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EWG's Tap Water Database — 2021 UPDATE

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Bromoform

Harris County Utility District 6

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)

12

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND170ND
20150.0588 ppb171ND - 1.000 ppb
20160.182 ppb173ND - 1.10 ppb
20170.394 ppb176ND - 1.40 ppb
20180.165 ppb172ND - 1.50 ppb
2019ND170ND

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
2014-02-17AC43114ND
2014-02-17AC43027ND
2014-02-17AC43058ND
2014-02-17AC43034ND
2014-02-17AC43028ND
2014-04-24AC51700ND
2014-04-24AC51715ND
2014-04-24AC51702ND
2014-04-24AC51697ND
2014-07-30AC61656ND
2014-07-30AC61616ND
2014-07-30AC61630ND
2014-07-30AC61619ND
2014-11-24AC72730ND
2014-11-24AC72731ND
2014-11-24AC72732ND
2014-11-24AC72781ND
2015-02-10AC79957ND
2015-02-10AC79880ND
2015-02-10AC799121.000 ppb
2015-02-10AC79913ND
2015-02-10AC79886ND
2015-06-18AC96590ND
2015-06-18AC96595ND
2015-06-18AC96584ND
2015-06-18AC96592ND
2015-09-08AD05815ND
2015-09-08AD05833ND
2015-09-08AD05829ND
2015-09-08AD05822ND
2015-11-10AD13133ND
2015-11-10AD13150ND
2015-11-10AD13134ND
2015-11-10AD13128ND
2016-02-18AD24297ND
2016-02-18AD24262ND
2016-02-18AD24268ND
2016-02-18AD24273ND
2016-02-18AD24271ND
2016-05-31AD38730ND
2016-05-31AD38695ND
2016-05-31AD38729ND
2016-05-31AD38762ND
2016-09-14AD498691.000 ppb
2016-09-14AD49871ND
2016-09-14AD49879ND
2016-10-25AD54571ND
2016-11-16AD58262ND
2016-11-16AD582891.000 ppb
2016-11-16AD58259ND
2016-11-16AD582881.10 ppb
2017-01-24AD66377ND
2017-01-24AD663791.000 ppb
2017-01-24AD66381ND
2017-01-24AD663821.000 ppb
2017-04-17AD79768ND
2017-04-17AD79740ND
2017-04-17AD79738ND
2017-04-17AD79741ND
2017-04-17AD79739ND
2017-08-21AD93535ND
2017-08-21AD93531ND
2017-08-21AD93532ND
2017-08-21AD93534ND
2017-10-25AE024141.40 ppb
2017-10-25AE024241.10 ppb
2017-10-25AE024161.10 ppb
2017-10-25AE024191.10 ppb
2018-02-05AE12199ND
2018-02-05AE12142ND
2018-02-05AE12198ND
2018-02-05AE12157ND
2018-03-12AE17876ND
2018-05-22AE272271.30 ppb
2018-05-22AE27222ND
2018-05-22AE27223ND
2018-05-22AE271991.50 ppb
2018-08-07AE35970ND
2018-08-07AE35964ND
2018-08-07AE35969ND
2018-08-07AE35960ND
2018-10-08AE42798ND
2018-10-08AE42797ND
2018-10-08AE42793ND
2018-10-08AE42794ND
2019-01-25AE51692ND
2019-01-25AE51611ND
2019-01-25AE51612ND
2019-01-25AE51617ND
2019-01-25AE51618ND
2019-04-22AE63153ND
2019-04-22AE63133ND
2019-04-22AE63152ND
2019-04-22AE63131ND
2019-08-08AE77716ND
2019-08-08AE77724ND
2019-08-08AE77695ND
2019-08-08AE77717ND
2019-10-08AE85984ND
2019-10-08AE85988ND
2019-10-08AE85969ND
2019-10-08AE85989ND