PB10133

109

11,500 千元

2020/01/01

2020/12/20

高靖閔

臺中市政府環境保護局

楊祖慧

靖業工程顧問股份有限公司

土壤及地下水

土壤及地下水、緊急應變

soil and groundwater, monitoring wells, emergency treatment and investigation

鄭景智

黃琬慈

04-24618688#

wendy.huang@jea.com.tw

為掌握土壤及地下水品質現況，臺中市政府環境保護局（以下簡稱環保局）除針對轄區土壤及地下水執行定期監測、工廠土壤品質調查、緊急事件應變調查、地下儲槽土壤氣體查證外，也進行污染場址驗證、監測井維護管理、宣導活動辦理，由「109年度土壤及地下水污染調查及查證工作計畫-臺中市」（以下簡稱本計畫）執行相關工作，計畫執行期程為108年12月27日至109年12月20日，本計畫各工作單元執行成果摘述如下: 一、轄內公告事業調查作業 完成1場高污染潛勢工廠預防輔導及3場次公告事業用地查證作業，其中2場分別檢測出土壤重金屬鎳或土壤總石油碳氫化合物超過法規標準值情況，建議予以列管。 二、加油站查核 本年度3次(1、5、9月) 地下儲槽線上申報分別於2月、6月及9月完成審查，申報率及審查率均達100%。此外，完成共11站地下儲槽查核及3支測漏管土壤氣體監測作業，其中2家污染潛勢分級以達A級，今年度執行用地查證作業。 三、地下水監測井設置與維護 本年度上、下半年分別完成205口監測井巡查作業，於修繕維護作業中，完成井況評估35口，監測井維護18口、井體設施修復9口、監測井再次完井18口、井中異物排除5口、5口廢井作業及1口區域性監測井設置作業。 完成合計4口次地下水豐枯水期定期監測作業，為大里區光正路地下水污染場址下游之B00113及L00065監測井，2口監測井均有檢出重金屬鉻超過監測標準值以上之情況，仍顯示受到上游列管場址影響。 四、農地定期監測 完成2筆地號定期監測作業，均有檢測出重金屬超過食用作物農地監測標準值情況，建議明年度持續辦理監測作業外，協助彙整轄區內定期監測農地數量共102筆坵塊。 五、農地監督改善驗證 今年度持續針對南屯、大甲等2區，面積約2.77公頃農地污染改善作業辦理監督驗證工作，執行43天監督工作，今年度完成19筆坵塊土壤驗證作業，物理性及化學性地力回復作業結果良好，各筆坵塊已達整治目標，於109年6月5日解除列管，其中南屯區共4筆及大甲區共3筆坵塊，部分點位重金屬銅與鋅仍有超過土壤污染監測標準情況，建議持續辦理定期監測作業。 六、場址監督驗證 依契約針對列管場址至少每兩個月巡查1次，針對查核有缺失之場址於次月增加巡查頻率，今年度執行共395場次巡查作業、協助審查共82件報告、執行6處場址改善完成驗證作業，其中景順公司重金屬鉻及TPH超過土壤污染管制標準，驗證未通過，菱生二廠目前完成土壤驗證，其餘4處場址均完成驗證並解除列管。 七、宣導作業 協助環保局辦理1場次地下儲槽法令說明會、1場次環保法規講習會、16場次教育宣導(含1場次種子教師培訓及15場次校園宣導)，參與人數均符合契約規定，問卷調查滿意度高，宣導成效良好，亦協助辦理土基會20週年特展互動程式開發、年鑑編制及展場布置各1式，活動圓滿落幕。 八、緊急應變作業 今年度已執行案件數為6件，包括非法棄置場址周邊農地土壤應變調查作業、南屯區油品洩漏農地調查案件、清水區中油供油中心油品洩漏應變事件、大甲區閎邦化工實業(股)公司民眾陳情事件、神岡區農地受排放廢水污染調查應變事件及臺中市清水區中油供油中心土壤及地下水應變調查事件，總執行金額為656,311元。 九、其他工作成果 因應監察委員蒞臨考察土水業務事宜，協助彙整工業區預警監測管理與檢測資料備查作業、協助審查土壤評估調查與檢測資料、協助辦理績效考評作業、協助推動停滯場址執行進度、協助研修與調整「農地土壤污染防治計畫」、協助規劃與研擬「地下水污染防治計畫」、推動列管場址執行GSR與成果彙整、協助審查土測報告共71件及協辦土推會議共17場次。

