CAMDENTON, Mo. (AP) — Homeowners near Missouri's Lake of the Ozarks fear a decision by federal regulators could jeopardize thousands of homes, gazebos, boathouses and other buildings.The lake is formed by a dam owned by Ameren Missouri, which was required to develop a plan for the lake's shoreline. The utility says thousands of homes and other buildings appear to encroach on property designated for the dam. The Federal Energy Regulatory Commission says many of the homes and buildings should go.It has triggered panic in the area's lakefront communities and led to a growing battle involving regulators, the utility company, land attorneys and the state's congressional delegation.Federal regulators say the buildings can interfere with scenic, recreational and environmental benefits and note that the commission does not support residential development within dam projects.