Know Your Environment. Protect Your Health.

Dichlorodifluoromethane

Colville Water Department

Dichlorodifluoromethane (Freon-12) 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
2018N/A00N/A
2019ND10ND
2020N/A00N/A
2021N/A00N/A
20220.300 ppb21ND - 0.600 ppb
2023ND50ND

ppb = parts per billion

All test results

Date Lab ID Result
2019-09-23ND
2022-08-024328652ND
2022-12-1243851310.600 ppb
2023-03-234429205ND
2023-06-224480388ND
2023-09-284542957ND
2023-10-264539606ND
2023-10-264575180ND