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EWG's Tap Water Database — 2021 UPDATE

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Chlorodifluoromethane

Johnson 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
2014N/A00N/A
2015ND200ND
2016N/A00N/A
2017N/A00N/A
2018N/A00N/A
2019N/A00N/A

ppb = parts per billion

All test results

Date Lab ID Result
2015-01-193173559ND
2015-01-193173628ND
2015-01-193173585ND
2015-01-193173545ND
2015-01-193173509ND
2015-01-213175876ND
2015-01-273178375ND
2015-01-283179083ND
2015-03-173209611ND
2015-03-233212187ND
2015-07-143280681ND
2015-07-143279533ND
2015-07-143280734ND
2015-07-153281619ND
2015-07-153281601ND
2015-07-153281571ND
2015-07-213285514ND
2015-07-213285489ND
2015-07-213285586ND
2015-07-213285554ND