EWG's Tap Water Database — 2021 UPDATE



Dewitt WDS - North

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.





Samples exceeding legal limit (MCL)


Samples exceeding
health guidelines

Testing results - average by year

YearAverage resultSamples takenDetectionsRange of results
20140.924 ppb1610ND - 2.50 ppb
20151.22 ppb1613ND - 2.70 ppb
20162.04 ppb16161.10 ppb - 3.70 ppb
20171.48 ppb12120.750 ppb - 2.10 ppb
20180.576 ppb1611ND - 1.30 ppb
20190.546 ppb1610ND - 1.30 ppb

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

Date Lab ID Result
2014-02-131Q2014 RUSSELL LND
2014-02-131Q2014 FLY RDND
2014-02-131Q2014 ALMONT DRND
2014-02-131Q2014 BADGELY RND
2014-05-132Q2014 FLY RDND
2014-05-132Q2014 RUSSELL L0.580 ppb
2014-05-132Q2014 ALMONT DRND
2014-05-132Q2014 BADGELY R0.560 ppb
2014-08-133Q2014 ALMONT DR0.960 ppb
2014-08-133Q2014 BADGELY R0.980 ppb
2014-08-133Q2014 FLY RD1.000 ppb
2014-08-133Q2014 RUSSELL L0.700 ppb
2014-11-134Q2014 RUSSELL L2.50 ppb
2014-11-134Q2014 FLY RD2.50 ppb
2014-11-134Q2014 BADGELY R2.50 ppb
2014-11-134Q2014 ALMONT DR2.50 ppb
2015-02-111Q2015 FLY RDND
2015-02-111Q2015 ALMONT DRND
2015-02-111Q2015 RUSSELL LND
2015-02-111Q2015 BADGELY R0.530 ppb
2015-05-142Q2015 RUSSELL L1.60 ppb
2015-05-142Q2015 FLY RD1.60 ppb
2015-05-142Q2015 ALMONT DR1.60 ppb
2015-05-142Q2015 BADGELY R1.60 ppb
2015-08-133Q2015 BADGELY R2.70 ppb
2015-08-133Q2015 ALMONT DR2.20 ppb
2015-08-133Q2015 RUSSELL L2.10 ppb
2015-08-133Q2015 FLY RD2.20 ppb
2015-11-094Q2015 RUSSELL L0.810 ppb
2015-11-094Q2015 BADGELY R0.860 ppb
2015-11-094Q2015 ALMONT DR0.800 ppb
2015-11-094Q2015 FLY RD0.850 ppb
2016-02-121Q2016 FLY RD1.40 ppb
2016-02-121Q2016 ALMONT DR1.30 ppb
2016-02-121Q2016 BADGELY R1.40 ppb
2016-02-121Q2016 RUSSELL L1.40 ppb
2016-05-172Q2016 ALMONT DR2.10 ppb
2016-05-172Q2016 BADGELY R2.20 ppb
2016-05-172Q2016 RUSSELL L2.00 ppb
2016-05-172Q2016 FLY RD2.10 ppb
2016-08-103Q2016 BADGELY R3.40 ppb
2016-08-103Q2016 ALMONT DR3.60 ppb
2016-08-103Q2016 RUSSELL L3.50 ppb
2016-08-103Q2016 FLY RD3.70 ppb
2016-11-084Q2016 FLY RD1.20 ppb
2016-11-084Q2016 ALMONT DR1.10 ppb
2016-11-084Q2016 RUSSELL L1.10 ppb
2016-11-084Q2016 BADGELY R1.20 ppb
2017-05-102Q2017 ALMONT DR1.90 ppb
2017-05-102Q2017 BADGELY R2.00 ppb
2017-05-102Q2017 RUSSELL L1.90 ppb
2017-05-102Q2017 FLY RD1.90 ppb
2017-08-093Q2017 ALMONT DR1.50 ppb
2017-08-093Q2017 BADGELY R2.10 ppb
2017-08-093Q2017 FLY RD1.80 ppb
2017-08-093Q2017 RUSSELL L1.30 ppb
2017-11-074Q2017 FLY RD0.750 ppb
2017-11-074Q2017 ALMONT DR0.790 ppb
2017-11-074Q2017 RUSSELL L0.910 ppb
2017-11-074Q2017 BADGELY R0.850 ppb
2018-02-151Q2018 RUSSELL LND
2018-02-151Q2018 BADGLEY RND
2018-02-151Q2018 ALMONT DRND
2018-02-151Q2018 FLY RDND
2018-05-102Q2018 RUSSELL L0.640 ppb
2018-05-102Q2018 ALMONT DRND
2018-05-102Q2018 FLY RD0.540 ppb
2018-05-102Q2018 BADGLEY R0.530 ppb
2018-08-143Q2018 BADGLEY R1.30 ppb
2018-08-143Q2018 ALMONT DR1.30 ppb
2018-08-143Q2018 FLY RD1.20 ppb
2018-08-143Q2018 RUSSELL L1.000 ppb
2018-11-074Q2018 FLY RD0.780 ppb
2018-11-074Q2018 ALMONT DR0.600 ppb
2018-11-074Q2018 RUSSELL L0.670 ppb
2018-11-074Q2018 BADGLEY R0.650 ppb
2019-02-141Q2019 BADGLEY RND
2019-02-141Q2019 ALMONT DRND
2019-02-141Q2019 FLY RDND
2019-02-141Q2019 RUSSELL LND
2019-05-102Q2019 ALMONT DRND
2019-05-102Q2019 RUSSELL L0.550 ppb
2019-05-102Q2019 BADGLEY RND
2019-05-102Q2019 FLY RD0.610 ppb
2019-08-133Q2019 BADGLEY R1.10 ppb
2019-08-133Q2019 FLY RD1.10 ppb
2019-08-133Q2019 RUSSELL L1.10 ppb
2019-08-133Q2019 ALMONT DR1.30 ppb
2019-11-064Q2019 FLY RD0.850 ppb
2019-11-064Q2019 BADGLEY R0.750 ppb
2019-11-064Q2019 RUSSELL L0.670 ppb
2019-11-064Q2019 ALMONT DR0.700 ppb