AWWA ACE65341

This powerpoint presentation begins by listing sites of vulnerability that include: source water; reservoirs; treatment plants; finished water holding tanks; and, distribution system. The Event Monitor analyzes plant data, alarms on significant deviations from baseline, reports the Event Name if found, and learns the event fingerprint if not already in the Plant Event Library. Broad Spectrum Analysis is the key to detecting significant events whether they are anticipated or not. A two-step patented process is used. Trigger when deviations indicate agent or event. Classify agent or event in response to Trigger. During normal operation, process deviations are not larger than 1 on the trigger vector derived from grouped variations from baseline operation. The 5 parameters condensed into a single signal become easy to interpret. Process variations grow quickly when a significant amount of contaminant is present. Agent Library provided by Hach. Currently has over 30 key agents. More will be added in the future. Plant Library learned on site for each location. The Agent Library is searched first then the Plant Library. If no matches are found an unknown alarm is reported. The presentation provides a case study on a collaborative project between the U.S. Geological Survey and several local utilities that uses this same work approach for source water.