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.
Rock Hill is the largest city in York County, South Carolina, United States, and the fourth largest city in the state. The 2008 population estimate was 67,339 residents. Rock Hill is located at 34°56′17″N 81°1′34″W / 34.93806°N 81.02611°W / 34.93806; -81.02611, approximately 15 miles south of Charlotte, North Carolina and approximately 70 miles north of Columbia.