Chlorodifluoromethane

Oak Forest

NOTE: Oak Forest purchases water from Oak Lawn which is required to test for chlorodifluoromethane. Sample information shown below was taken by Oak Lawn.

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.

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Samples

Samples exceeding legal limit (MCL)

Samples exceeding
health guidelines

Testing results - average by year

Year	Average result	Samples taken	Range of results
2014	ND	3	ND
2015	ND	1	ND
2016	N/A	0	N/A
2017	N/A	0	N/A
2018	N/A	0	N/A
2019	N/A	0	N/A

ppb = parts per billion

All test results

NOTE: Oak Forest purchases water from Oak Lawn which is required to test for chlorodifluoromethane. Sample information shown below was taken by Oak Lawn.

Date	Lab ID	Result
2013-02-12	21038401	ND
2013-05-07	21964201	ND
2013-09-11	23245001	ND
2013-11-12	24083801	ND