Sealing of equipment below the floodline, such as electrical conduits. Holes or unsealed penetrations in floors and walls between flood areas. Adequacy of watertight doors between flood areas. Operable sump pumps and level alarm circuits. Sources of potential internal flooding that are not analyzed or not adequately maintained, for example failure of flexible piping expansion joints, failure of fire protection system sprinklers, roof leaks, rest room backups, and failure of service water lines.
Operable sump pumps with adequate capacity to limit design flooding.
Operable level alarm circuits. For those areas where operator actions are credited, verify that the procedures such as abnormal or emergency procedures for coping with flooding, can reasonably be used to achieve the desired actions, including whether the flooding event could limit or preclude the required operator actions. 02.03 Problem Identification and Resolution . Flooding has the potential to cause common mode failure of equipment in multiple areas. Verify that the licensee has entered the problems identified during the inspection in the licensee's corrective action program.