Department of Public Health in Ottawa County, MI The Ottawa Department of Public Health provides your community MANY services! Much of what we do is mandated by state and local codes. Other services are provided based on community needs. Services include environmental health programs protecting land and water and ensuring safe food; health promotion programs reducing disease and encouraging good health; and clinic services preventing unintended pregnancy and the spread of illnesses through prevention, treatment and investigation. Public Health - Prevent. Promote. Protect. Mission Ottawa County Department of Public Health will assure conditions in which all people can achieve optimum health. Vision Healthy People.