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EWG's Tap Water Database — 2021 UPDATE

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Trichlorofluoromethane

City of Miles

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.

 

9

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014N/A00N/A
2015ND30ND
2016ND30ND
2017ND10ND
2018ND10ND
2019ND10ND

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
2015-05-26AC93431ND
2015-09-29AD08877ND
2015-11-03AD12415ND
2016-03-24AD30474ND
2016-05-18AD37306ND
2016-08-02AD46905ND
2017-03-01Q1708976001ND
2018-02-22Q1807534007ND
2019-03-07Q1909831003ND