LOUISVILLE, Kentucky, June 8 -- LG&E and KU Energy, a subsidiary of PPL, issued the following news release: * * * - Former coal-fired power plant's footprint to become grassy field * * * Today marked the end to a historic chapter for Louisville Gas and Electric Company when the company brought down the last standing portions -- the boiler house and stacks -- of the now retired coal-fired Cane Run Generating Station, located in the southwest corner of Jefferson County. The plant generated i  more