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.
Volcano (formerly, Soldier's Gulch and The Volcano) is an unincorporated community in Amador County, California. It lies at an elevation of 2070 feet. The current population is approximately 85. It is located at 38°26′35″N 120°37′51″W / 38.44306°N 120.63083°W / 38.44306; -120.63083, just north of Pine Grove. The town is registered as California Historical Landmark #29. The community is in ZIP code 95689 and area code 209.