2012-11-05201586011.30 ppb
2012-11-0520158701ND
2012-11-05201588011.90 ppb
2012-11-05201589012.00 ppb
2012-11-05201590012.00 ppb
2012-11-05201597011.10 ppb
2012-11-05201600013.80 ppb
2013-02-1121015801ND
2013-02-1121016001ND
2013-02-1121016101ND
2013-02-1121016201ND
2013-02-1121016701ND
2013-02-1121016801ND
2013-02-1121016901ND
2013-02-11210171010.500 ppb
2013-02-11210172010.600 ppb
2013-02-1121017701ND
2013-02-11210178013.60 ppb
2013-02-11210179014.20 ppb
2013-02-11210180013.00 ppb
2013-02-11210190014.50 ppb
2013-02-11210191011.90 ppb
2013-02-11210192011.60 ppb
2013-02-11210194010.500 ppb
2013-02-1121019601ND
2013-02-11210197011.40 ppb
2013-02-1121020601ND
2013-02-11210208014.60 ppb
2013-05-22217968010.800 ppb
2013-05-22217969011.20 ppb
2013-05-22217972011.70 ppb
2013-05-22217973011.70 ppb
2013-05-22217978011.90 ppb
2013-05-22217979010.800 ppb
2013-05-22217980011.40 ppb
2013-05-22217982010.600 ppb
2013-05-22217983010.600 ppb
2013-05-22217988011.40 ppb
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
2013-08-07231703013.40 ppb
2013-08-07231704013.50 ppb
2013-08-07231706013.40 ppb
2013-08-07231707014.20 ppb
2013-08-07231712015.10 ppb
2013-08-07231713013.50 ppb
2013-08-07231714013.60 ppb
2013-08-07231716013.30 ppb
2013-08-07231717013.60 ppb
2013-08-07231722013.00 ppb
2013-08-07231723010.500 ppb
2013-08-07231724010.500 ppb
2013-08-07231725010.600 ppb
2013-08-0723173501ND
2013-08-0723173601ND
2013-08-0723173701ND
2013-08-0723173901ND
2013-08-0723174101ND
2013-08-0723174201ND
2013-08-0723175101ND
2013-08-0723175301ND
2013-11-06239309011.20 ppb
2013-11-06239310011.000 ppb
2013-11-06239313011.20 ppb
2013-11-06239314011.30 ppb
2013-11-06239319010.800 ppb
2013-11-06239320011.000 ppb
2013-11-06239321010.500 ppb
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
2014-02-19246906011.60 ppb
2014-02-19246907011.40 ppb
2014-02-19246909011.30 ppb
2014-02-19246910011.50 ppb
2014-02-19246914010.800 ppb
2014-02-19246915010.800 ppb
2014-02-19246916011.000 ppb
2014-02-19246917012.30 ppb
2014-02-19246921014.90 ppb
2014-02-19246922015.30 ppb
2014-02-19246923015.40 ppb
2014-02-19246931014.40 ppb
2014-02-19246932014.60 ppb
2014-02-19246933014.80 ppb
2014-02-19246934013.90 ppb
2014-02-19246935014.40 ppb
2014-05-14255916012.10 ppb
2014-05-14255917011.60 ppb
2014-05-14255919011.70 ppb
2014-05-14255920011.40 ppb
2014-05-14255924011.10 ppb
2014-05-14255925010.900 ppb
2014-05-14255926010.600 ppb
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
2014-07-23AC300682.26 ppb
2014-07-23AC300692.18 ppb
2014-07-23AC30070ND
2014-07-23AC30071ND
2014-07-23AC300721.64 ppb
2014-08-19265473013.70 ppb
2014-08-19265474014.40 ppb
2014-08-19265476014.20 ppb
2014-08-19265477014.10 ppb
2014-08-19265481013.20 ppb
2014-08-19265482013.50 ppb
