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EWG's Tap Water Database — 2019 UPDATE

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Bromoform

Pico WD

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.

 

115

Samples

0

Samples exceeding legal limit (MCL)

60

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20120.323 ppb132ND - 2.30 ppb
20130.363 ppb81ND - 2.90 ppb
20141.74 ppb2415ND - 7.40 ppb
20151.66 ppb2316ND - 4.40 ppb
20161.21 ppb2413ND - 5.10 ppb
20171.19 ppb2313ND - 3.80 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
2012-03-139588-004-0925ND
2012-03-139588-006-0940ND
2012-03-139588-009-0950ND
2012-03-149588-002-0930ND
2012-03-149588-011-0945ND
2012-05-099588-002-0945ND
2012-08-179588-006-0914ND
2012-08-179588-009-0927ND
2012-08-179588-011-0858ND
2012-08-219588-004-08101.90 ppb
2012-12-129588-004-11322.30 ppb
2012-12-129588-009-0937ND
2012-12-129588-011-1019ND
2013-03-219588-006-0930ND
2013-03-219588-009-0942ND
2013-03-269588-002-1040ND
2013-03-269588-004-11402.90 ppb
2013-03-269588-011-0955ND
2013-06-269588-011-0900ND
2013-12-069588-011-1320ND
2013-12-139588-006-1015ND
2014-01-069588-011-0745ND
2014-02-119588-800-08232.00 ppb
2014-02-119588-801-09533.90 ppb
2014-02-119588-802-11183.30 ppb
2014-02-119588-803-10441.20 ppb
2014-03-209588-002-0930ND
2014-03-209588-004-0936ND
2014-03-209588-006-1000ND
2014-03-209588-009-1008ND
2014-05-139588-800-08171.40 ppb
2014-05-139588-801-08431.50 ppb
2014-05-139588-802-11155.00 ppb
2014-05-139588-803-1038ND
2014-06-209588-011-0950ND
2014-08-139588-800-13133.50 ppb
2014-08-139588-801-12332.10 ppb
2014-08-139588-802-11377.40 ppb
2014-08-139588-803-10561.70 ppb
2014-08-229588-011-1005ND
2014-10-239588-011-0940ND
2014-11-129588-800-08251.50 ppb
2014-11-129588-801-08571.60 ppb
2014-11-129588-802-12214.60 ppb
2014-11-129588-803-11111.10 ppb
2015-02-109588-800-07502.60 ppb
2015-02-109588-801-09102.30 ppb
2015-02-109588-802-10554.40 ppb
2015-02-109588-803-10101.10 ppb
2015-03-189588-004-08311.90 ppb
2015-03-189588-006-0819ND
2015-03-189588-009-0806ND
2015-03-189588-011-0755ND
2015-05-129588-800-13513.10 ppb
2015-05-129588-801-09382.40 ppb
2015-05-129588-802-12123.60 ppb
2015-05-129588-803-10281.40 ppb
2015-06-229588-011-0837ND
2015-08-109588-800-07482.50 ppb
2015-08-109588-801-08323.40 ppb
2015-08-109588-802-12102.60 ppb
2015-08-109588-803-10271.50 ppb
2015-08-269588-011-0957ND
2015-11-099588-800-12582.20 ppb
2015-11-099588-801-11141.20 ppb
2015-11-099588-802-09582.00 ppb
2015-11-099588-803-1016ND
2015-12-239588-011-0823ND
2016-02-109588-800-07581.90 ppb
2016-02-109588-801-09431.70 ppb
2016-02-109588-802-12481.70 ppb
2016-02-109588-803-1043ND
2016-02-259588-011-0800ND
2016-03-149588-009-0915ND
2016-03-239588-004-08022.20 ppb
2016-03-239588-006-0816ND
2016-05-099588-011-0828ND
2016-05-249588-800-07482.30 ppb
2016-05-249588-801-09251.70 ppb
2016-05-249588-802-12415.10 ppb
2016-05-249588-803-1148ND
2016-08-109588-011-0825ND
2016-08-179588-800-0728ND
2016-08-179588-801-09322.10 ppb
2016-08-179588-802-12392.30 ppb
2016-08-179588-803-13001.80 ppb
2016-11-089588-800-07461.90 ppb
2016-11-089588-801-09301.40 ppb
2016-11-089588-802-13053.00 ppb
2016-11-089588-803-1336ND
2016-11-309588-011-0800ND
2016-12-229588-011-0837ND
2017-02-149588-800-08591.20 ppb
2017-02-149588-801-1058ND
2017-02-149588-802-13183.00 ppb
2017-02-149588-803-1238ND
2017-02-239588-011-0840ND
2017-03-209588-004-10003.40 ppb
2017-03-209588-006-0920ND
2017-03-209588-009-0910ND
2017-05-089588-011-0815ND
2017-05-099588-800-07542.40 ppb
2017-05-099588-801-0848ND
2017-05-099588-802-10351.40 ppb
2017-05-099588-803-0911ND
2017-08-079588-800-14302.20 ppb
2017-08-079588-801-13061.80 ppb
2017-08-079588-802-11181.40 ppb
2017-08-079588-803-12141.20 ppb
2017-08-249588-011-0924ND
2017-11-149588-800-11262.60 ppb
2017-11-149588-801-12543.80 ppb
2017-11-149588-802-10341.90 ppb
2017-11-149588-803-09011.000 ppb
2017-11-229588-011-0850ND