The Department of Developmental Services is responsible for the operation and maintenance of the facilities under its control, including the four state-owned and operated 24-hour care facilities and their buildings, grounds and infrastructure. The four active state-owned facilities comprise approximately 4.7 million gross square feet on 1,948 acres. The facilities are used to aid the Department's mission to provide medical, dental, and nursing care; supervision; active treatment; education and vocational training for residents with developmental disabilities. The Department also leases one small state-operated community facility but is not responsible for infrastructure or maintenance of this facility.