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The North Central Arizona Water Demand Study (Phase I) assesses water demand and supply for 15 non-reservation communities on the Coconino Plateau. In 2000, total demand was approximately 5,842 million gallons, with potable water accounting for 80% and reclaimed wastewater for 16%. The report highlights a significant reliance on groundwater, often from deep and costly wells, and the critical role of wastewater reclamation in communities like Tusayan, where it meets 40% of demand. It identifies a wide disparity in conservation efforts, with Flagstaff having the most extensive program and Page lacking a serious initiative. The document concludes by proposing a Phase II forecasting methodology that uses population projections and water-use models to create baseline, moderate, and aggressive conservation scenarios.