Chesapeake Bay Watershed Model Land Use and Model L to the Airshed and Estuarine Models Prepared by the Modeling Subcommittee of the Chesapeake Bay Progam January 2000 Chesapeake Bay Program ------- CHESAPEAKE BAY WATERSHED MODEL LAND USES AND LINKAGES TO THE AIRSHED AND ESTUARINE MODELS A Report of the Modeling Subcommittee Chesapeake Bay Program Office Annapolis, MD January 2000 ------- Principal Authors Katharine Hopkins UMCES, Chesapeake Bay Program Office Annapolis, MD Bill Brown UMD, Chesapeake Bay Program Office Annapolis, MD Lewis C. Linker U.S. EPA Chesapeake Bay Program Office Annapolis, MD Russell L. Mader, Jr. USDA/NRCS Chesapeake Bay Program Office Annapolis, MD ------- Table of Contents Section Page 1 Phase 4.2 Watershed Model (WSM) Segmentation 7 2 Chesapeake Bay Program Land Use (CBPLU) 26 3 Phase 4.2 Watershed Model Land Use Classification 38 4 Land Use Hindcasting and Forecasting 48 5 Airshed, Watershed, and Estuarine Model Linkages 67 6 Chesapeake Bay Estuary Model Cells Identified as Potential SAY Habitat 72 ------- Table of Figures Figure Page 1 Location of the Chesapeake Bay Watershed in the Mid-Atlantic States 9 2 Major Basins of the Chesapeake Bay Watershed 10 3 Chesapeake Bay Program 11 Digit HUCS 11 4 Above and Below Fall Line Segments in the Phase 4.2 Chesapeake Bay Watershed Model 12 5 Above Fall Line Segments in the Phase 4.2 Chesapeake Bay Watershed Model 13 6 Below Fall Line Segments in the Phase 4.2 Chesapeake Bay Watershed Model 14 7 County-Segments in the Phase 4.2 Chesapeake Bay Watershed Model 15 8.1 State and County Boundaries - Susquehanna River Basin 16 8.2 State and County Boundaries - Patuxent River Basin 17 8.3 State and County Boundaries - Potomac River Basin 18 8.4 State and County Boundaries - Rappahannock River Basin 19 8.5 State and County Boundaries - York River Basin 20 8.6 State and County Boundaries - James River Basin 21 8.7 State and County Boundaries - Western Shore River Basins 22 8.8 State and County Boundaries - Eastern Shore River Basins 23 9 Chesapeake Bay Program Land Use (CBPLU) 28 10 CBPLU Herbaceous Acres vs. US Agricultural Census Agricultural Land 40 11 Regional Acid Deposition Model (RADM) Refined Grid (20 x 20 km) Domain 69 12 Regional Acid Deposition Model (RADM) Grid, Chesapeake Bay Watershed Model Segments, and Chesapeake Bay Water Quality Model Cells 70 13 Phase 4.2 Watershed Model Subsegments and Tributary Model Cells 71 14 Submerged Aquatic Vegetation (SAY) Grow Cells in the Water Quality Model 75 ------- Table of Tables Table Page 1 County-Segments sorted by Basin, State, County, and Model Segment 24 2 Percent Area with Unassigned EMAP Data by County-Segment 29 3 1990 CBP Land Use in Acres by Phase 4.2 Watershed Model County-Segment 31 4 Agricultural Land Use Data in the U.S. Agricultural Census 38 5 U.S. Agricultural Census Animal Population Data 42 6 1990 Phase 4.2 Watershed Model Land Use in Acres by Major Basins 43 7 Hindcasted 1985 Phase 4.2 Chesapeake Bay Watershed Model Land Use 49 8 Forecasted 1998 Phase 4.2 Chesapeake Bay Watershed Model Land Use 55 9 Forecasted 2000 Phase 4.2 Chesapeake Bay Watershed Model Land Use 61 10 Expected Annual State Trends by Animal Species 48 ------- Section 1. Phase 4.2 Watershed Model (WSM) Segmentation The Chesapeake Bay watershed covers just over 41million acres. The area stretches from southern New York, through Pennsylvania, Maryland, and Washington D.C., to southern Virginia. It includes portions of Delaware and West Virginia on its eastern and western borders, respectively (Figure 1). The Chesapeake Bay watershed is comprised of eight major basins or sub-watersheds. These smaller watersheds drain the Susquehanna, Patuxent, Potomac, Rappahannock, York, and James rivers as well as the Eastern and Western Bay shores, which are comprised of many smaller rivers and creeks (Figure 2). The Chesapeake Bay watershed can be further divided into sub-watersheds based on state hydrologic units, known as HUCS. State, federal, and local government agencies use hydrologic units for hydrologic planning and management. Although hydrologic units are delineated roughly to follow watershed lines, they are intended for administrative use rather than to identify surface water drainage patterns. New York, Pennsylvania, Maryland, Delaware, Virginia, and West Virginia provide hydrologic unit data to the Chesapeake Bay Program. The boundaries provided by Delaware are not officially recognized hydrologic units but are watershed boundaries. Adjacent hydrologic units that terminated at state boundaries were aggregated by the Chesapeake Bay Program to approximate entire sub-watersheds. There are just over 500 hydrologic units at the 11- digit HUCS level (Figure 3). Small but relatively homogenous hydrologic units are aggregated into larger watershed areas, or model segments, for ease of model calculation. Model segment size is dictated by terrain and soil properties, location of model calibration stations, model computation time, and availability of pertinent model input data. Model segments containing calibration stations are occasionally altered slightly from their original hydrologic boundaries so that their downstream edge coincides with the U.S. Geological Survey (USGS) water quality monitoring station. This process resulted in 89 watershed model segments for the Chesapeake Bay (Figure 4). The tidal shoreline of the model segments come from the National Oceanographic and Atmospheric Administration (NOAA) data and satellite imagery and was delineated at (1:10000 to 1:80000). Model segments are subdivided into above and below fall line segments. Both above and below fall line segments simulate land processes associated with edge of stream nutrient and sediment loads. Above fall line segments have edge of stream loads which are delivered to the Bay's non-tidal rivers. These model segments also simulate riverine processes through which loads are delivered downstream to the Bay. There are 43 above fall line segments covering 32.5 million acres (Figure 5). Below fall line segments are adjacent to the Bay where free flowing rivers are too small to be simulated. Edge of stream loads in below fall line segments are delivered directly to the Bay. There are 46 below fall line segments that cover 8.5 million acres (Figure 6). Geographic Information Systems (GIS) data are maintained spatially in a file called a cover or a shape file. Some data are not available in spatial GIS databases, but rather are in traditional tabular format such as the county-based Agricultural Census data from the 7 ------- U.S. Department of Agriculture (USDA). The Watershed Model requires input data on a segment basis. In order to distribute county based data into segments, a new cover of county-segments (Cosegs) is created, formed by the union of a cover of county lines (from the USGS) and our cover of segment lines. The new cover contains county- segments (Coseg), which are the smallest units that can be formed both with county and segment boundaries (Figure 7). Each county-segment has a unique identifying number devised from the model segment number and the county FIPS code. One model segment, for example, might contain parts of four counties, and thus would be comprised of four cosegs, each with the same segment number but different FIPS codes. Likewise, a county might cross two segments and would be comprised of two cosegs with the same FIPS code but different segment numbers. Figures 8.1 - 8.8 show the segment and county lines by major Chesapeake Bay basin. Table 1 can be used to look up coseg numbers by segment number and county name. 8 ------- ------- Major Basins of the Chesapeake Bay Watershed EASTERN SHORE JAMES RIVER BASIN PATUXENT RIVER BASIN POTOMAC RIVER BASIN RAPPAHANNOCK RIVER BASIN SUSQUEHANNA RIVER BASIN WESTERN SHORE YORK RIVER BASIN Location of the Chesapeake Bay Watershed in the Mid-Atlantic States 30 0 30 60 Miles Chesapeake Bay Program + ------- Figure 3 Chesapeake Bay Program 11 Digit HUCS Location of the Chesapeake Bay Watershed in the Mid-Atlantic States 30 0 30 60 Miles Chesapeake Bay Program ------- Figure 4 Above and Below Fall Line Segments in the Phase 4.2 Chesapeake Bay Watershed Model Location of the Chesapeake Bay Watershed in the Mid-Atlantic States ------- Figure 5 Above Fall Line Segments in the Phase 4.2 Chesapeake Bay Watershed Model Location of the Above Fall Line Segments in the Chesapeake Bay Watershed 30 0 30 60 Miles Chesapeake Bay Program ------- Figure 6 Below Fall Line Segments in the Phase 4.2 Chesapeake Bay Watershed Model Location of the Below Fall Line Segments in the Chesapeake Bay Watershed 10 0 10 20 Miles Chesapeake Bay Program ------- Figure 7 County-Segments in the Phase 4.2 Chesapeake Bay Watershed Model Location of the Chesapeake Bay Watershed in the Mid-Atlantic States ------- Figure 8.1 Susquehanna River Basin Watershed Model Segments with State and County Boundaries :KIMER] ONEIDA ONOND^G) MADISON CORTLAND 5CWOHARIE CHENANGO lELAWARj ALdEGANY STEUBEN CHEMUNG BROOME TIOGA SUSQUEHANNA BRADFORD POTTER WYOMING IERON SULLIVAN LACKAWANI LYCOMING CLINTON LUZERNE COLUMBIA UNION CLEARFIELD CENTRE NORTHUMBERLAND SNYDER SCHUYLKIJ -AMBRIA JUNIATA BLAIR DAUPHIN LEBANON, PERRY CUMBERLAND LANCASTER FULTON BEDFORD :RANKLIN YORK ADAMS iRFORD /S/ State Boundary WSM Segments and Contiguous County Lines /\/ County Lines Susquehanna River Basin in the Chesapeake Bay Watershed Chesapeake Bay Program ------- Patuxent River Basin Watershed Model Segments with State and County Boundaries Figure 8.2 Patuxent River Basin in the Chesapeake Bay Watershed 45 State Boundary /V WSM Segments and Contiguous County Lines /V County Lines 0 14 Miles Chesapeake Bay Program N + ------- Potomac River Basin Figure 8.3 Watershed Model Segments with State and County Boundaries Potomac River Basin in the Chesapeake Bay Watershed Chesapeake Bay Program ------- ------- York River Basin Figure 8.5 Watershed Model Segments with State and County Boundaries York River Basin in the Chesapeake Bay Watershed 45 State Boundary /V WSM Segments and Contiguous County Lines /V County Lines 0 9 18 Miles Chesapeake Bay Program N + ------- Figure 8.6 James River Basin Watershed Model Segments with State and County Boundaries HIGHLAND/ MJ GUST J CHARLOTTESVILLE ALBEMARLE ^ ALLEGHANY SI CLIFTC CO VINSON . ROCKBRIDGE LEXirS^TON / FLUVANNA NELSON BUENkWeTi GOOCHLAND BOTETOURT AMHERST BUCKINGHAM CUMBERLAND :DFORt CRAIG POWHATAN APPOMATTOX I NEW KENT, .CHESTERFIELD AMELIA CHARLES CITY /ILLIAMSBURG iWEL3 PRINCE EDWARD PRINC3GEOF JOTTOW/ 3ORT NEWS porarsMOUTj James River Basin in the Chesapeake Bay Watershed State Boundary /V WSM Segments and Contiguous County Lines /V County Lines JO 20 0 20 40 Miles Chesapeake Bay Program N + ------- Figure 8.7 Western Shore River Basins Watershed Model Segments with State and County Boundaries Western Shore River Basins in the Chesapeake Bay Watershed 45 State Boundary /V WSM Segments and Contiguous County Line! /V County Lines 8 0 8 16 Miles Chesapeake Bay Program N + ------- Eastern Shore River Basins Watershed Model Segments with State and County Boundaries Figure 8.8 Eastern Shore River Basins in the Chesapeake Bay Watershed 45 State Boundary /V WSM Segments and Contiguous County Lines /V County Lines 20 0 20 40 Miles Chesapeake Bay Program ------- Table 1. County Segments by Basin, State, County, and Segment Basin State County SEG COSEG Susq. MD BALTIMORE 450 450024005 Susq. MD CARROLL 110 110024013 Susq. MD CECIL 140 140024015 Susq. MD CECIL 450 450024015 Susq. MD HARFORD 140 140024025 Susq. MD HARFORD 450 450024025 Susq. NY ALLEGANY 10 10036003 Susq. NY BROOME 20 20036007 Susq. NY CHEMUNG 10 10036015 Susq. NY CHEMUNG 20 20036015 Susq. NY CHENANGO 20 20036017 Susq. NY CORTLAND 20 20036023 Susq. NY DELAWARE 20 20036025 Susq. NY HERKIMER 20 20036043 Susq. NY LIVINGSTON 10 10036051 Susq. NY MADISON 20 20036053 Susq. NY ONEIDA 20 20036065 Susq. NY ONONDAGA 20 20036067 Susq. NY ONTARIO 10 10036069 Susq. NY OTSEGO 20 20036077 Susq. NY SCHOHARIE 20 20036095 Susq. NY SCHUYLER 10 10036097 Susq. NY SCHUYLER 20 20036097 Susq. NY STEUBEN 10 10036101 Susq. NY TIOGA 20 20036107 Susq. NY TOMPKINS 20 20036109 Susq. NY YATES 10 10036123 Susq. PA ADAMS 110 110042001 Susq. PA BEDFORD 90 90042009 Susq. PA BEDFORD 100 100042009 Susq. PA BERKS 110 110042011 Susq. PA BERKS 720 720042011 Susq. PA BLAIR 90 90042013 Susq. PA BLAIR 100 100042013 Susq. PA BRADFORD 10 10042015 Susq. PA BRADFORD 20 20042015 Susq. PA BRADFORD 30 30042015 Susq. PA BRADFORD 70 70042015 Susq. PA BRADFORD 700 700042015 Susq. PA CAMBRIA 50 50042021 Susq. PA CAMBRIA 90 90042021 Susq. PA CAMERON 60 60042023 Susq. PA CENTRE 50 50042027 Susq. PA CENTRE 60 60042027 Susq. PA CENTRE 70 70042027 Susq. PA CENTRE 80 80042027 Susq. PA CENTRE 100 100042027 Susq. PA CHESTER 120 120042029 Susq. PA CHESTER 450 450042029 Susq. PA CHESTER 720 720042029 Susq. PA CLEARFIELD 50 50042033 Susq. PA CLEARFIELD 60 60042033 Susq. PA CLINTON 60 60042035 Susq. PA COLUMBIA 40 40042037 Susq. PA COLUMBIA 70 70042037 Susq. PA CUMBERLAND 80 80042041 Susq. PA CUMBERLAND 110 110042041 Susq. PA DAUPHIN 80 80042043 Susq. PA DAUPHIN 110 110042043 Susq. PA ELK 60 60042047 Susq. PA FRANKLIN 80 80042055 Susq. PA FRANKLIN 100 100042055 Susq. PA FULTON 90 90042057 Susq. PA FULTON 100 100042057 Susq. PA HUNTINGDON 90 90042061 Susq. PA HUNTINGDON 100 100042061 Susq. PA INDIANA 50 50042063 Susq. PA JEFFERSON 50 50042065 Susq. PA JUNIATA 80 80042067 Susq. PA JUNIATA 100 100042067 Susq. PA LACKAWANNA 30 30042069 Susq. PA LANCASTER 110 110042071 Susq. PA LANCASTER 120 120042071 Susq. PA LANCASTER 140 140042071 Susq. PA LANCASTER 450 450042071 Susq. PA LANCASTER 710 710042071 Susq. PA LANCASTER 720 720042071 Susq. PA LEBANON 80 80042075 Susq. PA LEBANON 110 110042075 Basin Susq Susq Susq Susq Susq Susq Susq Susq Susq Susq Susq Susq Susq Susq Susq Susq Susq Susq Susq Susq Susq Susq State PA PA PA _ PA Patuxenl MD Patuxenl MD Patuxenl MD Patuxenl MD Patuxenl MD Patuxenl MD Patuxenl MD Patuxenl MD Patuxenl MD Patuxenl MD Patuxenl MD Potomac DC Potomac DC Potomac DC Potomac DC Potomac DC Potomac MD Potomac MD Potomac MD Potomac MD Potomac MD Potomac MD Potomac MD Potomac MD Potomac MD Potomac MD Potomac MD Potomac MD Potomac MD Potomac MD Potomac MD Potomac MD Potomac MD County LEBANON LEBANON LUZERNE LUZERNE LYCOMING LYCOMING LYCOMING MCKEAN MIFFLIN MIFFLIN MONTOUR MONTOUR NORTHUMBERLAND NORTHUMBERLAND NORTHUMBERLAND PERRY PERRY POTTER POTTER SCHUYLKILL SCHUYLKILL SCHUYLKILL SNYDER SNYDER SOMERSET SULLIVAN SULLIVAN SULLIVAN SULLIVAN SUSQUEHANNA SUSQUEHANNA TIOGA TIOGA TIOGA TIOGA UNION UNION WAYNE WAYNE WYOMING WYOMING YORK YORK YORK YORK YORK ANNE ARUNDEL ANNE ARUNDEL CALVERT CHARLES HOWARD HOWARD MONTGOMERY PRINCE GEORGES PRINCE GEORGES ST MARYS ST MARYS DISTRICT OF COLUMBIA DISTRICT OF COLUMBIA DISTRICT OF COLUMBIA DISTRICT OF COLUMBIA DISTRICT OF COLUMBIA ALLEGANY ALLEGANY CARROLL CARROLL CHARLES CHARLES FREDERICK FREDERICK FREDERICK FREDERICK GARRETT MONTGOMERY MONTGOMERY MONTGOMERY MONTGOMERY PRINCE GEORGES PRINCE GEORGES SEG 710 720 30 40 30 700 70 30 70 110 120 140 450 710 340 500 500 500 330 340 330 340 500 500 990 220 540 890 900 910 160 175 210 750 910 920 180 210 220 750 160 210 220 540 890 540 910 COSEG 710042075 720042075 30042079 40042079 30042081 60042081 70042081 60042083 80042087 100042087 40042093 70042093 40042097 70042097 80042097 80042099 100042099 10042105 60042105 40042107 80042107 110042107 80042109 100042109 90042111 30042113 40042113 60042113 70042113 20042115 30042115 10042117 30042117 60042117 700042117 70042119 80042119 20042127 30042127 30042131 70042131 110042133 120042133 140042133 450042133 710042133 340024003 500024003 500024009 500024017 330024027 340024027 330024031 340024033 500024033 500024037 990024037 22001100 54001100 89001100 90001100 91001100 16002400 17502400 210024013 750024013 910024017 920024017 180024021 210024021 220024021 750024021 160024023 210024031 220024031 540024031 890024031 540024033 910024033 Basin State County SEG COSEG Potomac MD PRINCE GEORGES 920 920024033 Potomac MD ST MARYS 920 920024037 Potomac MD WASHINGTON 175 175024043 Potomac MD WASHINGTON 180 180024043 Potomac MD WASHINGTON 730 730024043 Potomac MD WASHINGTON 740 740024043 Potomac PA ADAMS 180 180042001 Potomac PA ADAMS 210 210042001 Potomac PA ADAMS 730 730042001 Potomac PA ADAMS 750 750042001 Potomac PA BEDFORD 160 160042009 Potomac PA BEDFORD 175 175042009 Potomac PA FRANKLIN 180 180042055 Potomac PA FRANKLIN 730 730042055 Potomac PA FRANKLIN 740 740042055 Potomac PA FULTON 175 175042057 Potomac PA FULTON 740 740042057 Potomac PA SOMERSET 160 160042111 Potomac VA ALEXANDRIA CITY 900 900051510 Potomac VA ARLINGTON CITY 220 220051013 Potomac VA ARLINGTON CITY 900 900051013 Potomac VA AUGUSTA 190 190051015 Potomac VA CLARKE 200 200051043 Potomac VA CLARKE 740 740051043 Potomac VA FAIRFAX 220 220051059 Potomac VA FAIRFAX 550 550051059 Potomac VA FAIRFAX 900 900051059 Potomac VA FAIRFAX CITY 900 900051600 Potomac VA FALLS CHURCH CITY 900 900051610 Potomac VA FAUQUIER 220 220051061 Potomac VA FAUQUIER 550 550051061 Potomac VA FAUQUIER 980 980051061 Potomac VA FREDERICK 200 200051069 Potomac VA FREDERICK 740 740051069 Potomac VA HARRISONBURG CITY 190 190051660 Potomac VA HARRISONBURG CITY 200 200051660 Potomac VA HIGHLAND 170 170051091 Potomac VA KING GEORGE 980 980051099 Potomac VA LOUDOUN 180 180051107 Potomac VA LOUDOUN 220 220051107 Potomac VA LOUDOUN 550 550051107 Potomac VA MANASSAS CITY 550 550051683 Potomac VA MANASSAS PARK CITY 550 550051685 Potomac VA NORTHUMBERLAND 980 980051133 Potomac VA PAGE 190 190051139 Potomac VA PAGE 200 200051139 Potomac VA PRINCE WILLIAM 550 550051153 Potomac VA PRINCE WILLIAM 970 970051153 Potomac VA PRINCE WILLIAM 980 980051153 Potomac VA RICHMOND 980 980051159 Potomac VA ROCKINGHAM 190 190051165 Potomac VA ROCKINGHAM 200 200051165 Potomac VA SHENANDOAH 200 200051171 Potomac VA STAFFORD 980 980051179 Potomac VA STAUNTON CITY 190 190051790 Potomac VA WARREN 190 190051187 Potomac VA WARREN 200 200051187 Potomac VA WAYNESBORO CITY 190 190051820 Potomac VA WESTMORELAND 980 980051193 Potomac VA WINCHESTER CITY 740 740051840 Potomac WV BERKELEY 740 740054003 Potomac WV GRANT 160 160054023 Potomac WV GRANT 170 170054023 Potomac WV HAMPSHIRE 160 160054027 Potomac WV HAMPSHIRE 170 170054027 Potomac WV HAMPSHIRE 175 175054027 Potomac WV HARDY 170 170054031 Potomac WV HARDY 175 175054031 Potomac WV HARDY 200 200054031 Potomac WV JEFFERSON 180 180054037 Potomac WV JEFFERSON 200 200054037 Potomac WV JEFFERSON 740 740054037 Potomac WV MINERAL 160 160054057 Potomac WV MORGAN 175 175054065 Potomac WV MORGAN 740 740054065 Potomac WV PENDLETON 170 170054071 Potomac WV PRESTON 160 160054077 Potomac WV TUCKER 160 160054093 24 ------- Table 1. County Segments by Basin, State, County, and Segment Basin State County SEG COSEG Rapp VA ALBEMARLE 230 230051003 Rapp VA CAROLINE 560 560051033 Rapp VA CULPEPER 230 230051047 Rapp VA ESSEX 560 560051057 Rapp VA FAUQUIER 230 230051061 Rapp VA FREDERICKSBURG CITY 230 230051630 Rapp VA FREDERICKSBURG CITY 560 560051630 Rapp VA GREENE 230 230051079 Rapp VA KING GEORGE 560 560051099 Rapp VA LANCASTER 560 560051103 Rapp VA LANCASTER 580 580051103 Rapp VA LANCASTER 930 930051103 Rapp VA MADISON 230 230051113 Rapp VA MIDDLESEX 560 560051119 Rapp VA NORTHUMBERLAND 560 560051133 Rapp VA NORTHUMBERLAND 580 580051133 Rapp VA NORTHUMBERLAND 930 930051133 Rapp VA ORANGE 230 230051137 Rapp VA RAPPAHANNOCK 230 230051157 Rapp VA RICHMOND 560 560051159 Rapp VA RICHMOND 580 580051159 Rapp VA SPOTSYLVANIA 230 230051177 Rapp VA SPOTSYLVANIA 560 560051177 Rapp VA STAFFORD 230 230051179 Rapp VA STAFFORD 560 560051179 Rapp VA WESTMORELAND 560 560051193 York VA ALBEMARLE 260 260051003 York VA CAROLINE 235 235051033 York VA CAROLINE 240 240051033 York VA CAROLINE 260 260051033 York VA CAROLINE 590 590051033 York VA ESSEX 940 940051057 York VA GLOUCESTER 590 590051073 York VA GLOUCESTER 940 940051073 York VA GOOCHLAND 260 260051075 York VA HANOVER 260 260051085 York VA HANOVER 590 590051085 York VA JAMES CITY 590 590051095 York VA KING AND QUEEN 240 240051097 York VA KING AND QUEEN 590 590051097 York VA KING AND QUEEN 940 940051097 York VA KING WILLIAM 240 240051101 York VA KING WILLIAM 590 590051101 York VA LOUISA 250 250051109 York VA LOUISA 260 260051109 York VA MATHEWS 940 940051115 York VA MIDDLESEX 940 940051119 York VA NEW KENT 590 590051127 York VA ORANGE 235 235051137 York VA ORANGE 250 250051137 York VA ORANGE 260 260051137 York VA POQUOSON CITY 950 950051735 York VA SPOTSYLVANIA 235 235051177 York VA SPOTSYLVANIA 240 240051177 York VA SPOTSYLVANIA 250 250051177 York VA SPOTSYLVANIA 260 260051177 York VA WILLIAMSBURG CITY 590 590051830 York VA YORK 590 590051199 York VA YORK 950 950051199 James VA ALBEMARLE 280 280051003 James VA ALLEGHANY 265 265051005 James VA ALLEGHANY 270 270051005 James VA AMELIA 300 300051007 James VA AMELIA 310 310051007 James VA AMHERST 270 270051009 James VA AMHERST 280 280051009 James VA APPOMATTOX 280 280051011 James VA APPOMATTOX 300 300051011 James VA AUGUSTA 270 270051015 James VA BATH 265 265051017 James VA BATH 270 270051017 James VA BEDFORD 270 270051019 James VA BEDFORD 280 280051019 James VA BOTETOURT 270 270051023 James VA BUCKINGHAM 280 280051029 James VA BUCKINGHAM 300 300051029 James VA BUENA VISTA CITY 270 270051530 James VA CAMPBELL 280 280051031 James VA CHARLES CITY 600 600051036 Basin State County SEG COSEG James VA CHARLES CITY 610 610051036 James VA CHARLOTTESVILLE CITY 280 280051540 James VA CHESAPEAKE CITY 630 630051550 James VA CHESAPEAKE CITY 960 960051550 James VA CHESTERFIELD 290 290051041 James VA CHESTERFIELD 300 300051041 James VA CHESTERFIELD 310 310051041 James VA CHESTERFIELD 600 600051041 James VA CLIFTON FORGE CITY 270 270051560 James VA COLONIAL HEIGHTS CITY 600 600051570 James VA COVINGTON CITY 270 270051580 James VA CRAIG 270 270051045 James VA CUMBERLAND 280 280051049 James VA CUMBERLAND 290 290051049 James VA CUMBERLAND 300 300051049 James VA DINWIDDIE 310 310051053 James VA DINWIDDIE 600 600051053 James VA FLUVANNA 280 280051065 James VA GILES 270 270051071 James VA GOOCHLAND 280 280051075 James VA GOOCHLAND 290 290051075 James VA GREENE 280 280051079 James VA HAMPTON CITY 600 600051650 James VA HAMPTON CITY 955 955051650 James VA HAMPTON CITY 960 960051650 James VA HANOVER 610 610051085 James VA HENRICO 290 290051087 James VA HENRICO 600 600051087 James VA HENRICO 610 610051087 James VA HIGHLAND 265 265051091 James VA HIGHLAND 270 270051091 James VA HOPEWELL CITY 600 600051670 James VA ISLE OF WIGHT 600 600051093 James VA ISLE OF WIGHT 620 620051093 James VA JAMES CITY 600 600051095 James VA LEXINGTON CITY 270 270051678 James VA LOUISA 280 280051109 James VA LYNCHBURG CITY 280 280051680 James VA MONTGOMERY 270 270051121 James VA NELSON 280 280051125 James VA NEW KENT 600 600051127 James VA NEW KENT 610 610051127 James VA NEWPORT NEWS CITY 600 600051700 James VA NEWPORT NEWS CITY 955 955051700 James VA NORFOLK CITY 960 960051710 James VA NORFOLK CITY 965 965051710 James VA NORTHAMPTON 960 960051131 James VA NOTTOWAY 300 300051135 James VA NOTTOWAY 310 310051135 James VA ORANGE 280 280051137 James VA PETERSBURG CITY 600 600051730 James VA POQUOSON CITY 955 955051735 James VA PORTSMOUTH CITY 620 620051740 James VA PORTSMOUTH CITY 630 630051740 James VA PORTSMOUTH CITY 960 960051740 James VA POWHATAN 290 290051145 James VA POWHATAN 300 300051145 James VA POWHATAN 600 600051145 James VA PRINCE EDWARD 300 300051147 James VA PRINCE GEORGE 600 600051149 James VA RICHMOND CITY 290 290051760 James VA RICHMOND CITY 600 600051760 James VA ROANOKE 270 270051161 James VA ROCKBRIDGE 270 270051163 James VA SUFFOLK 600 600051800 James VA SUFFOLK 620 620051800 James VA SURRY 600 600051181 James VA VIRGINIA BEACH 960 960051810 James VA VIRGINIA BEACH 965 965051810 James VA WILLIAMSBURG CITY 600 600051830 James VA YORK 600 600051199 James VA YORK 955 955051199 James WV MONROE 270 270054063 James WV PENDLETON 270 270054071 West Shore MD ANNE ARUNDEL 490 490024003 West Shore MD ANNE ARUNDEL 510 510024003 West Shore MD ANNE ARUNDEL 870 870024003 West Shore MD ANNE ARUNDEL 880 880024003 West Shore MD BALTIMORE 470 470024005 Basin State County SEG COSEG West Shore MD BALTIMORE 480 480024005 West Shore MD BALTIMORE 490 490024005 West Shore MD BALTIMORE 650 650024005 West Shore MD BALTIMORE 760 760024005 West Shore MD BALTIMORE 860 860024005 West Shore MD BALTIMORE CITY 480 480024510 West Shore MD BALTIMORE CITY 490 490024510 West Shore MD BALTIMORE CITY 860 860024510 West Shore MD CALVERT 880 880024009 West Shore MD CARROLL 470 470024013 West Shore MD CARROLL 650 650024013 West Shore MD CARROLL 760 760024013 West Shore MD HARFORD 470 470024025 West Shore MD HARFORD 850 850024025 West Shore MD HOWARD 490 490024027 West Shore MD HOWARD 760 760024027 West Shore PA YORK 470 470042133 East Shore DE KENT 380 380010001 East Shore DE KENT 400 400010001 East Shore DE KENT 410 410010001 East Shore DE KENT 770 770010001 East Shore DE KENT 780 780010001 East Shore DE NEW CASTLE 370 370010003 East Shore DE NEW CASTLE 380 380010003 East Shore DE NEW CASTLE 800 800010003 East Shore DE NEW CASTLE 810 810010003 East Shore DE SUSSEX 410 410010005 East Shore DE SUSSEX 420 420010005 East Shore DE SUSSEX 430 430010005 East Shore DE SUSSEX 780 780010005 East Shore MD CAROLINE 380 380024011 East Shore MD CAROLINE 400 400024011 East Shore MD CAROLINE 410 410024011 East Shore MD CAROLINE 770 770024011 East Shore MD CECIL 370 370024015 East Shore MD CECIL 800 800024015 East Shore MD CECIL 810 810024015 East Shore MD DORCHESTER 400 400024019 East Shore MD DORCHESTER 410 410024019 East Shore MD DORCHESTER 840 840024019 East Shore MD KENT 380 380024029 East Shore MD KENT 810 810024029 East Shore MD QUEEN ANNES 380 380024035 East Shore MD QUEEN ANNES 390 390024035 East Shore MD QUEEN ANNES 400 400024035 East Shore MD QUEEN ANNES 770 770024035 East Shore MD QUEEN ANNES 820 820024035 East Shore MD SOMERSET 420 420024039 East Shore MD SOMERSET 430 430024039 East Shore MD SOMERSET 840 840024039 East Shore MD TALBOT 390 390024041 East Shore MD TALBOT 400 400024041 East Shore MD TALBOT 830 830024041 East Shore MD WICOMICO 410 410024045 East Shore MD WICOMICO 420 420024045 East Shore MD WICOMICO 430 430024045 East Shore MD WORCESTER 420 420024047 East Shore MD WORCESTER 430 430024047 East Shore PA CHESTER 800 800042029 East Shore VA ACCOMACK 430 430051001 East Shore VA ACCOMACK 440 440051001 East Shore VA NORTHAMPTON 440 440051131 ------- Section 2. Chesapeake Bay Program Land Use The Chesapeake Bay Program Land Use (CBPLU) database is a combination of the EPA Environmental Monitoring and Assessment Program (EMAP)1, NOAA Coastal Change Assessment Program (C-CAP)2, and USGS Geographic Information Retrieval and Analysis System (GIRAS)3 land use databases. The 1990 EMAP database is the primary source of land use data. EMAP Level 2 data is delivered in raster (grid) format with each raster (grid-cell) being approximately 660 square meters (0.165 acres). EMAP employs two levels of detail in classification of land use and the more detailed level was chosen for the CBPLU. The documentation for the EMAP Chesapeake Bay watershed study showed that using the aggregation scheme detailed below, overall thematic accuracy for the data set was eighty percent and non-transition site (pixels not located on a land use border) accuracy was ninety percent. Original EMAP Land Use Final Database Category Level 2 Classification Scheme 11 High Intensity Developed 11 High Intensity Developed 12 Low Intensity Developed 12 Low Intensity Developed 21 Woody Cultivated 30 Woody 22 Herbaceous Cultivated 20 Herbaceous 31 Herbaceous 20 Herbaceous 41 Deciduous Forest 30 Woody 42 Evergreen Forest 30 Woody 43 Mixed Forest 40 Woody 52 Exposed Sand 40 Exposed 53 Exposed Rock 40 Exposed 71 Deciduous Wetland 30 Woody 72 Evergreen Wetland 30 Woody 73 Mixed Forest Wetland 30 Woody 81 Herbaceous Wetland 20 Herbaceous 91 Non-vegetated Wetland 40 Exposed 100 Water 60 Water The original EMAP cover has data gaps within the Chesapeake Bay and at the watershed boundary. GIRAS data is used, where possible, to fill these small data gaps around the basin edge and within the watershed. The GIRAS data are reclassified to EMAP land use categories, converted to grid data, and merged with the EMAP data. In some places, 1 Chesapeake Bay Watershed Pilot Project. EMAP Center, Research Triangle Park, NC 27711 Publication Code: EPA/620/R-94/XXX, March 1994 2 Documentation for C-CAP is available from Dr. Kent Hughes, NOAA/NESDID/NODC, 1825 Connecticut Ave., NW, Washington, D.C. 20235 3 Anderson, et. al. A Land Use and Land Cover Classification System for Use with Remote Sensor Data 1976 26 ------- GIRAS data are unavailable. A GRID: NIBBLE edge expansion algorithm is performed on the EMAP-GIRAS data to fill these data gaps. The GRID: NIBBLE function incrementally fills in raster cells with missing data based upon the value of the nearest neighboring raster, with proximity determined by least Euclidean distance. To ensure the accuracy of land use assignments between herbaceous agricultural cover and emergent coastal wetlands NOAA Coastal Change Assessment Program (C-CAP) data are used. C-CAP herbaceous emergent wetland types are selected out of the 1989- 1990 grid and then merged with the EMAP/GIRAS. The CBPLU grid is classified as wetland wherever the C-CAP data indicates wetland land. To further enhance the accuracy of the final CBPLU, urban land use categories in GIRAS are selected out, converted to a grid, and merged with the EMAP/GIRAS/C-CAP grid. Herbaceous and woody areas in EMAP that are classified as urban categories in GIRAS were selected out and classified as Herbaceous Urban and Woody Urban, respectively. This enhancement was performed to capture rural residential areas where natural covers dominated the landscape, resulting in them often being misclassified as an undeveloped land cover when they are more accurately classified as pervious urban. To avoid double counting, GIRAS class 14, which is transportation and communication utilities, was not used because EMAP captures transportation networks in its Low Intensity Urban category. The combination of EMAP, C-CAP, and GIRAS data resulted in the following CBPLU classification scheme: EMAP High Intensity Urban EMAP Low Intensity Urban GIRAS Urban + EMAP Herbaceous GIRAS Urban + EMAP Woody EMAP Herbaceous EMAP Woody EMAP Exposed EMAP Water C-CAP Emergent Herb. Wetlands CBPLU High Intensity Urban CBPLU Low Intensity Urban CBPLU Herbaceous Urban CBPLU Woody Urban CBPLU Herbaceous CBPLU Woody CBPLU Exposed CBPLU Water CBPLU Herbaceous Wetlands In Phase 4.2 of the Chesapeake Bay Watershed Model, refinements were made to the model segments and watershed boundary covers. Improved data from the states, USGS, and NOAA resulted in high-resolution shoreline and watershed covers. These refinements greatly improved the accuracy of watershed and sub-watershed delineation; however, they resulted in data gaps in the land use cover. Another GRID: NIBBLE edge expansion algorithm is performed on the CBPLU data to fill data gaps where the CBPLU basin boundary does not agree with the CBP watershed model basin boundary. Figure 9 shows the final Chesapeake Bay Program Land Use (CBPLU) cover. Table 2 represents the percent of total land use area by county-segment, from the original EMAP cover to the current high-resolution basin boundary, that contained unassigned land use data. Table 3 lists the final Chesapeake Bay Program Land Use data by county-segment. 