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EWG's Tap Water Database — 2021 UPDATE

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Bromochloroacetic acid

St. Charles

Bromochloroacetic acid is formed when chlorine or other disinfectants are used to treat drinking water. Bromochloroacetic acid and other disinfection byproducts increase the risk of cancer and may cause problems during pregnancy.

MORE ABOUT THIS CONTAMINANT

 

96

Samples

0

Samples exceeding legal limit (MCL)

55

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
20142.77 ppb1615ND - 5.34 ppb
20152.28 ppb1615ND - 4.28 ppb
20161.49 ppb1611ND - 4.43 ppb
20171.39 ppb1610ND - 2.66 ppb
2018ND160ND
20190.560 ppb164ND - 2.42 ppb

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.02 ppb

The EWG Health Guideline of 0.02 ppb for bromochloroacetic acid was defined in a peer-reviewed scientific study by EWG and represents a on-in-a-million lifetime cancer risk level. This health guideline protects against cancer.

ppb = parts per billion

All test results

Date Lab ID Result
2014-02-24AC182302.82 ppb
2014-02-24AC182312.11 ppb
2014-02-24AC182322.78 ppb
2014-02-24AC18233ND
2014-05-28AC232383.84 ppb
2014-05-28AC232393.91 ppb
2014-05-28AC232403.06 ppb
2014-05-28AC232413.43 ppb
2014-09-15AC334635.34 ppb
2014-09-15AC334602.89 ppb
2014-09-15AC334612.09 ppb
2014-09-15AC334623.21 ppb
2014-11-25AC382891.76 ppb
2014-11-25AC382882.16 ppb
2014-11-25AC382872.12 ppb
2014-11-25AC382862.72 ppb
2015-02-24AC420132.11 ppb
2015-02-24AC420152.59 ppb
2015-02-24AC420141.58 ppb
2015-02-24AC420162.57 ppb
2015-05-27AC465782.98 ppb
2015-05-27AC465772.87 ppb
2015-05-27AC465761.66 ppb
2015-05-27AC465752.70 ppb
2015-09-02AC575581.58 ppb
2015-09-02AC575574.28 ppb
2015-09-02AC575602.20 ppb
2015-09-02AC575593.45 ppb
2015-11-30AC628442.00 ppb
2015-11-30AC628431.57 ppb
2015-11-30AC62842ND
2015-11-30AC628412.31 ppb
2016-03-02AC663871.70 ppb
2016-03-02AC663891.76 ppb
2016-03-02AC66388ND
2016-03-02AC663901.64 ppb
2016-06-07AC720832.49 ppb
2016-06-07AC720812.33 ppb
2016-06-07AC720842.40 ppb
2016-06-07AC72082ND
2016-08-25AC817282.63 ppb
2016-08-25AC817271.69 ppb
2016-08-25AC81729ND
2016-08-25AC817264.43 ppb
2016-11-07AC869821.44 ppb
2016-11-07AC86981ND
2016-11-07AC869801.40 ppb
2016-11-07AC86983ND
2017-02-24AC908302.66 ppb
2017-02-24AC908322.59 ppb
2017-02-24AC908331.32 ppb
2017-02-24AC90831ND
2017-05-25AC958082.04 ppb
2017-05-25AC958072.27 ppb
2017-05-25AC958092.16 ppb
2017-05-25AC95810ND
2017-09-07AD03561ND
2017-09-07AD03563ND
2017-09-07AD035602.37 ppb
2017-09-07AD035622.27 ppb
2017-11-27AD095232.31 ppb
2017-11-27AD095202.20 ppb
2017-11-27AD09522ND
2017-11-27AD09521ND
2018-03-05AD14307ND
2018-03-05AD14306ND
2018-03-05AD14309ND
2018-03-05AD14308ND
2018-06-04AD20540ND
2018-06-04AD20537ND
2018-06-04AD20538ND
2018-06-04AD20539ND
2018-08-28AD31349ND
2018-08-28AD31352ND
2018-08-28AD31351ND
2018-08-28AD31350ND
2018-12-04AD35748ND
2018-12-04AD35747ND
2018-12-04AD35749ND
2018-12-04AD35750ND
2019-02-25AD394172.08 ppb
2019-02-25AD39416ND
2019-02-25AD39415ND
2019-02-25AD394182.05 ppb
2019-05-21AD474952.41 ppb
2019-05-21AD47496ND
2019-05-21AD47494ND
2019-05-21AD474932.42 ppb
2019-09-05AD54084ND
2019-09-05AD54085ND
2019-09-05AD54086ND
2019-09-05AD54087ND
2019-12-18AD58129ND
2019-12-18AD58130ND
2019-12-18AD58131ND
2019-12-18AD58132ND