There are untapped water resources that are less environmentally damaging that could be accessed without building the Marvin Nichols Reservoir. Post navigation Previous: Previous post: The Marvin Nichols Reservoir will force people in northeast Texas off their lands, out of their homes, and will devastate their regional economy.Next: Next post: North Texas already has enough water for essential uses far into the future. The Marvin Nichols Reservoir would be built to meet non-essential demands like watering lawns and filling swimming pools.