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EWG's Tap Water Database

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Chlorodifluoromethane

Watertown City

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.

 

4

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2010N/A00N/A
2011N/A00N/A
2012N/A00N/A
2013N/A00N/A
2014ND40ND
2015N/A00N/A

ppb = parts per billion.

All test results

Date Lab ID Result
2014-02-05769346-10694ND
2014-05-07784713-11342ND
2014-08-06808931-12027ND
2014-11-17831973-12883ND