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EWG's Tap Water Database — 2021 UPDATE

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Chlorodifluoromethane

City of Davis

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.

 

25

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND240ND
2015ND10ND
2016N/A00N/A
2017N/A00N/A
2018N/A00N/A
2019N/A00N/A

ppb = parts per billion

All test results

Date Lab ID Result
2014-01-06A3L2010-09AND
2014-01-06A3L2010-37AND
2014-01-06A3L2010-41AND
2014-01-06A3L2010-17AND
2014-01-06A3L2010-25AND
2014-01-06A3L2010-21AND
2014-01-06A3L2010-01AND
2014-01-06A3L2010-33AND
2014-01-06A3L2010-29AND
2014-01-06A3L2010-05AND
2014-01-07A3L2010-13AND
2014-04-08A4C2096-01AND
2014-08-13A4F2265-16AND
2014-08-13A4F2265-21AND
2014-08-13A4F2265-01AND
2014-08-13A4F2265-11AND
2014-08-13A4F2265-06AND
2014-08-13A4F2265-36AND
2014-08-13A4F2265-46AND
2014-08-13A4F2265-41AND
2014-08-13A4F2265-26AND
2014-08-13A4F2265-31AND
2014-08-13A4F2265-51AND
2014-08-13A4F2264-01AND
2015-01-13A4L0813-01AND