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EWG's Tap Water Database — 2021 UPDATE

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Bromoform

Friendship Distribution Water

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

 

129

Samples

0

Samples exceeding legal limit (MCL)

10

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014N/A00N/A
2015ND20ND
2016ND430ND
20170.210 ppb769ND - 5.00 ppb
2018ND40ND
20190.350 ppb41ND - 1.40 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 Result
2015-09-09ND
2015-11-09ND
2016-01-13ND
2016-04-07ND
2016-06-29ND
2016-08-04ND
2016-08-16ND
2016-08-22ND
2016-09-01ND
2016-09-06ND
2016-09-12ND
2016-09-15ND
2016-09-19ND
2016-09-22ND
2016-09-26ND
2016-09-29ND
2016-10-03ND
2016-10-06ND
2016-10-12ND
2016-10-13ND
2016-10-14ND
2016-10-17ND
2016-10-18ND
2016-10-19ND
2016-10-20ND
2016-10-25ND
2016-10-27ND
2016-10-31ND
2016-11-02ND
2016-11-08ND
2016-11-10ND
2016-11-15ND
2016-11-17ND
2016-11-22ND
2016-11-24ND
2016-11-29ND
2016-12-01ND
2016-12-06ND
2016-12-08ND
2016-12-13ND
2016-12-15ND
2016-12-20ND
2016-12-22ND
2016-12-27ND
2016-12-29ND
2017-01-03ND
2017-01-05ND
2017-01-10ND
2017-01-12ND
2017-01-17ND
2017-01-19ND
2017-01-24ND
2017-01-26ND
2017-01-31ND
2017-02-02ND
2017-02-04ND
2017-02-09ND
2017-02-14ND
2017-02-16ND
2017-02-21ND
2017-02-23ND
2017-03-02ND
2017-03-02ND
2017-03-14ND
2017-03-16ND
2017-03-21ND
2017-03-23ND
2017-03-28ND
2017-03-30ND
2017-04-04ND
2017-04-06ND
2017-04-11ND
2017-04-13ND
2017-04-18ND
2017-04-20ND
2017-04-25ND
2017-04-270.579 ppb
2017-05-02ND
2017-05-04ND
2017-05-09ND
2017-05-11ND
2017-05-16ND
2017-05-182.54 ppb
2017-05-23ND
2017-05-25ND
2017-05-300.894 ppb
2017-06-01ND
2017-06-06ND
2017-06-08ND
2017-06-13ND
2017-06-15ND
2017-06-20ND
2017-06-22ND
2017-06-27ND
2017-06-29ND
2017-07-041.74 ppb
2017-07-06ND
2017-07-11ND
2017-07-13ND
2017-07-18ND
2017-07-200.568 ppb
2017-07-31ND
2017-08-02ND
2017-08-15ND
2017-08-171.17 ppb
2017-08-22ND
2017-08-241.04 ppb
2017-08-29ND
2017-08-31ND
2017-09-12ND
2017-09-142.41 ppb
2017-09-19ND
2017-09-215.00 ppb
2017-09-26ND
2017-09-28ND
2017-10-02ND
2017-10-02ND
2017-10-10ND
2017-10-12ND
2017-10-17ND
2017-10-19ND
2018-03-29ND
2018-06-07ND
2018-09-13ND
2018-11-15ND
2019-01-24ND
2019-04-18ND
2019-08-081.40 ppb
2019-10-17ND