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EWG's Tap Water Database — 2021 UPDATE

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Chlorodifluoromethane

Clark Public Utilities

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.

 

20

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013ND20ND
20140.0544 ppb92ND - 0.250 ppb
2015ND90ND
2016N/A00N/A
2017N/A00N/A
2018N/A00N/A
2019N/A00N/A

ppb = parts per billion

All test results

Date Lab ID Result
2013-09-17A3I0852-05AND
2013-09-17A3I0852-01AND
2014-03-26A4C0715-01AND
2014-03-26A4C0715-05AND
2014-05-13A4E0222-01AND
2014-05-13A4E0222-06A0.240 ppb
2014-06-11A4E2186-01AND
2014-11-19A4J2055-01AND
2014-11-19A4J2055-06A0.250 ppb
2014-11-20A4J2062-01AND
2014-12-10A4K2008-01AND
2015-05-19A5D2282-01AND
2015-05-19A5D2279-01AND
2015-06-11A5E2086-01AND
2015-06-11A5E2086-11AND
2015-06-11A5E2086-06AND
2015-11-19A5J2330-01AND
2015-12-21A5K1239-01AND
2015-12-21A5K1239-06AND
2015-12-21A5K1239-11AND