(h-2) Upon completion of the study in Sec. 401.207(h-1) the commission shall by rule establish a reasonable rate of return on disposal expenses for the compact facility license holder, not to exceed 30 percent. If the commission finds that the license holder is recouping a return exceeding this amount, the commission shall raise the surcharge under Sec. 401.207(h) to a level sufficient to bring the license holder's return within the limits established under this section. The commission may review the license holder's return and make adjustments to the surcharge periodically, but not more than once in a given year.