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EWG's Tap Water Database — 2019 UPDATE

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Bromodichloromethane

Klondike Independent School District

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.

 

22

Samples

0

Samples exceeding legal limit (MCL)

1

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012N/A00N/A
2013ND30ND
2014ND30ND
2015ND70ND
2016ND50ND
20171.43 ppb41ND - 5.71 ppb

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
2013-01-231301678010ND
2013-06-20Q1302604005ND
2013-11-26Q1315112005ND
2014-06-05Q1419528004ND
2014-09-03Q1440864004ND
2014-10-23Q1453729004ND
2015-01-21Q1502000003ND
2015-04-15Q1514210003ND
2015-04-15Q1514210005ND
2015-07-13Q1526518003ND
2015-09-28Q1538032002ND
2015-10-14Q1540708005ND
2015-10-14Q1540708003ND
2016-01-26Q1603482009ND
2016-01-26Q1603482001ND
2016-04-12Q1614437004ND
2016-07-07Q1627392003ND
2016-10-12Q1643584003ND
2017-02-01Q1704412005ND
2017-02-01Q1704412007ND
2017-04-11Q1714630004ND
2017-07-11Q17281250045.71 ppb