Images

USGS hydrologic technician Amy Simonson surveying a high-water mark on Liberty Island, New York after Hurricane Sandy

Black tape is stretched across the stopper of the 'Niskin' bottle and secured to form a positive pressure seal.

USGS Water towers at Upper Midwest Environmental Sciences Center

Humpback Rocks Views

An Appalachian Mountain Stream in the Spring. Photographed by Samuel H Austin

Predicted concentrations of arsenic in groundwater exceed the Maximum Contaminant Level (MCL) of 10 μg/L in 43 percent of the areal extent of the four Southwest basin-fill aquifers.

2012 SPARROW Models for the Midwest: Total Phosphorus, Total Nitrogen, Suspended Sediment, and Streamflow

Tom Kehler, fishery biologist at the U.S.

Dried acid mine drainage residuals that are formed during treatment of the drainage.  The USGS has pioneered a new use for these residuals that are currently a disposal challenge, using them to filter phosphorus from agricultural and municipal wastewaters.

Liberty State Park, Jersey City, NJ; Chad Ostheimer surveying a high-water mark left October 29, 2012 by Hurricane Sandy.

Hurricane Sandy struck the New Jersey shore Oct. 29-31, 2012. Houses, cars and a street in Seaside Heights, NJ were covered in beach sand after Hurricane Sandy's storm tide receded.

Hurricane Sandy struck the New Jersey shore Oct. 29-31, 2012. This house in Mantoloking, NJ was partly collapsed after Hurricane Sandy's storm tide receded.

Picture showing the increased size of the sandbar after the November 2012 controlled flood from the Glen Canyon Dam. This location is 65 miles downstream from Lees Ferry and the view is looking downstream. These and additional photographs depicting the results of the recent controlled floods can be viewed online.

Travertine deposits near site 4 (Post Oak Falls near Tow, Texas, October 31, 2012) (photograph by Jennifer Wilson, U.S. Geological Survey).

SIR 2015–5098

Faulting in limestone outcrop downstream from where Greenwood Creek flows into the Colorado River, October 31, 2012 (photograph by Jennifer Wilson, U.S. Geological Survey).

SIR 2015–5098

Seeps along limestone outcrop downstream from where Jim John Creek flows into the Colorado River, October 31, 2012 (photograph by Jennifer Wilson, U.S. Geological Survey).

SIR 2015–5098

USGS scientists, Michael Noll and Amy Simonson, installing storm surge sensors before Hurricane Sandy

Looking west down Chicago River mainstem from the Chicago River Controlling Works where water enters from Lake Michigan.

Former Kanab North uranium mine on the edge of Kanab Creek, north of Grand Canyon.

Geyser cone in the El Tatio geyser field, Chile

Arkansas River at Dardanelle, Arkansas, during low-flow conditions on September 29, 2012. Photograph by Daniel M. Wagner, U.S. Geological Survey.