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EWG's Tap Water Database — 2021 UPDATE

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Bromoform

Town of Tullos Water System

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

 

102

Samples

0

Samples exceeding legal limit (MCL)

70

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.945 ppb2210ND - 3.30 ppb
20152.38 ppb1612ND - 4.60 ppb
20160.743 ppb1610ND - 1.80 ppb
20171.19 ppb1612ND - 2.10 ppb
20187.01 ppb1614ND - 44.9 ppb
20190.773 ppb1612ND - 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
2014-03-18L0040924-011.40 ppb
2014-03-18L0040924-023.30 ppb
2014-03-18L0040924-011.40 ppb
2014-03-18L0040924-023.30 ppb
2014-06-13351423230012.10 ppb
2014-06-13351423230021.60 ppb
2014-06-13351423230012.10 ppb
2014-06-13351423230021.60 ppb
2014-09-10L0048035-012.00 ppb
2014-09-10L0048035-02ND
2014-09-10L0048035-012.00 ppb
2014-09-10L0048035-02ND
2014-10-28AD98978ND
2014-10-28AD98979ND
2014-10-28AD98980ND
2014-10-28AD98978ND
2014-10-28AD98979ND
2014-10-28AD98980ND
2014-12-11L0051822-01ND
2014-12-11L0051822-02ND
2014-12-11L0051822-01ND
2014-12-11L0051822-02ND
2015-03-05LA4324-13.80 ppb
2015-03-05LA4324-24.60 ppb
2015-03-05LA4324-13.80 ppb
2015-03-05LA4324-24.60 ppb
2015-06-0435191798001ND
2015-06-0435191798002ND
2015-06-0435191798001ND
2015-06-0435191798002ND
2015-09-08LA11621-14.60 ppb
2015-09-08LA11621-23.20 ppb
2015-09-08LA11621-14.60 ppb
2015-09-08LA11621-23.20 ppb
2015-12-15LA15159-11.40 ppb
2015-12-15LA15159-21.40 ppb
2015-12-15LA15159-11.40 ppb
2015-12-15LA15159-21.40 ppb
2016-03-04LA17949-1ND
2016-03-04LA17949-2ND
2016-03-04LA17949-1ND
2016-03-04LA17949-2ND
2016-06-06LA21443-11.80 ppb
2016-06-06LA21443-21.40 ppb
2016-06-06LA21443-11.80 ppb
2016-06-06LA21443-21.40 ppb
2016-09-26LA25834-10.970 ppb
2016-09-26LA25834-20.570 ppb
2016-09-26LA25834-10.970 ppb
2016-09-26LA25834-20.570 ppb
2016-12-19LA28906-11.20 ppb
2016-12-19LA28906-2ND
2016-12-19LA28906-11.20 ppb
2016-12-19LA28906-2ND
2017-03-27353032550031.30 ppb
2017-03-2735303255004ND
2017-03-27353032550031.30 ppb
2017-03-2735303255004ND
2017-06-13353200620031.40 ppb
2017-06-13353200620041.30 ppb
2017-06-13353200620031.40 ppb
2017-06-13353200620041.30 ppb
2017-09-25353387850052.10 ppb
2017-09-25353387850062.10 ppb
2017-09-25353387850052.10 ppb
2017-09-25353387850062.10 ppb
2017-12-1935364468001ND
2017-12-19353644680021.30 ppb
2017-12-1935364468001ND
2017-12-19353644680021.30 ppb
2018-03-20353813530015.40 ppb
2018-03-203538135300244.9 ppb
2018-03-20353813530015.40 ppb
2018-03-203538135300244.9 ppb
2018-06-26354008510011.30 ppb
2018-06-26354008510021.70 ppb
2018-06-26354008510011.30 ppb
2018-06-26354008510021.70 ppb
2018-09-11354172880010.850 ppb
2018-09-1135417288002ND
2018-09-11354172880010.850 ppb
2018-09-1135417288002ND
2018-12-17354381410010.950 ppb
2018-12-17354381410021.000 ppb
2018-12-17354381410010.950 ppb
2018-12-17354381410021.000 ppb
2019-03-19354563160011.10 ppb
2019-03-1935456316002ND
2019-03-19354563160011.10 ppb
2019-03-1935456316002ND
2019-06-24354783540011.000 ppb
2019-06-24354783540020.990 ppb
2019-06-24354783540011.000 ppb
2019-06-24354783540020.990 ppb
2019-09-17354985950011.20 ppb
2019-09-17354985950021.20 ppb
2019-09-17354985950011.20 ppb
2019-09-17354985950021.20 ppb
2019-12-1135518272001ND
2019-12-11355182720020.690 ppb
2019-12-1135518272001ND
2019-12-11355182720020.690 ppb