Water-quality assessment of the Delmarva Peninsula, Delaware, Maryland, and Virginia--Effects of agricultural activities on, and distribution of, nitrate and other inorganic constituents in the surficial aquifer

Hamilton, Pixie A.; Denver, Judith M.; Phillips, Patrick J.; Shedlock, Robert J.

doi:10.3133/ofr9340

Cited by 62 publications

(63 citation statements)

References 7 publications

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“…Previous work has shown that multiple sources of data, for example, redox conditions, major-ion chemistry, and isotopic information, are necessary to more accurately determine N sources and the potential for transformations and losses of N during travel through an aquifer and into streams (Ator et al, 2005;Böhlke, 2002;Böhlke and Denver, 1995;Puckett, 2004;Tesoriero et al, 2009 (Denver, 1989;Hamilton et al, 1993 (Denver, 1989;Hamilton et al, 1993). In contrast, the geochemical signature of groundwater beneath turfgrass in residential lawns has not been determined in this region.…”

Section: Introductionmentioning

confidence: 99%

Suburban Groundwater Quality as Influenced by Turfgrass and Septic Sources, Delmarva Peninsula, USA

Kasper

Denver²,

York

2015

J. Environ. Qual.

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Section: Introductionmentioning

confidence: 99%

Suburban Groundwater Quality as Influenced by Turfgrass and Septic Sources, Delmarva Peninsula, USA

Kasper

Denver²,

York

2015

J. Environ. Qual.

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“…3-3). The water table is near the land surface in flat areas near streams and estuaries, but can be more than 30 ft deep beneath upland areas with hills and deep stream valleys, (8) and is more than 200 ft deep beneath parts of Long Island. (3) The relatively coarse and permeable sediments that compose the surficial aquifer system mostly are less than 100 ft thick, but in some areas are much thicker, particularly on Long Island and in southern New Jersey (500 to 800 ft).…”

Section: Hydrogeologic Settingmentioning

confidence: 99%

“…(8) Nitrate was one of the most common chemicals detected at concentrations greater than the national MCL in groundwater from domestic (1 percent) and public (2 percent) sources of drinking water. (19,20) Concentrations greater than the MCL in drinking water can put infants under the age of 6 months at risk of serious illness.…”

Section: Dieldrin and Nitrate Were The Chemicals From Human Sources Tmentioning

confidence: 99%

The quality of our Nation's waters: water quality in the Northern Atlantic Coastal Plain surficial aquifer system, Delaware, Maryland, New Jersey, New York, North Carolina, and Virginia, 1988-2009

Denver¹,

Ator²,

Fischer³

et al. 2015

Circular

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For more information on the USGS-the Federal source for science about the Earth, its natural and living resources, natural hazards, and the environment-visit http://www.usgs.gov or call 1-888-ASK-USGS. For an overview of USGS information products, including maps, imagery, and publications, visit http: //www.usgs.gov/pubprod To order this and other USGS information products, visit http://store.usgs.gov Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government.Although this information product, for the most part, is in the public domain, it also may contain copyrighted materials as noted in the text. Permission to reproduce copyrighted items must be secured from the copyright owner.Suggested citation: Denver, J.M., Ator, S.W., Fischer, J.M., Harned, D.C., Schubert, Christopher, and Szabo, Zoltan, 2014, The quality of our Nation's waters-Water quality in the Northern Atlantic Coastal Plain surficial aquifer system, Delaware, Maryland, New Jersey, New York, North Carolina, and Virginia, 1988-2009: U.S. Geological Survey Circular 1353. Library of Congress Cataloging-in-Publication DataDenver, J. M.The quality of our Nation's waters---water quality in the Northern Atlantic coastal plain surficial aquifer system, Delaware, Maryland, New Jersey, New York, North Carolina, and Virginia, 1988-2009 "USGS, through the NAWQA Program, has extensively studied the movement of nutrients through groundwater. We look forward to using this information as we work with state and local partners to implement practices on the land that have the greatest benefit to the quality of our local and Bay waters."Nick DiPasquale EPA Director of the Chesapeake Bay Program iv ForewordThe United States has made major investments in assessing, managing, regulating, and conserving natural resources, such as water and a variety of ecosystems. Sustaining the quality of the Nation's water resources and the health of our diverse ecosystems depends on the availability of sound water-resources data and information to develop effective, science-based policies. Effective management of water resources also brings more certainty and efficiency to important economic sectors. Taken together, these actions lead to immediate and long-term economic, social, and environmental benefits that make a difference to the lives of millions of people (http://water.usgs.gov/nawqa/applications/ ).Two decades ago, Congress established the U.S. Geological Survey's National Water-Quality Assessment (NAWQA) Program to meet this need. Since then NAWQA has served as a primary source of nationally consistent information on the quality of the Nation's streams and groundwater, on ways in which water quality changes over time, and on the natural features and human activities affecting the quality of streams and groundwater. Objective and reliable data, systematic scientific studies, and models are used to characterize where, when, and why the Nation's water quality is degraded-and what can be done to improve and...

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“…The natural background concentration of NO 3 --N in shallow groundwater of the Delmarva Peninsula, which provides a reference for identifying occurrences of elevated NO 3 --N, is 0.4 mg/L (Hamilton et al, 1993). Denver et al (2004) reported a median nitrate concentration (as N) of 5.4 mg/L in samples from 29 wells located in the surficial aquifer of agricultural areas within the peninsula.…”

mentioning

confidence: 99%

Riparian Buffer Landscape Effects on Groundwater Flow Paths and Nitrate Occurrences in Groundwater near Streams of the Eastern Shore of Virginia

Probasco¹

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Elevated concentrations of nitrate occur in groundwater throughout the United States due to the widespread application of nitrogenous fertilizers associated with agricultural land uses. Forested stream buffers, which separate upland agricultural areas from stream channels, are recognized for their importance as locations of groundwater nitrate removal through plant uptake and denitrification. An understanding of the groundwater hydrology of the buffer subsurface is important in being able to predict where denitrification can occur, since the groundwater hydrology determines the locations in which groundwater with elevated nitrate will intercept available supplies of organic matter. Previous studies have identified differences in the pattern of groundwater flow through riparian floodplains within stream buffers, which was related to differences in their ability to remove nitrate by denitrification. In this study, the effect of forested

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Water-quality assessment of the Delmarva Peninsula, Delaware, Maryland, and Virginia--Effects of agricultural activities on, and distribution of, nitrate and other inorganic constituents in the surficial aquifer

Cited by 62 publications

References 7 publications

Suburban Groundwater Quality as Influenced by Turfgrass and Septic Sources, Delmarva Peninsula, USA

Suburban Groundwater Quality as Influenced by Turfgrass and Septic Sources, Delmarva Peninsula, USA

The quality of our Nation's waters: water quality in the Northern Atlantic Coastal Plain surficial aquifer system, Delaware, Maryland, New Jersey, New York, North Carolina, and Virginia, 1988-2009

Riparian Buffer Landscape Effects on Groundwater Flow Paths and Nitrate Occurrences in Groundwater near Streams of the Eastern Shore of Virginia

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