Beaufort (Tb) Aquifer Chloride

This layer contains information on groundwater chloride levels in the Beaufort aquifer. Groundwater samples from the NC Division of Water Resources (DWR) Monitoring Well Network wells were collected in 2023 and analyzed for chloride by the DWR Groundwater Resources Branch staff. Chloride values were classified into three categories or zones: “freshwater”, “saltwater”, and “transitional”. The freshwater zone represents areas with chloride concentrations <100 parts per million (ppm). The saltwater zone represents areas with chloride concentrations >250 ppm, which is the North Carolina Groundwater Standard (“NC 02L Standard”) for chloride. The transitional zone represents areas where chloride concentrations are generally between 100-250 ppm. For questions, please visit the Groundwater Branch Contacts page.本图层包含博福特含水层（Beaufort aquifer）地下水中氯化物含量的相关信息。2023年，研究人员采集了北卡罗来纳州水资源部（NC Division of Water Resources, DWR）监测井网的地下水样本，并由该部地下水资源分部的工作人员对样本中的氯化物开展了检测分析。检测得到的氯化物数值被划分为三类区域：“淡水”、“咸水”与“过渡带”。其中淡水区域指氯化物浓度低于100百万分比浓度（parts per million, ppm）的区域；咸水区域指氯化物浓度高于250ppm的区域，该阈值为北卡罗来纳州地下水氯化物标准（NC 02L Standard）；过渡带则指氯化物浓度大致处于100-250ppm之间的区域。如有疑问，请访问地下水分部联系方式页面。