Ongoing maintenance work of the county's on-site and regional groundwater monitoring wells: In the first half of the year, 18 regional monitoring wells and 70 on-site monitoring wells in the county were inspected and maintained. The maintenance and updates of the external appearance of eight monitoring wells have been completed, including P00014 (Wenguang Elementary School Hukou Branch), P00104 (Upstream of Yunlin Science and Technology Industrial Park), P00290 (Styrene Monomer Plant 1 of Formosa Plastics), P00481 (Douliu #7), P00424 (Feng'an Elementary School), P00170 (Huwei Park MW3 in Central Taiwan Science and Industrial Park), P00171 (Huwei Park HW-MW5 in Central Taiwan Science and Industrial Park), and P00294 (Polypropylene Plant 3 of Nan Ya Plastics). Four monitoring wells have been repaired, including P00006 (Minglun Elementary School), P00282 (Dajiang Industrial Park (DJ-EPA02)), P00283 (Dajiang Industrial Park (DJ-EPA03)), and P00255 (P00255). A total of 25 monitoring wells were assessed, including 4 regional monitoring wells and 21 on-site monitoring wells, meeting the requirements of the plan. Further assessments and debris exclusion lists will be evaluated in the future. Agricultural land soil monitoring and synchronous sampling operations: This year, the agricultural land soil sampling related operations must be carried out, including periodic monitoring of heavy metals in agricultural land soil and synchronous sampling investigation of heavy metals in agricultural land soil. As of the first work report, a total of 2 regular monitoring operations and 2 synchronous crop sampling pollution investigation operations have been completed, and there are currently no abnormal conditions. Prevention of agricultural land pollution and investigation of the sediment source in irrigation channels: In order to cooperate with the Environmental Protection Administration's promotion of agricultural land pollution prevention work, this county has carried out regular work to prevent agricultural land pollution based on the pollution potential zoning statistics of irrigation teams in various counties and cities nationwide. A total of 13 environmental surveys and assessments have been completed, including 53 irrigation water samplings and 13 soil samplings in excellent protection areas, and 18 irrigation water samplings and 18 soil samplings in pollution warning areas. A total of 71 irrigation water quality samplings and 31 soil samplings have been completed. The investigation of sediment sources in irrigation channels aims to investigate the causes of pollution in water bodies that exceed the upper limit in this county. One channel environmental survey and assessment have been completed, along with 15 heavy metal analyses of water quality and 20 resin placements. Based on the current water quality analysis results, there is no situation where the water quality standards for irrigation water have been exceeded. Sediment sampling and water quality retesting point planning will be carried out after the resin bag analysis results are obtained. Storage system management: Based on the pollution evaluation mechanism established by the Environmental Protection Administration, this project conducted leak detection and oil and gas testing on underground storage tank systems with high pollution potential. From March 20-21, 111, a total of 5 stations were tested, including Bridge South Gas Station, Mailiao Gas Station, Quanmin Gas Station, Maguang Gas Station, and Shuilin Gas Station. The results of the leak detection at these 5 stations did not show any abnormal conditions. In addition, a review was conducted for 8 counseling providers who had deficiencies in their operations during the 110-111 fiscal year. Three of them have not yet completed their improvements, and their progress will be continuously monitored. Emergency response operations: One case of emergency response and public petition regarding soil and groundwater has been completed. On February 20, 112, an emergency sampling and testing of the soil near the agricultural land of Fuchao Industrial Co., Ltd. (Huwei plant) was conducted, and the test results were all in compliance with relevant standards. This project assisted with the on-site sampling and analysis, and submitted the investigation report within the deadline. Administrative support work: This project has completed three "School Storytelling Promotion Events," which include short films on soil and water pollution conservation, introductions of picture books on soil and water pollution, and playing environmental protection tabletop games. In addition, regarding the promotion of the establishment of photovoltaic facilities and visits to agricultural landowners, a total of 10 visits have been completed. Two of the providers expressed their willingness to set up photovoltaic facilities, and follow-up contact will be continued, and relevant assistance will be provided.

Soil and Groundwater Pollution