The State of the Delaware River Basin and Estuary: 400 years from Henry Hudson to JFK
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1 The State of the Delaware River Basin and Estuary: 400 years from Henry Hudson to JFK
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6 600 A.D.- Lenni Lenape fish in pristine waters Henry Hudson sails to Capes Swedes sail to Christinakill William Penn founder of Philadelphia Declaration of Independence signed DuPont found mills along Brandywine.
7 1880 Drinking water causes cholera million lb oysters harvested from bay million lb of shad caught in river Oyster, shad, sturgeon fishery begin to collapse. WWI Industries dump raw sewage in Clyde of America Supreme Court OKs NYC diversion of 400 mgd DE, NJ, NY, and PA create INCODEL. Trenton only city with sewage treatment.
8 1940 Delaware River one of most grossly polluted in world. WWII Pilots comment on rotten egg smell. Navy ships turn to color of rainbow Delaware River outstanding example of destruction of bass habitat by industrial and domestic pollution towns have wastewater plants. 1955, Hurricanes Connie and Diane hammered the Delaware Basin causing killer floods and leaving an oily film of silt and a terrible stench an aroma of feces and rotting flesh Only 100,000 bushels of oysters harvested due to MSX disease.
9 1961 JFK signs Delaware River Basin Compact DRBC issues waste load allocations Earth Day. Richard Nixon creates USEPA gross pollution of tidal freshwater had extirpated the striped bass from its historical chief spawning and nursery areas in the Delaware River 1972 Richard Nixon signs Clean Water Act USEPA official says Delaware River/Bay will never meet fishable standards NY bans phosphate detergent Water quality in the tidal Delaware River improving but still poor, extirpation of the remnant (shad) runs is distinct possibility.
10 1985 Over $1.5 billion spent on wastewater treatment Delaware River and Bay observed best water quality in 50 years Increased shad, striped bass, and white perch coincide with improved water quality States form Delaware Estuary Program. Over 90% of Delaware Estuary meet fishable and swimmable goals American shad/striped bass return to river/bay DO at Ben Franklin Bridge exceeds 4 ppm.
11 Dissolved Oxygen during High Water Slack Delaware River (Sep 15, 1958) DO Saturation (%) Miles above Delaware Bay
12 8 DO and NH3 Profile Delaware River and Bay (July 1967) 6 mg/l River Mile Dissolved Oxygen NH3
13 CBOD Loading along the Delaware Estuary CBOD (M lb) Municipal Industrial
14 1.5 Summer Ammonium N and Total Phosphorus Delaware River at Marcus Hook, PA July 4-year moving average Total Phosphorus Ammonium N
15 Dissolved Oxygen (mg/l) Mean Annual Dissolved Oxygen Delaware River and Bay River Mile
16 30 25 Water Quality Trends along Penna. Streams in the Delaware River Basin No. of Streams Nitrite + Nitrate Total P Improving Constant Degrading
17 14 Dissolved Oxygen Delaware River at Ben Franklin Bridge, Philadelphia USGS DO (mg/l) J-60 J-70 J-80 J-90 J-00 J-10
18 20 Dissolved Oxygen Lehigh River at Easton, PA USGS DO 10 (mg/l) 5 0 J-60 J-70 J-80 J-90 J-00 J-10
19 20 Dissolved Oxygen Schuylkill River at Linwood, PA USGS DO 10 (mg/l) 5 0 J-80 J-90 J-00 J-10
20 20 Dissolved Oxygen Brandywine Creek at Chadds Ford, PA USGS DO (mg/l) J-70 J-80 J-90 J-00 J-10
21 0.5 Total Phosphorus Delaware River at Trenton, N. J. 0.4 (mg/l) J-70 J-75 J-80 J-85 J-90 J-95 J-00 J-05