27 ------- Chesapeake Bay Program Land Use Location of the Chesapeake Bay Watershed in the Mid-Atlantic States High Intensity Urban Low Intensity, Herbaceous, and Woody Urban Woody and Wetland Herbaceous Water Figure 9 Chesapeake Bay Program ------- Table 2. Percent Area with Unassigned EMAP Data by County-Segment Nibbled Total Coseg Percent Coseg County Name SEG Basin State Acres Acres Nibbled 720042029 CHESTER 720 Susq. PA 1313.04 1313.04 100.00% 90042021 CAMBRIA 90 Susq. PA 68.42 68.42 100.00% 50042065 JEFFERSON 50 Susq. PA 860.72 867.63 99.20% 120042029 CHESTER 120 Susq. PA 4726.98 5019.59 94.17% 160054077 PRESTON 160 Potomac WV 576.01 1033.43 55.74% 720042011 BERKS 720 Susq. PA 10074.87 18661.53 53.99% 10036123 YATES 10 Susq. NY 3274.46 6505.50 50.33% 10036069 ONTARIO 10 Susq. NY 338.17 716.14 47.22% 600051053 DINWIDDIE 600 James VA 3158.01 7096.15 44.50% 20036067 ONONDAGA 20 Susq. NY 15173.41 35569.87 42.66% 280051019 BEDFORD 280 James VA 12567.56 29843.02 42.11% 160054093 TUCKER 160 Potomac WV 219.09 562.03 38.98% 270051071 GILES 270 James VA 2855.20 7568.53 37.72% 60042083 MCKEAN 60 Susq. PA 5060.87 15587.90 32.47% 270051019 BEDFORD 270 James VA 12339.59 38677.06 31.90% 90042013 BLAIR 90 Susq. PA 2465.71 7836.14 31.47% 10036051 LIVINGSTON 10 Susq. NY 3165.41 10103.66 31.33% 270054063 MONROE 270 James WV 14489.34 49765.13 29.12% 160024023 GARRETT 160 Potomac MD 42909.78 153100.28 28.03% 600051730 PETERSBURG CITY 600 James VA 2577.23 9724.04 26.50% 50042063 INDIANA 50 Susq. PA 9863.19 40325.15 24.46% 960051550 CHESAPEAKE CITY 960 James VA 10561.73 44681.22 23.64% 270051161 ROANOKE 270 James VA 3882.21 16755.05 23.17% 600051149 PRINCE GEORGE 600 James VA 17770.71 77795.58 22.84% 20036097 SCHUYLER 20 Susq. NY 5603.99 25539.25 21.94% 160042111 SOMERSET 160 Potomac PA 16353.72 77359.22 21.14% 620051800 SUFFOLK 620 James VA 19343.79 95686.53 20.22% 20036095 SCHOHARIE 20 Susq. NY 5283.42 26243.88 20.13% 30042127 WAYNE 30 Susq. PA 3572.00 18025.65 19.82% 280051031 CAMPBELL 280 James VA 8819.23 44530.89 19.80% 265051005 ALLEGHANY 265 James VA 1456.80 7649.13 19.05% 450042029 CHESTER 450 Susq. PA 7672.98 44461.97 17.26% 270051121 MONTGOMERY 270 James VA 2480.85 14434.57 17.19% 600051181 SURRY 600 James VA 11931.85 70418.83 16.94% 630051550 CHESAPEAKE CITY 630 James VA 1945.79 11919.84 16.32% 20036065 ONEIDA 20 Susq. NY 4570.89 30713.28 14.88% 20036043 HERKIMER 20 Susq. NY 7171.97 50771.91 14.13% 20042127 WAYNE 20 Susq. PA 2708.49 20212.90 13.40% 265051091 HIGHLAND 265 James VA 12201.10 94003.08 12.98% 265051017 BATH 265 James VA 17009.33 133226.54 12.77% 10036003 ALLEGANY 10 Susq. NY 6447.77 53041.72 12.16% 965051810 VIRGINIA BEACH 965 James VA 4760.37 47815.38 9.96% 170051091 HIGHLAND 170 Potomac VA 5595.76 63312.33 8.84% 20036109 TOMPKINS 20 Susq. NY 5093.28 59932.76 8.50% 300051135 NOTTOWAY 300 James VA 8378.92 99660.52 8.41% 800042029 CHESTER 800 E. Shore MD PA 3247.98 40485.51 8.02% 280051680 LYNCHBURG CITY 280 James VA 2389.89 31893.10 7.49% 310051053 DINWIDDIE 310 James VA 3192.55 43500.92 7.34% 10036097 SCHUYLER 10 Susq. NY 3792.08 52264.23 7.26% 430024047 WORCESTER 430 E. Shore MD MD 13239.62 183681.66 7.21% 300051147 PRINCE EDWARD 300 James VA 14789.68 216862.96 6.82% 20036053 MADISON 20 Susq. NY 13765.63 205656.14 6.69% 80042107 SCHUYLKILL 80 Susq. PA 7712.29 115388.56 6.68% 40042107 SCHUYLKILL 40 Susq. PA 3442.89 53333.02 6.46% 60042105 POTTER 60 Susq. PA 24827.71 404388.17 6.14% 620051093 ISLE OF WIGHT 620 James VA 2043.82 34624.77 5.90% 770010001 KENT 770 E. Shore MD DE 2419.17 50422.88 4.80% 270051005 ALLEGHANY 270 James VA 12809.35 279420.65 4.58% 110042011 BERKS 110 Susq. PA 1626.70 38190.36 4.26% 310051135 NOTTOWAY 310 James VA 297.71 7006.17 4.25% 170054071 PENDLETON 170 Potomac WV 17599.32 446458.78 3.94% 29 ------- Table 2. Percent Area with Unassigned EMAP Data by County-Segment Coseg County Name SEG Basin State Nibbled Acres Total Coseg Acres Percent Nibbled 10036015 CHEMUNG 10 Susq. NY 7978.09 205293.46 3.89% 720042075 LEBANON 720 Susq. PA 532.59 14024.52 3.80% 160054023 GRANT 160 Potomac WV 5341.31 155385.40 3.44% 20036025 DELAWARE 20 Susq. NY 5954.00 187071.75 3.18% 270051023 BOTETOURT 270 James VA 9639.66 306378.21 3.15% 170054023 GRANT 170 Potomac WV 4278.12 152719.35 2.80% 30042079 LUZERNE 30 Susq. PA 2482.82 99467.58 2.50% 40042079 LUZERNE 40 Susq. PA 8759.36 395579.79 2.21% 30042069 LACKAWANNA 30 Susq. PA 5498.55 252004.69 2.18% 50042021 CAMBRIA 50 Susq. PA 3475.29 186631.10 1.86% 60042047 ELK 60 Susq. PA 2867.21 173669.62 1.65% 10036101 STEUBEN 10 Susq. NY 11185.93 784017.55 1.43% 90042009 BEDFORD 90 Susq. PA 6265.85 446139.85 1.40% 410010005 SUSSEX 410 E. Shore MD DE 3233.34 232177.82 1.39% 380010003 NEW CASTLE 380 E. Shore MD DE 103.95 7509.98 1.38% 20036023 CORTLAND 20 Susq. NY 3768.72 280808.20 1.34% 110042075 LEBANON 110 Susq. PA 2146.95 168309.88 1.28% 430051001 ACCOMACK 430 E. Shore MD VA 223.03 19186.71 1.16% 50042033 CLEARFIELD 50 Susq. PA 5762.38 552028.72 1.04% 720042071 LANCASTER 720 Susq. PA 2815.73 270210.12 1.04% 370010003 NEW CASTLE 370 E. Shore MD DE 66.78 7023.77 0.95% 90042111 SOMERSET 90 Susq. PA 163.99 17362.31 0.94% 120042071 LANCASTER 120 Susq. PA 911.22 104912.19 0.87% 160024001 ALLEGANY 160 Potomac MD 1235.08 168921.09 0.73% 300051011 APPOMATTOX 300 James VA 422.22 61320.81 0.69% Total Area of the Chesapeake Bay Watershed 561002.56 9119868.61 1.39% 30 ------- Table 3. 1990 Chesapeake Bay Program Land Use in Acres by Phase 4.2 Watershed Model County Segments High Low Intensity Intensity Herbaceous COSEG 10036003 SEG 10 FIPS 36003 State NY County ALLEGANY Developed 1 Developed 2672 Urban 291 10036015 10 36015 NY CHEMUNG 1463 14292 7343 10036051 10 36051 NY LIVINGSTON 0 0 0 10036069 10 36069 NY ONTARIO 0 0 0 10036097 10 36097 NY SCHUYLER 0 1748 188 10036101 10 36101 NY STEUBEN 804 35969 4114 10036123 10 36123 NY YATES 0 13 39 10042015 10 42015 PA BRADFORD 83 2040 928 10042105 10 42105 PA POTTER 0 273 39 10042117 10 42117 PA TIOGA 84 10135 1744 20036007 20 36007 NY BROOME 3635 36392 9692 20036015 20 36015 NY CHEMUNG 4 562 103 20036017 20 36017 NY CHENANGO 136 10399 4525 20036023 20 36023 NY CORTLAND 7 4610 4098 20036025 20 36025 NY DELAWARE 135 4042 697 20036043 20 36043 NY HERKIMER 21 1543 310 20036053 20 36053 NY MADISON 0 803 1860 20036065 20 36065 NY ONEIDA 35 271 118 20036067 20 36067 NY ONONDAGA 0 86 515 20036077 20 36077 NY OTSEGO 27 10775 4601 20036095 20 36095 NY SCHOHARIE 0 184 53 20036097 20 36097 NY SCHUYLER 33 475 102 20036107 20 36107 NY TIOGA 400 12230 6230 20036109 20 36109 NY TOMPKINS 3 566 207 20042015 20 42015 PA BRADFORD 147 2284 123 20042115 20042127 20 20 42115 42127 PA PA SUSQUEHANNA WAYNE 61 0 5511 45 401 1 30042015 30 42015 PA BRADFORD 56 5126 734 30042069 30 42069 PA LACKAWANNA 8355 24232 6298 30042079 30 42079 PA LUZERNE 6040 12036 1901 30042081 30 42081 PA LYCOMING 0 0 0 30042113 30 42113 PA SULLIVAN 17 152 28 30042115 30042117 30 30 42115 42117 PA PA SUSQUEHANNA TIOGA 0 0 3113 70 862 0 30042127 30 42127 PA WAYNE 0 214 76 30042131 30 42131 PA WYOMING 18 4417 8156 40042037 40 42037 PA COLUMBIA 791 8020 2435 40042079 40 42079 PA LUZERNE 6688 20320 3683 40042093 40 42093 PA MONTOUR 106 1868 974 40042097 40 42097 PA NORTHUMBERLAND 897 7251 1658 40042107 40 42107 PA SCHUYLKILL 9 1124 399 40042113 40 42113 PA SULLIVAN 0 22 0 50042021 50 42021 PA CAMBRIA 3 3941 944 50042027 50 42027 PA CENTRE 20 1527 87 50042033 50 42033 PA CLEARFIELD 428 9489 1124 50042063 50 42063 PA INDIANA 0 171 91 50042065 50 42065 PA JEFFERSON 0 0 0 60042023 60 42023 PA CAMERON 30 1409 493 60042027 60 42027 PA CENTRE 100 11735 3438 60042033 60 42033 PA CLEARFIELD 0 535 49 60042035 60 42035 PA CLINTON 351 8006 1226 60042047 60 42047 PA ELK 0 793 263 60042081 60 42081 PA LYCOMING 395 8386 1490 60042083 60 42083 PA MCKEAN 0 48 0 60042105 60 42105 PA POTTER 9 959 433 60042113 60 42113 PA SULLIVAN 0 11 0 60042117 60 42117 PA TIOGA 46 3067 117 70042015 70 42015 PA BRADFORD 0 20 0 70042027 70 42027 PA CENTRE 0 47 0 70042037 70 42037 PA COLUMBIA 0 96 22 70042081 70 42081 PA LYCOMING 274 7936 2705 70042093 70 42093 PA MONTOUR 122 927 171 70042097 70 42097 PA NORTHUMBERLAND 291 4341 981 70042113 70 42113 PA SULLIVAN 18 1772 253 70042119 70 42119 PA UNION 34 4297 973 70042131 70 42131 PA WYOMING 0 0 0 80042027 80 42027 PA CENTRE 4 677 651 80042041 80 42041 PA CUMBERLAND 2718 19392 2997 80042043 80 42043 PA DAUPHIN 1698 9795 2747 80042055 80 42055 PA FRANKLIN 281 2592 1046 80042067 80 42067 PA JUNIATA 0 57 26 80042075 80 42075 PA LEBANON 0 0 0 80042087 80 42087 PA MIFFLIN 0 0 0 80042097 80 42097 PA NORTHUMBERLAND 1 455 180 80042099 80 42099 PA PERRY 32 3360 1099 80042107 80 42107 PA SCHUYLKILL 375 3738 909 Herbaceous Total baceous Woody Exposed Water Wetland Acreage 12596 37090 12 5 0 52964 75404 104028 128 1587 0 205251 5477 4603 0 0 0 10080 276 440 0 0 0 716 11618 36542 0 1976 0 52246 244707 491685 87 3381 0 783867 3365 3038 0 28 0 6484 52113 55289 101 931 0 111605 11598 18259 0 103 0 30304 131960 267995 302 3120 0 416054 145556 199742 338 5802 0 405711 11521 22633 0 23 0 34883 184138 369580 51 3433 0 573511 100324 169057 12 1608 0 280712 61177 119842 0 864 0 187066 28146 22843 0 254 0 53303 71496 129261 0 1672 0 205575 10565 19716 0 116 0 30841 13107 21140 0 423 0 35494 235309 369748 0 8823 0 631324 7980 17877 18 125 0 26244 6002 18517 6 360 0 25504 143175 167122 355 2781 0 333528 12704 46192 5 122 0 59859 29386 30608 0 618 0 63212 53985 127950 65 3150 0 191519 5484 14318 0 338 0 20211 170719 224041 257 5328 0 406521 41868 142687 4366 3561 0 251991 9215 63076 1617 1823 0 99470 149 973 0 0 0 1123 4352 13711 4 101 0 18373 146417 185108 160 4517 0 340862 2001 3168 0 0 0 5239 2502 14698 89 373 0 18014 61130 166107 230 4990 0 255620 126050 157576 1257 2304 0 300162 75742 266977 9590 5737 0 395587 14492 9751 8 546 0 30714 50405 69157 5861 3171 0 139715 9787 39091 1631 237 0 53336 1265 28015 0 150 0 29453 32123 143093 3108 1962 0 186589 3580 105802 3142 570 0 115364 37771 463653 32474 3859 0 551987 8366 28188 3260 26 0 40250 0 8 854 0 0 862 12629 237385 276 1682 0 254514 86170 282827 3678 3061 0 392625 4443 110356 2063 271 0 117886 68322 485993 3929 6239 0 575166 13258 156915 1510 587 0 173557 78302 391053 306 4633 0 485382 352 15131 0 4 0 15542 30848 371012 14 443 0 404291 744 2808 0 48 0 3611 63550 235195 610 944 0 303883 2592 6088 0 90 0 8790 199 9036 0 0 0 9282 7583 5394 0 0 0 13095 91570 203041 42 3377 0 309789 39636 12612 188 259 0 53929 43777 17102 19 2607 0 69380 43289 190626 323 1398 0 238036 58071 83512 25 434 0 147817 414 3114 0 11 0 3539 51831 92596 0 205 0 146028 134521 76805 203 1938 0 239556 71421 132380 205 14074 0 233555 38211 41866 0 138 0 87006 9488 10253 0 4 0 19828 17 9595 0 0 0 9612 97 10180 0 26 0 10302 47096 42110 69 6376 0 96349 79565 157893 205 1708 0 244368 31882 67763 9738 157 0 115386 Woody Urban 298 1007 0 0 173 3120 1 121 33 714 4554 38 1249 997 309 187 483 20 223 2041 7 10 1236 61 46 396 25 260 20625 3763 0 8 685 0 61 10571 1727 6852 2970 1314 1058 0 1415 636 3189 146 0 611 1616 170 1100 231 817 7 574 0 353 0 0 0 844 14 262 356 472 0 65 981 1234 2872 0 0 0 61 505 824 ------- Table 3. 1990 Chesapeake Bay Program Land Use in Acres by Phase 4.2 Watershed Model County Segments COSEG SEG FIPS State County Developed Developed Urban Urban Herbaceous Woody Exposed Water Wetland Acreage 10036003 10 36003 NY ALLEGANY 1 2672 291 298 12596 37090 12 5 0 52964 10036015 10 36015 NY CHEMUNG 1463 14292 7343 1007 75404 104028 128 1587 0 205251 10036051 10 36051 NY LIVINGSTON 0 0 0 0 5477 4603 0 0 0 10080 10036069 10 36069 NY ONTARIO 0 0 0 0 276 440 0 0 0 716 10036097 10 36097 NY SCHUYLER 0 1748 188 173 11618 36542 0 1976 0 52246 10036101 10 36101 NY STEUBEN 804 35969 4114 3120 244707 491685 87 3381 0 783867 10036123 10 36123 NY YATES 0 13 39 1 3365 3038 0 28 0 6484 10042015 10 42015 PA BRADFORD 83 2040 928 121 52113 55289 101 931 0 111605 10042105 10 42105 PA POTTER 0 273 39 33 11598 18259 0 103 0 30304 80042109 80 42109 PA SNYDER 125 2562 1970 275 101838 96836 0 1572 0 205178 80042119 80 42119 PA UNION 0 28 320 37 19045 35527 0 498 0 55455 90042009 90 42009 PA BEDFORD 56 4887 3140 1247 138565 295035 842 2317 0 446088 90042013 90 42013 PA BLAIR 0 18 45 0 4311 3449 0 0 0 7823 90042021 90 42021 PA CAMBRIA 0 0 0 0 66 0 0 0 0 66 90042057 90 42057 PA FULTON 0 240 0 0 4021 18659 0 0 0 22920 90042061 90 42061 PA HUNTINGDON 0 209 183 121 17259 86493 90 8506 0 112860 90042111 90 42111 PA SOMERSET 0 277 18 24 1971 15030 6 0 0 17327 1E+08 100 42009 PA BEDFORD 0 100 171 177 5584 8948 0 5 0 14986 1E+08 100 42013 PA BLAIR 132 16684 4976 4261 73446 229943 848 1026 0 331316 1E+08 100 42027 PA CENTRE 0 64 74 51 14934 32833 0 11 0 47967 1E+08 100 42055 PA FRANKLIN 0 99 11 7 5714 11166 0 0 0 16997 1E+08 100 42057 PA FULTON 0 629 201 164 12457 57156 161 133 0 70899 1E+08 100 42061 PA HUNTINGDON 27 3374 1186 871 100836 349044 420 1621 0 457378 1E+08 100 42067 PA JUNIATA 3 1182 941 118 84965 142947 69 1680 0 231905 1E+08 100 42087 PA MIFFLIN 204 3544 3595 1386 91585 151634 201 2288 0 254437 1E+08 100 42099 PA PERRY 0 394 389 49 37086 72787 5 618 0 111327 1E+08 100 42109 PA SNYDER 0 5 13 0 1609 5956 0 0 0 7583 1.1E+08 110 24013 MD CARROLL 0 8 15 0 2125 1327 0 0 0 3476 1.1E+08 110 42001 PA ADAMS 124 3170 1664 177 111284 55512 183 1023 0 173138 1.1E+08 110 42011 PA BERKS 40 908 293 8 24137 12798 0 5 0 38188 1.1E+08 110 42041 PA CUMBERLAND 1107 9164 1559 474 41030 59344 249 309 0 113236 1.1E+08 110 42043 PA DAUPHIN 3166 19947 5133 1569 57711 28906 89 6712 0 123232 1.1E+08 110 42071 PA LANCASTER 380 3165 533 285 19076 8368 84 3726 0 35618 1.1E+08 110 42075 PA LEBANON 1357 13118 4922 555 99166 47364 802 1027 0 168311 1.1E+08 110 42107 PA SCHUYLKILL 30 2382 801 604 24782 57002 1758 164 0 87524 1.1E+08 110 42133 PA YORK 2409 27651 8261 2543 211104 128596 412 4707 0 385683 1.2E+08 120 42029 PA CHESTER 0 0 0 0 2183 2833 0 0 0 5016 1.2E+08 120 42071 PA LANCASTER 338 4367 797 324 66565 29672 62 2787 0 104911 1.2E+08 120 42133 PA YORK 0 66 79 5 10241 10778 0 78 0 21247 1.4E+08 140 24015 MD CECIL 0 31 0 0 1232 3260 0 1426 299 6249 1.4E+08 140 24025 MD HARFORD 2 345 156 199 16587 15532 9 1704 167 34700 1.4E+08 140 42071 PA LANCASTER 65 513 129 52 32235 13381 88 6694 42 53199 1.4E+08 140 42133 PA YORK 55 637 221 108 58550 36208 12 480 0 96271 1.6E+08 160 24001 MD ALLEGANY 163 14088 2749 3511 23183 122246 2066 920 0 168927 1.6E+08 160 24023 MD GARRETT 52 1394 24 216 22522 125468 2375 896 0 152948 1.6E+08 160 42009 PA BEDFORD 0 679 148 60 15131 69503 0 415 0 85935 1.6E+08 160 42111 PA SOMERSET 0 395 41 58 14786 62012 0 5 0 77297 1.6E+08 160 54023 WV GRANT 0 1696 101 179 43334 105182 3484 1371 0 155346 1.6E+08 160 54027 WV HAMPSHIRE 88 256 28 10 3634 7841 35 30 0 11922 1.6E+08 160 54057 WV MINERAL 66 6391 998 749 37708 163107 956 1107 0 211082 1.6E+08 160 54077 WV PRESTON 0 0 0 0 108 716 203 0 0 1027 1.6E+08 160 54093 WV TUCKER 0 0 0 0 24 490 43 0 0 557 1.7E+08 170 51091 VA HIGHLAND 0 290 124 25 23145 39692 0 0 0 63276 1.7E+08 170 54023 WV GRANT 0 3147 632 239 46116 102057 13 487 0 152691 1.7E+08 170 54027 WV HAMPSHIRE 0 1870 180 129 23864 88765 300 1755 0 116863 1.7E+08 170 54031 WV HARDY 17 2511 250 98 48436 115183 52 142 0 166689 1.7E+08 170 54071 WV PENDLETON 56 3564 1052 221 109228 331487 190 568 0 446365 1.75E+08 175 24001 MD ALLEGANY 0 918 18 20 14324 90159 20 1040 0 106500 1.75E+08 175 24043 MD WASHINGTON 0 632 201 193 3406 22893 0 557 0 27881 1.75E+08 175 42009 PA BEDFORD 0 0 0 0 18625 85183 0 0 0 103808 1.75E+08 175 42057 PA FULTON 0 37 0 0 3351 12454 0 0 0 15842 1.75E+08 175 54027 WV HAMPSHIRE 0 2848 382 272 61936 217522 32 1458 0 284449 1.75E+08 175 54031 WV HARDY 6 1526 312 367 39351 157254 23 144 0 198983 1.75E+08 175 54065 WV MORGAN 0 2108 434 317 6667 56232 140 1019 0 66917 1.8E+08 180 24021 MD FREDERICK 128 2726 424 129 52435 34182 38 1133 12 91207 1.8E+08 180 24043 MD WASHINGTON 1057 12296 1290 395 71497 48183 537 1453 40 136748 1.8E+08 180 42001 PA ADAMS 0 21 0 0 172 4548 0 32 0 4773 1.8E+08 180 42055 PA FRANKLIN 263 4959 861 280 34606 22460 9 12 1 63450 1.8E+08 180 51107 VA LOUDOUN 0 258 409 81 48151 31942 0 146 7 80994 1.8E+08 180 54037 WV JEFFERSON 5 513 682 138 22103 6179 0 113 5 29738 1.9E+08 190 51015 VA AUGUSTA 481 10701 15126 3566 221898 205759 22 472 0 458025 1.9E+08 190 51139 VA PAGE 78 2065 12313 2318 61293 115344 144 1720 0 195275 1.9E+08 190 51165 VA ROCKINGHAM 484 8991 15960 1959 119515 159890 115 1845 0 308760 1.9E+08 190 51187 VA WARREN 9 330 2307 819 13425 35951 13 708 0 53561 1.9E+08 190 51660 VA HARRISONBURG CITY 1370 2934 1194 131 3133 807 0 5 0 9574 1.9E+08 190 51790 VA STAUNTON CITY 277 3473 1942 817 4536 1627 0 4 0 12676 1.9E+08 190 51820 VA WAYNESBORO CITY 499 3616 1016 255 2487 1111 16 18 0 9018 2E+08 200 51043 VA CLARKE 9 1157 492 41 51692 36917 8 926 2 91244 32 ------- Table 3. 1990 Chesapeake Bay Program Land Use in Acres by Phase 4.2 Watershed Model County Segments COSEG SEG FIPS State County Developed Developed Urban Urban Herbaceous Woody Exposed Water Wetland Acreage 10036003 10 36003 NY ALLEGANY 1 2672 291 298 12596 37090 12 5 0 52964 10036015 10 36015 NY CHEMUNG 1463 14292 7343 1007 75404 104028 128 1587 0 205251 10036051 10 36051 NY LIVINGSTON 0 0 0 0 5477 4603 0 0 0 10080 10036069 10 36069 NY ONTARIO 0 0 0 0 276 440 0 0 0 716 10036097 10 36097 NY SCHUYLER 0 1748 188 173 11618 36542 0 1976 0 52246 10036101 10 36101 NY STEUBEN 804 35969 4114 3120 244707 491685 87 3381 0 783867 10036123 10 36123 NY YATES 0 13 39 1 3365 3038 0 28 0 6484 10042015 10 42015 PA BRADFORD 83 2040 928 121 52113 55289 101 931 0 111605 10042105 10 42105 PA POTTER 0 273 39 33 11598 18259 0 103 0 30304 2E+08 200 51069 VA FREDERICK 30 947 404 35 35970 40378 166 173 0 78103 2E+08 200 51139 VA PAGE 0 0 0 0 17 6010 0 0 0 6028 2E+08 200 51165 VA ROCKINGHAM 193 5032 7102 868 90337 134654 66 229 0 238481 2E+08 200 51171 VA SHENANDOAH 235 6972 12079 3280 118750 184812 263 2144 0 328535 2E+08 200 51187 VA WARREN 280 3082 5588 3990 30543 40492 4 1061 0 85040 2E+08 200 51660 VA HARRISONBURG CITY 235 717 221 10 517 11 0 0 0 1711 2E+08 200 54031 WV HARDY 0 43 0 0 1398 7699 0 0 0 9141 2E+08 200 54037 WV JEFFERSON 61 1545 1880 2769 36234 18650 361 1383 9 62893 2.1E+08 210 24013 MD CARROLL 191 2381 929 293 94378 32552 242 190 12 131169 2.1E+08 210 24021 MD FREDERICK 687 18226 3237 908 165233 118454 1002 1602 75 309422 2.1E+08 210 24031 MD MONTGOMERY 31 609 239 109 9792 9411 0 5 1 20197 2.1E+08 210 42001 PA ADAMS 35 1630 207 154 14130 24786 135 72 4 41153 2.2E+08 220 11001 DC DISTRICT OF COLUMBIA 121 898 43 203 0 79 6 25 0 1376 2.2E+08 220 24021 MD FREDERICK 164 873 175 20 12104 5401 8 742 1 19488 2.2E+08 220 24031 MD MONTGOMERY 4687 29212 6222 7743 72194 60460 41 5351 51 185959 2.2E+08 220 51013 VA ARLINGTON CITY 0 9 0 33 0 34 0 0 0 76 2.2E+08 220 51059 VA FAIRFAX 4605 22711 5121 9416 8637 23209 3 252 78 74033 2.2E+08 220 51061 VA FAUQUIER 0 1053 4148 902 50685 40600 39 102 16 97546 2.2E+08 220 51107 VA LOUDOUN 1910 11952 4619 1541 122460 92601 282 1042 77 236484 2.3E+08 230 51003 VA ALBEMARLE 0 0 0 0 710 2148 0 3 0 2860 2.3E+08 230 51047 VA CULPEPER 79 3169 8794 2891 132182 96416 286 909 145 244873 2.3E+08 230 51061 VA FAUQUIER 38 1730 6136 1488 86549 85517 109 422 103 182090 2.3E+08 230 51079 VA GREENE 0 126 1102 318 14573 23449 32 39 0 39638 2.3E+08 230 51113 VA MADISON 0 475 7021 2538 86134 109813 63 160 0 206204 2.3E+08 230 51137 VA ORANGE 44 2106 3239 1844 60776 59292 102 674 45 128123 2.3E+08 230 51157 VA RAPPAHANNOCK 0 665 4092 1134 63553 101361 49 122 0 170975 2.3E+08 230 51177 VA SPOTSYLVANIA 9 453 249 135 6232 19517 22 364 17 26997 2.3E+08 230 51179 VA STAFFORD 0 278 482 294 5462 18059 0 410 15 25001 2.3E+08 230 51630 VA FREDERICKSBURG CITY 0 0 0 0 156 216 4 21 0 398 2.35E+08 235 51033 VA CAROLINE 0 328 422 300 9492 25219 0 94 4 35859 2.35E+08 235 51137 VA ORANGE 0 2 0 0 1004 1701 0 0 2 2708 2.35E+08 235 51177 VA SPOTSYLVANIA 3 971 1207 720 31527 90392 105 882 65 125871 2.4E+08 240 51033 VA CAROLINE 0 2758 2021 1295 56162 127231 0 987 130 190583 2.4E+08 240 51097 VA KING AND QUEEN 0 3 13 105 4427 9627 0 13 0 14189 2.4E+08 240 51101 VA KING WILLIAM 0 8 0 0 1253 2952 0 21 0 4234 2.4E+08 240 51177 VA SPOTSYLVANIA 0 7 87 22 2031 4880 0 12 3 7041 2.5E+08 250 51109 VA LOUISA 42 1305 850 1056 26280 56716 181 8481 13 94923 2.5E+08 250 51137 VA ORANGE 0 171 1674 556 37712 38693 83 373 10 79274 2.5E+08 250 51177 VA SPOTSYLVANIA 0 119 30 0 13345 20525 366 5291 4 39681 2.6E+08 260 51003 VA ALBEMARLE 0 26 0 0 3111 2167 6 10 0 5320 2.6E+08 260 51033 VA CAROLINE 0 565 366 172 8309 23273 0 151 12 32848 2.6E+08 260 51075 VA GOOCHLAND 0 336 2 0 1177 3304 0 7 0 4827 2.6E+08 260 51085 VA HANOVER 0 1637 3075 2068 62228 102192 298 728 69 172296 2.6E+08 260 51109 VA LOUISA 22 2471 2666 1649 76140 137698 0 945 43 221633 2.6E+08 260 51137 VA ORANGE 0 176 379 25 2253 964 0 18 0 3815 2.6E+08 260 51177 VA SPOTSYLVANIA 0 44 199 48 7468 21077 0 7 1 28845 2.65E+08 265 51005 VA ALLEGHANY 0 0 0 0 2 7141 0 502 0 7644 2.65E+08 265 51017 VA BATH 0 553 206 154 12172 116989 814 2114 0 133002 2.65E+08 265 51091 VA HIGHLAND 10 380 426 25 32394 60750 99 0 0 94083 2.7E+08 270 51005 VA ALLEGHANY 191 4804 2008 2105 25850 243249 0 1136 0 279343 2.7E+08 270 51009 VA AMHERST 0 829 9 55 11049 77512 79 826 0 90359 2.7E+08 270 51015 VA AUGUSTA 42 1901 961 416 30326 132011 0 63 0 165722 2.7E+08 270 51017 VA BATH 42 1437 1238 1633 28318 176926 8 506 0 210108 2.7E+08 270 51019 VA BEDFORD 34 788 231 238 5196 31728 0 448 0 38665 2.7E+08 270 51023 VA BOTETOURT 32 8350 5068 2286 68083 220596 17 1927 0 306361 2.7E+08 270 51045 VA CRAIG 0 452 364 85 22363 160053 50 19 0 183386 2.7E+08 270 51071 VA GILES 0 0 0 0 18 7520 0 0 0 7538 2.7E+08 270 51091 VA HIGHLAND 3 322 203 19 27996 81140 0 0 0 109682 2.7E+08 270 51121 VA MONTGOMERY 0 15 0 0 466 13923 0 0 0 14404 2.7E+08 270 51161 VA ROANOKE 0 61 62 46 4990 11581 0 0 0 16740 2.7E+08 270 51163 VA ROCKBRIDGE 327 13169 5689 2880 105114 256488 73 2042 0 385784 2.7E+08 270 51530 VA BUENA VISTA CITY 355 1142 178 141 661 1808 0 102 0 4386 2.7E+08 270 51560 VA CLIFTON FORGE CITY 288 661 39 242 24 687 0 48 0 1989 2.7E+08 270 51580 VA COVINGTON CITY 288 1173 153 181 265 618 0 170 0 2848 2.7E+08 270 51678 VA LEXINGTON CITY 203 856 281 104 72 75 0 8 0 1599 2.7E+08 270 54063 WV MONROE 0 42 69 0 7088 42489 0 0 0 49688 2.7E+08 270 54071 WV PENDLETON 0 0 0 0 595 1124 0 0 0 1719 2.8E+08 280 51003 VA ALBEMARLE 634 9282 10466 9395 141257 283608 37 2660 0 457339 2.8E+08 280 51009 VA AMHERST 254 8531 3545 4923 50584 147114 51 1874 0 216876 33 ------- Table 3. 1990 Chesapeake Bay Program Land Use in Acres by Phase 4.2 Watershed Model County Segments COSEG SEG FIPS State County Developed Developed Urban Urban Herbaceous Woody Exposed Water Wetland Acreage 10036003 10 36003 NY ALLEGANY 1 2672 291 298 12596 37090 12 5 0 52964 10036015 10 36015 NY CHEMUNG 1463 14292 7343 1007 75404 104028 128 1587 0 205251 10036051 10 36051 NY LIVINGSTON 0 0 0 0 5477 4603 0 0 0 10080 10036069 10 36069 NY ONTARIO 0 0 0 0 276 440 0 0 0 716 10036097 10 36097 NY SCHUYLER 0 1748 188 173 11618 36542 0 1976 0 52246 10036101 10 36101 NY STEUBEN 804 35969 4114 3120 244707 491685 87 3381 0 783867 10036123 10 36123 NY YATES 0 13 39 1 3365 3038 0 28 0 6484 10042015 10 42015 PA BRADFORD 83 2040 928 121 52113 55289 101 931 0 111605 10042105 10 42105 PA POTTER 0 273 39 33 11598 18259 0 103 0 30304 2.8E+08 280 51011 VA APPOMATTOX 26 1337 808 883 29395 57314 6 590 0 90360 2.8E+08 280 51019 VA BEDFORD 39 7362 140 413 4241 17223 40 352 0 29809 2.8E+08 280 51029 VA BUCKINGHAM 9 2604 2359 2356 99899 242283 297 2690 0 352497 2.8E+08 280 51031 VA CAMPBELL 195 6624 614 1309 7549 27905 0 318 0 44515 2.8E+08 280 51049 VA CUMBERLAND 40 816 924 460 31178 60028 0 469 0 93915 2.8E+08 280 51065 VA FLUVANNA 24 3313 3497 2285 62713 111423 0 2717 0 185972 2.8E+08 280 51075 VA GOOCHLAND 0 363 184 212 16329 22332 0 689 0 40108 2.8E+08 280 51079 VA GREENE 0 327 3193 584 20798 35877 24 168 0 60971 2.8E+08 280 51109 VA LOUISA 0 170 368 265 3074 6729 0 39 0 10644 2.8E+08 280 51125 VA NELSON 128 1715 4349 3759 66080 226549 47 1565 0 304192 2.8E+08 280 51137 VA ORANGE 0 4 348 152 2267 3296 0 3 0 6071 2.8E+08 280 51540 VA CHARLOTTESVILLE CITY 770 3408 1478 478 282 151 0 11 0 6578 2.8E+08 280 51680 VA LYNCHBURG CITY 1069 14361 196 1270 1782 12992 0 224 0 31895 2.9E+08 290 51041 VA CHESTERFIELD 14 1516 319 602 1470 5765 0 64 1 9751 2.9E+08 290 51049 VA CUMBERLAND 0 379 176 160 12532 19560 0 65 0 32872 2.9E+08 290 51075 VA GOOCHLAND 64 2940 1920 1599 53513 77187 0 3526 74 140822 2.9E+08 290 51087 VA HENRICO 601 8971 1031 1338 3266 5990 0 630 11 21839 2.9E+08 290 51145 VA POWHATAN 4 2160 939 1182 40249 76569 0 1200 113 122416 2.9E+08 290 51760 VA RICHMOND CITY 1 563 58 517 123 680 0 60 0 2002 3E+08 300 51007 VA AMELIA 49 1918 856 478 86507 125304 0 950 69 216132 3E+08 300 51011 VA APPOMATTOX 26 1248 602 762 15116 43313 0 118 0 61185 3E+08 300 51029 VA BUCKINGHAM 0 111 3 33 6072 15406 0 82 0 21706 3E+08 300 51041 VA CHESTERFIELD 0 376 14 1 5758 25987 0 298 4 32437 3E+08 300 51049 VA CUMBERLAND 11 525 851 254 27959 35269 0 419 0 65288 3E+08 300 51135 VA NOTTOWAY 156 1929 986 579 35663 59724 124 466 13 99640 3E+08 300 51145 VA POWHATAN 12 192 160 81 15409 24532 0 244 15 40646 3E+08 300 51147 VA PRINCE EDWARD 258 4371 3162 1657 71478 134093 114 1688 0 216822 3.1E+08 310 51007 VA AMELIA 0 29 0 0 3322 9653 0 540 10 13555 3.1E+08 310 51041 VA CHESTERFIELD 6 460 226 140 4701 23778 0 1611 2 30924 3.1E+08 310 51053 VA DINWIDDIE 21 392 61 36 12194 29423 0 1344 19 43491 3.1E+08 310 51135 VA NOTTOWAY 0 44 0 0 2332 4603 0 27 0 7006 3.3E+08 330 24027 MD HOWARD 10 857 562 376 22889 19450 0 820 18 44983 3.3E+08 330 24031 MD MONTGOMERY 112 1693 897 670 17857 17387 0 634 13 39264 3.4E+08 340 24003 MD ANNE ARUNDEL 1269 8462 2541 1360 5016 19413 13 26 97 38198 3.4E+08 340 24027 MD HOWARD 2253 17591 3304 2944 26018 24387 13 188 33 76733 3.4E+08 340 24033 MD PRINCE GEORGES 1277 9075 1619 1840 2325 9470 3 90 49 25749 3.7E+08 370 10003 DE NEW CASTLE 0 28 21 0 6119 768 0 16 70 7023 3.7E+08 370 24015 MD CECIL 5 433 326 83 25485 9628 0 596 1790 38344 3.8E+08 380 10001 DE KENT 0 20 302 96 10384 8477 0 0 21 19299 3.8E+08 380 10003 DE NEW CASTLE 0 0 0 0 3071 4437 0 0 0 7508 3.8E+08 380 24011 MD CAROLINE 0 0 0 0 15 6 0 0 0 21 3.8E+08 380 24029 MD KENT 3 1242 986 421 75758 20967 8 1317 3146 103848 3.8E+08 380 24035 MD QUEEN ANNES 13 1431 1404 552 85480 32968 0 724 1909 124481 3.9E+08 390 24035 MD QUEEN ANNES 0 579 1039 152 20233 6696 0 475 473 29648 3.9E+08 390 24041 MD TALBOT 0 74 460 98 14995 4578 0 410 341 20954 4E+08 400 10001 DE KENT 0 0 117 11 9190 5140 0 0 0 14459 4E+08 400 24011 MD CAROLINE 14 1803 3135 1044 95654 39885 6 563 3390 145494 4E+08 400 24019 MD DORCHESTER 346 1665 1383 335 20636 5146 0 474 1080 31064 4E+08 400 24035 MD QUEEN ANNES 0 70 216 81 33747 11898 0 9 86 46107 4E+08 400 24041 MD TALBOT 22 634 1648 392 51840 17880 0 724 3146 76286 4.1E+08 410 10001 DE KENT 0 51 172 31 23484 14007 0 0 12 37757 4.1E+08 410 10005 DE SUSSEX 846 4188 4842 2129 126836 90551 46 1146 1594 232177 4.1E+08 410 24011 MD CAROLINE 99 980 508 380 23687 14410 0 48 248 40361 4.1E+08 410 24019 MD DORCHESTER 82 556 630 152 36910 23557 0 748 2956 65590 4.1E+08 410 24045 MD WICOMICO 78 954 1495 517 32612 32120 0 601 7410 75786 4.2E+08 420 10005 DE SUSSEX 56 248 80 29 874 263 0 0 0 1550 4.2E+08 420 24039 MD SOMERSET 31 111 1264 510 12417 15038 0 666 7148 37186 4.2E+08 420 24045 MD WICOMICO 1740 7914 4575 1803 42757 34310 0 641 6612 100352 4.2E+08 420 24047 MD WORCESTER 0 0 0 0 45 25 0 0 0 69 4.3E+08 430 10005 DE SUSSEX 0 0 102 0 11201 11151 0 0 0 22454 4.3E+08 430 24039 MD SOMERSET 16 1718 3107 1923 55464 63961 250 3015 41811 171266 4.3E+08 430 24045 MD WICOMICO 14 414 1506 224 33400 29348 0 17 41 64963 4.3E+08 430 24047 MD WORCESTER 75 1721 1375 629 68868 108863 0 507 1650 183687 4.3E+08 430 51001 VA ACCOMACK 0 64 325 232 7749 8777 0 38 2004 19189 4.4E+08 440 51001 VA ACCOMACK 0 936 2919 1762 48478 48056 228 2205 21058 125640 4.4E+08 440 51131 VA NORTHAMPTON 227 1656 1702 444 40400 15897 662 1792 1186 63965 4.5E+08 450 24005 MD BALTIMORE 0 29 18 17 4317 2822 0 0 0 7203 4.5E+08 450 24015 MD CECIL 278 1950 485 854 15300 14760 4 1134 586 35351 4.5E+08 450 24025 MD HARFORD 214 1350 754 664 47635 42406 82 892 345 94341 34 ------- Table 3. 