Salt Water Flood Damage - Electrical Wiring
A relative's home was flooded during Hurricane Sandy. The surge of water from the Great South Bay pushed the salt water level inside his home to a point just above the electrical outlets along the bottom of the walls of the first floor. The junction boxes in the crawl space under the first floor went under.
The main panel was well above the level of the water and he turned off the main breaker prior to the water level rising in the home. The home wiring is a mixture of BX and Romex.
Is there advice available as what electrical work must be done? The walls are stripped of insulation and sheetrock 4' above floor level. I did not see any references to this situation in the NEC.
Should the junction boxes be replaced? Should the wire that has been under water be replaced? Any info or advice is greatly appreciated.