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EWG's Tap Water Database — 2021 UPDATE

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Trichlorofluoromethane

Allendale Water Department

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.

 

16

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND50ND
2015ND60ND
2016ND50ND
2017N/A00N/A
2018N/A00N/A
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
2014-01-214010523-01ND
2014-04-234040797-01ND
2014-07-144070507-01ND
2014-10-024100134-01ND
2014-10-024100134-02ND
2015-01-222051451001ND
2015-04-062063967001ND
2015-07-072081643001ND
2015-10-202103273001ND
2015-10-202103273002ND
2015-10-202103273003ND
2016-01-052116959001ND
2016-04-042134713001ND
2016-07-182159873001ND
2016-10-062180788001ND
2016-10-062180788002ND