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EWG's Tap Water Database — 2019 UPDATE

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Bromoform

Mount Morris, City of

NOTE: Mount Morris, City of purchases water from Genesee County Water System which is required to test for bromoform. Sample information shown below was taken by Genesee County Water System.

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.

 

30

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND30ND
20130.167 ppb31ND - 0.500 ppb
2014ND10ND
2015N/A00N/A
2016N/A00N/A
2017N/A00N/A

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: Mount Morris, City of purchases water from Genesee County Water System which is required to test for bromoform. Sample information shown below was taken by Genesee County Water System.

Date Lab ID Result
2012-04-03LLE22297ND
2012-04-18LLE24232ND
2012-04-18LLE24230ND
2012-04-18LLE24233ND
2012-04-18LLE24231ND
2012-07-18LLE37670ND
2012-07-18LLE37669ND
2012-07-18LLE37668ND
2012-07-18LLE37667ND
2012-08-09LLE42014ND
2012-10-17LLE52746ND
2012-10-17LLE52748ND
2012-10-17LLE52747ND
2012-10-17LLE52749ND
2013-01-15LLE61376ND
2013-01-15LLE61375ND
2013-01-15LLE61377ND
2013-01-15LLE61374ND
2013-03-25LLE67455ND
2013-10-31LLE99789ND
2013-10-31LLE99790ND
2014-01-30LLF08160ND
2014-01-30LLF08161ND
2014-03-18LLF12194ND
2014-04-09LLF14269ND
2014-04-09LLF14270ND
2014-07-08LLF26067ND
2014-07-08LLF26068ND
2014-10-02LLF41707ND
2014-10-02LLF41708ND