Potentiometric Surface of the Upper Floridan Aquifer, West-Central Florida, May 2006
A.G. Ortiz
2007, Open-File Report 2007-1032
Introduction Hydrologic Conditions in West-Central Florida The Floridan aquifer system consists of the Upper and Lower Floridan aquifers separated by the middle confining unit. The middle confining unit and the Lower Floridan aquifer in west-central Florida generally contain highly mineralized water. The...
Ground-Water Hydrology of the Upper Klamath Basin, Oregon and California
Marshall W. Gannett, Kenneth E. Lite Jr., Jonathan L. La Marche, Bruce J. Fisher, Danial J. Polette
2007, Scientific Investigations Report 2007-5050
The upper Klamath Basin spans the California-Oregon border from the flank of the Cascade Range eastward to the Basin and Range Province, and encompasses the Klamath River drainage basin above Iron Gate Dam. Most of the basin is semiarid, but the Cascade Range and uplands in the interior and eastern...
The Role of Fuel Breaks in the Invasion of Nonnative Plants
Kyle E. Merriam, Jon E. Keeley, Jan L. Beyers
2007, Scientific Investigations Report 2006-5185
Executive Summary Fuel reduction projects have become an increasingly important component of state and federal fuels management programs. However, an unintended result of some pre-fire fuel manipulation projects may be the introduction of nonnative invasive plants. The establishment of nonnative plants within fuel breaks is a serious concern because the presence...
Exchanges of Water between the Upper Floridan Aquifer and the Lower Suwannee and Lower Santa Fe Rivers, Florida
J. W. Grubbs, C. A. Crandall
2007, Professional Paper 1656-C
Exchanges of water between the Upper Floridan aquifer and the Lower Suwannee River were evaluated using historic and current hydrologic data from the Lower Suwannee River Basin and adjacent areas that contribute ground-water flow to the lowest 76 miles of the Suwannee River and the lowest 28 miles of the...
Organic-carbon sequestration in soil/sediment of the Mississippi River deltaic plain — Data; landscape distribution, storage, and inventory; accumulation rates; and recent loss, including a post-Katrina preliminary analysis
Helaine W. Markewich, Gary R. Buell, Louis D. Britsch, John P. McGeehin, John A. Robbins, John H. Wrenn, Douglas L. Dillon, Terry L. Fries, Nancy R. Morehead
2007, Professional Paper 1686-B
Soil/sediment of the Mississippi River deltaic plain (MRDP) in southeastern Louisiana is rich in organic carbon (OC). The MRDP contains about 2 percent of all OC in the surface meter of soil/sediment in the Mississippi River Basin (MRB). Environments within the MRDP differ in soil/sediment organic carbon (SOC) accumulation rate,...
Selenium and Mercury Concentrations in Fish, Wolford Mountain Reservoir, Colorado, 2005
Nancy J. Bauch
2007, Scientific Investigations Report 2007-5019
A reconnaissance investigation of selenium and total mercury in fish in Wolford Mountain Reservoir, Colorado, was conducted by the U.S. Geological Survey in June 2005, in cooperation with the Colorado River Water Conservation District. A total of 32 game and nongame fish were collected from three sites in the reservoir...
How Much Water Is in the Apalachicola, Chattahoochee, and Flint Rivers, and How Much Is Used?
Mark N. Landers, Jaime A. Painter
2007, Fact Sheet 2007-3034
Questions of how much water is in the Apalachicola, Chattahoochee, and Flint (ACF) Rivers and how much is used do not have simple answers. The answers depend on the location in the river basin and on the year and season (as discussed on the first two pages of this fact...
Methods for Estimating Annual Wastewater Nutrient Loads in the Southeastern United States
Gerard McMahon, Larinda Tervelt, William Donehoo
2007, Open-File Report 2007-1040
This report describes an approach for estimating annual total nitrogen and total phosphorus loads from point-source dischargers in the southeastern United States. Nutrient load estimates for 2002 were used in the calibration and application of a regional nutrient model, referred to as the SPARROW (SPAtially Referenced Regression On Watershed attributes)...
