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EWG's Tap Water Database — 2021 UPDATE

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Trichlorofluoromethane

Watchtower Bible Tract Society

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.

 

24

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND70ND
2015ND70ND
2016ND70ND
2017N/A00N/A
2018ND10ND
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
2014-07-09296535-02POCSND
2014-07-09296534-02 POCSND
2014-07-09296535-06POCND
2014-07-09296534-04POCSND
2014-07-09296535-08POCSND
2014-07-09296535-04POCSND
2014-07-09296534-06POCSND
2015-07-23307161-04POCSND
2015-07-23307162-06ND
2015-07-23307161-02POCSND
2015-07-23307161-06ND
2015-07-23307162-04POCSND
2015-07-23307162-08POCSND
2015-07-23307162-02PIOCSND
2016-07-20317744-04POCSND
2016-07-20317744-02POCSND
2016-07-20317744-06POCSND
2016-07-20317745-04POCSND
2016-07-20317745-02POCSND
2016-07-20317745-06POCSND
2016-07-20317744-08POCSND
2018-07-31420-140368-1POCSND
2019-08-08420-158308-4POCSND
2019-08-08420-158308-1POCSND