Public utilities provide electric, gas, water or telephone service to customers in a specified area. Utilities have a duty to provide safe and adequate service on reasonable terms to anyone who lives within the service area on without discriminating between customers. Because most utilities operate in near monopolistic conditions, they can be heavily regulated by local, state, and federal authorities. Generally, the local and state agencies are called Public Service Commissions (PSC) or Public Utility Commissions (PUC). Municipal Utilities and Rural Electric Cooperatives may be unregulated though.
Lewisville is a city in Denton County, Texas in the U.S. state of Texas. As of the 2000 census the city had a total population of 77,737. With strong population growth continuing into the new millennium, the U.S. Census Bureau gives a 2008 population estimate of 101,624. Lewisville is one of the oldest incorporated cities (incorporated in 1925) in the northern area of the Dallas-Fort Worth Metroplex, but it remained a small rural town with just a few thousand people as late as the early 1970s.