Upper Trinity Regional Water District LAKE LEVELS Home Lake Levels Lake Levels Three major reservoirs supply the water we treat and distribute to over 26 cities, towns and utilities. Below you can see the current water levels of these lakes. Newsletter Signup Upper Trinity Regional Water District Administration Building 900 North Kealy Avenue PO Box 305 Lewisville, TX 75067 (972) 219-1228 mail@utrwd.com Privacy Policy Open facebook page Open twitter page Open instagram page Open youtube page