Jinchang City, Gansu Province, rigid landfill project for hazardous waste, waterproofing structure: 1.5mm smooth geomembrane, 800g monofilament geotextile, 5000g waterproof mat, 6.3mm composite drainage mesh. After the waterproofing membrane is laid, an integrity test for waterproofing is conducted. The pool wall is tested using the electric spark method, and the pool bottom using the double electrode method. No leakage issues were found during the inspection.