Research Highlights
Threat Ensemble Vulnerability Assessment: CANARY, Event Detection SoftwareCANARY software has been piloted using data from two drinking water systems. In 2007, it was deployed at a Water Security Initiative* pilot utility, where it is operating in real time. Based on data analysis performed by CANARY, the pilot utility has incorporated new guidelines into its emergency response and consequence management plans. CANARY Software Information and AvailabilityCANARY software evaluates standard water quality data (e.g., free chlorine, pH, total organic carbon) over time and uses mathematical and statistical techniques to identify the onset of anomalous water quality incidents. Before using CANARY for the first time, historical utility data must be used to determine the natural variation of these water quality parameters. This allows the water utility to adapt CANARY to work accurately at multiple locations within the water distribution system and helps utility operators to understand the expected false alarm rates associated with CANARY and contamination incident detection.The CANARY software allows for:
CANARY assists water utilities in understanding the significance of large volumes of water quality data. It can automatically review incoming data regarding anomalous conditions and alert the water utility if further action is required. Not only can CANARY detect anomalous conditions resulting from contamination incidents, but it can detect unexpected “normal” events, such as a sensor malfunction or a pipe break. CANARY is a Windows program that runs on nearly any computer. It is written in the MATLAB® m-code language but also employs some Java programming language. The typical user will not need to know MATLAB®; however, modifications to the source code require knowledge of MATLAB® and/or Java. The CANARY software is expected to be available to a wider audience in 2008. It is not intended to replace commercially available software but to supplement existing software and motivate commercial development of similar products. It is hoped that the release of CANARY will also motivate additional research and development in this field. Future CANARY UpdatesSeveral research directions are currently being pursued to improve CANARY.
*The Water Security Initiative is an EPA-led project whose goal is to develop a robust monitoring and surveillance system that can improve contaminant detection at water utilities nationwide. |