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.
Delmita is an unincorporated community in Starr County, Texas, United States. Its elevation is 272 feet (83 m). Although Delmita is unincorporated, it has a post office, with the ZIP code of 78536. Originally founded as Zaragosa in 1919, the community's name was changed to Delmita on 1931-04-01 due to confusion with the Reeves County community of Saragosa. The community's first post office was established soon after the community itself was, but a new post office was constructed in 1991. Delmita's importance has fallen through the years; in 1940, it was the most important community in the northeastern part of the county, but it has since been overshadowed by San Isidro.