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EWG's Tap Water Database — 2021 UPDATE

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Dichlorodifluoromethane

Shelbyville Water Supply Corporation

Dichlorodifluoromethane (Freon-12) 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.

 

7

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND10ND
2015ND10ND
2016ND10ND
2017ND20ND
2018ND10ND
2019ND10ND

ppb = parts per billion

All test results

Date Lab ID Result
2014-02-10Q1403935004ND
2015-07-30Q1529714002ND
2016-09-13Q1637150002ND
2017-09-28Q1747293001ND
2017-09-28Q1747293003ND
2018-02-26Q1808053008ND
2019-05-16Q1926364006ND