1990 Chesapeake Bay Program Land Use in Acres by Phase 4.2 Watershed Model County Segments COSEG SEG FIPS State County Developed Developed Urban Urban Herbaceous Woody Exposed Water Wetland Acreage 10036003 10 36003 NY ALLEGANY 1 2672 291 298 12596 37090 12 5 0 52964 10036015 10 36015 NY CHEMUNG 1463 14292 7343 1007 75404 104028 128 1587 0 205251 10036051 10 36051 NY LIVINGSTON 0 0 0 0 5477 4603 0 0 0 10080 10036069 10 36069 NY ONTARIO 0 0 0 0 276 440 0 0 0 716 10036097 10 36097 NY SCHUYLER 0 1748 188 173 11618 36542 0 1976 0 52246 10036101 10 36101 NY STEUBEN 804 35969 4114 3120 244707 491685 87 3381 0 783867 10036123 10 36123 NY YATES 0 13 39 1 3365 3038 0 28 0 6484 10042015 10 42015 PA BRADFORD 83 2040 928 121 52113 55289 101 931 0 111605 10042105 10 42105 PA POTTER 0 273 39 33 11598 18259 0 103 0 30304 4.5E+08 450 42029 PA CHESTER 119 868 319 244 22964 19457 0 331 157 44458 4.5E+08 450 42071 PA LANCASTER 25 906 350 133 52377 15417 29 437 60 69733 4.5E+08 450 42133 PA YORK 3 843 265 23 12490 4107 37 20 0 17788 4.7E+08 470 24005 MD BALTIMORE 3807 20715 5340 4672 87077 112410 1525 4468 810 240824 4.7E+08 470 24013 MD CARROLL 22 397 307 99 13782 6895 32 0 0 21533 4.7E+08 470 24025 MD HARFORD 458 3226 2038 1075 10629 10364 33 359 836 29018 4.7E+08 470 42133 PA YORK 0 92 53 23 4504 1178 0 0 0 5850 4.8E+08 480 24005 MD BALTIMORE 2794 19009 4280 5831 7972 13304 147 69 51 53458 4.8E+08 480 24510 MD BALTIMORE CITY 17352 12740 2505 1568 310 1396 15 217 33 36137 4.9E+08 490 24003 MD ANNE ARUNDEL 4999 21970 2655 2131 4379 13853 243 827 236 51294 4.9E+08 490 24005 MD BALTIMORE 1511 8082 1307 1421 680 4106 95 172 209 17583 4.9E+08 490 24027 MD HOWARD 612 4518 794 1010 3302 8823 4 27 19 19109 4.9E+08 490 24510 MD BALTIMORE CITY 1539 861 17 6 95 35 0 60 14 2626 5E+08 500 24003 MD ANNE ARUNDEL 56 1309 3868 1089 18398 16067 310 660 550 42308 5E+08 500 24009 MD CALVERT 200 2768 12400 6395 25246 50455 86 1569 1713 100832 5E+08 500 24017 MD CHARLES 5 625 1445 952 3577 11325 5 36 126 18096 5E+08 500 24033 MD PRINCE GEORGES 2114 14384 12467 6453 40844 54310 172 583 2322 133649 5E+08 500 24037 MD ST MARYS 423 2120 3617 4099 7911 23678 26 482 742 43098 5.1E+08 510 24003 MD ANNE ARUNDEL 1834 13376 1850 4252 4426 16401 141 953 138 43370 5.4E+08 540 11001 DC DISTRICT OF COLUMBIA 7408 7018 1988 728 435 345 0 299 0 18221 5.4E+08 540 24031 MD MONTGOMERY 1550 16907 2984 4305 4278 8131 176 5 15 38352 5.4E+08 540 24033 MD PRINCE GEORGES 6758 25762 5692 3294 3216 8561 963 63 29 54337 5.5E+08 550 51059 VA FAIRFAX 1996 11722 6799 5135 12892 29258 54 734 75 68665 5.5E+08 550 51061 VA FAUQUIER 265 6211 10558 3888 61303 52213 117 580 81 135216 5.5E+08 550 51107 VA LOUDOUN 105 1435 671 249 6870 6771 50 16 23 16190 5.5E+08 550 51153 VA PRINCE WILLIAM 1946 22157 14722 9344 52900 69911 209 1765 302 173256 5.5E+08 550 51683 VA MANASSAS CITY 707 2788 971 26 1714 208 0 0 5 6420 5.5E+08 550 51685 VA MANASSAS PARK CITY 89 436 176 3 211 255 0 0 1 1171 5.6E+08 560 51033 VA CAROLINE 0 1287 1428 654 15685 56193 0 398 437 76082 5.6E+08 560 51057 VA ESSEX 0 1303 1073 387 53093 87884 0 967 4366 149072 5.6E+08 560 51099 VA KING GEORGE 60 328 452 301 17064 21981 78 302 489 41056 5.6E+08 560 51103 VA LANCASTER 0 410 1447 1140 20850 46344 13 1414 1497 73116 5.6E+08 560 51119 VA MIDDLESEX 0 222 1491 773 16698 26737 97 988 1167 48173 5.6E+08 560 51133 VA NORTHUMBERLAND 0 34 21 25 946 655 0 0 5 1686 5.6E+08 560 51159 VA RICHMOND 0 581 2640 842 40982 72284 3 992 4095 122419 5.6E+08 560 51177 VA SPOTSYLVANIA 317 4817 1389 416 10597 17619 50 254 37 35497 5.6E+08 560 51179 VA STAFFORD 240 3588 1881 880 8642 9899 47 207 27 25410 5.6E+08 560 51193 VA WESTMORELAND 0 86 1198 366 15809 22613 0 234 684 40990 5.6E+08 560 51630 VA FREDERICKSBURG CITY 303 2540 540 363 901 1620 5 83 9 6362 5.8E+08 580 51103 VA LANCASTER 0 0 21 6 313 226 0 0 3 570 5.8E+08 580 51133 VA NORTHUMBERLAND 0 126 1277 790 9534 26352 20 734 801 39634 5.8E+08 580 51159 VA RICHMOND 0 0 0 0 78 79 0 0 0 157 5.9E+08 590 51033 VA CAROLINE 0 32 229 124 2027 5220 0 0 4 7635 5.9E+08 590 51073 VA GLOUCESTER 88 4084 66 94 15930 23993 25 807 2702 47789 5.9E+08 590 51085 VA HANOVER 36 4132 4181 2803 26545 47988 0 1044 28 86759 5.9E+08 590 51095 VA JAMES CITY 90 1513 56 31 4927 13906 0 81 872 21476 5.9E+08 590 51097 VA KING AND QUEEN 25 569 805 291 46085 89874 0 1045 4005 142700 5.9E+08 590 51101 VA KING WILLIAM 20 1024 694 434 56132 106770 0 2426 4793 172292 5.9E+08 590 51127 VA NEW KENT 3 580 148 53 14358 42214 2 1242 4796 63399 5.9E+08 590 51199 VA YORK 519 6854 1633 1445 5418 21797 78 1124 2209 41076 5.9E+08 590 51830 VA WILLIAMSBURG CITY 22 921 63 75 42 326 0 1 53 1504 6E+08 600 51036 VA CHARLES CITY 14 571 275 264 28296 71421 103 1800 3200 105943 6E+08 600 51041 VA CHESTERFIELD 2895 36958 6106 7564 33267 111927 118 4278 749 203861 6E+08 600 51053 VA DINWIDDIE 1391 1055 860 277 1840 1518 61 86 2 7091 6E+08 600 51087 VA HENRICO 838 7405 3585 2302 19315 22379 181 1364 280 57650 6E+08 600 51093 VA ISLE OF WIGHT 565 4125 2606 947 26798 25536 957 956 5142 67632 6E+08 600 51095 VA JAMES CITY 382 9650 640 1042 13661 37419 108 2397 6476 71775 6E+08 600 51127 VA NEW KENT 21 1644 118 102 8338 36699 0 1827 295 49045 6E+08 600 51145 VA POWHATAN 0 69 117 85 1559 3178 0 9 1 5018 6E+08 600 51149 VA PRINCE GEORGE 625 2774 1072 383 32185 38522 0 1267 949 77778 6E+08 600 51181 VA SURRY 171 403 1225 1901 24733 38419 185 1026 2318 70380 6E+08 600 51199 VA YORK 62 1076 409 244 651 5085 2 22 70 7621 6E+08 600 51570 VA COLONIAL HEIGHTS CIT^ 324 2305 283 116 687 909 0 201 71 4896 6E+08 600 51650 VA HAMPTON CITY 612 5233 602 91 98 16 0 162 102 6915 6E+08 600 51670 VA HOPEWELL CITY 796 3456 606 255 375 1028 0 90 32 6638 6E+08 600 51700 VA NEWPORT NEWS CITY 4469 17258 1535 1453 2456 8843 77 1270 2588 39948 6E+08 600 51730 VA PETERSBURG CITY 1169 3412 1152 534 1202 2056 37 152 8 9723 6E+08 600 51760 VA RICHMOND CITY 5696 19139 4230 3858 1221 2041 16 1169 36 37406 6E+08 600 51800 VA SUFFOLK 127 876 856 339 3262 1995 51 362 787 8656 35 ------- Table 3. 1990 Chesapeake Bay Program Land Use in Acres by Phase 4.2 Watershed Model County Segments COSEG SEG FIPS State County Developed Developed Urban Urban Herbaceous Woody Exposed Water Wetland Acreage 10036003 10 36003 NY ALLEGANY 1 2672 291 298 12596 37090 12 5 0 52964 10036015 10 36015 NY CHEMUNG 1463 14292 7343 1007 75404 104028 128 1587 0 205251 10036051 10 36051 NY LIVINGSTON 0 0 0 0 5477 4603 0 0 0 10080 10036069 10 36069 NY ONTARIO 0 0 0 0 276 440 0 0 0 716 10036097 10 36097 NY SCHUYLER 0 1748 188 173 11618 36542 0 1976 0 52246 10036101 10 36101 NY STEUBEN 804 35969 4114 3120 244707 491685 87 3381 0 783867 10036123 10 36123 NY YATES 0 13 39 1 3365 3038 0 28 0 6484 10042015 10 42015 PA BRADFORD 83 2040 928 121 52113 55289 101 931 0 111605 10042105 10 42105 PA POTTER 0 273 39 33 11598 18259 0 103 0 30304 6E+08 600 51830 VA WILLIAMSBURG CITY 43 1299 163 179 156 2133 1 57 24 4055 6.1E+08 610 51036 VA CHARLES CITY 20 140 0 0 3208 8271 0 57 10 11707 6.1E+08 610 51085 VA HANOVER 313 4867 4058 2138 11673 20911 0 238 14 44211 6.1E+08 610 51087 VA HENRICO 2381 22438 5651 4136 11666 27445 12 389 65 74183 6.1E+08 610 51127 VA NEW KENT 0 1442 157 247 4872 16271 0 364 25 23378 6.2E+08 620 51093 VA ISLE OF WIGHT 99 650 792 202 17404 14478 93 824 17 34559 6.2E+08 620 51740 VA PORTSMOUTH CITY 461 1989 305 240 658 371 1582 664 314 6583 6.2E+08 620 51800 VA SUFFOLK 1712 10291 5109 1979 33766 33882 53 4717 4163 95671 6.3E+08 630 51550 VA CHESAPEAKE CITY 359 4900 724 553 1609 3084 0 169 523 11920 6.3E+08 630 51740 VA PORTSMOUTH CITY 723 3972 582 431 171 45 0 314 230 6470 6.5E+08 650 24005 MD BALTIMORE 14 608 244 185 5695 9553 196 1144 19 17659 6.5E+08 650 24013 MD CARROLL 594 3295 1852 746 47573 31588 2 1441 38 87128 7E+08 700 42015 PA BRADFORD 92 4264 415 146 59260 86437 0 1815 0 152429 7E+08 700 42117 PA TIOGA 0 54 0 0 1273 1293 0 35 0 2655 7.1E+08 710 42071 PA LANCASTER 825 5441 1317 339 65072 12721 43 7924 0 93682 7.1E+08 710 42075 PA LEBANON 0 148 9 24 504 5067 0 0 0 5751 7.1E+08 710 42133 PA YORK 355 3257 1306 335 30455 19721 30 139 0 55599 7.2E+08 720 42011 PA BERKS 274 579 229 67 5380 12044 0 61 0 18633 7.2E+08 720 42029 PA CHESTER 22 74 2 0 255 962 0 0 0 1315 7.2E+08 720 42071 PA LANCASTER 5528 34103 7053 2286 167625 51071 733 1822 0 270221 7.2E+08 720 42075 PA LEBANON 0 247 111 17 6530 7080 0 25 0 14009 7.3E+08 730 24043 MD WASHINGTON 0 18 0 0 1500 318 0 103 0 1940 7.3E+08 730 42001 PA ADAMS 3 167 1 2 506 14178 27 251 0 15135 7.3E+08 730 42055 PA FRANKLIN 1333 12104 3212 2140 166137 118378 298 757 3 304362 7.4E+08 740 24043 MD WASHINGTON 582 9274 1028 318 64668 52720 134 4055 45 132825 7.4E+08 740 42055 PA FRANKLIN 0 27 0 0 4499 18421 0 0 0 22947 7.4E+08 740 42057 PA FULTON 0 1081 471 75 41849 127249 0 214 0 170939 7.4E+08 740 51043 VA CLARKE 0 107 22 0 18500 4249 0 19 0 22897 7.4E+08 740 51069 VA FREDERICK 160 6777 2227 532 89599 88128 275 521 0 188218 7.4E+08 740 51840 VA WINCHESTER CITY 182 3179 925 121 1278 291 3 0 0 5978 7.4E+08 740 54003 WV BERKELEY 374 7720 3641 737 97044 95850 0 625 4 205996 7.4E+08 740 54037 WV JEFFERSON 3 264 939 142 31503 9999 0 58 1 42909 7.4E+08 740 54065 WV MORGAN 0 855 122 158 24202 54793 16 87 0 80233 7.5E+08 750 24013 MD CARROLL 0 21 33 1 5346 1392 0 178 5 6976 7.5E+08 750 24021 MD FREDERICK 0 29 5 3 4982 2023 0 69 3 7114 7.5E+08 750 42001 PA ADAMS 247 5208 773 151 57582 35028 142 476 9 99616 7.6E+08 760 24005 MD BALTIMORE 183 1463 481 456 5312 8691 210 34 24 16853 7.6E+08 760 24013 MD CARROLL 89 2015 1060 281 21152 14323 0 299 13 39233 7.6E+08 760 24027 MD HOWARD 7 1048 248 166 9501 10369 0 49 45 21432 7.7E+08 770 10001 DE KENT 0 4 1019 194 26874 22178 0 42 111 50422 7.7E+08 770 24011 MD CAROLINE 0 6 548 112 11300 7258 0 14 47 19284 7.7E+08 770 24035 MD QUEEN ANNES 0 0 39 0 1067 835 0 0 1 1942 7.8E+08 780 10001 DE KENT 0 35 180 27 4367 3242 0 0 0 7851 7.8E+08 780 10005 DE SUSSEX 42 458 1132 128 22735 13322 0 0 24 37841 8E+08 800 10003 DE NEW CASTLE 4 104 263 80 6123 2975 8 107 69 9733 8E+08 800 24015 MD CECIL 428 6994 3857 3747 47330 57312 469 861 2224 123223 8E+08 800 42029 PA CHESTER 53 994 651 208 25120 12984 55 406 27 40497 8.1E+08 810 10003 DE NEW CASTLE 0 19 28 0 3405 1271 0 0 5 4727 8.1E+08 810 24015 MD CECIL 0 192 87 16 11897 4072 0 257 753 17274 8.1E+08 810 24029 MD KENT 0 1078 507 332 50579 18821 0 1522 3011 75848 8.2E+08 820 24035 MD QUEEN ANNES 0 4265 1728 1009 17892 7694 27 1865 1621 36101 8.3E+08 830 24041 MD TALBOT 364 4958 4464 1860 39904 19102 0 3009 1643 75306 8.4E+08 840 24019 MD DORCHESTER 523 797 3887 991 90624 78965 282 12650 80111 268829 8.4E+08 840 24039 MD SOMERSET 0 0 1 0 8 2 0 12 0 25 8.5E+08 850 24025 MD HARFORD 1517 16480 6988 3361 39902 50246 590 772 5783 125638 8.6E+08 860 24005 MD BALTIMORE 8386 15887 2663 1027 2203 3373 0 743 211 34493 8.6E+08 860 24510 MD BALTIMORE CITY 3614 7352 1664 396 124 40 0 67 4 13261 8.7E+08 870 24003 MD ANNE ARUNDEL 481 9926 892 2387 1955 6393 21 587 67 22710 8.8E+08 880 24003 MD ANNE ARUNDEL 989 11839 3726 3041 15190 31760 35 1292 483 68354 8.8E+08 880 24009 MD CALVERT 155 1828 2703 2797 4199 24273 32 163 933 37083 8.9E+08 890 11001 DC DISTRICT OF COLUMBIA 5077 6487 1068 1367 87 2029 11 220 4 16349 8.9E+08 890 24031 MD MONTGOMERY 2987 16771 2006 3576 6644 7192 0 140 9 39324 9E+08 900 11001 DC DISTRICT OF COLUMBIA 34 36 24 0 63 0 0 50 0 207 9E+08 900 51013 VA ARLINGTON CITY 3125 10027 1614 1009 376 385 0 68 1 16606 9E+08 900 51059 VA FAIRFAX 6092 48084 13883 17852 7248 16802 109 847 344 111262 9E+08 900 51510 VA ALEXANDRIA CITY 3065 4994 731 472 199 197 0 25 2 9684 9E+08 900 51600 VA FAIRFAX CITY 641 2214 571 332 45 190 0 0 3 3996 9E+08 900 51610 VA FALLS CHURCH CITY 233 897 46 92 3 0 0 0 0 1271 9.1E+08 910 11001 DC DISTRICT OF COLUMBIA 641 1959 549 120 56 97 0 36 0 3458 36 ------- Table 3. 1990 Chesapeake Bay Program Land Use in Acres by Phase 4.2 Watershed Model County Segments COSEG SEG FIPS State County Developed Developed Urban Urban Herbaceous Woody Exposed Water Wetland Acreage 10036003 10 36003 NY ALLEGANY 1 2672 291 298 12596 37090 12 5 0 52964 10036015 10 36015 NY CHEMUNG 1463 14292 7343 1007 75404 104028 128 1587 0 205251 10036051 10 36051 NY LIVINGSTON 0 0 0 0 5477 4603 0 0 0 10080 10036069 10 36069 NY ONTARIO 0 0 0 0 276 440 0 0 0 716 10036097 10 36097 NY SCHUYLER 0 1748 188 173 11618 36542 0 1976 0 52246 10036101 10 36101 NY STEUBEN 804 35969 4114 3120 244707 491685 87 3381 0 783867 10036123 10 36123 NY YATES 0 13 39 1 3365 3038 0 28 0 6484 10042015 10 42015 PA BRADFORD 83 2040 928 121 52113 55289 101 931 0 111605 10042105 10 42105 PA POTTER 0 273 39 33 11598 18259 0 103 0 30304 9.1E+08 910 24017 MD CHARLES 485 7291 3921 5769 7202 40059 47 665 468 65906 9.1E+08 910 24033 MD PRINCE GEORGES 3459 19871 13380 8369 14526 33338 63 248 51 93304 9.2E+08 920 24017 MD CHARLES 539 9024 11677 8704 52188 123919 101 1551 2951 210655 9.2E+08 920 24033 MD PRINCE GEORGES 5 122 396 218 1081 2815 12 0 6 4655 9.2E+08 920 24037 MD ST MARYS 453 4683 11957 6190 53633 89767 264 2760 1673 171381 9.3E+08 930 51103 VA LANCASTER 0 74 495 295 4079 6102 85 561 419 12110 9.3E+08 930 51133 VA NORTHUMBERLAND 0 64 337 121 6567 9940 38 522 565 18155 9.4E+08 940 51057 VA ESSEX 0 93 6 1 6549 9824 0 50 2 16525 9.4E+08 940 51073 VA GLOUCESTER 58 4343 1074 908 24187 56651 28 1364 4049 92663 9.4E+08 940 51097 VA KING AND QUEEN 0 84 0 0 11557 34077 0 24 20 45761 9.4E+08 940 51115 VA MATHEWS 38 1598 1056 476 17426 29111 417 1836 2941 54898 9.4E+08 940 51119 VA MIDDLESEX 0 147 275 277 10004 24247 9 265 518 35741 9.5E+08 950 51199 VA YORK 537 5713 273 463 2010 6407 0 554 497 16453 9.5E+08 950 51735 VA POQUOSON CITY 43 1511 157 49 1152 631 0 395 2402 6340 9.55E+08 955 51199 VA YORK 171 1413 48 26 263 1409 6 95 154 3584 9.55E+08 955 51650 VA HAMPTON CITY 2731 12652 2315 365 2160 4060 5 596 1395 26280 9.55E+08 955 51700 VA NEWPORT NEWS CITY 410 3103 215 57 123 331 0 66 8 4313 9.55E+08 955 51735 VA POQUOSON CITY 43 896 40 40 449 776 0 54 1379 3677 9.6E+08 960 51131 VA NORTHAMPTON 9 1 0 0 0 0 0 5 0 15 9.6E+08 960 51550 VA CHESAPEAKE CITY 3940 16699 3072 1479 7906 9954 29 999 584 44663 9.6E+08 960 51650 VA HAMPTON CITY 11 8 6 0 0 0 0 3 0 27 9.6E+08 960 51710 VA NORFOLK CITY 7022 13977 2399 1057 415 183 8 749 444 26254 9.6E+08 960 51740 VA PORTSMOUTH CITY 1632 5489 916 87 137 12 0 141 114 8527 9.6E+08 960 51810 VA VIRGINIA BEACH 1184 5613 452 361 231 394 8 397 334 8974 9.65E+08 965 51710 VA NORFOLK CITY 1199 5141 493 277 347 205 79 538 201 8480 9.65E+08 965 51810 VA VIRGINIA BEACH 5172 23148 2654 4159 2674 5594 947 2223 1235 47805 9.7E+08 970 51153 VA PRINCE WILLIAM 357 4071 917 1407 2720 26611 101 239 163 36587 9.8E+08 980 51061 VA FAUQUIER 0 41 52 117 389 1986 0 0 0 2586 9.8E+08 980 51099 VA KING GEORGE 100 1551 2869 2461 14110 51470 26 755 650 73992 9.8E+08 980 51133 VA NORTHUMBERLAND 0 219 1316 490 27777 31636 148 1478 1205 64269 9.8E+08 980 51153 VA PRINCE WILLIAM 13 556 136 221 547 7379 0 288 10 9150 9.8E+08 980 51159 VA RICHMOND 0 5 32 0 147 26 0 0 0 210 9.8E+08 980 51179 VA STAFFORD 238 7631 4494 7000 19718 82426 89 1285 795 123677 9.8E+08 980 51193 VA WESTMORELAND 87 1820 3370 2418 37366 58530 55 1835 1264 106745 9.9E+08 990 24037 MD ST MARYS 735 817 1612 1678 3663 7171 45 635 354 16711 247696 1762463 731338 466449 13415169 23626639 132425 423311 306906 41112397 ------- Section 3. Phase 4.2 Watershed Model Land Use Classification Agricultural Land Use Classification The Phase 4.2 Chesapeake Bay Watershed Model employs the U.S. Agricultural Census data1 to determine agricultural land use. Various categories from several different tables in the U.S. Agricultural Census are used in the calculation of conventionally tilled cropland (High Till), conservation tilled cropland (Low Till), Pasture, and Hay land2. Conservation tillage is defined as all tillage practices that have 30% plant residue cover at the time of planting. This section will review the data and methodology used in the calculation of each land use. Table 4 summarizes the county-based land use data contained in the U.S. Agricultural Census and the table in which the data are found. Data for census years 1982, 1987, 1992 and 1997 have been collected with the 1990 Base Land Use being determined by linear interpolation between the 1987 and 1992 data. Table 4. Agricultural Land Use Data in U.S. Agricultural Census U.S. Agricultural Census Data Category U.S. Agricultural Census Table Total cropland Table 6; Farms, Land in Farms Hay-alfalfa, other tame, small grain, wild, grass silage, green chop, etc. Table 13; Selected Crops Other cropland, cropland in cover crops, legumes, and soil-improvement grasses Table 6; Farms, Land in Farms Other cropland, cropland idle Table 6; Farms, Land in Farms Total cropland, cropland used only for pasture and grazing Table 6; Farms, Land in Farms Other land, pastureland, and rangeland other than cropland and woodland pasture Table 6; Farms, Land in Farms Total woodland, woodland pastured Table 6; Farms, Land in Farms Grass silage, haylage, and green chop hay3 Table 28; Seed, hay, forage, and silage Land in orchards Table 30; Land in Orchards 1 Census of Agriculture, Volume 1, Geographic Area Series, published by the U.S. Department of Commerce, Washington, D.C., 1982, 1987, 1992, and 1997. 2 Italics are used to differentiate Phase 4.2 WSM land uses from CBPLU or Ag. Census land use categories. 3 David Knopf, Deputy State Statistician, Maryland Agricultural Statistics Service, recommended through communication with the Tributary Strategy Workgroup that this category be subtracted from 'Hay-alfalfa, other tame, small grain, wild, grass silage, green chop, etc. (acres)' to avoid double-counting in Hayland acres. 38 ------- High/Low Till, Pasture and Hayland are calculated as follows: Total Hayland 11 lav-altalfa. other tame, small grain, wild, grass silage, green chop, etc.) - (Grass silage, haylage and green chop hay) + (Land in orchards) High/Low Till ( Total Cropland) - (Total Hayland (as calculated above)) - (Total Cropland, Cropland used only for pasture and grazing) Pasture = (Total cropland, cropland used only for pasture and grazing) + (Total woodland, woodland pasture) + (Other land, pastureland and rangeland other than cropland and woodland pasture) Assigning County Based Agricultural Census Data As previously discussed, county-based land use data available in the U.S. Agricultural Census was used to calculate the area of High/Low Till Cropland, Hayland, and Pasture for each county. The following method for disaggregating the data to the county-segment level was then developed. For counties fully contained in the watershed, the fraction of the total Agricultural Census county data assigned to a particular county-segment is determined by the ratio of CBPLU Herbaceous Acres found in a county-segment to the total CBPLU Herbaceous Acres in the county. The following equation illustrates the method for distributing Agricultural Census data to County-Segment 1 located in County X: Fraction of Agricultural Land of County X in County-segment 1 = (CBPLU Herbaceous Acres in County-Segment 1) (CBPLU Herbaceous Acres in County X) This method distributes county based Agricultural Census data into county-segments based on the spatial distribution of herbaceous land in the CBPLU data set. In counties not fully within the watershed, the total county herbaceous acres are not known due to the unavailability of CBPLU data beyond the watershed boundary. Therefore, a method for the estimation of total herbaceous acres in counties not fully within the watershed is needed. The relationship between Total CBPLU Herbaceous acres and Total Agricultural Land from the U.S. Agricultural Census by county (Figure 10) is examined for the 134 counties fully contained in the watershed. This relationship (Total County Herbaceous Acres = Total Agricultural Census County Agricultural Land / 0.7841) was then applied to the 63 counties not fully contained in the Chesapeake Bay Watershed to estimate Total County Herbaceous acres. The method described previously for disaggregating the Agricultural Census county data to the county-segment level was then applied to these counties. 39 ------- Figure 10. CBPLU Herbaceous Acres by County vs. U.S. Agricultural Census Agricultural Land by County a> 400000 £ 350000 to 300000 S> 250000 J 200000 ¦ 150000 < 100000 re 50000 0 100000 200000 300000 400000 500000 Total Herbaceous Acres The final step in the calculation of the agricultural land use for 1990 is the split of the High ILow Till cropland category into its separate components. This is accomplished using information from the Conservation Technology Information Center (CTIC)1 regarding the fraction of cropland under conservation and conventional tillage on a county basis. Non-Agricultural Land Use Classification After the disaggregation of the county-based U.S. Agricultural Census data to the county-segment level is complete, the full land use data set is developed for the remaining land uses at the county- segment level. Impervious Urban, Pervious Urban, and Water are determined based on CBPLU data at the county-segment level in the following manner: Impervious Urban = (0.85 * CBPLU High Intensity Urban) + (0.4 * CBPLU Low Intensity Urban) + (0.1 * CBPLU Herbaceous Urban) + (0.1 * CBPLU Woody Urban) + (0.4 * CBPLU Exposed) Pervious Urban = (0.15 * CBPLU High Intensity Urban) + (0.6 * CBPLU Low Intensity Urban) + (0.9 * CBPLU Herbaceous Urban) + (0.9 * CBPLU Woody Urban) + (0.6 * CBPLU Exposed) 1 Conservation Technology Information Center, West Lafayette, IL 40 ------- Water = CBPLU Water Forest acres in the previous version of the WSM may have been over estimated by the inclusion of wooded pastureland that appears to be forest in the image processing procedure performed on the EMAP satellite data, but has a land use and a stocking rate more like Pasture. The US Agricultural Census data includes a category for wooded pasture, which can now be distinguished from Forest. The 'Woodland Pasture' acres, from the U.S. Agricultural Census data, are removed from CBPLU Woody and added to CBPLU Herbaceous. The final Forest land use for Phase 4.2 will be: Forest = (CBPLU Woody + CBPLU Herbaceous Wetlands) - (Agricultural Census Woodland Pasture) And the new Herbaceous becomes: Herbaceous = (CBPLU Herbaceous) + (Agricultural Census Woodland Pasture) The use, in Phase 4.2, of Agricultural Census data leaves residual acres, representing the difference between Herbaceous and Total Agricultural Census Agricultural Land. A new land use category called Non-Agricultural Herbaceous is created in Phase 4.2 to account for these residual herbaceous acres not in agricultural production. Non-Agricultural Herbaceous land will have an application rate set at 25% of the Pervious Urban application rate. Animal Numbers and Manure Acres The final land use category in the Phase 4.2 Chesapeake Bay Watershed Model is Manure Acres. The Manure Acres land use category simulates the high nutrient content runoff from animal operations in unconfined (pasture) or confined areas where a portion of the manure nutrient content is assumed to be lost in runoff prior to collection. A more detailed description of the calculation of Manure acres, and manure handling in the Chesapeake Bay Watershed Model, can be found in the report, Tracking Best Management Practice Nutrient Reductions in the Chesapeake Bay Program (1999.) Manure Acres are based upon the population of different animal types present within each model segment. Animal populations were gathered from the U.S. Agricultural Census for 1982, 1987, 1992, and 1997 for use in the estimation of Manure Acres as well as application of manure to cropland and pasture. The Watershed Model calculation includes manure generated by beef cattle, dairy cows, swine, layers (2), broilers, and turkeys. Table 5 shows the animal numbers used to estimate the population of each species by county. 41 ------- Table 5. U.S. Agricultural Census Animal Population Data Animal Type Agricultural Census Table Number Agricultural Census Table Name Data heading Beef Cattle 14 Cattle and calves - inventory & sales (Cattle and calves inventory) - (Cows and heifers that had calved, milk cows) Dairy 14 Cattle and calves - inventory & sales Cows and heifers that had calved, milk cows Swine 15 Hogs and pigs - inventory, litters & sales Hogs and pigs Layers > 3 lbs. 16 Poultry - inventory & sales Any poultry, layers and pullets 13 weeks old and older Layers < 3 lbs. 16 Poultry - inventory & sales Any poultry, pullet chicks and pullets less than 13 weeks old Broilers 16 Poultry - inventory & sales Any poultry, broilers and other meat-type chickens Turkeys 16 Poultry - inventory & sales Any poultry, turkeys County based animal populations for 1990 are estimated using an interpolation between the 1987 and 1992 U.S. Agricultural Census values; whereas, the 1985 populations use the 1982 and 1987 Census years. However, as was the case with the land use data taken from the Census, these data must be disaggregated to the county-segment level for use in the Phase 4.2 Watershed Model. The disaggregation is accomplished in a manner similar to that used in determining county-segment land use. The fraction of the county animal population in a given county-segment is equal to the ratio of total agricultural land (High Till, Low Till, Pasture, and Hayland) in the county-segment to the total agricultural land in the county as determined from the Agricultural Census. The animal population in the county is multiplied by this ratio to estimate the animal population in the county-segment. Table 6 shows the final Phase 4.2 Watershed Model 1990 base land use data set by major tributary basin. 42 ------- Table 6. 1990 Phase 4.2 Watershed Model Land Use Sorted by Major Tributary Basin Basin State COSEG County SEG Forest Hi Till Lo Till Pasture PervUrban Hay Non-Ag. Herb. Imperv. Urb Manure E.Shore MD DE 370010003 NEWCASTLE 370 807 2039 2293 232 35 234 1353 13 1 E.Shore MD DE 380010001 KENT 380 8391 2159 5306 447 370 228 2348 48 3 E.Shore MD DE 380010003 NEWCASTLE 380 4421 1023 1151 116 0 117 679 0 0 E.Shore MD DE 400010001 KENT 400 5047 1910 4696 395 115 202 2078 13 2 E.Shore MD DE 410010001 KENT 410 13779 4882 12000 1010 214 516 5310 41 6 E.Shore MD DE 410010005 SUSSEX 410 91337 31980 63410 2511 8941 1489 28191 3110 61 E.Shore MD DE 420010005 SUSSEX 420 258 220 437 17 255 10 194 158 0 E.Shore MD DE 430010005 SUSSEX 430 11080 2824 5600 222 92 132 2489 10 5 E.Shore MD DE 770010001 KENT 770 22014 5586 13733 1156 1095 590 6077 123 7 E.Shore MD DE 780010001 KENT 780 3197 908 2231 188 208 96 987 35 1 E.Shore MD DE 780010005 SUSSEX 780 13201 5732 11366 450 1415 267 5053 345 11 E.Shore MD DE 800010003 NEWCASTLE 800 3012 2040 2294 232 377 234 1354 82 1 E.Shore MD DE 810010003 NEWCASTLE 810 1257 1134 1276 129 37 130 753 11 0 E.Shore MD MD 370024015 CECIL 370 11130 3972 7496 3413 628 2135 8746 218 10 E.Shore MD MD 380024011 CAROLINE 380 6 4 8 0 0 0 2 0 0 E.Shore MD MD 380024029 KENT 380 23624 36605 26540 2927 2017 2265 7881 643 29 E.Shore MD MD 380024035 QUEEN ANNES 380 33619 23693 49850 3596 2621 1493 8089 779 16 E.Shore MD MD 390024035 QUEEN ANNES 390 6872 5608 11799 851 1420 353 1915 351 4 E.Shore MD MD 390024041 TALBOT 390 4852 4239 8444 371 546 201 1806 85 2 E.Shore MD MD 400024011 CAROLINE 400 42242 23831 51897 3175 4848 2053 15701 1154 30 E.Shore MD MD 400024019 DORCHESTER 400 6041 6637 7009 416 2597 129 6625 1132 5 E.Shore MD MD 400024035 QUEEN ANNES 400 11488 9354 19681 1420 309 589 3194 58 6 E.Shore MD MD 400024041 TALBOT 400 20796 14653 29192 1281 2219 694 6242 476 7 E.Shore MD MD 410024011 CAROLINE 410 14403 5901 12851 786 1402 508 3888 565 7 E.Shore MD MD 410024019 DORCHESTER 410 26181 11871 12537 743 1050 231 11850 370 9 E.Shore MD MD 410024045 WICOMICO 410 38998 15869 4531 1188 2395 346 11194 649 15 E.Shore MD MD 420024039 SOMERSET 420 22086 1242 6075 335 1668 224 4635 249 6 E.Shore MD MD 420024045 WICOMICO 420 40224 20806 5941 1558 10749 453 14677 5282 20 E.Shore MD MD 420024047 WORCESTER 420 24 30 2 3 0 0 11 0 0 E.Shore MD MD 430024039 SOMERSET 430 105326 5548 27137 1494 5710 1001 20703 1304 28 E.Shore MD MD 430024045 WICOMICO 430 28844 16253 4641 1217 1807 354 11465 350 16 E.Shore MD MD 430024047 WORCESTER 430 109014 45811 3486 4085 2847 577 16367 952 41 E.Shore MD MD 770024011 CAROLINE 770 7182 2815 6131 375 597 243 1855 68 4 E.Shore MD MD 770024035 QUEEN ANNES 770 820 296 622 45 35 19 101 4 0 E.Shore MD MD 800024015 CECIL 800 59002 7377 13921 6339 11386 3965 16243 4110 19 E.Shore MD MD 810024015 CECIL 810 4691 1854 3499 1593 208 997 4083 87 5 E.Shore MD MD 810024029 KENT 810 21505 24439 17719 1954 1401 1512 5262 515 19 E.Shore MD MD 820024035 QUEEN ANNES 820 9052 4959 10434 753 5038 312 1693 1990 3 E.Shore MD MD 830024041 TALBOT 830 20569 11280 22470 986 8721 534 4805 2925 6 E.Shore MD MD 840024019 DORCHESTER 840 158264 29146 30782 1825 5116 566 29094 1364 23 E.Shore MD MD 840024039 SOMERSET 840 2 1 4 0 1 0 3 0 0 E.Shore MD PA 800042029 CHESTER 800 12740 0 10489 4215 1410 4968 5695 550 25 E.Shore MD VA 430051001 ACCOMACK 430 10744 5826 23 195 540 31 1710 81 1 BASIN SUBTOTAL 1028140 402357 531005 54246 92442 30999 282401 30301 456 E.Shore VA VA 440051001 ACCOMACK 440 68882 36444 142 1222 4911 197 10697 933 6 E.Shore VA VA 440051131 NORTHAMPTON 440 16829 26390 3989 1169 3356 129 8977 1335 0 BASIN SUBTOTAL 85711 62834 4131 2391 8267 326 19674 2268 6 James VA 265051005 ALLEGHANY 265 7140 0 0 1 0 0 1 0 0 James VA 265051017 BATH 265 116233 211 235 5326 1144 1827 5330 583 0 James VA 265051091 HIGHLAND 265 55657 47 399 23023 695 3448 10569 245 1 James VA 270051005 ALLEGHANY 270 239485 533 335 11369 6613 3107 14267 2495 1 James VA 270051009 AMHERST 270 74597 105 437 9129 602 2031 2261 369 0 James VA 270051015 AUGUSTA 270 129540 1263 3209 20393 2387 5499 2418 934 14 James VA 270051017 BATH 270 175166 490 547 12390 3457 4250 12401 901 0 James VA 270051019 BEDFORD 270 30996 213 127 2736 900 998 1854 391 1 James VA 270051023 BOTETOURT 270 213202 1110 3157 38136 11644 10968 22094 4110 13 James VA 270051045 CRAIG 270 157775 476 476 12523 705 4059 7106 246 1 James VA 270051071 GILES 270 7517 0 1 12 0 2 7 0 0 James VA 270051091 HIGHLAND 270 76739 40 345 19897 393 2980 9134 153 1 James VA 270051121 MONTGOMERY 270 13868 5 27 262 9 71 155 6 0 James VA 270051161 ROANOKE 270 10972 176 179 2546 134 1009 1687 35 1 James VA 270051163 ROCKBRIDGE 270 240121 0 6669 86060 15707 22036 6702 6432 13 James VA 270051530 BUENA VISTA CITY 270 1808 0 0 0 1026 0 661 790 0 James VA 270051560 CLIFTON FORGE CITY 270 687 0 0 0 693 0 24 537 0 James VA 270051580 COVINGTON CITY 270 618 0 0 0 1048 0 265 747 0 James VA 270051678 LEXINGTON CITY 270 75 0 0 0 890 0 72 553 0 James VA 280051003 ALBEMARLE 280 269974 4895 3437 76337 23561 33476 36736 6252 10 James VA 280051009 AMHERST 280 133772 481 2000 41795 12809 9298 10350 4496 2 James VA 280051011 APPOMATTOX 280 53524 2212 1197 14258 2332 5378 10136 728 4 James VA 280051019 BEDFORD 280 16626 174 104 2233 4945 814 1513 3049 1 James VA 280051029 BUCKINGHAM 280 235484 0 6030 23942 5985 11517 65201 1640 8 James VA 280051031 CAMPBELL 280 26919 898 312 3466 5735 1242 2615 3008 1 James VA 280051049 CUMBERLAND 280 57663 420 2446 10301 1741 3820 16545 499 9 James VA 280051065 FLUVANNA 280 106975 785 2719 22618 7195 9704 31333 1924 1 James VA 280051075 GOOCHLAND 280 21595 1687 882 3605 574 1817 9073 185 1 James VA 280051079 GREENE 280 33853 712 1133 9441 3610 3897 7635 518 4 James VA 280051109 LOUISA 280 6542 66 255 832 672 433 1674 131 0 James VA 280051125 NELSON 280 217475 352 2729 35194 8373 12208 24670 1625 2 James VA 280051137 ORANGE 280 3163 241 84 947 453 469 657 52 0 James VA 280051540 CHARLOTTESVILLE CITY 280 151 0 0 0 3921 0 282 2213 0 James VA 280051680 LYNCHBURG CITY 280 12992 0 0 0 10096 0 1782 6800 0 James VA 290051041 CHESTERFIELD 290 5719 122 47 138 1741 59 1151 710 0 James VA 290051049 CUMBERLAND 290 18609 169 983 4141 530 1536 6651 185 4 James VA 290051075 GOOCHLAND 290 74845 5528 2891 11815 4941 5955 29735 1583 4 James VA 290051087 HENRICO 290 5307 401 1226 414 7605 178 1741 4337 0 James VA 290051145 POWHATAN 290 74724 2329 3084 10213 3205 5623 20947 1079 11 James VA 290051760 RICHMOND CITY 290 680 0 0 0 856 0 123 284 0 James VA 300051007 AMELIA 300 120276 10333 7639 17704 2359 7684 48223 942 22 James VA 300051011 APPOMATTOX 300 41364 1137 616 7332 1980 2765 5212 658 2 James VA 300051029 BUCKINGHAM 300 14993 0 366 1455 99 700 3963 48 0 James VA 300051041 CHESTERFIELD 300 25807 476 184 542 238 230 4510 152 0 James VA 300051049 CUMBERLAND 300 33149 377 2194 9238 1311 3426 14838 330 8 James VA 300051135 NOTTOWAY 300 55780 3179 3226 15341 2664 6206 11657 1111 12 James VA 300051145 POWHATAN 300 23798 892 1181 3910 334 2153 8020 111 4 James VA 300051147 PRINCE EDWARD 300 124668 10544 2931 23066 7067 10342 34000 2496 19 James VA 310051007 AMELIA 310 9468 397 293 680 17 295 1852 11 1 Water 16 0 0 0 0 1146 0 0 42 0 0 107 0 596 0 1317 724 475 410 563 474 9 724 48 748 601 666 641 0 3015 17 507 14 0 861 257 1522 1865 3009 12650 12 406 38 33479 2205 1792 3996 502 2114 0 1136 826 63 506 448 1927 19 0 0 0 0 2042 102 48 170 8 2660 1874 590 352 2690 318 469 2717 689 168 39 1565 3 11 224 64 65 3526 630 1200 60 950 118 82 298 419 466 244 1688 540 43 ------- Table 6. 