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EWG's Tap Water Database — 2021 UPDATE

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Trichlorofluoromethane

Greenwood

Trichlorofluoromethane (Freon 11) 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
2014ND20ND
2015ND20ND
2016ND20ND
2017ND20ND
2018ND20ND
2019ND20ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 1,300 ppb

The EWG Health Guideline of 1,300 ppb for trichlorofluoromethane was defined by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against harm to internal organs.

ppb = parts per billion

All test results

Date Lab ID Result
2014-07-0214184005501ND
2014-10-0814282016601ND
2015-07-0815191001409ND
2015-10-0615281007701ND
2016-07-0616189016402ND
2016-10-0416280010101ND
2017-07-0317187011901ND
2017-10-0317277001301ND
2018-07-0318186013009ND
2018-10-0218277000909ND
2019-07-0819192006602ND
2019-10-0919283006801ND