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EWG's Tap Water Database — 2019 UPDATE

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Bromodichloromethane

Bellefonte Borough Water Authority

Bromodichloromethane, one of the total trihalomethanes (TTHMs), is formed when chlorine or other disinfectants are used to treat drinking water. Bromodichloromethane and other disinfection byproducts increase the risk of cancer and may cause problems during pregnancy. Click here to read more about disinfection byproducts.

 

7

Samples

0

Samples exceeding legal limit (MCL)

3

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012N/A00N/A
2013N/A00N/A
20140.730 ppb110.730 ppb
20150.550 ppb31ND - 1.65 ppb
20160.305 ppb21ND - 0.610 ppb
2017ND10ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.06 ppb

The EWG Health Guideline of 0.06 ppb for bromodichloromethane 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
2014-09-114I11149-010.730 ppb
2015-03-1912561070ND
2015-09-2513313708ND
2015-09-25133137091.65 ppb
2016-09-0814974575ND
2016-09-08149745760.610 ppb
2017-09-1216786190ND