The 144 in. dia. circulating water pipeline at Fermi 2 consists of two intake lines between the reservoir and condenser and two discharge lines between the condenser and two cooling towers. All four pipelines are prestressed concrete cylinder pipe (PCCP) manufactured in the early 1970s. SGH first developed a design basis document and specifications for carbon fiber-reinforced polymer (CFRP) pipeline repairs, determined failure risk, and prioritized repairs for distressed pipes in the East and West Supply Lines. SGH then provided engineering support for repairs to the East Supply Line.