The University is seeking to divest about $500 million dollars of a real estate portfolio that includes $2 billion in current assets as well as $3 billion in future commitments.

Harvard’s plans to sell a 62.5-acre parcel of land to the Town of Weston, Mass. have been temporarily derailed after engineers discovered high levels of lead and arsenic in the soil, and the sale—nearly a month overdue—has been put on hold until the University’s cleanup of the land.