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Filters Date Range Past year (0) Past month (0) Past week (0) Past day (0) Custom range... To   Search Types Map Service (2) OGC WFS Layer (2) OGC WMS Layer (2) OGC WMS Service (2) Contacts Terri L Arnold U.S. Geological Survey - ScienceBase Karen R Ryberg Geologic Hazards Science Center (GHSC) Data Steward U.S. Geological Survey More... Categories Data (1) Tags (with Type=Subject ) nawqa (2) debris flows (1) geology (1) hurricane maria (1) landslide density (1) landslide distribution (1) landslides (1) More... View Results as: JSON ATOM CSV

Groundwater Quality Data from the National Water Quality Assessment Project, May 2012 through December 2013 Groundwater-quality data were collected from 748 wells as part of the National Water-Quality Assessment Project of the U.S. Geological Survey National Water-Quality Program from May 2012 through December 2013. The data were collected from four types of well networks: principal aquifer study networks, which assess the quality of groundwater used for public water supply; land-use study networks, which assess land-use effects on shallow groundwater quality; major aquifer study networks, which assess the quality of groundwater used for domestic supply; and enhanced trends networks, which evaluate the time scales during which groundwater quality changes. Groundwater samples were analyzed for a large number of water-quality... Types: Citation; Tags: Hydrogeology, NAWQA, National Water Quality Program, USGS Science Data Catalog (SDC), United States, All tags... Water Quality, cycle 3, groundwater, groundwater, nawqa, water quality, Fewer tags Map data showing concentration of landslides caused by Hurricane Maria in Puerto Rico On September 20, 2017, Hurricane Maria hit the U.S. territory of Puerto Rico as a category 4 storm. Heavy rainfall caused landslides in mountainous regions throughout the territory. This data release presents geospatial data describing the concentration of landslides generated by Hurricane Maria in Puerto Rico. We used post-hurricane satellite and aerial imagery collected between September 26, 2017 and October 8, 2017 to visually estimate the concentration of landslides over nearly the whole territory. This was done by dividing the territory into a grid with 4 square km cells (2 km x 2 km). Each 4 square km grid cell was classified as either containing no landslides, fewer than 25 landslides/ square km or more than... Categories: Data; Types: Citation, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Hurricane Maria, Puerto Rico, Remote Sensing, USGS Science Data Catalog (SDC), data release, All tags... debris flows, geology, landslide density, landslide distribution, landslides, landslides, maps and atlases, rainfall, Fewer tags Total Phosphorus Load and Ancillary Data Related to Sources of Total Phosphorus in the Red River of the North Basin The Red River of the North (Red River) transports phosphorus from North Dakota, Minnesota, and South Dakota, to Manitoba, Canada, and eventually into Lake Winnipeg. Phosphorus load (or flux) is the amount of total phosphorus (TP) transported by the Red River. The effect of TP load on water quality is a concern, especially with respect to downstream eutrophication issues in Lake Winnipeg, Manitoba, Canada. There is interest at the State and International level to reduce TP flux – an expensive proposition, depending on the method (controlling sources, settling ponds, buffer strips, changes in land use) that is not always effective during spring runoff. The purpose of the study for which these data were developed... Types: Citation, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Crookston, Crookston, Crookston, Emerson, Emerson, All tags... Emerson, Fargo, Fargo, Fargo, Halstad, Halstad, Halstad, Kindred, Kindred, Kindred, Manitoba, Manitoba, Minnesota, Minnesota, Moorhead, Moorhead, Moorhead, Neche, Neche, Neche, North Dakota, North Dakota, Pembina River, Pembina River, Pembina River, Red Lake River, Red Lake River, Red Lake River, Red River of the North, Red River of the North, Red River of the North, Sheyenne River, Sheyenne River, Sheyenne River, South Dakota, South Dakota, USGS Science Data Catalog (SDC), Water Quality, agriculture, loads, phosphorus, surface water quality, total phosphorus, water quality, Fewer tags