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EWG's Tap Water Database — 2021 UPDATE

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Chlorodifluoromethane

City of League City

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.

 

17

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND90ND
2015ND80ND
2016N/A00N/A
2017N/A00N/A
2018N/A00N/A
2019N/A00N/A

ppb = parts per billion

All test results

Date Lab ID Result
2014-09-09Q1442411021ND
2014-09-09Q1442411001ND
2014-09-09Q1442411005ND
2014-09-09Q1442411017ND
2014-09-09Q1442411009ND
2014-09-09Q1442411025ND
2014-09-09Q1442411013ND
2014-12-08Q1458833005ND
2014-12-08Q1458833001ND
2015-03-17Q1509730017ND
2015-03-17Q1509730009ND
2015-03-17Q1509730013ND
2015-03-17Q1509730021ND
2015-03-17Q1509730001ND
2015-03-17Q1509730005ND
2015-06-24Q1523686005ND
2015-06-24Q1523686001ND