Data for trends in water quality of selected reservoirs used for water supply in the Triangle area of North Carolina, 1989-2013

This U.S. Geological Survey Data Release contains the associated data described in the Scientific Investigations Report, "Trends in water quality of selected streams...本美国地质调查局（U.S. Geological Survey）发布的数据集中，包含了《科学调查报告（Scientific Investigations Report）》“选定河流水质变化趋势……”一文中所描述的关联数据。