Isn't this the same parcel of property that was gifted to the city by MichCon back in the 70s or 80s? I can't remember all the details from back then, but IIRC after the "gift" the property was discovered to be contaminated. MichCon had egg on their face because it appeared they were trying to unload it on the city for cleanup. I think eventually, MichCon did clean it up at their expense. Assuming it was clean back then, and only used for recreational purposes since, how does it get "dirty" again? I can think of one way...