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EWG's Tap Water Database — 2021 UPDATE

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Chlorodifluoromethane

Antioch

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.

 

14

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013ND70ND
2014ND70ND
2015N/A00N/A
2016N/A00N/A
2017N/A00N/A
2018N/A00N/A
2019N/A00N/A

ppb = parts per billion

All test results

Date Lab ID Result
2013-12-10762664-10438ND
2013-12-10762662-10438ND
2013-12-10762668-10438ND
2013-12-10762666-10438ND
2013-12-10762604-10428ND
2013-12-10762608-10428ND
2013-12-10762606-10428ND
2014-06-03794712-11546ND
2014-06-03794710-11546ND
2014-06-03794716-11546ND
2014-06-03794714-11546ND
2014-06-03794722-11546ND
2014-06-03794720-11546ND
2014-06-03794724-11546ND