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EWG's Tap Water Database — 2019 UPDATE

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Dibromochloromethane

Kingston Water Department

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

 

35

Samples

0

Samples exceeding legal limit (MCL)

18

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012N/A00N/A
2013N/A00N/A
2014N/A00N/A
2015N/A00N/A
20160.913 ppb167ND - 3.10 ppb
20170.984 ppb1911ND - 2.70 ppb

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.1 ppb

The EWG Health Guideline of 0.1 ppb for dibromochloromethane 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 Result
2016-05-102.00 ppb
2016-05-103.10 ppb
2016-05-103.00 ppb
2016-06-09ND
2016-06-09ND
2016-06-09ND
2016-06-09ND
2016-06-09ND
2016-06-09ND
2016-08-09ND
2016-08-090.700 ppb
2016-08-09ND
2016-08-09ND
2016-11-082.00 ppb
2016-11-081.50 ppb
2016-11-082.30 ppb
2017-03-282.10 ppb
2017-03-281.60 ppb
2017-03-281.80 ppb
2017-05-171.55 ppb
2017-05-17ND
2017-05-171.34 ppb
2017-06-20ND
2017-06-20ND
2017-06-20ND
2017-06-20ND
2017-06-20ND
2017-06-20ND
2017-08-082.00 ppb
2017-08-081.40 ppb
2017-08-080.800 ppb
2017-08-08ND
2017-11-071.80 ppb
2017-11-072.70 ppb
2017-11-071.60 ppb