This will be an Eminent Domain bonanza!!!!
This is just a land grab trifecta
1) you have Kelo v. City of New London saying that any taking by the government is for "the public use", allowing the government to openly grab land at eminent domain prices and give it to their developer friends
2) you then have the EPA marking land as "brownfield" (i.e. bad bad very bad, not superfund bad, but bad), allowing the government to pay below eminent domain prices (i.e. rock bottom prices, "either your signature or brains will be on this contract" negotiation).
3) finally you have this being "Green". So, no court or citizens can morally oppose this (or else you hate the Earth, bad person)
4 or 3B, because "Green" is a double, a gift that keeps on giving) because this is "Green" your developer friends will get further government subsidies for building.
Man, they are good at graft and bribery in Chicago.