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EWG's Tap Water Database — 2019 UPDATE

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Bromodichloromethane

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

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

406

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20127.80 ppb663.82 ppb - 11.5 ppb
20132.97 ppb881.24 ppb - 4.29 ppb
20146.44 ppb883.11 ppb - 13.1 ppb
20155.94 ppb883.05 ppb - 9.79 ppb
20164.85 ppb882.82 ppb - 7.15 ppb
20175.21 ppb883.84 ppb - 6.49 ppb

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.06 ppb

The EWG Health Guideline of 0.06 ppb for bromodichloromethane 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 bromodichloromethane. Sample information shown below was taken by Missouri American St. Louis County & St. Charles County.

Date Lab ID Result
2012-01-051558540110.3 ppb
2012-01-051558550112.7 ppb
2012-01-05155856015.90 ppb
2012-01-05155871010.500 ppb
2012-01-05155926017.80 ppb
2012-01-05155952012.20 ppb
2012-01-05158241011.30 ppb
2012-01-05158252012.00 ppb
2012-01-05158257013.30 ppb
2012-01-05158258013.10 ppb
2012-01-05158259017.50 ppb
2012-01-05158260013.10 ppb
2012-01-05158261011.40 ppb
2012-01-05158262015.60 ppb
2012-01-05158276010.800 ppb
2012-01-051582870111.0 ppb
2012-01-05161600012.40 ppb
2012-01-05161601011.20 ppb
2012-01-05161602011.90 ppb
2012-01-05161619012.60 ppb
2012-01-05161620013.40 ppb
2012-01-05161621012.30 ppb
2012-01-05161622012.30 ppb
2012-05-08161147014.40 ppb
2012-05-08161149015.50 ppb
2012-05-08161155013.30 ppb
2012-05-08164202010.600 ppb
2012-05-08171298014.10 ppb
2012-05-08171300016.10 ppb
2012-05-08171302016.40 ppb
2012-05-08171304016.00 ppb
2012-05-08171306013.20 ppb
2012-05-0817130801ND
2012-05-0817132101ND
2012-05-08171324010.500 ppb
2012-05-0817133001ND
2012-05-0817133201ND
2012-05-0817133401ND
2012-05-0817133601ND
2012-05-0817133801ND
2012-05-0817175501ND
2012-05-0817406201ND
2012-05-0817408001ND
2012-05-08185276015.50 ppb
2012-08-01182877011.20 ppb
2012-08-01182878011.000 ppb
2012-08-01182879011.40 ppb
2012-08-01182881011.70 ppb
2012-08-01182882011.10 ppb
2012-08-01182883013.20 ppb
2012-08-01182886018.90 ppb
2012-08-01182887018.80 ppb
2012-08-011828880110.1 ppb
2012-08-011828890111.1 ppb
2012-08-01182890015.20 ppb
2012-08-011828970110.8 ppb
2012-08-011828980116.7 ppb
2012-08-011828990113.1 ppb
2012-08-01182900015.70 ppb
2012-08-01182903010.900 ppb
2012-08-01182904011.000 ppb
2012-08-01182905010.900 ppb
2012-08-01182906011.000 ppb
2012-08-011937680111.6 ppb
2012-08-07196644011.000 ppb
2012-11-05201564014.70 ppb
2012-11-05201565014.30 ppb
2012-11-05201566014.00 ppb
2012-11-05201567015.30 ppb
2012-11-05201570014.20 ppb
2012-11-05201571014.70 ppb
2012-11-05201572013.30 ppb
2012-11-05201573013.40 ppb
2012-11-05201574015.20 ppb
2012-11-05201577013.10 ppb
2012-11-052015780113.0 ppb
2012-11-052015790113.6 ppb
2012-11-05201580016.50 ppb
2012-11-052015850112.9 ppb
2012-11-05201586014.00 ppb
2012-11-0520158701ND
2012-11-05201588015.60 ppb
2012-11-05201589016.00 ppb
2012-11-05201590015.60 ppb
2012-11-05201597013.50 ppb
2012-11-052016000110.7 ppb
