Hubei Province, Huangshi City, a certain gold mine tailings pond project, with a designed capacity of 1.6 million m³. The tailings pond has been filled and operation has ceased. According to national regulations, a waterproof integrity test is required for the bottom liner before ecological sealing. The field used the two-electrode testing method, and data analysis revealed anomalies. Surrounding groundwater and soil testing data are within normal limits.