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In recent years, due to the EPA's ongoing efforts to carry out the gas station pollution inspection program, many gas station operators have been included in the inspection and tracking object, from the basic monitoring facilities, "monitoring tube" to detect, so that the soil gas concentration anomalies, If the concentration of benzene, toluene, ethylbenzene, xylene (BTEX) and total petroleum hydrocarbon (TPH) is higher than the control standard after the soil samples are sampled and analyzed, It will be published in the notice, and the deadline for the proposed pollution improvement plan, to improve pollution operations. The gas station in this research site is a typical pollution site declared by the environmental protection authorities into the sampling survey. On December 11, 2014, the Miaoli County Environmental Protection Bureau entered the investigation and sampling. On May 15, 2015, Gas station operators to inform the soil pollutants TPH (total oil and hydrocarbons) over the control standards, and then actively face the treatment of the industry, consult the environmental consultancy company " Hong-De-Ei Technology Co., Ltd." to quickly assist the industry to start soil pollution remediation work, After the selection, discussion, planning, selection and implementation of pollution improvement methods, soil pollution has been substantially improved. On September 10, 2016, Miaoli County EPB's entered the field to improve the sampling verification, the soil sample analysis results passed the test standard, on February 8, 2017 officially made Miaoli County EPB's issued a release document. The site of the study from May 15, 2015 the EPB's issued a letter to inform the soil pollution exceeded, to February 8, 2017 officially get EPB's released deregulation documents, spent a total of 635 days, nearly two years to make the gas station deregulation. This study will focus on the field of soil pollution sources, the selection of pollution control methods, the monitoring methods of the environment, the actual implementation of the improvement process and the results. (excavation treatment + soil farming method + soil gas extraction method) and alternative method (soils replacement), the industry considerations: 1. Construction time, 2. Remediation cost 3 . The pollutants are indeed removed, and so on three considerations for the selection of remediation methods of assessment indicators, the main method and alternative methods of assessment analysis and comparison, to explore the case of pollution improvement method, the results are realistic, but also can make this Type of gas station pollution site, there is a real improvement in the success of the case reference comparison. After the analysis of the results of the analysis shows that the case of the actual selection of gas stations in the alternative method (soils replacement), in the construction time, the cost of remediation and pollutants are indeed removed on the three major demands, can meet the requirements of the owners, and finally let the case in the gas station to lift the EPB's tube.
Keywords: gas station pollution inspection , gas pollution at gas stations , pollution improvement method selection , soils replacement , the pollutants are indeed removed, excavation.
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