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EWG's Tap Water Database — 2019 UPDATE

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Bromoform

Olivenhain Municipal Water District

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.

 

239

Samples

0

Samples exceeding legal limit (MCL)

221

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20126.78 ppb21213.00 ppb - 9.70 ppb
20133.62 ppb34342.60 ppb - 5.80 ppb
20145.61 ppb37372.30 ppb - 13.1 ppb
20154.44 ppb45452.60 ppb - 9.60 ppb
20163.55 ppb42421.80 ppb - 8.30 ppb
20172.48 ppb6042ND - 5.40 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
2012-01-239590-003-09546.60 ppb
2012-02-089590-003-09205.80 ppb
2012-03-129590-003-13006.50 ppb
2012-04-179590-003-09457.00 ppb
2012-05-079590-003-13106.30 ppb
2012-05-143761-900-10157.30 ppb
2012-05-143761-901-09106.70 ppb
2012-05-143761-902-11257.10 ppb
2012-05-143761-903-11057.00 ppb
2012-05-143761-904-08257.40 ppb
2012-05-143761-905-10457.00 ppb
2012-05-143761-906-07556.00 ppb
2012-05-143761-907-09456.70 ppb
2012-06-129590-003-13454.40 ppb
2012-07-119590-003-09309.70 ppb
2012-08-219590-003-08503.00 ppb
2012-08-219590-003-09455.50 ppb
2012-11-143761-900-09208.00 ppb
2012-11-143761-901-08508.20 ppb
2012-11-143761-905-10058.50 ppb
2012-11-143761-907-09407.70 ppb
2013-04-169590-003-10115.80 ppb
2013-05-143761-900-09203.50 ppb
2013-05-143761-901-08203.50 ppb
2013-05-143761-902-09254.00 ppb
2013-05-143761-903-08553.10 ppb
2013-05-143761-904-08153.60 ppb
2013-05-143761-905-10253.90 ppb
2013-05-143761-906-07453.30 ppb
2013-05-143761-907-09453.70 ppb
2013-05-229590-003-13303.00 ppb
2013-06-279590-003-12003.00 ppb
2013-07-229590-003-12454.40 ppb
2013-08-133761-900-11103.90 ppb
2013-08-133761-901-10303.90 ppb
2013-08-133761-902-10153.50 ppb
2013-08-133761-903-10403.70 ppb
2013-08-133761-904-11103.70 ppb
2013-08-133761-905-12154.10 ppb
2013-08-133761-906-11403.60 ppb
2013-08-133761-907-11403.60 ppb
2013-08-159590-003-13153.80 ppb
2013-08-209590-003-12003.50 ppb
2013-09-129590-003-13004.30 ppb
2013-10-109590-003-10554.10 ppb
2013-11-133761-900-09403.10 ppb
2013-11-133761-901-10003.40 ppb
2013-11-133761-902-08453.00 ppb
2013-11-133761-903-08152.60 ppb
2013-11-133761-904-09253.00 ppb
2013-11-133761-905-10453.20 ppb
2013-11-133761-906-10053.00 ppb
2013-11-133761-907-09003.10 ppb
2013-11-149590-003-13453.60 ppb
2013-12-119590-003-13454.50 ppb
2014-01-149590-003-11373.20 ppb
2014-02-069590-003-10452.90 ppb
2014-02-123761-900-11002.80 ppb
2014-02-123761-901-10303.00 ppb
2014-02-123761-902-10552.50 ppb
2014-02-123761-903-10202.50 ppb
2014-02-123761-904-11402.50 ppb
2014-02-123761-905-12002.70 ppb
2014-02-123761-906-12152.60 ppb
2014-02-123761-907-11302.60 ppb
2014-03-139590-003-11146.10 ppb
