Proponents of a south county retirement community development claim it will bring economic vitality to the region, while opponents claim it will compromise the rural quality of the area. 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 Nevada County Planning Commission will consider the proposed project at 10 a.m. Thursday at the Eric Rood Administrative Center. If the commission approves the project it will come before the county’s board of supervisors for final consideration. Planning staff has recommended approval of …