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EWG's Tap Water Database — 2021 UPDATE

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Dichlorodifluoromethane

Cerritos - City, Water Department

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.

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28

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
2014N/A00N/A
2015ND50ND
2016ND50ND
2017ND60ND
2018ND60ND
2019ND60ND

ppb = parts per billion

All test results

Date Lab ID Result
2015-02-122706-003-1250ND
2015-02-122706-001-1200ND
2015-05-282706-001-0855ND
2015-05-282706-003-0910ND
2015-06-302706-002-1400ND
2016-02-259588-003-1140ND
2016-02-259588-001-1115ND
2016-05-259588-002-1340ND
2016-08-299588-002-1200ND
2016-11-289588-002-1130ND
2017-02-239588-003-1115ND
2017-02-239588-002-1100ND
2017-02-239588-001-1040ND
2017-05-249588-002-1110ND
2017-08-249588-002-1145ND
2017-10-199588-002-1205ND
2018-02-229588-003-1130ND
2018-02-229588-002-1210ND
2018-02-229588-001-1110ND
2018-05-249588-002-1215ND
2018-08-159588-002-0810ND
2018-11-279588-002-0820ND
2019-02-139588-002-1005ND
2019-02-139588-001-0755ND
2019-02-139588-003-0835ND
2019-05-239588-002-0930ND
2019-08-089588-002-0945ND
2019-11-079588-002-0935ND