1990 Phase 4.2 Watershed Model Land Use Sorted by Major Tributary Basin Basin State COSEG County SEG Forest Hi Till James VA 310051041 CHESTERFIELD 310 23630 389 James VA 310051053 DINWIDDIE 310 28584 4978 James VA 310051135 NOTTOWAY 310 4344 208 James VA 600051036 CHARLES CITY 600 74330 7049 James VA 600051041 CHESTERFIELD 600 111615 2750 James VA 600051053 DINWIDDIE 600 1391 751 James VA 600051087 HENRICO 600 18551 2369 James VA 600051093 ISLE OF WIGHT 600 29905 10373 James VA 600051095 JAMES CITY 600 43679 1262 James VA 600051127 NEW KENT 600 36810 1712 James VA 600051145 POWHATAN 600 3103 90 James VA 600051149 PRINCE GEORGE 600 38134 13108 James VA 600051181 SURRY 600 40187 9052 James VA 600051199 YORK 600 5155 46 James VA 600051570 COLONIAL HEIGHTS CITY 600 981 0 James VA 600051650 HAMPTON CITY 600 118 0 James VA 600051670 HOPEWELL CITY 600 1059 0 James VA 600051700 NEWPORT NEWS CITY 600 11430 0 James VA 600051730 PETERSBURG CITY 600 2063 0 James VA 600051760 RICHMOND CITY 600 2076 0 James VA 600051800 SUFFOLK 600 2727 1061 James VA 600051830 WILLIAMSBURG CITY 600 2157 0 James VA 610051036 CHARLES CITY 610 8248 799 James VA 610051085 HANOVER 610 20427 2934 James VA 610051087 HENRICO 610 25032 1431 James VA 610051127 NEW KENT 610 16188 1001 James VA 620051093 ISLE OF WIGHT 620 13992 6737 James VA 620051740 PORTSMOUTH CITY 620 684 0 James VA 620051800 SUFFOLK 620 37469 10978 James VA 630051550 CHESAPEAKE CITY 630 3601 0 James VA 630051740 PORTSMOUTH CITY 630 276 0 James VA 955051199 YORK 955 1563 18 James VA 955051650 HAMPTON CITY 955 5456 0 James VA 955051700 NEWPORT NEWS CITY 955 340 0 James VA 955051735 POQUOSON CITY 955 2155 0 James VA 960051131 NORTHAMPTON 960 0 0 James VA 960051550 CHESAPEAKE CITY 960 10510 0 James VA 960051650 HAMPTON CITY 960 0 0 James VA 960051710 NORFOLK CITY 960 627 0 James VA 960051740 PORTSMOUTH CITY 960 126 0 James VA 960051810 VIRGINIA BEACH 960 726 0 James VA 965051710 NORFOLK CITY 965 406 0 James VA 965051810 VIRGINIA BEACH 965 6805 0 James WV 270054063 MONROE 270 41471 273 James WV 270054071 PENDLETON 270 949 9 BASIN SUBTOTAL 4057173 132855 Patuxent MD 330024027 HOWARD 330 19109 1578 Patuxent MD 330024031 MONTGOMERY 330 17042 179 Patuxent MD 340024003 ANNE ARUNDEL 340 19343 1218 Patuxent MD 340024027 HOWARD 340 24012 1794 Patuxent MD 340024033 PRINCE GEORGES 340 9376 742 Patuxent MD 500024003 ANNE ARUNDEL 500 16001 4467 Patuxent MD 500024009 CALVERT 500 50379 12343 Patuxent MD 500024017 CHARLES 500 11318 587 Patuxent MD 500024033 PRINCE GEORGES 500 54127 13036 Patuxent MD 500024037 ST MARYS 500 23977 2938 Patuxent MD 990024037 ST MARYS 990 7320 1360 BASIN SUBTOTAL 252004 40242 Potomac DC 220011001 DISTRICT OF COLUMBIA 220 79 0 Potomac DC 540011001 DISTRICT OF COLUMBIA 540 345 0 Potomac DC 890011001 DISTRICT OF COLUMBIA 890 2033 0 Potomac DC 900011001 DISTRICT OF COLUMBIA 900 0 0 Potomac DC 910011001 DISTRICT OF COLUMBIA 910 98 0 Potomac MD 160024001 ALLEGANY 160 117958 2528 Potomac MD 160024023 GARRETT 160 123004 2752 Potomac MD 175024001 ALLEGANY 175 87510 1562 Potomac MD 175024043 WASHINGTON 175 22793 186 Potomac MD 180024021 FREDERICK 180 32902 1213 Potomac MD 180024043 WASHINGTON 180 46115 3901 Potomac MD 210024013 CARROLL 210 31362 20038 Potomac MD 210024021 FREDERICK 210 114459 3823 Potomac MD 210024031 MONTGOMERY 210 9215 98 Potomac MD 220024021 FREDERICK 220 5104 280 Potomac MD 220024031 MONTGOMERY 220 59062 725 Potomac MD 540024031 MONTGOMERY 540 8060 43 Potomac MD 540024033 PRINCE GEORGES 540 8393 1026 Potomac MD 730024043 WASHINGTON 730 274 82 Potomac MD 740024043 WASHINGTON 740 50857 3528 Potomac MD 750024013 CARROLL 750 1328 1135 Potomac MD 750024021 FREDERICK 750 1903 115 Potomac MD 890024031 MONTGOMERY 890 7067 67 Potomac MD 910024017 CHARLES 910 40259 1182 Potomac MD 910024033 PRINCE GEORGES 910 32497 4636 Potomac MD 920024017 CHARLES 920 124929 8563 Potomac MD 920024033 PRINCE GEORGES 920 2755 345 Potomac MD 920024037 ST MARYS 920 88437 19920 Potomac PA 160042009 BEDFORD 160 68465 1724 Potomac PA 160042111 SOMERSET 160 60682 2978 Potomac PA 175042009 BEDFORD 175 83906 2123 Potomac PA 175042057 FULTON 175 12313 493 Potomac PA 180042001 ADAMS 180 4545 33 Potomac PA 180042055 FRANKLIN 180 21881 7049 Potomac PA 210042001 ADAMS 210 24550 2744 Potomac PA 730042001 ADAMS 730 14170 98 Potomac PA 730042055 FRANKLIN 730 115595 33840 Potomac PA 740042055 FRANKLIN 740 18346 916 Pasture PervUrban Hay Non-Ag. Herb. Imperv. Urb Manure Water 443 607 188 3682 225 0 1611 3017 326 765 3490 184 4 1344 1003 27 406 762 18 1 27 1372 891 882 12232 335 1 1800 3132 34983 1330 26054 18658 1 4278 455 1902 115 527 1743 1 86 2449 9975 1053 10303 4336 0 1364 2261 6332 272 6560 2868 24 956 843 7426 640 9112 4396 1 2397 478 1188 183 4192 698 0 1827 396 223 218 812 48 0 9 4191 3068 1255 8286 1787 4 1267 2875 3192 259 5890 693 26 1026 38 1244 17 528 549 0 22 0 1790 0 687 1237 0 201 0 3855 0 98 2683 0 162 0 2968 0 375 2145 0 90 0 13760 0 2456 11031 0 1270 0 3763 0 1202 2542 0 152 0 19626 0 1221 13312 0 1169 201 1651 38 760 598 1 362 0 1094 0 156 591 0 57 156 87 100 1387 73 0 57 2295 8543 1371 4033 2832 2 238 1480 22636 636 6217 11983 0 389 279 1229 107 2449 617 0 364 1469 1355 177 4260 480 16 824 0 2702 0 658 1874 0 664 2078 12842 397 7866 6301 8 4717 41 4143 28 353 2393 0 169 0 3404 0 171 2305 0 314 15 943 7 213 720 0 95 0 10416 0 2160 7652 0 596 0 2167 0 123 1617 0 66 0 617 0 449 403 0 54 0 2 0 0 8 0 5 201 14724 139 1735 10496 1 999 0 11 0 0 13 0 3 0 12555 0 415 11909 0 749 0 4441 0 137 3683 0 141 8 4282 2 52 3336 0 397 0 4005 0 347 3184 0 538 90 21364 27 601 14715 0 2223 4070 87 816 2548 24 1 0 548 0 75 118 0 0 0 630644 427440 215014 645512 223980 271 69710 4079 1361 2629 8024 445 6 820 3039 2443 2135 6062 930 4 634 842 8786 504 2077 4859 0 26 4636 16524 2988 9121 9582 7 188 398 8752 169 997 5063 0 90 3090 5441 1848 7619 1191 1 660 4858 18658 1869 5962 3191 1 1569 480 2536 214 1540 496 1 36 6984 26079 2963 17508 9511 4 583 1211 8295 516 2157 1989 3 482 561 3589 239 999 1299 2 635 30178 102464 16074 62066 38557 29 5724 0 782 0 0 489 0 25 0 7766 0 435 9376 0 299 0 6852 0 87 7158 0 220 0 48 0 63 46 0 50 0 1874 0 56 1395 0 36 10989 15351 4319 9285 7227 7 920 8436 2485 4908 7327 1576 17 896 6790 598 2668 5737 379 5 1040 795 733 591 788 292 5 557 12363 2176 10538 9238 1270 65 1133 16709 9374 12404 16548 6200 77 1453 14808 2703 12982 23226 1334 53 190 38959 15369 33208 29110 8690 206 1602 1667 684 1171 3324 305 2 5 2854 729 2433 2132 511 15 742 12287 30823 8632 24507 17081 16 5351 728 17043 511 1452 8880 1 5 550 25136 233 1378 17333 0 63 351 11 260 347 7 2 103 15113 6944 11219 14967 4393 69 4055 839 44 735 1316 12 3 178 1175 25 1001 878 12 6 69 1131 15534 794 2255 9805 2 140 967 13196 431 3100 4317 1 665 2484 32053 1054 6226 13088 2 248 7009 23899 3122 22463 6146 7 1551 185 634 78 463 119 0 0 8213 19369 3501 14625 4179 23 2760 3908 594 3873 3698 292 17 415 3840 327 3089 4522 168 14 5 4810 0 4768 4552 0 21 0 908 22 1093 195 15 5 0 25 13 49 33 9 0 32 5111 4047 8244 5727 2324 59 12 2091 1389 4035 2738 772 9 72 75 120 145 98 81 0 251 24537 12458 39579 27494 6629 284 757 664 16 1072 745 11 8 0 Lo Till 150 798 211 7049 1062 120 7250 8081 2019 1956 119 6680 7180 23 0 0 0 0 0 0 1257 0 799 1535 4379 1143 5249 0 13015 1192 0 9 0 0 0 0 5858 0 0 0 171 0 1979 398 19 146036 6932 6796 542 7880 163 1990 2002 889 2855 1527 707 32283 0 0 0 0 0 342 1546 211 1142 20309 23968 24475 63997 3727 4688 27475 1628 225 503 21678 1386 1930 2529 1789 1015 12965 76 10354 2947 1672 3628 799 33 8996 2754 99 43190 1170 44 ------- Table 6. 1990 Phase 4.2 Watershed Model Land Use Sorted by Major Tributary Basin Basin State COSEG County SEG Forest Hi Till Potomac PA 740042057 FULTON 740 125483 6152 Potomac PA 750042001 ADAMS 750 34060 11184 Potomac VA 170051091 HIGHLAND 170 36053 33 Potomac VA 180051107 LOUDOUN 180 29970 6544 Potomac VA 190051015 AUGUSTA 190 187683 9244 Potomac VA 190051139 PAGE 190 111254 1243 Potomac VA 190051165 ROCKINGHAM 190 152824 6785 Potomac VA 190051187 WARREN 190 35153 202 Potomac VA 190051660 HARRISONBURG CITY 190 807 0 Potomac VA 190051790 STAUNTON CITY 190 1627 0 Potomac VA 190051820 WAYNESBORO CITY 190 1111 0 Potomac VA 200051043 CLARKE 200 35249 2453 Potomac VA 200051069 FREDERICK 200 38512 932 Potomac VA 200051139 PAGE 200 6009 0 Potomac VA 200051165 ROCKINGHAM 200 129313 5129 Potomac VA 200051171 SHENANDOAH 200 178611 7308 Potomac VA 200051187 WARREN 200 38677 459 Potomac VA 200051660 HARRISONBURG CITY 200 11 0 Potomac VA 220051013 ARLINGTON CITY 220 34 0 Potomac VA 220051059 FAIRFAX 220 23174 38 Potomac VA 220051061 FAUQUIER 220 37288 2196 Potomac VA 220051107 LOUDOUN 220 87646 16643 Potomac VA 550051059 FAIRFAX 550 29165 57 Potomac VA 550051061 FAUQUIER 550 48268 2656 Potomac VA 550051107 LOUDOUN 550 6512 934 Potomac VA 550051153 PRINCE WILLIAM 550 68788 1521 Potomac VA 550051683 MANASSAS CITY 550 213 0 Potomac VA 550051685 MANASSAS PARK CITY 550 256 0 Potomac VA 740051043 CLARKE 740 3651 878 Potomac VA 740051069 FREDERICK 740 83480 2322 Potomac VA 740051840 WINCHESTER CITY 740 291 0 Potomac VA 900051013 ARLINGTON CITY 900 386 0 Potomac VA 900051059 FAIRFAX 900 17051 32 Potomac VA 900051510 ALEXANDRIA CITY 900 199 0 Potomac VA 900051600 FAIRFAX CITY 900 193 0 Potomac VA 900051610 FALLS CHURCH CITY 900 0 0 Potomac VA 970051153 PRINCE WILLIAM 970 26701 78 Potomac VA 980051061 FAUQUIER 980 1961 17 Potomac VA 980051099 KING GEORGE 980 51274 4312 Potomac VA 980051133 NORTHUMBERLAND 980 31901 16839 Potomac VA 980051153 PRINCE WILLIAM 980 7374 16 Potomac VA 980051159 RICHMOND 980 24 66 Potomac VA 980051179 STAFFORD 980 82107 1802 Potomac VA 980051193 WESTMORELAND 980 59060 20062 Potomac WV 160054023 GRANT 160 95136 1072 Potomac WV 160054027 HAMPSHIRE 160 7217 158 Potomac WV 160054057 MINERAL 160 154296 1463 Potomac WV 160054077 PRESTON 160 701 4 Potomac WV 160054093 TUCKER 160 486 0 Potomac WV 170054023 GRANT 170 91366 1141 Potomac WV 170054027 HAMPSHIRE 170 84663 1036 Potomac WV 170054031 HARDY 170 103394 4766 Potomac WV 170054071 PENDLETON 170 299499 1614 Potomac WV 175054027 HAMPSHIRE 175 206876 2690 Potomac WV 175054031 HARDY 175 147676 3872 Potomac WV 175054065 MORGAN 175 55948 256 Potomac WV 180054037 JEFFERSON 180 5703 1103 Potomac WV 200054031 HARDY 200 7359 138 Potomac WV 200054037 JEFFERSON 200 17871 1808 Potomac WV 740054003 BERKELEY 740 92540 5724 Potomac WV 740054037 JEFFERSON 740 9316 1572 Potomac WV 740054065 MORGAN 740 53760 929 BASIN SUBTOTAL 4686465 287230 Rapp VA 230051003 ALBEMARLE 230 2079 25 Rapp VA 230051047 CULPEPER 230 92397 5547 Rapp VA 230051061 FAUQUIER 230 79936 3750 Rapp VA 230051079 GREENE 230 22031 499 Rapp VA 230051113 MADISON 230 102944 5232 Rapp VA 230051137 ORANGE 230 55786 6473 Rapp VA 230051157 RAPPAHANNOCK 230 95995 719 Rapp VA 230051177 SPOTSYLVANIA 230 19246 486 Rapp VA 230051179 STAFFORD 230 17765 499 Rapp VA 230051630 FREDERICKSBURG CITY 230 216 0 Rapp VA 560051033 CAROLINE 560 56289 3898 Rapp VA 560051057 ESSEX 560 91289 28819 Rapp VA 560051099 KING GEORGE 560 21446 5215 Rapp VA 560051103 LANCASTER 560 47656 8300 Rapp VA 560051119 MIDDLESEX 560 27904 6406 Rapp VA 560051133 NORTHUMBERLAND 560 628 574 Rapp VA 560051159 RICHMOND 560 75690 18381 Rapp VA 560051177 SPOTSYLVANIA 560 17167 827 Rapp VA 560051179 STAFFORD 560 9437 790 Rapp VA 560051193 WESTMORELAND 560 22987 8488 Rapp VA 560051630 FREDERICKSBURG CITY 560 1628 0 Rapp VA 580051103 LANCASTER 580 227 125 Rapp VA 580051133 NORTHUMBERLAND 580 26830 5780 Rapp VA 580051159 RICHMOND 580 78 35 Rapp VA 930051103 LANCASTER 930 6485 1624 Rapp VA 930051133 NORTHUMBERLAND 930 10283 3981 BASIN SUBTOTAL 904421 116473 Susq MD 110024013 CARROLL 110 1300 451 Susq MD 140024015 CECIL 140 3545 192 Susq MD 140024025 HARFORD 140 15360 966 Susq MD 450024005 BALTIMORE 450 2742 422 Susq MD 450024015 CECIL 450 15173 2385 Susq MD 450024025 HARFORD 450 41780 2775 Pasture PervUrban Hay Non-Ag. Herb. Imperv. Urb Manure Water 11354 1140 13646 2435 487 49 214 8520 4079 16441 11156 2443 36 476 16445 308 2464 7551 131 5 0 19910 596 10530 5658 152 5 146 149215 23329 40237 17695 6567 104 472 33391 14505 12404 11232 2413 25 1720 63850 21663 25932 11372 5846 161 1845 6327 3020 2832 4665 457 0 708 0 3158 0 3133 2470 0 5 0 4609 0 4536 1900 0 4 0 3397 0 2487 2004 0 18 26524 1180 12803 6583 527 13 926 12370 1068 8179 14659 515 2 173 9 0 3 3 0 0 0 48262 10261 19601 8596 3000 122 229 59038 18199 25541 21743 4629 37 2144 14394 10513 6442 10614 2430 1 1061 0 674 0 517 510 0 0 0 35 0 0 7 0 0 1438 27403 417 6533 14453 1 252 28927 5201 10563 5860 942 13 102 50636 13171 26781 14389 7133 12 1042 2147 18105 623 9751 7601 1 734 34987 16838 12777 7088 4201 16 580 2841 1735 1502 807 776 1 16 11883 35371 7451 27291 13007 10 1765 0 2677 0 1714 1816 0 0 0 437 0 211 268 0 0 9493 84 4582 2356 45 5 19 30812 6739 20373 36514 3232 6 521 0 2877 0 1278 1532 0 0 0 8846 0 376 6930 0 68 1207 58392 350 5482 27629 1 847 0 4539 0 199 4723 0 25 0 2237 0 45 1521 0 0 0 698 0 3 571 0 0 611 4648 383 1403 2205 1 239 222 177 81 45 33 0 0 3295 5758 1448 2814 1249 0 755 1872 1846 224 6387 327 1 1478 123 657 77 282 270 0 288 5 31 4 49 5 0 0 4008 15012 2190 11733 4440 1 1285 2943 6347 1166 8297 1403 2 1835 30965 3360 5600 15549 2100 12 1371 2170 222 826 954 195 1 30 31281 5990 10298 1192 3170 14 1107 52 122 24 38 81 0 0 14 26 5 9 17 0 0 32954 2680 5960 16548 1351 13 487 14250 1580 5423 6267 899 7 1755 38856 1853 6555 8933 1075 28 142 100637 3406 13718 21687 1676 47 568 36983 2316 14075 16265 1217 17 1458 31568 1542 5326 7258 693 23 144 1249 2025 840 4284 974 1 1019 6369 1046 3771 5447 291 9 113 1122 26 189 258 17 0 0 10441 5338 6181 8930 1279 15 1383 26185 8628 22308 38165 3844 28 625 9078 1132 5374 7764 216 13 58 4535 775 3048 15552 376 1 87 1247132 674846 580306 721776 304192 1859 58237 383 0 168 185 0 0 3 44403 12602 24901 42966 2618 28 909 49395 7970 18038 10007 1530 22 422 6615 1372 2731 5349 205 3 39 46420 8926 18076 15333 1171 27 160 25403 5906 12572 17626 1429 12 674 34813 5132 16602 14571 808 1 122 1399 632 779 3425 236 1 364 1110 866 607 3250 189 0 410 0 2 0 156 2 0 21 1071 2647 539 9363 723 1 398 2040 2095 560 15568 667 4 967 3984 930 1751 3403 288 0 302 1039 2583 79 8829 428 1 1414 611 2229 728 7636 354 2 988 64 62 8 218 18 0 0 1500 3484 1098 13498 582 2 992 2380 4592 1325 5824 2397 2 254 1757 4702 960 5142 1934 1 207 1245 1459 493 3510 191 1 234 0 2384 0 901 1366 0 83 16 25 1 133 3 0 0 643 1948 77 2192 265 0 734 3 0 2 26 0 0 0 203 807 15 1727 143 0 561 443 474 53 1510 87 0 522 226938 73828 102165 192348 17632 107 10781 333 18 292 523 5 1 0 165 19 103 423 13 1 1426 3160 532 1948 5054 179 6 1704 812 49 390 1647 15 1 0 2049 2419 1282 5251 1152 6 1134 9077 2167 5596 14515 896 18 892 Lo Till 9979 11222 285 7483 23477 7089 18481 196 0 0 0 4986 1694 2 13969 11285 447 0 0 323 6454 19031 482 7806 1068 6170 0 0 1785 4220 0 0 271 0 0 0 317 49 3088 3394 64 26 1097 5630 181 150 2271 4 0 192 983 1087 3514 2552 883 322 5885 31 9647 7949 8387 1170 510326 17 18502 11021 794 7914 2241 2213 429 304 0 1153 7063 3735 2787 1314 116 7193 730 481 2382 0 42 1165 14 545 802 72956 551 362 5789 1125 4500 16626 45 ------- Table 6. 1990 Phase 4.2 Watershed Model Land Use Sorted by Major Tributary Basin Basin State COSEG County SEG Forest Hi Till Susq. NY 10036003 ALLEGANY 10 36426 2820 Susq. NY 10036015 CHEMUNG 10 94247 18635 Susq. NY 10036051 LIVINGSTON 10 4508 2621 Susq. NY 10036069 ONTARIO 10 436 128 Susq. NY 10036097 SCHUYLER 10 36231 2292 Susq. NY 10036101 STEUBEN 10 480110 73831 Susq. NY 10036123 YATES 10 2988 1194 Susq. NY 20036007 BROOME 20 182828 27522 Susq. NY 20036015 CHEMUNG 20 21138 2847 Susq. NY 20036017 CHENANGO 20 358644 37893 Susq. NY 20036023 CORTLAND 20 162604 27563 Susq. NY 20036025 DELAWARE 20 115009 7062 Susq. NY 20036043 HERKIMER 20 21114 6017 Susq. NY 20036053 MADISON 20 126644 24797 Susq. NY 20036065 ONEIDA 20 19114 2614 Susq. NY 20036067 ONONDAGA 20 20980 4558 Susq. NY 20036077 OTSEGO 20 356213 49057 Susq. NY 20036095 SCHOHARIE 20 17574 1364 Susq. NY 20036097 SCHUYLER 20 18356 1184 Susq. NY 20036107 TIOGA 20 162106 27270 Susq. NY 20036109 TOMPKINS 20 45952 5160 Susq. PA 10042015 BRADFORD 10 53311 10850 Susq. PA 10042105 POTTER 10 17568 3225 Susq. PA 10042117 TIOGA 10 259558 15650 Susq. PA 20042015 BRADFORD 20 29492 6118 Susq. PA 20042115 SUSQUEHANNA 20 124333 4200 Susq. PA 20042127 WAYNE 20 13719 275 Susq. PA 30042015 BRADFORD 30 217559 35544 Susq. PA 30042069 LACKAWANNA 30 139850 6985 Susq. PA 30042079 LUZERNE 30 61239 3419 Susq. PA 30042081 LYCOMING 30 970 12 Susq. PA 30042113 SULLIVAN 30 13586 425 Susq. PA 30042115 SUSQUEHANNA 30 175298 11391 Susq. PA 30042117 TIOGA 30 3040 237 Susq. PA 30042127 WAYNE 30 14425 125 Susq. PA 30042131 WYOMING 30 162758 9627 Susq. PA 40042037 COLUMBIA 40 156085 29010 Susq. PA 40042079 LUZERNE 40 251873 28104 Susq. PA 40042093 MONTOUR 40 9547 4441 Susq. PA 40042097 NORTHUMBERLAND 40 68808 15121 Susq. PA 40042107 SCHUYLKILL 40 38957 3017 Susq. PA 40042113 SULLIVAN 40 27979 124 Susq. PA 50042021 CAMBRIA 50 141592 9283 Susq. PA 50042027 CENTRE 50 105757 803 Susq. PA 50042033 CLEARFIELD 50 461950 8136 Susq. PA 50042063 INDIANA 50 27943 1898 Susq. PA 50042065 JEFFERSON 50 8 0 Susq. PA 60042023 CAMERON 60 237301 211 Susq. PA 60042027 CENTRE 60 281736 19315 Susq. PA 60042033 CLEARFIELD 60 110155 957 Susq. PA 60042035 CLINTON 60 484972 11168 Susq. PA 60042047 ELK 60 156069 3309 Susq. PA 60042081 LYCOMING 60 389504 6436 Susq. PA 60042083 MCKEAN 60 15096 49 Susq. PA 60042105 POTTER 60 369173 8578 Susq. PA 60042113 SULLIVAN 60 2786 73 Susq. PA 60042117 TIOGA 60 231132 7537 Susq. PA 70042015 BRADFORD 70 5990 540 Susq. PA 70042027 CENTRE 70 9034 45 Susq. PA 70042037 COLUMBIA 70 5305 1745 Susq. PA 70042081 LYCOMING 70 201230 7527 Susq. PA 70042093 MONTOUR 70 12056 12147 Susq. PA 70042097 NORTHUMBERLAND 70 16799 13133 Susq. PA 70042113 SULLIVAN 70 189382 4231 Susq. PA 70042119 UNION 70 80671 18154 Susq. PA 70042131 WYOMING 70 3091 65 Susq. PA 80042027 CENTRE 80 91939 11618 Susq. PA 80042041 CUMBERLAND 80 75713 16704 Susq. PA 80042043 DAUPHIN 80 132050 17717 Susq. PA 80042055 FRANKLIN 80 41225 7783 Susq. PA 80042067 JUNIATA 80 10019 2255 Susq. PA 80042075 LEBANON 80 9595 6 Susq. PA 80042087 MIFFLIN 80 10177 17 Susq. PA 80042097 NORTHUMBERLAND 80 41784 14129 Susq. PA 80042099 PERRY 80 157047 8494 Susq. PA 80042107 SCHUYLKILL 80 67327 9829 Susq. PA 80042109 SNYDER 80 95156 20871 Susq. PA 80042119 UNION 80 34595 5954 Susq. PA 90042009 BEDFORD 90 285537 15791 Susq. PA 90042013 BLAIR 90 3334 1681 Susq. PA 90042021 CAMBRIA 90 0 19 Susq. PA 90042057 FULTON 90 18489 591 Susq. PA 90042061 HUNTINGDON 90 85732 2887 Susq. PA 90042111 SOMERSET 90 14853 397 Susq. PA 100042009 BEDFORD 100 8565 636 Susq. PA 100042013 BLAIR 100 228000 28643 Susq. PA 100042027 CENTRE 100 32644 3347 Susq. PA 100042055 FRANKLIN 100 11070 1164 Susq. PA 100042057 FULTON 100 56630 1831 Susq. PA 100042061 HUNTINGDON 100 344598 16865 Susq. PA 100042067 JUNIATA 100 140855 20196 Susq. PA 100042087 MIFFLIN 100 151634 16115 Susq. PA 100042099 PERRY 100 72392 3959 Susq. PA 100042109 SNYDER 100 5930 330 Susq. PA 110042001 ADAMS 110 53624 21614 Susq. PA 110042011 BERKS 110 12616 5925 Susq. PA 110042041 CUMBERLAND 110 59011 5095 Susq. PA 110042043 DAUPHIN 110 28640 14316 Pasture PervUrban Hay Non-Ag. Herb. Imperv. Urb Manure Water 3614 2140 3277 3384 1133 11 5 11838 16386 12221 41717 7846 57 1587 689 0 716 1277 0 4 0 23 0 36 63 0 0 0 2945 1374 2960 2820 735 7 1976 55678 28264 60320 64408 15829 175 3381 384 44 744 777 9 2 28 30696 35404 24435 77670 19206 139 5802 1809 464 1867 6374 243 9 23 57256 11487 48074 50326 4872 228 3433 25478 7360 22943 28112 2364 143 1608 23781 3351 16965 18041 1832 68 864 8237 1376 7128 7806 685 34 254 16396 2591 13746 18053 556 95 1672 2876 292 2507 2883 151 11 116 1742 715 2608 2990 108 13 423 72141 12447 61094 64338 4997 261 8823 1970 176 2499 2025 87 7 125 1521 394 1529 1457 231 4 360 29062 14330 27313 62496 6120 112 2781 2018 584 2463 2982 258 12 122 12162 2241 14988 15264 1032 60 931 3284 228 2576 3195 116 10 103 41067 8487 39918 30249 4492 123 3120 6858 1544 8451 8607 1055 34 618 15748 4072 12880 22563 2362 46 3150 2112 51 1639 1783 21 5 338 39843 4133 49099 50005 2301 198 5328 8606 42642 12035 13375 21233 26 3561 706 14195 1105 5149 11161 5 1823 16 0 23 67 0 0 0 607 129 728 2665 80 2 101 42712 3357 34932 61195 1464 124 4517 623 42 605 459 28 2 0 964 306 748 813 135 2 373 15019 19646 15875 18703 3747 51 4990 9423 9432 15665 50301 4800 52 2304 5803 28430 9086 42320 18702 40 5737 1068 4691 1605 5492 1235 9 546 2947 10677 4097 16130 6305 34 3171 1245 2966 1598 2247 1256 6 237 177 13 212 775 9 1 150 5697 6353 7281 8436 3058 17 1962 487 3455 635 1167 1956 3 570 7382 29124 10476 9858 17580 21 3859 1578 2273 1910 2052 1396 6 26 0 512 0 0 342 0 0 645 2009 726 11130 810 1 1682 11724 13812 15290 28090 6756 81 3061 868 1756 1232 1160 1061 2 271 5801 9307 7895 37481 5305 46 6239 3489 1826 3530 3708 971 7 587 8188 7351 12294 35142 4043 45 4633 129 35 98 111 20 0 4 8734 1491 6851 8499 498 25 443 104 7 125 456 4 0 48 19777 2637 19224 14568 1558 59 944 605 12 745 759 8 3 90 27 28 35 65 19 0 0 567 78 942 3026 41 3 0 9575 8022 14377 41097 3779 52 3377 2921 854 4390 15020 568 24 259 2559 3778 3559 14009 2115 30 2607 6042 1808 7243 26510 914 22 1398 4545 3898 10472 16713 1902 76 434 102 0 108 127 0 0 11 7052 1051 9197 16896 345 48 205 16630 15746 25296 34853 10546 168 1938 5374 9838 9333 27459 5842 53 14074 5633 5124 9103 6324 1667 76 138 1132 58 1746 3303 25 10 4 2 0 2 4 0 0 0 16 0 19 32 0 0 26 2753 532 3828 15071 235 32 6376 8661 3588 14250 26140 1614 70 1708 4056 9702 5207 7320 5882 21 157 8914 3576 17627 34440 1356 131 1572 1490 338 3434 5481 47 25 498 35787 7394 35472 33867 2778 156 2317 602 51 1032 910 12 7 0 12 0 15 17 0 0 0 1090 144 1311 234 96 6 0 3668 453 3899 4697 150 19 8506 512 208 412 603 118 2 0 1442 374 1430 1365 75 6 5 10260 18852 17578 15498 8049 125 1026 2032 151 2650 4868 38 14 11 842 75 1361 946 41 11 0 3377 802 4062 725 352 18 133 21432 4131 22780 27441 1746 111 1621 10134 1704 15638 29578 609 90 1680 14887 6760 17769 27921 2169 137 2288 4037 633 6642 12184 203 32 618 141 15 278 544 3 2 0 16466 3688 31774 21561 1630 70 1023 2297 822 4254 5393 427 26 5 5081 7644 7715 10630 4909 43 309 4351 18527 7542 22188 11375 35 6712 Lo Till 155 716 265 29 906 1871 314 2009 109 1297 2537 93 654 1026 277 1355 1953 417 468 1937 309 767 0 13388 432 2166 269 2512 3677 668 34 49 5873 203 123 5205 23090 5494 2081 12425 1807 14 2910 530 3602 1167 0 0 12761 424 6954 61 17745 0 0 8 6447 38 29 1389 20753 5690 10791 486 10952 35 7676 41963 11816 9933 1276 3 16 11609 22797 5886 21535 3592 26991 193 6 959 2850 223 1088 3284 2211 1485 2970 16654 11422 14756 10626 340 21687 6423 12799 9548 ------- Table 6. 1990 Phase 4.2 Watershed Model Land Use Sorted by Major Tributary Basin Basin State COSEG County SEG Forest Hi Till Susq. PA 110042071 LANCASTER 110 8214 6327 Susq. PA 110042075 LEBANON 110 46716 33865 Susq. PA 110042107 SCHUYLKILL 110 56663 7640 Susq. PA 110042133 YORK 110 126915 34867 Susq. PA 120042029 CHESTER 120 2810 0 Susq. PA 120042071 LANCASTER 120 29134 22079 Susq. PA 120042133 YORK 120 10696 1691 Susq. PA 140042071 LANCASTER 140 13163 10692 Susq. PA 140042133 YORK 140 35742 9671 Susq. PA 450042029 CHESTER 450 19365 0 Susq. PA 450042071 LANCASTER 450 15054 17373 Susq. PA 450042133 YORK 450 4008 2063 Susq. PA 700042015 BRADFORD 700 84187 12338 Susq. PA 700042117 TIOGA 700 1211 151 Susq. PA 710042071 LANCASTER 710 12195 21584 Susq. PA 710042075 LEBANON 710 5064 172 Susq. PA 710042133 YORK 710 19479 5030 Susq. PA 720042011 BERKS 720 12004 1321 Susq. PA 720042029 CHESTER 720 959 0 Susq. PA 720042071 LANCASTER 720 49717 55601 Susq. PA 720042075 LEBANON 720 7037 2230 BASIN SUBTOTAL 10682927 1178334 West.Shore MD 470024005 BALTIMORE 470 111608 8518 West.Shore MD 470024013 CARROLL 470 6719 2926 West.Shore MD 470024025 HARFORD 470 10984 619 West.Shore MD 480024005 BALTIMORE 480 13207 780 West.Shore MD 480024510 BALTIMORE CITY 480 1429 0 West.Shore MD 490024003 ANNE ARUNDEL 490 13943 1063 West.Shore MD 490024005 BALTIMORE 490 4302 67 West.Shore MD 490024027 HOWARD 490 8790 228 West.Shore MD 490024510 BALTIMORE CITY 490 49 0 West.Shore MD 510024003 ANNE ARUNDEL 510 16391 1074 West.Shore MD 650024005 BALTIMORE 650 9467 557 West.Shore MD 650024013 CARROLL 650 31020 10100 West.Shore MD 760024005 BALTIMORE 760 8616 520 West.Shore MD 760024013 CARROLL 760 14067 4491 West.Shore MD 760024027 HOWARD 760 10265 655 West.Shore MD 850024025 HARFORD 850 55216 2325 West.Shore MD 860024005 BALTIMORE 860 3543 215 West.Shore MD 860024510 BALTIMORE CITY 860 44 0 West.Shore MD 870024003 ANNE ARUNDEL 870 6395 475 West.Shore MD 880024003 ANNE ARUNDEL 880 31734 3688 West.Shore MD 880024009 CALVERT 880 24909 2053 West.Shore PA 470042133 YORK 470 1142 744 BASIN SUBTOTAL 383840 41097 York VA 235051033 CAROLINE 235 25018 2359 York VA 235051137 ORANGE 235 1644 107 York VA 235051177 SPOTSYLVANIA 235 89000 2460 York VA 240051033 CAROLINE 240 126144 13958 York VA 240051097 KING AND QUEEN 240 9506 2095 York VA 240051101 KING WILLIAM 240 2921 501 York VA 240051177 SPOTSYLVANIA 240 4789 158 York VA 250051109 LOUISA 250 55133 560 York VA 250051137 ORANGE 250 36500 4016 York VA 250051177 SPOTSYLVANIA 250 19913 1041 York VA 260051003 ALBEMARLE 260 1867 108 York VA 260051033 CAROLINE 260 23104 2065 York VA 260051075 GOOCHLAND 260 3251 122 York VA 260051085 HANOVER 260 99607 15644 York VA 260051109 LOUISA 260 133119 1623 York VA 260051137 ORANGE 260 833 240 York VA 260051177 SPOTSYLVANIA 260 20733 583 York VA 590051033 CAROLINE 590 5180 504 York VA 590051073 GLOUCESTER 590 26370 4929 York VA 590051085 HANOVER 590 46884 6673 York VA 590051095 JAMES CITY 590 14700 455 York VA 590051097 KING AND QUEEN 590 92616 21811 York VA 590051101 KING WILLIAM 590 110152 22446 York VA 590051127 NEW KENT 590 46693 2949 York VA 590051199 YORK 590 24006 380 York VA 590051830 WILLIAMSBURG CITY 590 379 0 York VA 940051057 ESSEX 940 9708 3555 York VA 940051073 GLOUCESTER 940 60206 7484 York VA 940051097 KING AND QUEEN 940 33780 5469 York VA 940051115 MATHEWS 940 31898 4345 York VA 940051119 MIDDLESEX 940 24765 3838 York VA 950051199 YORK 950 6904 141 York VA 950051735 POQUOSON CITY 950 3033 0 BASIN SUBTOTAL 1190354 132619 Pasture PervUrban Hay Non-Ag. Herb. Imperv. Urb Manure Water 2553 2743 3214 2238 1705 61 3726 11723 13485 14287 22058 7269 198 1027 3156 3754 4048 5689 1822 13 164 19401 26923 24571 65928 14353 132 4707 366 0 432 495 0 2 0 8908 3717 11216 7810 2171 215 2787 941 115 1192 3198 35 6 78 4314 533 5432 3782 314 104 6694 5381 693 6815 18285 339 37 480 3853 1046 4541 5206 505 23 331 7009 999 8826 6146 443 169 437 1148 788 1454 3901 384 8 20 13830 3077 17043 17358 1840 69 1815 396 32 385 292 22 1 35 8708 4905 10965 7635 3060 210 7924 60 118 73 112 63 1 0 2799 3503 3545 9511 1781 19 139 512 654 948 1202 494 6 61 43 50 50 58 49 0 0 22432 30136 28245 19668 19567 540 1822 772 264 941 1452 112 13 25 996750 621608 1113238 1718466 324426 6149 197363 16371 22926 7863 33225 13133 25 4468 2162 625 1896 3392 230 8 0 2025 4826 1249 3239 2004 4 359 1499 21013 720 3042 11049 2 69 0 13922 0 310 20259 0 217 735 18385 440 1813 13613 0 827 128 7588 61 259 4828 0 172 588 4429 379 1158 2509 1 27 0 768 0 95 1655 0 60 743 13877 444 1833 7576 0 953 1071 871 514 2173 376 2 1144 7464 4405 6544 11707 2084 27 1441 999 1874 480 2027 918 2 34 3319 2430 2910 5205 1016 12 299 1693 1002 1091 3331 466 2 49 7603 19784 4687 12159 9152 15 772 414 14111 199 841 13852 1 743 0 6807 0 124 6218 0 67 328 8992 196 810 4715 0 587 2551 13363 1525 6290 6267 1 1292 808 6089 311 992 1426 0 163 414 124 524 1407 44 3 0 50916 188211 32034 95430 123391 105 13741 648 847 326 5666 203 1 94 420 1 208 291 1 0 0 7080 2380 3943 17325 625 5 882 3834 4639 1930 33526 1435 3 987 236 108 81 1732 13 1 13 164 5 32 261 3 0 21 456 102 254 1116 14 0 12 7113 2613 3705 14312 821 2 8481 15763 2160 7801 10937 325 8 373 2997 318 1669 7334 197 2 5291 1681 19 737 809 13 0 10 567 823 286 4960 280 0 151 260 204 131 654 135 0 7 12232 5790 7309 21502 1288 10 728 20609 5369 10736 41465 1438 6 945 942 469 466 653 111 0 18 1677 249 934 4104 42 1 7 138 337 70 1210 48 0 0 724 2623 365 8671 1735 1 807 5218 8771 3118 9172 2382 4 1044 304 1000 231 3286 691 1 81 2461 1332 844 18026 359 6 1045 7346 1633 1449 11673 539 9 2426 823 531 316 7219 256 0 1242 316 7007 139 4391 3522 0 1124 0 680 0 42 401 0 1 252 62 69 1920 38 0 50 1099 4416 555 13166 1996 1 1364 617 50 212 4520 34 1 24 825 2593 341 11905 992 0 1836 366 590 436 4575 117 1 265 117 4170 51 1629 2815 0 554 0 1099 0 1152 661 0 395 97286 62989 48745 269206 23529 63 30280 Lo Till 4836 17683 4575 67886 911 16874 3293 8172 18828 9589 13277 4016 872 129 16495 90 9794 1432 106 42492 1164 757831 22686 