The Columbus Water Works (CWW) of Columbus, Georgia, had multiple information technology applications, each designed to improve productivity in a certain area of operation. CWW employed a laboratory information system (LIMS), a computerized managed maintenance system (CMMS), a human resources application, a finance application, a customer information system (CIS), and a supervisory control and data acquisition (SCADA) application, among others. As these applications had been purchased independently, the hardware required for each varied considerably. Also, as the number of applications grew, so did the duplicate information and data redundancy. This paper discusses the implementation of a Data Warehouse at CWW. All applications transfer their data through the Data Warehouse which reduces the number of transfers required, creates a historical data set for management reporting and minimizes the impact of upgrading individual applications. Includes figures.