JOB DESCRIPTION. PART I. SUMMARY OF POSITION. This assignment performs the full range of basic tasks in the cleaning and maintenance of District buildings. Substitute custodians will be placed on an on-call list. When substitute custodians are called, they will be told which building to report to, who to report to, and what time to report. PART II. MINIMUM KNOWLEDGE, SKILLS AND ABILITIES. A. EDUCATION AND EXPERIENCE. High School Diploma or Equiva...