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EWG's Tap Water Database — 2019 UPDATE

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Bromoform

Forrest City 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.

 

79

Samples

0

Samples exceeding legal limit (MCL)

25

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20120.180 ppb101ND - 1.80 ppb
20130.928 ppb146ND - 7.70 ppb
20142.53 ppb219ND - 20.5 ppb
20152.15 ppb104ND - 16.8 ppb
20163.29 ppb112ND - 22.4 ppb
20171.96 ppb134ND - 15.8 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
2012-01-2512026006001ND
2012-01-2512026006101ND
2012-06-1312166003001ND
2012-06-1312166003101ND
2012-06-1312166002901ND
2012-08-2712242003701ND
2012-08-27122420033021.80 ppb
2012-08-2712242003801ND
2012-10-0212278013901ND
2012-10-0212278014001ND
2013-02-1213044000801ND
2013-02-1213044000901ND
2013-04-0113094007201ND
2013-04-01130940071010.500 ppb
2013-04-0113094007301ND
2013-08-27132410003090.690 ppb
2013-08-27132410009021.80 ppb
2013-08-2713241000209ND
2013-11-0513310000809ND
2013-11-0513310000909ND
2013-11-26133310046021.20 ppb
2013-11-26133310047027.70 ppb
2013-11-26133310049021.10 ppb
2013-11-2613331004802ND
2014-02-0514038000701ND
2014-02-0514038000602ND
2014-03-17140790011021.20 ppb
2014-03-17140790013021.30 ppb
2014-03-17140790010021.60 ppb
2014-03-17140790012026.30 ppb
2014-04-2314114014301ND
2014-04-2314114013809ND
2014-04-2314114014002ND
2014-06-251417700880218.0 ppb
2014-06-25141770089021.50 ppb
2014-06-2514177009002ND
2014-06-25141770091021.20 ppb
2014-08-2714240001201ND
2014-08-2714240002502ND
2014-08-2714240000702ND
2014-08-2714240002902ND
2014-08-271424000310220.5 ppb
2014-08-27142400030021.50 ppb
2014-11-2414330003701ND
2014-11-2414330003801ND
2015-01-1215015008501ND
2015-01-1215015008601ND
2015-04-0815099007201ND
2015-04-08150990099023.20 ppb
2015-04-0815099007301ND
2015-08-24152380006020.600 ppb
2015-08-241523800080216.8 ppb
2015-08-2415238000701ND
2015-12-01153370048010.900 ppb
2015-12-0115337004901ND
2016-02-1616049005401ND
2016-02-1616049005301ND
2016-04-2016112007601ND
2016-04-2016112007501ND
2016-06-081616100420213.8 ppb
2016-07-061618901600222.4 ppb
2016-07-0616189013609ND
2016-07-0616189013509ND
2016-08-2416237004701ND
2016-10-0316279003108ND
2016-10-0316279003208ND
2017-01-1617019008401ND
2017-01-1617019008501ND
2017-04-0317096000101ND
2017-04-03170960002091.80 ppb
2017-04-03170960047025.90 ppb
2017-04-0317096004801ND
2017-07-0317187007001ND
2017-07-0317187007101ND
2017-07-0317187007202ND
2017-07-041718700610215.8 ppb
2017-10-0317278005801ND
2017-10-0317278005701ND
2017-10-03172780056021.93 ppb