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EWG's Tap Water Database — 2021 UPDATE

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Bromoform

Beauregard Water Works District #3

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

 

276

Samples

0

Samples exceeding legal limit (MCL)

110

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20141.30 ppb3612ND - 7.19 ppb
20151.21 ppb4816ND - 8.85 ppb
20161.64 ppb4826ND - 10.8 ppb
20170.718 ppb4818ND - 3.70 ppb
20180.712 ppb4822ND - 3.80 ppb
20190.705 ppb4822ND - 3.00 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 Lab ID Result
2014-03-251287963ND
2014-03-251287965ND
2014-03-2512879661.97 ppb
2014-03-251287967ND
2014-03-251287968ND
2014-03-251287969ND
2014-03-251287963ND
2014-03-251287965ND
2014-03-2512879661.97 ppb
2014-03-251287967ND
2014-03-251287968ND
2014-03-251287969ND
2014-06-2513129262.29 ppb
2014-06-2513129277.19 ppb
2014-06-2513129287.01 ppb
2014-06-251312929ND
2014-06-251312930ND
2014-06-251312931ND
2014-06-2513129262.29 ppb
2014-06-2513129277.19 ppb
2014-06-2513129287.01 ppb
2014-06-251312929ND
2014-06-251312930ND
2014-06-251312931ND
2014-12-0313551291.54 ppb
2014-12-0313551303.32 ppb
2014-12-031355131ND
2014-12-031355132ND
2014-12-031355133ND
2014-12-031355134ND
2014-12-0313551291.54 ppb
2014-12-0313551303.32 ppb
2014-12-031355131ND
2014-12-031355132ND
2014-12-031355133ND
2014-12-031355134ND
2015-03-241381708ND
2015-03-2413817122.51 ppb
2015-03-2413817131.37 ppb
2015-03-241381714ND
2015-03-241381715ND
2015-03-241381716ND
2015-03-241381708ND
2015-03-2413817122.51 ppb
2015-03-2413817131.37 ppb
2015-03-241381714ND
2015-03-241381715ND
2015-03-241381716ND
2015-06-231405172ND
2015-06-2314051741.99 ppb
2015-06-231405175ND
2015-06-2314051763.61 ppb
2015-06-2314051771.80 ppb
2015-06-231405178ND
2015-06-231405172ND
2015-06-2314051741.99 ppb
2015-06-231405175ND
2015-06-2314051763.61 ppb
2015-06-2314051771.80 ppb
2015-06-231405178ND
2015-09-241430267ND
2015-09-2414302708.85 ppb
2015-09-2414302711.85 ppb
2015-09-241430272ND
2015-09-241430273ND
2015-09-241430274ND
2015-09-241430267ND
2015-09-2414302708.85 ppb
2015-09-2414302711.85 ppb
2015-09-241430272ND
2015-09-241430273ND
2015-09-241430274ND
2015-12-091450373ND
2015-12-0914503746.98 ppb
2015-12-091450375ND
2015-12-091450376ND
2015-12-091450377ND
2015-12-091450378ND
2015-12-091450373ND
2015-12-0914503746.98 ppb
2015-12-091450375ND
2015-12-091450376ND
2015-12-091450377ND
2015-12-091450378ND
2016-03-221476807ND
2016-03-221476808ND
2016-03-2214768093.39 ppb
2016-03-221476810ND
2016-03-221476811ND
2016-03-221476812ND
2016-03-221476807ND
2016-03-221476808ND
2016-03-2214768093.39 ppb
2016-03-221476810ND
2016-03-221476811ND
2016-03-221476812ND
2016-06-2715026704.08 ppb
2016-06-2715026711.18 ppb
2016-06-2715026720.910 ppb
2016-06-2715026730.660 ppb
2016-06-271502674ND
2016-06-2715026752.09 ppb
2016-06-2715026704.08 ppb
2016-06-2715026711.18 ppb
2016-06-2715026720.910 ppb
2016-06-2715026730.660 ppb
2016-06-271502674ND
2016-06-2715026752.09 ppb
2016-09-27152812010.5 ppb
2016-09-27152812110.8 ppb
2016-09-271528122ND
2016-09-271528123ND
2016-09-2715281240.460 ppb
2016-09-2715281250.680 ppb
2016-09-27152812010.5 ppb
2016-09-27152812110.8 ppb
2016-09-271528122ND
2016-09-271528123ND
2016-09-2715281240.460 ppb
2016-09-2715281250.680 ppb
2016-12-1915497840.580 ppb
2016-12-1915497852.46 ppb
2016-12-1915497861.61 ppb
2016-12-191549787ND
2016-12-191549788ND
2016-12-191549789ND
2016-12-1915497840.580 ppb
2016-12-1915497852.46 ppb
2016-12-1915497861.61 ppb
2016-12-191549787ND
2016-12-191549788ND
2016-12-191549789ND
2017-03-0235298738001ND
2017-03-0235298738002ND
2017-03-02352987380031.20 ppb
2017-03-02352987380042.90 ppb
2017-03-0235298738005ND