2014-04-229590-003-11303.10 ppb
2014-05-133761-900-10452.60 ppb
2014-05-133761-901-11152.80 ppb
2014-05-133761-902-08352.60 ppb
2014-05-133761-903-08552.40 ppb
2014-05-133761-904-09502.70 ppb
2014-05-133761-905-08502.90 ppb
2014-05-133761-906-10252.30 ppb
2014-05-133761-907-10152.80 ppb
2014-05-149590-003-15003.10 ppb
2014-06-189590-003-10306.50 ppb
2014-07-249590-003-114511.0 ppb
2014-08-123761-900-094013.1 ppb
2014-08-123761-901-101511.6 ppb
2014-08-123761-902-092010.6 ppb
2014-08-123761-903-094011.4 ppb
2014-08-123761-904-081010.7 ppb
2014-08-123761-905-082011.4 ppb
2014-08-123761-906-074012.0 ppb
2014-08-123761-907-091011.4 ppb
2014-08-139590-003-132011.0 ppb
2014-08-209590-003-13309.30 ppb
2014-09-109590-003-11154.80 ppb
2014-10-239590-003-11105.10 ppb
2014-11-139590-003-11303.70 ppb
2014-12-109590-003-12203.40 ppb
2015-01-129590-003-14103.30 ppb
2015-02-109590-003-13304.30 ppb
2015-02-103761-900-09002.80 ppb
2015-02-103761-901-08102.70 ppb
2015-02-103761-902-10152.90 ppb
2015-02-103761-903-11153.10 ppb
2015-02-103761-904-08302.90 ppb
2015-02-103761-904-09052.80 ppb
2015-02-103761-905-10302.90 ppb
2015-02-103761-907-09402.80 ppb
2015-03-129590-003-11404.10 ppb
2015-04-089590-003-12404.20 ppb
2015-05-129590-003-13156.60 ppb
2015-05-123761-900-10106.90 ppb
2015-05-123761-901-10406.30 ppb
2015-05-123761-902-09406.40 ppb
2015-05-123761-903-10206.30 ppb
2015-05-123761-904-09007.60 ppb
2015-05-123761-905-08557.50 ppb
2015-05-123761-906-08306.90 ppb
2015-05-123761-907-09306.50 ppb
2015-06-109590-003-12059.60 ppb
2015-07-099590-003-13409.00 ppb
2015-08-119588-900-08304.90 ppb
2015-08-119588-901-09204.80 ppb
2015-08-119588-902-09302.60 ppb
2015-08-119588-903-10152.70 ppb
2015-08-119588-904-08453.10 ppb
2015-08-119588-905-10005.00 ppb
2015-08-119588-906-08152.80 ppb
2015-08-119588-907-08555.00 ppb
2015-08-129590-003-13154.00 ppb
2015-08-199590-003-12213.80 ppb
2015-09-099590-003-13363.20 ppb
2015-10-149590-003-13153.40 ppb
2015-11-109590-003-13153.80 ppb
2015-11-109588-900-09203.30 ppb
2015-11-109588-901-08453.90 ppb
2015-11-109588-902-11003.50 ppb
2015-11-109588-903-10403.60 ppb
2015-11-109588-904-08403.40 ppb
2015-11-109588-905-08153.50 ppb
2015-11-109588-905-10203.80 ppb
2015-11-109588-907-09453.90 ppb
2015-12-099590-003-13453.40 ppb
2016-01-139590-003-13503.70 ppb
2016-02-109590-003-13453.40 ppb
2016-02-109588-900-09502.30 ppb
2016-02-109588-901-08401.80 ppb
2016-02-109588-901-09501.90 ppb
2016-02-109588-903-09102.80 ppb
2016-02-109588-904-09502.40 ppb
2016-02-109588-905-10202.80 ppb
2016-02-109588-906-10202.90 ppb
2016-02-109588-907-09202.40 ppb
2016-03-099590-003-14258.30 ppb
2016-04-139590-003-13554.10 ppb
2016-05-109588-900-09303.50 ppb
2016-05-109588-901-08503.00 ppb
