Convenience store giant 7-Eleven Hawaii is planning to replace an aging Windward Oahu store with a new structure and get rid of an existing cesspool in the process. The company plans to demolish its current 3,025-square-foot 7-Eleven store on Kamehameha Highway in Hauula, across from Hauula Beach Park, and replace it with a new building of the same size on the 19,396-square-foot lot.