Below is the form used to file code enforcement complaints within the County's jurisdiction. Complete the appropriate information and click the SUBMIT button.Briefly explain the facts upon which you are basing your complaint (how, when, and why you believe you are a victim of an unfair business practice). Should you desire to complete your report in writing, you may mail or bring this form to the same address. A responsive pleading to a complaint or cross-complaint must be filed and served within thirty (30) days of service of the complaint or cross-complaint. Contra Costa College Procedures Handbook. All college policies and procedures are recorded in the Colleges Procedures Handbook. The Contra Costa County Employment and Human Services Department (EHSD) is recruiting to fill Social Worker II vacancies within Aging and Adult Services. Guaranty, with all items properly filled out in non-erasable permanent ink. Contra Costa County Clerk.