Unpaved roads generate dust. There is nothing the County can do about dust. We sometimes use water when doing major work on our dirt roads, but we just do not have the resources to use water trucks every time a road is graded.
Arizona experiences extreme temperatures with the summer season being the longest of the year. The dry climate encourages rapid evaporation of moisture. The County does not own enough water trucks and does not have funds available to purchase additional water trucks nor the enormous amount of precious water to wet down dirt roads - when evaporation would occur in a very short time. Dust is a fact of life for most rural residents.