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EWG's Tap Water Database — 2019 UPDATE

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Bromodichloromethane

De Pere Water Department

NOTE: De Pere Water Department purchases water from Central Brown Co. Water Authority which is required to test for bromodichloromethane. Sample information shown below was taken by Central Brown Co. 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.

 

20

Samples

0

Samples exceeding legal limit (MCL)

20

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012N/A00N/A
201312.6 ppb558.80 ppb - 16.0 ppb
20149.98 ppb20200.330 ppb - 15.0 ppb
201512.0 ppb15156.10 ppb - 22.0 ppb
201611.9 ppb16167.10 ppb - 19.0 ppb
201713.8 ppb16166.20 ppb - 20.0 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

NOTE: De Pere Water Department purchases water from Central Brown Co. Water Authority which is required to test for bromodichloromethane. Sample information shown below was taken by Central Brown Co. Water Authority.

Date Lab ID Result
2014-01-154010407-014.21 ppb
2014-01-154010407-044.71 ppb
2014-01-154010407-024.78 ppb
2014-01-154010407-034.92 ppb
2014-04-157805478.90 ppb
2014-04-157805488.80 ppb
2014-04-157805467.60 ppb
2014-04-157805457.40 ppb
2014-07-0980195913.0 ppb
2014-07-0980195812.0 ppb
2014-07-0980195710.00 ppb
2014-07-0980195610.00 ppb
2014-10-078238899.90 ppb
2014-10-078238889.00 ppb
2014-10-078238868.40 ppb
2014-10-078238878.10 ppb
2015-01-138387516.70 ppb
2015-01-138387526.70 ppb
2015-01-138387537.90 ppb
2015-01-138387548.10 ppb