CACS has been providing services since 1968. We are accredited by the State of South Dakota as a mental health, addiction tre ... atment and child welfare agency. Our mission is to serve our clients with compassion and respect. All of our clinical staff is certified, licensed or are in the process of completing their professional credentials. Less experienced staff receive guidance regularly from their clinical supervisor. Charitable gifts to the CACS Endowment are very appreciated and can be sent directly to the Oahe Foundation at BankWest, 420 S. Pierre St., Pierre, SD 57501. With compassion and respect CACS provides addiction, behavioral and mental health programs and services for communities, families and individuals in central South Dakota. read more