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EWG's Tap Water Database — 2019 UPDATE

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Chlorodifluoromethane

City of Redmond Water System

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.

 

12

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012N/A00N/A
2013N/A00N/A
2014ND90ND
2015ND30ND
2016N/A00N/A
2017N/A00N/A

ppb = parts per billion

All test results

Date Lab ID Result
2014-06-25A4E1998-11AND
2014-06-25A4E1998-16AND
2014-06-25A4E1998-01AND
2014-06-25A4E1998-21AND
2014-09-24A4H1630-01AND
2014-12-17A4K1345-01AND
2014-12-17A4K1345-06AND
2014-12-17A4K1345-11AND
2014-12-17A4K1348-01AND
2015-03-04A5B1435-01AND
2015-08-18A5G2132-01AND
2015-12-15A5K1615-01AND