This project is based on the provisions of Article 6 of the "Soil and Groundwater Pollution Remediation Law" conducted by the Environmental Protection Agency of Pingtung County Government (hereinafter referred to as EPB) for regular inspection of the soil and groundwater quality in the area. If the test results are contaminated Concentrations of soil or groundwater pollution monitoring standards or standards of control, should take appropriate measures. Work items include underground well water quality sampling and analysis, simple tap water sampling and analysis, monitoring and maintenance outside the well repair and washing operations, and farmland soil sampling and analysis operations. The effectiveness of the project implementation is to grasp the current status of the soil and groundwater in Pingtung County so as to ensure the quality of local soil and water and people's health.
Groundwater Testing In the forest edge of the township of Linbian and other places near the election 5 underground water wells, Wan Dan Rural Social Securityrespectively. The analysis project includes eight heavy metals (copper, mercury, zinc, lead, chromium, cadmium, arsenic and nickel) and the general measurements of nitrate nitrogen, Nitrite nitrogen, fluoride salt, total hardness, total dissolved solids, chloride, ammonia nitrogen, sulfate, total organic carbon, total phenols and other items of content. The team has performed the sampling analysis according to the scheduled progress. The test results in the first half of the second half of the year show that the general measurement items of 9 underground water wells except for ammonia nitrogen, the heavy metal detection items are in line with the second category of groundwater laws and regulations
In the simple tap water testing, water samples were taken from the villages of Longai Village, Zhenxing Village and Gaolang Village of Yanpu Township to test volatile organic compounds (VOCs) in water and general items. The testing items of volatile organic compounds were benzene, toluene, naphthalene, ethylbenzene, Xylene, carbon tetrachloride, chloroform, methylene chloride, 1,1-dichloroethane, 1,2-dichloroethane, vinylidene chloride, trichlorethylene, tetrachlorethylene, vinyl chloride Etc .; general project testing: water temperature, hydrogen ion concentration index, conductivity, chloride, total hardness, total dissolved solids, ammonia nitrogen, nitrate nitrogen, nitrite nitrogen. Detection frequency is dry, wet period of 1, a total of 6 times. The team has carried out sampling analysis of simple tap water in high and low water phases according to the scheduled progress. The analysis shows that in terms of general measurements, only the total hardness and total dissolved solids in Jiu'aiai Village and Zhenxing Village exceed drinking water, The remaining items are in compliance with the drinking water regulations. For volatile organic compounds, the concentrations of all the tested items are ND (not detected) or less than the minimum calibration curve, which is in compliance with the regulatory standards for drinking water affecting healthy substances.
In the monitoring and maintenance of 75 monitoring wells in Pingtung County, the monitoring results of the external monitoring wells in the first half of the year were recorded. Only the lack of statistical equipment was damaged in the small guard lock of the riverside country, and all the missing parts have been completely repaired. The second half of the year has been scheduled to be completed, no missing equipment.
The monitoring records of monitoring wells in the first half of this year show that the average value of 74 monitoring wells and the second half of 105 wells decreased by 2.88 meters, which is estimated to be the impact of the dry season. The monitoring well depth measurement and the second half of 105 wells after washing well difference between the average depth of decline of 0.001 meters, the standard deviation of 0.078 meters, the change is not obvious, indicating that the monitoring well is still a stable state.
After the well washing in the first half of the well water turbidity measurement data show that each monitoring well turbidity is less than 30 NTU, with a high monitoring Lang Lang small turbidity measured 28.7NTU highest, all monitoring wells turbidity measurement average 8.79 NTU. Well water after washing well pH value measurement data show that after washing well pH value of well water (PH value) within the small monitoring wells measured Pu 6.37 as a minimum, Bandung small monitoring wells were measured 8.51 for the highest, The total average of all monitoring wells was 7.53. The well water conductivity measurement data show that the highest value for the new Dragon Community Park monitoring well conductivity 45,900 μmho / cm, followed by the seagull Park monitoring well 29400μmho / cm, Li Guo small monitoring well conductivity 5900μmho / cm And the forest border small monitoring well conductivity 4920 μmho / cm, the remaining monitoring well conductivity are less than 4000μmho / cm. In the second half of the year, no well washing operations were carried out. Only the color, odor, turbidity, pH, conductivity and water retention characteristics of the water retained in the well were measured. The water color of the 75 wells was normal, and none Smell. The turbidity of stagnant water is generally less than 30 NTU for all monitoring wells and 10 for silt greater than 20 NTU. Compared with the first half of the year, the turbidity of Qiangyuan Elementary School and Wanlun Elementary School has dropped, The total mean turbidity measurement of all monitoring wells was 9.31 NTU, higher than the first half of the year. The pH value of the retention water was between 6.45 and 8.15 with the minimum of 6.45 measured by the small monitoring well in Karuoguo, the highest was measured at the small monitoring well of Gaoshu country with 8.15 being the highest. The total average pH value of all monitoring wells was measured The value is 7.42. The highest conductivity of retention water was 28,700 μmho / cm for Seagull Park monitoring wells, followed by 9,090 μmho / cm for monitoring wells in Xinlong Community Park and 4,820 μmho / cm for Linbianguo Small Monitoring wells. The conductivity of the remaining wells was low At 3000 μmho / cm. In comparison with the first half of the year, the electrical conductivity of Li Guoshiao monitoring well decreased. The electrical conductivity of Xinlong Community Park monitoring well, Seagull Park monitoring well and Linbianguo small monitoring well increased.
The project will carry out sample analysis and analysis of 60 areas of Changzhi Township agricultural land, and the analysis project is 8 heavy metals in soil. It has been planned to complete the sampling and analysis operation of Block 60, and the analysis results show that the concentrations of heavy metals in the soil of each block are lower than the monitoring standards of agricultural soil.
The project held a QA / QC audit meeting on June 2, 2006. In response to members' checking opinions, all opinions and feedbacks have been made and the related measures have been improved.
The expected effect of the project is to ensure the reliability of groundwater sampling analysis by implementing the external facilities and internal function maintenance of the regional groundwater monitoring wells in Pingtung County. Aiming at the detection of groundwater in areas with potential pollution and the maintenance of water safety for people in the area as well as the investigation of soil quality in agricultural land so as to ensure the safety of the crops.
