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EWG's Tap Water Database — 2021 UPDATE

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Bromoform

Matagorda Dunes Subdivision

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

 

24

Samples

0

Samples exceeding legal limit (MCL)

9

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20142.25 ppb221.70 ppb - 2.80 ppb
20150.600 ppb21ND - 1.20 ppb
20162.50 ppb31ND - 7.50 ppb
20171.65 ppb221.20 ppb - 2.10 ppb
201811.6 ppb63ND - 35.7 ppb
2019ND90ND

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
2014-06-25AC580062.80 ppb
2014-06-25AC580231.70 ppb
2015-07-23AD00741ND
2015-07-23AD007851.20 ppb
2016-05-31AD38802ND
2016-05-31AD38763ND
2016-09-29AD520667.50 ppb
2017-05-25AD857051.20 ppb
2017-05-25AD857362.10 ppb
2018-05-29AE2787535.7 ppb
2018-05-29AE2789433.0 ppb
2018-07-18AE33749ND
2018-07-18AE33720ND
2018-11-14AE46047ND
2018-11-14AE460351.000 ppb
2019-02-25AE55596ND
2019-02-25AE55597ND
2019-02-25AE55683ND
2019-06-17AE70831ND
2019-06-17AE70832ND
2019-08-26AE80555ND
2019-08-26AE80554ND
2019-12-11AE92131ND
2019-12-11AE92109ND