During 2006, the Appalachian Regional Commission (ARC) conducted an evaluation of infrastructure and public works projects to determine if projects achieved their original objectives. The report is primarily concerned with economic development impacts; the job creation, business service, income growth, economic diversification, tax revenues, and changes in total business output that can be attributed to ARC investments. While residential water and sewer projects receive some analysis, changes in public health and quality of life that may have resulted from various projects are not quantified.