Hydraulic Geometry Characteristics of Continuous-Record Streamflow-Gaging Stations on Four Urban Watersheds Along the Main Stem of Gwynns Falls, Baltimore County and Baltimore City, Maryland
Edward J. Doheny, Gary T. Fisher
2007, Scientific Investigations Report 2006-5190
Four continuous-record streamflow-gaging stations are currently being operated by the U.S. Geological Survey on the main stem of Gwynns Falls in western Baltimore County and Baltimore City, Maryland. The four streamflow-gaging stations drain urban or suburban watersheds with significantly different drainage areas. In addition to providing continuous- record discharge data...
Summary of ground-water-quality data in the Anacostia River watershed, Washington, D.C., September-December 2005
Cheryl A. Klohe, Linda M. Debrewer
2007, Open-File Report 2006-1392
The U.S. Geological Survey, in cooperation with the District Department of the Environment (formerly the District of Columbia, Department of Health, Environmental Health Administration), conducted a ground-water-quality investigation in the Anacostia River watershed within Washington, D.C. Samples were collected and analyzed from 17 ground-water monitoring wells located within the study...
Landsat Image Mosaic of Antarctica
Water Resources Division, U.S. Geological Survey
2007, Fact Sheet 2007-3016
Description Fact sheet introduces the Landsat Image Mosaic of Antarctica (LIMA) with images from a section of the mosaic over McMurdo Station, descriptions of the four versions of LIMA, where to access and download LIMA, and a brief explanation of the Antarctic Web portal....
The National Map - Orthoimagery Layer
Water Resources Division, U.S. Geological Survey
2007, Fact Sheet 2007-3008
Many Federal, State, and local agencies use a common set of framework geographic information databases as a tool for economic and community development, land and natural resource management, and health and safety services. Emergency management and homeland security applications rely on this information. Private industry, nongovernmental organizations, and individual citizens...
Effects of climatic extremes on ground water in western Utah, 1930-2005
Joseph S. Gates
2007, Scientific Investigations Report 2007-5045
Climatic extremes affect ground-water levels and quality in the basins of western Utah. The five droughts since 1930: 1930-36, 1953-65, 1974-78, 1988-93, and 1999-2004—resulted in much-less-than-average recharge, and the pronounced wet period of 1982-86 resulted in much-greater-than-average recharge. Decreased recharge lowered the ground-water level, and increased recharge raised it. These...
Questa baseline and pre-mining ground-water quality investigation 15.—Methods of phase II and III well installation and development and results of well logging, hydraulic testing, and water-level measurements in the Red River Valley, New Mexico, 2002-04
Paul J. Blanchard, James R. Bartolino, Lisa C. Donohoe, Douglas P. McAda, Cheryl A. Naus, Roger H. Morin
2007, Scientific Investigations Report 2006-5246
In April 2001, the U.S. Geological Survey and the New Mexico Environment Department began a cooperative study to infer the pre-mining ground-water chemistry at the Molycorp molybdenum mine site in the Red River Valley of north- central New Mexico. This report is one in a series of reports that can...
Rainforest birds: A land manager's guide to breeding bird habitat in young conifer forests in the Pacific Northwest
Bob Altman, Joan Hagar
2007, Scientific Investigations Report 2006-5304
This document (hereafter Guide) has been prepared to assist land managers interested in conducting conservation and management activities to benefit breeding birds associated with young conifer forests in the Pacific Northwest. Audiences targeted for use of the Guide include land trusts, watershed councils, non-commercial private land owners, forest products companies,...
Geologic resource evaluation of Pu‘uhonua O Hōnaunau National Historical Park, Hawai‘i. Part II: Benthic habitat mapping
Susan A. Cochran, Ann E. Gibbs, Joshua B. Logan
2007, Scientific Investigations Report 2006-5258
In cooperation with the U.S. National Park Service (NPS), the U.S. Geological Survey (USGS) has mapped the underwater environment in and adjacent to three parks along the Kona coast on the island of Hawai‘i. This report is the second of two produced for the NPS on the geologic resource evaluation...
Site Report for USGS Test Holes Drilled at Cape Charles, Northampton County, Virginia, in 2004
Gregory S. Gohn, Ward E. Sanford, David S. Powars, J. Wright Horton Jr., Lucy E. Edwards, Roger H. Morin, Jean M. Self-Trail
2007, Open-File Report 2007-1094
The U.S. Geological Survey drilled two test holes near Cape Charles, Virginia, during May and June 2004, as part of an investigation of the buried, late Eocene Chesapeake Bay impact structure. The first hole is designated as the USGS-Sustainable Technology Park test hole #1 (USGS-STP1). This test hole was abandoned...
