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EWG's Tap Water Database — 2021 UPDATE

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Bromoform

City of Auburn

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.

MORE ABOUT THIS CONTAMINANT

 

148

Samples

0

Samples exceeding legal limit (MCL)

29

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.134 ppb324ND - 1.40 ppb
20150.381 ppb3215ND - 1.60 ppb
20160.124 ppb334ND - 1.50 ppb
20170.253 ppb328ND - 1.40 ppb
20180.327 ppb156ND - 1.60 ppb
2019ND40ND

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
2014-02-1173334ND
2014-02-11733321.20 ppb
2014-02-1173335ND
2014-02-1173338ND
2014-02-1173333ND
2014-02-1173339ND
2014-02-11733370.500 ppb
2014-02-1173336ND
2014-05-0773538ND
2014-05-0773539ND
2014-05-0773534ND
2014-05-0773533ND
2014-05-0773536ND
2014-05-0773537ND
2014-05-0773535ND
2014-05-0773532ND
2014-08-2874104ND
2014-08-28740991.20 ppb
2014-08-2874103ND
2014-08-2874102ND
2014-08-2874105ND
2014-08-2874100ND
2014-08-2874101ND
2014-08-2874098ND
2014-11-1874531ND
2014-11-1874532ND
2014-11-1874529ND
2014-11-1874534ND
2014-11-1874535ND
2014-11-1874530ND
2014-11-18745281.40 ppb
2014-11-1874533ND
2015-02-1174763ND
2015-02-1174765ND
2015-02-11747661.40 ppb
2015-02-11747640.500 ppb
2015-02-1174767ND
2015-02-1174768ND
2015-02-1174762ND
2015-02-1174761ND
2015-05-2175020ND
2015-05-2175021ND
2015-05-21750171.60 ppb
2015-05-21750220.500 ppb
2015-05-2175018ND
2015-05-2175019ND
2015-05-2175015ND
2015-05-2175016ND
2015-09-16754810.700 ppb
2015-09-16754840.500 ppb
2015-09-16754791.30 ppb
2015-09-16754800.700 ppb
2015-09-16754770.500 ppb
2015-09-16754820.500 ppb
2015-09-1675478ND
2015-09-16754830.500 ppb
2015-11-05756420.700 ppb
2015-11-05756430.800 ppb
2015-11-0575640ND
2015-11-05756450.900 ppb
2015-11-0575646ND
2015-11-0575641ND
2015-11-05756471.10 ppb
2015-11-0575644ND
2016-02-10ND
2016-02-10ND
2016-02-10ND
2016-02-10ND
2016-02-10ND
2016-02-10ND
2016-02-101.10 ppb
2016-02-10ND
2016-06-02ND
2016-06-02ND
2016-06-02ND
2016-06-02ND
2016-06-02ND
2016-06-02ND
2016-06-02ND
2016-06-021.50 ppb
2016-07-07ND
2016-08-10ND
2016-08-10ND
2016-08-10ND
2016-08-10ND
2016-08-10ND
2016-08-10ND
2016-08-10ND
2016-08-10ND
2016-11-03ND
2016-11-03ND
2016-11-03ND
2016-11-03ND
2016-11-03ND
2016-11-030.500 ppb
2016-11-031.000 ppb
2016-11-03ND
2017-03-22ND
2017-03-22ND
2017-03-22ND
2017-03-22ND
2017-03-22ND
2017-03-22ND
2017-03-22ND
2017-03-221.000 ppb
2017-05-041.20 ppb
2017-05-041.10 ppb
2017-05-04ND
2017-05-041.000 ppb
2017-05-041.20 ppb
2017-05-04ND
2017-05-04ND
2017-05-04ND
2017-08-15ND
2017-08-15ND
2017-08-15ND
2017-08-15ND
2017-08-150.600 ppb
2017-08-15ND
2017-08-15ND
2017-08-15ND
2017-11-150.600 ppb
2017-11-15ND
2017-11-15ND
2017-11-15ND
2017-11-15ND
2017-11-151.40 ppb
2017-11-15ND
2017-11-15ND
2018-02-080.600 ppb
2018-02-08ND
2018-02-08ND
2018-02-080.600 ppb
2018-02-080.600 ppb
2018-02-080.700 ppb
2018-02-081.60 ppb
2018-02-08ND
2018-02-08ND
2018-03-20ND
2018-07-11ND
2018-07-11ND
2018-07-11ND
2018-08-16ND
2018-08-160.810 ppb
2019-07-01ND
2019-07-01ND
2019-08-01ND
2019-08-01ND