Know Your Environment. Protect Your Health.

Trichlorofluoromethane

City of Frost

NOTE: City of Frost purchases water from City of Corsicana which is required to test for trichlorofluoromethane. Sample information shown below was taken by City of Corsicana.

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
2019ND30ND
2020ND10ND
2021ND10ND
2022ND10ND
2023ND10ND

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

NOTE: City of Frost purchases water from City of Corsicana which is required to test for trichlorofluoromethane. Sample information shown below was taken by City of Corsicana.

Date Lab ID Result
2018-07-17Q1828588001ND
2018-07-17Q1828588004ND
2019-07-29Q1948665001ND
2019-09-24Q1968203001ND
2020-09-16Q2037149001ND
2020-09-24Q2037862001ND
2021-07-14Q2118452001ND
2021-09-16Q2125446001ND
2022-08-23Q2224990001ND
2022-08-23Q2224990003ND
2023-07-31Q2330841001ND
2023-07-31Q2330841003ND