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IV. Emergency Detection, Evaluation, and Classification <br /> Dam tenders perform a general inspection of the Elk River Dam on a daily basis, and a <br /> detailed inspection at least once a year using the inspection form in the Inspection, <br /> Operation, and Maintenance Plan. Every five years inspection of the dam is required of <br /> a professional engineer proficient in dam structure and safety. During these inspections <br /> situations that could lead to emergency conditions are closely evaluated. Comparison <br /> of data from one inspection to another can potentially reveal progression of issues. <br /> There are three emergency levels that correspond with the severity of a condition, as <br /> well as the degree of threat to life and/or property. These levels are detailed in steps <br /> below which outline the general procedures to be taken during an emergency situation. <br /> Step 1: Event Detection <br /> • Detect event <br /> • Assess situation <br /> Step 2: Emergency Level Determination <br /> • Table 2 on the following page provides guidance on determining the emergency <br /> level. The emergency levels are as follows: <br /> • Level 1 — Urgent; dam failure appears to be imminent or in progress <br /> • Level 2 — Potential dam failure situation; rapidly developing <br /> • Level 3 — Non-failure condition; slowly developing; high water <br /> • It may be necessary to consult with other parties prior to determining an <br /> emergency level. This may include the General Manager of Elk River Municipal <br /> Utilities, the DNR's State Dam Safety Engineer, or a private consulting engineer. <br /> Note: Timely determination of the appropriate emergency level is critical to <br /> maximize the available response time. <br /> Step 3: Notification and Communication <br /> • Level 1 — Activate Level 1 Emergency Notification Flowchart <br /> • Level 2 — Activate Level 2 Emergency Notification Flowchart <br /> • Level 3 — Activate Level 3 Emergency Notification Flowchart <br /> Step 4: Expected Actions <br /> • Level 1 — Save people; evacuate <br /> • Level 2 — Save dam; protective actions; potential evacuation warning <br /> • Level 3 — Monitor situation <br /> Step 5: Termination and Follow-up <br /> June 6, 2014 Page 7 <br /> 51 <br />