112

19,807 千元

補助地方政府執行土壤、地下水污染整治相關工作

2023/01/01

2023/11/30

李啟睿

彰化縣環境保護局

林俊丞

上準環境科技股份有限公司

土壤及地下水

工廠調查、監測井維護、農地定期監測

Factory investigation, Maintenance of monitoring well, farmland sites sampled for regular monitoring

何佩紋；陳曉潔

蘇于婷

04-23582525#

Yuting.Su@tw.eurofinsasia.com

工作事項內容為地下水監測井巡查及維護、貯存系統管理及公告事業用地調查與查證工作、監測式自然衰減與評估作業、污染場址監督查核管理、污染場址驗證、農地監測場址重金屬監測作業、配合農作物及土壤同步採樣工作、農地場址改善監督與驗證作業、農地污染預防工作、事業土地污染預防工作及民眾陳情及緊急應變等項目。計畫履約期限為自112年01月01日至112年11月30日完成，工作成果摘要如下： 1.地下水監測井巡查及維護 計畫完成124口次區域性及場置性監測井巡查及維護，8口次井體外觀維護、4口次井體設施修復、14口次井況評估、9口次再次完井與5口次的異物排除。 2.貯存系統管理及公告事業用地調查與查證工作 (1)貯存系統管理 共計完成縣內23處地下儲槽系統土壤氣體監測與查核作業與44站地上儲槽系統改善追蹤及複查作業。 (2)公告事業用地調查與查證工作 中央主管機關公告事業共執行6家工廠之現勘與訪談，進場調查2家業者，調查結果皆低於土壤污染監測標準。 3.監測式自然衰減與評估作業 完成場址內既設之1口標準井與3口簡易井枯豐水期的採樣及分析，其利用檢測結果進行可行性評估，評估結果權重僅得4分屬等級1(無證據顯示含氯有機物能於厭氧環境下生物降解)，表示本場址利用監測式自然衰減法進行場址污染整治之可能性較低。 4.污染場址監督查核、驗證工作 共計完成縣內57處污染場址之定期巡查作業、18處列管場址改善完成驗證作業。 5.農地監測場址重金屬監測作業與配合農作物及土壤同步採樣工作 農地調查完成110筆農地坵塊監測，結果5筆農地坵塊超過食用作物農地之管制標準值，並已完成公告列管作業；另完成110筆農作物及土壤同步採樣。 6.農地場址改善監督與驗證作業 污染改善完成面積共計約0.81公頃，再次改善面積為0.61公頃；通過自行驗證面積為1.84公頃；通過監督驗證面積為6.58公頃，通過地力驗證面積為12.08公頃。 7.農地污染預防工作 完成196場次現勘作業，並已執行415筆監測作業，其中37筆農地介於食用作物監測標準及管制標準間，378筆農地未超過食用作物監測標準之情形。 8.事業土地污染預防工作 完成A群(加強管理群)事業27場次現勘及預防管理，並從中挑選6場次調查採樣作業，其中5處已達土壤污染管制標準，1處未達土壤污染監測標準；B群(自主管理群)已完成90家主污染預防管理計畫資料檢核，已執行15家次現場檢核作業，並請業者依建議修正自主污染管理計畫；C群(檢視管理群)已完成31家次事業現場稽查作業，其中3家次建議調整至B群(自主管裡群)，1家次建議解除納管 9.民眾陳情及緊急應變作業 民眾陳情及緊急應變共完成6件土壤與地下水相關調查作業。

工廠調查、監測井維護、農地定期監測

期末報告本文.pdf

35MB

2024/1/26 上午 12:00:00

For environmental sustainability, the "Survey of Soil and Groundwater Contamination in Changhua County in 2023" program has been initiated. This comprehensive project encompasses nine major tasks: (a) Investigation and maintenance of groundwater monitoring wells; (b) Management of storage systems; (c) Enterprise investigation and verification for assessment; (d) Operations related to monitored natural attenuation and assessment; (e) Supervision, inspection, management, and verification of contaminated sites; (f) Monitoring of heavy metals at farmland sites and synchronous sampling of crops and soil; (g) Supervision and verification of farmland contamination removal; (h) Operations for the prevention of contamination in farmland and facilities; (i) Management of public complaints and emergency response. The plan had been executed from January 1st 2023 to November 30th 2023, and the results of implementation were summarized as follows: The groundwater monitoring wells investigation for 124 regional and located monitoring wells was completed. Also finished 8 exterior appearance maintenance, 4 facilities repairment, 14 conditional assessments, 6 purges and 5 foreign matter exclusion. For the task of storage system management, there were 23 underground storage tank systems and 44 aboveground tank systems improvement tracking and re-evaluation completed. The assessed enterprise had conducted on-site inspections and interviews for 6 factories, then investigated 2 operators and all results were below the soil pollution monitoring standards. The monitoring of natural attenuation and completion of assessment operations involved the sampling and analysis of one standard well and three simple wells throughout both wet and dry seasons at the site. The feasibility assessment, based on the test results, yielded only 4 points, indicating a low potential for utilizing monitored natural attenuation in the site's remediation process. The operation involving supervision, inspection, management, and verification of contaminated sites successfully conducted regular inspections at a total of 57 contaminated sites, with verification for improvement carried out at 18 listed sites. In the heavy metal monitoring task for farmland, we completed 110 sites monitoring and soil sampling. Among them, we found that the soil heavy metal concentration of 5 of farmlands exceeded the standard value for edible crop farmland. Additionally, also completed synchronous sampling of 100 crops and soil. Supervision and verification of farmland improvement operation total completed improvement area was approximately 0.81 hectares, with re-improvement area of 0.61 hectares, self-verified area of 1.84 hectares, supervised verified area of 6.58 hectares, and fertility verified area of 12.08 hectares. In farmland contaminated prevention operations, 196 on-site inspections were conducted, along with 415 monitoring operation. Among these, 37 sites fell between edible crop monitoring standards and control standards, while 378 sites did not exceed edible crop monitoring standards. Facilities contaminated prevention completed 27 on-site inspections and prevention management for Group A (Enhanced Management Group) businesses. In the investigation and sampling operation, 6 cases were selected, with 5 exceeding soil pollution control standards and 1 not exceeding soil pollution monitoring standards. For Group B (Self-Management Group), data checks for 90 main contaminated prevention management plans were completed, along with on-site checks for 15 companies. Businesses were requested to revise their self-pollution management plans based on suggestions. Group C (Inspection Management Group) completed 31 on-site inspections, recommending 3 companies to adjust to Group B (Self-Management Group) and 1 company to be removed from supervision. In public complaints and emergency response operations, 6 sites underwent soil and groundwater investigation operations.

Factory investigation, Maintenance of monitoring well, farmland sites sampled for regular monitoring