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EWG's Tap Water Database — 2021 UPDATE

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Bromoform

Sylamore Valley

NOTE: Sylamore Valley purchases water from Mountain View which is required to test for bromoform. Sample information shown below was taken by Mountain View.

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

 

54

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND80ND
2015ND80ND
2016ND80ND
2017ND80ND
2018ND80ND
2019ND60ND

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

NOTE: Sylamore Valley purchases water from Mountain View which is required to test for bromoform. Sample information shown below was taken by Mountain View.

Date Lab ID Result
2014-01-0814009000702ND
2014-06-1714170002902ND
2014-07-0814190004902ND
2014-08-2514239002502ND
2014-08-2514239002401ND
2014-10-1414288002502ND
2014-10-1414288002602ND
2015-01-1215015001402ND
2015-01-1215015001302ND
2015-04-1315106004902ND
2015-04-2215113004101ND
2015-07-1315196003902ND
2015-07-1315196001709ND
2015-07-1315196003802ND
2015-10-1415289006202ND
2015-10-1415289006302ND
2016-01-1316015010402ND
2016-01-1316015010502ND
2016-04-1116105008502ND
2016-04-1116105008602ND
2016-07-1116196015802ND
2016-07-1116196015902ND
2016-07-1116196015501ND
2016-10-1016287008702ND
2016-10-1016287008602ND
2017-01-0917012008502ND
2017-01-0917012008402ND
2017-04-1017103000902ND
2017-04-1017103001002ND
2017-07-1017194007802ND
2017-07-1017194007902ND
2017-07-1017194008001ND
2017-10-0917285010102ND
2017-10-0917285010002ND
2018-01-0818010002401ND
2018-01-0818010002301ND
2018-04-0918102004002ND
2018-04-0918102003902ND
2018-07-0918193009802ND
2018-07-0918193009902ND
2018-09-0418249004109ND
2018-09-1918262001201ND
2018-10-0818284006902ND
2018-10-0818284006802ND
2019-01-1419016000802ND
2019-01-1419016000702ND
2019-04-0919100001602ND
2019-04-0919100001502ND
2019-07-2919212005402ND
2019-07-2919212005502ND
2019-07-2919212004901ND
2019-10-0819282001302ND
2019-10-0819282001402ND
2019-10-0819282001501ND