Here are five things we suggest residents living in flood zones should keep in mind while we all wait and see what happens next on the Ottawa River, 1. If flood waters have reached the level of your well head, or covered it, do not drink water from that well until the well water has been tested and you can’t test the water until the river has receded a significant amount more. 2. Ottawa Public Health has outlined clear steps that need to be taken before well water is safe again for drinking.