2014-08-19265483013.10 ppb
2014-08-19265484013.60 ppb
2014-08-1926548801ND
2014-08-19265489010.500 ppb
2014-08-1926549001ND
2014-08-1926549801ND
2014-08-1926549901ND
2014-08-1926550001ND
2014-08-1926550101ND
2014-08-1926550201ND
2014-08-19AC309343.82 ppb
2014-08-19AC30935ND
2014-08-19AC309360.500 ppb
2014-08-19AC309373.72 ppb
2014-08-19AC309383.67 ppb
2014-08-19AC30939ND
2014-08-19AC309403.17 ppb
2014-08-19AC30941ND
2014-08-19AC309422.91 ppb
2014-08-19AC30943ND
2014-08-19AC309443.36 ppb
2014-08-19AC309453.10 ppb
2014-08-19AC30946ND
2014-08-19AC309472.70 ppb
2014-08-19AC30948ND
2014-08-19AC30949ND
2014-11-06273798012.40 ppb
2014-11-06273799012.20 ppb
2014-11-06273801012.30 ppb
2014-11-06273802012.00 ppb
2014-11-06273806012.50 ppb
2014-11-06273807012.60 ppb
2014-11-06273808011.30 ppb
2014-11-06273809013.00 ppb
2014-11-0627381301ND
2014-11-0627381401ND
2014-11-0627381501ND
2014-11-0627382301ND
2014-11-0627382401ND
2014-11-0627382501ND
2014-11-0627382601ND
2014-11-0627382701ND
2015-02-1228153001ND
2015-02-12281532010.800 ppb
2015-02-1228153701ND
2015-02-1228153901ND
2015-02-1228154001ND
2015-02-12281545013.10 ppb
2015-02-12281546013.00 ppb
2015-02-12281554012.60 ppb
2015-02-12281555012.90 ppb
2015-02-12281556011.40 ppb
2015-02-12281557011.70 ppb
2015-02-12281529010.500 ppb
2015-02-12281533010.600 ppb
2015-02-1228153801ND
2015-02-12281544012.70 ppb
2015-02-12281558011.40 ppb
2015-05-12288842011.80 ppb
2015-05-12288845012.70 ppb
2015-05-12288850011.000 ppb
2015-05-1228885101ND
2015-05-1228885901ND
2015-05-1228887001ND
2015-05-1228887101ND
2015-05-1228887201ND
2015-05-12288841011.70 ppb
2015-05-12288844011.10 ppb
2015-05-1228885201ND
2015-05-1228885301ND
2015-05-1228885801ND
2015-05-1228886001ND
2015-05-1228886901ND
2015-05-1228887301ND
2015-08-25298010011.70 ppb
2015-08-25298021010.700 ppb
2015-08-2529803701ND
2015-08-2529803901ND
2015-08-2529804101ND
2015-08-25298009011.000 ppb
2015-08-25298012011.80 ppb
2015-08-25298013011.20 ppb
2015-08-25298018011.80 ppb
2015-08-25298019012.10 ppb
2015-08-25298020011.10 ppb
2015-08-2529802601ND
2015-08-2529802701ND
2015-08-2529802801ND
2015-08-2529803801ND
2015-08-2529804001ND
2015-11-12306483015.10 ppb
2015-11-12306484015.10 ppb
2015-11-12306485015.00 ppb
2015-11-12306498011.000 ppb
2015-11-12306476011.10 ppb
2015-11-12306477011.30 ppb
2015-11-12306478010.700 ppb
2015-11-12306494012.00 ppb
2015-11-12306495012.70 ppb
2015-11-12306496011.20 ppb
2015-11-12306497011.70 ppb
2015-11-12306469011.20 ppb
2015-11-12306470011.40 ppb
2015-11-12306475011.70 ppb
2015-11-12306466011.10 ppb
2015-11-12306467011.10 ppb
2016-02-16312629010.800 ppb
2016-02-16312635011.20 ppb
2016-02-16312636010.800 ppb
2016-02-16312637011.000 ppb
2016-02-16312625010.800 ppb
2016-02-16312626010.900 ppb
2016-02-16312628010.900 ppb
