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EWG's Tap Water Database — 2021 UPDATE

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Bromoform

Aqua Pa Roaring Creek Division

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

 

63

Samples

0

Samples exceeding legal limit (MCL)

5

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014N/A00N/A
2015N/A00N/A
2016N/A00N/A
2017ND160ND
20180.148 ppb316ND - 0.900 ppb
2019ND160ND

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
2017-02-1315717852ND
2017-02-1315717816ND
2017-02-1315717828ND
2017-02-1315717840ND
2017-05-1016169562ND
2017-05-1016169550ND
2017-05-1016169574ND
2017-05-1016169586ND
2017-08-1416639262ND
2017-08-1416639257ND
2017-08-1416639255ND
2017-08-1416639268ND
2017-11-1317086286ND
2017-11-1317086289ND
2017-11-1317086298ND
2017-11-1317086292ND
2018-02-12AF762240.900 ppb
2018-02-12AF76223ND
2018-02-12AF76222ND
2018-02-12AF76221ND
2018-05-11AF839990.800 ppb
2018-05-11AF83998ND
2018-05-11AF84000ND
2018-05-11AF84001ND
2018-08-13AF92690ND
2018-08-13AF92691ND
2018-08-13AF92689ND
2018-08-13AF92692ND
2018-09-27AF97135ND
2018-09-27AF97137ND
2018-09-27AF971340.900 ppb
2018-09-27AF97136ND
2018-09-28AF97140ND
2018-09-28AF97141ND
2018-09-28AF97139ND
2018-09-28AF971380.500 ppb
2018-09-29AF97242ND
2018-09-29AF97241ND
2018-09-29AF97240ND
2018-09-29AF972430.700 ppb
2018-09-30AF97292ND
2018-09-30AF97245ND
2018-09-30AF97246ND
2018-11-14AG01653ND
2018-11-14AG01651ND
2018-11-14AG01652ND
2018-11-14AG016540.800 ppb
2019-02-12AG08735ND
2019-02-12AG08734ND
2019-02-12AG08733ND
2019-02-12AG08736ND
2019-05-14AG17715ND
2019-05-14AG17713ND
2019-05-14AG17712ND
2019-05-14AG17714ND
2019-08-13AG28018ND
2019-08-13AG28015ND
2019-08-13AG28016ND
2019-08-13AG28017ND
2019-11-12AG39359ND
2019-11-12AG39358ND
2019-11-12AG39357ND
2019-11-12AG39356ND