Menu

EWG's Tap Water Database — 2021 UPDATE

Donate

Dibromochloromethane

Niles City PWS

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.

MORE ABOUT THIS CONTAMINANT

 

101

Samples

0

Samples exceeding legal limit (MCL)

59

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
2014ND160ND
20151.57 ppb16160.770 ppb - 2.29 ppb
20162.26 ppb16160.790 ppb - 4.37 ppb
20170.966 ppb1610ND - 2.66 ppb
20180.563 ppb218ND - 2.30 ppb
20190.533 ppb169ND - 3.04 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

Date Lab ID Result
2014-01-0514010585ND
2014-01-0514010586ND
2014-01-0514010587ND
2014-01-0514010588ND
2014-04-0714041626ND
2014-04-0714041627ND
2014-04-0714041628ND
2014-04-0714041629ND
2014-07-0114070507ND
2014-07-0114070508ND
2014-07-0114070509ND
2014-07-0114070510ND
2014-10-0714101054ND
2014-10-0714101055ND
2014-10-0714101056ND
2014-10-0714101057ND
2015-01-06150104411.04 ppb
2015-01-06150104421.47 ppb
2015-01-06150104431.54 ppb
2015-01-06150104441.38 ppb
2015-04-06150411921.23 ppb
2015-04-06150411931.94 ppb
2015-04-06150411941.14 ppb
2015-04-06150411951.40 ppb
2015-07-07150712291.95 ppb
2015-07-07150712302.29 ppb
2015-07-07150712311.92 ppb
2015-07-07150712322.21 ppb
2015-10-06151007061.41 ppb
2015-10-06151007071.24 ppb
2015-10-06151007082.18 ppb
2015-10-06151007090.770 ppb
2016-01-06160108721.03 ppb
2016-01-06160108731.05 ppb
2016-01-06160108741.03 ppb
2016-01-06160108751.12 ppb
2016-04-05160405580.790 ppb
2016-04-05160405591.68 ppb
2016-04-05160405602.98 ppb
2016-04-05160405612.39 ppb
2016-07-06160703442.12 ppb
2016-07-06160703451.83 ppb
2016-07-06160703461.80 ppb
2016-07-06160703471.91 ppb
2016-10-04161006613.99 ppb
2016-10-04161006623.77 ppb
2016-10-04161006634.37 ppb
2016-10-04161006654.35 ppb
2017-01-04170103362.14 ppb
2017-01-04170103372.66 ppb
2017-01-04170103382.65 ppb
2017-01-04170103392.33 ppb
2017-04-04170403831.21 ppb
2017-04-04170403841.03 ppb
2017-04-04170403851.16 ppb
2017-04-04170403871.18 ppb
2017-07-0517070614ND
2017-07-0517070615ND
2017-07-0517070616ND
2017-07-0517070617ND
2017-10-03171005250.570 ppb
2017-10-0317100526ND
2017-10-0317100527ND
2017-10-03171005280.520 ppb
2018-01-03180102231.22 ppb
2018-01-0318010224ND
2018-01-03180102251.10 ppb
2018-01-03180102261.14 ppb
2018-04-0318040349ND
2018-04-0318040350ND
2018-04-0318040351ND
2018-04-0318040352ND
2018-06-0518060583ND
2018-06-0518060585ND
2018-06-0518060586ND
2018-06-0518060587ND
2018-07-0618071102ND
2018-07-0618071104ND
2018-07-0618071105ND
2018-07-0618071106ND
2018-10-02181007232.04 ppb
2018-10-02181007190.610 ppb
2018-10-02181007201.38 ppb
2018-10-02181007212.30 ppb
2018-10-02181007222.03 ppb
2019-01-04190110490.640 ppb
2019-01-04190110500.590 ppb
2019-01-0419011051ND
2019-01-0419011052ND
2019-04-0219041009ND
2019-04-02190410100.500 ppb
2019-04-0219041011ND
2019-04-0219041012ND
2019-07-0119070863ND
2019-07-01190708643.04 ppb
2019-07-01190708650.520 ppb
2019-07-0119070866ND
2019-10-01191004770.750 ppb
2019-10-01191004790.550 ppb
2019-10-01191004811.000 ppb
2019-10-01191004830.940 ppb