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EWG's Tap Water Database — 2021 UPDATE

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Chlorodifluoromethane

City of Sherman

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

 

20

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND180ND
2015ND20ND
2016N/A00N/A
2017N/A00N/A
2018N/A00N/A
2019N/A00N/A

ppb = parts per billion

All test results

Date Lab ID Result
2014-03-24Q1409267005ND
2014-03-24Q1409267007ND
2014-03-24Q1409267001ND
2014-03-24Q1409267003ND
2014-03-31Q1410032005ND
2014-03-31Q1410032003ND
2014-03-31Q1410032001ND
2014-06-16Q1421201001ND
2014-09-29Q1448928001ND
2014-09-29Q1448928005ND
2014-09-29Q1448928003ND
2014-09-29Q1448928007ND
2014-09-29Q1448928015ND
2014-09-29Q1448928017ND
2014-09-29Q1448928009ND
2014-09-29Q1448928013ND
2014-09-29Q1448928011ND
2014-12-29Q1460911001ND
2015-04-23Q1515129003ND
2015-04-23Q1515129001ND