Worked on the GeoNet/delta repository to enhance the gauges data structure by adding CREX headers for JBTT and TPTT, updating the gauges.csv file to improve data standardization and usability. Focused on data management and file handling, the approach ensured that downstream analytics could reliably parse and utilize the updated CSV data without introducing parsing errors. The work maintained full traceability through detailed commit history, supporting robust version control practices. No major bugs were reported during this period, reflecting careful implementation. The project leveraged CSV as the primary data format, emphasizing structured data handling and consistent schema evolution within the repository.