ST. PETERSBURG — The City Council has passed an ordinance scheduling a Nov. 6 referendum to modify the city’s charter parks and waterfront map.The change, which will affect the over-water portion of the Pier, was requested by Tampa Bay Watch. The nonprofit has signed a five-year lease — a period currently permitted under the city charter — to operate an education center on the Pier approach. The organization, though, would like a 10-year lease, similar to that allowed under the city charter at the Pier head and Pelican lot.The city recently signed a 10-year agreement with Chuck Prather, owner of the Birchwood on Beach Drive NE, to operate the Teak restaurant, the Pier Teaki rooftop bar and the Driftwood Cafe on the ground floor, all at the Pier head. Another 10-year lease also has been signed with Doc Ford’s Rum Bar & Grille to operate at the Pelican lot site. The lease with Tampa Bay Watch for 2,989 square feet was approved in May.St. Petersburg residents must approve the change to that would permit lease conformity for the entire area.