2013-02-11210158012.50 ppb
2013-02-11210160012.90 ppb
2013-02-11210161012.50 ppb
2013-02-11210162013.00 ppb
2013-02-11210167012.50 ppb
2013-02-11210168012.90 ppb
2013-02-11210169012.70 ppb
2013-02-11210171013.10 ppb
2013-02-11210172013.30 ppb
2013-02-11210177012.20 ppb
2013-02-112101780113.5 ppb
2013-02-112101790115.0 ppb
2013-02-112101800114.1 ppb
2013-02-112101900113.1 ppb
2013-02-11210191016.50 ppb
2013-02-11210192015.00 ppb
2013-02-11210194012.30 ppb
2013-02-11210196011.30 ppb
2013-02-11210197015.30 ppb
2013-02-1121020601ND
2013-02-112102080112.5 ppb
2013-05-22217968014.80 ppb
2013-05-22217969016.20 ppb
2013-05-22217972018.20 ppb
2013-05-22217973018.00 ppb
2013-05-22217978019.00 ppb
2013-05-22217979014.10 ppb
2013-05-22217980016.80 ppb
2013-05-22217982013.20 ppb
2013-05-22217983013.40 ppb
2013-05-22217988016.60 ppb
2013-05-22217989010.600 ppb
2013-05-22217990010.700 ppb
2013-05-22217991010.700 ppb
2013-05-22218001010.700 ppb
2013-05-22218002011.80 ppb
2013-05-22218003012.30 ppb
2013-05-22218005011.80 ppb
2013-05-22218007011.70 ppb
2013-05-22218008011.80 ppb
2013-05-22218018010.900 ppb
2013-05-22218020011.10 ppb
2013-08-07231703019.20 ppb
2013-08-07231704018.90 ppb
2013-08-072317060110.1 ppb
2013-08-072317070111.5 ppb
2013-08-072317120113.8 ppb
2013-08-07231713018.80 ppb
2013-08-07231714019.40 ppb
2013-08-07231716018.60 ppb
2013-08-07231717019.00 ppb
2013-08-07231722017.60 ppb
2013-08-07231723011.60 ppb
2013-08-07231724011.70 ppb
2013-08-07231725011.70 ppb
2013-08-07231735011.30 ppb
2013-08-07231736010.900 ppb
2013-08-07231737010.800 ppb
2013-08-07231739011.40 ppb
2013-08-07231741011.20 ppb
2013-08-07231742011.000 ppb
2013-08-07231751011.40 ppb
2013-08-07231753010.900 ppb
2013-11-06239309013.70 ppb
2013-11-06239310013.50 ppb
2013-11-06239313014.30 ppb
2013-11-06239314014.60 ppb
2013-11-06239319013.40 ppb
2013-11-06239320013.50 ppb
2013-11-06239321012.70 ppb
2013-11-06239323011.50 ppb
2013-11-0623932401ND
2013-11-06239329012.60 ppb
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
2014-02-19246906014.70 ppb
2014-02-19246907014.50 ppb
2014-02-19246909014.90 ppb
2014-02-19246910014.50 ppb
2014-02-19246914012.80 ppb
2014-02-19246915012.70 ppb
2014-02-19246916013.30 ppb
2014-02-19246917016.90 ppb
2014-02-192469210113.1 ppb
2014-02-192469220114.0 ppb
2014-02-192469230114.7 ppb
2014-02-192469310112.1 ppb
2014-02-192469320112.5 ppb
2014-02-192469330112.9 ppb
2014-02-192469340111.7 ppb
2014-02-192469350112.3 ppb
2014-05-14255916018.40 ppb
2014-05-14255917017.30 ppb
2014-05-14255919017.80 ppb
2014-05-14255920015.30 ppb
2014-05-14255924014.50 ppb
2014-05-14255925014.40 ppb
2014-05-14255926012.70 ppb
2014-05-1425592701ND
2014-05-14255931010.500 ppb
2014-05-14255932010.600 ppb
2014-05-14255933010.500 ppb
2014-05-14255941010.500 ppb
2014-05-14255942010.500 ppb
2014-05-14255943010.600 ppb
2014-05-14255944010.700 ppb
2014-05-14255945010.700 ppb
2014-07-23AC300689.76 ppb
2014-07-23AC3006910.1 ppb
2014-07-23AC300701.48 ppb
2014-07-23AC300711.70 ppb
2014-07-23AC300728.99 ppb
2014-08-192654730111.0 ppb
2014-08-192654740112.6 ppb
2014-08-192654760112.4 ppb
2014-08-192654770112.0 ppb
2014-08-19265481018.20 ppb