2016-02-16312634011.40 ppb
2016-02-16312642013.10 ppb
2016-02-1631265701ND
2016-02-1631265301ND
2016-02-16312654010.800 ppb
2016-02-1631265501ND
2016-02-1631265601ND
2016-02-25315806013.60 ppb
2016-02-25315807013.70 ppb
2016-05-1731963301ND
2016-05-1731963401ND
2016-05-1731963601ND
2016-05-1731964401ND
2016-05-1731964501ND
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
2016-08-16330167010.700 ppb
2016-08-16330170010.900 ppb
2016-08-16330171010.900 ppb
2016-08-16330176010.500 ppb
2016-08-1633017701ND
2016-08-1633017901ND
2016-08-1633018501ND
2016-08-1633018601ND
2016-08-1633019501ND
2016-08-1633019801ND
2016-08-1633019901ND
2016-08-16330168011.20 ppb
2016-08-1633017801ND
2016-08-1633018401ND
2016-08-1633019601ND
2016-08-1633019701ND
2016-11-10337048010.600 ppb
2016-11-1033705001ND
2016-11-10337059012.30 ppb
2016-11-10337061013.90 ppb
2016-11-10337062012.00 ppb
2016-11-10337031011.60 ppb
2016-11-10337032012.00 ppb
2016-11-10337040011.000 ppb
2016-11-10337049010.600 ppb
2016-11-10337060011.50 ppb
2016-11-10337063010.800 ppb
2016-11-10337034012.30 ppb
2016-11-10337035011.70 ppb
2016-11-10337041011.50 ppb
2016-11-10337042011.10 ppb
2016-11-10337043010.900 ppb
2017-02-0234566501ND
2017-02-0234567001ND
2017-02-02345671010.800 ppb
2017-02-02345679013.70 ppb
2017-02-02345689012.60 ppb
2017-02-02345690012.50 ppb
2017-02-0234566101ND
2017-02-0234566201ND
2017-02-02345664010.600 ppb
2017-02-02345672010.700 ppb
2017-02-02345673010.700 ppb
2017-02-02345678011.90 ppb
2017-02-02345691013.20 ppb
2017-02-02345692013.70 ppb
2017-02-02345693011.80 ppb
2017-02-1634954301ND
2017-05-25354028010.900 ppb
2017-05-25354033011.000 ppb
2017-05-25354034010.800 ppb
2017-05-2535403601ND
2017-05-2535404101ND
2017-05-2535405301ND
2017-05-2535405401ND
2017-05-2535405801ND
2017-05-25354024010.800 ppb
2017-05-25354025010.600 ppb
2017-05-25354027010.800 ppb
2017-05-25354035010.700 ppb
2017-05-2535404201ND
2017-05-2535404301ND
2017-05-2535405501ND
2017-05-2535405601ND
2017-08-17365723012.60 ppb
2017-08-17365725012.70 ppb
2017-08-17365726012.80 ppb
2017-08-17365731011.70 ppb
2017-08-17365733011.10 ppb
2017-08-1736573701ND
2017-08-1736573801ND
2017-08-1736574801ND
2017-08-1736573901ND
2017-08-1736574701ND
2017-08-1736574901ND
2017-08-1736575001ND
2017-08-1736575101ND
2017-08-17365722012.20 ppb
2017-08-17365730012.50 ppb
2017-08-17365732011.90 ppb
2017-11-09376621011.40 ppb
2017-11-0937662201ND
2017-11-09376608012.30 ppb
2017-11-09376609012.40 ppb
2017-11-09376614011.40 ppb
2017-11-09376616011.10 ppb
2017-11-0937663201ND
2017-11-09376605011.70 ppb
2017-11-09376606012.30 ppb
2017-11-09376613011.70 ppb
2017-11-09376615011.10 ppb
2017-11-09376620016.40 ppb
2017-11-09376630010.600 ppb
2017-11-09376631010.900 ppb
2017-11-0937663301ND
2017-11-0937663401ND