Know Your Environment. Protect Your Health.

Trichlorofluoromethane

City of Castroville

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.

 

12

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND20ND
2019ND20ND
2020ND20ND
2021ND20ND
2022ND20ND
2023ND20ND

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 Lab ID Result
2018-03-28AE20664ND
2018-03-28AE20680ND
2019-06-18AE71110ND
2019-06-18AE71116ND
2020-01-28AE95679ND
2020-01-28AE95685ND
2021-06-28AF59673ND
2021-06-28AF59675ND
2022-02-08AF83711ND
2022-02-08AF83715ND
2023-03-28AG34417ND
2023-03-28AG34419ND