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EWG's Tap Water Database — 2021 UPDATE

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Chlorodifluoromethane

California Water Service (CWS) - Visalia

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

 

86

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.0632 ppb793ND - 3.60 ppb
20151.52 ppb62ND - 6.90 ppb
20161.90 ppb111.90 ppb
2017N/A00N/A
2018N/A00N/A
2019N/A00N/A

ppb = parts per billion

All test results

Date Lab ID Result
2014-04-01A4C1081-01AND
2014-04-03A4C1081-13AND
2014-04-07A4C1253-05AND
2014-04-08A4C1253-01AND
2014-04-10A4D0302-01AND
2014-04-13A4C1476-01AND
2014-04-13A4C1476-13AND
2014-04-15A4C1476-09AND
2014-04-22A4C1796-05AND
2014-04-24A4C1796-01AND
2014-04-25A4C1796-09AND
2014-05-06A4C2018-09AND
2014-05-07A4C2018-01AND
2014-05-07A4C2018-17AND
2014-05-07A4C2018-13AND
2014-05-08A4C2018-05AND
2014-05-08A4C2018-21AND
2014-05-09A4C2018-25AND
2014-05-12A4D0061-05A0.630 ppb
2014-05-12A4D0061-21AND
2014-05-12A4D0061-17AND
2014-05-12A4D0061-13AND
2014-05-13A4D0061-01AND
2014-05-14A4D0061-09AND
2014-05-19A4D1188-13AND
2014-05-19A4D1188-05AND
2014-05-22A4D1188-09AND
2014-06-02A4D1544-05AND
2014-06-02A4D1544-01AND
2014-06-05A4D1544-09AND
2014-06-10A4E0756-01A3.60 ppb
2014-06-11A4D1544-13AND
2014-06-12A4E0756-13AND
2014-06-12A4E0756-05AND
2014-06-13A4E0756-09AND
2014-06-16A4E2267-01AND
2014-06-17A4E2264-01AND
2014-06-18A4E2262-01AND
2014-06-19A4E2265-01AND
2014-06-23A4F1344-01AND
2014-06-24A4F1344-05AND
2014-10-06A4I2143-01AND
2014-10-13A4J0085-01AND
2014-10-14A4J0086-01AND
2014-10-15A4J0088-01AND
2014-10-19A4J1139-01AND
2014-10-20A4J1142-01AND
2014-10-26A4J1756-01AND
2014-10-26A4J1758-01AND
2014-10-27A4J1140-01AND
2014-11-01A4J2319-01AND
2014-11-02A4J2327-01AND
2014-11-03A4J2325-01AND
2014-11-03A4J2329-01AND
2014-11-04A4J2323-01AND
2014-11-04A4J2321-01AND
2014-11-05A4J2330-01AND
2014-11-09A4J2695-01AND
2014-11-10A4J2697-01AND
2014-11-10A4J2699-01AND
2014-11-11A4J2692-01AND
2014-11-12A4J2693-01A0.760 ppb
2014-11-16A4K0484-01AND
2014-11-16A4K0480-01AND
2014-11-17A4K0487-01AND
2014-11-18A4K0485-01AND
2014-11-20A4K0483-01AND
2014-11-30A4K1839-01AND
2014-12-01A4K1842-01AND
2014-12-02A4K1841-01AND
2014-12-08A4K2083-01AND
2014-12-08A4K2207-01AND
2014-12-08A4K2085-01AND
2014-12-09A4K2212-01AND
2014-12-09A4K2214-01AND
2014-12-09A4K2208-01AND
2014-12-10A4K2211-01AND
2014-12-11A4K2209-01AND
2014-12-12A4K2210-01AND
2015-04-16201504170415AMND
2015-04-16201504170371AMND
2015-04-23201504240286AMND
2015-07-06201507070575AM6.90 ppb
2015-12-16201512170415AMND
2015-12-20201512230707AM2.20 ppb
2016-01-12201601130620AM1.90 ppb