Dichlorodifluoromethane

Concord Water System

NOTE: Concord Water System purchases water from Marion Water System which is required to test for dichlorodifluoromethane. Sample information shown below was taken by Marion Water System.

Dichlorodifluoromethane (Freon-12) 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	2	ND
2015	N/A	0	N/A
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: Concord Water System purchases water from Marion Water System which is required to test for dichlorodifluoromethane. Sample information shown below was taken by Marion Water System.

Date	Lab ID	Result
2014-11-17	AD99768	ND
2014-11-17	AD99768	ND