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EWG's Tap Water Database — 2021 UPDATE

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Chlorodifluoromethane

La Crosse 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.

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26

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.0200 ppb222ND - 0.230 ppb
2015ND40ND
2016N/A00N/A
2017N/A00N/A
2018N/A00N/A
2019N/A00N/A

ppb = parts per billion

All test results

Date Lab ID Result
2014-06-09201406100164AMND
2014-06-09201406100167AMND
2014-06-09201406100209AMND
2014-06-09201406100397AMND
2014-06-09201406100213AMND
2014-06-09201406100207AMND
2014-06-10201406110893AMND
2014-06-10201406110898AMND
2014-06-10201406110900AMND
2014-06-10201406110853AMND
2014-06-10201406110967AMND
2014-06-24201406250372AMND
2014-07-23201407240488AM0.230 ppb
2014-12-08201412090773AMND
2014-12-08201412090775AMND
2014-12-08201412090550AM0.210 ppb
2014-12-08201412090511AMND
2014-12-08201412090769AMND
2014-12-08201412090763AMND
2014-12-08201412090513AMND
2014-12-08201412090588AMND
2014-12-09201412100782AMND
2015-05-04201505050286AMND
2015-06-16201506040133AMND
2015-06-16201506040131AMND
2015-06-16201506040135AMND