2014-08-19265482019.50 ppb
2014-08-19265483018.20 ppb
2014-08-19265484019.80 ppb
2014-08-19265488011.60 ppb
2014-08-19265489011.80 ppb
2014-08-19265490011.70 ppb
2014-08-19265498011.000 ppb
2014-08-19265499011.000 ppb
2014-08-19265500011.000 ppb
2014-08-19265501011.000 ppb
2014-08-19265502010.900 ppb
2014-08-19AC3093410.8 ppb
2014-08-19AC309351.48 ppb
2014-08-19AC309361.79 ppb
2014-08-19AC3093710.8 ppb
2014-08-19AC3093810.7 ppb
2014-08-19AC309391.36 ppb
2014-08-19AC309409.56 ppb
2014-08-19AC309410.980 ppb
2014-08-19AC309427.18 ppb
2014-08-19AC309430.790 ppb
2014-08-19AC309448.99 ppb
2014-08-19AC309458.50 ppb
2014-08-19AC309460.940 ppb
2014-08-19AC309477.36 ppb
2014-08-19AC309480.760 ppb
2014-08-19AC309490.880 ppb
2014-11-06273798017.10 ppb
2014-11-06273799017.10 ppb
2014-11-06273801017.20 ppb
2014-11-06273802016.80 ppb
2014-11-06273806016.90 ppb
2014-11-06273807016.60 ppb
2014-11-06273808013.70 ppb
2014-11-06273809018.00 ppb
2014-11-06273813010.600 ppb
2014-11-06273814011.40 ppb
2014-11-06273815011.20 ppb
2014-11-0627382301ND
2014-11-0627382401ND
2014-11-0627382501ND
2014-11-0627382601ND
2014-11-0627382701ND
2015-02-12281529012.80 ppb
2015-02-12281533013.10 ppb
2015-02-12281538011.80 ppb
2015-02-12281544018.10 ppb
2015-02-12281558014.60 ppb
2015-02-12281530012.70 ppb
2015-02-12281532013.60 ppb
2015-02-12281537011.60 ppb
2015-02-12281539011.50 ppb
2015-02-12281540012.20 ppb
2015-02-12281545019.40 ppb
2015-02-12281546018.80 ppb
2015-02-12281554017.30 ppb
2015-02-12281555018.00 ppb
2015-02-12281556014.50 ppb
2015-02-12281557014.90 ppb
2015-05-12288842016.60 ppb
2015-05-12288845018.50 ppb
2015-05-12288850014.00 ppb
2015-05-12288851012.00 ppb
2015-05-12288859010.800 ppb
2015-05-12288870010.600 ppb
2015-05-12288871010.800 ppb
2015-05-12288872011.30 ppb
2015-05-12288841015.40 ppb
2015-05-12288844015.30 ppb
2015-05-12288852011.50 ppb
2015-05-12288853010.600 ppb
2015-05-12288858010.600 ppb
2015-05-12288860010.700 ppb
2015-05-12288869010.600 ppb
2015-05-12288873010.800 ppb
2015-08-25298009015.20 ppb
2015-08-25298012017.60 ppb
2015-08-25298013017.10 ppb
2015-08-25298018017.70 ppb
2015-08-25298019016.30 ppb
2015-08-25298020014.90 ppb
2015-08-25298026010.800 ppb
2015-08-25298027010.700 ppb
2015-08-25298028010.700 ppb
2015-08-25298038011.000 ppb
2015-08-25298040010.600 ppb
2015-08-25298010017.40 ppb
2015-08-25298021014.10 ppb
2015-08-25298037011.000 ppb
2015-08-25298039010.900 ppb
2015-08-25298041010.900 ppb
2015-11-12306469015.00 ppb
2015-11-12306470015.60 ppb
2015-11-12306475015.40 ppb
2015-11-123064830111.7 ppb
2015-11-123064840112.3 ppb
2015-11-123064850112.0 ppb
2015-11-12306494014.80 ppb
2015-11-12306495016.80 ppb
2015-11-12306496012.90 ppb
2015-11-12306497014.20 ppb
2015-11-12306476014.00 ppb
2015-11-12306477014.00 ppb
2015-11-12306478012.20 ppb
2015-11-12306498012.60 ppb
2015-11-12306466014.60 ppb
2015-11-12306467014.60 ppb
2016-02-16312629012.80 ppb
2016-02-16312635012.50 ppb
2016-02-16312636012.10 ppb
2016-02-16312637013.90 ppb
2016-02-16312657010.800 ppb
2016-02-16312625012.50 ppb
2016-02-16312626013.00 ppb
2016-02-16312628013.20 ppb
2016-02-16312634012.90 ppb
2016-02-163126420111.6 ppb
