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EWG's Tap Water Database — 2021 UPDATE

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Trichlorofluoromethane

City Of Gustine

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.

 

10

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND50ND
2015N/A00N/A
2016ND10ND
2017ND30ND
2018N/A00N/A
2019ND10ND

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
2014-01-095810-014-1235ND
2014-04-105810-014-1115ND
2014-10-085810-006-1015ND
2014-10-085810-007-0958ND
2014-10-085810-014-1030ND
2016-07-135810-005-1030ND
2017-10-115810-006-1010ND
2017-10-185810-014-1025ND
2017-10-255810-007-1015ND
2019-07-175810-005-1005ND