(Portland, OR)  --  Portland is planning to spend nearly five-million dollars this fiscal year to help clean up a superfund site.  The Portland Tribune reports that the funds would go to the Portland Harbor Superfund cleanup and mitigation project.  The funding would also kick off a public engagement process and help partner with other governments on baseline sampling in the harbor and evaluate high-priority restoration sites.  It is still not clear how much the city will ultimately pay for the project, but the EPA estimates cleanup costs to be over just one-billion dollars.  Those costs will be paid by over 150 responsible parties who have contributed to polluting the site.