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EWG's Tap Water Database — 2021 UPDATE

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Trichlorofluoromethane

Silverdale Water District 16

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.

 

13

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
2015ND110ND
2016ND10ND
2017N/A00N/A
2018ND10ND
2019N/A00N/A

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
2015-08-2039383ND
2015-08-2039382ND
2015-08-2039381ND
2015-08-2039380ND
2015-08-2039379ND
2015-08-2039378ND
2015-08-2140225ND
2015-08-2140224ND
2015-08-2140223ND
2015-08-2140222ND
2015-08-2140221ND
2016-01-25ND
2018-09-04ND