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4 DETECTION STRATEGIES <br /> This section contains strategies that can be used to aid in the detection of malevolent acts or natural hazards that threaten <br /> the security or resilience of the system. <br /> List the detection strategies and methods your utility uses to aid in the detection of malevolent acts or natural hazards. <br /> Also list the corresponding procedure to be used if the threat is detected. <br /> Detection Strategies <br /> Threat Detection Method Procedure <br /> Unauthorized entry 9 Alarm from intrusion detection system On call person response Call 911 <br /> SCADA system <br /> Source water contamination 9 National Response Center notifications Source Water Contamination Incident <br /> • Notification from 911 for releases Response Plan <br /> resulting from transportation accidents <br /> Distribution system Customer complaint surveillance Distribution System Contamination <br /> contamination Public health surveillance Response Procedure <br /> Cyber intrusion Notification of malware/intrusion from Cyber Incident Action Checklist <br /> scheduled antivirus scans <br /> • Notification from utility staff <br /> Hazardous chemical 9 Chlorine gas in air monitors On call person call out, Call Fire <br /> release 9 SCADA call out Department <br /> Power outage Notification from energy provider Generator Start-up Checklist <br /> • Alarm from line power sensor <br /> • SCADA call out <br /> Other <br /> Other <br />