Anthony Tsakopoulos owns a large piece of undeveloped land that is located on the south side of Highway 50, west of El Dorado Hills. He is famous for working deals with the county planning departments, and the subject land is in eastern Sacramento County. Some of it has been dredged, most is just open range.
Side note: El Dorado County has been the vortex of a protracted political war between the locals, mostly conservative, and limosene liberals on the left. The left actually won the war, despite the conservative political demographics. The environmentalist elite, championed by former Palo Alto-based State Senator Byron Sher, kept El Dorado County in court for ten years fighting local development projects, infrastructure up-grades, and the El Dorado County General Plan. The voters finally approved a general plan by popular referendum.
Jeremy is correct in his assessment that a sports arena would be impossible to build in western El Dorado County. The environmentalist cabal still exists and would never allow it to happen.