The City of Garland is one of the original NTMWD member cities and was the first member city to receive water from the district on November 15, 1956. Wholesale treated water is purchased from the North Texas Municipal Water District (NTMWD).  The water district draws raw water from Lake Lavon, Lake Cooper, and Lake Texoma. Because of the elevation differences within Garland, the water distribution system is divided into two pressure zones, the east zone and the west zone.  Within each zone emergency power generators have been installed to provide uninterrupted service to meet Garland's daily water demand. Garland’s water system is capable of storing 44.35 million gallons of treated water with a pumping capacity of 229.94 million gallons per day. With the fiscal year of 2004-2005 completed the water distribution system finished with 1,086 miles of water mains, 7,112 fire hydrants in service, with 68,455 metered service connections. Garland purchased 12.7 billion gallons of treated water with a maximum pumpage day of 60.4 million gallons and a minimum pumpage day of 19.7 million gallons with an average pumage day of 34.7 million gallons. The wastewater collection system includes 985 miles of sewer mains and 13 sewer lift stations with 64,420 active sewer conections. Wastewater is transported to Garland’s two Water Recycling Centers for treatment.  The City of Garland Water Utilities employees take pride in delivering safe, “superior” quality potable drinking water to our customers.  "Superior" is the rating of our water system by the Texas Commission on Environmental Quality (TCEQ).  This rating reflects the hard work and efforts of our employees to protect your health by delivering and maintaining safe and reliable drinking water along with the North Texas Municipal Water District.