Poached Salmon w/ Herb Vinaigrette

Ingredients

• 5 cups cold water
• 1 cup white wine
• 2 ribs celery
• 1 leek (white part only)
• 1 small onion
• 1 lemon
• 1 bay leaf
• 1 tsp whole peppercorns (white or black)
• 2 tsp kosher salt (or to taste)
• 1 sprig fresh dill
• 1 sprig fresh parsley
• 1 1/2 tbsp shallots
• 1 1/2 tbsp chives
• 1 1/2 tbsp capers
• 1 tbsp fresh dill
• 1/4 tsp garlic
• 1/2 lemon
• 1/3 cup extra-virgin olive oil
• kosher salt (to taste)
• freshly ground black pepper (to taste)
• four 5 oz coho salmon filets