Each extra-help employee shall have the right to inspect and review any official record relating to their performance or to a grievance concerning the employee that is kept or maintained by the County in the Human Resources Department. The contents of such records shall be made available to the extra-help employee for inspection and review at reasonable intervals during the regular business hours of the County Human Resources Department. The extra-help employee’s designated representative may also review the personnel file with specific written authorization from the extra-help employee.