After a flood, electrical equipment can usually be dried and put back into service with little damage. However, after cleaning, testing by an approved and qualified testing organization is required after flood damage. In most cases, we can easily verify the insulation resistance after the equipment and circuits have been dried and any seawater or chemical rinsed away. Using electrical power to dry the system can be very dangerous for these reasons. All fuses have to be replaced, and this is also a good opportunity for you to replace any old wiring.
Insulation resistance testing is critical because high-resistance shorts or leakages through wet insulation might be too small to blow fuses or trip circuit breakers but might cause gradual heating and fire.
If any pumps were running during the flood, an evaluation is needed to determine if there are any obstructions such as sand, silt or debris. Any engines that were submerged, whether or not they were running during the flood, need to be inspected for damage. Other Hazards
The sprinkler system will need to be inspected for damage, as well as the piping, valves and sprinkler heads. Additionally, the yard system and the sprinkler system should be pressure tested. This test will show any potential weak spots that could show up later during a fire.
Mold is an environmental hazard and can also effect electrical and water systems. Certifigroup can test for mold onsite or analyze mold kit samples from industrial, office or residential sources. Flood Damage Testing Resources
http://www.floodsmart.gov/floodsmart/pages/index.jsp
Learn about FEMA and Flood Insurance at the floodsmart.gov website.