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EWG's Tap Water Database — 2021 UPDATE

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Trichlorofluoromethane

Farmington

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.

 

28

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
2014N/A00N/A
2015ND130ND
2016ND10ND
2017N/A00N/A
2018ND140ND
2019N/A00N/A

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
2015-07-21AC55400ND
2015-07-21AC55412ND
2015-07-21AC55406ND
2015-07-21AC55401ND
2015-07-21AC55410ND
2015-07-21AC55411ND
2015-07-21AC55403ND
2015-07-21AC55402ND
2015-07-21AC55409ND
2015-07-21AC55408ND
2015-07-21AC55407ND
2015-07-21AC55405ND
2015-07-21AC55404ND
2016-07-12AC80703ND
2018-07-23AD29565ND
2018-07-23AD29578ND
2018-07-23AD29576ND
2018-07-23AD29573ND
2018-07-23AD29569ND
2018-07-24AD29568ND
2018-07-24AD29566ND
2018-07-24AD29567ND
2018-07-24AD29575ND
2018-07-24AD29572ND
2018-07-24AD29570ND
2018-07-24AD29571ND
2018-07-24AD29574ND
2018-07-24AD29577ND