In Illinois, private water wells and closed loop geothermal wells must be constructed or renovated by an Illinois Department of Public Health-licensed well contractor. Before work can begin on wells in Champaign County, a construction permit must be obtained from our office. Contractors must complete an application and submit it for approval along with the appropriate permit fee. Applications are processed within 15 days. After application approval, contractors must provide our office with a minimum of 48 hours' notice before starting work on a well. Our staff will conduct inspections to determine that wells have been installed according to code.