2016-02-16312653011.70 ppb
2016-02-16312654013.20 ppb
2016-02-16312655011.10 ppb
2016-02-16312656011.90 ppb
2016-02-253158060112.0 ppb
2016-02-253158070112.1 ppb
2016-05-17319637013.60 ppb
2016-05-17319642012.60 ppb
2016-05-17319643013.80 ppb
2016-05-17319652010.700 ppb
2016-05-17319662010.500 ppb
2016-05-17319665010.600 ppb
2016-05-17319633013.50 ppb
2016-05-17319634013.80 ppb
2016-05-17319636013.20 ppb
2016-05-17319644012.70 ppb
2016-05-17319645010.900 ppb
2016-05-17319650010.800 ppb
2016-05-17319651010.600 ppb
2016-05-17319661010.500 ppb
2016-05-17319663010.600 ppb
2016-05-17319664010.500 ppb
2016-08-16330167014.30 ppb
2016-08-16330170016.10 ppb
2016-08-16330171016.20 ppb
2016-08-16330176014.30 ppb
2016-08-16330177013.10 ppb
2016-08-16330179011.10 ppb
2016-08-16330185011.000 ppb
2016-08-16330186011.20 ppb
2016-08-16330195011.000 ppb
2016-08-16330198011.50 ppb
2016-08-16330199011.60 ppb
2016-08-16330168017.20 ppb
2016-08-16330178013.00 ppb
2016-08-16330184011.10 ppb
2016-08-16330196011.10 ppb
2016-08-16330197011.50 ppb
2016-11-10337031016.10 ppb
2016-11-10337032017.80 ppb
2016-11-10337040014.40 ppb
2016-11-10337049011.30 ppb
2016-11-10337060012.90 ppb
2016-11-10337063011.40 ppb
2016-11-10337034017.80 ppb
2016-11-10337035016.00 ppb
2016-11-10337041015.10 ppb
2016-11-10337042013.50 ppb
2016-11-10337043012.60 ppb
2016-11-10337048011.30 ppb
2016-11-10337050010.700 ppb
2016-11-10337059014.10 ppb
2016-11-10337061018.50 ppb
2016-11-10337062013.80 ppb
2017-02-02345672013.20 ppb
2017-02-02345673013.10 ppb
2017-02-023456780111.0 ppb
2017-02-02345691017.70 ppb
2017-02-02345692018.00 ppb
2017-02-02345693017.70 ppb
2017-02-023456790110.9 ppb
2017-02-02345689019.50 ppb
2017-02-023456900111.1 ppb
2017-02-02345665013.20 ppb
2017-02-02345670012.80 ppb
2017-02-02345671013.40 ppb
2017-02-02345661012.90 ppb
2017-02-02345662013.30 ppb
2017-02-02345664013.10 ppb
2017-02-16349543011.30 ppb
2017-05-25354028014.80 ppb
2017-05-25354033015.80 ppb
2017-05-25354034015.30 ppb
2017-05-25354036010.600 ppb
2017-05-2535404101ND
2017-05-2535405301ND
2017-05-2535405401ND
2017-05-25354058010.600 ppb
2017-05-25354024015.00 ppb
2017-05-25354025012.90 ppb
2017-05-25354027015.00 ppb
2017-05-25354035014.70 ppb
2017-05-25354042010.600 ppb
2017-05-25354043010.500 ppb
2017-05-2535405501ND
2017-05-2535405601ND
2017-08-17365723017.90 ppb
2017-08-17365725017.50 ppb
2017-08-17365726017.90 ppb
2017-08-17365731014.90 ppb
2017-08-17365733012.80 ppb
2017-08-17365737010.600 ppb
2017-08-1736573801ND
2017-08-1736574801ND
2017-08-17365722016.30 ppb
2017-08-17365730017.70 ppb
2017-08-17365732015.00 ppb
2017-08-17365739010.700 ppb
2017-08-1736574701ND
2017-08-17365749010.600 ppb
2017-08-1736575001ND
2017-08-1736575101ND
2017-11-09376608015.90 ppb
2017-11-09376609015.60 ppb
2017-11-09376614014.10 ppb
2017-11-09376616013.00 ppb
2017-11-09376621014.00 ppb
2017-11-09376622010.700 ppb
2017-11-09376632011.000 ppb
2017-11-09376605014.60 ppb
2017-11-09376606015.50 ppb
2017-11-09376613014.20 ppb
2017-11-09376615013.30 ppb
2017-11-093766200113.4 ppb
2017-11-09376630011.40 ppb
2017-11-09376631011.90 ppb
2017-11-09376633011.000 ppb
2017-11-0937663401ND