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The Survey of the Soil and Groundwater Contamination in Taipei City in 2021

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For the environmental sustainability, the program of “The Survey of the Soil and Groundwater Contamination in Taipei City in 2021” has been advanced, which involves groundwater monitoring wells maintenance and groundwater investigation, Farmcity soil monitoring, potential polluting site and auto repair plant investigation, to supervise and verify pollution remediation of contaminated sites, Tam-sui river sediment investigation, enactment explanation session, dealing with emergency cases, and administrative assistances. The plan had been executed from January 1st 2021 to December 20th 2021, and the results of implementation are summarized as follows: At first, the task of groundwater monitoring wells inspection has been implemented twice this year and there were totally 6 maintenance works finished. All slug tests of groundwater monitoring wells were completed, and 5 purges and 5 foreign matter exclusion of monitoring well were implemented according to the slug test results. Besides, there were 6 monitoring wells surveys accomplished in dry season, the results total dissolved solids, ammonia nitrogen, chloride over than Groundwater Pollution Monitor Standards, and arsenic over than Groundwater Pollution Control Standards. There were 78 gas stations to verify, and 7 gas stations had pollution potential. In addition, 470 oil storage place had been checked. There were 5 oil storage tanks finished sampling for monitoring, and the analysis results showed all complying with Soil Control Standards. There were 40 sites of Farmcity soil finished sampling for monitoring, and the results showed 6 sited of Farmcity soil exceeded Soil Pollution Monitor Standards, and 2 sited of Farmcity soil exceeded Soil Control Standards. According to the exploration, there were 4 auto repair plants chosen and sampled, and the results demonstrated soil samples of all auto repair plants complying with Soil Control Standards. With respect to the mission of to supervise and verify pollution remediation of polluted sites, those sites had been examined each mouth, and 1 sites sampled for regular monitoring. There were entirely 4 emergency cases implemented during plan period. 4 enactment explanation session and 10 advocacy activities in elementary school had been completed.
Keyword
Soil and Groundwater survey, Maintenance of monitoring well, Groundwater for regular monitoring
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