3574 3710 2077 0 474 177 1000 0 479 1484 12337 1384 5485 2877 13927 574 0 211 1643 333 1448 75880 698 37 2171 4127 404 326 140 2183 1390 919 76 611 64 8186 6325 83 514 149 1565 3492 728 4201 14619 3369 191 0 871 2376 1054 162 787 71 0 61887 ------- Section 4. Land Use Hindcasting and Forecasting Agricultural land uses for 1998 and 2000 are estimated by extending the trends of the 1992-1997 Agricultural Census data for High/Low Till, Pasture, and Hayland on a county-segment basis. Change in agricultural land acres between 1992 and 1997 is assumed to occur in equal annual increments. The rate of annual change is then applied at the county- segment level to forecast the 1998 and 2000 agricultural land use categories. Impervious Urban and Pervious Urban are projected to increase by the percent increase in population predicted for each county-segment. Population projections were acquired from the U.S. Census Bureau web site for 1985 through 1998. The year 2000 population is estimated by extending the population trend for 1996-1998 through 2000. The net change in agricultural and urban land from the base 1990 land use is applied to Non-Agricultural Herbaceous and Forest land uses while maintaining the 1990 ratio between these land uses. It was decided that the Forest in any given county-segment should never be less than 2% of the county-segment area. In some areas however, there are not enough base Forest acres to accommodate the increase in urban acres. This occurs in urban areas, such as Baltimore City and incorporated towns in Virginia, where there are no losses in agricultural land to offset the urban increases. If the increase in urban land results in a violation of the 2% forest threshold, Forest is held to 2% of the total county- segment area. The remaining change in acres is applied to the Pervious Urban and Non-Agricultural Herbaceous land use categories while maintaining the 1990 ratio between these land uses. Tables 7, 8, and 9 show the hindcasted and forecasted Phase 4.2 Chesapeake Bay Watershed Model land use data sets for 1985, 1998, and 2000 respectively. Animal Projections Animal populations are projected for the scenarios employing 1998 and 2000 land use. Industry trends are collected from representatives for each jurisdiction. Each source is asked for an estimated industry trend for the year 2000. This trend is assumed to occur in equal annual increments, thus providing a method for the estimation of 1998 animal numbers. Table 10 shows the data collected from each state. Unless otherwise noted, the figures shown in Table 11 are the percent increase in animal population by the over the three year period from 1997-2000. Table 10. Expected annual state trends by animal species used to project 1998 and 2000 populations (%) State Beef Dairy Swine Layers > 3 lbs. Layers < 3 lbs. Broilers Turkeys PA1 -0.83 +0.54 +2.75 -1.93 -9.77 +5.18 +13.97 MD2 nc nc nc nc nc +1.5/year nc VA 3 nc -3 3 nc 4 nc s nc s nc s nc s NY6 nc -4 -20 -2.5/year -2.5/year -2.5/year -2.5/year WV 7 nc 7 nc 7 nc nc 8 nc 8 nc 8 nc 8 DE9 nc +10 nc + 7.5 + 7.5 + 7.5 + 7.5 1. Data unavailable - 1992-1997 trend continued through 2000 2. Dr. Thomas W. Simpson, University of Maryland, Department of Agriculture and Natural Resources 3. Dr. Charles Stallings, Extension Dairy Project Leader, Dairy Scientist, VPISU (aka VA Tech) 4. Dr. Allen Harper, Extension Swine Specialist, Tidewater AREC 5. Mr. Phil Clauer, Animal & Poultry Science Dept., VPISU (aka VA Tech) 6. Keith Severson, Otsego County Cooperative Extension 7. Wayne Wagner, Extension Dairy Specialist, West Virginia University 8. Casey Ritz, Extension Poultry Specialist, West Virginia University 9. Tom Feurer, State Agricultural Statistician, Delaware Agricultural Statistics Service 48 ------- Table 7. Hindcasted 1985 Phase 4.2 Chesapeake Bay Watershed Model Land Use in Acres by County Segment State County COSEG SEG FIPS Forest Hi Till NY ALLEGANY 10036003 10 36003 34984 3139 NY CHEMUNG 10036015 10 36015 99478 12212 NY LIVINGSTON 10036051 10 36051 4222 2794 NY ONTARIO 10036069 10 36069 422 151 NY SCHUYLER 10036097 10 36097 35286 3895 NY STEUBEN 10036101 10 36101 471529 77497 NY YATES 10036123 10 36123 2862 1478 PA BRADFORD 10042015 10 42015 51537 11616 PA POTTER 10042105 10 42105 16720 3219 PA TIOGA 10042117 10 42117 254655 29193 NY BROOME 20036007 20 36007 183631 18148 NY CHEMUNG 20036015 20 36015 21952 1874 NY CHENANGO 20036017 20 36017 346341 47691 NY CORTLAND 20036023 20 36023 156925 33889 NY DELAWARE 20036025 20 36025 105868 13262 NY HERKIMER 20036043 20 36043 19507 8063 NY MADISON 20036053 20 36053 122333 25439 NY ONEIDA 20036065 20 36065 18174 3082 NY ONONDAGA 20036067 20 36067 20242 5630 NY OTSEGO 20036077 20 36077 334357 56995 NY SCHOHARIE 20036095 20 36095 16862 2200 NY SCHUYLER 20036097 20 36097 17858 2016 NY TIOGA 20036107 20 36107 158160 33536 NY TOMPKINS 20036109 20 36109 44770 5224 PA BRADFORD 20042015 20 42015 28486 6559 PA SUSQUEHANNA 20042115 20 42115 122038 5009 PA WAYNE 20042127 20 42127 13112 317 PA BRADFORD 30042015 30 42015 211537 38021 PA LACKAWANNA 30042069 30 42069 137138 5745 PA LUZERNE 30042079 30 42079 61789 2235 PA LYCOMING 30042081 30 42081 964 19 PA SULLIVAN 30042113 30 42113 13428 502 PA SUSQUEHANNA 30042115 30 42115 169556 13185 PA TIOGA 30042117 30 42117 2968 328 PA WAYNE 30042127 30 42127 14151 138 PA WYOMING 30042131 30 42131 160007 10762 PA COLUMBIA 40042037 40 42037 152123 41712 PA LUZERNE 40042079 40 42079 260132 18373 PA MONTOUR 40042093 40 42093 7787 6536 PA NORTHUMBERLAND 40042097 40 42097 67246 15715 PA SCHUYLKILL 40042107 40 42107 38579 3043 PA SULLIVAN 40042113 40 42113 27926 146 PA CAMBRIA 50042021 50 42021 139965 12051 PA CENTRE 50042027 50 42027 105874 698 PA CLEARFIELD 50042033 50 42033 458371 10092 PA INDIANA 50042063 50 42063 27431 2414 PA JEFFERSON 50042065 50 42065 17 0 PA CAMERON 60042023 60 42023 237084 231 PA CENTRE 60042027 60 42027 279892 16787 PA CLEARFIELD 60042033 60 42033 109822 1187 PA CLINTON 60042035 60 42035 482060 12956 PA ELK 60042047 60 42047 155700 2700 PA LYCOMING 60042081 60 42081 386627 9763 PA MCKEAN 60042083 60 42083 15075 40 PA POTTER 60042105 60 42105 366536 8559 PA SULLIVAN 60042113 60 42113 2759 86 PA TIOGA 60042117 60 42117 228648 10422 PA BRADFORD 70042015 70 42015 5891 577 PA CENTRE 70042027 70 42027 9027 39 PA COLUMBIA 70042037 70 42037 5099 2509 PA LYCOMING 70042081 70 42081 198182 11418 PA MONTOUR 70042093 70 42093 8483 17876 PA NORTHUMBERLAND 70042097 70 42097 15976 13648 PA SULLIVAN 70042113 70 42113 187726 4992 PA UNION 70042119 70 42119 81077 17342 PA WYOMING 70042131 70 42131 3067 73 PA CENTRE 80042027 80 42027 90496 10108 PA CUMBERLAND 80042041 80 42041 72416 21552 PA DAUPHIN 80042043 80 42043 127872 25929 PA FRANKLIN 80042055 80 42055 40440 8070 PA JUNIATA 80042067 80 42067 9833 2674 PA LEBANON 80042075 80 42075 9594 7 PA MIFFLIN 80042087 80 42087 10175 18 PA NORTHUMBERLAND 80042097 80 42097 40667 14697 PA PERRY 80042099 80 42099 155196 11917 PA SCHUYLKILL 80042107 80 42107 66110 9921 PA SNYDER 80042109 80 42109 94134 22308 PA UNION 80042119 80 42119 34646 5692 PA BEDFORD 90042009 90 42009 280128 18971 PA BLAIR 90042013 90 42013 3187 1392 PA CAMBRIA 90042021 90 42021 1 25 PA FULTON 90042057 90 42057 18326 817 PA HUNTINGDON 90042061 90 42061 85727 3245 PA SOMERSET 90042111 90 42111 14814 353 PA BEDFORD 100042009 100 42009 8355 769 Pervious Non-Ag. Impervious 'asture Urban Hay Herb. Urban Manure Acres Water 4286 2167 3865 3250 1147 12 5 11808 16598 13393 41246 7948 39 1587 809 0 787 1196 0 4 0 25 0 37 61 0 0 0 3126 1338 3033 2746 716 8 1976 57868 28283 61951 63257 15840 182 3381 380 43 710 744 9 2 28 13501 2277 15623 14756 1048 63 931 3971 235 2847 3041 120 10 103 43936 8471 41738 29678 4484 132 3120 36376 35528 28757 75596 19274 108 5802 1804 470 2046 6326 246 6 23 58813 11218 51214 48600 4758 243 3433 24674 7349 24459 27130 2361 162 1608 26160 3337 18869 16607 1824 85 864 7724 1385 7820 7212 690 38 254 18512 2516 16580 17438 540 103 1672 3401 294 2696 2741 152 13 116 1965 711 2662 2885 108 14 423 84041 12299 68908 60391 4938 304 8823 2041 170 2705 1943 84 9 125 1615 383 1567 1417 225 4 360 27995 13985 29221 60975 5973 206 2781 2349 563 2715 2906 248 13 122 7613 1569 8810 8314 1072 35 618 17391 3946 13588 22146 2289 50 3150 2559 48 1834 1704 20 6 338 44229 4199 51181 48620 2338 206 5328 10423 43506 13429 13099 21663 31 3561 732 14518 1250 5108 11415 4 1823 18 0 24 67 0 0 0 725 131 706 2634 82 2 101 47167 3252 36855 59190 1419 135 4517 666 42 633 448 28 2 0 1168 288 837 798 127 3 373 17528 19071 16748 18387 3637 62 4990 10000 9339 16963 49024 4753 56 2304 6013 29077 10271 41920 19127 31 5737 923 4551 1728 4479 1198 9 546 3319 10876 4909 15764 6422 36 3171 1162 3044 1651 2225 1289 7 237 211 14 205 773 9 1 150 5872 6748 7464 8339 3248 17 1962 523 3301 676 1168 1869 3 570 7813 30147 11347 9782 18198 24 3859 1800 2302 1975 2014 1414 6 26 0 503 0 0 342 0 0 645 2139 750 11120 862 1 1682 12588 13197 16273 27906 6455 80 3061 919 1818 1335 1156 1099 3 271 5968 9531 8316 37256 5433 48 6239 4007 1917 3911 3699 1019 8 587 9228 7342 12515 34882 4038 46 4633 127 36 128 110 20 0 4 10563 1536 7574 8438 513 26 443 124 7 121 451 4 0 48 21159 2632 20100 14411 1555 64 944 672 12 777 747 8 3 90 29 28 38 65 19 0 0 602 77 1020 2909 40 3 0 10791 8012 14636 40474 3774 54 3377 2525 829 4726 10568 551 25 259 2883 3849 4263 13323 2155 31 2607 7216 1844 7023 26278 933 23 1398 6323 3720 10249 16405 1815 92 434 119 0 114 126 0 0 11 7572 1004 9788 16631 330 48 205 17544 15072 26198 33336 10094 165 1938 7003 9724 10089 26590 5774 58 14074 6129 4966 8988 6203 1616 69 138 1141 56 1722 3241 24 10 4 2 0 3 4 0 0 0 18 0 19 32 0 0 26 3102 542 4587 14668 239 33 6376 9132 3350 15025 25832 1507 63 1708 3784 9958 5377 7187 6037 22 157 11361 3425 17636 34070 1298 106 1572 2074 323 3361 5393 45 30 498 40587 7306 35025 33225 2745 157 2317 752 53 1105 869 12 7 0 12 0 15 14 0 0 0 1192 139 1219 232 93 5 0 3709 443 3782 4697 147 18 8506 543 212 423 601 120 2 0 1636 369 1412 1331 74 6 5 Lo Till 108 943 268 20 121 4080 229 253 38 646 2491 136 1199 2154 189 611 442 171 852 270 105 59 696 951 134 1912 274 863 3397 597 31 61 5586 124 132 4426 13887 4907 2956 12256 2101 18 923 681 2355 867 0 0 16387 277 7359 10 16308 0 104 10 3948 13 38 835 19072 8086 10645 603 10361 30 9846 41241 6441 10387 1122 2 15 11438 20638 6834 19266 3393 25628 446 2 898 2588 259 1028 ------- Table 7. Hindcasted 1985 Phase 4.2 Chesapeake Bay Watershed Model Land Use in Acres by County Segment State County COSEG SEG FIPS Forest Hi Till PA BLAIR 100042013 100 42013 224435 23771 PA CENTRE 100042027 100 42027 32208 2924 PA FRANKLIN 100042055 100 42055 10920 1212 PA FULTON 100042057 100 42057 56140 2545 PA HUNTINGDON 100042061 100 42061 344617 19044 PA JUNIATA 100042067 100 42067 139064 24003 PA MIFFLIN 100042087 100 42087 149813 16829 PA PERRY 100042099 100 42099 71441 5583 PA SNYDER 100042109 100 42109 5907 354 MD CARROLL 110024013 110 24013 1256 376 PA ADAMS 110042001 110 42001 49759 13569 PA BERKS 110042011 110 42011 11856 6822 PA CUMBERLAND 110042041 110 42041 57931 6468 PA DAUPHIN 110042043 110 42043 26454 20848 PA LANCASTER 110042071 110 42071 8084 6518 PA LEBANON 110042075 110 42075 43857 39892 PA SCHUYLKILL 110042107 110 42107 55867 7634 PA YORK 110042133 110 42133 120952 37123 PA CHESTER 120042029 120 42029 2659 309 PA LANCASTER 120042071 120 42071 28137 22961 PA YORK 120042133 120 42133 10302 1827 MD CECIL 140024015 140 24015 3490 196 MD HARFORD 140024025 140 24025 14850 1670 PA LANCASTER 140042071 140 42071 12575 11122 PA YORK 140042133 140 42133 33810 10450 MD ALLEGANY 160024001 160 24001 115179 2475 MD GARRETT 160024023 160 24023 122205 3189 PA BEDFORD 160042009 160 42009 67836 2074 PA SOMERSET 160042111 160 42111 60434 2647 WV GRANT 160054023 160 54023 92910 1106 WV HAMPSHIRE 160054027 160 54027 7129 177 WV MINERAL 160054057 160 54057 154580 2567 WV PRESTON 160054077 160 54077 735 2 WV TUCKER 160054093 160 54093 493 0 VA HIGHLAND 170051091 170 51091 35434 258 WV GRANT 170054023 170 54023 89017 1176 WV HAMPSHIRE 170054027 170 54027 84045 1162 WV HARDY 170054031 170 54031 103469 4864 WV PENDLETON 170054071 170 54071 294915 4013 MD ALLEGANY 175024001 175 24001 86227 1529 MD WASHINGTON 175024043 175 24043 22622 368 PA BEDFORD 175042009 175 42009 83120 2551 PA FULTON 175042057 175 42057 12172 681 WV HAMPSHIRE 175054027 175 54027 205144 3018 WV HARDY 175054031 175 54031 147733 3952 WV MORGAN 175054065 175 54065 56056 486 MD FREDERICK 180024021 180 24021 31619 3021 MD WASHINGTON 180024043 180 24043 43237 7587 PA ADAMS 180042001 180 42001 4538 21 PA FRANKLIN 180042055 180 42055 21236 7205 VA LOUDOUN 180051107 180 51107 28739 1143 WV JEFFERSON 180054037 180 54037 4998 871 VA AUGUSTA 190051015 190 51015 181800 9220 VA PAGE 190051139 190 51139 111302 2299 VA ROCKINGHAM 190051165 190 51165 150271 10653 VA WARREN 190051187 190 51187 34960 213 VA HARRISONBURG CITY 190051660 190 51660 1014 0 VA STAUNTON CITY 190051790 190 51790 1718 0 VA WAYNESBORO CITY 190051820 190 51820 1256 0 VA CLARKE 200051043 200 51043 32227 2417 VA FREDERICK 200051069 200 51069 37213 1260 VA PAGE 200051139 200 51139 6009 1 VA ROCKINGHAM 200051165 200 51165 127341 7667 VA SHENANDOAH 200051171 200 51171 175679 13411 VA WARREN 200051187 200 51187 38661 458 VA HARRISONBURG CITY 200051660 200 51660 34 0 WV HARDY 200054031 200 54031 7360 139 WV JEFFERSON 200054037 200 54037 16595 1355 MD CARROLL 210024013 210 24013 29979 16971 MD FREDERICK 210024021 210 24021 111571 9743 MD MONTGOMERY 210024031 210 24031 8630 397 PA ADAMS 210042001 210 42001 24016 1756 DC DISTRICT OF COLUMBIA 220011001 220 11001 46 0 MD FREDERICK 220024021 220 24021 4873 707 MD MONTGOMERY 220024031 220 24031 58286 2902 VA ARLINGTON CITY 220051013 220 51013 36 0 VA FAIRFAX 220051059 220 51059 27104 284 VA FAUQUIER 220051061 220 51061 37932 1798 VA LOUDOUN 220051107 220 51107 87081 2951 VA ALBEMARLE 230051003 230 51003 2052 27 VA CULPEPER 230051047 230 51047 87887 7882 VA FAUQUIER 230051061 230 51061 80950 3089 VA GREENE 230051079 230 51079 21390 985 VA MADISON 230051113 230 51113 100342 9430 VA ORANGE 230051137 230 51137 54778 7768 Pervious Non-Ag. Impervious Pasture Urban Hay Herb. Urban Manure Acres Water 12814 19291 18819 15256 8236 120 1026 2182 144 2820 4803 36 14 11 916 73 1344 933 40 10 0 3692 773 3776 718 340 14 133 21668 4042 22099 27443 1708 102 1621 10216 1644 15422 29202 588 90 1680 16978 6812 17597 27585 2186 140 2288 4256 591 7003 12024 190 29 618 179 14 279 542 3 2 0 351 16 301 505 4 1 0 14012 3453 32738 20007 1527 68 1023 2612 792 4617 5068 412 26 5 5359 7317 7991 10436 4699 42 309 5668 18313 8153 20495 11244 37 6712 2568 2547 3322 2203 1583 59 3726 12636 13179 15802 20708 7104 181 1027 2944 3853 4179 5610 1870 14 164 22321 25868 26008 62830 13791 125 4707 412 0 498 468 0 2 0 8960 3451 11591 7543 2015 206 2787 1083 111 1262 3080 34 6 78 177 17 111 416 12 1 1426 3498 479 2057 4886 161 8 1704 4339 495 5613 3614 291 100 6694 6191 666 7213 17296 326 35 480 12190 15925 4662 9066 7497 8 920 9227 2413 4822 7279 1530 17 896 4432 587 3825 3664 289 17 415 4073 333 3175 4504 171 14 5 33516 3325 5323 15185 2078 12 1371 2307 210 781 943 185 1 30 31582 6051 9416 1194 3201 15 1107 31 122 13 40 81 0 0 9 26 3 9 17 0 0 17193 326 2346 7422 139 4 0 35668 2651 5664 16122 1337 12 487 15149 1501 5130 6221 854 7 1755 39431 1774 6223 8940 1028 28 142 104965 3376 13628 21355 1661 43 568 7532 620 2880 5653 393 5 1040 882 708 648 782 282 5 557 5455 0 4708 4509 0 21 0 993 21 1016 193 14 4 0 39317 2202 13315 16129 1157 17 1458 32035 1475 5056 7260 663 23 144 1249 1907 794 4292 918 1 1019 13345 1919 11249 8878 1121 74 1133 18526 9053 13598 15515 5988 81 1453 22 12 51 33 8 0 32 5559 3922 8140 5558 2253 54 12 19329 497 9649 5425 127 8 146 5480 965 3872 4773 268 11 113 155773 23127 38986 17141 6511 106 472 33896 13740 11227 11237 2286 22 1720 66919 21580 24873 11182 5823 154 1845 6651 2735 2695 4640 414 1 708 0 2591 0 3937 2026 0 5 0 4364 0 4791 1799 0 4 0 3102 0 2811 1830 0 18 28809 1076 12037 6018 480 15 926 14178 932 7752 14164 450 3 173 10 0 3 3 0 0 0 50582 10221 18801 8465 2988 116 229 63166 17027 23889 21386 4331 45 2144 15133 9519 6133 10610 2200 1 1061 0 544 0 714 418 0 0 1139 25 180 258 16 0 0 8983 4920 6348 8292 1179 18 1383 15595 2407 13380 22202 1188 60 190 42054 13558 35449 28376 7665 232 1602 2007 603 770 3113 269 3 5 1779 1300 4157 2678 723 9 72 0 802 0 0 502 0 25 3081 643 2597 2036 451 17 742 14799 27200 5676 24185 15073 24 5351 0 33 0 0 7 0 0 1583 23692 517 7641 12496 1 252 28237 4515 10302 5961 818 14 102 49159 10977 24541 14296 5944 20 1042 421 0 156 182 0 0 3 51498 11430 23773 40869 2375 33 909 48217 6919 17592 10134 1328 24 422 7296 1194 2581 5194 179 3 39 48612 8285 17138 14946 1087 31 160 26978 5444 11286 17307 1317 16 674 Lo Till 7546 2825 1548 2768 15035 9995 14208 9592 303 664 36983 5979 12684 5308 5009 13925 5390 71957 667 17260 3464 403 5386 8356 19804 1005 1370 2796 1942 521 158 1370 3 0 154 555 1038 791 1841 621 1028 3444 748 2692 642 196 18849 21709 57 9511 15931 8387 24888 7547 15459 543 0 0 0 7239 1978 2 12070 7457 1263 0 24 13821 29197 59174 4399 4663 0 4341 32463 0 462 7867 40473 20 18218 13415 777 6174 2555 ------- Table 7. Hindcasted 1985 Phase 4.2 Chesapeake Bay Watershed Model Land Use in Acres by County Segment State County COSEG SEG FIPS Forest Hi Till VA RAPPAHANNOCK 230051157 230 51157 94340 1175 VA SPOTSYLVANIA 230051177 230 51177 19076 920 VA STAFFORD 230051179 230 51179 17523 374 VA FREDERICKSBURG CITY 230051630 230 51630 216 0 VA CAROLINE 235051033 235 51033 24602 296 VA ORANGE 235051137 235 51137 1617 128 VA SPOTSYLVANIA 235051177 235 51177 87921 4649 VA CAROLINE 240051033 240 51033 123758 1756 VA KING AND QUEEN 240051097 240 51097 9600 1479 VA KING WILLIAM 240051101 240 51101 2946 424 VA SPOTSYLVANIA 240051177 240 51177 4709 300 VA LOUISA 250051109 250 51109 54919 1383 VA ORANGE 250051137 250 51137 35742 4819 VA SPOTSYLVANIA 250051177 250 51177 19404 1969 VA ALBEMARLE 260051003 260 51003 1778 119 VA CAROLINE 260051033 260 51033 22742 260 VA GOOCHLAND 260051075 260 51075 3235 92 VA HANOVER 260051085 260 51085 97465 8568 VA LOUISA 260051109 260 51109 132374 4005 VA ORANGE 260051137 260 51137 819 288 VA SPOTSYLVANIA 260051177 260 51177 20408 1102 VA ALLEGHANY 265051005 265 51005 7140 0 VA BATH 265051017 265 51017 114830 45 VA HIGHLAND 265051091 265 51091 54761 362 VA ALLEGHANY 270051005 270 51005 236080 0 VA AMHERST 270051009 270 51009 74203 235 VA AUGUSTA 270051015 270 51015 128670 1247 VA BATH 270051017 270 51017 171943 103 VA BEDFORD 270051019 270 51019 31062 152 VA BOTETOURT 270051023 270 51023 175869 674 VA CRAIG 270051045 270 51045 156254 321 VA GILES 270051071 270 51071 7517 0 VA HIGHLAND 270051091 270 51091 75929 311 VA MONTGOMERY 270051121 270 51121 13871 12 VA ROANOKE 270051161 270 51161 10320 212 VA ROCKBRIDGE 270051163 270 51163 236225 0 VA BUENA VISTA CITY 270051530 270 51530 1808 0 VA CLIFTON FORGE CITY 270051560 270 51560 687 0 VA COVINGTON CITY 270051580 270 51580 432 0 VA LEXINGTON CITY 270051678 270 51678 75 0 WV MONROE 270054063 270 54063 41519 323 WV PENDLETON 270054071 270 54071 925 22 VA ALBEMARLE 280051003 280 51003 267143 5409 VA AMHERST 280051009 280 51009 131932 1084 VA APPOMATTOX 280051011 280 51011 53975 2501 VA BEDFORD 280051019 280 51019 17425 125 VA BUCKINGHAM 280051029 280 51029 231071 1985 VA CAMPBELL 280051031 280 51031 26989 1046 VA CUMBERLAND 280051049 280 51049 57314 386 VA FLUVANNA 280051065 280 51065 106046 739 VA GOOCHLAND 280051075 280 51075 21166 1271 VA GREENE 280051079 280 51079 33124 1404 VA LOUISA 280051109 280 51109 6536 162 VA NELSON 280051125 280 51125 213744 1584 VA ORANGE 280051137 280 51137 3138 290 VA CHARLOTTESVILLE CITY 280051540 280 51540 162 0 VA LYNCHBURG CITY 280051680 280 51680 12914 0 VA CHESTERFIELD 290051041 290 51041 6023 142 VA CUMBERLAND 290051049 290 51049 18476 156 VA GOOCHLAND 290051075 290 51075 73661 4180 VA HENRICO 290051087 290 51087 6537 300 VA POWHATAN 290051145 290 51145 71426 4277 VA RICHMOND CITY 290051760 290 51760 680 0 VA AMELIA 300051007 300 51007 116537 10925 VA APPOMATTOX 300051011 300 51011 41622 1287 VA BUCKINGHAM 300051029 300 51029 14711 121 VA CHESTERFIELD 300051041 300 51041 25753 557 VA CUMBERLAND 300051049 300 51049 32871 347 VA NOTTOWAY 300051135 300 51135 56051 1294 VA POWHATAN 300051145 300 51145 22522 1634 VA PRINCE EDWARD 300051147 300 51147 124066 8369 VA AMELIA 310051007 310 51007 9298 419 VA CHESTERFIELD 310051041 310 51041 23658 454 VA DINWIDDIE 310051053 310 51053 28402 6019 VA NOTTOWAY 310051135 310 51135 4360 84 MD HOWARD 330024027 330 24027 17979 2584 MD MONTGOMERY 330024031 330 24031 16107 723 MD ANNE ARUNDEL 340024003 340 24003 20261 541 MD HOWARD 340024027 340 24027 25890 2950 MD PRINCE GEORGES 340024033 340 24033 9763 904 DE NEW CASTLE 370010003 370 10003 671 1526 MD CECIL 370024015 370 24015 10427 4050 DE KENT 380010001 380 10001 8300 2224 DE NEW CASTLE 380010003 380 10003 4262 765 MD CAROLINE 380024011 380 24011 6 7 Pervious Non-Ag. Impervious Pasture Urban Hay Herb. Urban Manure Acres Water 36677 4927 15858 14319 776 1 122 1386 505 757 3394 189 1 364 1228 719 589 3206 157 0 410 0 2 0 156 2 0 21 822 818 304 5572 196 1 94 446 1 186 286 1 0 0 7011 1904 3831 17115 500 7 882 4862 4480 1800 32892 1386 4 987 184 106 56 1749 13 1 13 128 4 40 263 3 0 21 452 81 247 1097 11 0 12 7317 2452 3434 14256 770 3 8481 16740 1991 7003 10710 300 10 373 2968 255 1621 7146 158 3 5291 1844 18 682 771 12 0 10 719 795 266 4882 270 1 151 293 186 116 651 123 0 7 14066 5199 6690 21040 1157 13 728 21199 5039 9950 41233 1350 9 945 1000 432 418 642 102 1 18 1661 199 907 4040 34 2 7 1 0 0 1 0 0 502 6278 1271 2073 5266 647 0 2114 24069 735 3283 10399 259 1 0 14515 6904 3244 14064 2605 1 1136 9640 608 1734 2249 373 0 826 21289 2367 5328 2402 926 15 63 14606 3839 4824 12172 1001 0 506 2828 795 872 1858 346 1 448 79681 11243 10957 18225 3968 14 1927 14283 671 3682 7038 234 1 19 12 0 2 7 0 0 0 20801 415 2838 9038 162 1 0 261 8 67 155 6 0 0 3124 128 1126 1586 34 2 0 91074 15520 21083 6594 6355 13 2042 0 1026 0 661 790 0 102 0 693 0 24 537 0 48 0 1203 0 185 858 0 170 0 890 0 72 553 0 8 4101 89 785 2551 24 1 0 572 0 74 115 0 0 0 83748 21439 30989 36351 5689 15 2660 44133 12931 7938 10208 4538 2 1874 13863 2301 4589 10222 719 5 590 2308 4364 712 1586 2691 1 352 27041 5724 10746 63979 1568 8 2690 3510 5605 1060 2622 2940 1 318 10062 1747 3467 16445 501 8 469 24193 6563 10007 31061 1755 2 2717 4061 525 1608 8893 169 2 689 10414 3142 3684 7470 451 4 168 856 631 402 1672 123 0 39 38465 8373 11966 24247 1625 4 1565 1006 417 421 652 48 1 3 0 3900 0 303 2201 0 11 0 10149 0 1772 6835 0 224 147 1458 60 1213 595 0 64 4045 532 1394 6603 186 3 65 13309 4522 5269 29265 1448 6 3526 441 6957 143 1834 3967 0 630 12427 2968 6181 20022 1000 16 1200 0 856 0 123 284 0 60 18882 2307 6301 46724 922 28 950 7128 1954 2360 5245 649 3 118 1644 95 653 3888 46 1 82 577 200 236 4500 127 0 298 9024 1316 3109 14713 331 7 419 15216 2635 4916 11713 1099 12 466 4758 309 2366 7590 103 6 244 25111 6891 9579 33340 2434 18 1688 725 17 242 1819 11 1 540 471 508 192 3686 189 0 1611 2796 339 641 3468 192 4 1344 995 26 321 765 18 1 27 4774 1111 2837 7550 364 9 820 3661 2156 1404 5729 820 6 634 717 8205 454 2176 4538 1 26 5427 13491 3225 9835 7824 10 188 498 8366 185 1038 4840 0 90 318 34 321 1125 13 1 16 3662 580 2290 8194 201 13 596 376 349 270 2323 45 3 0 160 0 161 655 0 1 0 0 0 0 2 0 0 0 Lo Till 2780 405 794 0 3154 42 2051 18659 988 404 132 1908 1586 867 86 2761 124 17369 5530 95 485 0 478 216 793 490 3414 1113 302 3802 883 1 188 24 208 6877 0 0 0 0 294 10 3896 2237 1595 246 7684 424 3516 2888 1724 1111 223 2620 95 0 0 48 1412 5636 1029 2898 0 12555 820 467 189 3153 6238 1113 5326 483 154 287 408 6955 8024 1279 7893 63 2998 8331 5411 1505 5 ------- Table 7. Hindcasted 1985 Phase 4.2 Chesapeake Bay Watershed Model Land Use in Acres by County Segment State County COSEG SEG FIPS Forest Hi Till MD KENT 380024029 380 24029 24052 17989 MD QUEEN ANNES 380024035 380 24035 35149 22140 MD QUEEN ANNES 390024035 390 24035 7317 5249 MD TALBOT 390024041 390 24041 4683 5012 DE KENT 400010001 400 10001 4964 1970 MD CAROLINE 400024011 400 24011 42104 42060 MD DORCHESTER 400024019 400 24019 6009 5548 MD QUEEN ANNES 400024035 400 24035 11979 8748 MD TALBOT 400024041 400 24041 20213 17316 DE KENT 410010001 410 10001 13559 5004 DE SUSSEX 410010005 410 10005 90566 23946 MD CAROLINE 410024011 410 24011 14393 10377 MD DORCHESTER 410024019 410 24019 26124 9876 MD WICOMICO 410024045 410 24045 38310 16144 DE SUSSEX 420010005 420 10005 266 164 MD SOMERSET 420024039 420 24039 21887 2339 MD WICOMICO 420024045 420 24045 39956 21124 MD WORCESTER 420024047 420 24047 23 6 DE SUSSEX 430010005 430 10005 10954 2108 MD SOMERSET 430024039 430 24039 104308 10481 MD WICOMICO 430024045 430 24045 28151 16518 MD WORCESTER 430024047 430 24047 108833 9461 VA ACCOMACK 430051001 430 51001 10518 4031 VA ACCOMACK 440051001 440 51001 67477 25320 VA NORTHAMPTON 440051131 440 51131 15285 15898 MD BALTIMORE 450024005 450 24005 2542 664 MD CECIL 450024015 450 24015 14787 2435 MD HARFORD 450024025 450 24025 40411 4804 PA CHESTER 450042029 450 42029 17991 3261 PA LANCASTER 450042071 450 42071 14185 18088 PA YORK 450042133 450 42133 3711 2232 MD BALTIMORE 470024005 470 24005 107339 13383 MD CARROLL 470024013 470 24013 6505 2474 MD HARFORD 470024025 470 24025 11137 1071 PA YORK 470042133 470 42133 1043 804 MD BALTIMORE 480024005 480 24005 13411 1225 MD BALTIMORE CITY 480024510 480 24510 723 0 MD ANNE ARUNDEL 490024003 490 24003 15903 470 MD BALTIMORE 490024005 490 24005 4563 105 MD HOWARD 490024027 490 24027 9669 373 MD BALTIMORE CITY 490024510 490 24510 53 0 MD ANNE ARUNDEL 500024003 500 24003 16584 1978 MD CALVERT 500024009 500 24009 51704 10354 MD CHARLES 500024017 500 24017 11388 1442 MD PRINCE GEORGES 500024033 500 24033 52925 15872 MD ST MARYS 500024037 500 24037 24601 2546 MD ANNE ARUNDEL 510024003 510 24003 17757 475 DC DISTRICT OF COLUMBIA 540011001 540 11001 364 0 MD MONTGOMERY 540024031 540 24031 10304 185 MD PRINCE GEORGES 540024033 540 24033 9785 1255 VA FAIRFAX 550051059 550 51059 31069 425 VA FAUQUIER 550051061 550 51061 50618 2186 VA LOUDOUN 550051107 550 51107 6683 167 VA PRINCE WLLIAM 550051153 550 51153 69592 1327 VA MANASSAS CITY 550051683 550 51683 323 0 VA MANASSAS PARK CITY 550051685 550 51685 256 0 VA CAROLINE 560051033 560 51033 55615 491 VA ESSEX 560051057 560 51057 86153 25817 VA KING GEORGE 560051099 560 51099 21369 3960 VA LANCASTER 560051103 560 51103 46919 9583 VA MIDDLESEX 560051119 560 51119 27367 7857 VA NORTHUMBERLAND 560051133 560 51133 632 527 VA RICHMOND 560051159 560 51159 75179 24110 VA SPOTSYLVANIA 560051177 560 51177 17736 1565 VA STAFFORD 560051179 560 51179 9688 592 VA WESTMORELAND 560051193 560 51193 22571 9285 VA FREDERICKSBURG CITY 560051630 560 51630 1628 0 VA LANCASTER 580051103 580 51103 217 144 VA NORTHUMBERLAND 580051133 580 51133 26919 5308 VA RICHMOND 580051159 580 51159 77 46 VA CAROLINE 590051033 590 51033 5096 63 VA GLOUCESTER 590051073 590 51073 26426 5262 VA HANOVER 590051085 590 51085 46649 3654 VA JAMES CITY 590051095 590 51095 14440 657 VA KING AND QUEEN 590051097 590 51097 93600 15396 VA KING WILLIAM 590051101 590 51101 111389 18994 VA NEW KENT 590051127 590 51127 46179 2229 VA YORK 590051199 590 51199 24506 533 VA WLLIAMSBURG CITY 590051830 590 51830 379 0 VA CHARLES CITY 600051036 600 51036 74992 6756 VA CHESTERFIELD 600051041 600 51041 118080 3218 VA DINWIDDIE 600051053 600 51053 1267 909 VA HENRICO 600051087 600 51087 21679 1764 VA ISLE OF WIGHT 600051093 600 51093 29649 10550 VA JAMES CITY 600051095 600 51095 43974 1822 Pervious Non-Ag. Impervious Pasture Urban Hay Herb. Urban Manure Acres Water 3274 1952 2817 8024 623 30 1317 3603 2295 1818 8457 682 20 724 853 1243 430 2039 307 5 475 573 502 289 1743 78 3 410 333 109 239 2044 12 2 0 2948 4499 1967 15650 1071 31 563 463 2613 153 6591 1139 6 474 1423 271 718 3330 50 8 9 1982 2039 998 6067 438 10 724 851 201 610 5226 39 6 0 4094 8340 1801 27953 2901 56 1146 730 1301 487 3885 525 8 48 828 1056 274 11824 373 11 748 1375 2237 303 10997 606 17 601 28 238 12 201 147 0 0 416 1517 251 4593 226 7 666 1803 10041 398 14579 4934 22 641 2 0 1 11 0 0 0 361 86 159 2461 10 5 0 1856 5192 1120 20503 1186 33 3015 1408 1688 311 11189 327 17 17 3263 2679 787 16340 896 43 507 189 536 46 1674 81 1 38 1183 4877 289 10479 927 7 2205 1398 3557 179 8153 1415 0 1792 880 48 451 1527 15 2 0 2199 2234 1375 5117 1064 8 1134 10045 1952 5908 14039 807 24 892 4331 963 5238 4836 465 25 331 7050 928 9121 5791 412 162 437 1321 757 1539 3612 369 7 20 17751 22321 9097 31954 12787 31 4468 2277 557 1954 3284 205 9 0 2241 4346 1318 3284 1805 5 359 476 119 555 1284 43 3 0 1625 20459 833 3089 10757 3 69 0 14141 0 98 20957 0 217 626 17171 396 2068 12713 0 827 139 7388 71 275 4701 0 172 689 3616 409 1273 2048 1 27 0 764 0 38 1712 0 60 2631 5082 1665 7896 1112 2 660 5278 15619 1598 6119 2671 1 1569 563 2180 214 1549 426 1 36 8754 24931 3249 17119 9092 6 583 1322 7417 523 2214 1779 3 482 633 12960 401 1985 7075 0 953 0 7756 0 182 9619 0 299 877 15040 336 1856 7836 1 5 689 24030 256 1607 16570 0 63 2363 15654 772 10388 6571 1 734 34152 14618 12460 7433 3647 17 580 2758 1446 1377 828 646 1 16 13894 29550 8242 27610 10866 13 1765 0 2077 0 2609 1410 0 0 0 437 0 211 268 0 0 1358 2557 503 9251 699 1 398 2695 2116 787 14692 674 7 967 4592 828 1534 3390 257 0 302 1006 2492 100 8692 413 2 1414 833 2109 568 7489 335 3 988 33 59 8 219 17 0 0 1384 3408 934 13407 569 4 992 2357 3674 1288 6017 1917 2 254 1944 3905 932 5279 1606 1 207 1080 1391 410 3447 182 1 234 0 2384 0 901 1366 0 83 15 25 2 127 3 0 0 333 1883 76 2200 256 1 734 3 0 2 25 0 0 0 175 325 65 1190 46 0 0 871 2187 371 8690 1446 1 807 6000 7877 2854 9126 2140 5 1044 321 826 291 3228 571 1 81 1917 1298 586 18218 350 7 1045 5749 1515 1806 11804 500 10 2426 1079 489 305 7139 236 1 1242 328 6432 240 4483 3233 1 1124 0 680 0 42 401 0 1 1432 921 601 12341 346 2 1800 3331 29307 1361 27563 15631 1 4278 422 1976 97 480 1811 1 86 2605 9125 848 10210 3966 1 1364 2769 5896 168 6504 2671 15 956 890 6137 808 9174 3633 2 2397 Lo Till 43770 49593 11730 7661 4787 34602 8067 19572 26499 12261 71375 8607 14477 5195 493 5284 6855 27 6309 23572 5337 40879 2075 12876 16289 1075 4998 15461 7017 13561 4221 21694 4268 3451 1523 1987 0 1119 169 1004 0 4698 5918 296 1119 2210 1131 0 1910 82 688 9505 2269 10395 0 0 5210 15164 4824 2494 626 191 2433 688 1256 2390 0 38 1925 5 673 1727 7410 1060 10283 18099 4499 