The Environmental Protection Department of New Taipei City government has implemented the ’Soil and Groundwater Investigation and Verification Project’ since 2004. It has been continuously monitoring the quality of soil and groundwater to prevent pollution from source to the end-of-pipe. This year, the groundwater monitoring and monitoring well function maintenance work has been completed. Regarding groundwater pollution, Shulin Industrial Park was measured with cis-1,2-DCE and VC. There is nothing special about groundwater in other sites. Regarding the storage tank system, not only the paperwork was completed, but 34 sites were also investigated. Four of them were selected for soil or groundwater pollution verification, and no illegal activities were found. A total of 4 publicity activities were handled in this year: In the first half of the year, an on-site briefing was handled. Affected by the covid-19 epidemic in the second half of the year, 3 online briefings were handled. The survey results of the Cheng Tai chemical co., ltd site showed that the mercury concentration was the highest at the corner of L Lane. The depth of influence ranges from 0 to -9 m. It has polluted soil and groundwater for several years. Monitoring wells F00060 and F00370, also located at the corners of the L Lane, also detected high concentrations of mercury. We still recommend continuing to implement the health risk management strategy. A total of 53 companies, listed under §8 or 9 of the Law of ‘Soil and Groundwater Pollution Remediation Act’, have submitted soil pollution assessment survey data to The Environmental Protection Department of New Taipei City government for review. We are continuously reviewing and selecting 31 sites to confirm the sampling operations. Regarding contaminated sites, there are 45 contaminated sites in New Taipei City currently. We conduct site inspections 1~2 times every month after we classify those sites. And we have done 6 pollution certifications in this plan. In addition, we executed phase I and found out 8 factories with high pollution potential. Then we carried out phase II and confirmed that the soil or ground water pollution concentrations in 6 of them exceeded the control standards. In the emergency response works, the TCE source of RF08 in Reifang Industrial Park was traced through the cooperation of geophysical prospecting, groundwater monitoring wells setting and 3 difference depths of groundwater sampling. It is recommended to execute phase l on the west side of RF08 next year. In addition, we have tried to remove foreign materials from groundwater monitoring wells F00035 in accordance with the order of the Environmental Protection Agency. But the plant roots are entangled in the pipe and never be removed. We suggest re-establishing monitoring wells in adjacent areas.

Soil and groundwater, pollution investigation, verification