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Descriptions of the mineral occurrences shown on the accompanying figure follow [155 total mineral occurances]. See U.S. Geological Survey (1996) [?!] for a description of the information content of each field in the records. The data presented here are maintained as part of a statewide database on mines, prospects and mineral occurrences throughout Alaska.
Categories: Publication; Types: Citation; Tags: GEOLOGY
This study evaluated the relations between algal, invertebrate, and fish assemblages and physical environmental characteristics of streams at the reach, segment, and watershed scale in agricultural settings in the Midwest. The 86 stream sites selected for study were in predominantly agricultural watersheds sampled as part of the U.S. Geological Survey's National Water-Quality Assessment Program. Species abundance and over 130 biological metrics were used to determine which aspects of the assemblages were most sensitive to change at the three spatial scales. Digital orthophotograph-based riparian land use/land cover was used for analyses of riparian conditions at the reach and segment scales. The percentage area...
The Illinois Water-Quality Information Mapping Tool provides access to water-quality information collected and distributed by the Illinois EPA. This information fulfills requirements identified in the Federal Clean Water Act. Users of the Mapping Tool can locate, create, and print maps of any area within Illinois providing lake and stream information as well as geographic reference information (streets, towns, highways, etc). This site was developed through a cooperative effort between Illinois EPA and the United States Geological Survey (USGS).
NEED FOR STUDY: Water-resource planning and water-quality assessment require a nationwide data base with standardized information. Sediment concentrations and discharges in rivers and streams need to be monitored and defined to achieve this goal. OBJECTIVES: To provide a national sediment data base for use in Federal programs and Federal management of interstate waters. The State also needs spatial and temporal averages and trends of sediment concentration, sediment discharge, and particle-size distribution of sediment being transported in the rivers and streams for planning and action programs.
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The U.S. Geological Survey (USGS) is providing an online map of water-table altitude contours in the upper glacial and Magothy aquifers on Long Island, New York, April-May 2013. USGS serves this map and geospatial data as a REST Open Map Service (as well as HTTP, JSON, KML, and shapefile), so end-users can use the map and data on mobile and web clients. A companion report, U.S. Geological Survey Scientific Investigations Map 3326 (Como and others, 2015; http://dx.doi.org/10.3133/sim3326) further describes data collection and map preparation and presents 68x22 in. PDF versions, 4 sheets, scale 1:125,000. This polyline shapefile consists of digital contours that represent the water table altitude in the upper...
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The U.S. Geological Survey (USGS) is providing an online map of stream and lake gage water level measurements on Long Island, New York, April-May 2013. USGS serves this map and geospatial data as a REST Open Map Service (as well as HTTP, JSON, KML, and shapefile), so end-users can use the map and data on mobile and web clients. A companion report, U.S. Geological Survey Scientific Investigations Map 3326 (Como and others, 2015; http://dx.doi.org/10.3133/sim3326) further describes data collection and map preparation and presents 68x22 in. PDF versions, 4 sheets, scale 1:125,000. Continuous records of water level altitude at 16 U.S. Geological Survey (USGS) streamgaging stations (15 streams and...
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​ The U.S. Geological Survey (USGS) is providing an online map of depth to water measurements in the upper glacial and Magothy aquifers on Long Island, New York, April-May 2013. USGS serves this map and geospatial data as a REST Open Map Service (as well as HTTP, JSON, KML, and shapefile), so end-users can use the map and data on mobile and web clients. A companion report, U.S. Geological Survey Scientific Investigations Map 3326 (Como and others, 2015; http://dx.doi.org/10.3133/sim3326) further describes data collection and map preparation and presents 68x22 in. PDF versions, 4 sheets, scale 1:125,000. The depth to water table was measured at 335 groundwater monitoring wells (observation and...
Descriptions of the mineral occurrences shown on the accompanying figure follow [155 total mineral occurances]. See U.S. Geological Survey (1996) [?!] for a description of the information content of each field in the records. The data presented here are maintained as part of a statewide database on mines, prospects and mineral occurrences throughout Alaska.
Categories: Publication; Types: Citation; Tags: GEOLOGY
Concentrations, spatial and temporal variations, and fluxes of nitrogen, phosphorus, and suspended sediment were determined for 16 streams in the Illinois River basin, Illinois from October 1996 through September 2000. Water samples were collected through the National Water-Quality Assessment's Lower Illinois River Basin (LIRB) and Upper Illinois River Basin (UIRB) Study Units on a monthly to weekly frequency from watersheds representing predominantly agricultural and urban land, as well as areas of mixed land-use. Streams in agricultural watersheds had high concentrations and fluxes of nitrate nitrogen, whereas streams in predominantly urban watersheds had high concentrations (above background levels) of ammonia...
