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EWG's Tap Water Database — 2021 UPDATE

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Trichlorofluoromethane

Palmer Center Ugarc

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.

 

21

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014N/A00N/A
2015ND30ND
2016ND50ND
2017ND40ND
2018ND50ND
2019ND40ND

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
2015-05-26EHS150004737101-ND
2015-08-0508051560ND
2015-11-04GC152151ND
2016-02-0302031642ND
2016-04-0604061656ND
2016-05-11AU161012ND
2016-07-2607261604ND
2016-10-05UG163535ND
2017-01-11UG170070ND
2017-05-10UG170950ND
2017-08-080808716ND
2017-10-18101817441ND
2018-01-10UG180098POCND
2018-05-09PC180872ND
2018-08-0108011820POCND
2018-08-13EHS1800035918POCND
2018-10-09PC182388ND
2019-01-07PC190059ND
2019-04-24WD190998ND
2019-07-1707171903ND
2019-10-1410151907ND