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EWG's Tap Water Database — 2021 UPDATE

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Dibromochloromethane

Town of Oak Island

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

 

96

Samples

0

Samples exceeding legal limit (MCL)

22

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.567 ppb166ND - 2.00 ppb
20152.69 ppb164ND - 15.0 ppb
20161.64 ppb168ND - 7.06 ppb
20170.0699 ppb161ND - 1.12 ppb
20180.313 ppb162ND - 4.00 ppb
20190.156 ppb161ND - 2.49 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
2014-03-1237729_14-07208ND
2014-03-1237729_14-07209ND
2014-03-1237729_14-07210ND
2014-03-1237729_14-07207ND
2014-06-1137729_14-16803ND
2014-06-1137729_14-16804ND
2014-06-1137729_14-16805ND
2014-06-1137729_14-16806ND
2014-09-1037729_14-274901.000 ppb
2014-09-1037729_14-274912.00 ppb
2014-09-1037729_14-27492ND
2014-09-1037729_14-274932.00 ppb
2014-12-1037729_14-373841.20 ppb
2014-12-1037729_14-373871.69 ppb
2014-12-1037729_14-373861.18 ppb
2014-12-1037729_14-37385ND
2015-03-11ND
2015-03-11ND
2015-03-11ND
2015-03-11ND
2015-06-17ND
2015-06-17ND
2015-06-17ND
2015-06-17ND
2015-09-1611.0 ppb
2015-09-1615.0 ppb
2015-09-168.45 ppb
2015-09-168.59 ppb
2015-12-09ND
2015-12-09ND
2015-12-09ND
2015-12-09ND
2016-03-1637729_16-08356ND
2016-03-1637729_16-08357ND
2016-03-1637729_16-08358ND
2016-03-1637729_16-08359ND
2016-06-1537729_16-19282ND
2016-06-1537729_16-19283ND
2016-06-1537729_16-19281ND
2016-06-1537729_16-19279ND
2016-09-1437729_16-319496.69 ppb
2016-09-1437729_16-319503.39 ppb
2016-09-1437729_16-319513.14 ppb
2016-09-1437729_16-319527.06 ppb
2016-12-1437729_16-434331.60 ppb
2016-12-1437729_16-434341.49 ppb
2016-12-1437729_16-434351.42 ppb
2016-12-1437729_16-434361.47 ppb
2017-03-0837729_17-07748ND
2017-03-0837729_17-077451.12 ppb
2017-03-0837729_17-07746ND
2017-03-0837729_17-07747ND
2017-06-1437729_17-20126ND
2017-06-1437729_17-20127ND
2017-06-1437729_17-20128ND
2017-06-1437729_17-20129ND
2017-09-1337729_17-33445ND
2017-09-1337729_17-33443ND
2017-09-1337729_17-33442ND
2017-09-1337729_17-33440ND
2017-12-1337729_17-47255ND
2017-12-1337729_17-47262ND
2017-12-1337729_17-47263ND
2017-12-1337729_17-47264ND
2018-01-2437729_18-02986 ND
2018-01-2437729_18-02985 ND
2018-01-2437729_18-02984 ND
2018-01-2437729_18-02978 ND
2018-06-1337729_18-23813 ND
2018-06-1337729_18-23810 1.000 ppb
2018-06-1337729_18-23811 ND
2018-06-1337729_18-23812 ND
2018-09-2637729_18-39767 4.00 ppb
2018-09-2637729_18-39766 ND
2018-09-2637729_18-39765 ND
2018-09-2637729_18-39763 ND
2018-12-1237729_18-51797 ND
2018-12-1237729_18-51800 ND
2018-12-1237729_18-51801 ND
2018-12-1237729_18-51802 ND
2019-03-1337729_19-10461 ND
2019-03-1337729_19-10463 ND
2019-03-1337729_19-10464 ND
2019-03-1337729_19-10465 ND
2019-06-1237729_19-24140 2.49 ppb
2019-06-1237729_19-24143 ND
2019-06-1237729_19-24142 ND
2019-06-1237729_19-24141 ND
2019-09-1837729_19-40518 ND
2019-09-1837729_19-40520 ND
2019-09-1837729_19-40519 ND
2019-09-1837729_19-40517 ND
2019-12-1137729_19-52844 ND
2019-12-1137729_19-52843 ND
2019-12-1137729_19-52842 ND
2019-12-1137729_19-52841 ND