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EWG's Tap Water Database — 2019 UPDATE

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Chlorodifluoromethane

City of Gilroy

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
2012N/A00N/A
2013N/A00N/A
20140.0206 ppb173ND - 0.140 ppb
2015N/A00N/A
2016N/A00N/A
2017N/A00N/A

ppb = parts per billion

All test results

Date Lab ID Result
2014-01-14A3L2052-11AND
2014-01-14A3L2052-15AND
2014-01-14A3L2052-07AND
2014-01-14A3L2052-17AND
2014-01-14A3L2052-05AND
2014-01-14A3L2052-09AND
2014-01-14A3L2052-03AND
2014-03-24A4C1501-01AND
2014-05-29A4E2213-01AND
2014-07-08A4F1134-07AND
2014-07-08A4F1134-22AND
2014-07-08A4F1134-01A0.0900 ppb
2014-07-08A4F1134-13AND
2014-07-08A4F1134-16AND
2014-07-08A4F1134-10AND
2014-08-04A4G2633-01A0.140 ppb
2014-09-16A4I0774-01A0.120 ppb