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EWG's Tap Water Database — 2021 UPDATE

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Bromoform

Beacon City

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

 

80

Samples

0

Samples exceeding legal limit (MCL)

52

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
20141.33 ppb2014ND - 3.20 ppb
20150.800 ppb86ND - 1.38 ppb
20161.05 ppb1613ND - 1.92 ppb
20173.18 ppb442.80 ppb - 3.50 ppb
20181.02 ppb1612ND - 2.30 ppb
20190.144 ppb164ND - 0.600 ppb

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.5 ppb

The EWG Health Guideline of 0.5 ppb for bromoform 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
2014-01-14420-74020-1A3.20 ppb
2014-01-14420-74020-3ND
2014-01-14420-74020-4ND
2014-01-14420-74020-2ND
2014-01-14420-74020-12.64 ppb
2014-01-14420-74020-3A1.11 ppb
2014-01-14420-74020-2A1.11 ppb
2014-01-14420-74020-4A1.10 ppb
2014-04-08420-76538-10.674 ppb
2014-04-08420-76538-3ND
2014-04-08420-76538-2ND
2014-04-08420-76538-4ND
2014-07-22420-80202-41.11 ppb
2014-07-22420-80202-11.49 ppb
2014-07-22420-80202-31.26 ppb
2014-07-22420-80202-2A1.35 ppb
2014-10-14420-83395-32.69 ppb
2014-10-14420-83395-42.92 ppb
2014-10-14420-83395-12.90 ppb
2014-10-14420-83395-23.08 ppb
2015-01-2001201504END
2015-01-20012015040.590 ppb
2015-01-2001201504C0.520 ppb
2015-01-2001201504AND
2015-04-14420-89226-21.31 ppb
2015-04-14420-89226-31.30 ppb
2015-04-14420-89226-41.38 ppb
2015-04-14420-89226-11.30 ppb
2016-01-20BC1694ND
2016-01-20BC1695ND
2016-01-20BC1696ND
2016-01-20BC16931.02 ppb
2016-04-27CB168650.790 ppb
2016-04-27CB168660.930 ppb
2016-04-27CB168670.930 ppb
2016-04-27CB168640.590 ppb
2016-07-21CB1616551.77 ppb
2016-07-21CB1616571.64 ppb
2016-07-21CB1616581.92 ppb
2016-07-21CB1616561.11 ppb
2016-10-25BW1639061.90 ppb
2016-10-25BW1639051.80 ppb
2016-10-25BW1639041.20 ppb
2016-10-25BW0639071.20 ppb
2017-10-24BE1727263.20 ppb
2017-10-24BE1727233.50 ppb
2017-10-24BE1727242.80 ppb
2017-10-24BE1727253.20 ppb
2018-01-16BC1801431.000 ppb
2018-01-16BC1801442.30 ppb
2018-01-16BC1801462.30 ppb
2018-01-16BC1801452.20 ppb
2018-04-11CB1807230.900 ppb
2018-04-11CB1807251.40 ppb
2018-04-11CB1807261.30 ppb
2018-04-11CB1807241.20 ppb
2018-07-12CB1814230.800 ppb
2018-07-12CB1814240.900 ppb
2018-07-12CB1814220.800 ppb
2018-07-12CB1814211.20 ppb
2018-10-11CB182428ND
2018-10-11CB182430ND
2018-10-11CB182431ND
2018-10-11CB182429ND
2019-01-0819A0302-03ND
2019-01-0819A0302-01ND
2019-01-0819A0302-04ND
2019-01-0819A0302-02ND
2019-04-10CB190922ND
2019-04-10CB190923ND
2019-04-10CB190925ND
2019-04-10CB1909240.600 ppb
2019-07-0919G0386-04ND
2019-07-0919G0386-03ND
2019-07-0919G0386-02ND
2019-07-0919G0386-01ND
2019-10-0819J0429-030.600 ppb
2019-10-0819J0429-04ND
2019-10-0819J0429-020.500 ppb
2019-10-0819J0429-010.600 ppb