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EWG's Tap Water Database — 2021 UPDATE

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Dibromochloromethane

Anson County Water System

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

 

104

Samples

0

Samples exceeding legal limit (MCL)

63

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.763 ppb167ND - 2.10 ppb
20151.63 ppb1613ND - 3.10 ppb
20161.92 ppb1615ND - 4.10 ppb
20171.03 ppb1612ND - 1.50 ppb
20180.221 ppb244ND - 1.40 ppb
20191.02 ppb1612ND - 1.50 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
2014-03-2692195050001DISND
2014-03-2692195050002DISND
2014-03-2692195050003DISND
2014-03-2692195050004DISND
2014-05-2192202517001DISND
2014-05-2192202517002DISND
2014-05-2192202517003DISND
2014-05-2192202517004DISND
2014-08-2292214563001TTH1.90 ppb
2014-08-2292214563002TTH1.50 ppb
2014-08-2292214563003TTH1.50 ppb
2014-08-2292214563004TTH1.70 ppb
2014-11-1892226519001TTH1.80 ppb
2014-11-1892226519002TTH1.70 ppb
2014-11-1892226519003TTH2.10 ppb
2014-11-1892226519004TTHND
2015-02-181.10 ppb
2015-02-181.000 ppb
2015-02-18ND
2015-02-181.50 ppb
2015-05-202.70 ppb
2015-05-203.00 ppb
2015-05-203.10 ppb
2015-05-202.90 ppb
2015-08-192.00 ppb
2015-08-191.80 ppb
2015-08-192.00 ppb
2015-08-192.50 ppb
2015-11-181.20 ppb
2015-11-181.20 ppb
2015-11-18ND
2015-11-18ND
2016-02-1792287116001TTH3.20 ppb
2016-02-1792287116002TTH3.20 ppb
2016-02-1792287116003TTH3.20 ppb
2016-02-1792287116004TTH3.20 ppb
2016-05-1992298434001TTH4.10 ppb
2016-05-1992298434002TTHND
2016-05-1992298434003TTH1.10 ppb
2016-05-1992298434004TTH1.20 ppb
2016-08-1792309424001TTH1.60 ppb
2016-08-1792309424002TTH1.70 ppb
2016-08-1792309424003TTH1.80 ppb
2016-08-1792309424004TTH1.60 ppb
2016-11-1692320211001TTH1.30 ppb
2016-11-1692320211002TTH1.30 ppb
2016-11-1692320211003TTH1.20 ppb
2016-11-1692320211004TTH1.000 ppb
2017-02-1592330355001TTH1.40 ppb
2017-02-1592330355002TTH1.40 ppb
2017-02-1592330355003TTH1.40 ppb
2017-02-1592330355004TTH1.40 ppb
2017-05-1292341157001TTHND
2017-05-1292341157002TTHND
2017-05-1292341157003TTHND
2017-05-1292341157004TTHND
2017-08-1692352111001TTH1.40 ppb
2017-08-1692352111002TTH1.50 ppb
2017-08-1692352111005TTH1.40 ppb
2017-08-1792352111004TTH1.40 ppb
2017-11-1592363800001TTH1.20 ppb
2017-11-1592363800002TTH1.40 ppb
2017-11-1592363800003TTH1.30 ppb
2017-11-1592363800004TTH1.20 ppb
2018-02-1492373624005TTH ND
2018-02-1492373624006TTH ND
2018-02-1492373624007TTH ND
2018-02-1492373624008TTH ND
2018-05-0992384772001TTH ND
2018-05-0992384772002TTH ND
2018-05-0992384772003TTH ND
2018-05-0992384772004TTH ND
2018-08-0992395748001TTH 1.30 ppb
2018-08-0992395748002TTH 1.40 ppb
2018-08-0992395748003TTH 1.40 ppb
2018-08-0992395748004TTH 1.20 ppb
2018-11-282424-18 ND
2018-11-282425-18 ND
2018-11-282426-18 ND
2018-11-282427-18 ND
2018-11-2892409452002 ND
2018-11-2892409452002_3770ND
2018-11-2892409452003 ND
2018-11-2892409452003_3770ND
2018-11-2892409452004 ND
2018-11-2892409452004_3770ND
2018-11-2892409452005 ND
2018-11-2892409452005_3770ND
2019-02-1292418267001_3770ND
2019-02-1292418267002_3770ND
2019-02-1292418267003_3770ND
2019-02-1292418267004_3770ND
2019-05-2292430651001_37701.10 ppb
2019-05-2292430651002_37701.40 ppb
2019-05-2292430651003_37701.10 ppb
2019-05-2292430651004_37701.30 ppb
2019-08-1492442133002_37701.40 ppb
2019-08-1492442133004_37701.40 ppb
2019-08-2092442133001_37701.40 ppb
2019-08-2692442996001_37701.50 ppb
2019-11-1992455540001_37701.50 ppb
2019-11-1992455540002_37701.50 ppb
2019-11-1992455540004_37701.40 ppb
2019-12-0492457286001_37701.30 ppb