| Main Title |
Hydrogeologic framework, ground-water geochemistry, and assessment of nitrogen yield from base flow in two agricultural watersheds, Kent County Maryland |
| Author |
Bachman, L. Joseph.
|
| Other Authors |
|
| CORP Author |
Geological Survey, Reston, VA.;National Risk Management Research Lab., Cincinnati, OH. |
| Publisher |
U.S. Environmental Protection Agency, National Risk Management Research Laboratory, |
| Year Published |
2002 |
| Report Number |
EPA/600/R-02/008 |
| Stock Number |
PB2003-103046 |
| OCLC Number |
50879586 |
| Subjects |
Groundwater--Pollution--Maryland--Kent County ;
Hydrogeology--Maryland
|
| Additional Subjects |
Hydrogeology ;
Ground water ;
Geochemistry ;
Nitrogen ;
Watersheds ;
Base flow ;
Water quality ;
Stratigraphy ;
Aquatic habitats ;
Streams ;
Nutrients ;
Estuaries ;
Stream flow ;
Maryland ;
Kent County(Maryland)
|
| Internet Access |
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| EHAD |
EPA/600/R-02-008 |
|
Region 1 Library/Boston,MA |
03/21/2003 |
| EJAD |
EPA 600/R-02-008 |
|
Region 3 Library/Philadelphia, PA |
11/22/2002 |
| EJBD |
EPA 600-R-02-008 |
|
Headquarters Library/Washington,DC |
10/03/2012 |
| EJDD |
EPA/600/R-02/008 |
|
Env Science Center Library/Ft Meade,MD |
02/20/2004 |
| ELBD ARCHIVE |
EPA 600-R-02-008 |
Received from HQ |
AWBERC Library/Cincinnati,OH |
10/04/2023 |
| ELBD |
EPA 600-R-02-008 |
|
AWBERC Library/Cincinnati,OH |
06/22/2007 |
| EMBD |
EPA/600/R-02/008 |
|
NRMRL/GWERD Library/Ada,OK |
12/27/2002 |
| ESAD |
EPA 600-R-02-008 |
2 copies |
Region 10 Library/Seattle,WA |
06/02/2016 |
| NTIS |
PB2003-103046 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
xii, 78 p. : col. ill., col. maps ; 28 cm. |
| Abstract |
Hydrostratigraphic and geochemical data collected in two adjacent watersheds on the Delmarva Peninsula, in Kent County, Maryland, indicate that shallow subsurface stratigraphy is an important factor that affects the concentrations of nitrogen in ground water discharging as stream base flow. The flux of nitrogen from shallow aquifers can contribute substantially to the eutrophication of streams and estuaries, degrading water quality and aquatic habitats. The information presented in this report includes a hydrostratigraphic framework for the Locust Grove study area, analyses and interpretation of ground-water chemistry, and an analysis of nutrient yields from stream base flow. An understanding of the processes by which ground-water nitrogen discharges to streams is important for optimal management of nutrients in watersheds in which ground-water discharge is an appreciable percentage of total streamflow. The U.S. Geological Survey, in cooperation with the U.S. Environmental Protection Agency (USEPA), collected and analyzed hydrostratigraphic and geochemical data in support of ground-water flow modeling by the USEPA. |
| Notes |
"IAG #DW14937941." "January 2002." |
