Bring the water to a boil in a medium saucepan over medium-high heat. Add rice and 3/4 teaspoon salt; cover, reduce heat, and simmer 15 minutes or until liquid is absorbed. Remove from heat; fluff rice with a fork. Cool completely.
Combine 1/4 teaspoon salt, vinegar, and next 4 ingredients (vinegar through pepper), stirring with a whisk. Combine rice, vinegar mixture, orange sections, and remaining ingredients; toss gently to combine.