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EWG's Tap Water Database — 2021 UPDATE

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Chlorodifluoromethane

California American Water Company - Parkway

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.

 

22

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.0160 ppb101ND - 0.160 ppb
20150.0167 ppb121ND - 0.200 ppb
2016N/A00N/A
2017N/A00N/A
2018N/A00N/A
2019N/A00N/A

ppb = parts per billion

All test results

Date Lab ID Result
2014-12-0227680001ND
2014-12-0227680201ND
2014-12-0227681501ND
2014-12-0227679801ND
2014-12-0327681201ND
2014-12-0327681001ND
2014-12-0427680801ND
2014-12-0427680401ND
2014-12-16276806010.160 ppb
2014-12-1727681701ND
2015-03-1928476801ND
2015-06-0929307901ND
2015-06-0929308101ND
2015-06-1129308301ND
2015-06-1729308901ND
2015-06-1729308701ND
2015-06-1829308501ND
2015-06-1829307501ND
2015-06-1829306901ND
2015-06-2329307301ND
2015-06-23293071010.200 ppb
2015-09-1730238501ND