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EWG's Tap Water Database — 2021 UPDATE

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Dibromochloromethane

Town of Culpeper

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

 

126

Samples

0

Samples exceeding legal limit (MCL)

78

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.415 ppb2010ND - 1.000 ppb
20150.457 ppb2111ND - 1.20 ppb
20160.667 ppb2113ND - 1.90 ppb
20171.03 ppb1815ND - 3.30 ppb
20181.12 ppb2414ND - 4.90 ppb
20191.35 ppb2215ND - 3.80 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
2014-01-22E131202587ND
2014-01-22E131202602ND
2014-01-22E131202648ND
2014-01-22E131202595ND
2014-02-12E131102768ND
2014-02-12E131102720ND
2014-02-12E131102735ND
2014-04-15E1403037830.600 ppb
2014-04-15E140303787ND
2014-04-15E140303784ND
2014-04-15E140303774ND
2014-07-15E1406087750.900 ppb
2014-07-15E1406088060.900 ppb
2014-07-15E1406087870.800 ppb
2014-07-15E1406088021.000 ppb
2014-07-15E1406088310.700 ppb
2014-10-23E1409008471.000 ppb
2014-10-23E1409008550.900 ppb
2014-10-23E1409008480.900 ppb
2014-10-23E1409008540.600 ppb
2015-01-20VA010-DCLSND
2015-01-22VA010-DCLSND
2015-01-22VA010-DCLSND
2015-01-22VA010-DCLSND
2015-01-22VA010-DCLSND
2015-04-02VA010-DCLSND
2015-04-21VA010-DCLS0.700 ppb
2015-04-21VA010-DCLS0.700 ppb
2015-04-21VA010-DCLS0.500 ppb
2015-04-21VA010-DCLSND
2015-07-01VA010-DCLS0.600 ppb
2015-07-21VA010-DCLS1.20 ppb
2015-07-21VA010-DCLS1.10 ppb
2015-07-21VA010-DCLS1.000 ppb
2015-07-21VA010-DCLS1.000 ppb
2015-09-11VA010-DCLSND
2015-10-13VA010-DCLSND
2015-10-20VA010-DCLS1.000 ppb
2015-10-20VA010-DCLS0.900 ppb
2015-10-20VA010-DCLS0.900 ppb
2015-10-20VA010-DCLSND
2016-01-04E151204937ND
2016-01-19E1512048961.000 ppb
2016-01-19E1512048970.900 ppb
2016-01-19E151204894ND
2016-01-19E151204898ND
2016-04-19E160400309ND
2016-04-20E1604003121.50 ppb
2016-04-20E1604003141.40 ppb
2016-04-20E1604003101.000 ppb
2016-04-20E160400315ND
2016-07-18E1607001971.90 ppb
2016-07-18E1607002201.50 ppb
2016-07-18E1607002051.000 ppb
2016-07-18E1607002100.800 ppb
2016-07-18E1607001960.600 ppb
2016-07-18E160700208ND
2016-10-19E1608056161.000 ppb
2016-10-19E1608056320.800 ppb
2016-10-19E1608056150.600 ppb
2016-10-19E160805617ND
2016-10-31E161003712ND
2017-01-17E1612011651.40 ppb
2017-01-17E1612011641.30 ppb
2017-01-17E1612011800.700 ppb
2017-01-17E161201179ND
2017-01-17E161201174ND
2017-04-17E1702041371.70 ppb
2017-04-17E1702041081.30 ppb
2017-04-17E1702041350.700 ppb
2017-04-17E1702041380.600 ppb
2017-07-17E1706024071.80 ppb
2017-07-17E1706023991.50 ppb
2017-07-17E1706024120.700 ppb
2017-07-17E1706024030.600 ppb
2017-07-17E170602402ND
2017-10-16E1708059133.30 ppb
2017-10-16E1708059151.40 ppb
2017-10-16E1708058960.800 ppb
2017-10-16E1708059140.700 ppb
2018-01-18E1712024721.80 ppb
2018-01-18E171202474ND
2018-01-18E171202476ND
2018-01-18E1712024781.90 ppb
2018-01-22E171202488ND
2018-04-16E180305027ND
2018-04-16E1803050291.70 ppb
2018-04-16E1803050360.600 ppb
2018-04-16E1803050370.700 ppb
2018-04-16E1803050381.40 ppb
2018-05-16E180305052ND
2018-07-17E1806028253.70 ppb
2018-07-17E180602831ND
2018-07-17E1806028340.800 ppb
2018-07-17E1806028350.900 ppb
2018-07-17E1806028362.80 ppb
2018-07-17E180602847ND
2018-07-17E180602849ND
2018-10-16E180805338ND
2018-10-16E180805343ND
2018-10-16E1808053493.50 ppb
2018-10-16E1808053531.20 ppb
2018-10-16E1808053540.900 ppb
2018-10-16E1808053594.90 ppb
2019-01-15E181203748ND
2019-01-15E181203753ND
2019-01-15E1812037651.90 ppb
2019-01-15E181203767ND
2019-01-15E181203812ND
2019-01-15E1812038141.70 ppb
2019-04-16E1903065260.800 ppb
2019-04-16E1903065300.700 ppb
2019-04-16E1903065391.90 ppb
2019-04-16E190306540ND
2019-04-16E1903065552.00 ppb
2019-04-16E190306559ND
2019-07-16E1906041643.60 ppb
2019-07-16E1906041652.20 ppb
2019-07-16E1906041691.50 ppb
2019-07-16E1906041861.30 ppb
2019-07-16E1906041992.70 ppb
2019-10-15E1910015962.20 ppb
2019-10-15E1910015983.80 ppb
2019-10-15E1910016161.90 ppb
2019-10-15E1910016181.40 ppb
2019-11-04E181203744ND