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. Post navigation Previous: Previous post: There are untapped water resources that are less environmentally damaging that could be accessed without building the Marvin Nichols Reservoir. Next: Next post: The proposed Marvin Nichols Reservoir is unnecessary because of technological advancements and innovation in conservation and water reuse.