The project definition and work classification meeting was taken place on the date of signing and the proceedings included the supervision of this project and tasks of investigation, the examination fields of soil and groundwater regular monitoring, establishment of database and assistance of inspection, details of public symposiums, etc. Moreover, according to the contrast, a project engineer was designated in EPB (Environmental Protection Bureau) to assist the project, and a car was offered as well. The schedules and work summaries of this project are shown as Table 1, Table 2 and Figure 1. The execution and results of each work classification are illustrated as follows:
一、Verification and certification of the soil and groundwater pollution:
（一）
（二）In January and February, 2007, the examination of gas leaking at 12 gas stations was executed. The results showed that Formosa Sin-Ying Gas Station, Liou-Jia-Ding Gas Station and Nan-Sheng Gas Station had highly possibility of gas contamination.
（三）In March, 2007, the investigation on groundwater at Ga-Zen Gas Station in Ren-De was accomplished (12 samples) and the results revealed that toluene, benzene, naphthalene and phenols were above the groundwater pollution control standards.
（四）In March, 2007, the construction of 2 monitoring wells at Shan-Shang Landfill and 4 temporary wells at Jian-Gjyun Township Landfill was completed, and the sampling of groundwater was carried out later. The results demonstrated that Mn, NH3-N and TOC at Shan-Shang Landfill and Fe, Mn, As, Cl－, NH3-N, Hardness, SS and TOC at Jian-Gjyun Landfill were above the second category groundwater pollution monitoring standards. Additionally, as examined at Jian-Gjyun Landfill was also above the second category groundwater pollution control standards.
（五）In May, 2007, the second investigation of soil contamination, construction of temporary wells and sampling of groundwater at gas stations (Formosa Gas Station in Shin-Ying City, Liou-Jia-Ding Gas Station in Yon-Kang City and Nan-Shan Gas Station in Ren-De) were finished. The results of Nan-Shan Gas Station in Ren-De showed that benzene, xylene and TPH (Total Petroleum Hydrocarbons) in soil were above the soil pollution control standards and toluene, benzene and naphthalene in groundwater were above the second category groundwater pollution control standards.
（六）In May, 2007, the examination of soil contamination on parcel 597, 597-1, 597-2 at Er-Ciiao Section and on parcel 940 at Che-Lu-chien Section in Ren-De was completed (10 samples) and clarify that no contaminants exceeded the soil pollution monitoring standards.
（七）In June, 2007, the establishment of 2 monitoring wells and sampling of groundwater at Nan-Shan Gas Station in Ren-De was executed. The examination illustrated that benzene and phenols were above the second category groundwater pollution control standards. Therefore, Nan-Shan Gas Station in Ren-De should be declared as a pollution control site. In addition, according to “Soil and Groundwater Pollution Control Site Preliminary Assessment Regulations”, the site was defined as a pollution remediation site via preliminary assessment. It was suggested that EPB should send the site report to EPA (Environmental Protection Agency) to be reviewed and declared as a pollution remediation site, or notice Nan-Shan Gas Station to apply for a health risk assessment according to “Soil and Groundwater Pollution Control Site Preliminary Assessment Regulations” article 6.
（八）In July, 2007, the investigation of soil contamination on parcel 595-1 to 595-4 at Er-Ciiao Section and parcel 950 at Che-Lu-Chien Section in Ren-De was accomplished (7 samples). It was found that Cr was above the soil pollution monitoring standards on parcel 595-1 to 595-4 at Er-Ciiao Section and Zn was above the farmland soil monitoring standards on parcel 950 at Che-Lu-Chien Section.
（九）In August, 2007, the inspection of soil contamination on parcel 565-2, 567 and 611 at Pi-Tou Section in Ma-Dou and on parcel 2818 at Shan-Hua Section in Shan-Hua was carried out. The results revealed that Zn was above the farmland soil monitoring standards on parcel 611 at Pi-Tou Section in Ma-Dou.
（十）In September, 2007, the construction of temporary wells at Nan-Shan Gas Station in Ren-De and Chang-Jung Rd. Gas Station in Shin-Ying was built (total was 3 wells). Besides, the sampling of groundwater was also carried out. The results showed that benzene, toluene and naphthalene in groundwater were above the second category groundwater pollution control standards at Nan-Shan Gas Station.
（十一）In September, 2007, total 3 temporary wells were sealed at Formosa Gas Station in Shin-Ying City and Liou-Jia-Ding Gas Station in Yong-Kang City.
二、Regular soil monitoring: In the work classification, the results indicated that Zn (in the center of farmland and at the water entrance), Cu (at the water entrance) and Pb (at the water entrance) on parcel 950 at Che-Lu-Chien Section and Zn on parcel 2818 at Shan-Hua Section were even above the farmland soil pollution standards. In accordance with the request of EPB, the following step was to investigate the soil contamination of parcel 950 at Che-Lu-Chien Section and parcel 2818 at Shan-Hua Section. The investigation indicated that Zn on parcel 950 at Che-Lu-Chien Section was above the farmland soil monitoring standards and all heavy metals were under the farmland soil monitoring standards on parcel 2818 at Shan-Hua Section because of the soil remediation via excavation and dilution by Hsu-Cheng Ltd in their lease.
三、Regular groundwater monitoring: In this year, 2 times of regular groundwater monitoring were carried out and the results showed that high concentration of Fe, Mn and NH3-N was often examined which is similar to the regional groundwater monitoring. It was supposed that the reason for high concentration of Fe and Mn was associated with the regional geology and NH3-N was related to the agriculture or other human being activities in the region. Besides, the results of high chlorite, EC (electric conductivity), sulfate and hardness in groundwater in Pei-Men and Chian-Chun above the groundwater pollution monitoring standards were inferred from the vicinity of coast.
四、The first conservation of 36 regional monitoring wells was carried out during November 9 to November 20 in 2006 and the second was during May 23 to May 28 in 2007. While making the second maintenance, 5 low hydraulic coefficient and silty monitoring wells (Ching-Liao elementary school, Chai-Kang elementary school, Guan-Tian elementary school, Pei-Mem high school, Shan-Hua elementary school) were washed via air stripping.
五、The 72 investigation and sampling data, 45 regular soil monitoring data and 58 regular groundwater monitoring data were updated and uploaded to the EPA GIS database of soil and groundwater pollution sites.
六、Total 462 files about regular monitoring reports were created and updated in the database of groundwater pollution prevention and monitoring facilities in UST (underground storage tank) system.
七、Association with the declaration of the implementation of revisions of article 8 and 9 in “Soil and Groundwater Pollution Remediation Act”, a legislation symposium was held in the auditorium in Southern Tainan Science Park Administration on April 30, 2007.
