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EWG's Tap Water Database — 2019 UPDATE

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Chlorodifluoromethane

Issaquah Water System

Chlorodifluoromethane (Freon 22) 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.

 

8

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012N/A00N/A
2013ND40ND
2014N/A00N/A
2015ND40ND
2016N/A00N/A
2017N/A00N/A

ppb = parts per billion

All test results

Date Lab ID Result
2013-07-22WA97-SE1-13-1307ND
2013-07-22WA97-SE1-1301307ND
2013-07-22WA97-SE1-13-1307ND
2013-07-22WA97-SE1-13-1307ND
2015-03-11WA97-SE1-15-0464ND
2015-03-11WA97-SE1-15-0464ND
2015-03-11WA97-SE1-15-0464ND
2015-03-11WA97-SE1-15-0464ND