Finished troubleshooting intermittent power issues in detached garage workshop. Discovered rodent damage to underground feeder cable approximately 18 inches below grade. Replaced damaged section with waterproof direct burial cable and added metal conduit protection. Installed junction boxes at transition points for future serviceability. Added GFCI protection to all garage outlets and verified proper grounding. Recommended quarterly visual inspection of exposed wiring to customer due to continued rodent activity in area.