Cook bacon in a Dutch oven until lightly browned. Add onion, celery and garlic; saute until tender. Add water and next 7 ingredients.
Cook , uncovered, over medium heat 20 minutes or until potatoes are tende.
Drain clams; reserve liquid. Add cornstarch to liquid; stir until smooth. Stir clams and liquid into vegetable mixture. Bring to a boil over medium heat, stirring constantly; cook 1 minutes or until slightly thickened.