Know Your Environment. Protect Your Health.

Trichlorofluoromethane

Upton DPW Water/wastewater Division

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.

 

18

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND30ND
2019ND30ND
2020ND30ND
2021ND30ND
2022ND30ND
2023ND30ND

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

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 Result
2018-04-02ND
2018-04-02ND
2018-11-05ND
2019-04-01ND
2019-04-01ND
2019-04-01ND
2020-11-12ND
2020-11-12ND
2020-11-12ND
2021-04-05ND
2021-04-05ND
2021-04-05ND
2022-05-17ND
2022-05-17ND
2022-05-17ND
2023-06-15ND
2023-06-15ND
2023-06-15ND