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EWG's Tap Water Database — 2021 UPDATE

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Dibromochloromethane

Town of Apex

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

 

139

Samples

0

Samples exceeding legal limit (MCL)

139

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20147.35 ppb16166.30 ppb - 8.70 ppb
20157.84 ppb16164.30 ppb - 12.0 ppb
20165.96 ppb16163.30 ppb - 8.50 ppb
201710.3 ppb20205.90 ppb - 14.0 ppb
201816.2 ppb32326.00 ppb - 25.0 ppb
20197.96 ppb39393.60 ppb - 15.0 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
2014-02-11921895390016.80 ppb
2014-02-11921895390036.50 ppb
2014-02-11921895390047.40 ppb
2014-02-11921895390057.60 ppb
2014-05-1492201240001DIS8.70 ppb
2014-05-1492201240002DIS7.00 ppb
2014-05-1492201240003DIS8.10 ppb
2014-05-1492201240004DIS7.80 ppb
2014-08-1492213447001TTH7.30 ppb
2014-08-1492213447002TTH7.30 ppb
2014-08-1492213447003TTH8.50 ppb
2014-08-1492213447004TTH7.60 ppb
2014-11-1292225241001TTH6.60 ppb
2014-11-1292225241002TTH7.30 ppb
2014-11-1292225241003TTH6.30 ppb
2014-11-1292225241004TTH6.80 ppb
2015-02-114.60 ppb
2015-02-114.30 ppb
2015-02-114.70 ppb
2015-02-114.40 ppb
2015-05-134.50 ppb
2015-05-134.50 ppb
2015-05-134.50 ppb
2015-05-135.00 ppb
2015-08-1412.0 ppb
2015-08-1411.0 ppb
2015-08-1411.0 ppb
2015-08-1412.0 ppb
2015-11-1211.1 ppb
2015-11-1211.2 ppb
2015-11-1212.0 ppb
2015-11-128.70 ppb
2016-02-1292286426001TTH3.80 ppb
2016-02-1292286426003TTH3.80 ppb
2016-02-1292286426004TTH3.50 ppb
2016-02-1292286426005TTH3.30 ppb
2016-05-1192297108001TTH6.30 ppb
2016-05-1192297108003TTH8.50 ppb
2016-05-1192297108004TTH8.10 ppb
2016-05-1192297108005TTH5.60 ppb
2016-08-1792309277001TTH6.90 ppb
2016-08-1792309277002TTH7.20 ppb
2016-08-1792309277003TTH7.30 ppb
2016-08-1792309277004TTH6.90 ppb
2016-11-1692319879001TTH6.00 ppb
2016-11-1692319879002TTH5.90 ppb
2016-11-1692319879004TTH6.00 ppb
2016-11-1692319879005TTH6.30 ppb
2017-02-1592329986001TTH6.70 ppb
2017-02-1592329986002TTH6.80 ppb
2017-02-1592329986004TTH5.90 ppb
2017-02-1592329986005TTH6.20 ppb
2017-05-1292340418001TTH8.00 ppb
2017-05-1292340418002TTH8.00 ppb
2017-05-1292340418004TTH8.30 ppb
2017-05-1292340418005TTH8.90 ppb
2017-08-1692351687001TTH11.0 ppb
2017-08-1692351687002TTH12.0 ppb
2017-08-1692351687003TTH11.0 ppb
2017-08-1692351687005TTH11.0 ppb
2017-11-1492363203001TTH13.0 ppb
2017-11-1492363203002TTH12.0 ppb
2017-11-1492363203003TTH13.0 ppb
2017-11-1492363203004TTH14.0 ppb
2017-11-1492363203005TTH13.0 ppb
2017-11-1492363203006TTH13.0 ppb
2017-11-1492363203007TTH14.0 ppb
2017-11-1492363203008TTH11.0 ppb
2018-02-1492373327001TTH 17.0 ppb
2018-02-1492373327002TTH 17.0 ppb
2018-02-1492373327003TTH 18.0 ppb
2018-02-1492373327004TTH 19.0 ppb
2018-02-1492373327005TTH 18.0 ppb
2018-02-1492373327006TTH 18.0 ppb
2018-02-1492373327007TTH 18.0 ppb
2018-02-1492373327008TTH 20.0 ppb
2018-05-1692384990001TTH 20.0 ppb
2018-05-1692384990002TTH 16.0 ppb
2018-05-1692384990003TTH 15.0 ppb
2018-05-1692384990004TTH 17.0 ppb
2018-05-1692384990005TTH 19.0 ppb
2018-05-1692384990006TTH 17.0 ppb
2018-05-1692384990007TTH 16.0 ppb
2018-05-1692384990008TTH 14.0 ppb
2018-08-1492395647001TTH 22.0 ppb
2018-08-1492395647002TTH 24.0 ppb
2018-08-1492395647003TTH 22.0 ppb
2018-08-1492395647004TTH 22.0 ppb
2018-08-1492395647005TTH 24.0 ppb
2018-08-1492395647006TTH 22.0 ppb
2018-08-1492395647007TTH 25.0 ppb
2018-08-1492395647008TTH 22.0 ppb
2018-11-1692407681001TTH 7.20 ppb
2018-11-1692407681002TTH 7.00 ppb
2018-11-1692407681003TTH 7.30 ppb
2018-11-1692407681004TTH 6.20 ppb
2018-11-1692407681005TTH 6.00 ppb
2018-11-1692407681006TTH 7.60 ppb
2018-11-1692407681007TTH 7.30 ppb
2018-11-1692407681008TTH 7.10 ppb
2019-02-1492417771001_37704.30 ppb
2019-02-1492417771001_37704.30 ppb
2019-02-1492417771002_37704.10 ppb
2019-02-1492417771002_37704.10 ppb
2019-02-1492417771004_37704.10 ppb
2019-02-1492417771004_37704.10 ppb
2019-02-1492417771005_37704.00 ppb
2019-02-1492417771005_37704.00 ppb
2019-02-1492417771006_37703.60 ppb
2019-02-1492417771006_37703.60 ppb
2019-02-1492417771007_37703.80 ppb
2019-02-1492417771007_37703.80 ppb
2019-02-1492417771008_37704.20 ppb
2019-02-1492417771009_37704.00 ppb
2019-02-1492417771009_37704.00 ppb
2019-05-1592429303001_37707.50 ppb
2019-05-1592429303002_37708.20 ppb
2019-05-1592429303003_37707.30 ppb
2019-05-1592429303004_37707.40 ppb
2019-05-1592429303005_37708.20 ppb
2019-05-1592429303006_37708.00 ppb
2019-05-1592429303007_37707.80 ppb
2019-05-1592429303008_37707.20 ppb
2019-09-2592446996002_377010.00 ppb
2019-09-2592446996003_377015.0 ppb
2019-09-2592446996004_377011.0 ppb
2019-09-2592446996005_377011.0 ppb
2019-09-2592446996006_377011.0 ppb
2019-09-2592446996007_377011.0 ppb
2019-09-2592446996008_377011.0 ppb
2019-09-2592446996009_377012.0 ppb
2019-11-1392453473001_377013.0 ppb
2019-11-1392453473002_377012.0 ppb
2019-11-1392453473003_377012.0 ppb
2019-11-1392453473004_377012.0 ppb
2019-11-1392453473005_377013.0 ppb
2019-11-1392453473006_377011.0 ppb
2019-11-1392453473007_377012.0 ppb
2019-11-1392453473008_377012.0 ppb