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To be clear, the PFOS pollution in the St Croix is almost certainly from groundwater contamination from 3M manufacturing and dump sites near or in the lower St
by quickthrowman 5y ago
To be clear, the PFOS pollution in the St Croix is almost certainly from groundwater contamination from 3M manufacturing and dump sites near or in the lower St Croix watershed, not road water runoff.
- germinalphrase 5y agoThe 3M-PFAS connection is clearly established. Run off is also a known problem and clear trade offs are being considered. (which is not a dismissal for the problems).
- WkndTriathlete 5y agoYup. Minnesota's DNR is usually pretty well-informed and pretty proactive. De-icing around the Twin Cities metro has improved significantly over the past 5-10 years. Now if we could just convince the property owners around the lakes not to dump so much fertilizer on their lawns...
- mensetmanusman 5y agoI believe more specifically it is PFOS from the pre-70s. Interestingly, this was ww2 nation state technology that helped make missile components, then everyone wanted it to fight fires in ammo yards.