土壤及地下水、緊急應變

109年度土壤及地下水污染調查及查證工作計畫-臺中市-期末報告.pdf

2MB

期末報告

2021/1/19 上午 12:00:00

Taichung Environmental Protection Bureau (TCEPB) has carried out the work to manage the current quality of soil and groundwater, including regular monitoring and investigation, verification for soil gas near underground storage tanks, management and maintenance of monitoring wells, inspect and testifying pollution sites, emergency treatment and investigation, and educational campaign. TCEPB commissioned “2020 Project of investigating and verifying pollution for Taichung soil and groundwater”, and the working period was from December 20th 2019 to December 20st 2020. The following abstract is the interpretation of the project. In 2020, we have successfully completed 1 high pollution potential plant pollution prevention counseling, and 3 public announcement business investigation operations, of which 2 respectively detected the soil heavy metal nickel and soil total petroleum hydrocarbons exceeded the law control standards, it is recommended to be listed in accordance with the relevant provisions of the soil pollution law. There are third quarter (January, May and September) underground storage tank industries have to complete online application, separately. Our team finish the verification in February, June and September. Both the percentage of application and verification are 100%. Besides, Our team has selected 11 highly potential polluted underground storage for verification and 3 drain tube soil gas monitoring operations .Among selected high pollution potential underground storage tanks, there are 2 stations which concentration of soil gas is still higher than regulatory warning standards and 2 of them are belong to level A, we execute land pollution inspection work. We have completed exterior and interior patrol and inspection for 205 monitoring wells and in the first and last half year respectively. Other results including condition evaluation for 35 wells, maintenance of 18 monitoring wells, repairing body facility for 9 wells, rebuilding 18 wells, eliminating unexpected substance and photography for 5 wells, setting 1 regional monitoring well. Moreover, we have successfully completed groundwater sampling for 2 wells in both drought and monsoon seasons, the result indicate the concetration of Cr has exceeded the law control standards. It shows that the current groundwater quality in the control area is still affected by the upstream soil groundwater contamination sites. This project to complete 2 regular monitoring operations of agricultural land, test results have detected some heavy metals projects exceeding the standards of agricultural land monitoring of edible crops, it is recommended that the monitoring operations continue to be handled next year. We also assists in the consolidation of the number of agricultural land to be continuously monitored by the end of this year, resulting in a total of 102 statistics. This year, the supervision and verification work for the improvement of agricultural land pollution in Nantun district and Dajia district of about 2.77 hectares has been carried out continuously, and more than 43 days of supervision work, and completed 19 soil quality verification operations. The results showed that the physical and chemical soil fertility response operation results were good, and each pieces had reached the rectification target, and the column was completely removed on 5th June 2020. Among them, some points of heavy metal copper and zinc still exceed the monitoring standards, i.e. Nantun District 4 and Dajia District 3 blocks, it is recommended that the future continue to handle regular monitoring operations to observe follow-up changes. At least one inspection is conducted every two months for the soil groundwater contamination site, and the frequency of inspections is increased in the following month for sites that are found to be missing. This year, more than 395 inspection operations were carried out, and more than 100 reports were reviewed, and 6 pollution site improvements were completed, of which heavy metal chromium and TPH were found to exceed soil pollution control standards during the verification process in Dajia district. Our team assisted TCEPB holding 1 groundwater storage tank laws explanation session , 1 environmental regulation workshop, 16 campus educational propagandas. The amount of all activities participants conform to contract and the results of questionnaire shows high satisfaction. We also assists in the development of interactive procedures for the 20th anniversary of "the Soil and Groundwater Rehabilitation Act", the preparation of Taichung City soil and groundwater business yearbook and the layout of the exhibition hall, and other activities are with the operation, and the activities have been successfully concluded. In this year, our team have completed 6 soil and groundwater emergencies treatment works. The total funds is 656,311 NTD. In addition to carrying out the monitoring and investigation of soil and groundwater quality in various maintenance areas, We also assists the visit business twice in response to the inspection of soil and groundwater business matters, in the preparation of early warning monitoring management and testing data in the industrial areas, the review of soil assessment survey and testing data, the conduct of performance appraisal operations of the EPA, assists in the progress of the implementation of stagnant site, the study and adjustment of the "Soil Pollution Prevention and Control Plan for Agricultural Land" and the planning and development of the Groundwater Pollution Prevention and Control Plan. To promote the implementation of GSR and related results consolidation of the contamination site, to assist in the review of the relevant types of reports more than 82, and to assist in the handling of regular review meetings more than 13 times.

soil and groundwater, monitoring wells, emergency treatment and investigation