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EWG's Tap Water Database — 2021 UPDATE

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Chlorodifluoromethane

Dallas Water Utility

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.

 

12

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND90ND
2015ND30ND
2016N/A00N/A
2017N/A00N/A
2018N/A00N/A
2019N/A00N/A

ppb = parts per billion

All test results

Date Lab ID Result
2014-04-08Q1410915005ND
2014-04-08Q1410915009ND
2014-04-08Q1410915001ND
2014-07-15Q1428070005ND
2014-07-15Q1428070009ND
2014-07-15Q1428070001ND
2014-10-21Q1453299005ND
2014-10-21Q1453299009ND
2014-10-21Q1453299001ND
2015-01-13Q1500512005ND
2015-01-13Q1500512009ND
2015-01-13Q1500512001ND