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EWG's Tap Water Database — 2021 UPDATE

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Bromoform

Southwest Milam Water Supply Corporation

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

 

30

Samples

0

Samples exceeding legal limit (MCL)

12

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.667 ppb32ND - 1.40 ppb
20150.425 ppb41ND - 1.70 ppb
20160.250 ppb41ND - 1.000 ppb
2017ND40ND
2018ND40ND
20191.51 ppb118ND - 3.70 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
2014-02-04AC411540.600 ppb
2014-02-04AC411521.40 ppb
2014-07-10AC59287ND
2015-05-07AC91000ND
2015-05-07AC91057ND
2015-05-07AC91065ND
2015-05-07AC910591.70 ppb
2016-07-18AD44531ND
2016-11-07AD56861ND
2016-11-07AD568671.000 ppb
2016-11-07AD56857ND
2017-08-03AD92047ND
2017-11-01AE03224ND
2017-11-01AE03214ND
2017-11-01AE03222ND
2018-08-21AE37861ND
2018-10-08AE42808ND
2018-10-08AE42806ND
2018-10-08AE42804ND
2019-05-14AE66193ND
2019-07-02AE731341.000 ppb
2019-07-02AE731361.000 ppb
2019-09-11AE829943.70 ppb
2019-09-11AE829991.50 ppb
2019-09-11AE830052.70 ppb
2019-09-11AE830031.20 ppb
2019-10-17AE86875ND
2019-10-17AE86877ND
2019-10-17AE868793.00 ppb
2019-10-17AE868782.50 ppb