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EWG's Tap Water Database — 2021 UPDATE

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Trichlorofluoromethane

Cypress Springs SUD N Plant 1 and NE Plant

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
2014ND20ND
2015ND20ND
2016ND20ND
2017ND20ND
2018ND20ND
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
2014-09-17Q1445247004ND
2014-09-17Q1445247006ND
2015-09-22Q1537064011ND
2015-09-22Q1537064010ND
2016-09-21Q1639244001ND
2016-09-21Q1639244004ND
2017-08-17Q1736889002ND
2017-08-17Q1736889004ND
2018-08-20Q1833137001ND
2018-08-20Q1833137004ND
2019-09-19Q1966997001ND
2019-09-19Q1966997003ND