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EWG's Tap Water Database — 2019 UPDATE

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Bromoform

Calcasieu Parish WW District 9 Carlyss

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.

 

96

Samples

0

Samples exceeding legal limit (MCL)

70

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012N/A00N/A
20132.17 ppb2420ND - 4.93 ppb
20140.811 ppb2814ND - 2.21 ppb
20151.03 ppb3224ND - 2.00 ppb
20161.06 ppb880.650 ppb - 1.50 ppb
20171.15 ppb441.10 ppb - 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
2013-04-09S13040114B1.33 ppb
2013-04-09S13040117BND
2013-04-09S13040116BND
2013-04-09S13040117BND
2013-04-09S13010115B1.65 ppb
2013-04-09S13040114B1.33 ppb
2013-04-09S13040116BND
2013-04-09S13010115B1.65 ppb
2013-07-01S13070040B2.84 ppb
2013-07-01S13070039B2.27 ppb
2013-07-01S13070038B2.17 ppb
2013-07-01S13070037B2.40 ppb
2013-07-01S13070038B2.17 ppb
2013-07-01S13070037B2.40 ppb
2013-07-01S13070040B2.84 ppb
2013-07-01S13070039B2.27 ppb
2013-10-08S13100177B3.76 ppb
2013-10-08S13100179B4.93 ppb
2013-10-08S13100178B2.43 ppb
2013-10-08S13100179B4.93 ppb
2013-10-08S13100180B2.26 ppb
2013-10-08S13100178B2.43 ppb
2013-10-08S13100177B3.76 ppb
2013-10-08S13100180B2.26 ppb
2014-02-24AD89324ND
2014-02-24AD89324ND
2014-03-31AD90300ND
2014-03-31AD90300ND
2014-04-08S14040201B1.53 ppb
2014-04-08S14040199B2.12 ppb
2014-04-08S14040200BND
2014-04-08S14040202B2.21 ppb
2014-04-08S14040201B1.53 ppb
2014-04-08S14040200BND
2014-04-08S14040199B2.12 ppb
2014-04-08S14040202B2.21 ppb
2014-07-03351455950011.10 ppb
2014-07-0335145595002ND
2014-07-03351455950011.10 ppb
2014-07-0335145595002ND
2014-07-03351455950031.40 ppb
2014-07-0335145595004ND
2014-07-03351455950031.40 ppb
2014-07-0335145595004ND
2014-10-01L0048867-04ND
2014-10-01L0048867-011.40 ppb
2014-10-01L0048867-031.60 ppb
2014-10-01L0048867-031.60 ppb
2014-10-01L0048867-04ND
2014-10-01L0048867-02ND
2014-10-01L0048867-011.40 ppb
2014-10-01L0048867-02ND
2015-01-06L0052756-02ND
2015-01-06L0052756-011.40 ppb
2015-01-06L0052756-04ND
2015-01-06L0052756-031.40 ppb
2015-01-06L0052756-04ND
2015-01-06L0052756-011.40 ppb
2015-01-06L0052756-02ND
2015-01-06L0052756-031.40 ppb
2015-04-07LA5868-41.10 ppb
2015-04-07LA5868-41.10 ppb
2015-04-07LA5868-31.50 ppb
2015-04-07LA5868-20.970 ppb
2015-04-07LA5868-11.60 ppb
2015-04-07LA5868-11.60 ppb
2015-04-07LA5868-31.50 ppb
2015-04-07LA5868-20.970 ppb
2015-07-07351975490031.30 ppb
2015-07-0735197549004ND
2015-07-07351975490011.20 ppb
2015-07-0735197549002ND
2015-07-0735197549004ND
2015-07-07351975490031.30 ppb
2015-07-0735197549002ND
2015-07-07351975490011.20 ppb
2015-10-06LA12620-11.70 ppb
2015-10-06LA12620-21.30 ppb
2015-10-06LA12620-32.00 ppb
2015-10-06LA12620-41.000 ppb
2015-10-06LA12620-32.00 ppb
2015-10-06LA12620-41.000 ppb
2015-10-06LA12620-11.70 ppb
2015-10-06LA12620-21.30 ppb
2016-07-01LA22823-31.50 ppb
2016-07-01LA22823-40.650 ppb
2016-07-01LA22823-31.50 ppb
2016-07-01LA22823-20.790 ppb
2016-07-01LA22823-20.790 ppb
2016-07-01LA22823-11.30 ppb
2016-07-01LA22823-11.30 ppb
2016-07-01LA22823-40.650 ppb
2017-07-06353227130101.20 ppb
2017-07-06353227130091.10 ppb
2017-07-06353227130091.10 ppb
2017-07-06353227130101.20 ppb