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EWG's Tap Water Database — 2021 UPDATE

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Trichlorofluoromethane

Clearbrooke Estates Pump District

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.

 

15

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND30ND
2015ND20ND
2016ND20ND
2017ND30ND
2018ND30ND
2019ND20ND

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
2014-04-15S479172ND
2014-08-26S588720ND
2014-08-26S588722ND
2015-08-20S614713ND
2015-08-20S614714ND
2016-08-09S670427ND
2016-08-09S670428ND
2017-04-20S730803ND
2017-08-29S737126ND
2017-08-29S737130ND
2018-08-30S812123ND
2018-08-30S812127ND
2018-08-30S812128ND
2019-08-21S865032ND
2019-08-21S865036ND