Limnology data from Lake Powell, desert southwest USA (ver. 2.1, September 2024)

These data were compiled as part of a long-term (1964 - 2022) water quality monitoring program at Lake Powell. Objectives of our study were to release a consistent record of long-term water quality data. The 58-year limnology dataset captures some water quality parameters (temperature, salinity, major ions, total suspended solids) from reservoir filling to present day. It also contains a 38-year record of secchi depth, and a ~30-year record of nutrients, phytoplankton, and zooplankton assemblages. The data were collected from various sites within the Lake Powell reservoir and the Glen Canyon dam. Regular monthly sampling occurred at three sites near the dam and reservoir-wide sampling was generally conducted quarterly,...

Categories: Data; Tags: Arizona, Aztec Creek, Bridge Creek, Cathedral Canyon, Clear Creek, All tags... Colorado River, Dark Canyon, Davis Gulch, Dreissena bugensis, Escalante River, Face Canyon, Glen Canyon, Glen Canyon Dam, Glen Canyon National Recreation Area, Gunsight Canyon, Labyrinth Canyon, Lake Powell, Last Chance Canyon, Lees Ferry, Navajo Canyon, Rainbow Bridge, Red Canyon, Rock Creek Canyon, San Juan River, Sheep Canyon, USGS Science Data Catalog (SDC), Upper Colorado River Basin, Utah, Wahweap Bay, Warm Creek Bay, Warm Creek Bay Alternate, West Canyon, arid reservoir, chlorophyll a, data release, discrete sample, dissolved oxygen, field inventory and monitoring, field monitoring stations, inlandWaters, invasive bivalve, invasive species, laboratory methods, limnology, long-term ecological monitoring, long-term trends, major ions, nutrients, oxygen content (water), phytoplankton, plankton, profiles, reservoir, salinity, secchi depth, site visit, station location, total suspended solids, turbidity, water chemistry, water quality, water sampling, water temperature, zooplankton, Fewer tags

Occurrence and Concentrations of Trace Elements in Discrete Tapwater Samples Collected in Chicago, Illinois and East Chicago, Indiana, 2017

This dataset contains the trace element concentration results for samples collected from tapwater sites in East Chicago, Indiana, August-September, 2017, and Chicago, Illinois, July-December, 2017. Samples were collected one time, from 45 private residences and associated drinking water plants and source water locations. Water-quality samples were analyzed at two U.S. Geological Survey laboratories: National Water Quality Laboratory, Denver, Colorado and at the Redox Chemistry Laboratory, Boulder, Colorado.

Categories: Data; Tags: Chicago, East Chicago, Environmental Health, Illinois, Indiana, All tags... USGS Science Data Catalog (SDC), United States, Water Quality, discrete sample, domestic tap, drinking water, human exposure, lead, trace elements, Fewer tags