Extra-help employees in the classifications of Park Aide and Pest Detection Specialist, shall have the right to return as extra-help in the same classification the next season, under the following conditions:
(1) Extra-help opportunities are available;
(2) The employee has performed satisfactorily;
(3) The employee has had no interim criminal convictions that are in conflict with the classification; and
(4) The employee meets the qualifications for the classification