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EWG's Tap Water Database — 2021 UPDATE

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Chlorodifluoromethane

Waunakee Waterworks

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.

 

10

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND50ND
2015ND50ND
2016N/A00N/A
2017N/A00N/A
2018N/A00N/A
2019N/A00N/A

ppb = parts per billion

All test results

Date Lab ID Result
2014-10-07824699-12579ND
2014-10-07824707-12579ND
2014-10-07824711-12579ND
2014-10-07824703-12579ND
2014-10-13825639-12608ND
2015-04-07852437-13851ND
2015-04-07852433-13851ND
2015-04-07852429-13851ND
2015-04-08853084-13847ND
2015-05-04857963-14010ND