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EWG's Tap Water Database — 2021 UPDATE

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Chlorodifluoromethane

Regional Water Authority

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.

MORE ABOUT THIS CONTAMINANT

 

28

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND280ND
2015N/A00N/A
2016N/A00N/A
2017N/A00N/A
2018N/A00N/A
2019N/A00N/A

ppb = parts per billion

All test results

Date Lab ID Result
2014-01-21200389843 AND
2014-01-21200389853 AND
2014-01-21200389855 AND
2014-01-21200389845 AND
2014-01-21200389833 AND
2014-01-21200389841 AND
2014-01-21200389839 AND
2014-01-21200389835 AND
2014-01-21200389837 AND
2014-01-22200389861 AND
2014-04-29200394914ND
2014-04-29200394923ND
2014-04-29200394919ND
2014-04-29200394927ND
2014-07-15200399796ND
2014-07-15200399797ND
2014-07-15200399795ND
2014-07-15200399801ND
2014-07-15200399793ND
2014-07-15200399794ND
2014-07-15200399800ND
2014-07-15200399799ND
2014-07-15200399792ND
2014-07-15200399798ND
2014-10-21200406621ND
2014-10-21200406619ND
2014-10-21200406625ND
2014-10-21200406627ND