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EWG's Tap Water Database — 2021 UPDATE

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Bromodichloromethane

Hawthorne Water Department

Bromodichloromethane, one of the total trihalomethanes (TTHMs), is formed when chlorine or other disinfectants are used to treat drinking water. Bromodichloromethane 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)

95

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
20141.21 ppb2614ND - 6.66 ppb
20151.45 ppb2519ND - 4.48 ppb
20161.31 ppb2516ND - 5.73 ppb
20171.54 ppb2617ND - 5.17 ppb
20181.74 ppb2515ND - 5.50 ppb
20191.97 ppb2514ND - 7.69 ppb

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.06 ppb

The EWG Health Guideline of 0.06 ppb for bromodichloromethane 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
2014-01-1425022-1ND
2014-02-1125411-4ND
2014-02-1125411-21.99 ppb
2014-02-1125411-11.09 ppb
2014-02-1125411-32.29 ppb
2014-04-0126079-1ND
2014-04-0126079-3ND
2014-05-1626758-41.23 ppb
2014-05-1626758-20.780 ppb
2014-05-1626758-11.64 ppb
2014-05-1626758-32.04 ppb
2014-07-0127554-1ND
2014-07-0127554-3ND
2014-08-1828383-4ND
2014-08-1828383-21.11 ppb
2014-08-1828383-12.39 ppb
2014-08-1828383-32.70 ppb
2014-10-0729298-1ND
2014-10-0729298-3ND
2014-10-0729298-6ND
2014-10-0729298-5ND
2014-11-1829948-40.620 ppb
2014-11-1829948-22.78 ppb
2014-11-1829948-16.66 ppb
2014-11-1829948-34.23 ppb
2015-01-0630628-10.580 ppb
2015-01-0630628-3ND
2015-02-1331246-41.24 ppb
2015-02-1331246-20.660 ppb
2015-02-1331246-11.30 ppb
2015-02-1331246-32.30 ppb
2015-04-07DWS117-14.48 ppb
2015-04-07DWS117-3ND
2015-05-12DWS499-41.70 ppb
2015-05-12DWS499-21.75 ppb
2015-05-12DWS499-12.70 ppb
2015-05-12DWS499-32.72 ppb
2015-07-07DWS1055-11.47 ppb
2015-07-07DWS1055-3ND
2015-08-11DWSC184-40.710 ppb
2015-08-11DWSC184-20.590 ppb
2015-08-11DWSC184-12.53 ppb
2015-08-11DWSC184-33.44 ppb
2015-10-06DWSC542-1ND
2015-10-06DWSC542-3ND
2015-10-06DWSC542-5ND
2015-11-13DWS1933-40.910 ppb
2015-11-13DWS1933-21.99 ppb
2015-11-13DWS1933-12.86 ppb
2015-11-13DWS1933-32.43 ppb
2016-01-04DWSC967-1ND
2016-01-04DWSC967-3ND
2016-02-16DWS2248-45.73 ppb
2016-02-16DWS2248-21.60 ppb
2016-02-16DWS2248-11.85 ppb
2016-02-16DWS2248-32.52 ppb
2016-04-04DWSC1374-1ND
2016-04-04DWSC1374-3ND
2016-05-13DWS2962-41.52 ppb
2016-05-13DWS2962-20.550 ppb
2016-05-13DWS2962-11.56 ppb
2016-05-13DWS2962-31.48 ppb
2016-07-05DWSC1763-1ND
2016-07-05DWSC1763-3ND
2016-08-12DWS3596-41.52 ppb
2016-08-12DWS3596-20.890 ppb
2016-08-12DWS3596-11.92 ppb
2016-08-12DWS3596-32.30 ppb
2016-10-04DWSC2209-1ND
2016-10-04DWSC2209-3ND
2016-10-04DWSC2209-5ND
2016-11-14DWS4210-40.520 ppb
2016-11-14DWS4210-22.90 ppb
2016-11-14DWS4210-12.02 ppb
2016-11-14DWS4210-33.82 ppb
2017-01-03DWSC2559-10.750 ppb
2017-01-03DWSC2559-3ND
2017-02-16DWS4803-41.14 ppb
2017-02-16DWS4803-31.89 ppb
2017-02-16DWS4803-22.13 ppb
2017-02-16DWS4803-12.89 ppb
2017-04-04DWSC2930-1ND
2017-04-04DWSC2930-3ND
2017-05-15DWS5474-41.94 ppb
2017-05-15DWS5474-33.16 ppb
2017-05-15DWS5474-24.06 ppb
2017-05-15DWS5474-15.17 ppb
2017-07-05DWSC3427-1ND
2017-07-05DWSC3427-3ND
2017-08-16DWS6216-40.800 ppb
2017-08-16DWS6216-20.700 ppb
2017-08-16DWS6216-12.96 ppb
2017-08-16DWS6216-34.19 ppb
2017-10-03DWSC4031-1ND
2017-10-03DWSC4031-3ND
2017-10-03DWSC4031-6ND
2017-10-03DWSC4031-5ND
2017-11-1470360760042.00 ppb
2017-11-1470360760021.50 ppb
2017-11-1470360760012.50 ppb
2017-11-1470360760032.20 ppb
2018-01-02DWSC4530-1ND
2018-01-02DWSC4530-3ND
2018-02-15DWS7852-40.810 ppb
2018-02-15DWS7852-21.31 ppb
2018-02-15DWS7852-12.29 ppb
2018-02-15DWS7852-32.53 ppb
2018-04-02DWSC5050-1ND
2018-04-02DWSC5050-3ND
2018-05-14DWS8658-42.10 ppb
2018-05-14DWS8658-23.46 ppb
2018-05-14DWS8658-13.56 ppb
2018-05-14DWS8658-35.50 ppb
2018-07-0218070327-01ND
2018-07-0218070327-03ND
2018-08-1623350380042.30 ppb
2018-08-162335038002ND
2018-08-1623350380012.90 ppb
2018-08-1623350380035.00 ppb
2018-10-0118100403-01ND
2018-10-0118100403-03ND
2018-10-0118100403-05ND
2018-11-1518111316-041.18 ppb
2018-11-1518111316-024.42 ppb
2018-11-1518111316-012.83 ppb
2018-11-1518111316-033.27 ppb
2019-01-0219010305-02ND
2019-01-0219010305-04ND
2019-02-1419021315-04ND
2019-02-1419021315-022.39 ppb
2019-02-1419021315-011.90 ppb
2019-02-1419021315-031.77 ppb
2019-04-0119040301-02ND
2019-04-0119040301-04ND
2019-05-1630344460041.40 ppb
2019-05-1630344460022.70 ppb
2019-05-1630344460012.20 ppb
2019-05-1630344460036.10 ppb
2019-07-0119070311-001ND
2019-07-0119070311-004ND
2019-08-1519081427-0041.44 ppb
2019-08-1519081427-002ND
2019-08-1519081427-0014.03 ppb
2019-08-1519081427-0037.15 ppb
2019-10-0119100203-002ND
2019-10-0119100203-004ND
2019-11-1419111317-0041.14 ppb
2019-11-1419111317-0024.23 ppb
2019-11-1419111317-0015.18 ppb
2019-11-1419111317-0037.69 ppb
2019-11-1819112019-006ND