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EWG's Tap Water Database — 2021 UPDATE

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Dichlorodifluoromethane

Newhall Cwd-pinetree

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.

 

9

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND20ND
2015N/A00N/A
2016N/A00N/A
2017ND10ND
2018ND20ND
2019ND40ND

ppb = parts per billion

All test results

Date Lab ID Result
2014-02-139590-003-1235ND
2014-02-139590-008-1300ND
2017-04-069590-008-0935ND
2018-04-052104-008-1005ND
2018-11-289590-008-1045ND
2019-04-189590-008-1015ND
2019-05-139590-008-0915ND
2019-06-139590-001-1055ND
2019-06-139590-003-1020ND