ABSTRACT

The utilities sector (22) comprises establishments engaged in the provision of the following utility services: electric power, natural gas, steam supply, water supply, and sewage removal. Within this sector, specific activities associated with utility services provided vary by function: electric power includes generation, transmission, and distribution; natural gas includes distribution; steam supply includes provision and distribution; water supply includes treatment and distribution; and sewage removal includes collection, treatment, anddisposal ofwaste through sewer systems and sewage treatment facilities. The utilities sector is composed of the following subsectors:

Electrical power generation, transmission, and distribution (2211) Electric power generation (22111)

Hydroelectric power generation (221111) Fossil fuel electrical power generation (221112) Nuclear power generation (221113) Electric power transmission, control, and generation (22112)

Natural gas distribution (2212) Water, sewage, and other systems (2213)

Simple actions of walking into a restroom, turning on the light, and washing your hands use the products of perhaps four different utilities. Electricity powers the light, water supply systems provide water for washing, wastewater treatment plants treat the sewage, and natural gas or electricity heats the water. Each of the various segments within the utilities sector is distinctly different.