Search Results for the EPA National Library Catalog

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Rockville quadrangle, Maryland-Virginia, 1965 : 7.5 minute series (topographic) / 1984
Role of Organic Debris and Associated Micro-Organisms in Pelagic Estuarine Food Chains. 1973
Role of Organic Debris and Associated Microorganisms in Pelagic Estuarine Food Chains. 1972
Role of Research and Development in Water Resources Planning and Management for Achieving Urban Goals. 1972
Rural non-point pollution studies in Maryland : (non-point pollution studies on agricultural land use types prevalent in the coastal plain zone of Maryland / 1977
Rural non-point pollution studies in Maryland : (non-point pollution studies on agricultural land use types prevalent in the coastal plain zone of Maryland) / 1978
Safety evaluation of renovated wastewater from a poultry processing plant / 1979
Salt balance and exchange in the Rhode River : a tributary embayment to the Chesapeake Bay / 1975
Save water, maintenance, amd money and help save the bay : a homeowner's guide to water-conserving landscapes. / 1990
Scour at bridge sites in Delaware, Maryland, and Virginia 1996
Second Maryland Streams Symposium : August 10-13, 2005. 2005
Section 319 nonpoint source program success story Maryland : collaborative planning leads to community-wide solutions / {electronic resource} : 2005
Sediment biogeochemistry at site 104 open water placement area final report : characterization at site 104 open water placement area (June through August 1996) / 1997
Sediment carbon, oxygen and nutrient flux analysis at site 104 open water placement area (May-September 1996) / 1996
Sediment deposition in Lake Clarke, Lake Aldred, and Conowingo Reservoir, Pennsylvania and Maryland, 1910-93 1997
Sediment storage and transport in the mainstem Potomac River between Point of Rocks and Seneca Dam 1986
Sediment studies in Back River estuary, Baltimore, Maryland. 1976
Sediment Studies in Back River Estuary, Baltimore, Maryland. 1976
Sediment yields of urban construction sources, Montgomery County, Maryland : a progress report, Rock Creek-Anacostia River Basins : open-file report / 1972
Sediment-trap efficiency of a multiple-purpose impoundment, North Branch Rock Creek basin, Montgomery County, Maryland, 1968-76 / 1980
Sediment/water-column flux of nutrients and oxygen in the tidal Patuxent River and Estuary, Maryland / 1987
Sedimentary facies of the Aquia Formation in the subsurface of the Maryland Coastal Plain 1974
Seismic evidence for high angle reverse faulting in the coastal plain of Prince Georges, and Charles County, Maryland, 1972
Selected geohydrologic characteristics of the Patapsco aquifers at Chalk Point, Prince Georges County, Maryland 1988
Selected opinions of the Attorney General of Maryland pertaining to water resources management 1966
Seneca Creek Watershed model : documentation of the water quality calibration 1983
Seneca quadrangle, Maryland--Virginia, 1994 1998
Seston dynamics and a seston budget for the Choptank River estuary in Maryland final report / 1981
Severn Run watershed management study 1980
Shifting sands : environmental and cultural change in Maryland's coastal bays / 2009
Shoreline erosion in the upper Chesapeake Bay Point Lookout Park to Calvert Cliffs State Park, Maryland / 1989
Short Study of the Common and Statutory Water Law of Maryland and Virginia. 1969
Simple one dimensional kinematic model results for the Bush River and Romney Creek. 1976
Simulated changes in water level in the Piney Point aquifer in Maryland 1979
Simulated hydrologic effects of the development of the Patapsco Aquifer system in Glen Burnie, Anne Arundel County, Maryland 1991
Site 104 Benthic Community assessment report, Queen Anne's County, Maryland / 1998
Site 104 open-water dredged material placement area Chesapeake bay, Maryland : Hydraulic placement footprint modeling final report. / 1998
Site 104 open-water dredged material placement area Chesapeake Bay, Maryland coastal engineering : final report. / 1998
Site 104 water quality assessment report, Queen Anne's County, Maryland / 1998
Site selection and collection of bridge-scour data in Delaware, Maryland, and Virginia 1993
Small watershed grants program : FY 1998 : final report. 2000
Smart growth in Maryland. 2001
Smart growth options for Maryland's tributary strategies 1998
Soil survey of Allegany County, Maryland 1977
Soil survey of Anne Arundel County, Maryland 1973
Soil survey of Baltimore County, Maryland 1976
Soil survey of Cecil County, Maryland 1973
Soil survey of Charles County, Maryland 1974
Soil survey of Garrett County, Maryland 1974
Soil survey of Harford County area, Maryland 1975
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