195 0 6753 1089 43 6087 8455 2937 ------- Table 7. Hindcasted 1985 Phase 4.2 Chesapeake Bay Watershed Model Land Use in Acres by County Segment Pervious Non-Ag. Impervious State County COSEG SEG FIPS Forest Hi Till Lo Till Pasture Urban Hay Herb. Urban Manure Acres Water VA NEW KENT 600051127 600 51127 36602 1295 2612 627 1093 177 4168 642 0 1827 VA POWHATAN 600051145 600 51145 2980 165 113 481 207 239 779 44 1 9 VA PRINCE GEORGE 600051149 600 51149 39049 13959 4413 4947 2975 947 8485 1733 4 1267 VA SURRY 600051181 600 51181 40205 5503 11187 2478 3167 227 5893 688 9 1026 VA YORK 600051199 600 51199 5259 64 23 39 1141 29 539 504 0 22 VA COLONIAL HEIGHTS CITY 600051570 600 51570 956 0 0 0 1815 0 670 1254 0 201 VA HAMPTON CITY 600051650 600 51650 267 0 0 0 3694 0 222 2571 0 162 VA HOPEWELL CITY 600051670 600 51670 1035 0 0 0 2987 0 367 2159 0 90 VA NEWPORT NEWS CITY 600051700 600 51700 11430 0 0 0 13760 0 2456 11031 0 1270 VA PETERSBURG CITY 600051730 600 51730 1925 0 0 0 3894 0 1121 2630 0 152 VA RICHMOND CITY 600051760 600 51760 2076 0 0 0 19626 0 1221 13312 0 1169 VA SUFFOLK 600051800 600 51800 2817 824 1490 186 1579 39 785 573 1 362 VA WLLIAMSBURG CITY 600051830 600 51830 2157 0 0 0 1094 0 156 591 0 57 VA CHARLES CITY 610051036 610 51036 8322 770 762 162 90 68 1399 76 0 57 VA HANOVER 610051085 610 51085 20875 1619 3246 2638 7672 1255 4122 2543 2 238 VA HENRICO 610051087 610 51087 28879 1075 3672 1575 20706 513 6413 10961 0 389 VA NEW KENT 610051127 610 51127 16122 762 1521 366 1131 104 2439 568 0 364 VA ISLE OF WIGHT 620051093 620 51093 13619 6854 5489 1798 1262 109 4146 447 10 824 VA PORTSMOUTH CITY 620051740 620 51740 677 0 0 0 2711 0 651 1880 0 664 VA SUFFOLK 620051800 620 51800 38316 8528 15416 1921 12285 407 8044 6028 10 4717 VA CHESAPEAKE CITY 630051550 630 51550 4344 538 644 40 3632 29 426 2098 0 169 VA PORTSMOUTH CITY 630051740 630 51740 265 0 0 0 3415 0 164 2312 0 314 MD BALTIMORE 650024005 650 24005 9148 874 1420 1161 848 595 2100 367 2 1144 MD CARROLL 650024013 650 24013 30494 8527 14744 7861 3923 6744 11509 1856 30 1441 PA BRADFORD 700042015 700 42015 82020 13198 299 15353 3126 17766 16911 1869 72 1815 PA TIOGA 700042117 700 42117 1168 209 79 424 32 403 282 22 1 35 PA LANCASTER 710042071 710 42071 11531 22445 16874 8759 4554 11331 7220 2841 201 7924 PA LEBANON 710042075 710 42075 5044 204 70 64 116 80 112 61 1 0 PA YORK 710042133 710 42133 18583 5433 10303 3220 3365 3752 9074 1711 18 139 PA BERKS 720042011 720 42011 11812 1537 1317 582 631 1029 1183 476 6 61 PA CHESTER 720042029 720 42029 947 36 78 48 46 58 57 45 0 0 PA LANCASTER 720042071 720 42071 49221 57839 43447 22563 27981 29189 19472 18168 519 1822 PA LEBANON 720042075 720 42075 6789 2642 902 832 258 1041 1401 109 12 25 MD WASHINGTON 730024043 730 24043 233 162 453 389 11 285 295 7 2 103 PA ADAMS 730042001 730 42001 14156 63 167 64 112 149 98 75 0 251 PA FRANKLIN 730042055 730 42055 112155 35041 45209 26690 12075 39078 26676 6425 257 757 MD WASHINGTON 740024043 740 24043 48052 6542 19955 16757 6707 12299 14141 4243 73 4055 PA FRANKLIN 740042055 740 42055 18221 903 1270 723 16 1058 739 11 7 0 PA FULTON 740042057 740 42057 123769 8117 9732 12412 1099 12686 2402 470 38 214 VA CLARKE 740051043 740 51043 2845 860 2595 10310 77 4308 1836 41 5 19 VA FREDERICK 740051069 740 51069 80903 3126 4939 35317 5886 19308 35387 2823 7 521 VA WNCHESTER CITY 740051840 740 51840 323 0 0 0 2764 0 1420 1471 0 0 WV BERKELEY 740054003 740 54003 91223 5372 11088 26404 7720 22477 37622 3439 26 625 WV JEFFERSON 740054037 740 54037 8220 1171 12023 7810 1043 5519 6850 199 15 58 WV MORGAN 740054065 740 54065 53647 1720 757 4537 730 2881 15519 354 1 87 MD CARROLL 750024013 750 24013 1250 957 1658 883 39 758 1238 11 3 178 MD FREDERICK 750024021 750 24021 1773 292 1786 1268 22 1069 818 11 7 69 PA ADAMS 750042001 750 42001 32129 7120 19037 7250 3819 16939 10524 2287 35 476 MD BALTIMORE 760024005 760 24005 8355 853 1287 1083 1825 555 1966 894 2 34 MD CARROLL 760024013 760 24013 13876 3972 6376 3495 2164 2999 5135 905 13 299 MD HOWARD 760024027 760 24027 9862 1129 2830 1982 818 1178 3200 381 4 49 DE KENT 770010001 770 10001 21782 5761 13997 974 1032 698 6013 116 7 42 MD CAROLINE 770024011 770 24011 7162 4970 4087 348 554 232 1850 63 4 14 MD QUEEN ANNES 770024035 770 24035 841 277 619 45 31 23 104 3 0 0 DE KENT 780010001 780 10001 3162 936 2274 158 196 113 977 33 1 0 DE SUSSEX 780010005 780 10005 13051 4321 12765 734 1320 323 4996 322 10 0 DE NEW CASTLE 800010003 800 10003 2774 1527 3000 319 358 321 1247 78 1 107 MD CECIL 800024015 800 24015 58009 7522 15472 6801 10515 4253 15970 3795 24 861 PA CHESTER 800042029 800 42029 11437 3598 7646 4737 1298 5730 5112 506 28 406 DE NEW CASTLE 810010003 810 10003 1131 850 1667 177 35 179 677 10 1 0 MD CECIL 810024015 810 24015 4373 1893 3886 1710 192 1069 3806 80 6 257 MD KENT 810024029 810 24029 21815 1040 40192 2186 1356 1881 5337 498 20 1522 MD QUEEN ANNES 820024035 820 24035 10049 4640 10375 754 4412 380 1880 1743 4 1865 MD TALBOT 830024041 830 24041 20723 13334 20392 1526 8015 768 4841 2688 8 3009 MD DORCHESTER 840024019 840 24019 158074 24375 35418 2033 5149 672 29059 1372 26 12650 MD SOMERSET 840024039 840 24039 2 2 3 0 1 0 3 0 0 12 MD HARFORD 850024025 850 24025 56097 4018 12957 8414 17817 4949 12353 8243 20 772 MD BALTIMORE 860024005 860 24005 4007 338 549 449 13739 230 951 13486 1 743 MD BALTIMORE CITY 860024510 860 24510 265 0 0 0 6693 0 -198 6433 0 67 MD ANNE ARUNDEL 870024003 870 24003 7238 210 500 280 8398 177 917 4404 0 587 MD ANNE ARUNDEL 880024003 880 24003 33107 1629 3884 2172 12480 1375 6562 5853 2 1292 MD CALVERT 880024009 880 24009 25754 1719 987 878 5097 266 1025 1194 0 163 DC DISTRICT OF COLUMBIA 890011001 890 11001 1685 0 0 0 7029 0 72 7343 0 220 MD MONTGOMERY 890024031 890 24031 8856 271 2984 1362 13708 522 2826 8653 2 140 DC DISTRICT OF COLUMBIA 900011001 900 11001 4 0 0 0 46 0 61 46 0 50 VA ARLINGTON CITY 900051013 900 51013 814 0 0 0 8371 0 794 6558 0 68 VA FAIRFAX 900051059 900 51059 25466 239 387 1328 50485 434 8187 23888 1 847 VA ALEXANDRIA CITY 900051510 900 51510 365 0 0 0 4376 0 365 4554 0 25 VA FAIRFAX CITY 900051600 900 51600 212 0 0 0 2224 0 49 1512 0 0 VA FALLS CHURCH CITY 900051610 900 51610 25 0 0 0 672 0 3 571 0 0 DC DISTRICT OF COLUMBIA 910011001 910 11001 69 0 0 0 1897 0 25 1431 0 36 MD CHARLES 910024017 910 24017 41895 2905 595 1133 11343 432 3226 3711 1 665 MD PRINCE GEORGES 910024033 910 24033 33223 5645 397 3113 30642 1156 6365 12512 2 248 MD CHARLES 920024017 920 24017 124232 21024 4334 8212 20544 3127 22337 5283 9 1551 MD PRINCE GEORGES 920024033 920 24033 2711 420 30 232 606 86 456 114 0 0 53 ------- Table 7. Hindcasted 1985 Phase 4.2 Chesapeake Bay Watershed Model Land Use in Acres by County Segment State County COSEG SEG FIPS Forest Hi Till MD ST MARYS 920024037 920 24037 88203 17223 VA LANCASTER 930051103 930 51103 6360 1874 VA NORTHUMBERLAND 930051133 930 51133 10313 3655 VA ESSEX 940051057 940 51057 9091 3181 VA GLOUCESTER 940051073 940 51073 60272 7990 VA KING AND QUEEN 940051097 940 51097 34033 3861 VA MATHEWS 940051115 940 51115 31049 4885 VA MIDDLESEX 940051119 940 51119 24380 4706 VA YORK 950051199 950 51199 7286 198 VA POQUOSON CITY 950051735 950 51735 3033 0 VA YORK 955051199 955 51199 1671 26 VA HAMPTON CITY 955051650 955 51650 5996 0 VA NEWPORT NEWS CITY 955051700 955 51700 340 0 VA POQUOSON CITY 955051735 955 51735 2155 0 VA NORTHAMPTON 960051131 960 51131 0 0 VA CHESAPEAKE CITY 960051550 960 51550 13222 2832 VA HAMPTON CITY 960051650 960 51650 1 0 VA NORFOLK CITY 960051710 960 51710 525 0 VA PORTSMOUTH CITY 960051740 960 51740 171 0 VA VIRGINIA BEACH 960051810 960 51810 1910 0 VA NORFOLK CITY 965051710 965 51710 364 0 VA VIRGINIA BEACH 965051810 965 51810 12332 0 VA PRINCE WLLIAM 970051153 970 51153 27439 63 VA FAUQUIER 980051061 980 51061 1988 14 VA KING GEORGE 980051099 980 51099 51830 3282 VA NORTHUMBERLAND 980051133 980 51133 32016 15489 VA PRINCE WLLIAM 980051153 980 51153 7453 14 VA RICHMOND 980051159 980 51159 23 87 VA STAFFORD 980051179 980 51179 83522 1355 VA WESTMORELAND 980051193 980 51193 58223 21964 MD ST MARYS 990024037 990 24037 7609 1177 22965595 2445596 Pervious Non-Ag. Impervious Pasture Urban Hay Herb. Urban Manure Acres Water 8960 17319 3546 14586 3737 22 2760 197 778 20 1694 138 0 561 229 458 52 1514 84 0 522 332 63 97 1798 38 1 50 1323 3681 563 13181 1664 2 1364 481 49 147 4554 33 2 24 1196 2539 329 11589 971 1 1836 499 558 340 4504 111 2 265 122 3828 89 1720 2584 0 554 0 1099 0 1152 661 0 395 16 866 12 228 661 0 95 0 9981 0 2374 7332 0 596 0 2167 0 123 1617 0 66 0 617 0 449 403 0 54 0 2 0 0 8 0 5 198 12908 142 2183 9201 1 999 0 11 0 0 13 0 3 0 12634 0 306 12040 0 749 0 4399 0 121 3695 0 141 8 3569 2 137 2781 0 397 0 4049 0 310 3219 0 538 91 17807 23 1088 12266 0 2223 714 3883 424 1442 1842 1 239 216 154 79 46 29 0 0 3798 5123 1268 2844 1111 0 755 969 1785 222 6410 316 2 1478 144 549 85 285 225 0 288 5 31 3 47 5 0 0 4435 12467 2127 11935 3687 1 1285 2552 6052 970 8179 1337 3 1835 612 3209 242 1038 1162 2 635 3598986 2122906 2173009 3929173 1033253 9344 423311 Lo Till 15024 489 1326 1874 2623 2579 504 376 72 0 10 0 0 0 0 2977 0 0 0 171 0 1974 540 60 3981 5583 107 9 2863 5630 1025 2411226 ------- Table 8. Forecasted 1998 Phase 4.2 Chesapeake Bay Watershed State County COSEG SEG FIPS Forest Hi Till NY ALLEGANY 10036003 10 36003 36426 3257 NY CHEMUNG 10036015 10 36015 101865 13439 NY LIVINGSTON 10036051 10 36051 4508 2321 NY ONTARIO 10036069 10 36069 436 102 NY SCHUYLER 10036097 10 36097 36231 2098 NY STEUBEN 10036101 10 36101 480110 66910 NY YATES 10036123 10 36123 2988 1064 PA BRADFORD 10042015 10 42015 55102 11088 PA POTTER 10042105 10 42105 18158 3127 PA TIOGA 10042117 10 42117 268672 21839 NY BROOME 20036007 20 36007 193066 18864 NY CHEMUNG 20036015 20 36015 22302 2053 NY CHENANGO 20036017 20 36017 358644 38972 NY CORTLAND 20036023 20 36023 162604 25399 NY DELAWARE 20036025 20 36025 115009 7167 NY HERKIMER 20036043 20 36043 21114 4213 NY MADISON 20036053 20 36053 126644 19322 NY ONEIDA 20036065 20 36065 19114 2226 NY ONONDAGA 20036067 20 36067 20980 5346 NY OTSEGO 20036077 20 36077 356213 40840 NY SCHOHARIE 20036095 20 36095 17574 1433 NY SCHUYLER 20036097 20 36097 18356 1084 NY TIOGA 20036107 20 36107 162106 26838 NY TOMPKINS 20036109 20 36109 45952 4897 PA BRADFORD 20042015 20 42015 30483 6253 PA SUSQUEHANNA 20042115 20 42115 127120 5919 PA WAYNE 20042127 20 42127 14450 317 PA BRADFORD 30042015 30 42015 223781 36324 PA LACKAWANNA 30042069 30 42069 149916 3353 PA LUZERNE 30042079 30 42079 62117 2187 PA LYCOMING 30042081 30 42081 971 42 PA SULLIVAN 30042113 30 42113 13739 374 PA SUSQUEHANNA 30042115 30 42115 182326 16053 PA TIOGA 30042117 30 42117 3176 335 PA WAYNE 30042127 30 42127 14730 144 PA WYOMING 30042131 30 42131 166465 9018 PA COLUMBIA 40042037 40 42037 151589 38725 PA LUZERNE 40042079 40 42079 259309 17980 PA MONTOUR 40042093 40 42093 10121 2901 PA NORTHUMBERLAND 40042097 40 42097 69214 12808 PA SCHUYLKILL 40042107 40 42107 39087 3811 PA SULLIVAN 40042113 40 42113 28030 109 PA CAMBRIA 50042021 50 42021 138607 10130 PA CENTRE 50042027 50 42027 105492 612 PA CLEARFIELD 50042033 50 42033 463648 9194 PA INDIANA 50042063 50 42063 28656 1844 PA JEFFERSON 50042065 50 42065 17 0 PA CAMERON 60042023 60 42023 237451 285 PA CENTRE 60042027 60 42027 283054 14741 PA CLEARFIELD 60042033 60 42033 110448 1082 PA CLINTON 60042035 60 42035 484358 6352 PA ELK 60042047 60 42047 156169 2558 PA LYCOMING 60042081 60 42081 390163 22156 PA MCKEAN 60042083 60 42083 15113 58 PA POTTER 60042105 60 42105 370957 8319 PA SULLIVAN 60042113 60 42113 2813 64 PA TIOGA 60042117 60 42117 235765 10636 PA BRADFORD 70042015 70 42015 6095 552 PA CENTRE 70042027 70 42027 9040 34 PA COLUMBIA 70042037 70 42037 5084 2330 PA LYCOMING 70042081 70 42081 201928 25911 PA MONTOUR 70042093 70 42093 13157 7934 PA NORTHUMBERLAND 70042097 70 42097 17036 11124 PA SULLIVAN 70042113 70 42113 190976 3724 PA UNION 70042119 70 42119 81592 22749 PA WYOMING 70042131 70 42131 3124 61 PA CENTRE 80042027 80 42027 93343 8867 PA CUMBERLAND 80042041 80 42041 76102 23392 PA DAUPHIN 80042043 80 42043 135078 12545 PA FRANKLIN 80042055 80 42055 42098 6271 PA JUNIATA 80042067 80 42067 10017 2477 PA LEBANON 80042075 80 42075 9594 6 PA MIFFLIN 80042087 80 42087 10182 21 PA NORTHUMBERLAND 80042097 80 42097 42128 11967 PA PERRY 80042099 80 42099 152112 12715 PA SCHUYLKILL 80042107 80 42107 67732 12416 PA SNYDER 80042109 80 42109 92238 16553 PA UNION 80042119 80 42119 35058 7461 PA BEDFORD 90042009 90 42009 286723 23444 PA BLAIR 90042013 90 42013 3210 1052 PA CAMBRIA 90042021 90 42021 1 21 PA FULTON 90042057 90 42057 18662 1086 PA HUNTINGDON 90042061 90 42061 86511 2786 PA SOMERSET 90042111 90 42111 15016 372 Land Use in Acres by County Segment Pervious Non-Ag. Impervious Manure Pasture Urban Hay Herb. Urban Acres Water 2810 2163 2757 4343 1145 11 5 12417 16386 11180 39785 7846 29 1587 539 0 521 1773 0 4 0 22 0 32 65 0 0 0 2759 1409 2872 3680 754 7 1976 48179 28264 61528 78899 15829 160 3381 331 47 773 819 10 2 28 9695 2296 15430 15777 1057 55 931 2511 235 2675 3302 120 8 103 31001 8586 44793 31311 4544 117 3120 18328 35404 19657 93362 19206 70 5802 1897 464 1708 6078 243 4 23 42983 11487 44513 67788 4872 205 3433 21274 7360 18627 40335 2364 109 1608 19314 3351 16626 22780 1832 52 864 5439 1376 5620 12283 685 29 254 12423 2664 15819 24503 571 79 1672 1812 292 2075 4652 151 10 116 1260 715 1924 3432 108 13 423 55824 12503 54726 91103 5019 203 8823 1403 179 2080 3030 89 6 125 1425 403 1484 1913 237 4 360 21978 14368 21343 75335 6137 100 2781 1731 597 2161 3659 263 11 122 5467 1582 8701 8897 1081 31 618 11941 4250 12802 23069 2465 44 3150 1353 57 1594 1878 24 4 338 31759 4234 50546 51435 2357 181 5328 5456 42642 8690 14128 21233 20 3561 695 14195 1300 5119 11161 2 1823 14 0 24 67 0 0 0 383 129 791 2695 80 3 101 32388 3503 34721 63648 1528 120 4517 470 43 679 479 28 2 0 617 347 728 831 153 2 373 10090 20396 16003 19129 3890 41 4990 8101 9569 14505 48853 4870 66 2304 5711 28430 10688 41864 18702 20 5737 735 4691 1686 5822 1235 6 546 3383 10677 4518 16225 6305 32 3171 687 2966 1451 2254 1256 8 237 111 13 230 776 9 1 150 4536 6353 8633 8258 3058 16 1962 453 3704 662 1164 2097 3 570 4570 30114 11847 9894 18178 22 3859 1188 2273 1602 2104 1396 5 26 0 503 0 0 342 0 0 347 2009 793 11137 810 0 1682 10909 14806 15924 28222 7242 82 3061 538 1815 1394 1163 1097 3 271 7350 9307 7999 37433 5305 49 6239 3563 1826 4106 3710 971 7 587 7090 7351 12453 35201 4043 45 4633 110 35 90 111 20 0 4 6678 1532 7116 8540 511 21 443 65 7 135 460 4 0 48 14930 2668 21572 14860 1576 56 944 485 12 767 772 8 0 90 25 28 37 65 19 0 0 487 79 873 2900 41 4 0 8291 8022 14563 41239 3779 53 3377 2010 854 4612 16392 568 18 259 2938 3778 3924 14207 2115 27 2607 3806 1809 7870 26733 915 25 1398 4018 4406 9020 16486 2150 78 434 68 0 108 128 0 0 11 6562 1127 9578 17154 370 50 205 15043 16824 24524 35032 11268 165 1938 4779 10159 9652 28089 6032 47 14074 5017 5417 7997 6457 1763 88 138 1250 62 1629 3302 27 12 4 2 0 2 4 0 0 0 14 0 17 32 0 0 26 3161 532 4222 15195 235 30 6376 10067 3868 18739 25318 1739 87 1708 2238 9702 4727 7364 5882 26 157 11337 3727 18129 33384 1413 188 1572 1318 382 2958 5443 53 26 498 31248 7618 40693 34007 2862 161 2317 615 51 1018 876 12 9 0 9 0 18 9 0 0 0 987 151 1480 236 101 5 0 3035 457 3504 4740 151 20 8506 395 214 472 609 121 2 0 Model Lo Till 48 716 413 59 461 606 422 176 65 2068 1951 109 613 1031 71 2292 1878 392 1291 6070 325 238 2542 468 99 759 196 577 2992 869 4 78 2059 28 90 5597 21581 7146 2971 13383 1579 23 5036 606 660 1156 0 0 14583 78 10774 60 2246 1 174 13 877 9 34 1298 2626 8126 11623 780 6884 38 8772 35268 13101 11760 1049 3 10 12504 18014 5143 26637 2258 17015 981 10 212 3150 126 ------- Table 8. Forecasted 1998 Phase 4.2 Chesapeake Bay Watershed State County COSEG SEG FIPS Forest Hi Till PA BEDFORD 100042009 100 42009 8610 945 PA BLAIR 100042013 100 42013 225454 17926 PA CENTRE 100042027 100 42027 33074 2555 PA FRANKLIN 100042055 100 42055 11256 938 PA FULTON 100042057 100 42057 57147 3364 PA HUNTINGDON 100042061 100 42061 349028 16274 PA JUNIATA 100042067 100 42067 140736 22178 PA MIFFLIN 100042087 100 42087 155635 19462 PA PERRY 100042099 100 42099 70201 5927 PA SNYDER 100042109 100 42109 5874 262 MD CARROLL 110024013 110 24013 1334 324 PA ADAMS 110042001 110 42001 53817 26766 PA BERKS 110042011 110 42011 13246 5714 PA CUMBERLAND 110042041 110 42041 58894 7135 PA DAUPHIN 110042043 110 42043 29988 10137 PA LANCASTER 110042071 110 42071 8070 9421 PA LEBANON 110042075 110 42075 44920 35780 PA SCHUYLKILL 110042107 110 42107 56980 9651 PA YORK 110042133 110 42133 121997 68754 PA CHESTER 120042029 120 42029 2839 306 PA LANCASTER 120042071 120 42071 29232 32873 PA YORK 120042133 120 42133 10559 3335 MD CECIL 140024015 140 24015 3519 203 MD HARFORD 140024025 140 24025 15646 2840 PA LANCASTER 140042071 140 42071 13333 15920 PA YORK 140042133 140 42133 35054 19069 MD ALLEGANY 160024001 160 24001 118895 1108 MD GARRETT 160024023 160 24023 123720 3726 PA BEDFORD 160042009 160 42009 68609 2560 PA SOMERSET 160042111 160 42111 61917 2794 WV GRANT 160054023 160 54023 91377 1105 WV HAMPSHIRE 160054027 160 54027 7143 107 WV MINERAL 160054057 160 54057 155510 2380 WV PRESTON 160054077 160 54077 689 4 WV TUCKER 160054093 160 54093 481 0 VA HIGHLAND 170051091 170 51091 36740 0 WV GRANT 170054023 170 54023 87521 1176 WV HAMPSHIRE 170054027 170 54027 84192 705 WV HARDY 170054031 170 54031 104827 3279 WV PENDLETON 170054071 170 54071 304232 3446 MD ALLEGANY 175024001 175 24001 88096 685 MD WASHINGTON 175024043 175 24043 22762 441 PA BEDFORD 175042009 175 42009 84115 3151 PA FULTON 175042057 175 42057 12465 905 WV HAMPSHIRE 175054027 175 54027 206073 1830 WV HARDY 175054031 175 54031 148892 2664 WV MORGAN 175054065 175 54065 55225 360 MD FREDERICK 180024021 180 24021 34155 9944 MD WASHINGTON 180024043 180 24043 45848 9249 PA ADAMS 180042001 180 42001 4544 41 PA FRANKLIN 180042055 180 42055 22593 5680 VA LOUDOUN 180051107 180 51107 32539 2999 WV JEFFERSON 180054037 180 54037 6287 803 VA AUGUSTA 190051015 190 51015 196625 6401 VA PAGE 190051139 190 51139 109114 3030 VA ROCKINGHAM 190051165 190 51165 154539 16223 VA WARREN 190051187 190 51187 33875 234 VA HARRISONBURG CITY 190051660 190 51660 705 0 VA STAUNTON CITY 190051790 190 51790 1627 0 VA WAYNESBORO CITY 190051820 190 51820 1110 0 VA CLARKE 200051043 200 51043 35192 4992 VA FREDERICK 200051069 200 51069 38891 1561 VA PAGE 200051139 200 51139 6009 1 VA ROCKINGHAM 200051165 200 51165 131323 12263 VA SHENANDOAH 200051171 200 51171 178830 12823 VA WARREN 200051187 200 51187 35491 533 VA HARRISONBURG CITY 200051660 200 51660 34 0 WV HARDY 200054031 200 54031 7405 95 WV JEFFERSON 200054037 200 54037 18672 1316 MD CARROLL 210024013 210 24013 32182 14399 MD FREDERICK 210024021 210 24021 115929 31337 MD MONTGOMERY 210024031 210 24031 9723 463 PA ADAMS 210042001 210 42001 24440 3399 DC DISTRICT OF COLUMBIA 220011001 220 11001 79 0 MD FREDERICK 220024021 220 24021 5289 2295 MD MONTGOMERY 220024031 220 24031 59484 3412 VA ARLINGTON CITY 220051013 220 51013 33 0 VA FAIRFAX 220051059 220 51059 19008 126 VA FAUQUIER 220051061 220 51061 38114 4545 VA LOUDOUN 220051107 220 51107 83709 7627 VA ALBEMARLE 230051003 230 51003 2158 9 VA CULPEPER 230051047 230 51047 91584 7549 VA FAUQUIER 230051061 230 51061 81483 7761 VA GREENE 230051079 230 51079 21899 268 Land Use in Acres by County Segment Pervious Non-Ag. Impervious Manure Pasture Urban Hay Herb. Urban Acres Water 1259 385 1640 1372 77 6 5 10474 18863 17335 15325 8053 148 1026 1891 162 2760 4932 41 14 11 750 80 1196 962 44 13 0 3059 840 4584 731 369 14 133 17732 4172 20473 27794 1763 115 1621 11193 1826 14589 29553 653 106 1680 13190 6872 16466 28657 2205 172 2288 4692 683 8735 11815 219 41 618 179 15 286 539 3 3 0 310 22 279 536 6 1 0 13870 4077 35295 21639 1803 66 1023 2200 869 4126 5662 452 27 5 4597 8167 7480 10609 5246 42 309 3868 19132 7799 23232 11747 31 6712 2575 2961 3008 2199 1840 63 3726 11086 13922 12609 21211 7505 235 1027 1743 3754 3674 5721 1822 17 164 18700 29593 24729 63373 15777 108 4707 338 0 430 500 0 2 0 8986 4012 10498 7836 2343 218 2787 907 127 1200 3157 38 5 78 182 22 92 420 15 0 1426 2540 628 1652 5148 211 6 1704 4352 575 5084 3831 338 106 6694 5186 762 6858 17933 373 30 480 9200 15351 6240 9359 7227 7 920 7423 2582 4595 7369 1637 16 896 3412 612 4444 3706 301 18 415 2964 335 3540 4614 173 13 5 34088 3575 6362 14935 2234 13 1371 2248 256 923 945 225 1 30 28062 5999 11915 1201 3174 13 1107 54 122 35 37 81 0 0 18 26 5 9 17 0 0 15537 308 2505 7695 131 6 0 36277 2852 6770 15852 1438 14 487 14766 1823 6060 6232 1037 7 1755 37517 1997 7732 9057 1158 31 142 94811 3410 15194 22029 1678 49 568 5684 598 3855 5775 379 4 1040 751 769 475 787 306 4 557 4200 0 5470 4563 0 22 0 823 23 1233 197 15 4 0 38322 2673 15727 16202 1405 18 1458 30480 1661 6282 7317 746 25 144 1386 2277 1132 4229 1096 1 1019 10060 2705 9599 9590 1580 51 1133 15781 9834 9973 16452 6504 74 1453 21 14 54 33 9 0 32 4554 4278 7243 5913 2457 70 12 21533 996 11765 6143 255 1 146 5305 1205 3567 6005 335 7 113 134481 26358 44473 18538 7420 94 472 31609 15373 15659 11016 2558 34 1720 57357 23824 27134 11500 6429 165 1845 6872 3481 3027 4496 527 0 708 0 3439 0 2736 2690 0 5 0 4609 0 4536 1900 0 4 0 3400 0 2484 2005 0 18 23929 1246 14466 6572 556 7 926 11445 1290 8225 14803 622 2 173 9 0 4 3 0 0 0 43355 11284 20510 8730 3299 125 229 56484 19941 25412 21770 5072 40 2144 15635 12115 6887 9740 2800 1 1061 0 717 0 404 555 0 0 1084 28 223 260 19 0 0 8697 6146 5847 9330 1473 11 1383 13782 3280 12376 23833 1619 48 190 31700 19111 30250 29484 10805 162 1602 1207 759 1023 3507 338 1 5 1761 1536 4482 2725 853 8 72 0 782 0 0 489 0 25 2322 907 2216 2210 636 12 742 8899 34237 7543 24682 18973 10 5351 0 36 0 0 7 0 0 999 31107 523 5358 16407 0 252 26940 5774 10076 5990 1046 12 102 54763 22012 29922 13743 11920 4 1042 306 0 175 191 0 0 3 44876 15002 26168 42588 3117 28 909 46003 8848 17205 10201 1698 20 422 6709 1864 2775 5317 279 2 39 Model Lo Till 686 16711 2527 1759 658 18406 9392 9489 8396 421 663 14784 5887 10757 10586 1756 20015 3998 37944 601 6126 1841 370 4326 2967 10524 620 982 1858 942 286 43 1720 5 0 353 305 285 950 949 383 1028 2287 177 741 772 194 12390 21581 23 10650 4617 6110 23164 5163 9743 341 0 0 0 3359 1091 1 7364 6020 775 0 27 10017 29460 39044 3170 1877 0 2860 23368 0 251 4949 11742 18 13052 8450 487 ------- Table 8. Forecasted 1998 Phase 4.2 Chesapeake Bay Watershed State County COSEG SEG FIPS Forest Hi Till VA MADISON 230051113 230 51113 101344 4576 VA ORANGE 230051137 230 51137 56149 3035 VA RAPPAHANNOCK 230051157 230 51157 98199 1586 VA SPOTSYLVANIA 230051177 230 51177 19421 288 VA STAFFORD 230051179 230 51179 17841 210 VA FREDERICKSBURG CITY 230051630 230 51630 216 0 VA CAROLINE 235051033 235 51033 24580 2334 VA ORANGE 235051137 235 51137 1669 50 VA SPOTSYLVANIA 235051177 235 51177 90404 1458 VA CAROLINE 240051033 240 51033 123653 13813 VA KING AND QUEEN 240051097 240 51097 9789 811 VA KING WILLIAM 240051101 240 51101 3098 169 VA SPOTSYLVANIA 240051177 240 51177 4906 94 VA LOUISA 250051109 250 51109 55071 329 VA ORANGE 250051137 250 51137 37023 1883 VA SPOTSYLVANIA 250051177 250 51177 20685 617 VA ALBEMARLE 260051003 260 51003 2125 42 VA CAROLINE 260051033 260 51033 22696 2044 VA GOOCHLAND 260051075 260 51075 3229 68 VA HANOVER 260051085 260 51085 97281 19807 VA LOUISA 260051109 260 51109 133458 953 VA ORANGE 260051137 260 51137 811 112 VA SPOTSYLVANIA 260051177 260 51177 21226 345 VA ALLEGHANY 265051005 265 51005 7140 0 VA BATH 265051017 265 51017 112644 195 VA HIGHLAND 265051091 265 51091 56635 0 VA ALLEGHANY 270051005 270 51005 232349 558 VA AMHERST 270051009 270 51009 74989 141 VA AUGUSTA 270051015 270 51015 130951 875 VA BATH 270051017 270 51017 167005 453 VA BEDFORD 270051019 270 51019 30892 148 VA BOTETOURT 270051023 270 51023 213822 929 VA CRAIG 270051045 270 51045 157251 391 VA GILES 270051071 270 51071 7518 0 VA HIGHLAND 270051091 270 51091 77637 0 VA MONTGOMERY 270051121 270 51121 13904 3 VA ROANOKE 270051161 270 51161 11166 90 VA ROCKBRIDGE 270051163 270 51163 240176 462 VA BUENA VISTA CITY 270051530 270 51530 1808 0 VA CLIFTON FORGE CITY 270051560 270 51560 687 0 VA COVINGTON CITY 270051580 270 51580 618 0 VA LEXINGTON CITY 270051678 270 51678 75 0 WV MONROE 270054063 270 54063 42324 171 WV PENDLETON 270054071 270 54071 974 19 VA ALBEMARLE 280051003 280 51003 280929 1889 VA AMHERST 280051009 280 51009 134878 646 VA APPOMATTOX 280051011 280 51011 54700 1139 VA BEDFORD 280051019 280 51019 15119 121 VA BUCKINGHAM 280051029 280 51029 229692 801 VA CAMPBELL 280051031 280 51031 26467 900 VA CUMBERLAND 280051049 280 51049 58385 803 VA FLUVANNA 280051065 280 51065 102846 691 VA GOOCHLAND 280051075 280 51075 22047 949 VA GREENE 280051079 280 51079 33112 382 VA LOUISA 280051109 280 51109 6467 38 VA NELSON 280051125 280 51125 216636 1362 VA ORANGE 280051137 280 51137 3143 113 VA CHARLOTTESVILLE CITY 280051540 280 51540 151 0 VA LYNCHBURG CITY 280051680 280 51680 12992 0 VA CHESTERFIELD 290051041 290 51041 5322 168 VA CUMBERLAND 290051049 290 51049 18884 323 VA GOOCHLAND 290051075 290 51075 75603 3111 VA HENRICO 290051087 290 51087 4572 774 VA POWHATAN 290051145 290 51145 75571 1571 VA RICHMOND CITY 290051760 290 51760 680 0 VA AMELIA 300051007 300 51007 119832 6922 VA APPOMATTOX 300051011 300 51011 41938 586 VA BUCKINGHAM 300051029 300 51029 14672 49 VA CHESTERFIELD 300051041 300 51041 25588 658 VA CUMBERLAND 300051049 300 51049 33725 720 VA NOTTOWAY 300051135 300 51135 53397 2939 VA POWHATAN 300051145 300 51145 24495 602 VA PRINCE EDWARD 300051147 300 51147 121204 4634 VA AMELIA 310051007 310 51007 9463 266 VA CHESTERFIELD 310051041 310 51041 23371 537 VA DINWIDDIE 310051053 310 51053 28457 3905 VA NOTTOWAY 310051135 310 51135 4184 192 MD HOWARD 330024027 330 24027 20881 693 MD MONTGOMERY 330024031 330 24031 17844 844 MD ANNE ARUNDEL 340024003 340 24003 18523 1020 MD HOWARD 340024027 340 24027 21520 788 MD PRINCE GEORGES 340024033 340 24033 8855 571 DE NEW CASTLE 370010003 370 10003 1045 2283 MD CECIL 370024015 370 24015 10779 4188 Land Use in Acres by County Segment Pervious Non-Ag. Impervious Manure Pasture Urban Hay Herb. Urban Acres Water 44559 9485 17747 15095 1245 21 160 25208 7005 11980 17740 1695 7 674 31636 5633 16800 14905 887 0 122 994 921 751 3456 344 1 364 728 1231 772 3264 269 0 410 0 2 0 156 2 0 21 698 972 330 5567 233 0 94 416 1 198 296 1 0 0 5029 3470 3801 17599 912 3 882 4131 5323 1953 32864 1646 1 987 158 112 60 1783 14 0 13 59 5 22 276 4 0 21 324 148 245 1143 20 0 12 6295 3173 4154 14295 997 2 8481 15642 2562 7434 11094 386 4 373 2129 464 1609 7618 288 1 5291 1342 22 766 921 15 0 10 611 945 289 4872 321 0 151 237 256 156 650 169 0 7 12693 7497 7567 21000 1668 5 728 18239 6518 12037 41571 1746 6 945 934 556 444 636 131 0 18 1191 363 900 4201 62 1 7 1 0 0 1 0 0 502 8126 1166 2774 5166 594 0 2114 21753 695 3507 10755 245 1 0 16968 6613 4940 13842 2495 0 1136 8568 633 2432 2273 388 0 826 18379 2697 6078 2445 1055 13 63 18904 3523 6454 11823 918 0 506 2633 1102 1063 1848 479 1 448 34152 13307 12780 22158 4697 11 1927 13174 788 4030 7083 274 1 19 10 0 2 7 0 0 0 18799 393 3031 9241 153 1 0 229 9 76 156 6 0 0 2331 136 1110 1716 36 1 0 82188 16741 25878 6704 6855 14 2042 0 1026 0 661 790 0 102 0 693 0 24 537 0 48 0 1048 0 265 747 0 170 0 890 0 72 553 0 8 3479 93 847 2601 25 1 0 517 0 83 121 0 0 0 60924 27149 34773 38227 7204 5 2660 39224 13465 11133 10436 4726 1 1874 13672 2490 5479 10359 778 2 590 2149 6051 868 1376 3731 1 352 27444 6806 16175 63598 1865 23 2690 3417 6068 1361 2571 3183 1 318 9248 1747 4526 16753 501 4 469 21969 10753 12219 30123 2875 0 2717 3293 722 2160 9263 232 1 689 9575 4905 3961 7467 704 2 168 736 816 486 1655 159 0 39 34650 8373 13018 24575 1625 1 1565 940 537 447 653 61 0 3 0 3921 0 282 2213 0 11 0 10096 0 1782 6800 0 224 155 2045 84 1071 834 0 64 3717 532 1819 6749 186 2 65 10792 6217 7078 30036 1992 4 3526 311 8589 261 1545 4897 0 630 9021 4590 4775 21184 1546 9 1200 0 856 0 123 284 0 60 17947 2783 9383 48046 1112 19 950 7030 2115 2817 5285 702 1 118 1668 113 983 3878 54 1 82 607 280 327 4472 178 0 298 8293 1316 4059 15095 331 4 419 17473 2665 8640 11159 1111 10 466 3454 478 1828 8254 159 3 244 28628 7764 13561 32800 2742 26 1688 689 20 360 1851 14 1 540 495 713 267 3641 265 0 1611 2919 384 920 3475 217 2 1344 1142 27 565 734 18 1 27 3144 1717 2137 8768 562 5 820 2201 2714 1866 6347 1032 3 634 537 9790 353 1989 5414 0 26 3574 20851 2429 8175 12092 5 188 290 9334 172 941 5400 0 90 214 39 228 1754 15 1 16 3756 726 1911 8471 252 9 596 57 Model Lo Till 11973 4629 1208 457 277 0 1050 76 2314 6211 1449 579 149 2127 2873 979 79 919 54 4050 6161 172 548 0 224 494 441 108 3166 521 50 2578 376 0 427 20 154 4724 0 0 0 0 148 5 3579 494 1150 41 3404 228 1479 1778 752 695 249 2388 173 0 0 7 595 2463 260 2949 0 9140 591 207 28 1327 1781 1129 3776 351 23 1868 116 6255 5780 545 7110 95 1428 7655 ------- Table 8. Forecasted 1998 Phase 4.2 Chesapeake Bay Watershed State County COSEG SEG FIPS Forest Hi Till DE KENT 380010001 380 10001 8436 3953 DE NEW CASTLE 380010003 380 10003 4701 1146 MD CAROLINE 380024011 380 24011 7 6 MD KENT 380024029 380 24029 30463 28720 MD QUEEN ANNES 380024035 380 24035 32422 19796 MD QUEEN ANNES 390024035 390 24035 6469 4686 MD TALBOT 390024041 390 24041 4783 3677 DE KENT 400010001 400 10001 5104 3498 MD CAROLINE 400024011 400 24011 50738 39220 MD DORCHESTER 400024019 400 24019 6139 4876 MD QUEEN ANNES 400024035 400 24035 11157 7815 MD TALBOT 400024041 400 24041 20514 12712 DE KENT 410010001 410 10001 13932 8939 DE SUSSEX 410010005 410 10005 90068 35952 MD CAROLINE 410024011 410 24011 16641 9712 MD DORCHESTER 410024019 410 24019 26436 8721 MD WICOMICO 410024045 410 24045 38911 15502 DE SUSSEX 420010005 420 10005 212 248 MD SOMERSET 420024039 420 24039 22399 4412 MD WICOMICO 420024045 420 24045 39520 20324 MD WORCESTER 420024047 420 24047 24 18 DE SUSSEX 430010005 430 10005 11123 3175 MD SOMERSET 430024039 430 24039 106784 19707 MD WICOMICO 430024045 430 24045 28808 15876 MD WORCESTER 430024047 430 24047 109333 27201 VA ACCOMACK 430051001 430 51001 10570 5363 VA ACCOMACK 440051001 440 51001 67764 33550 VA NORTHAMPTON 440051131 440 51131 13413 34958 MD BALTIMORE 450024005 450 24005 3021 317 MD CECIL 450024015 450 24015 14537 2515 MD HARFORD 450024025 450 24025 42453 8157 PA CHESTER 450042029 450 42029 19503 3216 PA LANCASTER 450042071 450 42071 15303 25867 PA YORK 450042133 450 42133 