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Field spikes were prepared at 207 stream and river sites as part of the U.S. Geological Survey (USGS) National Water Quality Assessment (NAWQA) project between December, 2012, and September, 2015. At the field site, a depth-and width-integrated environmental sample was collected, and one subsample of the environmental sample was spiked with a known amount of a spike mixture. Both the spiked subsample ("spike sample") and another subsample ("environmental sample") of the original water sample were analyzed for pesticides at the USGS National Water Quality Laboratory (NWQL) by direct injection liquid chromatography with tandem mass spectrometry (LC-MS/MS), and were used to calculate the spike recovery of each analyte....
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The glacial aquifer system of the United States encompasses all or parts of 25 states and is the most widely used supply of drinking water in the Nation (Maupin and Barber, 2005; Maupin and Arnold, 2010). A series of seven raster data sets were derived from a database of water-well drillers' records that was compiled in partial fulfillment of the goals of the U.S. Geological Survey’s Groundwater Availability and Use assessment program (U.S. Geological Survey, 2002). They contain hydrogeologic information for areas of the U.S. that are north of the southern limit of Pleistocene glaciation, including the total thickness of glacial deposits, thickness of coarse-grained sediment within the glacial deposits, specific-capacity...
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This map layer consists of federally owned or administered lands of the United States, Puerto Rico, and the U.S. Virgin Islands. For the most part, only areas of 320 acres or more are included; some smaller areas deemed to be important or significant are also included. There may be private inholdings within the boundaries of Federal lands in this map layer. Some established Federal lands which are larger than 320 acres are not included in this map layer, because their boundaries were not available from the owning or administering agency.
Tags: Air Force, Alabama, Alaska, Arizona, Arkansas, All tags...
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Water quality and optical absorbance data for journal article entitled, "The removal kinetics of dissolved organic matter and the optical clarity of groundwater" by Francis H. Chapelle, Yuan Shen, Eric W. Strom, and Ronald Benner. Hydrogeology Journal. In Press.
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This dataset, termed "GAGES II", an acronym for Geospatial Attributes of Gages for Evaluating Streamflow, version II, provides geospatial data and classifications for 9,322 stream gages maintained by the U.S. Geological Survey (USGS). It is an update to the original GAGES, which was published as a Data Paper on the journal Ecology's website (Falcone and others, 2010b) in 2010. The GAGES II dataset consists of gages which have had either 20+ complete years (not necessarily continuous) of discharge record since 1950, or are currently active, as of water year 2009, and whose watersheds lie within the United States, including Alaska, Hawaii, and Puerto Rico. Reference gages were identified based on indicators that they...
Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service; Tags: Alabama, Alaska, All 50 states, Arizona, Arkansas, All tags...
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High-water marks were collected following Hurricane Sandy, October 29-30, 2012, along the coastal areas of Connecticut, Rhode Island, and Massachusetts. Information on 371 high-water marks that were flagged following Hurricane Sandy is presented in this data release. The general information on the high-water marks presented includes site identification number, location, elevation, quality, type, and website links to the data. Of the 371 high-water marks flagged, 364 high-water marks were surveyed and 7 high-water marks were not found. The U.S. Geological Survey identified and flagged the high-water marks during October and November 2012 following Hurricane Sandy; and surveyed the marks during October and November...
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This service definition contains landscape factors representing human disturbances summarized to local and network catchments of river reaches for the Ohio River Basin Fish Habitat Partnership. This dataset is the result of clipping the feature class 'NFHAP 2010 HCI Scores and Human Disturbance Data for the Conterminous United States linked to NHDPLUSV1.gdb' to the boundary of the Ohio River Basin Fish Habitat Partnership. Landscape factors include land uses, population density, roads, dams, mines, and point-source pollution sites. The source datasets that were compiled and attributed to catchments were identified as being: (1) meaningful for assessing fish habitat; (2) consistent across the entire study area in...


map background search result map search result map GAGES-II: Geospatial Attributes of Gages for Evaluating Streamflow National Fish Habitat Action Plan (NFHAP) 2010 HCI Scores and Human Disturbance Data (linked to NHDPLUSV1) for Ohio River Basin Fish Habitat Partnership: ESRI Service Definition Water quality and optical absorbance data for groundwater samples collected during 2010 to 2012 from select Principal Aquifers of the United States Total Thickness of Glacial Deposits USGS Topo Map Vector Data (Vector) 72664 Avon, Connecticut 20180809 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 5283 Branford, Connecticut 20180809 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 76296 Clinton OE S, Connecticut 20180809 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 14153 Ellsworth, Connecticut 20180803 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 15381 Fitchville, Connecticut 20180803 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 28835 Meriden, Connecticut 20180803 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 30064 Moodus, Connecticut 20180803 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 31806 New Milford, Connecticut 20180803 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 40785 Sharon, Connecticut 20180803 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 42341 Southington, Connecticut 20180803 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 38819 Roxbury, Connecticut 20180803 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 49201 Willimantic, Connecticut 20180809 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 2758 Bayville, New York 20191118 for 7.5 x 7.5 minute FileGDB 10.1 High-water mark data from Hurricane Sandy for the coastal areas of Connecticut, Rhode Island, and Massachusetts, October 29-30, 2012 USGS 1:1,000,000-Scale Federal Lands of the United States 201412 FileGDB USGS Topo Map Vector Data (Vector) 72664 Avon, Connecticut 20180809 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 5283 Branford, Connecticut 20180809 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 76296 Clinton OE S, Connecticut 20180809 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 14153 Ellsworth, Connecticut 20180803 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 15381 Fitchville, Connecticut 20180803 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 28835 Meriden, Connecticut 20180803 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 30064 Moodus, Connecticut 20180803 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 31806 New Milford, Connecticut 20180803 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 40785 Sharon, Connecticut 20180803 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 42341 Southington, Connecticut 20180803 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 38819 Roxbury, Connecticut 20180803 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 49201 Willimantic, Connecticut 20180809 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 2758 Bayville, New York 20191118 for 7.5 x 7.5 minute FileGDB 10.1 High-water mark data from Hurricane Sandy for the coastal areas of Connecticut, Rhode Island, and Massachusetts, October 29-30, 2012 National Fish Habitat Action Plan (NFHAP) 2010 HCI Scores and Human Disturbance Data (linked to NHDPLUSV1) for Ohio River Basin Fish Habitat Partnership: ESRI Service Definition Water quality and optical absorbance data for groundwater samples collected during 2010 to 2012 from select Principal Aquifers of the United States Total Thickness of Glacial Deposits GAGES-II: Geospatial Attributes of Gages for Evaluating Streamflow USGS 1:1,000,000-Scale Federal Lands of the United States 201412 FileGDB