Nutrients and Major-Ions Measured in Water-Quality Samples Collected from Four North Texas Reservoirs (ver. 3.0, September 2021)

In cooperation with Dallas Water Utilities (DWU), the U.S. Geological Survey (USGS) measures nutrient and major-ion concentrations in selected reservoirs in north...本数据集的测定工作由美国地质调查局（U.S. Geological Survey, USGS）与达拉斯水务公用事业公司（Dallas Water Utilities, DWU）合作开展，测定对象为北部地区选定水库中的营养盐与主要离子浓度……