The project definition and work classification meeting was taken place on 21 September,2007 and the proceedings including tasks of verification and certification investigation, the examination sites of soil and groundwater regular monitoring, establishment of database and assistance of inspection, details of public symposiums, etc. Besides, according to the contract, a project engineer was designated in EPB (Environmental Protection Bureau) to assist the project, and a car was offered as well. Before the end of this project, 31 December, 2008, each has successfully completed or exceeded the requirements of the work, which 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:
A.Verification and certification of the soil and groundwater pollution
1.The Implement of groundwater sampling on parcel 573, 574 at Zi-long Section in Tainan County which the result indicated that eight heavy metals and TPH (Total Petroleum Hydrocarbons) were all under normal conditions.
2.The construction of a monitoring well at Da-nei Jin-hua Co. was completed (the original monitoring wells destroyed) and the analysis result that only ammonia above the second category monitoring groundwater standards.
3.The inspection of soil pollution on parcel 961 at Ding-Dong Section in Yong-Kang City, Tainan County which the result of TPH was above the soil pollution control standards. In accordance with Soil and Groundwater Pollution Remediation Act Article 8, it was suggested that EPA (Environmental Protection Agency) requested polluters to take appropriate measures in order to avoid the expansion of pollution and improve contaminated soil.
B.Regular soil monitoring sites：
1.The analysis of regular soil monitoring sites, total 19 farmlands in this project including at Che-Lu-Chien Section, Da-Jia Section, Da-Zhai Section,Shan-Hua Section, were compared with the regular and the original monitoring results that most of them have relatively lower values. To integrate regular monitoring which including the first time investigation and the follow-up investigating by XRF with the second regular monitoring that survey results found that Zn was above or closer to the farmland soil monitoring standards on 4 parcels at Che-Lu-Chien Section, on 10 parcels at Da-Jia Section, on 4 parcels at Shan-Hua Sections. And Cu was closer to the farmland soil monitoring standards at Da-Jia Section. It was recommended that EPA continuously monitoring on the 19 parcels for the next yearly project.
2.About the soil Dioxin analysis, it was indicated the four sites investigation of Yong-Kang incinerator, Yong-Kang factory of Yi-Hong-Xing Steel Co. LMT, Shin-Ying factory of Gloria Material Teco and Yan-Shui factory of WALSIN Co. LMT this year, as the result that all dioxin concentration was greatly under the soil pollution control standards. In addition, it was no clear abnormal situation that compared with the monitoring result of Yong-Kang incinerator in 2006.
C.Regular groundwater monitoring total to 15 sites, including 28 monitoring wells. As the result showed that high concentration of Fe, Mn and NH3-N was often examined which is similar to the regional groundwater monitoring, in which high concentration of NH3-N in MW3 of CSSC in Guan-Tian and MW1 at Shan-Shang Landfill. We have no idea about what reason causes this by the analysis so far. So we suggest that EPB should follow up with surface water and private wells around these sites for the next annual project to control the groundwater condition and realize the probable cause. In addition, the second quarter regular groundwater monitoring of Jiu-Jing gas station at Yong-Kang found that the benzene concentration reached the second category groundwater pollution control standards. EPB has listed this site into the groundwater pollution control site, keeping watch by “Project of Soil and Groundwater Pollution Sites Verification and Investigation in Tainan, 2008”, and indicated to file the pollution control project before 15th May, 2009.
D.Gas stations inspection. It was indicated that audit 20 gas stations of 233, as the result that there were three unusual: benzene, xylene, TPH in the soil and benzene concentration in the groundwater of Jiu-Jing gas station at Ren-De interchange were above the soil and the second category groundwater pollution control standards; benzene concentration in the soil and groundwater of Shang-Zhun gas station in Guan-Tian were above the soil and the second category groundwater pollution control standards; in addition, TPH concentrations in soil of Tai-Da gas station in Sin-Ying were also exceeded soil pollution control standards. According to the investigation, EPA has announced Shang-Zhun and Tai-Da as the pollution control Site and will announce Jiu-jing gas station as the Pollution Remediation Site lately.
E.The contaminated groundwater restricted areas of pollution control equipment on behalf operation of 34 parcels at parcels at Yan-Xing Section in Yong-Kang was carried out during October 2007 to August 2008, total 11 months. On behalf operation period, the pollution control equipment was efficient well and effected to remove chlorine-containing organic compounds in groundwater. In addition, the test result of this site showed that the region still had pollutant, containing chlorine organic compounds.
F.The conservation of 62 regional monitoring wells were completed. 15 low hydraulic coefficient and silted monitoring wells including wells of sub-surface wastewater infiltration in Ren-De, Hao-Jian electroplate factory in Ren-Dea and construed wetlands in Ma-Dou were washed via air stripping. The current condition of the wells without abnormal.
G.Total to 154 investigation and sampling data were updated and uploaded to the EPA GIS database of soil and groundwater pollution sites.
H.To assist the EPA to conduct ”soil and groundwater pollution remediation act” Article 9, total 89 files about project setting, auditing the reports and filling database of groundwater pollution prevention and monitoring facilities in UST (underground storage tank) system. In addition, total 1325 files about regular monitoring reports were created and updated in the database in UST system.
I.It was indicated that doubt some of the people of Soil and Groundwater Pollution Remediation Act , were held total 3 seminars about gas station guidance.