Reproductive and Endocrine Biomarkers in Largemouth Bass (Micropterus salmoides) and Common Carp (Cyprinus carpio) from United States Waters
Steven L. Goodbred, Stephen B. Smith, Patricia S. Greene, Richard H. Rauschenberger, Timothy M. Bartish
2007, Data Series 227
A nationwide reconnaissance investigation was initiated in 1994 to develop and evaluate a suite of reproductive and endocrine biomarkers for their potential to assess reproductive health and status in teleost (bony) fish. Fish collections were made at 119 sites, representing many regions of the country and land- and water-use settings....
Enhanced Historical Land-Use and Land-Cover Data Sets of the U.S. Geological Survey
Curtis V. Price, Naomi Nakagaki, Kerie J. Hitt, Rick M. Clawges
2007, Data Series 240
Historical land-use and land-cover data, available from the U.S. Geological Survey (USGS) for the conterminous United States and Hawaii, have been enhanced for use in geographic information systems (GIS) applications. The original digital data sets were created by the USGS in the late 1970s and early 1980s and were later...
Biomarker Benchmarks: Reproductive and Endocrine Biomarkers in Largemouth Bass and Common Carp from United States Waters
Steven L. Goodbred, Stephen B. Smith, Patricia S. Greene, Richard H. Rauschenberger, Timothy M. Bartish
2007, Fact Sheet 2007-3026
The U.S. Geological Survey (USGS) has developed a national database and report on endocrine and reproductive condition in two species of fish collected in U.S. streams and rivers. This information provides scientists with a national basis for comparing results of endocrine measurements in fish from individual sites throughout the country,...
Simulation of Flood Profiles for Fivemile Creek at Tarrant, Alabama, 2006
K.G. Lee, T.S. Hedgecock
2007, Open-File Report 2007-1030
A one-dimensional step-backwater model was used to simulate flooding conditions for Fivemile Creek at Tarrant, Alabama. The 100-year flood stage published in the current flood insurance study for Tarrant by the Federal Emergency Management Agency was significantly exceeded by the March 2000 and May 2003 floods in this area. A...
Proceedings of the Fourth Glacier Bay Science Symposium
John F. Piatt, Scott M. Gende
2007, Scientific Investigations Report 2007-5047
Foreword Glacier Bay was established as a National Monument in 1925, in part to protect its unique character and natural beauty, but also to create a natural laboratory to examine evolution of the glacial landscape. Today, Glacier Bay National Park and Preserve is still a place of profound natural beauty...
Geological assessment of cores from the Great Bay National Wildlife Refuge, New Hampshire
Nora K. Foley, Robert A. Ayuso, Joseph D. Ayotte, Denise L. Montgomery, Gilpin R. Robinson Jr.
2007, Scientific Investigations Report 2006-5203
Geological sources of metals (especially arsenic and zinc) in aquifer bedrock were evaluated for their potential to contribute elevated values of metals to ground and surface waters in and around Rockingham County, New Hampshire. Ayotte and others (1999, 2003) had proposed that arsenic concentrations in ground water flowing through bedrock...
Assessment of artificial recharge at Sand Hollow Reservoir, Washington County, Utah, updated to conditions through 2006
Victor M. Heilweil, David D. Susong
2007, Scientific Investigations Report 2007-5023
Sand Hollow, Utah, is the site of a surface-water reservoir completed in March 2002 and operated by the Washington County Water Conservancy District (WCWCD) primarily as an aquifer storage and recovery project. The reservoir is an off-channel facility that receives water from the Virgin River, diverted near the town of...
Vertical gradients in water chemistry and age in the Northern High Plains Aquifer, Nebraska, 2003
P.B. McMahon, J.K. Böhlke, C. P. Carney
2007, Scientific Investigations Report 2006-5294
The northern High Plains aquifer is the primary source of water used for domestic, industrial, and irrigation purposes in parts of Colorado, Kansas, Nebraska, South Dakota, and Wyoming. Despite the aquifer’s importance to the regional economy, fundamental ground-water characteristics, such as vertical gradients in water chemistry and age, remain poorly...
