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EWG's Tap Water Database — 2021 UPDATE

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Bromoform

Bellflower Home Gardens Water Company

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

 

48

Samples

0

Samples exceeding legal limit (MCL)

21

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20141.21 ppb86ND - 2.50 ppb
20150.150 ppb81ND - 1.20 ppb
20160.550 ppb63ND - 1.20 ppb
20170.820 ppb107ND - 1.50 ppb
20180.450 ppb82ND - 2.20 ppb
20190.275 ppb82ND - 1.20 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
2014-03-179588-801-1431ND
2014-03-179588-800-1425ND
2014-06-029588-801-13251.20 ppb
2014-06-029588-800-13361.20 ppb
2014-09-089588-801-12101.90 ppb
2014-09-089588-800-12211.60 ppb
2014-12-019588-801-11422.50 ppb
2014-12-019588-800-11541.30 ppb
2015-03-169588-800-1241ND
2015-03-169588-801-1230ND
2015-06-019588-800-14301.20 ppb
2015-06-019588-801-1415ND
2015-09-029588-800-1122ND
2015-09-029588-801-1110ND
2015-12-219588-800-1437ND
2015-12-219588-801-1425ND
2016-03-259588-800-1040ND
2016-03-259588-801-1025ND
2016-06-069588-800-12571.10 ppb
2016-06-069588-801-12441.20 ppb
2016-09-199588-800-1200ND
2016-09-199588-801-11521.000 ppb
2017-01-099588-800-1036ND
2017-01-099588-801-1030ND
2017-04-109588-800-10381.000 ppb
2017-04-109588-801-10301.10 ppb
2017-05-169588-800-11161.000 ppb
2017-05-169588-802-1108ND
2017-07-039588-800-12281.20 ppb
2017-07-039588-802-12351.20 ppb
2017-10-029588-800-09501.50 ppb
2017-10-029588-801-09401.20 ppb
2018-01-089588-801-0945ND
2018-01-089588-800-09551.40 ppb
2018-04-029588-801-1130ND
2018-04-029588-800-1137ND
2018-07-029588-801-1540ND
2018-07-029588-800-15532.20 ppb
2018-10-159588-801-1048ND
2018-10-159588-800-1056ND
2019-01-079588-801-1115ND
2019-01-079588-800-1125ND
2019-04-159588-801-1045ND
2019-04-159588-800-10401.000 ppb
2019-07-159588-801-0940ND
2019-07-159588-800-0935ND
2019-10-019588-801-1120ND
2019-10-019588-800-11301.20 ppb