For the environmental sustainability, the program of “The Survey of Soil and Groundwater Contamination in Changhua county in 2020” has been advanced, which involves groundwater monitoring wells maintenance and groundwater investigation, farmland monitoring, potential polluting factory investigation, to supervise and verify pollution remediation of contaminated sites, dealing with emergency cases, and administrative assistances. The plan had been executed from January 1st 2020 to November 30th 2020, 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 10 maintenance works finished. All slug tests of groundwater monitoring wells were completed, and seven purges and five foreign matter exclusion of monitoring well were implemented according to the slug test results. Besides, there were 3 monitoring wells surveys accomplished in dry or wet season, the results total organic carbon, ammonia nitrogen, iron and manganese concentrations over than Groundwater Pollution Monitor Standards and the others are less than Groundwater Pollution Control Standards. There were 441 farmlands finished sampling for regular monitoring, and the analysis results showed 29 farmlands exceeded Soil Pollution Control Standards. In addition, the work team explored 38 factories with pollution potential in Changhua County. According to the exploration, there were 27 plants chosen and sampled, and the results demonstrated 9 factories’ soil samples over the control standards. With respect to the mission of to supervise and verify pollution remediation of polluted sites, those sites had been examined at least bimonthly, and there were 28 listed sites completed verification and 3 sites sampled for regular monitoring. There were entirely 9 emergency cases implemented during plan period.

Potential polluting factory investigation, Maintenance of monitoring well, Farmland sites sampled for regular monitoring