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EWG's Tap Water Database — 2021 UPDATE

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Bromoform

City of Roma

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

 

102

Samples

0

Samples exceeding legal limit (MCL)

54

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20142.59 ppb1716ND - 4.70 ppb
20151.96 ppb1715ND - 3.00 ppb
20160.335 ppb174ND - 1.90 ppb
20170.429 ppb174ND - 2.80 ppb
20180.253 ppb173ND - 1.80 ppb
20192.78 ppb1712ND - 6.80 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
2014-02-26AC447322.70 ppb
2014-02-26AC447304.00 ppb
2014-02-26AC446993.10 ppb
2014-02-26AC447032.50 ppb
2014-06-10AC564592.20 ppb
2014-06-10AC564511.80 ppb
2014-06-10AC564531.50 ppb
2014-06-10AC564321.30 ppb
2014-08-18AC63943ND
2014-08-18AC641474.40 ppb
2014-08-18AC641621.60 ppb
2014-08-18AC641632.00 ppb
2014-08-18AC641604.70 ppb
2014-12-03AC735583.10 ppb
2014-12-03AC735552.00 ppb
2014-12-03AC735532.50 ppb
2014-12-03AC735274.60 ppb
2015-02-11AC801802.60 ppb
2015-02-11AC801832.70 ppb
2015-02-11AC801811.60 ppb
2015-02-11AC802033.00 ppb
2015-06-08AC948512.00 ppb
2015-06-08AC948612.50 ppb
2015-06-08AC948502.10 ppb
2015-06-08AC94870ND
2015-09-24AD08494ND
2015-09-24AD084602.40 ppb
2015-09-24AD084611.20 ppb
2015-09-24AD084641.80 ppb
2015-09-24AD084632.90 ppb
2015-11-05AD127682.60 ppb
2015-11-05AD127671.10 ppb
2015-11-05AD127642.30 ppb
2015-11-05AD127592.60 ppb
2016-02-25AD25728ND
2016-02-25AD25695ND
2016-02-25AD25727ND
2016-02-25AD25681ND
2016-05-12AD36588ND
2016-05-12AD36589ND
2016-05-12AD36595ND
2016-05-12AD36585ND
2016-09-20AD50389ND
2016-09-20AD503481.50 ppb
2016-09-20AD50352ND
2016-09-20AD503501.10 ppb
2016-09-20AD503511.90 ppb
2016-10-27AD55114ND
2016-10-27AD55115ND
2016-10-27AD55094ND
2016-10-27AD550951.20 ppb
2017-03-10AD746351.40 ppb
2017-03-10AD74640ND
2017-03-10AD74643ND
2017-03-10AD746372.80 ppb
2017-04-27AD81456ND
2017-04-27AD81460ND
2017-04-27AD81453ND
2017-04-27AD814612.10 ppb
2017-08-03AD92172ND
2017-08-03AD92133ND
2017-08-03AD92125ND
2017-08-03AD92141ND
2017-08-03AD92131ND
2017-11-09AE04315ND
2017-11-09AE04313ND
2017-11-09AE04310ND
2017-11-09AE043121.000 ppb
2018-03-09AE17822ND
2018-03-09AE17819ND
2018-03-09AE17823ND
2018-03-09AE17813ND
2018-05-17AE267641.20 ppb
2018-05-17AE26736ND
2018-05-17AE26759ND
2018-05-17AE26760ND
2018-08-30AE38958ND
2018-08-30AE389191.80 ppb
2018-08-30AE38914ND
2018-08-30AE389171.30 ppb
2018-08-30AE38922ND
2018-12-03AE47766ND
2018-12-03AE47751ND
2018-12-03AE47760ND
2018-12-03AE47762ND
2019-02-07AE53426ND
2019-02-07AE53436ND
2019-02-07AE53419ND
2019-02-07AE53427ND
2019-06-10AE699841.30 ppb
2019-06-10AE69967ND
2019-06-10AE699701.60 ppb
2019-06-10AE699691.10 ppb
2019-09-13AE836442.10 ppb
2019-09-13AE835316.70 ppb
2019-09-13AE835245.20 ppb
2019-09-13AE835266.80 ppb
2019-09-13AE835285.00 ppb
2019-12-06AE918632.60 ppb
2019-12-06AE918616.10 ppb
2019-12-06AE918643.10 ppb
2019-12-06AE918675.60 ppb