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The U.S. Geological Survey (USGS) is providing an online map of water level measurements in the Magothy and Jameco aquifers on Long Island, New York, April-May 2013. USGS serves this map and geospatial data as a REST Open Map Service (as well as HTTP, JSON, KML, and shapefile), so end-users can use the map and data on mobile and web clients. A companion report, U.S. Geological Survey Scientific Investigations Map 3326 (Como and others, 2015; http://dx.doi.org/10.3133/sim3326) further describes data collection and map preparation and presents 68x22 in. PDF versions, 4 sheets, scale 1:125,000. The potentiometric surface altitude was measured at 70 observation wells and 31 supply wells screened...
The composition, distribution and abundance of 74 taxa of benthic invertebrates collected from snags and woody debris at sites in the Wapsipinicon, Cedar, Iowa and Skunk River basins were used to assess the effects of intensive agriculture in the Eastern Iowa Basins study unit of the NAWQA Program. Two-way indicator species analysis was used to define four groups of sites based upon the distribution and abundance of taxa; detrended correspondence analysis was used to identify relations in the structure of the invertebrate assemblages and the correspondence of taxa and sites in the groups to physical and chemical gradients using habitat, hydrologic and water-quality data. Responses of these assemblages were evaluated...
NEED FOR STUDY: Streamflow supplies water for many uses, including domestic, commercial, and industrial uses; irrigation of crops; dilution and transport for removal of wastes; hydroelectric power generation; commercial transport; and recreation. Streamflow records are used to develop reliable surface-water supplies because they provide information on the availability and variability of streamflow. Excessive streamflow, or flooding can cause extensive damage and hardship. Records of floods obtained at streamflow-gaging stations serve as the basis for the design of bridges, culverts, dams, and flood-warning systems. Streamflow records are used in the planning and design of surface-water related projects and in the...
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The U.S. Geological Survey (USGS) is providing an online map of potentiometric-surface altitude contours in the Magothy and Jameco aquifers on Long Island, New York, April-May 2013. USGS serves this map and geospatial data as a REST Open Map Service (as well as HTTP, JSON, KML, and shapefile), so end-users can use the map and data on mobile and web clients. A companion report, U.S. Geological Survey Scientific Investigations Map 3326 (Como and others, 2015; http://dx.doi.org/10.3133/sim3326) further describes data collection and map preparation and presents 68x22 in. PDF versions, 4 sheets, scale 1:125,000. This polyline shapefile consists of digital contours that represent the potentiometric-surface...
Descriptions of the mineral occurrences shown on the accompanying figure follow [155 total mineral occurances]. See U.S. Geological Survey (1996) [?!] for a description of the information content of each field in the records. The data presented here are maintained as part of a statewide database on mines, prospects and mineral occurrences throughout Alaska.
This report presents the results of a study by the U.S. Geological Survey, in cooperation with the Missouri Department of Natural Resources, to analyze and compare hydrologic and water-quality characteristics of tallgrass prairie and agricultural basins located within the historical distribution of tallgrass prairie in Missouri and Kansas. Streamflow and water-quality data from two remnant, tallgrass prairie basins (East Drywood Creek at Prairie State Park, Missouri, and Kings Creek near Manhattan, Kansas) were compared to similar data from agricultural basins in Missouri and Kansas. Prairie streams, especially Kings Creek in eastern Kansas, received a higher percentage of base flow and a lower percentage of direct...
map background search result map search result map Depth to Water Data in the Upper Glacial and Magothy Aquifers, April-May 2013 Potentiometric Surface Contours of the Magothy and Jameco Aquifers, April-May 2013 Water Level Data in the Magothy and Jameco Aquifers, April-May 2013 Stream and Lake Average Water-Level Altitudes, April-May 2013 Contours of Water Table Altitudes in the Upper Glacial and Magothy Aquifers, April-May 2013 Stream and Lake Average Water-Level Altitudes, April-May 2013 Water Level Data in the Magothy and Jameco Aquifers, April-May 2013 Potentiometric Surface Contours of the Magothy and Jameco Aquifers, April-May 2013 Contours of Water Table Altitudes in the Upper Glacial and Magothy Aquifers, April-May 2013 Depth to Water Data in the Upper Glacial and Magothy Aquifers, April-May 2013