Vogtle 1/2 - Does anyone have Carbon Steel Piping where the header interfaces with the buildings? Do you have corrosion/leak issues with these lines? If yes, what have you done to identify and combat the issue?

Farley

Hatch

Vogtle

Watts Bar - no issues with interface

Sequoyah - Same as WBN

Browns Ferry - Same, no issues with interface

Turkey Point - 

North Anna - Installed, no issues. 

Surry - Same as North Anna

St. Lucie - Carbon Steel, no interface issues. TB is all outdoors. Working on metalized coating. Type of coating system that is blasted on and dual flame and makes a coating that prevents corrosion. 

McGuire - No issues

Brunswick - had an issue. coating was degraded beneath a slab. had to excavate the flooring, was in the worst possible location. 

Recommended internal scoping and inspection to determine risk. Lake water is source.

Oconee -  

Harris - 

Catawba - No issues. 

HB Robinson - No issues. 

VC Summer - yes Carbon steel 

Farley

Hatch

Vogtle

Watts Bar - no issues with interface

Sequoyah - Same as WBN

Browns Ferry - Same, no issues with interface

Turkey Point - 

North Anna - Installed, no issues. 

Surry - Same as North Anna

St. Lucie - Carbon Steel, no interface issues. TB is all outdoors. Working on metalized coating. Type of coating system that is blasted on and dual flame and makes a coating that prevents corrosion. 

McGuire - No issues

Brunswick - had an issue. coating was degraded beneath a slab. had to excavate the flooring, was in the worst possible location. 

Recommended internal scoping and inspection to determine risk. Lake water is source.

Oconee -  

Harris - 

Catawba - No issues. 

HB Robinson - No issues. 

VC Summer - yes Carbon steel