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EWG's Tap Water Database — 2021 UPDATE

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Dibromochloromethane

Hawthorne Water Department

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

 

152

Samples

0

Samples exceeding legal limit (MCL)

107

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
20143.30 ppb2618ND - 11.0 ppb
20153.38 ppb2520ND - 9.91 ppb
20163.11 ppb2516ND - 10.9 ppb
20174.03 ppb2617ND - 14.4 ppb
20184.30 ppb2519ND - 13.8 ppb
20193.64 ppb2517ND - 13.3 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
2014-01-0724925-3ND
2014-01-1425022-10.600 ppb
2014-02-1125411-40.810 ppb
2014-02-1125411-25.21 ppb
2014-02-1125411-13.21 ppb
2014-02-1125411-35.74 ppb
2014-04-0126079-10.740 ppb
2014-04-0126079-3ND
2014-05-1626758-43.34 ppb
2014-05-1626758-22.97 ppb
2014-05-1626758-15.69 ppb
2014-05-1626758-36.83 ppb
2014-07-0127554-1ND
2014-07-0127554-3ND
2014-08-1828383-4ND
2014-08-1828383-23.59 ppb
2014-08-1828383-18.12 ppb
2014-08-1828383-38.55 ppb
2014-10-0729298-1ND
2014-10-0729298-3ND
2014-10-0729298-60.770 ppb
2014-10-0729298-5ND
2014-11-1829948-41.33 ppb
2014-11-1829948-27.97 ppb
2014-11-1829948-19.30 ppb
2014-11-1829948-311.0 ppb
2015-01-0630628-11.67 ppb
2015-01-0630628-3ND
2015-02-1331246-41.12 ppb
2015-02-1331246-21.94 ppb
2015-02-1331246-13.31 ppb
2015-02-1331246-36.22 ppb
2015-04-07DWS117-12.82 ppb
2015-04-07DWS117-3ND
2015-05-12DWS499-41.17 ppb
2015-05-12DWS499-25.04 ppb
2015-05-12DWS499-16.47 ppb
2015-05-12DWS499-36.48 ppb
2015-07-07DWS1055-11.47 ppb
2015-07-07DWS1055-3ND
2015-08-11DWSC184-41.19 ppb
2015-08-11DWSC184-21.96 ppb
2015-08-11DWSC184-18.09 ppb
2015-08-11DWSC184-39.91 ppb
2015-10-06DWSC542-10.700 ppb
2015-10-06DWSC542-3ND
2015-10-06DWSC542-5ND
2015-11-13DWS1933-41.22 ppb
2015-11-13DWS1933-26.97 ppb
2015-11-13DWS1933-16.82 ppb
2015-11-13DWS1933-39.83 ppb
2016-01-04DWSC967-1ND
2016-01-04DWSC967-3ND
2016-02-16DWS2248-43.02 ppb
2016-02-16DWS2248-24.26 ppb
2016-02-16DWS2248-15.41 ppb
2016-02-16DWS2248-36.59 ppb
2016-04-04DWSC1374-1ND
2016-04-04DWSC1374-3ND
2016-05-13DWS2962-41.44 ppb
2016-05-13DWS2962-21.95 ppb
2016-05-13DWS2962-14.04 ppb
2016-05-13DWS2962-35.70 ppb
2016-07-05DWSC1763-1ND
2016-07-05DWSC1763-3ND
2016-08-12DWS3596-41.33 ppb
2016-08-12DWS3596-23.01 ppb
2016-08-12DWS3596-16.54 ppb
2016-08-12DWS3596-37.95 ppb
2016-10-04DWSC2209-1ND
2016-10-04DWSC2209-3ND
2016-10-04DWSC2209-5ND
2016-11-14DWS4210-40.680 ppb
2016-11-14DWS4210-28.57 ppb
2016-11-14DWS4210-16.39 ppb
2016-11-14DWS4210-310.9 ppb
2017-01-03DWSC2559-10.940 ppb
2017-01-03DWSC2559-3ND
2017-02-16DWS4803-41.23 ppb
2017-02-16DWS4803-35.04 ppb
2017-02-16DWS4803-25.24 ppb
2017-02-16DWS4803-17.69 ppb
2017-04-04DWSC2930-1ND
2017-04-04DWSC2930-3ND
2017-05-15DWS5474-41.94 ppb
2017-05-15DWS5474-38.66 ppb
2017-05-15DWS5474-29.05 ppb
2017-05-15DWS5474-114.4 ppb
2017-07-05DWSC3427-1ND
2017-07-05DWSC3427-3ND
2017-08-16DWS6216-41.23 ppb
2017-08-16DWS6216-22.22 ppb
2017-08-16DWS6216-18.34 ppb
2017-08-16DWS6216-310.9 ppb
2017-10-03DWSC4031-1ND
2017-10-03DWSC4031-3ND
2017-10-03DWSC4031-6ND
2017-10-03DWSC4031-5ND
2017-11-1470360760043.60 ppb
2017-11-1470360760026.20 ppb
2017-11-1470360760017.90 ppb
2017-11-14703607600310.2 ppb
2018-01-02DWSC4530-1ND
2018-01-02DWSC4530-3ND
2018-02-15DWS7852-41.32 ppb
2018-02-15DWS7852-23.52 ppb
2018-02-15DWS7852-16.19 ppb
2018-02-15DWS7852-36.85 ppb
2018-04-02DWSC5050-10.560 ppb
2018-04-02DWSC5050-3ND
2018-05-14DWS8658-43.61 ppb
2018-05-14DWS8658-28.74 ppb
2018-05-14DWS8658-17.54 ppb
2018-05-14DWS8658-312.9 ppb
2018-07-0218070327-010.600 ppb
2018-07-0218070327-03ND
2018-08-1623350380042.50 ppb
2018-08-1623350380023.20 ppb
2018-08-1623350380018.40 ppb
2018-08-16233503800313.8 ppb
2018-10-0118100403-010.810 ppb
2018-10-0118100403-03ND
2018-10-0118100403-05ND
2018-11-1518111316-041.47 ppb
2018-11-1518111316-0211.3 ppb
2018-11-1518111316-016.75 ppb
2018-11-1518111316-037.38 ppb
2019-01-0219010305-020.550 ppb
2019-01-0219010305-04ND
2019-02-1419021315-040.790 ppb
2019-02-1419021315-024.94 ppb
2019-02-1419021315-014.16 ppb
2019-02-1419021315-033.73 ppb
2019-04-0119040301-02ND
2019-04-0119040301-04ND
2019-05-1630344460041.20 ppb
2019-05-1630344460024.70 ppb
2019-05-1630344460015.30 ppb
2019-05-16303444600310.1 ppb
2019-07-0119070311-001ND
2019-07-0119070311-004ND
2019-08-1519081427-0041.25 ppb
2019-08-1519081427-0021.35 ppb
2019-08-1519081427-0017.27 ppb
2019-08-1519081427-00312.9 ppb
2019-10-0119100203-002ND
2019-10-0119100203-004ND
2019-11-1419111317-0041.41 ppb
2019-11-1419111317-0028.05 ppb
2019-11-1419111317-0019.90 ppb
2019-11-1419111317-00313.3 ppb
2019-11-1819112019-006ND