Know Your Environment. Protect Your Health.

Trichlorofluoromethane

Blackjack Water Supply Corporation

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.

 

14

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND20ND
2019ND20ND
2020ND40ND
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
2018-03-22Q1811649001ND
2018-03-22Q1811649011ND
2019-05-21Q1927030006ND
2019-05-21Q1927030008ND
2020-03-09Q2008429001ND
2020-03-09Q2008429003ND
2020-05-07Q2018092003ND
2020-07-30Q2029903003ND
2021-09-29Q2126705005ND
2021-09-29Q2126705007ND
2022-06-13Q2216378006ND
2022-06-13Q2216378008ND
2023-04-03Q2312018003ND
2023-04-03Q2312018005ND