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EWG's Tap Water Database — 2019 UPDATE

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Bromodichloromethane

Salt Lake City Water System

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.

 

97

Samples

0

Samples exceeding legal limit (MCL)

21

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012N/A00N/A
20132.10 ppb331.000 ppb - 3.90 ppb
2014ND310ND
20152.79 ppb3213ND - 11.3 ppb
20160.148 ppb293ND - 2.20 ppb
20172.90 ppb221.80 ppb - 4.00 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
2013-01-181.000 ppb
2013-01-181.40 ppb
2013-01-183.90 ppb
2014-01-10ND
2014-01-10ND
2014-05-30ND
2014-05-30ND
2014-05-30ND
2014-05-30ND
2014-06-03ND
2014-06-03ND
2014-06-06ND
2014-06-06ND
2014-06-06ND
2014-06-11ND
2014-06-11ND
2014-06-25ND
2014-06-25ND
2014-06-25ND
2014-06-25ND
2014-07-01ND
2014-07-01ND
2014-07-01ND
2014-07-01ND
2014-07-02ND
2014-07-02ND
2014-07-09ND
2014-07-09ND
2014-07-09ND
2014-07-09ND
2014-07-09ND
2014-07-09ND
2014-07-11ND
2014-07-11ND
2015-01-30ND
2015-01-30ND
2015-02-271.50 ppb
2015-05-08ND
2015-05-15ND
2015-06-19ND
2015-06-19ND
2015-06-19ND
2015-06-29ND
2015-06-30ND
2015-06-30ND
2015-07-07ND
2015-07-10ND
2015-07-10ND
2015-07-10ND
2015-08-07ND
2015-09-04ND
2015-09-18ND
2015-09-29ND
2015-09-29ND
2015-10-2710.8 ppb
2015-10-278.40 ppb
2015-10-276.90 ppb
2015-10-276.90 ppb
2015-10-274.90 ppb
2015-10-2711.3 ppb
2015-10-278.50 ppb
2015-10-278.10 ppb
2015-10-272.10 ppb
2015-10-272.00 ppb
2015-10-279.40 ppb
2015-10-278.50 ppb
2016-01-080.900 ppb
2016-01-081.20 ppb
2016-01-15ND
2016-02-122.20 ppb
2016-02-26ND
2016-03-25ND
2016-05-18ND
2016-05-18ND
2016-05-18ND
2016-05-19ND
2016-05-19ND
2016-06-03ND
2016-06-03ND
2016-06-10ND
2016-06-10ND
2016-06-10ND
2016-06-24ND
2016-06-24ND
2016-06-24ND
2016-06-28ND
2016-06-28ND
2016-07-01ND
2016-07-08ND
2016-07-08ND
2016-07-13ND
2016-07-29ND
2016-07-29ND
2016-07-29ND
2016-08-05ND
2017-01-161.80 ppb
2017-01-164.00 ppb