A state agency has good cause to exceed the period it establishes for processing a permit application if:
(1) the number of permit applications to be processed exceeds by at least 15 percent the number of permit applications processed in the same quarter of the previous calendar year;
(2) the agency must rely on another public or private entity to process all or a part of the permit applications received by the agency, and the delay is caused by that entity; or
(3) other conditions exist that give the agency good cause for exceeding the established period.