California Code, Government Code - GOV § 50550

(a) Water mains, pipes, conduits, hydrants and other works or appliances which may be used for providing water service.

(b) Poles, posts, lines, pipes, conduits, lamps, and other works or appliances which may be used for providing electricity and electric service.

(c) Mains, pipes and other works and appliances which may be used for providing gas service.

(d) Poles, posts, lines, pipes, conduits, and other works or appliances for the purpose of supplying telephone or other communications.