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.
Seward is an unincorporated community in Winnebago County, Illinois, and is located west of Rockford. It is part of the Rockford, Illinois Metropolitan Statistical Area. In early 2007, a leak at Seward Ag caused the release of 38,000 to 40,000 pounds of anhydrous ammonia gas. This resulted in a full evacuation of the village until the next day. Ten people were treated for throat irritation at Rockford hospitals. Three cows and four pigs were killed because of exposure to anhydrous ammonia.