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EWG's Tap Water Database — 2019 UPDATE

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Bromoform

Freeport

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.

 

71

Samples

0

Samples exceeding legal limit (MCL)

38

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20120.870 ppb220.620 ppb - 1.12 ppb
20130.584 ppb52ND - 1.81 ppb
20140.803 ppb166ND - 4.06 ppb
20151.10 ppb1611ND - 2.87 ppb
20161.11 ppb1610ND - 5.58 ppb
20170.643 ppb167ND - 1.81 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
2012-06-071206376-001A1.12 ppb
2012-09-252093440-010.620 ppb
2013-06-253063629-011.81 ppb
2013-10-151310A09-004AND
2013-10-151310A09-003AND
2013-10-151310A09-002A1.11 ppb
2013-10-151310A09-001AND
2014-01-141401551-003AND
2014-01-141401551-002A1.22 ppb
2014-01-141401551-001AND
2014-01-141401551-004AND
2014-04-151404929-003AND
2014-04-151404929-004A3.24 ppb
2014-04-151404929-002AND
2014-04-151404929-001AND
2014-07-151407A36-004A2.04 ppb
2014-07-151407A36-001AND
2014-07-151407A36-003AND
2014-07-151407A36-002A1.08 ppb
2014-10-141410829-003AND
2014-10-141410829-002AND
2014-10-141410829-001A1.20 ppb
2014-10-141410829-004A4.06 ppb
2015-01-131501688-004A1.11 ppb
2015-01-131501688-003AND
2015-01-131501688-002A1.17 ppb
2015-01-131501688-001AND
2015-04-151504C92-004A1.98 ppb
2015-04-151504C92-003AND
2015-04-151504C92-001A1.06 ppb
2015-04-151504C92-002A1.05 ppb
2015-07-141507D12-004A1.85 ppb
2015-07-141507D12-002A2.63 ppb
2015-07-141507D12-003AND
2015-07-141507D12-001A1.50 ppb
2015-10-201510H39-004A2.87 ppb
2015-10-201510H39-002A1.08 ppb
2015-10-201510H39-001A1.25 ppb
2015-10-201510H39-003AND
2016-01-121601644-001A1.000 ppb
2016-01-121601644-003AND
2016-01-121601644-004A1.03 ppb
2016-01-121601644-002A1.15 ppb
2016-04-121604855-004A2.00 ppb
2016-04-121604855-001AND
2016-04-121604855-002AND
2016-04-121604855-003AND
2016-07-121607B56-001A1.30 ppb
2016-07-121607B56-002AND
2016-07-121607B56-004A1.44 ppb
2016-07-121607B56-003A1.86 ppb
2016-10-121610A29-003AND
2016-10-121610A29-004A1.27 ppb
2016-10-121610A29-002A1.05 ppb
2016-10-121610A29-001A5.58 ppb
2017-01-101701673-003AND
2017-01-101701673-004AND
2017-01-101701673-002AND
2017-01-101701673-001AND
2017-04-111704929-001A1.35 ppb
2017-04-111704929-002A1.45 ppb
2017-04-111704929-003AND
2017-04-111704929-004AND
2017-07-111707926-001A1.81 ppb
2017-07-111707926-004AND
2017-07-111707926-003AND
2017-07-111707926-002A1.67 ppb
2017-10-111710A74-002A1.34 ppb
2017-10-111710A74-001A1.11 ppb
2017-10-111710A74-003AND
2017-10-111710A74-004A1.55 ppb