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EWG's Tap Water Database — 2021 UPDATE

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Chlorodifluoromethane

California Water Service (CWS) - Selma

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.

 

18

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.0171 ppb172ND - 0.160 ppb
2015ND10ND
2016N/A00N/A
2017N/A00N/A
2018N/A00N/A
2019N/A00N/A

ppb = parts per billion

All test results

Date Lab ID Result
2014-02-05A4A1432-05AND
2014-02-05A4A1432-07AND
2014-02-05A4A1432-01AND
2014-02-05A4A1432-03A0.130 ppb
2014-02-12A4A1448-03AND
2014-02-12A4A1442-01AND
2014-02-12A4A1442-05AND
2014-02-12A4A1448-05AND
2014-02-12A4A1442-03AND
2014-08-13A4G2805-01AND
2014-08-13A4G2802-01AND
2014-08-13A4G2799-01A0.160 ppb
2014-08-19A4G2158-01AND
2014-08-19A4G2161-01AND
2014-08-19A4G2159-01AND
2014-08-19A4H0220-01AND
2014-08-26A4H1894-01AND
2015-06-04201506050606AMND