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EWG's Tap Water Database — 2021 UPDATE

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Trichlorofluoromethane

Jamestown BPU

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
2013N/A00N/A
2014N/A00N/A
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
2015-02-262015 POC CLAY POND
2015-02-262015POC CASSADAGND
2016-05-04POCS 2016 CLAYPOND
2016-05-04POC16 CASSADAGAND
2017-08-23POC17 CASSADAGAND
2017-08-23POCS17 CLAY PONDND
2018-08-08POCS 18 JTOWN CLND
2018-08-08POCS 18 JTOWN CAND
2019-08-07POCS 19 JTOWN CAND
2019-08-07POCS 19 JTOWN CLND