Publications
Access selected publications from the USGS Maryland-Delaware-DC Water Science Center. To access the full, searchable catalog of USGS publications, please visit the USGS Publications Warehouse.
Filter Total Items: 378
Synthesis of U.S. Geological Survey science for the Chesapeake Bay ecosystem and implications for environmental management Synthesis of U.S. Geological Survey science for the Chesapeake Bay ecosystem and implications for environmental management
The purpose of this report is to present a synthesis of the USGS Chesapeake Bay science related to the 2001-06 goals and provide implications for environmental management. The report provides USGS findings that address the science needs of the Chesapeake Bay Program (CBP) restoration goals and includes summaries of 1. land-use change; 2. water quality in the watershed, including...
Authors
Scott W. Ator, Vicki S. Blazer, John W. Brakebill, Donald R. Cahoon, Peter R. Claggett, Thomas M. Cronin, Judith M. Denver, Christine L. Densmore, Allen C. Gellis, Cliff R. Hupp, Jurate M. Landwehr, Michael J. Langland, Christopher A. Ottinger, Milan J. Pavich, Matthew C. Perry, Scott W. Phillips, Stephen D. Preston, Jeff P. Raffensperger, Barnett A. Rattner, Nancy B. Rybicki, Debra A. Willard
Effects of Withdrawals on Ground-Water Levels in Southern Maryland and the Adjacent Eastern Shore, 1980-2005 Effects of Withdrawals on Ground-Water Levels in Southern Maryland and the Adjacent Eastern Shore, 1980-2005
Ground water is the primary source of water supply in most areas of Maryland?s Atlantic Coastal Plain, including Southern Maryland. The counties in this area are experiencing some of the most rapid growth and development in the State, resulting in an increased demand for ground-water production. The cooperative, basic water-data program of the U.S. Geological Survey and the Maryland...
Authors
Daniel J. Soeder, Jeff P. Raffensperger, Mark R. Nardi
Pre-Restoration Geomorphic Characteristics of Minebank Run, Baltimore County, Maryland, 2002-04 Pre-Restoration Geomorphic Characteristics of Minebank Run, Baltimore County, Maryland, 2002-04
Data collected from 2002 through 2004 were used to assess geomorphic characteristics and geomorphic changes over time in a selected reach of Minebank Run, a small urban watershed near Towson, Maryland, prior to its physical restoration in 2004 and 2005. Longitudinal profiles of the channel bed, water surface, and bank features were developed from field surveys. Changes in cross-section...
Authors
Edward J. Doheny, Roger J. Starsoneck, Paul M. Mayer, Elise A. Striz
Changes in streamflow and water quality in selected nontidal basins in the Chesapeake Bay Watershed, 1985-2004 Changes in streamflow and water quality in selected nontidal basins in the Chesapeake Bay Watershed, 1985-2004
As part of an annual evaluation of water-quality conditions by the Chesapeake Bay Program, water-quality and streamflow data from 32 sites in nontidal parts of the Chesapeake Bay watershed were analyzed to document annual nutrient and sediment trends for 1985 through 2004. This study also formalized different trend tests and methodologies used in assessing the effectiveness of man...
Authors
Michael J. Langland, Jeff P. Raffensperger, Douglas Moyer, Jurate M. Landwehr, Gregory E. Schwarz
Water resources data Maryland, Delaware, and Washington, D.C., water year 2005, Volume 2. Ground-water data Water resources data Maryland, Delaware, and Washington, D.C., water year 2005, Volume 2. Ground-water data
Water resources data for the 2005 water year for Maryland, Delaware, and Washington, D.C. consist of records of water levels and water quality of ground-water wells. This report (Volume 2. Ground-Water Data) contains water levels at 352 observation wells, discharge records for 4 springs, and water quality at 118 wells. Locations of ground-water level wells are shown on figures 6 and 7...
Authors
Stephen E. Curtin, Deborah A. Bringman, Elizabeth H. Marchand
U.S. Geological Survey Chesapeake Bay Studies: Scientific Solutions for a Healthy Bay and Watershed U.S. Geological Survey Chesapeake Bay Studies: Scientific Solutions for a Healthy Bay and Watershed
The U.S. Geological Survey (USGS), the science agency for the Department of Interior (DOI), has the critical role of providing objective science to document and understand ecosystem change in the Chesapeake Bay and its watershed. The human population in the Bay watershed, which grew from 8.1 million in 1950 to almost 16 million in 2000, has resulted in degraded water quality, loss of...
