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National Drinking Water Database


Dichlorofluoromethane in Minnesota


Dichlorofluoromethane (Freon-21) is a refrigerant and ozone-depleting chemical scheduled to be phased out of use under the Montreal Protocol.

The Most Polluted Communities in Minnesota

4 water utilities reported detecting Dichlorofluoromethane in tap water since 2004, according to EWG's analysis of water quality data supplied by state water agencies

Ranked by highest average Dichlorofluoromethane level

RankSystem Population Served Positive test results of total reported tests Average Level
(Range)
1Saint Louis Park
St Louis Park, MN
44,12624 of 271 ppb
(0 to 2.1 ppb)
2Medina
Hamel, MN
2,3731 of 50.18 ppb
(0 to 0.9 ppb)
3Edina
Edina, MN
48,1564 of 210.06 ppb
(0 to 0.8 ppb)
4Rochester
Rochester, MN
97,1911 of 19< 0.01 ppb
(0 to 0.13 ppb)

Health Based Limits for Dichlorofluoromethane

There are no health based standards that EWG is using for this chemical

Violation Summary for Dichlorofluoromethane in Minnesota

There are no violations reported for this contaminant in Minnesota