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EWG's Tap Water Database — 2021 UPDATE

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Chlorodifluoromethane

San Gabriel Valley Water Company - Fontana

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

 

40

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND320ND
2015ND80ND
2016N/A00N/A
2017N/A00N/A
2018N/A00N/A
2019N/A00N/A

ppb = parts per billion

All test results

Date Lab ID Result
2014-04-174D17067-01AND
2014-04-174D17067-05AND
2014-04-174D17067-03AND
2014-04-234D23055-07AND
2014-04-234D23055-01AND
2014-04-234D23055-05AND
2014-04-234D23055-09AND
2014-04-234D23055-03AND
2014-04-244D24063-01AND
2014-05-284E28060-01AND
2014-05-284E28060-03AND
2014-06-134F13031-01AND
2014-07-104G10139-05AND
2014-07-104G10140-01AND
2014-07-104G10140-03AND
2014-07-104G10139-01AND
2014-07-104G10139-03AND
2014-07-244G24064-05AND
2014-07-244G24064-03AND
2014-07-244G24064-01AND
2014-10-064J06076-03AND
2014-10-064J06076-01AND
2014-10-064J06076-05AND
2014-10-174J17097-07AND
2014-10-174J17097-09AND
2014-10-174J17097-05AND
2014-10-174J17097-03AND
2014-10-174J17097-01AND
2014-10-204J20058-03AND
2014-10-204J20058-05AND
2014-10-204J20058-01AND
2014-10-204J20058-07AND
2015-01-085A08066-01AND
2015-01-085A08066-05AND
2015-01-085A08066-03AND
2015-01-155A15052-05AND
2015-01-155A15052-01AND
2015-01-155A15052-03AND
2015-01-225A23020-01AND
2015-01-225A23020-03AND