There's a Special Town Meeting in Ridgefield tonight.  Residents will be deciding on whether the Aquifer Protection Agency should be under the jurisdiction of the Planning and Zoning Commission or to the soon to be elected Inland & Wetland Board.  Tonight's meeting is at 7:30pm in the Veterans Park Elementary School Auditorium.  The Board of Selectmen will convene their regularly scheduled meeting in the same location after the Special Town Meeting.  The vote is needed because the APA obligation is assigned in town ordinance to members of the Planning and Zoning Commission in their capacity as the Inland Wetlands Board.  A Charter revision approved last year separated the Board from the Commission.