Menu

EWG's Tap Water Database

Donate

Bromoform

Warminster Municipal Authority

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.

 

64

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2010N/A00N/A
20111.39 ppb660.840 ppb - 2.50 ppb
20121.04 ppb1211ND - 2.00 ppb
20131.46 ppb14140.510 ppb - 3.40 ppb
20140.778 ppb168ND - 2.70 ppb
20150.876 ppb1612ND - 2.50 ppb

ppb = parts per billion.

State and national drinking water standards and health guidelines

Health Guideline 0.5 ppb

The 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.

EPA Maximum Contaminant
Level Goal (MCLG)0 ppb

A non-enforceable federal health guideline. For cancer-causing chemicals, these health goals are typically set to zero.

ppb = parts per billion.

All test results

Date Lab ID Result
2011-09-1699270860012.50 ppb
2011-09-1699270860020.920 ppb
2011-09-1699270860030.840 ppb
2011-12-0699410750031.30 ppb
2011-12-0699410750011.30 ppb
2011-12-0699410750021.50 ppb
2012-02-2899545230031.30 ppb
2012-02-2899545230012.00 ppb
2012-02-2899545230021.80 ppb
2012-05-1899686030020.890 ppb
2012-05-189968603003ND
2012-05-1899686030010.630 ppb
2012-09-1899891490031.50 ppb
2012-09-1899891490020.990 ppb
2012-09-1899891490011.40 ppb
2012-11-0899976270030.520 ppb
2012-11-0899976270020.940 ppb
2012-11-0899976270010.500 ppb
2013-02-2010132580021.40 ppb
2013-02-2010132580011.50 ppb
2013-02-2010132580031.20 ppb
2013-05-2110282890010.510 ppb
2013-05-2110282890023.40 ppb
2013-05-2110282890031.60 ppb
2013-08-2010442080030.730 ppb
2013-08-2010442080011.40 ppb
2013-08-2010442080020.630 ppb
2013-08-2010442080042.10 ppb
2013-11-2010599890041.60 ppb
2013-11-2010599890011.50 ppb
2013-11-2010599890031.20 ppb
2013-11-2010599890021.70 ppb
2014-02-191072699002ND
2014-02-1910726990030.750 ppb
2014-02-1910726990040.840 ppb
2014-02-191072699001ND
2014-05-2020078510031.90 ppb
2014-05-2020078510041.30 ppb
2014-05-202007851001ND
2014-05-202007851002ND
2014-08-1920247290031.70 ppb
2014-08-1920247290042.40 ppb
2014-08-192024729002ND
2014-09-052027670001ND
2014-11-172040720002ND
2014-11-1720407200042.70 ppb
2014-11-172040720001ND
2014-11-1720407200030.860 ppb
2015-02-1812389410ND
2015-02-18123894040.690 ppb
2015-02-18123894221.10 ppb
2015-02-18123894160.960 ppb
2015-05-18127375421.30 ppb
2015-05-18127375480.790 ppb
2015-05-1812737536ND
2015-05-18127375300.720 ppb
2015-08-19131227651.80 ppb
2015-08-19131227590.540 ppb
2015-08-19131227712.50 ppb
2015-08-19131227531.80 ppb
2015-11-20135023620.520 ppb
2015-11-2013502368ND
2015-11-20135023741.30 ppb
2015-11-2013502356ND