Sichuan Mianyang pesticide factory's soil and ecological restoration project, covering an area of 330,000 square meters. The anti-seepage system consists of a single-layer 2.0mm geotextile membrane. The topsoil, 80mm thick, is then applied. Post-spread, the integrity of the anti-seepage membrane in the restoration area was tested and found to be effective. Three areas of mechanical damage were identified, and after repairs to the leakage points, the area passed a retest.