(b) If the Grievance Board finds that the grievance is meritorious, the Board shall have the authority within the limitations of the authority of the head of the agency, to direct the agency:

1. (1) To correct any official personnel record relating to the grievant which the Board finds to be inaccurate, erroneous, or falsely prejudicial;
2. (2) To reverse and administrative decision denying the grievant compensation including related within-class salary increases pursuant to section 625 of the Act or any other perquisite of employment authorized by law or regulation when the Board finds that such denial was arbitrary, capricious, or contrary to law or regulation;
3. (3) To retain in service and employee whose termination would be in consequence of the matter by which the employee is aggrieved;
4. (4) To reinstate with back pay, under applicable law and regulations, an employee where it is clearly established that the separation or suspension without pay of the employee was unjustified or unwarranted;
5. (5) To order an extension of the time of an employee's eligibility for promotion to a higher class where the employee suffered career impairment in consequence of the matter by which the employee is aggrieved;
6. (6) To order that an employee be provided with facilities relating to the physical working environment which the employee has been denied arbitrarily, capriciously or in violation of applicable regulation.