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EWG's Tap Water Database — 2021 UPDATE

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Dichlorodifluoromethane

McDonald County Public Water Supply District 1

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.

 

8

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

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

ppb = parts per billion

All test results

Date Lab ID Result
2016-05-24AC72847ND
2016-05-24AC72849ND
2016-05-24AC72848ND
2016-05-24AC72846ND
2019-05-22AD47721ND
2019-05-22AD47722ND
2019-05-22AD47723ND
2019-05-22AD47724ND