CALLAWAY ENERGY CENTER
Buried Essential Service Water (ESW) Piping Replacement Project
- First-of-a-kind project successfully completed from inception to completion in less than two years including design, procurement, regulatory approval, installation and return to service
- Life of the plant solution to MIC problems in the existing buried piping that was replaced and improved system hydraulic performance
- Industry recognized innovative project that earned the NEI Top Industry Practice (TIP) award
The Callaway nuclear plant Essential Service Water (ESW) system was originally designed and constructed using carbon steel piping. In the early 2000s, numerous instances of pinhole leaks, pitting, and other localized degradation of the ESW system piping due to erosion, corrosion and microbiologically induced corrosion (MIC) were identified.
In early 2007, the Callaway plant initiated a project to replace the existing buried carbon steel ESW system piping.
It was decided that the replacement buried ESW piping would be made of High Density Polyethylene (HDPE) due to its resistance to erosion, corrosion, and microbiologically induced corrosion (MIC). While HDPE piping had been used in several nuclear plants (Callaway included), this project was the first use of HDPE piping in a nuclear safety-related application at a nuclear power plant in the United States.
- Engineering and design
- Procurement and installation specifications
- Regulatory approval assistance
- Construction support
For more information about our services, please visit our Nuclear Power page.