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EWG's Tap Water Database — 2021 UPDATE

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Bromoform

Siloam Springs Waterworks

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

 

101

Samples

0

Samples exceeding legal limit (MCL)

4

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
20140.441 ppb174ND - 2.00 ppb
2015ND170ND
2016ND200ND
2017ND170ND
2018ND170ND
2019ND130ND

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
2014-01-3114031004702ND
2014-01-3114031004902ND
2014-01-3114031004802ND
2014-01-3114031005002ND
2014-04-2314114011402ND
2014-04-2314114011502ND
2014-04-2314114011202ND
2014-04-2314114011601ND
2014-04-2314114011302ND
2014-07-22142050020021.80 ppb
2014-07-22142050018021.80 ppb
2014-07-22142050019022.00 ppb
2014-07-22142050021021.90 ppb
2014-10-2914304003202ND
2014-10-2914304003302ND
2014-10-2914304003102ND
2014-10-2914304003402ND
2015-01-2715029002202ND
2015-01-2715029002402ND
2015-01-2715029002502ND
2015-01-2715029002302ND
2015-04-0815099001309ND
2015-04-2815120009502ND
2015-04-2815120009202ND
2015-04-2815120009302ND
2015-04-2815120009402ND
2015-07-3015212001202ND
2015-07-3015212001302ND
2015-07-3015212001102ND
2015-07-3015212001002ND
2015-10-2115296003802ND
2015-10-2115296004102ND
2015-10-2115296004002ND
2015-10-2115296003902ND
2016-02-0116036007802ND
2016-02-0116036007702ND
2016-02-0116036007602ND
2016-02-0116036007502ND
2016-04-0616098008301ND
2016-04-2716119010902ND
2016-04-2716119010602ND
2016-04-2716119010702ND
2016-04-2716119010802ND
2016-05-1116133012002ND
2016-06-2216175002701ND
2016-07-2616210006602ND
2016-07-2616210006402ND
2016-07-2616210006702ND
2016-07-2716210006502ND
2016-08-0116217006901ND
2016-10-2516301008102ND
2016-10-2516301007902ND
2016-10-2516301007802ND
2016-10-2516301008002ND
2017-02-0117033014002ND
2017-02-0117033013802ND
2017-02-0117033013902ND
2017-02-0117033014102ND
2017-04-1817110001601ND
2017-05-0317125001002ND
2017-05-0317125001102ND
2017-05-0317125001202ND
2017-05-0317125001302ND
2017-07-2517208004302ND
2017-07-2517208004502ND
2017-07-2517208004202ND
2017-07-2517208004402ND
2017-10-2317299007502ND
2017-10-2317299007402ND
2017-10-2317299007302ND
2017-10-2317299007202ND
2018-02-0818040002002ND
2018-02-0818040002102ND
2018-02-0818040002202ND
2018-02-0818040002302ND
2018-05-0318124000602ND
2018-05-0318124000702ND
2018-05-0318124000502ND
2018-05-0318124000802ND
2018-05-1518137013209ND
2018-08-0818221007302ND
2018-08-0818221007102ND
2018-08-0818221006902ND
2018-08-0818221007002ND
2018-10-3018305006302ND
2018-10-3018305006202ND
2018-10-3018305006002ND
2018-10-3018305006102ND
2019-01-3019031013202ND
2019-01-3019031013102ND
2019-01-3019031013302ND
2019-01-3019031013002ND
2019-04-0219093000901ND
2019-04-2419115015202ND
2019-04-2419115015402ND
2019-04-2419115015302ND
2019-04-2419115015102ND
2019-07-2319205002702ND
2019-07-2319205002902ND
2019-07-2319205002602ND
2019-07-2319205002802ND