2016-05-109588-902-01103.10 ppb
2016-05-109588-903-10403.10 ppb
2016-05-109588-904-09103.20 ppb
2016-05-109588-905-10403.50 ppb
2016-05-109588-906-08403.40 ppb
2016-05-109588-907-10003.00 ppb
2016-05-259590-003-13303.50 ppb
2016-07-209590-003-13205.00 ppb
2016-08-093761-900-08504.80 ppb
2016-08-093761-901-08154.50 ppb
2016-08-093761-902-09303.80 ppb
2016-08-093761-903-09503.20 ppb
2016-08-093761-904-08304.00 ppb
2016-08-093761-905-10004.80 ppb
2016-08-093761-906-08003.70 ppb
2016-08-093761-907-09304.30 ppb
2016-08-109590-003-13546.20 ppb
2016-08-179590-003-11004.90 ppb
2016-10-059590-003-13552.60 ppb
2016-11-163761-900-10203.40 ppb
2016-11-163761-901-09203.10 ppb
2016-11-163761-902-10202.70 ppb
2016-11-163761-903-10502.70 ppb
2016-11-163761-904-09353.40 ppb
2016-11-163761-905-10503.30 ppb
2016-11-163761-906-08253.70 ppb
2016-11-163761-907-09403.40 ppb
2016-11-219590-003-12173.60 ppb
2017-01-109590-003-12003.30 ppb
2017-02-159590-003-16105.40 ppb
2017-02-153761-900-10004.70 ppb
2017-02-153761-901-08504.20 ppb
2017-02-153761-902-09504.00 ppb
2017-02-153761-903-10204.40 ppb
2017-02-153761-904-09004.30 ppb
2017-02-153761-905-10404.00 ppb
2017-02-153761-906-08204.00 ppb
2017-02-153761-907-09253.90 ppb
2017-03-159590-003-13402.40 ppb
2017-04-189590-003-1330ND
2017-05-093761-900-0900ND
2017-05-093761-901-0810ND
2017-05-093761-902-0930ND
2017-05-093761-903-0900ND
2017-05-093761-904-0830ND
2017-05-093761-905-0940ND
2017-05-093761-906-0800ND
2017-05-093761-907-0840ND
2017-05-119590-003-1530ND
2017-06-203761-900-09551.20 ppb
2017-06-203761-901-09251.40 ppb
2017-06-203761-902-09201.50 ppb
2017-06-203761-903-09501.40 ppb
2017-06-203761-904-08501.70 ppb
2017-06-203761-905-10151.50 ppb
2017-06-203761-906-07501.70 ppb
2017-06-203761-907-08101.50 ppb
2017-07-059590-003-14301.20 ppb
2017-07-113761-900-0940ND
2017-07-113761-901-0840ND
2017-07-113761-902-1000ND
2017-07-113761-903-0925ND
2017-07-113761-904-0845ND
2017-07-113761-905-1000ND
2017-07-113761-906-0815ND
2017-07-113761-907-0910ND
2017-08-029590-003-13003.90 ppb
2017-08-173761-900-11004.60 ppb
2017-08-173761-901-10104.50 ppb
2017-08-173761-902-11254.60 ppb
2017-08-173761-903-11553.90 ppb
2017-08-173761-904-10454.80 ppb
2017-08-173761-905-11505.30 ppb
2017-08-173761-906-10153.70 ppb
2017-08-173761-907-11204.60 ppb
2017-08-249590-003-09002.50 ppb
2017-09-139590-003-13004.10 ppb
2017-10-109590-003-13554.50 ppb
2017-11-079590-003-14254.30 ppb
2017-11-149590-900-10504.40 ppb
2017-11-149590-901-11303.60 ppb
2017-11-149590-902-09253.60 ppb
2017-11-149590-903-09553.50 ppb
2017-11-149590-904-10253.80 ppb
2017-11-149590-905-09304.60 ppb
2017-11-149590-907-10104.30 ppb
2017-12-059590-906-10254.50 ppb
2017-12-149590-003-13303.30 ppb