3847 4068 MD BALTIMORE 470024005 470 24005 117399 6394 MD CARROLL 470024013 470 24013 6820 2103 MD HARFORD 470024025 470 24025 10292 1820 PA YORK 470042133 470 42133 1102 1467 MD BALTIMORE 480024005 480 24005 12762 585 MD BALTIMORE CITY 480024510 480 24510 1429 0 MD ANNE ARUNDEL 490024003 490 24003 11211 891 MD BALTIMORE 490024005 490 24005 3866 50 MD HOWARD 490024027 490 24027 7566 100 MD BALTIMORE CITY 490024510 490 24510 53 0 MD ANNE ARUNDEL 500024003 500 24003 17107 3741 MD CALVERT 500024009 500 24009 45996 8434 MD CHARLES 500024017 500 24017 11055 417 MD PRINCE GEORGES 500024033 500 24033 56898 10026 MD ST MARYS 500024037 500 24037 23074 2888 MD ANNE ARUNDEL 510024003 510 24003 14703 900 DC DISTRICT OF COLUMBIA 540011001 540 11001 364 0 MD MONTGOMERY 540024031 540 24031 5923 202 MD PRINCE GEORGES 540024033 540 24033 6373 789 VA FAIRFAX 550051059 550 51059 26915 188 VA FAUQUIER 550051061 550 51061 47969 5497 VA LOUDOUN 550051107 550 51107 5465 428 VA PRINCE WLLIAM 550051153 550 51153 60065 2080 VA MANASSAS CITY 550051683 550 51683 128 0 VA MANASSAS PARK CITY 550051685 550 51685 256 0 VA CAROLINE 560051033 560 51033 55323 3858 VA ESSEX 560051057 560 51057 88859 11458 VA KING GEORGE 560051099 560 51099 23634 3970 VA LANCASTER 560051103 560 51103 48131 8468 VA MIDDLESEX 560051119 560 51119 26873 5023 VA NORTHUMBERLAND 560051133 560 51133 692 396 VA RICHMOND 560051159 560 51159 76869 17363 VA SPOTSYLVANIA 560051177 560 51177 15543 490 VA STAFFORD 560051179 560 51179 8172 332 VA WESTMORELAND 560051193 560 51193 21441 8862 VA FREDERICKSBURG CITY 560051630 560 51630 1628 0 VA LANCASTER 580051103 580 51103 233 127 VA NORTHUMBERLAND 580051133 580 51133 27510 3990 VA RICHMOND 580051159 580 51159 81 33 VA CAROLINE 590051033 590 51033 5068 498 VA GLOUCESTER 590051073 590 51073 26095 4292 VA HANOVER 590051085 590 51085 43869 8449 VA JAMES CITY 590051095 590 51095 14336 676 VA KING AND QUEEN 590051097 590 51097 95514 8438 VA KING WILLIAM 590051101 590 51101 117692 7562 VA NEW KENT 590051127 590 51127 47563 2967 VA YORK 590051199 590 51199 21058 196 VA WLLIAMSBURG CITY 590051830 590 51830 379 0 VA CHARLES CITY 600051036 600 51036 75789 7138 VA CHESTERFIELD 600051041 600 51041 103118 3803 Land Use in Acres by County Segment Pervious Non-Ag. Impervious Manure Pasture Urban Hay Herb. Urban Acres Water 371 414 305 2361 53 3 0 108 0 114 722 0 0 0 0 0 0 3 0 0 0 3713 2140 1889 10163 682 30 1317 1389 3063 1298 7801 910 11 724 329 1659 307 1803 410 3 475 471 591 116 1780 92 2 410 328 129 270 2101 14 2 0 1822 5288 1447 18859 1258 24 563 294 2597 49 6733 1132 2 474 548 362 512 3102 67 4 9 1628 2402 401 6157 516 6 724 839 239 689 5369 46 6 0 3088 10795 1391 27799 3755 48 1146 451 1529 358 4492 617 6 48 526 1050 87 11965 370 3 748 1039 2557 755 11169 693 10 601 21 308 10 160 191 0 0 365 1729 204 4700 258 3 666 1362 11476 990 14420 5640 14 641 2 0 0 11 0 0 0 273 111 123 2499 12 4 0 1629 5919 911 20989 1352 15 3015 1064 1929 773 11451 374 11 17 2827 3478 715 16415 1163 19 507 200 549 35 1682 83 1 38 1253 4994 220 10524 949 6 2205 1047 3356 68 7155 1335 0 1792 604 51 320 1815 16 1 0 2255 2798 1147 5031 1333 6 1134 7294 2555 4744 14749 1056 18 892 3559 1171 4524 5243 565 20 331 7071 1079 8260 6247 478 172 437 1106 866 1463 3745 422 6 20 12186 23911 6452 34949 13697 20 4468 2013 759 1807 3443 279 7 0 1628 5688 1059 3035 2363 4 359 399 136 528 1358 49 2 0 1116 21916 591 2939 11524 2 69 0 13922 0 310 20259 0 217 469 20486 308 1458 15168 0 827 95 7914 50 233 5035 0 172 454 5589 308 996 3166 1 27 0 765 0 95 1655 0 60 1968 6063 1295 8146 1327 1 660 4167 26106 1505 5443 4465 0 1569 345 2957 259 1504 578 0 36 5088 27814 3030 18404 10144 2 583 851 9572 585 2076 2296 2 482 474 15462 311 1644 8441 0 953 0 7748 0 434 9376 0 299 527 18931 447 1067 9863 1 5 401 26809 239 1047 18487 0 63 1492 20553 781 8999 8628 0 734 32584 18692 12187 7044 4664 14 580 3072 2899 1679 677 1296 0 16 10556 42609 9594 23831 15669 8 1765 0 3344 0 652 2296 0 0 0 437 0 211 268 0 0 1154 3037 545 9202 830 0 398 4213 2201 1182 15153 701 0 967 2525 1185 2402 3750 368 0 302 524 2696 164 8917 447 0 1414 696 2481 410 7354 394 0 988 30 67 13 240 20 0 0 2005 4151 814 13708 693 1 992 1690 6696 1278 5273 3494 1 254 1152 6685 1221 4453 2750 0 207 2088 1535 401 3274 201 0 234 0 2384 0 901 1366 0 83 8 25 2 136 3 0 0 301 2130 133 2248 290 0 734 4 0 2 27 0 0 0 149 386 70 1184 55 0 0 648 3054 295 8581 2020 0 807 5414 11358 3228 8582 3085 2 1044 354 1269 270 3205 877 0 81 1647 1383 627 18590 372 4 1045 2656 1910 980 12472 631 7 2426 675 664 294 7353 320 0 1242 171 9711 52 3852 4880 0 1124 0 680 0 42 401 0 1 1021 1006 454 12472 379 7 1800 3504 41108 1892 24071 21925 1 4278 Model Lo Till 3404 717 4 24732 57068 13508 9033 3013 26273 8769 22530 31226 7698 58135 6506 15684 4549 400 2450 5964 14 5134 10946 4659 22029 667 4175 842 1058 4596 12425 6325 4820 2245 21347 4302 2773 810 1954 0 476 167 902 0 2000 3147 944 1660 1272 481 0 1385 131 375 5985 659 7079 0 0 1735 24340 2919 2356 3954 228 5823 778 438 2954 0 35 2298 11 224 1997 1728 407 15079 25956 2321 32 0 5878 163 ------- Table 8. Forecasted 1998 Phase 4.2 Chesapeake Bay Watershed State County COSEG SEG FIPS Forest Hi Till VA DINWIDDIE 600051053 600 51053 919 589 VA HENRICO 600051087 600 51087 20662 4572 VA ISLE OF WIGHT 600051093 600 51093 28270 16475 VA JAMES CITY 600051095 600 51095 41071 1875 VA NEW KENT 600051127 600 51127 37013 1723 VA POWHATAN 600051145 600 51145 3101 61 VA PRINCE GEORGE 600051149 600 51149 43027 13021 VA SURRY 600051181 600 51181 41458 10454 VA YORK 600051199 600 51199 4590 24 VA COLONIAL HEIGHTS CITY 600051570 600 51570 882 0 VA HAMPTON CITY 600051650 600 51650 138 0 VA HOPEWELL CITY 600051670 600 51670 1059 0 VA NEWPORT NEWS CITY 600051700 600 51700 11430 0 VA PETERSBURG CITY 600051730 600 51730 2063 0 VA RICHMOND CITY 600051760 600 51760 2076 0 VA SUFFOLK 600051800 600 51800 2610 1667 VA WLLIAMSBURG CITY 600051830 600 51830 2157 0 VA CHARLES CITY 610051036 610 51036 8411 809 VA HANOVER 610051085 610 51085 17510 3715 VA HENRICO 610051087 610 51087 23199 2763 VA NEW KENT 610051127 610 51127 16141 1007 VA ISLE OF WIGHT 620051093 620 51093 13532 10700 VA PORTSMOUTH CITY 620051740 620 51740 684 0 VA SUFFOLK 620051800 620 51800 36894 17254 VA CHESAPEAKE CITY 630051550 630 51550 1607 1176 VA PORTSMOUTH CITY 630051740 630 51740 276 0 MD BALTIMORE 650024005 650 24005 9906 418 MD CARROLL 650024013 650 24013 30853 7258 PA BRADFORD 700042015 700 42015 86334 12609 PA TIOGA 700042117 700 42117 1291 213 PA LANCASTER 710042071 710 42071 12161 32136 PA LEBANON 710042075 710 42075 5048 182 PA YORK 710042133 710 42133 18799 9919 PA BERKS 720042011 720 42011 12140 1274 PA CHESTER 720042029 720 42029 951 36 PA LANCASTER 720042071 720 42071 47954 82782 PA LEBANON 720042075 720 42075 6920 2356 MD WASHINGTON 730024043 730 24043 277 194 PA ADAMS 730042001 730 42001 14152 122 PA FRANKLIN 730042055 730 42055 119612 27267 MD WASHINGTON 740024043 740 24043 50708 8366 PA FRANKLIN 740042055 740 42055 18502 738 PA FULTON 740042057 740 42057 127314 11302 VA CLARKE 740051043 740 51043 3653 1787 VA FREDERICK 740051069 740 51069 83516 3888 VA WNCHESTER CITY 740051840 740 51840 265 0 WV BERKELEY 740054003 740 54003 92757 4054 WV JEFFERSON 740054037 740 54037 10249 1144 WV MORGAN 740054065 740 54065 52510 1306 MD CARROLL 750024013 750 24013 1388 816 MD FREDERICK 750024021 750 24021 2056 945 PA ADAMS 750042001 750 42001 33865 13849 MD BALTIMORE 760024005 760 24005 8967 390 MD CARROLL 760024013 760 24013 13904 3227 MD HOWARD 760024027 760 24027 10912 288 DE KENT 770010001 770 10001 22119 10229 MD CAROLINE 770024011 770 24011 8280 4633 MD QUEEN ANNES 770024035 770 24035 804 247 DE KENT 780010001 780 10001 3210 1662 DE SUSSEX 780010005 780 10005 13046 6444 DE NEW CASTLE 800010003 800 10003 3427 2285 MD CECIL 800024015 800 24015 56380 7779 PA CHESTER 800042029 800 42029 12850 3518 DE NEW CASTLE 810010003 810 10003 1479 1270 MD CECIL 810024015 810 24015 4543 1955 MD KENT 810024029 810 24029 26391 21618 MD QUEEN ANNES 820024035 820 24035 7894 4144 MD TALBOT 830024041 830 24041 19700 9785 MD DORCHESTER 840024019 840 24019 159031 21412 MD SOMERSET 840024039 840 24039 3 3 MD HARFORD 850024025 850 24025 51977 6832 MD BALTIMORE 860024005 860 24005 2757 162 MD BALTIMORE CITY 860024510 860 24510 265 0 MD ANNE ARUNDEL 870024003 870 24003 5230 398 MD ANNE ARUNDEL 880024003 880 24003 31509 3089 MD CALVERT 880024009 880 24009 22635 1403 DC DISTRICT OF COLUMBIA 890011001 890 11001 2033 0 MD MONTGOMERY 890024031 890 24031 5352 314 DC DISTRICT OF COLUMBIA 900011001 900 11001 4 0 VA ARLINGTON CITY 900051013 900 51013 332 0 VA FAIRFAX 900051059 900 51059 8453 105 VA ALEXANDRIA CITY 900051510 900 51510 194 0 VA FAIRFAX CITY 900051600 900 51600 80 0 VA FALLS CHURCH CITY 900051610 900 51610 25 0 Land Use in Acres by County Segment Pervious Non-Ag. Impervious Manure Pasture Urban Hay Herb. Urban Acres Water 441 2237 139 348 2050 0 86 1835 11265 1544 9972 4896 1 1364 1508 7393 361 6201 3349 31 956 983 9423 749 8568 5578 0 2397 392 1484 171 4215 872 0 1827 349 319 185 811 68 0 9 2050 3375 1227 9349 1966 2 1267 1054 3362 523 6076 730 40 1026 21 1724 6 470 761 0 22 0 1890 0 618 1306 0 201 0 3842 0 27 2746 0 162 0 2968 0 375 2145 0 90 0 13760 0 2456 11031 0 1270 0 3763 0 1202 2542 0 152 0 19626 0 1221 13312 0 1169 216 1985 13 728 720 0 362 0 1094 0 156 591 0 57 116 98 51 1414 83 1 57 2381 11063 1419 3457 3667 1 238 1109 25562 933 5765 13532 0 389 229 1536 100 2442 771 0 364 979 1582 235 4120 561 20 824 0 2702 0 658 1874 0 664 2237 15443 132 7745 7578 4 4717 81 5441 50 158 3142 0 169 0 3404 0 171 2305 0 314 797 908 422 2274 393 1 1144 6947 5345 6238 11644 2528 24 1441 11024 3153 17545 17800 1885 63 1815 299 33 432 311 22 1 35 8784 5294 10262 7614 3303 213 7924 56 122 64 112 65 1 0 2698 3850 3568 9179 1957 16 139 490 692 920 1216 522 6 61 40 56 50 57 54 0 0 22628 32530 26435 18971 21121 550 1822 730 272 830 1428 115 15 25 331 12 209 351 8 2 103 63 133 161 98 89 0 251 21862 13170 34772 28450 7008 334 757 14273 7285 9020 14923 4609 67 4055 592 17 942 751 12 9 0 10286 1195 15400 2470 510 37 214 8564 89 5177 2357 48 3 19 28508 8139 20488 36530 3904 5 521 0 2971 0 1162 1581 0 0 23860 10335 23983 38255 4604 18 625 7562 1303 5084 8541 249 10 58 5034 871 4109 15190 423 0 87 781 53 701 1374 14 3 178 956 31 912 948 16 5 69 7177 4510 18262 11093 2701 34 476 743 1955 394 2109 958 1 34 3089 2948 2774 5145 1233 11 299 1305 1265 887 3540 589 2 49 960 1224 788 6106 138 7 42 215 651 171 2138 75 3 14 17 41 16 99 5 0 0 156 232 128 991 39 1 0 553 1708 249 4994 416 9 0 214 412 228 1541 90 1 107 6976 13169 3549 15521 4754 17 861 3894 1580 4949 5744 616 21 406 119 40 127 885 11 0 0 1753 241 892 3954 101 4 257 2479 1486 1261 6457 546 20 1522 291 5887 272 1477 2326 2 1865 1253 9440 309 4602 3166 5 3009 1291 5116 215 29235 1364 8 12650 0 1 0 3 0 0 12 6110 23318 3974 11445 10787 15 772 308 14717 163 654 14447 1 743 0 6590 0 120 6218 0 67 209 10019 138 662 5254 0 587 1625 14890 1069 6246 6983 1 1292 693 8519 250 901 1995 0 163 0 6852 0 87 7158 0 220 819 17255 694 1708 10891 1 140 0 46 0 61 46 0 50 0 8934 0 85 7187 0 68 839 66285 439 2718 31364 0 847 0 4532 0 -92 5026 0 25 0 2306 0 6 1604 0 0 0 672 0 3 571 0 0 Model Lo Till 282 1539 3088 1130 1348 114 2493 5659 4 0 0 0 0 0 0 354 0 666 760 930 788 2006 0 3667 97 0 1396 14850 200 18 5989 102 5474 1312 70 15426 1318 453 67 51130 19520 1385 2210 1202 2717 0 7505 8709 703 1669 1177 7649 1302 6603 2596 8809 3104 713 1431 10420 1429 14217 6919 795 3574 14068 11945 24037 38508 2 10408 540 0 213 1651 523 0 2151 0 0 211 0 0 0 ------- Table 8. Forecasted 1998 Phase 4.2 Chesapeake Bay Watershed Model Land Use in Acres by County Segment State County COSEG SEG FIPS Forest DC DISTRICT OF COLUMBIA 910011001 910 11001 98 MD CHARLES 910024017 910 24017 37940 MD PRINCE GEORGES 910024033 910 24033 31777 MD CHARLES 920024017 920 24017 123234 MD PRINCE GEORGES 920024033 920 24033 2848 MD ST MARYS 920024037 920 24037 88811 VA LANCASTER 930051103 930 51103 6559 VA NORTHUMBERLAND 930051133 930 51133 10804 VA ESSEX 940051057 940 51057 9425 VA GLOUCESTER 940051073 940 51073 59779 VA KING AND QUEEN 940051097 940 51097 34557 VA MATHEWS 940051115 940 51115 30362 VA MIDDLESEX 940051119 940 51119 24181 VA YORK 950051199 950 51199 4896 VA POQUOSON CITY 950051735 950 51735 3033 VA YORK 955051199 955 51199 1023 VA HAMPTON CITY 955051650 955 51650 5149 VA NEWPORT NEWS CITY 955051700 955 51700 340 VA POQUOSON CITY 955051735 955 51735 2155 VA NORTHAMPTON 960051131 960 51131 0 VA CHESAPEAKE CITY 960051550 960 51550 3132 VA HAMPTON CITY 960051650 960 51650 1 VA NORFOLK CITY 960051710 960 51710 627 VA PORTSMOUTH CITY 960051740 960 51740 171 VA VIRGINIA BEACH 960051810 960 51810 179 VA NORFOLK CITY 965051710 965 51710 406 VA VIRGINIA BEACH 965051810 965 51810 4225 VA PRINCE WLLIAM 970051153 970 51153 25257 VA FAUQUIER 980051061 980 51061 1950 VA KING GEORGE 980051099 980 51099 51701 VA NORTHUMBERLAND 980051133 980 51133 34019 VA PRINCE WLLIAM 980051153 980 51153 7169 VA RICHMOND 980051159 980 51159 26 VA STAFFORD 980051179 980 51179 76616 VA WESTMORELAND 980051193 980 51193 55192 MD ST MARYS 990024037 990 24037 6902 23289300 Pervious Non-Ag. Impervious Manure Lo Till Pasture Urban Hay Herb. Urban Acres Water 0 0 1874 0 56 1395 0 36 1901 694 15389 521 2922 5034 0 665 590 1810 34187 1078 6088 13960 1 248 13778 5032 27871 3776 22158 7167 2 1551 44 135 677 80 479 127 0 0 8624 5770 22350 3964 14687 4822 12 2760 461 102 842 32 1747 149 0 561 1583 207 518 92 1586 95 0 522 3002 520 66 146 1864 40 0 50 3032 984 5141 448 13073 2324 0 1364 3781 413 52 157 4624 35 1 24 1283 1475 2819 892 11332 1078 0 1836 2369 417 656 246 4467 131 0 265 12 63 5779 19 1156 3901 0 554 0 0 1099 0 1152 661 0 395 2 8 1307 3 139 998 0 95 0 0 10663 0 2039 7834 0 596 0 0 2167 0 123 1617 0 66 0 0 617 0 449 403 0 54 0 0 2 0 0 8 0 5 476 396 19334 245 517 13782 2 999 0 0 11 0 0 13 0 3 0 0 12555 0 415 11909 0 749 0 0 4397 0 135 3683 0 141 15 8 4611 4 6 3670 0 397 0 0 4005 0 347 3184 0 538 173 90 23500 44 373 16187 0 2223 364 543 5600 493 1327 2656 0 239 38 207 197 77 45 37 0 0 2414 2088 7337 1986 2837 1591 0 755 6694 876 2019 388 6812 358 0 1478 73 109 792 99 274 325 0 288 21 7 31 3 54 5 0 0 999 2629 21342 2787 10948 6311 1 1285 6982 4935 6676 948 7754 1475 1 1835 589 394 4142 271 942 1499 1 635 1863072 3026894 2485667 2177544 4116366 1188028 8606 423311 Hi Till 0 840 3566 6086 265 19579 1657 2748 1413 6516 2116 3821 3010 73 0 10 0 0 0 0 5779 0 0 0 86 0 991 107 35 3283 11625 21 62 757 20947 1337 2533611 ------- Table 9. Forecasted 2000 Phase 4.2 Chesapeake Bay Watershed State County COSEG SEG FIPS Forest Hi Till NY ALLEGANY 10036003 10 36003 36426 3371 NY CHEMUNG 10036015 10 36015 101865 14565 NY LIVINGSTON 10036051 10 36051 4508 2311 NY ONTARIO 10036069 10 36069 436 104 NY SCHUYLER 10036097 10 36097 36231 1985 NY STEUBEN 10036101 10 36101 480110 63888 NY YATES 10036123 10 36123 2988 1087 PA BRADFORD 10042015 10 42015 55348 10981 PA POTTER 10042105 10 42105 18237 3109 PA TIOGA 10042117 10 42117 270743 20405 NY BROOME 20036007 20 36007 193066 19264 NY CHEMUNG 20036015 20 36015 22302 2225 NY CHENANGO 20036017 20 36017 358644 39520 NY CORTLAND 20036023 20 36023 162604 24306 NY DELAWARE 20036025 20 36025 115009 7300 NY HERKIMER 20036043 20 36043 21114 4230 NY MADISON 20036053 20 36053 126644 17855 NY ONEIDA 20036065 20 36065 19114 2189 NY ONONDAGA 20036067 20 36067 20980 5602 NY OTSEGO 20036077 20 36077 356213 40936 NY SCHOHARIE 20036095 20 36095 17574 1454 NY SCHUYLER 20036097 20 36097 18356 1026 NY TIOGA 20036107 20 36107 162106 26966 NY TOMPKINS 20036109 20 36109 45952 5010 PA BRADFORD 20042015 20 42015 30621 6192 PA SUSQUEHANNA 20042115 20 42115 127760 6115 PA WAYNE 20042127 20 42127 14581 318 PA BRADFORD 30042015 30 42015 224633 35972 PA LACKAWANNA 30042069 30 42069 152367 2765 PA LUZERNE 30042079 30 42079 61710 2432 PA LYCOMING 30042081 30 42081 971 43 PA SULLIVAN 30042113 30 42113 13770 380 PA SUSQUEHANNA 30042115 30 42115 183879 16586 PA TIOGA 30042117 30 42117 3206 313 PA WAYNE 30042127 30 42127 14789 145 PA WYOMING 30042131 30 42131 167358 8975 PA COLUMBIA 40042037 40 42037 149488 40786 PA LUZERNE 40042079 40 42079 256065 19988 PA MONTOUR 40042093 40 42093 10288 2811 PA NORTHUMBERLAND 40042097 40 42097 68862 12777 PA SCHUYLKILL 40042107 40 42107 39016 3976 PA SULLIVAN 40042113 40 42113 28041 110 PA CAMBRIA 50042021 50 42021 137103 10998 PA CENTRE 50042027 50 42027 105455 600 PA CLEARFIELD 50042033 50 42033 463458 8830 PA INDIANA 50042063 50 42063 28775 1870 PA JEFFERSON 50042065 50 42065 17 0 PA CAMERON 60042023 60 42023 237469 314 PA CENTRE 60042027 60 42027 283198 14431 PA CLEARFIELD 60042033 60 42033 110464 1039 PA CLINTON 60042035 60 42035 483591 6372 PA ELK 60042047 60 42047 156062 2227 PA LYCOMING 60042081 60 42081 390182 22357 PA MCKEAN 60042083 60 42083 15114 64 PA POTTER 60042105 60 42105 371197 8271 PA SULLIVAN 60042113 60 42113 2819 65 PA TIOGA 60042117 60 42117 236817 9938 PA BRADFORD 70042015 70 42015 6109 546 PA CENTRE 70042027 70 42027 9041 33 PA COLUMBIA 70042037 70 42037 4977 2454 PA LYCOMING 70042081 70 42081 201947 26145 PA MONTOUR 70042093 70 42093 13477 7688 PA NORTHUMBERLAND 70042097 70 42097 16830 11097 PA SULLIVAN 70042113 70 42113 191303 3775 PA UNION 70042119 70 42119 81132 23586 PA WYOMING 70042131 70 42131 3129 61 PA CENTRE 80042027 80 42027 93515 8680 PA CUMBERLAND 80042041 80 42041 75945 23543 PA DAUPHIN 80042043 80 42043 135645 12138 PA FRANKLIN 80042055 80 42055 42125 6383 PA JUNIATA 80042067 80 42067 9969 2499 PA LEBANON 80042075 80 42075 9594 6 PA MIFFLIN 80042087 80 42087 10184 20 PA NORTHUMBERLAND 80042097 80 42097 41830 11938 PA PERRY 80042099 80 42099 150015 12699 PA SCHUYLKILL 80042107 80 42107 67511 12952 PA SNYDER 80042109 80 42109 90999 16609 PA UNION 80042119 80 42119 34905 7735 PA BEDFORD 90042009 90 42009 285923 23084 PA BLAIR 90042013 90 42013 3120 1074 PA CAMBRIA 90042021 90 42021 1 23 PA FULTON 90042057 90 42057 18668 1037 PA HUNTINGDON 90042061 90 42061 86705 2828 PA SOMERSET 90042111 90 42111 15058 343 PA BEDFORD 100042009 100 42009 8579 930 Land Use in Acres by County Segment Pervious Non-Ag. Impervious Pasture Urban Hay Herb. Urban Manure Acres Water 2677 2151 2683 4453 1139 10 5 12496 16386 11026 38676 7846 28 1587 516 0 477 1853 0 4 0 22 0 31 63 0 0 0 2742 1410 2876 3829 755 7 1976 46807 28264 62802 82055 15829 153 3381 323 47 786 783 10 2 28 9084 2300 15827 15848 1059 54 931 2374 236 2735 3317 120 7 103 28048 8606 46975 31553 4555 116 3120 15645 35404 18923 96341 19206 66 5802 1909 464 1685 5909 243 4 23 40023 11487 43989 70725 4872 195 3433 18846 7360 17522 45013 2364 104 1608 18605 3351 16746 23237 1832 49 864 4744 1376 5237 13336 685 27 254 11502 2648 17394 25482 568 75 1672 1583 292 2005 4996 151 10 116 1140 715 1728 3432 108 12 423 52712 12447 54038 94880 4997 194 8823 1281 176 1961 3250 87 6 125 1416 404 1486 1991 237 4 360 20184 14356 19928 78426 6131 95 2781 1686 596 2123 3618 263 10 122 5123 1585 8925 8937 1083 30 618 10926 4265 12817 23185 2474 44 3150 1195 58 1601 1895 24 4 338 29759 4241 51848 51631 2361 177 5328 4761 42642 7850 14325 21233 20 3561 691 14195 1384 5105 11161 2 1823 13 0 24 67 0 0 0 325 129 806 2701 80 3 101 29633 3515 34762 64190 1533 120 4517 425 43 712 484 28 2 0 545 351 731 834 155 2 373 9171 20248 16175 19232 3862 38 4990 7696 9575 14464 48175 4873 73 2304 5680 28430 11378 41644 18702 20 5737 626 4691 1715 5918 1235 6 546 3598 10677 4802 16143 6305 31 3171 558 2966 1422 2250 1256 9 237 94 13 234 777 9 1 150 4209 6353 9254 8169 3058 16 1962 444 3737 681 1164 2116 3 570 3821 30535 12504 9890 18432 23 3859 1078 2273 1543 2113 1396 5 26 0 503 0 0 342 0 0 271 2009 822 11138 810 0 1682 10690 14943 16398 28236 7309 84 3061 450 1840 1471 1163 1112 3 271 7919 9307 8202 37374 5305 51 6239 3680 1826 4438 3708 971 7 587 6794 7351 12508 35203 4043 45 4633 107 35 87 111 20 0 4 6315 1540 7274 8545 514 20 443 56 7 138 461 4 0 48 13508 2674 22622 14926 1579 56 944 455 12 787 774 8 0 90 25 28 38 65 19 0 0 463 79 870 2839 41 4 0 7945 8022 14628 41243 3779 53 3377 1713 854 4691 16790 568 15 259 3125 3778 4171 14035 2115 27 2607 3229 1808 8013 26779 914 26 1398 3924 4414 8541 16413 2153 82 434 62 0 110 128 0 0 11 6430 1137 9863 17186 374 50 205 14666 16954 24536 34960 11355 164 1938 4762 10109 9900 28206 6002 45 14074 4875 5458 7728 6462 1776 92 138 1284 63 1624 3286 28 13 4 2 0 2 4 0 0 0 14 0 17 32 0 0 26 3362 532 4487 15088 235 29 6376 10663 3926 20539 24969 1766 92 1708 1817 9702 4632 7340 5882 28 157 12663 3746 18300 32935 1420 205 1572 1287 383 2801 5425 53 27 498 30728 7626 42716 33912 2865 163 2317 663 51 1042 851 12 9 0 9 0 19 6 0 0 0 967 152 1552 236 101 4 0 2849 453 3401 4750 150 20 8506 367 214 497 611 121 2 0 1238 386 1721 1367 77 7 5 Model Lo Till 50 776 411 60 436 579 431 174 65 1933 1993 119 621 986 73 2301 1735 385 1353 6084 330 225 2554 479 98 784 197 571 2467 967 4 79 2128 26 90 5571 22729 7945 2879 13349 1647 23 5467 593 634 1172 0 0 14276 75 10806 52 2266 1 173 14 820 9 33 1367 2650 7874 11594 791 7137 38 8587 35496 12675 11970 1058 4 10 12473 17990 5365 26728 2341 16754 1001 11 203 3198 116 675 ------- Table 9. Forecasted 2000 Phase 4.2 Chesapeake Bay Watershed State County COSEG SEG FIPS Forest Hi Till PA BLAIR 100042013 100 42013 223638 18298 PA CENTRE 100042027 100 42027 33127 2501 PA FRANKLIN 100042055 100 42055 11267 955 PA FULTON 100042057 100 42057 57162 3214 PA HUNTINGDON 100042061 100 42061 350150 16522 PA JUNIATA 100042067 100 42067 140244 22382 PA MIFFLIN 100042087 100 42087 156709 19017 PA PERRY 100042099 100 42099 69248 5919 PA SNYDER 100042109 100 42109 5850 262 MD CARROLL 110024013 110 24013 1339 322 PA ADAMS 110042001 110 42001 53251 26641 PA BERKS 110042011 110 42011 13328 5637 PA CUMBERLAND 110042041 110 42041 58804 7181 PA DAUPHIN 110042043 110 42043 30349 9808 PA LANCASTER 110042071 110 42071 8010 9461 PA LEBANON 110042075 110 42075 43569 37236 PA SCHUYLKILL 110042107 110 42107 56807 10068 PA YORK 110042133 110 42133 119827 70056 PA CHESTER 120042029 120 42029 2834 306 PA LANCASTER 120042071 120 42071 29125 33013 PA YORK 120042133 120 42133 10457 3398 MD CECIL 140024015 140 24015 3501 207 MD HARFORD 140024025 140 24025 15735 2887 PA LANCASTER 140042071 140 42071 13303 15987 PA YORK 140042133 140 42133 34550 19430 MD ALLEGANY 160024001 160 24001 118629 1010 MD GARRETT 160024023 160 24023 123846 3867 PA BEDFORD 160042009 160 42009 68517 2521 PA SOMERSET 160042111 160 42111 62215 2572 WV GRANT 160054023 160 54023 89529 1206 WV HAMPSHIRE 160054027 160 54027 7101 82 WV MINERAL 160054057 160 54057 155880 2447 WV PRESTON 160054077 160 54077 685 4 WV TUCKER 160054093 160 54093 479 0 VA HIGHLAND 170051091 170 51091 37047 0 WV GRANT 170054023 170 54023 85573 1284 WV HAMPSHIRE 170054027 170 54027 83900 542 WV HARDY 170054031 170 54031 104913 2907 WV PENDLETON 170054071 170 54071 304742 3470 MD ALLEGANY 175024001 175 24001 87930 624 MD WASHINGTON 175024043 175 24043 22724 459 PA BEDFORD 175042009 175 42009 84002 3103 PA FULTON 175042057 175 42057 12470 865 WV HAMPSHIRE 175054027 175 54027 205357 1406 WV HARDY 175054031 175 54031 148966 2362 WV MORGAN 175054065 175 54065 55065 361 MD FREDERICK 180024021 180 24021 34339 10046 MD WASHINGTON 180024043 180 24043 45240 9634 PA ADAMS 180042001 180 42001 4543 41 PA FRANKLIN 180042055 180 42055 22614 5781 VA LOUDOUN 180051107 180 51107 32733 2546 WV JEFFERSON 180054037 180 54037 6370 816 VA AUGUSTA 190051015 190 51015 198677 6216 VA PAGE 190051139 190 51139 108527 3059 VA ROCKINGHAM 190051165 190 51165 155539 16260 VA WARREN 190051187 190 51187 33513 299 VA HARRISONBURG CITY 190051660 190 51660 705 0 VA STAUNTON CITY 190051790 190 51790 1627 0 VA WAYNESBORO CITY 190051820 190 51820 1111 0 VA CLARKE 200051043 200 51043 34780 5357 VA FREDERICK 200051069 200 51069 38850 1628 VA PAGE 200051139 200 51139 6009 1 VA ROCKINGHAM 200051165 200 51165 132181 12290 VA SHENANDOAH 200051171 200 51171 177791 13174 VA WARREN 200051187 200 51187 34723 680 VA HARRISONBURG CITY 200051660 200 51660 34 0 WV HARDY 200054031 200 54031 7408 84 WV JEFFERSON 200054037 200 54037 18730 1337 MD CARROLL 210024013 210 24013 32276 14317 MD FREDERICK 210024021 210 24021 115977 31657 MD MONTGOMERY 210024031 210 24031 9741 472 PA ADAMS 210042001 210 42001 24321 3383 DC DISTRICT OF COLUMBIA 220011001 220 11001 79 0 MD FREDERICK 220024021 220 24021 5311 2319 MD MONTGOMERY 220024031 220 24031 58675 3478 VA ARLINGTON CITY 220051013 220 51013 33 0 VA FAIRFAX 220051059 220 51059 17928 145 VA FAUQUIER 220051061 220 51061 38226 4730 VA LOUDOUN 220051107 220 51107 79798 6476 VA ALBEMARLE 230051003 230 51003 2180 8 VA CULPEPER 230051047 230 51047 91137 7058 VA FAUQUIER 230051061 230 51061 81725 8077 VA GREENE 230051079 230 51079 21722 223 VA MADISON 230051113 230 51113 100122 5017 VA ORANGE 230051137 230 51137 55959 3015 Land Use in Acres by County Segment Pervious Non-Ag. Impervious Pasture Urban Hay Herb. Urban Manure Acres Water 11293 18852 17745 15202 8049 156 1026 1853 163 2842 4940 41 14 11 729 80 1156 962 44 14 0 2997 843 4808 732 370 12 133 16647 4137 19868 27884 1748 116 1621 11499 1852 14546 29449 662 113 1680 12986 6866 16054 28855 2203 188 2288 4970 693 9574 11655 222 43 618 200 16 289 537 3 3 0 307 23 280 538 6 1 0 13059 4155 36982 21411 1837 63 1023 2200 878 4155 5697 457 27 5 4482 8230 7484 10593 5286 42 309 3854 19037 7999 23512 11688 30 6712 2581 2998 2972 2183 1863 62 3726 11006 13953 12351 20572 7521 246 1027 1416 3754 3601 5704 1822 18 164 18916 29989 25194 62246 15988 99 4707 334 0 440 499 0 2 0 9005 4062 10369 7808 2372 218 2787 918 129 1222 3126 39 5 78 190 23 91 418 15 0 1426 2362 644 1570 5177 216 6 1704 4361 582 5021 3823 343 106 6694 5246 772 6988 17676 378 27 480 8845 15351 7036 9338 7227 7 920 7226 2564 4510 7377 1626 16 896 3356 613 4665 3701 302 18 415 2753 334 3730 4636 172 13 5 35897 3551 6614 14633 2220 13 1371 2301 259 947 939 228 1 30 27080 5990 12422 1204 3170 13 1107 54 122 38 37 81 0 0 20 26 5 9 17 0 0 15165 308 2499 7760 131 6 0 38202 2833 7039 15499 1428 14 487 15112 1846 6221 6210 1050 7 1755 37399 2015 8207 9064 1168 31 142 93742 3406 15691 22066 1676 49 568 5465 598 4347 5764 379 4 1040 751 769 453 786 307 4 557 4130 0 5742 4557 0 22 0 806 23 1293 197 15 3 0 39222 2706 16145 16145 1422 18 1458 30384 1676 6668 7321 753 25 144 1435 2298 1222 4216 1106 1 1019 9495 2818 9522 9641 1645 51 1133 15782 9840 9505 16233 6508 74 1453 20 14 57 33 10 0 32 4425 4311 6999 5919 2476 73 12 21810 1162 12197 6179 297 1 146 5001 1247 3546 6084 347 7 113 130302 27359 45978 18732 7702 92 472 30925 15439 16831 10957 2569 34 1720 55230 24122 27753 11574 6509 163 1845 7015 3510 3102 4448 531 0 708 0 3438 0 2737 2689 0 5 0 4609 0 4536 1900 0 4 0 3397 0 2487 2004 0 18 23288 1269 14950 6495 567 7 926 11349 1358 8163 14788 655 2 173 9 0 5 3 0 0 0 41747 11425 20977 8787 3340 123 229 56356 20564 25407 21643 5231 40 2144 15960 12215 7057 9529 2824 1 1061 0 717 0 405 555 0 0 1080 29 237 260 19 0 0 8198 6360 5813 9359 1524 11 1383 13618 3418 12419 23903 1687 48 190 29921 19905 30005 29496 11254 162 1602 1116 782 988 3514 348 1 5 1658 1565 4696 2712 870 8 72 0 782 0 0 489 0 25 2192 945 2198 2219 662 12 742 8231 35238 7284 24347 19528 10 5351 0 36 0 0 7 0 0 878 32028 563 5054 16893 0 252 26361 6036 9831 6008 1093 11 102 55470 25690 31021 13101 13912 3 1042 284 0 176 194 0 0 3 45775 15518 26642 42380 3224 27 909 45013 9248 16787 10231 1775 19 422 6875 2011 2785 5274 301 2 39 44326 9708 17539 14913 1274 21 160 25516 7261 11654 17681 1757 7 674 Model Lo Till 17058 2474 1790 628 18686 9478 9272 8386 422 660 14715 5807 10826 10242 1763 20829 4170 38663 601 6152 1876 378 4398 2979 10723 565 1019 1830 867 312 33 1769 5 0 361 333 219 842 955 349 1071 2252 169 569 684 194 12517 22479 23 10840 3920 6208 22496 5214 9764 434 0 0 0 3604 1138 1 7381 6184 989 0 24 10177 29292 39443 3231 1868 0 2889 23818 0 289 5150 9970 15 12202 8794 406 13125 4599 ------- Table 9. Forecasted 2000 Phase 4.2 Chesapeake Bay Watershed State County COSEG SEG FIPS Forest Hi Till VA RAPPAHANNOCK 230051157 230 51157 99214 1581 VA SPOTSYLVANIA 230051177 230 51177 19382 281 VA STAFFORD 230051179 230 51179 17829 190 VA FREDERICKSBURG CITY 230051630 230 51630 216 0 VA CAROLINE 235051033 235 51033 24403 2432 VA ORANGE 235051137 235 51137 1670 50 VA SPOTSYLVANIA 235051177 235 51177 90426 1424 VA CAROLINE 240051033 240 51033 122645 14391 VA KING AND QUEEN 240051097 240 51097 9875 787 VA KING WILLIAM 240051101 240 51101 3142 164 VA SPOTSYLVANIA 240051177 240 51177 4920 92 VA LOUISA 250051109 250 51109 54924 335 VA ORANGE 250051137 250 51137 36973 1871 VA SPOTSYLVANIA 250051177 250 51177 20797 603 VA ALBEMARLE 260051003 260 51003 2199 35 VA CAROLINE 260051033 260 51033 22534 2129 VA GOOCHLAND 260051075 260 51075 3211 62 VA HANOVER 260051085 260 51085 96404 19991 VA LOUISA 260051109 260 51109 133219 971 VA ORANGE 260051137 260 51137 798 112 VA SPOTSYLVANIA 260051177 260 51177 21298 337 VA ALLEGHANY 265051005 265 51005 7140 0 VA BATH 265051017 265 51017 111108 199 VA HIGHLAND 265051091 265 51091 57071 0 VA ALLEGHANY 270051005 270 51005 229118 549 VA AMHERST 270051009 270 51009 75066 110 VA AUGUSTA 270051015 270 51015 131285 849 VA BATH 270051017 270 51017 163522 462 VA BEDFORD 270051019 270 51019 30852 130 VA BOTETOURT 270051023 270 51023 214436 886 VA CRAIG 270051045 270 51045 156887 393 VA GILES 270051071 270 51071 7519 0 VA HIGHLAND 270051091 270 51091 78038 0 VA MONTGOMERY 270051121 270 51121 13915 3 VA ROANOKE 270051161 270 51161 11114 87 VA ROCKBRIDGE 270051163 270 51163 238735 410 VA BUENA VISTA CITY 270051530 270 51530 1808 0 VA CLIFTON FORGE CITY 270051560 270 51560 687 0 VA COVINGTON CITY 270051580 270 51580 618 0 VA LEXINGTON CITY 270051678 270 51678 75 0 WV MONROE 270054063 270 54063 42603 122 WV PENDLETON 270054071 270 54071 977 19 VA ALBEMARLE 280051003 280 51003 283572 1583 VA AMHERST 280051009 280 51009 135222 505 VA APPOMATTOX 280051011 280 51011 55196 1014 VA BEDFORD 280051019 280 51019 14630 106 VA BUCKINGHAM 280051029 280 51029 227131 816 VA CAMPBELL 280051031 280 51031 26237 935 VA CUMBERLAND 280051049 280 51049 58656 771 VA FLUVANNA 280051065 280 51065 101121 598 VA GOOCHLAND 280051075 280 51075 22088 860 VA GREENE 280051079 280 51079 32693 319 VA LOUISA 280051109 280 51109 6427 39 VA NELSON 280051125 280 51125 215976 1519 VA ORANGE 280051137 280 51137 3127 112 VA CHARLOTTESVILLE CITY 280051540 280 51540 151 0 VA LYNCHBURG CITY 280051680 280 51680 12992 0 VA CHESTERFIELD 290051041 290 51041 5267 173 VA CUMBERLAND 290051049 