Search Results for the EPA National Library Catalog

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Hydrogeology and ground-water resources of Somerset County, Maryland 1990
Hydrogeology and simulation of ground-water flow in the upper Wicomico River basin and estimation of contributing areas of the City of Salisbury well fields, Wicomico County, Maryland 1997
Hydrogeology and soil gas at J-Field, Aberdeen Proving Ground, Maryland 1993
Hydrogeology and stratigraphy of a 1,515-foot test well drilled near Princess Anne, Somerset County, Maryland 1990
Hydrogeology and water quality in the Graces Quarters area of Aberdeen Proving Ground, Maryland 1995
Hydrogeology and water quality of the Catoctin Mountain National Park Area, Frederick County, Maryland 1985
Hydrogeology of the Canal Creek area, Aberdeen Proving Ground, Maryland 1989
Hydrogeology of the carbonate rocks, Frederick and Hagerstown Valleys, Maryland, 1973
Hydrogeology of the coastal plain aquifer system in Queen Anne's and Talbot Counties, Maryland, with emphasis on water-supply potential and brackish-water intrusion in the Aquia aquifer 2001
Hydrogeology of the formation and neutralization of acid waters draining from underground coal mines of western Maryland 1973
Hydrogeology of the Triassic rocks of Maryland 1975
Hydrogeology of the Washington, D.C., area (Virginia, Maryland, District of Columbia) : Reston, Virginia to Prince Frederick, Maryland, July 14, 1989 / 1989
Hydrogeology, brackish-water occurrence, and simulation of flow and brackish-water movement in the Aquia aquifer in the Kent Island area, Maryland 1988
Hydrogeology, digital simulation, and geochemistry of the Aquia and Piney Point-Nanjemoy aquifer system in southern Maryland 1983
Hydrogeology, digital solute-transport simulation, and geochemistry of the Lower Cretaceous aquifer system near Baltimore, Maryland 1985
Hydrogeology, model simulation, and water-supply potential of the Aquia and Piney Point-Nanjemoy aquifers in Calvert and St. Mary's counties, Maryland 1997
Hydrogeology, simulation of ground-water flow, and ground-water quality of the upper Coastal Plain aquifers in Kent County, Maryland 1998
Hydrogeology, water-supply potential, and water quality of the coastal plain aquifers of Harford County, Maryland 1993
Hydrography of the Chesapeake and Delaware canal / 1974
Hydrologic and mining data from an area of underground coal mining in Garrett County, Maryland 1988
Hydrologic budget of the Beaverdam Creek Basin, Maryland 1959
Hydrologic data for Cecil County, Maryland 1987
Hydrologic data for Howard County, Maryland 1992
Hydrologic data: south branch Casselman River, Garrett County, and Marsh Run, Washington County, Maryland 1984
Hydrologic unit map--1974, States of Maryland and Delaware / 1974
Hydrological-biological models of the impact of entrainment of spawn of the striped bass (Morone saxatilis) in proposed power plants at two areas in the upper Chesapeake Bay 1975
Hydrology of area 6, Eastern Coal Province, Maryland, West Virginia, and Pennsylvania 1983
Hydrology of the Manokin, Ocean City, and Pocomoke aquifers of southeastern Delaware 1984
Hydrostratigraphic framework of the Piney Point-Nanjemoy aquifer and Aquia aquifer in Calvert and St. Mary's counties, Maryland 1996
I/M test variability / 1987
Identification and protection of reference wetland natural communities in Maryland : Delmarva Bay wetlands / 1999
Identification and protection of reference wetland natural communities in Maryland : Potomac watershed floodplain forests / 1999
Identification and Protection of Reference Wetland Natural Communities in Maryland: Potomac Watershed Floodplain Forests. 1999
Identifying potential asbestos exposures in schools : the Montgomery County experience / 1980
Immediate Water Pollution Control Needs, The Eastern Shore of Delaware, Maryland and Virginia. 1967
Immediate Water Pollution Control Needs. Central Western Shore of Chesapeake Bay Area (Magothy, Severn, South, and West River Drainage Areas). 1967
Immediate Water Pollution Control Needs. Northwest Chesapeake Bay Area (Patapsco to Susquehanna Drainage Basins in Maryland). 1967
Impact assessment of Craighill Channel dredged material placement in the deep trough 1990
Impact of the Chesapeake Bay Bridge-Tunnel on Baltimore's exports of corn and soybeans 1900
Implementation Plan for Removing Impediments to Migratory Fishes in the Chesapeake Bay Watershed (January-December 1991). 1991
Implementation plan for removing impediments to migratory fishes in the Chesapeake Bay Watershed : a commitment implementation plan from the Chesapeake Executive Council. 1989
Implementation Plan for Removing Impediments to Migratory Fishes in the Chesapeake Bay Watershed. Annual Progress Report, 1994. 1995
Implementation Plan for Removing Impediments to Migratory Fishes in the Chesapeake Bay Watershed. Annual Progress Report, January-December 1993. 1994
Implementation plan review for Maryland as required by the Energy Supply and Environmental Coordination Act. 1975
Index of existing data sources for Chincoteague, Sinepuxent, Assawoman and Little Assawoman Bays : report to the Maryland Department of Natural Resources / 1975
Index of hydrologic characteristics and data resources for the Gwynn Falls Watershed, Baltimore County, and Baltimore City, Maryland / 1999
Influence of ground water on nitrate loads of streams in the Upper Rock Creek basin, Montgomery County, Maryland 2000
Influence of salinity on the chronic toxicity of atrazine to sago pondweed : filling a data need for development of an estuarine chronic condition / 1998
Initial summary of current state capacity development activities. 1997
Inland Area Contingency Plan and Maps for Delaware, Maryland, West Virginia, District of Columbia (on CD-ROM). 1996
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