2017-03-0235298738006ND
2017-03-0235298738001ND
2017-03-0235298738002ND
2017-03-02352987380031.20 ppb
2017-03-02352987380042.90 ppb
2017-03-0235298738005ND
2017-03-0235298738006ND
2017-06-0135315802009ND
2017-06-0135315802010ND
2017-06-0135315802011ND
2017-06-01353158020122.00 ppb
2017-06-01353158020133.70 ppb
2017-06-0135315802014ND
2017-06-0135315802009ND
2017-06-0135315802010ND
2017-06-0135315802011ND
2017-06-01353158020122.00 ppb
2017-06-01353158020133.70 ppb
2017-06-0135315802014ND
2017-09-0735335094001ND
2017-09-0735335094002ND
2017-09-07353350940030.730 ppb
2017-09-07353350940043.20 ppb
2017-09-07353350940051.20 ppb
2017-09-0735335094006ND
2017-09-0735335094001ND
2017-09-0735335094002ND
2017-09-07353350940030.730 ppb
2017-09-07353350940043.20 ppb
2017-09-07353350940051.20 ppb
2017-09-0735335094006ND
2017-12-0635362366001ND
2017-12-0635362366002ND
2017-12-0635362366003ND
2017-12-06353623660041.20 ppb
2017-12-06353623660051.10 ppb
2017-12-0635362366006ND
2017-12-0635362366001ND
2017-12-0635362366002ND
2017-12-0635362366003ND
2017-12-06353623660041.20 ppb
2017-12-06353623660051.10 ppb
2017-12-0635362366006ND
2018-03-0735379177001ND
2018-03-0735379177002ND
2018-03-0735379177003ND
2018-03-07353791770043.80 ppb
2018-03-07353791770051.50 ppb
2018-03-0735379177006ND
2018-03-0735379177001ND
2018-03-0735379177002ND
2018-03-0735379177003ND
2018-03-07353791770043.80 ppb
2018-03-07353791770051.50 ppb
2018-03-0735379177006ND
2018-06-1335398741001ND
2018-06-13353987410020.810 ppb
2018-06-1335398741003ND
2018-06-13353987410042.50 ppb
2018-06-1335398741005ND
2018-06-13353987410061.50 ppb
2018-06-1335398741001ND
2018-06-13353987410020.810 ppb
2018-06-1335398741003ND
2018-06-13353987410042.50 ppb
2018-06-1335398741005ND
2018-06-13353987410061.50 ppb
2018-09-0435416221001ND
2018-09-04354162210020.890 ppb
2018-09-0435416221003ND
2018-09-04354162260010.600 ppb
2018-09-0435416226002ND
2018-09-04354162260031.50 ppb
2018-09-0435416221001ND
2018-09-04354162210020.890 ppb
2018-09-0435416221003ND
2018-09-04354162260010.600 ppb
2018-09-0435416226002ND
2018-09-04354162260031.50 ppb
2018-12-1235437374001ND
2018-12-12354373740020.580 ppb
2018-12-1235437374003ND
2018-12-12354373740042.20 ppb
2018-12-12354373740051.20 ppb
2018-12-1235437374006ND
2018-12-1235437374001ND
2018-12-12354373740020.580 ppb
2018-12-1235437374003ND
2018-12-12354373740042.20 ppb
2018-12-12354373740051.20 ppb
2018-12-1235437374006ND
2019-03-1135454715001ND
2019-03-11354547150022.50 ppb
2019-03-1135454716001ND
2019-03-1135454716002ND
2019-03-1135454716003ND
2019-03-1135454715001ND
2019-03-11354547150022.50 ppb
2019-03-1135454716001ND
2019-03-1135454716002ND
2019-03-1135454716003ND
2019-03-14354547150031.20 ppb
2019-03-14354547150031.20 ppb
2019-06-0335474282001ND
2019-06-0335474282002ND
2019-06-03354742820030.560 ppb
2019-06-0335474284001ND
2019-06-03354742840021.30 ppb
2019-06-03354742840032.30 ppb
2019-06-0335474282001ND
2019-06-0335474282002ND
2019-06-03354742820030.560 ppb
2019-06-0335474284001ND
2019-06-03354742840021.30 ppb
2019-06-03354742840032.30 ppb
2019-09-03354958240010.370 ppb
2019-09-03354958310010.380 ppb
2019-09-03354958310020.820 ppb
2019-09-0335495831003ND
2019-09-03354958240010.370 ppb
2019-09-03354958310010.380 ppb
2019-09-03354958310020.820 ppb
2019-09-0335495831003ND
2019-09-26355011310013.00 ppb
2019-09-2635501131002ND
2019-09-26355011310013.00 ppb
2019-09-2635501131002ND
2019-12-0235516981001ND
2019-12-02355169810022.90 ppb
2019-12-02355169810031.60 ppb
2019-12-0235516986001ND
2019-12-0235516986002ND
2019-12-0235516986003ND
2019-12-0235516981001ND
2019-12-02355169810022.90 ppb
2019-12-02355169810031.60 ppb
2019-12-0235516986001ND
2019-12-0235516986002ND
2019-12-0235516986003ND