290 51049 18988 310 VA GOOCHLAND 290051075 290 51075 75469 2818 VA HENRICO 290051087 290 51087 3858 813 VA POWHATAN 290051145 290 51145 74972 1557 VA RICHMOND CITY 290051760 290 51760 680 0 VA AMELIA 300051007 300 51007 119530 6802 VA APPOMATTOX 300051011 300 51011 42187 521 VA BUCKINGHAM 300051029 300 51029 14519 50 VA CHESTERFIELD 300051041 300 51041 25493 676 VA CUMBERLAND 300051049 300 51049 33941 691 VA NOTTOWAY 300051135 300 51135 52295 2646 VA POWHATAN 300051145 300 51145 24414 596 VA PRINCE EDWARD 300051147 300 51147 118756 4369 VA AMELIA 310051007 310 51007 9454 261 VA CHESTERFIELD 310051041 310 51041 23285 552 VA DINWDDIE 310051053 310 51053 28402 3941 VA NOTTOWAY 310051135 310 51135 4110 173 MD HOWARD 330024027 330 24027 21189 666 MD MONTGOMERY 330024031 330 24031 17838 860 MD ANNE ARUNDEL 340024003 340 24003 18409 976 MD HOWARD 340024027 340 24027 20714 757 MD PRINCE GEORGES 340024033 340 24033 8843 506 DE NEW CASTLE 370010003 370 10003 1106 2176 MD CECIL 370024015 370 24015 10536 4280 DE KENT 380010001 380 10001 8439 3944 DE NEW CASTLE 380010003 380 10003 4772 1092 MD CAROLINE 380024011 380 24011 7 6 Land Use in Acres by County Segment Pervious Non-Ag. Impervious asture Urban Hay Herb. Urban Manure Acres Water 30283 5682 16936 15059 895 0 122 898 1040 748 3449 388 1 364 635 1299 840 3262 283 0 410 0 2 0 156 2 0 21 735 1002 331 5527 241 0 94 421 1 192 296 1 0 0 4541 3919 3783 17603 1030 3 882 4350 5486 1958 32596 1697 1 987 127 115 51 1799 14 0 13 35 6 21 280 4 0 21 293 167 244 1146 22 0 12 6061 3357 4285 14257 1054 2 8481 15833 2656 7231 11079 400 4 373 1922 524 1601 7659 325 1 5291 1246 23 772 953 16 0 10 644 974 290 4838 331 0 151 233 274 162 646 181 0 7 12916 8004 7568 20811 1781 4 728 17559 6896 12415 41496 1847 6 945 946 576 432 626 136 0 18 1076 410 896 4216 70 1 7 2 0 0 1 0 0 502 9343 1151 3177 5095 586 0 2114 21232 695 3498 10837 245 1 0 19649 6613 5699 13650 2495 0 1136 8450 632 2526 2275 388 0 826 17808 2799 6284 2451 1095 13 63 21737 3474 7392 11576 906 0 506 2608 1166 1063 1845 507 1 448 32460 13665 13473 22222 4823 11 1927 13590 794 3982 7066 277 1 19 10 0 3 7 0 0 0 18349 393 3023 9289 153 1 0 218 9 78 156 6 0 0 2346 135 1163 1709 35 1 0 82136 17226 27315 6664 7054 13 2042 0 1026 0 661 790 0 102 0 693 0 24 537 0 48 0 1048 0 265 747 0 170 0 890 0 72 553 0 8 3266 94 852 2618 25 1 0 511 0 85 122 0 0 0 56584 28690 35045 38586 7613 5 2660 38685 13455 11563 10463 4722 1 1874 13361 2539 5388 10453 793 2 590 2129 6407 868 1332 3951 1 352 28747 6925 17910 62888 1897 23 2690 3351 6241 1373 2549 3273 1 318 8817 1749 4697 16830 501 4 469 22060 11828 13327 29618 3162 0 2717 3234 775 2250 9281 250 1 689 9812 5291 3975 7373 759 3 168 709 862 501 1645 169 0 39 34641 8373 13329 24500 1625 1 1565 952 557 435 650 64 0 3 0 3921 0 282 2213 0 11 0 10096 0 1782 6800 0 224 167 2073 94 1060 846 0 64 3544 532 1888 6786 186 2 65 10599 6681 7372 29983 2140 4 3526 288 9077 284 1439 5176 0 630 9234 5090 4703 21016 1714 8 1200 0 856 0 123 284 0 60 18035 2911 9817 47924 1163 19 950 6870 2157 2771 5316 716 1 118 1747 115 1089 3838 55 1 82 654 284 367 4455 181 0 298 7907 1317 4212 15192 331 4 419 18551 2664 9366 10928 1111 10 466 3535 530 1801 8227 176 3 244 30597 7879 14829 32337 2782 25 1688 693 21 377 1849 14 1 540 534 722 300 3628 268 0 1611 2860 412 943 3468 233 2 1344 1213 27 612 721 18 1 27 2987 1808 2008 8898 592 5 820 2036 2793 1802 6345 1063 3 634 432 10010 309 1977 5536 0 26 3395 21957 2283 7869 12733 5 188 289 9382 186 940 5428 0 90 213 40 240 1855 15 1 16 3921 754 1883 8280 262 9 596 335 420 347 2361 54 3 0 107 0 121 733 0 0 0 0 0 0 3 0 0 0 63 Model Lo Till 1203 447 252 0 1094 76 2260 6472 1407 562 146 2167 2854 957 66 957 49 4088 6279 170 535 0 228 505 434 84 3074 531 44 2459 378 0 436 18 149 4189 0 0 0 0 106 5 3000 387 1023 36 3470 237 1420 1538 681 580 253 2663 172 0 0 7 571 2231 274 2921 0 8982 526 211 29 1274 1604 1118 3560 345 24 1886 105 6010 5891 522 6832 84 1362 7823 3396 683 4 ------- Table 9. Forecasted 2000 Phase 4.2 Chesapeake Bay Watershed State County COSEG SEG FIPS Forest Hi Till MD KENT 380024029 380 24029 32708 26842 MD QUEEN ANNES 380024035 380 24035 31756 20063 MD QUEEN ANNES 390024035 390 24035 6278 4749 MD TALBOT 390024041 390 24041 4768 3659 DE KENT 400010001 400 10001 5108 3490 MD CAROLINE 400024011 400 24011 53172 37466 MD DORCHESTER 400024019 400 24019 6177 4863 MD QUEEN ANNES 400024035 400 24035 10941 7921 MD TALBOT 400024041 400 24041 20447 12649 DE KENT 410010001 410 10001 13945 8919 DE SUSSEX 410010005 410 10005 89995 35645 MD CAROLINE 410024011 410 24011 17287 9278 MD DORCHESTER 410024019 410 24019 26534 8699 MD WICOMICO 410024045 410 24045 38916 15338 DE SUSSEX 420010005 420 10005 202 246 MD SOMERSET 420024039 420 24039 22399 4392 MD WICOMICO 420024045 420 24045 39513 20110 MD WORCESTER 420024047 420 24047 24 18 DE SUSSEX 430010005 430 10005 11156 3148 MD SOMERSET 430024039 430 24039 106788 19616 MD WICOMICO 430024045 430 24045 28814 15709 MD WORCESTER 430024047 430 24047 109035 27441 VA ACCOMACK 430051001 430 51001 10500 5437 VA ACCOMACK 440051001 440 51001 67313 34009 VA NORTHAMPTON 440051131 440 51131 12374 36445 MD BALTIMORE 450024005 450 24005 3074 312 MD CECIL 450024015 450 24015 14243 2570 MD HARFORD 450024025 450 24025 42682 8292 PA CHESTER 450042029 450 42029 19418 3218 PA LANCASTER 450042071 450 42071 15257 25977 PA YORK 450042133 450 42133 3758 4145 MD BALTIMORE 470024005 470 24005 118556 6286 MD CARROLL 470024013 470 24013 6827 2091 MD HARFORD 470024025 470 24025 10196 1850 PA YORK 470042133 470 42133 1075 1495 MD BALTIMORE 480024005 480 24005 12737 575 MD BALTIMORE CITY 480024510 480 24510 1429 0 MD ANNE ARUNDEL 490024003 490 24003 10667 852 MD BALTIMORE 490024005 490 24005 3810 49 MD HOWARD 490024027 490 24027 7227 96 MD BALTIMORE CITY 490024510 490 24510 53 0 MD ANNE ARUNDEL 500024003 500 24003 17530 3581 MD CALVERT 500024009 500 24009 44912 7803 MD CHARLES 500024017 500 24017 10962 412 MD PRINCE GEORGES 500024033 500 24033 57579 8892 MD ST MARYS 500024037 500 24037 22562 2826 MD ANNE ARUNDEL 510024003 510 24003 14391 861 DC DISTRICT OF COLUMBIA 540011001 540 11001 364 0 MD MONTGOMERY 540024031 540 24031 5231 206 MD PRINCE GEORGES 540024033 540 24033 6246 700 VA FAIRFAX 550051059 550 51059 26294 216 VA FAUQUIER 550051061 550 51061 47509 5721 VA LOUDOUN 550051107 550 51107 4898 363 VA PRINCE WLLIAM 550051153 550 51153 57104 2291 VA MANASSAS CITY 550051683 550 51683 128 0 VA MANASSAS PARK CITY 550051685 550 51685 256 0 VA CAROLINE 560051033 560 51033 54967 4019 VA ESSEX 560051057 560 51057 87045 11719 VA KING GEORGE 560051099 560 51099 24216 3572 VA LANCASTER 560051103 560 51103 48208 8481 VA MIDDLESEX 560051119 560 51119 26538 5287 VA NORTHUMBERLAND 560051133 560 51133 709 385 VA RICHMOND 560051159 560 51159 77573 16601 VA SPOTSYLVANIA 560051177 560 51177 14708 479 VA STAFFORD 560051179 560 51179 7905 301 VA WESTMORELAND 560051193 560 51193 20850 9172 VA FREDERICKSBURG CITY 560051630 560 51630 1628 0 VA LANCASTER 580051103 580 51103 234 127 VA NORTHUMBERLAND 580051133 580 51133 27686 3883 VA RICHMOND 580051159 580 51159 82 32 VA CAROLINE 590051033 590 51033 5027 519 VA GLOUCESTER 590051073 590 51073 26033 4245 VA HANOVER 590051085 590 51085 42893 8527 VA JAMES CITY 590051095 590 51095 14141 699 VA KING AND QUEEN 590051097 590 51097 96399 8195 VA KING WILLIAM 590051101 590 51101 119559 7332 VA NEW KENT 590051127 590 51127 47723 2839 VA YORK 590051199 590 51199 20307 133 VA WLLIAMSBURG CITY 590051830 590 51830 379 0 VA CHARLES CITY 600051036 600 51036 76362 6902 VA CHESTERFIELD 600051041 600 51041 101944 3904 VA DINWDDIE 600051053 600 51053 688 595 VA HENRICO 600051087 600 51087 19665 4805 VA ISLE OF WIGHT 600051093 600 51093 27921 16730 VA JAMES CITY 600051095 600 51095 40006 1938 Land Use in Acres by County Segment Pervious Non-Ag. Impervious Pasture Urban Hay Herb. Urban Manure Acres Water 4136 2144 1962 10912 684 30 1317 962 3195 1339 7641 950 11 724 228 1731 317 1749 428 3 475 551 603 106 1774 94 2 410 297 131 307 2103 15 3 0 1476 5343 1317 19764 1271 25 563 265 2597 33 6775 1132 2 474 380 377 529 3042 70 4 9 1906 2452 365 6137 527 6 724 758 242 785 5374 46 7 0 3276 11250 1486 27777 3913 51 1146 365 1545 326 4667 623 6 48 474 1050 59 12009 370 3 748 1064 2560 930 11171 694 11 601 23 322 10 152 199 0 0 386 1732 211 4700 258 3 666 1395 11493 1219 14418 5648 14 641 2 0 1 11 0 0 0 289 116 131 2507 13 5 0 1723 5926 943 20990 1353 15 3015 1090 1932 953 11453 374 11 17 2439 3616 828 16370 1209 19 507 192 552 39 1671 83 1 38 1199 5022 244 10454 955 6 2205 1124 3356 61 6601 1335 0 1792 553 51 309 1846 16 1 0 2354 2906 1131 4929 1384 6 1134 6783 2622 4510 14828 1084 18 892 3512 1203 4630 5220 581 19 331 7086 1092 8159 6229 484 172 437 1119 878 1491 3658 427 6 20 11156 24045 6241 35293 13774 20 4468 1989 791 1814 3446 291 7 0 1513 5839 1006 3007 2425 4 359 404 138 537 1324 49 2 0 1021 22039 571 2934 11588 2 69 0 13922 0 310 20259 0 217 377 20947 270 1387 15510 0 827 87 7959 49 230 5064 0 172 431 5885 290 952 3334 1 27 0 765 0 95 1655 0 60 1586 6199 1132 8347 1357 1 660 4007 28099 1409 5315 4806 0 1569 311 3072 277 1491 601 0 36 5072 27958 3270 18624 10196 2 583 749 10152 614 2030 2435 2 482 381 15810 272 1609 8631 0 953 0 7748 0 434 9376 0 299 488 19485 432 942 10152 1 5 399 26948 257 1026 18582 0 63 1311 21162 841 8791 8884 0 734 31883 19538 11890 6977 4875 14 580 3112 3382 1740 607 1512 0 16 10292 44412 10599 22656 16332 8 1765 0 3521 0 327 2443 0 0 0 437 0 211 268 0 0 1215 3129 547 9143 855 0 398 5267 2143 1510 14844 682 0 967 2229 1248 2633 3842 387 0 302 392 2685 200 8931 445 0 1414 681 2543 307 7262 404 0 988 19 69 16 246 20 0 0 2203 4234 708 13834 707 1 992 1526 7562 1271 4989 3946 1 254 1005 7055 1329 4307 2902 0 207 2410 1510 375 3184 197 0 234 0 2384 0 901 1366 0 83 6 25 3 137 3 0 0 190 2185 160 2262 297 0 734 4 0 1 27 0 0 0 157 397 71 1174 57 0 0 608 3183 273 8561 2105 0 807 5510 12126 3228 8391 3294 2 1044 383 1357 296 3161 938 0 81 1323 1413 534 18762 380 4 1045 1553 1977 948 12670 653 7 2426 649 719 280 7378 347 0 1242 138 10378 44 3715 5216 0 1124 0 680 0 42 401 0 1 876 1036 319 12566 390 7 1800 3778 41655 2121 23797 22216 1 4278 432 2401 142 261 2201 0 86 1701 11905 1679 9738 5175 1 1364 1298 7617 368 6125 3451 31 956 1061 10075 821 8346 5964 0 2397 Model Lo Till 23115 57839 13690 8988 3006 25098 8746 22835 31072 7680 57638 6215 15644 4501 397 2439 5901 14 5090 10896 4610 22223 677 4233 877 1040 4697 12631 6328 4841 2287 20986 4278 2818 825 1921 0 456 164 867 0 1914 2911 933 1472 1245 460 0 1411 116 432 6229 559 7797 0 0 1807 24894 2626 2360 4162 222 5568 760 398 3057 0 35 2236 11 234 1975 1744 421 14644 25166 2221 22 0 5684 168 285 1617 3136 1167 ------- Table 9. Forecasted 2000 Phase 4.2 Chesapeake Bay Watershed State County COSEG SEG FIPS Forest Hi Till VA NEW KENT 600051127 600 51127 36975 1649 VA POWHATAN 600051145 600 51145 3064 60 VA PRINCE GEORGE 600051149 600 51149 44520 11643 VA SURRY 600051181 600 51181 41728 10423 VA YORK 600051199 600 51199 4447 16 VA COLONIAL HEIGHTS CITY 600051570 600 51570 904 0 VA HAMPTON CITY 600051650 600 51650 138 0 VA HOPEWELL CITY 600051670 600 51670 1059 0 VA NEWPORT NEWS CITY 600051700 600 51700 11430 0 VA PETERSBURG CITY 600051730 600 51730 2063 0 VA RICHMOND CITY 600051760 600 51760 2076 0 VA SUFFOLK 600051800 600 51800 2540 1598 VA WLLIAMSBURG CITY 600051830 600 51830 2157 0 VA CHARLES CITY 610051036 610 51036 8475 783 VA HANOVER 610051085 610 51085 16608 3750 VA HENRICO 610051087 610 51087 21034 2903 VA NEW KENT 610051127 610 51127 16053 963 VA ISLE OF WIGHT 620051093 620 51093 13433 10865 VA PORTSMOUTH CITY 620051740 620 51740 684 0 VA SUFFOLK 620051800 620 51800 36391 16540 VA CHESAPEAKE CITY 630051550 630 51550 1275 1191 VA PORTSMOUTH CITY 630051740 630 51740 276 0 MD BALTIMORE 650024005 650 24005 9991 411 MD CARROLL 650024013 650 24013 30748 7217 PA BRADFORD 700042015 700 42015 86632 12486 PA TIOGA 700042117 700 42117 1309 199 PA LANCASTER 710042071 710 42071 12062 32273 PA LEBANON 710042075 710 42075 5038 189 PA YORK 710042133 710 42133 18486 10107 PA BERKS 720042011 720 42011 12155 1256 PA CHESTER 720042029 720 42029 948 36 PA LANCASTER 720042071 720 42071 47376 83135 PA LEBANON 720042075 720 42075 6813 2452 MD WASHINGTON 730024043 730 24043 270 202 PA ADAMS 730042001 730 42001 14145 121 PA FRANKLIN 730042055 730 42055 119789 27754 MD WASHINGTON 740024043 740 24043 50132 8714 PA FRANKLIN 740042055 740 42055 18512 752 PA FULTON 740042057 740 42057 127372 10797 VA CLARKE 740051043 740 51043 3552 1917 VA FREDERICK 740051069 740 51069 83151 4054 VA WNCHESTER CITY 740051840 740 51840 291 0 WV BERKELEY 740054003 740 54003 92546 3964 WV JEFFERSON 740054037 740 54037 10387 1163 WV MORGAN 740054065 740 54065 52103 1310 MD CARROLL 750024013 750 24013 1397 811 MD FREDERICK 750024021 750 24021 2081 954 PA ADAMS 750042001 750 42001 33496 13785 MD BALTIMORE 760024005 760 24005 9038 383 MD CARROLL 760024013 760 24013 13836 3209 MD HOWARD 760024027 760 24027 11012 277 DE KENT 770010001 770 10001 22122 10206 MD CAROLINE 770024011 770 24011 8593 4426 MD QUEEN ANNES 770024035 770 24035 795 251 DE KENT 780010001 780 10001 3210 1658 DE SUSSEX 780010005 780 10005 13049 6389 DE NEW CASTLE 800010003 800 10003 3530 2178 MD CECIL 800024015 800 24015 55264 7949 PA CHESTER 800042029 800 42029 12763 3520 DE NEW CASTLE 810010003 810 10003 1534 1211 MD CECIL 810024015 810 24015 4437 1998 MD KENT 810024029 810 24029 27997 20204 MD QUEEN ANNES 820024035 820 24035 7479 4200 MD TALBOT 830024041 830 24041 19468 9737 MD DORCHESTER 840024019 840 24019 159326 21357 MD SOMERSET 840024039 840 24039 3 3 MD HARFORD 850024025 850 24025 51513 6946 MD BALTIMORE 860024005 860 24005 2660 159 MD BALTIMORE CITY 860024510 860 24510 265 0 MD ANNE ARUNDEL 870024003 870 24003 4999 381 MD ANNE ARUNDEL 880024003 880 24003 31643 2956 MD CALVERT 880024009 880 24009 22043 1298 DC DISTRICT OF COLUMBIA 890011001 890 11001 2033 0 MD MONTGOMERY 890024031 890 24031 4757 320 DC DISTRICT OF COLUMBIA 900011001 900 11001 4 0 VA ARLINGTON CITY 900051013 900 51013 332 0 VA FAIRFAX 900051059 900 51059 6279 121 VA ALEXANDRIA CITY 900051510 900 51510 194 0 VA FAIRFAX CITY 900051600 900 51600 80 0 VA FALLS CHURCH CITY 900051610 900 51610 25 0 DC DISTRICT OF COLUMBIA 910011001 910 11001 98 0 MD CHARLES 910024017 910 24017 37264 830 MD PRINCE GEORGES 910024033 910 24033 31896 3162 MD CHARLES 920024017 920 24017 122476 6011 MD PRINCE GEORGES 920024033 920 24033 2870 235 Land Use in Acres by County Segment Pervious Non-Ag. Impervious Pasture Urban Hay Herb. Urban Manure Acres Water 377 1608 162 4211 945 0 1827 358 354 182 801 76 0 9 1590 3581 1187 9674 2086 2 1267 645 3396 627 6116 737 40 1026 17 1842 5 455 814 0 22 0 1868 0 633 1291 0 201 0 3838 0 66 2711 0 162 0 2968 0 375 2145 0 90 0 13760 0 2456 11031 0 1270 0 3763 0 1202 2542 0 152 0 19626 0 1221 13312 0 1169 219 2114 9 708 766 0 362 0 1094 0 156 591 0 57 99 101 36 1425 85 1 57 2423 11811 1420 3279 3915 1 238 1029 27016 1015 5518 14302 0 389 220 1664 95 2429 836 0 364 843 1630 239 4090 578 20 824 0 2702 0 658 1874 0 664 2264 16440 94 7639 8067 4 4717 98 5645 59 125 3260 0 169 0 3404 0 171 2305 0 314 730 913 408 2293 395 1 1144 6864 5570 6260 11604 2635 24 1441 10330 3158 17998 17862 1888 61 1815 271 33 453 315 22 1 35 8803 5360 10136 7552 3344 213 7924 56 122 63 111 65 1 0 2729 3902 3635 9026 1984 14 139 490 699 926 1217 528 6 61 39 58 51 57 56 0 0 22677 32933 26111 18742 21383 549 1822 725 273 813 1406 116 16 25 331 12 199 342 8 2 103 59 135 168 98 91 0 251 21245 13270 33600 28492 7061 350 757 14275 7289 8597 14754 4611 67 4055 575 17 910 751 12 9 0 10077 1200 16152 2471 513 31 214 8335 90 5351 2292 48 3 19 28269 8569 20334 36370 4110 5 521 0 2877 0 1278 1532 0 0 23171 10755 24618 38168 4792 18 625 7127 1348 5054 8656 258 10 58 5213 879 4437 15072 427 0 87 771 55 703 1383 15 3 178 902 32 905 960 16 5 69 6757 4596 19136 10972 2752 33 476 681 1966 381 2126 963 1 34 3052 3072 2783 5120 1284 11 299 1240 1332 833 3573 620 2 49 867 1243 898 6107 140 8 42 174 658 156 2219 75 3 14 12 43 17 98 5 0 0 141 236 146 991 39 1 0 587 1780 266 4995 434 9 0 213 422 241 1587 92 1 107 7282 13674 3497 15214 4936 17 861 3841 1622 5064 5705 633 21 406 118 41 134 919 12 0 0 1830 250 879 3862 105 4 257 2761 1489 1310 6850 547 20 1522 201 6142 280 1399 2426 2 1865 1467 9639 281 4548 3233 5 3009 1164 5116 145 29290 1364 8 12650 0 1 0 3 0 0 12 5682 23936 3777 11343 11073 15 772 282 14800 158 631 14528 1 743 0 6590 0 120 6218 0 67 169 10245 120 633 5373 0 587 1309 15226 935 6272 7140 1 1292 666 9170 234 877 2148 0 163 0 6852 0 87 7158 0 220 757 17759 670 1518 11210 1 140 0 46 0 61 46 0 50 0 8941 0 -2 7266 0 68 737 68250 473 2019 32293 0 847 0 4528 0 -119 5056 0 25 0 2318 0 16 1582 0 0 0 672 0 3 571 0 0 0 1874 0 56 1395 0 36 627 15986 558 2869 5229 0 665 1804 34364 1163 6111 14032 1 248 4543 28952 4046 22022 7445 2 1551 134 680 87 483 128 0 0 Model Lo Till 1290 113 2229 5642 3 0 0 0 0 0 0 340 0 644 767 977 754 2037 0 3515 98 0 1373 14765 198 16 6014 106 5578 1294 70 15492 1372 472 67 52044 20332 1409 2111 1290 2833 0 7339 8848 705 1659 1189 7614 1280 6565 2495 8789 2965 722 1428 10331 1362 14529 6922 758 3652 13148 12107 23918 38409 2 10581 531 0 203 1580 484 0 2192 0 0 243 0 0 0 0 1878 524 13607 39 ------- Table 9. Forecasted 2000 Phase 4.2 Chesapeake Bay Watershed Model Land Use in Acres by County Segment State County COSEG SEG FIPS Forest Hi Till MD ST MARYS 920024037 920 24037 88335 19160 VA LANCASTER 930051103 930 51103 6574 1659 VA NORTHUMBERLAND 930051133 930 51133 10942 2675 VA ESSEX 940051057 940 51057 9201 1445 VA GLOUCESTER 940051073 940 51073 59684 6445 VA KING AND QUEEN 940051097 940 51097 34798 2055 VA MATHEWS 940051115 940 51115 29620 4097 VA MIDDLESEX 940051119 940 51119 23985 3168 VA YORK 950051199 950 51199 4393 49 VA POQUOSON CITY 950051735 950 51735 3033 0 VA YORK 955051199 955 51199 888 6 VA HAMPTON CITY 955051650 955 51650 5319 0 VA NEWPORT NEWS CITY 955051700 955 51700 340 0 VA POQUOSON CITY 955051735 955 51735 2155 0 VA NORTHAMPTON 960051131 960 51131 0 0 VA CHESAPEAKE CITY 960051550 960 51550 1885 5854 VA HAMPTON CITY 960051650 960 51650 1 0 VA NORFOLK CITY 960051710 960 51710 627 0 VA PORTSMOUTH CITY 960051740 960 51740 171 0 VA VIRGINIA BEACH 960051810 960 51810 179 68 VA NORFOLK CITY 965051710 965 51710 406 0 VA VIRGINIA BEACH 965051810 965 51810 4279 782 VA PRINCE WLLIAM 970051153 970 51153 24844 118 VA FAUQUIER 980051061 980 51061 1943 36 VA KING GEORGE 980051099 980 51099 51851 1384 VA NORTHUMBERLAND 980051133 980 51133 34581 5348 VA PRINCE WLLIAM 980051153 980 51153 7107 24 VA RICHMOND 980051159 980 51159 28 60 VA STAFFORD 980051179 980 51179 75496 687 VA WESTMORELAND 980051193 980 51193 53838 8672 MD ST MARYS 990024037 990 24037 6666 1309 23228978 2506888 Pervious Non-Ag. Impervious Pasture Urban Hay Herb. Urban Manure Acres Water 5079 23706 4165 14608 5115 12 2760 77 839 39 1751 148 0 561 131 531 110 1607 97 0 522 650 64 186 1820 39 0 50 923 5359 414 13052 2422 0 1364 332 53 134 4657 36 1 24 1827 2852 1145 11055 1090 0 1836 408 673 184 4431 134 0 265 51 6176 16 1037 4169 0 554 0 1099 0 1152 661 0 395 7 1397 2 121 1066 0 95 0 10526 0 2106 7732 0 596 0 2167 0 123 1617 0 66 0 617 0 449 403 0 54 0 2 0 0 8 0 5 479 20060 291 311 14299 2 999 0 11 0 0 13 0 3 0 12555 0 415 11909 0 749 0 4397 0 135 3683 0 141 8 4616 4 4 3687 0 397 0 4005 0 347 3184 0 538 89 23609 47 378 16262 0 2223 529 5837 545 1306 2768 0 239 202 206 75 45 39 0 0 1843 7720 2177 2845 1674 0 755 553 2071 467 6924 367 0 1478 106 825 110 272 339 0 288 8 31 3 56 5 0 0 2294 22524 3033 10788 6661 1 1285 5695 6568 887 7563 1452 1 1835 347 4393 284 910 1590 1 635 2967963 2543203 2215041 4125530 1211706 8613 423311 Lo Till 8439 462 1540 3071 2999 3672 1376 2494 8 0 1 0 0 0 0 482 0 0 0 12 0 136 401 39 3742 12480 81 20 908 20234 576 1881166 ------- Section 5. Airshed, Watershed, and Estuarine Model Linkages Regional Acid Deposition Model A link between the Regional Acid Deposition Model (RADM) and the Phase 4.2 Watershed Model is forged to incorporate RADM output data into Watershed Model input decks for running scenarios. The RADM model is usually based on an 80x80-km grid. For purposes of simulating atmospheric deposition loads to the Chesapeake Bay Watershed Model, a refined 20x20-km grid is used (Figure 11). Using GIS, the Phase 4.2 Watershed Model segments are overlain with the refined 20x20-km grid to determine the percentage of each RADM grid cell falling within each Watershed Model segment (Figure 12). Chesapeake Bay Water Quality Model The Phase 4.2 Watershed Model results provide input information for the Bay water quality model, the Chesapeake Bay Estuary Model Package (CBEMP). In order to refine the linkage between the two models, a new and more extensive segmentation of the below fall line watershed model segments is developed. Using GIS, below fall line sub- segments are created based on 11-Digit HUCS and the relative position of adjoining water quality model grid cells. Sub-segments are wholly contained within the larger watershed model segments. The final cover contains 259 sub-segments. Each sub- segment is assigned a five-digit identification number. The first three digits are the segment in which the sub-segment falls. The last two are sequential, from the smallest to the largest sub-segment in each segment. An overlay of the Phase 4.2 Watershed Model sub-segment's coverage and the water quality model grid cell's coverage displays the location of sub-segments relative to grid cells. The Chesapeake Bay Program modeling team assigned each sub-segment to a cell or set of cells for the purpose of loading watershed model output to the water quality model. In cases where a sub-segment delivers output to more than one cell, the load is divided equally among the number of cells associated with that sub-segment. If a cell straddles two sub-segments, a portion of load from each sub-segment is applied. Figure 13 shows the Chesapeake Bay Watershed Model sub-segments and the water quality model grid of the Chesapeake Bay Estuary Model Package. In order to load the water quality model more accurately, sub-segment land use is developed. The Chesapeake Bay Program Land Use (CBPLU) cover is overlain with the sub-segment cover to obtain CBPLU land use by sub-segment. These data were used to proportion out the Phase 4.2 Watershed Model land use by the spatial distribution of land cover in the CBPLU. In other words, assume model segment X has two sub-segments, sub-segment IX and sub-segment 2X. If 75% of the CBPLU woody and wetlands in Segment X are found in sub-segment IX, than 75% of the Phase 4.2 Forest found in segment X are assigned to sub-segment IX, and the remaining 25% is assigned to sub- 67 ------- segment 2X. Similarly, if 60% of the CBPLU Herbaceous in Segment X is found in sub- segment 2X, then 60% of each agricultural Phase 4.2 land use will be assigned to sub- segment 2X and 40% to sub-segment IX. After partitioning Phase 4.2 land use to each sub-segment, simulated total flow, nutrient, and sediment loading are delivered to the adjacent water quality model cells. 68 ------- Figure 11 Regional Acid Deposition Model (RADM) Refined Grid (20 x 20 km) Domain 400 400 800 2 Miles N + r'hr'^^nri^k^ Rthij ------- Regional Acid Deposition Model Grid, e Chesapeake Bay Watershed Model Segments, and Chesapeake Bay Water Quality Model Cells ------- Phase IV Chesapeake Bay Watershed Model Below Fall Line Model Sub-Segments and Chesapeake Bay Water Quality Model Cells Figure 13 Location of the Below Fall Line Sub-Segmen Chesapeake Bay Watershed 10 0 10 20 Miles Chesapeake Bay Program ------- Section 6. Chesapeake Bay Estuary Model Cells Identified as Potential SAV Habitat In order to fully a littoral zone submerged aquatic vegetation (SAV) sub-model into the Chesapeake Bay Estuary Model Package (CBEMP), it was necessary to define those shallow water littoral zone model cells are capable of supporting SAV growth. These grow cells were then further subdivided into three categories of model cells to reflect the three representative Bay SAV species for which the Bay water quality model littoral zone SAV sub-model would be parameterized. Identification of SAV Grow Cells In 1992, the Chesapeake Bay Program developed a series of tiered SAV distribution restoration target maps as part of the SAV Technical Synthesis1 based on both present and historical SAV distribution patterns and understanding of the physical habitat conditions limiting potential SAV distribution. The Tier I target, adopted by the Chesapeake Executive Council as a formal Bay Program goal in 1993, delineated restoration of SAV to areas currently or previously inhabited by SAV as mapped through regional and Bay wide aerial surveys from 1971 through 1990. The Tier II target delineated restoration of SAV to all shallow water areas delineated as existing or potential SAV habitat down to the one meter depth contour. The Tier III target delineated restoration of SAV to all shallow water areas delineated as existing or potential SAV habitat down to the two meter depth contour. The GIS coverage of the Chesapeake Bay Water Quality Model segmentation was overlaid onto the Tier III Chesapeake Bay SAV Distribution Restoration Target map. Through visual inspection of the map overlay, the individual CBEMP cells which overlaid onto part of, or were in close proximity to, the Tier III target coverage were identified as SAV grow cells as described below. As the CBEMP segmentation and the Bay shoreline GIS shoreline coverage did not exactly correspond (and in some case diverged from each other), the following series of decision rules were developed. In cases where there was clearly no potential SAV habitat along the Bay shoreline, the adjacent outer model cell depicting that shoreline and adjoining littoral zone habitat was designated a SAV no-grow cell and not considered further. The littoral region of Calvert Cliffs provide an example where elevation and relatively high energy beaches preclude the growth of SAV. In cases where there was clearly potential SAV habitat along the shoreline, adjacent outer model cells that depict the shoreline and adjoining littoral zone habitat are designated a SAV grow cells, such as the Patuxent River shoreline. In shallow water regions where potential SAV habitat extends out away from the shoreline into 1 Batiuketal. 1992. Chesapeake Bay Submerged Aquatic Vegetation Habitat Requirements and Restoration Goals: A Technical Synthesis. CBP/TRS 83/92. Chesapeake Bay Program, Annapolis, Maryland. 72 ------- shallow water areas, associated model cells were designated SAV grow cells. For example, the shallow water areas of Tangier Sound and just north of South Marsh Island are designated SAV grow zones. The compiled listing of SAV grow cells were entered into a spreadsheet and quality assured through a visual cross check and comparison of each spreadsheet listed grow cell with the original GIS Tier Ill/Model Segmentation overlay maps on which the SAV grow cells were identified. Partitioning the SAV Grow Cells by the Three Modeled Species The Chesapeake Bay Program Living Resources SAV Workgroup decided to select Vallisneria americana, Potamogeton pectinatus, and Zostera marina as the three species for which the Bay water quality model littoral zone SAV sub-model would be parameterized. These three species were considered the most representative species for the modeling objective as: 1) all three species are native to Chesapeake Bay; 2) their combined existing and potential habitat distribution covered the full range of Bay salinity, and 3) their minimum light requirements were generally the most conservative for their habitat range. The Chesapeake Bay Program developed a series of distribution restoration target maps as part of the production of the 1992 SAV Technical Synthesis based on both existing and historical SAV distribution patterns. The information on actual past and present species distribution derived from aerial and ground surveys of present SAV distribution, survey from past pollen and seed records, and the published literature. Potential distribution was based on the above information and the individual species distribution limits as defined by their upper and lower salinity tolerances. The Chesapeake Bay Program Office staff overlaid the Chesapeake Bay Distribution Restoration Target maps for Vallisneria americana, Potamogeton pectinatus, and Zostera marina from the SAV Technical Synthesis to produce a single map outlining the actual/potential distribution of these three species. This integrated map of the three species distribution was further refined through an analysis of distribution of 1985-1995 monthly mean salinity data from all the Chesapeake Bay Water Quality Monitoring Program stations. The integrated species distribution map was further refined to ensure that all areas of the Bay where the mean salinity was generally (between the 25th and 75th percentile) below 5 part per thousand (ppt) were delineated as Vallisneria habitat, areas with a mean salinity between 5 and 18 ppt were delineated as Potamogeton habitat, and areas with a mean salinity above 18 ppt were delineated as Zostera habitat. This analysis involving monthly mean salinity data resulted in relatively minor refinements to the integrated species distribution map developed originally based on the SAV Technical Synthesis species restoration target maps. The Chesapeake Bay Program Living Resources Subcommittee's SAV Workgroup reviewed and approved the final integrated species distribution map. The integrated species distribution map was then overlaid on top of CBEMP segmentation map on which the SAV grow model cells had been delineated (Figure 14). Based on visual and then GIS analysis of the overlay, each 73 ------- delineated SAV grow cell was categorized and labeled as either a Vallisneria, Potamogeton, or Zostera SAV grow cell. 74 ------- Figure 14 Chesapeake Bay Estuary Model Package SAY Grow Cells N + SAV Grow Cells WQM Grid Cells 20 0 20 Miles Chesapeake Bay Program ------- This report is cited in the following way: Hopkins, K., B. Brown, L.C. Linker, R.L. Mader, Jr.. 2000. Chesapeake Bay Watershed Model Land Use and Model Linkages to the Airshed and Estuarine Models A Report of the Modeling Subcommittee. January, 2000. Chesapeake Bay Program Office, Annapolis, MD. httvJ/www.chesapeakebav.net/modsc.htm - Publications Tab. Date Retrieved: retrieval date ------- |