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EWG's Tap Water Database — 2019 UPDATE

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Bromodichloromethane

Town of Highland Park

NOTE: Town of Highland Park purchases water from Dallas County Park Cities Municipal Utility District which is required to test for bromodichloromethane. Sample information shown below was taken by Dallas County Park Cities Municipal Utility 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.

 

12

Samples

0

Samples exceeding legal limit (MCL)

1

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND10ND
20130.343 ppb31ND - 1.03 ppb
20141.34 ppb86ND - 2.20 ppb
20150.591 ppb83ND - 1.93 ppb
2016ND80ND
2017ND80ND

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

NOTE: Town of Highland Park purchases water from Dallas County Park Cities Municipal Utility District which is required to test for bromodichloromethane. Sample information shown below was taken by Dallas County Park Cities Municipal Utility District.

Date Lab ID Result
2012-08-081208482003ND
2012-08-081208482001ND
2013-09-18Q1307538004ND
2013-09-18Q1307538002ND
2014-05-22Q14176840041.90 ppb
2014-09-10Q1442994001ND
2015-08-06Q1531046001ND
2015-08-06Q1531046003ND
2016-08-02Q1632101003ND
2016-08-02Q1632101002ND
2017-08-23Q1737873003ND
2017-08-23Q1737873002ND