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EWG's Tap Water Database — 2019 UPDATE

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Bromoform

Palmer Water District No.1

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.

 

136

Samples

0

Samples exceeding legal limit (MCL)

16

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND140ND
2013ND260ND
2014ND180ND
20150.0923 ppb264ND - 0.600 ppb
20160.392 ppb2614ND - 0.900 ppb
20170.0385 ppb262ND - 0.500 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 Result
2012-07-18ND
2012-07-18ND
2012-07-18ND
2012-07-18ND
2012-07-18ND
2012-07-18ND
2012-07-18ND
2012-07-18ND
2012-07-18ND
2012-07-18ND
2012-12-11ND
2012-12-11ND
2012-12-11ND
2012-12-11ND
2013-03-11ND
2013-03-11ND
2013-03-11ND
2013-03-11ND
2013-05-13ND
2013-05-13ND
2013-05-13ND
2013-05-13ND
2013-07-09ND
2013-07-09ND
2013-07-09ND
2013-07-09ND
2013-09-17ND
2013-09-17ND
2013-09-17ND
2013-09-17ND
2013-09-17ND
2013-09-17ND
2013-09-17ND
2013-09-17ND
2013-09-17ND
2013-09-17ND
2013-12-10ND
2013-12-10ND
2013-12-10ND
2013-12-10ND
2014-02-18ND
2014-02-18ND
2014-02-18ND
2014-02-18ND
2014-09-24ND
2014-09-24ND
2014-09-24ND
2014-09-24ND
2014-09-24ND
2014-09-24ND
2014-09-24ND
2014-09-24ND
2014-09-24ND
2014-09-24ND
2014-11-24ND
2014-11-24ND
2014-11-24ND
2014-11-24ND
2015-02-10ND
2015-02-10ND
2015-02-10ND
2015-02-10ND
2015-04-22ND
2015-04-22ND
2015-04-22ND
2015-04-22ND
2015-08-10ND
2015-08-10ND
2015-08-10ND
2015-08-10ND
2015-08-10ND
2015-08-10ND
2015-08-10ND
2015-08-10ND
2015-08-10ND
2015-08-10ND
2015-08-100.600 ppb
2015-08-100.600 ppb
2015-08-100.600 ppb
2015-08-100.600 ppb
2015-11-16ND
2015-11-16ND
2015-11-16ND
2015-11-16ND
2016-02-02ND
2016-02-02ND
2016-02-020.500 ppb
2016-02-020.500 ppb
2016-05-100.700 ppb
2016-05-100.700 ppb
2016-05-100.700 ppb
2016-05-100.700 ppb
2016-08-09ND
2016-08-09ND
2016-08-09ND
2016-08-09ND
2016-08-09ND
2016-08-09ND
2016-08-09ND
2016-08-09ND
2016-08-09ND
2016-08-09ND
2016-08-090.900 ppb
2016-08-090.900 ppb
2016-08-090.900 ppb
2016-08-090.900 ppb
2016-11-150.700 ppb
2016-11-150.700 ppb
2016-11-150.700 ppb
2016-11-150.700 ppb
2017-03-16ND
2017-03-16ND
2017-03-16ND
2017-03-16ND
2017-04-11ND
2017-04-11ND
2017-04-11ND
2017-04-11ND
2017-07-18ND
2017-07-18ND
2017-07-18ND
2017-07-18ND
2017-11-010.500 ppb
2017-11-010.500 ppb
2017-11-01ND
2017-11-01ND
2017-11-15ND
2017-11-15ND
2017-11-15ND
2017-11-15ND
2017-11-15ND
2017-11-15ND
2017-11-15ND
2017-11-15ND
2017-11-15ND
2017-11-15ND