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EWG's Tap Water Database — 2021 UPDATE

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Bromoform

West Baton Rouge Water Works District 2

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

 

92

Samples

0

Samples exceeding legal limit (MCL)

90

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
201410.5 ppb4410.00 ppb - 11.0 ppb
201513.0 ppb448.00 ppb - 18.0 ppb
201613.0 ppb4411.0 ppb - 15.0 ppb
201712.3 ppb16165.60 ppb - 21.1 ppb
201810.2 ppb3230ND - 23.5 ppb
201912.2 ppb32320.650 ppb - 19.9 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
2014-07-01680-102921-411.0 ppb
2014-07-01680-102921-310.00 ppb
2014-07-01680-102921-411.0 ppb
2014-07-01680-102921-310.00 ppb
2015-07-18680-114711-318.0 ppb
2015-07-18680-114711-318.0 ppb
2015-07-18680-114711-48.00 ppb
2015-07-18680-114711-48.00 ppb
2016-07-12680-127504-211.0 ppb
2016-07-12680-127504-415.0 ppb
2016-07-12680-127504-415.0 ppb
2016-07-12680-127504-211.0 ppb
2017-07-13353241390038.60 ppb
2017-07-13353241390029.70 ppb
2017-07-13353241390019.10 ppb
2017-07-13353241390045.60 ppb
2017-07-13353241390045.60 ppb
2017-07-13353241390038.60 ppb
2017-07-13353241390029.70 ppb
2017-07-13353241390019.10 ppb
2017-10-063534063500315.3 ppb
2017-10-063534063500315.3 ppb
2017-10-063534063500218.9 ppb
2017-10-063534063500121.1 ppb
2017-10-06353406350049.80 ppb
2017-10-06353406350049.80 ppb
2017-10-063534063500218.9 ppb
2017-10-063534063500121.1 ppb
2018-01-11353683510028.80 ppb
2018-01-113536835100313.3 ppb
2018-01-11353683510028.80 ppb
2018-01-113536835100111.1 ppb
2018-01-11353683510041.70 ppb
2018-01-11353683510041.70 ppb
2018-01-113536835100313.3 ppb
2018-01-113536835100111.1 ppb
2018-04-05353845200038.00 ppb
2018-04-05353845200021.20 ppb
2018-04-0535384520004ND
2018-04-05353845200038.00 ppb
2018-04-05353845200021.20 ppb
2018-04-05353845200018.30 ppb
2018-04-0535384520004ND
2018-04-05353845200018.30 ppb
2018-07-053540261000217.3 ppb
2018-07-053540261000417.5 ppb
2018-07-053540261000323.5 ppb
2018-07-053540261000217.3 ppb
2018-07-053540261000115.7 ppb
2018-07-053540261000323.5 ppb
2018-07-053540261000115.7 ppb
2018-07-053540261000417.5 ppb
2018-10-11354240310046.50 ppb
2018-10-11354240310039.00 ppb
2018-10-113542403100212.7 ppb
2018-10-11354240310019.00 ppb
2018-10-11354240310046.50 ppb
2018-10-11354240310039.00 ppb
2018-10-113542403100212.7 ppb
2018-10-11354240310019.00 ppb
2019-01-103544177500310.2 ppb
2019-01-10354417750041.000 ppb
2019-01-10354417750041.000 ppb
2019-01-103544177500310.2 ppb
2019-01-10354417750026.40 ppb
2019-01-10354417750017.40 ppb
2019-01-10354417750026.40 ppb
2019-01-10354417750017.40 ppb
2019-04-033545906100415.5 ppb
2019-04-033545906100114.0 ppb
2019-04-033545906100415.5 ppb
2019-04-033545906100315.3 ppb
2019-04-033545906100218.1 ppb
2019-04-033545906100114.0 ppb
2019-04-033545906100218.1 ppb
2019-04-033545906100315.3 ppb
2019-07-16354835360040.650 ppb
2019-07-16354835360040.650 ppb
2019-07-163548353600311.3 ppb
2019-07-16354835360029.80 ppb
2019-07-163548353600118.7 ppb
2019-07-163548353600118.7 ppb
2019-07-16354835360029.80 ppb
2019-07-163548353600311.3 ppb
2019-10-103550461500116.4 ppb
2019-10-103550461500412.1 ppb
2019-10-103550461500318.2 ppb
2019-10-103550461500219.9 ppb
2019-10-103550461500116.4 ppb
2019-10-103550461500412.1 ppb
2019-10-103550461500318.2 ppb
2019-10-103550461500219.9 ppb