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City of Melissa Texas 2015 Comprehensive Plan Update Page 4.2 Chapter 4 Utilities Assessment Water Wastewater Service Provision Water Services Water service provision is an especially critical issue for all cities in North Central Texas. The availability of water has become an increasing concern throughout Texas. Not only is potable water a necessary commodity for drinking it is presently being used for irrigation systems. Potable water supply has become a major challenge in Melissa since the vast majority of new homes built within the City have in-ground sprinkler systems. The irrigation systems heavily tax the potable water supply during the dry summer months. Current information on Melissas water service is as follows Due to recent watering restrictions necessitated by the on-going regional drought current water usage in the City is slightly lower than historical usage. Current water usage in the City ranges from approximately 110 gallons per day gpd per capita during winter months to approximately 200 to 250 gpd per capita in summer months. Water usage will likely trend back to historical usage levels when water restrictions are lifted. As a result it is anticipated that future water usage in the City will range from approximately 125 gpd per capita during winter months to approximately 225 to 275 gpd per capita in summer months. The City is currently supplied with potable water from two groundwater wells with a total capacity of approximately 350 gallons per minute gpm a 12-inch water supply line through which potable water is purchased directly from the North Texas Municipal Water District with a contract limited capacity of 350 gpm and a 30-inch water supply line through which potable water is purchased from Greater Texoma Utility Authority with a design capacity of 5000 gpm. In total the City has a contractual water supply of approximately 5700 gpm or 8.2 million gallons per day. Based on minimum state standards this is a sufficient water supply to provide adequate service to approximately 9500 customers. Given the mix of residential and commercial customers anticipated in the City of Melissa this water supply is sufficient to meet typical suburban water supply demands for a population of approximately 17500 to 22500. The City currently has one 750000 water tower and approximately 1 million gallons of ground storage capacity. Minimum state standards for water tower storage range from 100 to 200 gallons per connection depending on the water systems pumping capacity. Based on the minimum state standards and given the anticipated mix of residential and commercial customers the City of Melissas water tower capacity can accommodate a population of 10000 to 20000 residents. The City currently has 1750000 of total storage capacity. Based on the minimum state standard of 200 gallons of total storage capacity per connection and given the anticipated mix of residential and commercial customers the City of Melissas total storage capacity can currently serve a population of approximately 20000 residents. The City of Melissas water distribution system currently has a total pumping capacity of approximately 3300 gallons per minute. Minimum state standards for pumping capacity range from 0.6 to 2.0 gpm per