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EWG's Tap Water Database — 2021 UPDATE

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Bromoform

Reading Area Water Authority

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

 

201

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
2014ND410ND
2015ND320ND
2016ND320ND
2017ND320ND
2018ND320ND
2019ND320ND

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
2014-01-02140001618ND
2014-01-02140001615ND
2014-01-02140001620ND
2014-01-02140001621ND
2014-01-06140001617ND
2014-01-06140001616ND
2014-01-06140001619ND
2014-01-06140001622ND
2014-04-01140013349ND
2014-04-01140013348ND
2014-04-01140013347ND
2014-04-01140013346ND
2014-04-01140013350ND
2014-04-01140013353ND
2014-04-03140013351ND
2014-04-03140013352ND
2014-07-01140028213ND
2014-07-01140028212ND
2014-07-01140028211ND
2014-07-01140028210ND
2014-07-01140028214ND
2014-07-01140028215ND
2014-07-01140028216ND
2014-07-01140028217ND
2014-10-02140045455ND
2014-10-02140045454ND
2014-10-02140045453ND
2014-10-02140045457ND
2014-10-02140045458ND
2014-10-02140045459ND
2014-10-06140045456ND
2014-10-06140045460ND
2014-11-2114112081ND
2014-11-2114112081ND
2014-11-2414112251-01ND
2014-11-2414112251-02ND
2014-11-2414112251-03ND
2014-11-2414112251-04ND
2014-12-1114121101-01ND
2014-12-1114121101-02ND
2014-12-1114121101-03ND
2015-01-0512315075ND
2015-01-0512315074ND
2015-01-0512315073ND
2015-01-0512315072ND
2015-01-0512315079ND
2015-01-0712315076ND
2015-01-0712315077ND
2015-01-0712315078ND
2015-04-0212660266ND
2015-04-0212660265ND
2015-04-0612660267ND
2015-04-0612660264ND
2015-04-0612660268ND
2015-04-0612660269ND
2015-04-0612660270ND
2015-04-0612660271ND
2015-07-0113042835ND
2015-07-0113042834ND
2015-07-0113042833ND
2015-07-0113042832ND
2015-07-0113042836ND
2015-07-0113042837ND
2015-07-0113042838ND
2015-07-0113042839ND
2015-10-0513419092ND
2015-10-0513419091ND
2015-10-0513419090ND
2015-10-0513419089ND
2015-10-0513419093ND
2015-10-0513419096ND
2015-10-0713419094ND
2015-10-0713419095ND
2016-01-0413782454ND
2016-01-0413782453ND
2016-01-0413782452ND
2016-01-0413782451ND
2016-01-0413782458ND
2016-01-0613782455ND
2016-01-0613782456ND
2016-01-0613782457ND
2016-04-0414138904ND
2016-04-0414138903ND
2016-04-0414138907ND
2016-04-0414138910ND
2016-04-0714138906ND
2016-04-0714138905ND
2016-04-0714138908ND
2016-04-0714138909ND
2016-07-0514609761ND
2016-07-0514609765ND
2016-07-0514609768ND
2016-07-0714609764ND
2016-07-0714609763ND
2016-07-0714609762ND
2016-07-0714609766ND
2016-07-0714609767ND
2016-10-0315111495ND
2016-10-0315111494ND
2016-10-0315111501ND
2016-10-0515111498ND
2016-10-0615111497ND
2016-10-0615111496ND
2016-10-0615111499ND
2016-10-0615111500ND
2017-01-0315551064ND
2017-01-0315551065ND
2017-01-0315551066ND
2017-01-0515551067ND
2017-01-0515551068ND
2017-01-0515551069ND
2017-01-0515551070ND
2017-01-0515551071ND
2017-04-0315975136ND
2017-04-0315975147ND
2017-04-0315975158ND
2017-04-0315975191ND
2017-04-0615975114ND
2017-04-0615975125ND
2017-04-0615975169ND
2017-04-0615975180ND
2017-07-0516449586ND
2017-07-0516449597ND
2017-07-0516449608ND
2017-07-0516449641ND
2017-07-0616449564ND
2017-07-0616449575ND
2017-07-0616449619ND
2017-07-0616449630ND
2017-10-0216914145ND
2017-10-0216914156ND
2017-10-0216914167ND
2017-10-0216914200ND
2017-10-0516914123ND
2017-10-0516914134ND
2017-10-0516914178ND
2017-10-0516914189ND
2018-01-028000469-03ND
2018-01-028000469-04ND
2018-01-028000469-05ND
2018-01-028000469-08ND
2018-01-048000469-01ND
2018-01-048000469-02ND
2018-01-048000469-06ND
2018-01-048000469-07ND
2018-04-028007291-03ND
2018-04-028007291-04ND
2018-04-028007291-05ND
2018-04-028007291-08ND
2018-04-058007291-01ND
2018-04-058007291-02ND
2018-04-058007291-06ND
2018-04-058007291-07ND
2018-07-028018983-03ND
2018-07-028018983-04REND
2018-07-028018983-05REND
2018-07-028018983-08ND
2018-07-058018983-01ND
2018-07-058018983-02ND
2018-07-058018983-06ND
2018-07-058018983-07ND
2018-10-018026912-03ND
2018-10-018026912-04ND
2018-10-018026912-05ND
2018-10-018026912-08ND
2018-10-048026912-01ND
2018-10-048026912-02ND
2018-10-048026912-06ND
2018-10-048026912-07ND
2019-01-028037891-03ND
2019-01-028037891-04ND
2019-01-028037891-05ND
2019-01-028037891-08ND
2019-01-038037891-01ND
2019-01-038037891-02ND
2019-01-038037891-06ND
2019-01-038037891-07ND
2019-04-019008754-03ND
2019-04-019008754-05ND
2019-04-019008754-08ND
2019-04-029008754-04ND
2019-04-049008754-01ND
2019-04-049008754-02ND
2019-04-049008754-06ND
2019-04-049008754-07ND
2019-07-019020550-03ND
2019-07-019020550-04ND
2019-07-019020550-05ND
2019-07-019020550-08ND
2019-07-029020550-01ND
2019-07-029020550-02ND
2019-07-029020550-06ND
2019-07-029020550-07ND
2019-10-019033527-03ND
2019-10-019033527-04ND
2019-10-019033527-05ND
2019-10-019033527-08ND
2019-10-039033527-01ND
2019-10-039033527-02ND
2019-10-039033527-06ND
2019-10-039033527-07ND