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EWG's Tap Water Database — 2021 UPDATE

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Chlorodifluoromethane

Glenwood

NOTE: Glenwood purchases water from Chicago Heights which is required to test for chlorodifluoromethane. Sample information shown below was taken by Chicago Heights.

Chlorodifluoromethane (Freon 22) is a refrigerant, solvent and aerosol propellant banned in 2000 under the Montreal Protocol because of its ozone-depleting properties. Freons can cause heart, nervous system and liver damage.

 

4

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND40ND
2015N/A00N/A
2016N/A00N/A
2017N/A00N/A
2018N/A00N/A
2019N/A00N/A

ppb = parts per billion

All test results

NOTE: Glenwood purchases water from Chicago Heights which is required to test for chlorodifluoromethane. Sample information shown below was taken by Chicago Heights.

Date Lab ID Result
2013-10-1023840901ND
2014-01-1424486001ND
2014-04-0925307601ND
2014-07-1526388401ND