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EWG's Tap Water Database — 2019 UPDATE

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Chlorodifluoromethane

California American Water Company - Coronado

NOTE: California American Water Company - Coronado purchases water from City of San Diego which is required to test for chlorodifluoromethane. Sample information shown below was taken by City of San Diego.

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.

 

12

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
2013ND40ND
20140.0275 ppb41ND - 0.110 ppb
2015N/A00N/A
2016N/A00N/A
2017N/A00N/A

ppb = parts per billion

All test results

NOTE: California American Water Company - Coronado purchases water from City of San Diego which is required to test for chlorodifluoromethane. Sample information shown below was taken by City of San Diego.

Date Lab ID Result
2013-08-191308683-001FND
2013-08-201308735-001FND
2013-08-211308767-001FND
2013-11-121311402-001FND
2013-11-121311404-001FND
2013-11-131311448-001FND
2014-02-101402418-001FND
2014-02-101402421-001F0.160 ppb
2014-02-111402513-001FND
2014-05-121405468-001F0.0910 ppb
2014-05-121405511-001FND
2014-05-131405607-001FND