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EWG's Tap Water Database — 2021 UPDATE

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Trichlorofluoromethane

Mostyn Manor

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.

 

10

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND10ND
2015ND10ND
2016ND10ND
2017ND10ND
2018ND40ND
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
2014-08-21AC64895ND
2015-04-22AC89280ND
2016-07-06AD43175ND
2017-07-27AD91136ND
2018-03-06AE17024ND
2018-05-03AE25104ND
2018-09-11AE39586ND
2018-10-31AE45086ND
2019-02-20AE55053ND
2019-02-20AE55093ND