The main purpose of this project was to perform the project of “Changhua County Agricultural Land Pollution Control Site Appropriate Improvement Plan - Tieshan, Jiali irrigation district – Improvement”. By means of soil dilution method and soil off-site disposal method with clean soil backfilled, the controlled sites could be relieved to control. Individual work items including submitting pollution improvement plans, monthly performance reports, daily activity logs and progress reports, hosting orientations to farms and landholders , inspecting agricultural land pollution control site. Additionally, site remediation, self-verification, third-part-verification, fertility recovered and finally relieving sites to control were implemented according to regulation. In addition to scheduled work and that relevant to contract, we also cooperated with EPA to ensure quality, control the progress, host evaluation and review meeting regularly. The achievements of this project included (1) We held 2 orientations to farms and landholders, (2) To continue the agricultural activities and achieve the goal for soil sustainability and maintain nation fitness, soil dilution method and soil off-site disposal method with clean soil backfilled were performed for 144 (25.8980 hectares) and 105 (16.3542 hectares) farmlands respectively, and soil fertility was recovered for these 248 sites.

Heavy metal pollution, Soil dilution method, Soil off-site disposal method with clean soil backfilled, Remediation in the polluted farmlands