Barley Lime Fiesta Salad

2 cups water

1/2 (15 ounce) can black beans, rinsed and drained

1/2 green bell pepper, chopped

1/2 red bell pepper, chopped

1 (8 3/4 ounce) can whole kernel corn, drained

1 stalk celery, chopped

1 small red onion, chopped

1 large carrot, chopped

3/4 chipotle pepper in adobo sauce, finely chopped, or to taste

1 tablespoon canola oil

1/2 teaspoon salt

1/2 teaspoon ground black pepper

1/2 teaspoon ground cumin

1/4 cup water

2 tablespoons light corn syrup, or to taste

1 tablespoon canola oil, or to taste

1 tablespoon lime juice, or to taste

1 tablespoon lemon juice, or to taste

1/4 cup chopped fresh cilantro

1 teaspoon distilled white vinegar, or to taste

onion powder, or to taste