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EWG's Tap Water Database — 2021 UPDATE

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Dichlorodifluoromethane

City of Atwater

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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20

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
2014ND40ND
2015N/A00N/A
2016ND80ND
2017N/A00N/A
2018N/A00N/A
2019ND80ND

ppb = parts per billion

All test results

Date Lab ID Result
2014-03-125806-903-0910ND
2014-03-125806-902-0935ND
2014-03-125806-901-0815ND
2014-03-125806-900-0735ND
2016-03-235806-018-0900ND
2016-03-235806-021-1000ND
2016-03-235806-019-0930ND
2016-03-235806-013-0630ND
2016-03-235806-017-0830ND
2016-03-235806-016-0800ND
2016-03-235806-015-0730ND
2016-03-235806-014-0700ND
2019-02-275806-017-0730ND
2019-02-275806-016-1020ND
2019-02-275806-018-0820ND
2019-02-275806-019-0855ND
2019-02-275806-015-0650ND
2019-02-275806-021-1155ND
2019-02-275806-014-1130ND
2019-02-275806-013-1100ND