Authors
Scott Phillips
Simulation of nutrient and sediment concentrations and loads in the Delaware inland bays watershed: Extension of the hydrologic and water-quality model to ungaged segments Simulation of nutrient and sediment concentrations and loads in the Delaware inland bays watershed: Extension of the hydrologic and water-quality model to ungaged segments
Rapid population increases, agriculture, and industrial practices have been identified as important sources of excessive nutrients and sediments in the Delaware Inland Bays watershed. The amount and effect of excessive nutrients and sediments in the Inland Bays watershed have been well documented by the Delaware Geological Survey, the Delaware Department of Natural Resources and...
Authors
Angelica L. Gutierrez-Magness
Proceedings of the U.S. Geological Survey Sixth Biennial Geographic Information Science Workshop, Denver, Colorado, April 24-28, 2006 Proceedings of the U.S. Geological Survey Sixth Biennial Geographic Information Science Workshop, Denver, Colorado, April 24-28, 2006
The U.S. Geological Survey's (USGS) Sixth Biennial Geographic Information Science Workshop April 24 - 28, 2006, at the Denver Federal Center in Denver, Colorado, provides a unique opportunity for multi-disciplinary Geographic Information Systems (GIS) and associated scientific professionals to share, learn, present, and discuss a wide variety of geospatial-related topics. Information is...
Authors
John W. Brakebill, Jennifer B. Sieverling, Peter G. Chirico
Water resources data Maryland, Delaware, and Washington, D.C.,water year 2005, Volume 1. Surface-water data Water resources data Maryland, Delaware, and Washington, D.C.,water year 2005, Volume 1. Surface-water data
Water resources data for the 2005 water year for Maryland, Delaware, and Washington, D.C. consist of records of stage, discharge, and water quality of streams; stage and contents of lakes and reservoirs. This volume (Volume 1. Surface-Water Data) contains records for water discharge at 145 gaging stations; stage and contents of 1 reservoir; stage only for 2 tidal gaging station; and...
Authors
Richard W. Saffer, Robert H. Pentz, Anthony J. Tallman
Occurrence and distribution of mercury in the surficial aquifer, Long Neck Peninsula, Sussex County, Delaware, 2003–04 Occurrence and distribution of mercury in the surficial aquifer, Long Neck Peninsula, Sussex County, Delaware, 2003–04
In January 2001, mercury (Hg) was detected (500 nanograms per liter, ng/L, or greater) in the distribution system of the Long Neck Water Company (LNWC), Pot Nets, Delaware. By April 2001, two LNWC production wells had been taken off-line because discharge concentrations of total mercury (HgT) either had exceeded or approached the Federal limit of 2,000 ng/L. From October 2003 through...
Authors
Michael T. Koterba, A. Scott Andres, Joseph Vrabel, Dianna M. Crilley, Zoltan Szabo, John F. DeWild, George R. Aiken, Betzaida Reyes-Padro
Sustainability of the Ground-Water Resources in the Atlantic Coastal Plain of Maryland Sustainability of the Ground-Water Resources in the Atlantic Coastal Plain of Maryland
No abstract available.
Authors
Robert J. Shedlock, David W. Bolton
Watershed characteristics and pre-restoration surface-water hydrology of Minebank Run, Baltimore County, Maryland, water years 2002-04 Watershed characteristics and pre-restoration surface-water hydrology of Minebank Run, Baltimore County, Maryland, water years 2002-04
Stream restoration efforts have been ongoing in Maryland since the early 1990s. Physical stream restoration often involves replacement of lost sediments to elevate degraded streambeds, re-establishment of riffle-pool sequences along the channel profile, planting vegetation in riparian zones, and re-constructing channel banks, point bars, flood plains, and stream-meanders. The primary...
Authors
Edward J. Doheny, Roger J. Starsoneck, Elise A. Striz, Paul M. Mayer