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EWG's Tap Water Database — 2021 UPDATE

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Chlorodifluoromethane

California American Water Company - Suburban

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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40

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.0360 ppb201ND - 0.720 ppb
20150.0445 ppb202ND - 0.770 ppb
2016N/A00N/A
2017N/A00N/A
2018N/A00N/A
2019N/A00N/A

ppb = parts per billion

All test results

Date Lab ID Result
2014-10-0627147801ND
2014-10-0627313901ND
2014-10-0627147201ND
2014-10-0627148401ND
2014-10-0627484301ND
2014-10-0627147901ND
2014-10-0627147701ND
2014-10-0627313301ND
2014-10-0627148101ND
2014-10-0827148201ND
2014-10-0827314201ND
2014-10-0827313701ND
2014-10-0827147601ND
2014-10-0827147301ND
2014-10-0827147401ND
2014-10-1527313601ND
2014-10-1527148301ND
2014-10-1527314001ND
2014-10-1527314101ND
2014-10-23273134010.720 ppb
2015-04-0628698201ND
2015-04-0628697901ND
2015-04-0628697801ND
2015-04-0628698301ND
2015-04-0628698401ND
2015-04-0628698901ND
2015-04-0628698001ND
2015-04-0728699001ND
2015-04-0728699101ND
2015-04-0728697501ND
2015-04-0728697301ND
2015-04-0728697401ND
2015-04-08286985010.770 ppb
2015-04-0928697201ND
2015-04-0928699201ND
2015-04-1528698701ND
2015-04-2328697601ND
2015-07-0829299501ND
2015-07-3029268601ND
2015-09-16286986010.120 ppb