Use of Diverse Geochemical Data Sets to Determine Sources and Sinks of Nitrate and Methane in Groundwater, Garfield County, Colorado, 2009

Flash Floods of August 10, 2009, in the Villages of Gowanda and Silver Creek, New York

Factors Affecting Groundwater Quality in the Valley and Ridge Aquifers, Eastern United States, 1993–2002

Characterization of Salinity and Selenium Loading and Land-Use Change in Montrose Arroyo, Western Colorado, from 1992 to 2010

Geochemical Evolution Processes and Water-Quality Observations Based on Results of the National Water-Quality Assessment Program in the San Antonio Segment of the Edwards Aquifer, Texas, 1996-2006

Observed and Forecast Flood-Inundation Mapping Application: A Pilot Study of an Eleven-Mile Reach of the White River, Indianapolis, Indiana

Suspended-Sediment Loads, Reservoir Sediment Trap Efficiency, and Upstream and Downstream Channel Stability for Kanopolis and Tuttle Creek Lakes, Kansas, 2008–10

Prepared in cooperation with the New York City Department of Environmental Protection <p> <p> Preliminary Analysis of the Hydrologic Effects of Temporary Shutdowns of the Rondout-West Branch Water Tunnel on the Groundwater-Flow System in Wawarsing, New York

Prepared in cooperation with the Madison River Fisheries Technical Advisory Committee <p> Bureau of Land Management, Montana Department of Environmental Quality, Montana Fish, Wildlife and Parks, PPL-Montana, U.S. Department of Agriculture – Gallatin National Forest, U.S. Fish and Wildlife Service <p> <p> Lateral and Vertical Channel Movement and Potential for Bed-Material Movement on the Madison River Downstream from Earthquake Lake, Montana

Quantifying Components of the Hydrologic Cycle in Virginia using Chemical Hydrograph Separation and Multiple Regression Analysis

Water-quality characteristics and trend analyses for the Tongue, Powder, Cheyenne, and Belle Fourche River drainage basins, Wyoming and Montana, for selected periods, water years 1991 through 2010

Prepared in cooperation with the Harris–Galveston Subsidence District, <p> the Fort Bend Subsidence District, and <p> the Lone Star Groundwater Conservation District <p> <p> Hydrogeology and Simulation of Groundwater Flow and Land-Surface Subsidence in the Northern Part of the Gulf Coast Aquifer System, Texas, 1891–2009 <p>

Prepared in cooperation with the Virginia Department of Environmental Quality, Office of Surface Water Investigations <p> <p> Spatial and Temporal Trends in Runoff at Long-Term Streamgages within and near the Chesapeake Bay Watershed

Prepared in cooperation with the National Park Service and Amistad National Recreation Area <p> <p> Water Quality and the Composition of Fish and Macroinvertebrate Communities in the Devils and Pecos Rivers In and Upstream from the Amistad National Recreation Area, Texas, 2005–7 <p>

Prepared in cooperation with U.S. Army Maneuver Support Center at the Fort Leonard Wood Military Reservation <p> <p> Hydrologic and Sediment Data Collected From Selected Basins at the Fort Leonard Wood Military Reservation, Missouri—2010–11 <p>