(a). Permanent Employees: Each permanent employee has an anniversary date for pay purposes as herein provided. (b). If you would like to change your monthly contribution amount, you will need to access the Employee Self-Service (ESS) link to request the change.(2) Employee has been in paid status in the employment of the Contra Costa. The employee must have been employed full-time in the. Contra Costa Community College District for at least ten (10) years in a faculty position. 14.1.4. Please refer to the active and retiree forms if you are a current member.