The five-person Nevada County Planning Commission voiced a litany of concerns relating to a proposed retirement community development slated for south county, while supporters of the project greatly outnumbered the opponents at a public hearing Thursday. Rincon del Rio is a proposed Continuing Care Retirement Community Project located one-half mile east of Highway 49, just south of the Lake of the Pines community. The proposal calls for the development of a 215-acre site that encompasses four separate parcels near the Bear River that are currently undeveloped. The project as currently configured will provide 345 attached and detached housing units. The …