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EWG's Tap Water Database — 2019 UPDATE

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Chlorodifluoromethane

San Fernando Water Department

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
20140.269 ppb108ND - 0.400 ppb
20150.380 ppb220.360 ppb - 0.400 ppb
2016N/A00N/A
2017N/A00N/A

ppb = parts per billion

All test results

Date Lab ID Result
2014-04-10201404110048AM0.360 ppb
2014-04-10201404110047AMND
2014-04-10201404110049AM0.390 ppb
2014-04-10201404110046AM0.290 ppb
2014-07-08201407080437AM0.230 ppb
2014-07-08201407080439AM0.380 ppb
2014-10-23201410230582AMND
2014-10-23201410230584AM0.400 ppb
2014-10-23201410230580AM0.310 ppb
2014-10-23201410230586AM0.330 ppb
2015-01-07201501070348AM0.400 ppb
2015-01-07201501070346AM0.360 ppb