EWG's Tap Water Database — 2021 UPDATE



Dewitt WDS - North

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.





Samples exceeding legal limit (MCL)


Samples exceeding
health guidelines

Testing results - average by year

YearAverage resultSamples takenDetectionsRange of results
201411.5 ppb16168.90 ppb - 14.0 ppb
201511.0 ppb16167.00 ppb - 16.0 ppb
201612.0 ppb16166.70 ppb - 16.0 ppb
201714.9 ppb121211.0 ppb - 21.0 ppb
201811.2 ppb16168.90 ppb - 14.0 ppb
201913.8 ppb161611.0 ppb - 16.0 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

Date Lab ID Result
2014-02-131Q2014 FLY RD13.0 ppb
2014-02-131Q2014 RUSSELL L9.40 ppb
2014-02-131Q2014 ALMONT DR9.80 ppb
2014-02-131Q2014 BADGELY R8.90 ppb
2014-05-132Q2014 FLY RD11.0 ppb
2014-05-132Q2014 BADGELY R11.0 ppb
2014-05-132Q2014 RUSSELL L13.0 ppb
2014-05-132Q2014 ALMONT DR13.0 ppb
2014-08-133Q2014 ALMONT DR14.0 ppb
2014-08-133Q2014 BADGELY R14.0 ppb
2014-08-133Q2014 RUSSELL L11.0 ppb
2014-08-133Q2014 FLY RD12.0 ppb
2014-11-134Q2014 RUSSELL L9.40 ppb
2014-11-134Q2014 FLY RD10.00 ppb
2014-11-134Q2014 BADGELY R11.0 ppb
2014-11-134Q2014 ALMONT DR13.0 ppb
2015-02-111Q2015 ALMONT DR7.40 ppb
2015-02-111Q2015 FLY RD7.00 ppb
2015-02-111Q2015 RUSSELL L7.80 ppb
2015-02-111Q2015 BADGELY R11.0 ppb
2015-05-142Q2015 RUSSELL L8.10 ppb
2015-05-142Q2015 FLY RD7.70 ppb
2015-05-142Q2015 ALMONT DR8.80 ppb
2015-05-142Q2015 BADGELY R9.20 ppb
2015-08-133Q2015 BADGELY R16.0 ppb
2015-08-133Q2015 ALMONT DR13.0 ppb
2015-08-133Q2015 RUSSELL L13.0 ppb
2015-08-133Q2015 FLY RD11.0 ppb
2015-11-094Q2015 RUSSELL L13.0 ppb
2015-11-094Q2015 ALMONT DR14.0 ppb
2015-11-094Q2015 FLY RD14.0 ppb
2015-11-094Q2015 BADGELY R15.0 ppb
2016-02-121Q2016 BADGELY R9.10 ppb
2016-02-121Q2016 FLY RD7.10 ppb
2016-02-121Q2016 ALMONT DR7.40 ppb
2016-02-121Q2016 RUSSELL L6.70 ppb
2016-05-172Q2016 FLY RD10.00 ppb
2016-05-172Q2016 ALMONT DR11.0 ppb
2016-05-172Q2016 BADGELY R12.0 ppb
2016-05-172Q2016 RUSSELL L12.0 ppb
2016-08-103Q2016 BADGELY R15.0 ppb
2016-08-103Q2016 RUSSELL L13.0 ppb
2016-08-103Q2016 ALMONT DR15.0 ppb
2016-08-103Q2016 FLY RD15.0 ppb
2016-11-084Q2016 BADGELY R15.0 ppb
2016-11-084Q2016 ALMONT DR14.0 ppb
2016-11-084Q2016 RUSSELL L16.0 ppb
2016-11-084Q2016 FLY RD14.0 ppb
2017-05-102Q2017 FLY RD14.0 ppb
2017-05-102Q2017 ALMONT DR14.0 ppb
2017-05-102Q2017 RUSSELL L14.0 ppb
2017-05-102Q2017 BADGELY R15.0 ppb
2017-08-093Q2017 ALMONT DR18.0 ppb
2017-08-093Q2017 RUSSELL L18.0 ppb
2017-08-093Q2017 BADGELY R21.0 ppb
2017-08-093Q2017 FLY RD19.0 ppb
2017-11-074Q2017 ALMONT DR12.0 ppb
2017-11-074Q2017 FLY RD11.0 ppb
2017-11-074Q2017 RUSSELL L11.0 ppb
2017-11-074Q2017 BADGELY R12.0 ppb
2018-02-151Q2018 BADGLEY R9.80 ppb
2018-02-151Q2018 RUSSELL L8.90 ppb
2018-02-151Q2018 FLY RD10.00 ppb
2018-02-151Q2018 ALMONT DR9.60 ppb
2018-05-102Q2018 ALMONT DR11.0 ppb
2018-05-102Q2018 FLY RD13.0 ppb
2018-05-102Q2018 BADGLEY R14.0 ppb
2018-05-102Q2018 RUSSELL L13.0 ppb
2018-08-143Q2018 BADGLEY R14.0 ppb
2018-08-143Q2018 RUSSELL L11.0 ppb
2018-08-143Q2018 ALMONT DR13.0 ppb
2018-08-143Q2018 FLY RD12.0 ppb
2018-11-074Q2018 ALMONT DR9.30 ppb
2018-11-074Q2018 RUSSELL L9.20 ppb
2018-11-074Q2018 BADGLEY R9.60 ppb
2018-11-074Q2018 FLY RD11.0 ppb
2019-02-141Q2019 BADGLEY R13.0 ppb
2019-02-141Q2019 FLY RD13.0 ppb
2019-02-141Q2019 ALMONT DR13.0 ppb
2019-02-141Q2019 RUSSELL L13.0 ppb
2019-05-102Q2019 FLY RD15.0 ppb
2019-05-102Q2019 BADGLEY R15.0 ppb
2019-05-102Q2019 ALMONT DR13.0 ppb
2019-05-102Q2019 RUSSELL L14.0 ppb
2019-08-133Q2019 ALMONT DR16.0 ppb
2019-08-133Q2019 RUSSELL L15.0 ppb
2019-08-133Q2019 FLY RD16.0 ppb
2019-08-133Q2019 BADGLEY R16.0 ppb
2019-11-064Q2019 RUSSELL L11.0 ppb
2019-11-064Q2019 BADGLEY R14.0 ppb
2019-11-064Q2019 ALMONT DR11.0 ppb
2019-11-064Q2019 FLY RD13.0 ppb