1990 NEC-
680.22(a)- the following parts shall be bonded together:
(1) All metallic parts of the poolstrcture, including the reinforcing metal of the poolshell, coping stones, and deck.
(2) All forming shells.
(3) All metal fittings within or attached to the pool structure.
(4) Metal parts of electrical equipment associated with the pool water circulating system, including pump motors.
so, if the pool was built in 1996 at the latest, it should be bonded, because it was required in 1990, and i dont think they would skip a year of boding.
hope i helped