1. (a) The owner shall produce an inundation map in pdf format to provide the local emergency responders with a tool for planning evacuation procedures.
2. (b) The inundation map shall delineate the area impacted by a potential dam failure, as determined by the breach analysis required by Env-Wr 502.

3. (c) The inundation map shall meet the following criteria:

   1. (1) The map(s) shall be at an appropriate scale to show sufficient detail of all impacted areas, but at a minimum scale of 1:2,000;
   2. (2) Residences, commercial, and industrial structures or clusters of structures, when located in close proximity to each other within the inundation area shall be shown on the most current aerial photography available at the time the map is produced;
   3. (3) Roads within the inundation area and within at least 0.5 mile from the exterior boundary of the inundation area shall be shown and clearly labeled;
   4. (4) The breach wave arrival time and breach wave peak time for critical areas including, at a minimum, those outlined in (2) and (3), above, shall be shown;
   5. (5) Peak breach wave velocities at critical areas shall be shown;
   6. (6) Peak breach wave depths above ground surface at critical structures and areas shall be shown with specific reference to depths of flooding above first floor elevations of habitable structures when present;
   7. (7) City or town boundaries shall be shown;
   8. (8) The map(s) shall depict the inundation area of both the sunny day flow failure and the 100-year design event flow failure scenarios;
   9. (9) The date on which the map was prepared shall be included on the map; and
   10. (10) The date that the breach analyses for the inundation depicted on the map(s) were approved by the department.
4. (d) If the inundation map set consists of 3 or more pages, an index map shall be provided which clearly directs the user to the appropriate map for a given area.

Source. #1716, eff 2-20-81; ss by #2207, eff 12-13-82; ss by #2900, eff 11-7-84; rpld by #4534, eff 11-30-88 New. #6462-B, eff 2-21-97 (from Env-Wr 504.01); ss by #8285, INTERIM, eff 2-21-05, EXPIRES: 8-20-05; ss by #8414, eff 8-20-04; ss by #10510, eff 1-22-14; ss by #13980, eff 5-24-24