The night before you plan on serving the salad, put the wheat berries in a large pot, cover them with 4 inches of water, and soak them, covered, for 8 hours or overnight, in the refrigerator. This shaves an hour off the berries’ cooking time.
The next day, pour out the soaking water, cover the berries with an inch or so of water, then add the salt and bring to a boil. Reduce the heat and simmer, covered, for about 1 hour or until the berries are tender but still very chewy. If you haven’t soaked the berries overnight, simmer them for an additional 1 hour or until done. You will have about 5 cups of wheat berries.
While the berries are simmering, toss the peppers, zucchini, and onion in a large bowl.
Prepare the vinaigrette by briskly stirring together the vinegar, olive oil, crushed garlic, mustard, sugar, and salt and pepper in a small bowl.
When the berries are tender, drain the water and add them to the vegetables, stirring gently with a large spoon. Toss with the vinaigrette, parsley, basil, chives, and goat cheese and serve at room temperature.