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EWG's Tap Water Database — 2019 UPDATE

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Bromodichloromethane

Palmer Water District No.1

Bromodichloromethane, one of the total trihalomethanes (TTHMs), is formed when chlorine or other disinfectants are used to treat drinking water. Bromodichloromethane and other disinfection byproducts increase the risk of cancer and may cause problems during pregnancy. Click here to read more about disinfection byproducts.

 

68

Samples

0

Samples exceeding legal limit (MCL)

34

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20120.281 ppb71ND - 1.97 ppb
20130.208 ppb132ND - 2.05 ppb
20140.348 ppb93ND - 1.85 ppb
20154.68 ppb139ND - 9.10 ppb
20163.78 ppb138ND - 7.60 ppb
20174.39 ppb1311ND - 11.6 ppb

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.06 ppb

The EWG Health Guideline of 0.06 ppb for bromodichloromethane 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
2012-07-181.97 ppb
2012-07-18ND
2012-12-11ND
2012-12-11ND
2013-03-11ND
2013-03-11ND
2013-05-13ND
2013-05-13ND
2013-07-09ND
2013-07-09ND
2013-09-17ND
2013-09-17ND
2013-09-170.660 ppb
2013-09-172.05 ppb
2013-09-17ND
2013-12-10ND
2013-12-10ND
2014-02-18ND
2014-02-18ND
2014-09-240.770 ppb
2014-09-24ND
2014-09-241.85 ppb
2014-09-24ND
2014-09-240.510 ppb
2014-11-24ND
2014-11-24ND
2015-02-105.30 ppb
2015-02-105.40 ppb
2015-04-225.70 ppb
2015-04-226.30 ppb
2015-08-108.20 ppb
2015-08-105.18 ppb
2015-08-10ND
2015-08-109.10 ppb
2015-08-10ND
2015-08-10ND
2015-08-10ND
2015-11-167.80 ppb
2015-11-167.90 ppb
2016-02-025.90 ppb
2016-02-026.20 ppb
2016-05-105.60 ppb
2016-05-105.80 ppb
2016-08-097.00 ppb
2016-08-09ND
2016-08-09ND
2016-08-097.60 ppb
2016-08-09ND
2016-08-09ND
2016-08-09ND
2016-11-155.50 ppb
2016-11-155.50 ppb
2017-03-164.60 ppb
2017-03-164.60 ppb
2017-04-114.00 ppb
2017-04-114.20 ppb
2017-07-186.40 ppb
2017-07-186.40 ppb
2017-11-0111.0 ppb
2017-11-0111.6 ppb
2017-11-15ND
2017-11-152.00 ppb
2017-11-15ND
2017-11-151.77 ppb
2017-11-150.540 ppb