Relation of land use to nitrogen concentration in ground water in the Patuxent River Basin, Maryland

by McFarland, E. Randolph.
Published: U.S. Dept. of the Interior, U.S. Geological Survey ; Earth Science Information Center, Open-File Reports Section [distributor], 1995

Hydrogeologic framework, analysis of ground-water flow, and relations to regional flow in the fall zone near Richmond, Virginia

by McFarland, E. Randolph.
Published: U.S. Dept. of the Interior, U.S. Geological Survey ; Information Services [distributor], 1997

Ground-water flow, geochemistry, and effects of agricultural practices on nitrogen transport at study sites in the Piedmont and Coastal Plain physiographic provinces, Patuxent Rive...

by McFarland, E. Randolph.
Published: U.S. Dept. of the Interior, U.S. Geological Survey ; For sale by the U.S. Geological Survey, Branch of Information Services, 1997

The Virginia coastal plain hydrogeologic framework

by McFarland, E. Randolph.
Published: U.S. Dept. of the Interior, U.S. Geological Survey, 2006

Hydrogeologic framework and ground-water flow in the Fall Zone of Virginia

by McFarland, E. Randolph.
Published: U.S. Dept. of the Interior, U.S. Geological Survey ; Branch of Information Services [distributor], 1999

A conceptual framework and monitoring strategy for movement of saltwater in the coastal plain aquifer system of Virginia

by McFarland, E. Randolph,
Published: U.S. Department of the Interior, U.S. Geological Survey, 2015

Groundwater-quality data and regional trends in the Virginia coastal plain, 1906-2007

by McFarland, E. Randolph.
Published: U.S. Department of the Interior, U.S. Geological Survey, 2010

Hydrogeologic framework and hydrologic conditions of the Piney Point aquifer in Virginia

by McFarland, E. Randolph,
Published: U.S. Geological Survey, 2017

Sediment distribution and hydrologic conditions of the Potomac aquifer in Virginia and parts of Maryland and North Carolina

by McFarland, E. Randolph,
Published: U.S. Department of the Interior, U.S. Geological Survey, 2013

Design, revisions, and considerations for continued use of a ground-water-flow model of the coastal plain aquifer system in Virginia

by McFarland, E. Randolph.
Published: U.S. Dept. of the Interior, U.S. Geological Survey ; U.S. Geological Survey, Branch of Information Services [distributor], 1998

Hydrogeologic framework of the Virginia eastern shore

by McFarland, E. Randolph,
Published: U.S. Department of the Interior, U.S. Geological Survey, 2019

Design, revisions, and considerations for continued use of a ground-water-flow model of the coastal plain aquifer system in Virginia

by McFarland, E. Randolph,
Published: [USGS], 1998

Hydrogeologic framework, analysis of ground-water flow, and relations to regional flow in the fall zone near Richmond, Virginia

by McFarland, E. Randolph,
Published: U.S. Department of the Interior, U.S. Geological Survey, 1997

Relation of land use to nitrogen concentration in ground water in the Patuxent River Basin, Maryland

by McFarland, E. Randolph,
Published: U.S. Geological Survey, 1995

USGS ground-water flow model : an essential tool for managing the water supply of the Virginia coastal plain

by Erwin, Martha L.
Published: [U.S. Dept. of the Interior, U.S. Geological Survey], 1999

Private domestic-well characteristics and the distribution of domestic withdrawals among aquifers in the Virginia Coastal Plain

by Pope, Jason P.
Published: U.S. Dept. of the Interior, U.S. Geological Survey, 2008