22 Total Phosphorus Lehigh River at Glendon, PA (mg/l) J-70 J-75 J-80 J-85 J-90 J-95 J-00 J-05
23 1.0 Total Phosphorus Schuylkill River at Philadelphia, PA (mg/l) J-70 J-75 J-80 J-85 J-90 J-95 J-00 J-05
24 0.5 Total Phosphorus Brandywine River above Wilmington, DE 0.4 (mg/l) J-80 J-85 J-90 J-95 J-00 J-05
25 50 Total Suspended Sediment Schuylkill River at Philadelphia, PA 40 (mg/l) J-70 J-75 J-80 J-85 J-90 J-95 J-00 J-05
26 9,000,000 Population Delaware River Basin 8,000,000 7,000,000 6,000,000 5,000,000 4,000,000 3,000,000 2,000,000 1,000,
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28 1930 Land Use Delaware River Basin Land Use Delaware River Basin Developed Agriculture Forest Water/Wetlands Developed Agriculture Forest Water/Wetlands
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30 Land Use Change in the Delaware River Basin Developed sq mi Agriculture Water/Wetlands Barren Forest -80 sq mi Land Use Transition in the Delaware River Basin Developed Agriculture Forest WaterWetland
31 LE 2 DB 2 DB Land Use, 2001 Delaware River Basin LE 3 LE 1 UE 2 UE 1 SV 3 SV 2 SV 1 LC 1 UC 2 UC 1 LV 3 LV 2 LV 1 NM 1 LW 1 EW 3 EW 2 EW 1 Forest Agriculture WaterWetland Developed Barren/Bare Square Miles
32 Change in Land Use Area in the Delaware River Basin (sq mi) 0 EW 1 EW 2 EW 3 LW 1 NM 1 LV 1 LV 2 LV 3 UC 1 UC 2 LC 1 SV 1 SV 2 SV 3 UE 1 UE 2 LE 1 LE 3 LE 2 DB 2 DB Developed Agriculture Forest Water/Wetlands
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35 (sq mi) Change in Water plus Wetlands, Delaware River Basin EW 1 EW 2 EW 3 LW 1 NM 1 LV 1 LV 2 LV 3 UC 1 UC 2 LC 1 SV 1 SV 2 SV 3 UE 1 UE 2 LE 1 LE 3 LE 2 DB 2 DB 1 Subwatersheds
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37 Forest Change in the Delaware River Basin, EW 1 EW 2 EW 3 LW 1 NM 1 LV 1 LV 2 LV 3 UC 1 UC 2 LC 1 SV 1 SV 2 SV 3 UE 1 UE 2 LE 1 LE 3 LE 2 DB 2 DB 1 (sq mi)
38 Superfund Sites by DRBC Subwatershed 414 # of EPA CERLIS Sites EW 1 EW 2 EW 3 LW 1 NM 1 UC 1 UC 2 LV 1 LV 2 LV 3 LC 1 SV 1 SV 2 SV 3 UE 1 UE 2 LE 1 LE 2 LE 3 DB 1 DB 2 Subwatershed
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40 Schuylkill River at Philadelphia, PA (SV3) 1.0 Total Phosphorus (mg/l) J-70 J-75 J-80 J-85 J-90 J-95 J-00 J-05
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46 Dissolved Oxygen (5-yr Median) Delaware River and Bay 15 DO (mg/l) RM 304 RM 253 RM 246 RM 175 RM 134 RM 100 RM 82 RM 55 RM 22 Callicoon NY Port Jervis NY Montague NJ Riegelsville NJ Trenton NJ Ben Franklin Bridge Chester PA Reedy Island DE Egg Island, NJ DRBC DO Standard
47 Total Phosphorus (5-yr Median) Delaware River and Bay 0.2 Total P (mg/l) RM 304 RM 253 RM 246 RM 175 RM 134 RM 100 RM 55 RM 22 Callicoon NY Port Jervis NY Montague NJ Riegelsville NJ Trenton NJ Ben Franklin Bridge Reedy Island DE Egg Island NJ DRBC Total P Standard
48 Nitrate + Nitrite N (5-yr Median) Delaware River and Bay 2 N (mg/l) RM 22 RM 55 RM 100 RM 134 RM 175 RM 246 RM 253 RM 304 Egg Island NJ Reedy Island DE Ben Franklin Bridge Trenton, NJ Riegelsville NJ Montague NJ Port Jervis NY Callicoon NY DRBC N Standard
49 Total Susp. Sediment, (10-Yr Median) Delaware River and Bay 60 TSS (mg/l) Callicoon NY Port Jervis NY Montague NJ Riegelsville NJ Trenton NJ Ben Franklin Bridge, PA Reedy Island DE Egg Island NJ Mouth of Bay DRBC TSS Standard
50 20 Cooper River at Haddonfield, NJ 10 Cooper River at Haddonfield, NJ Dissolved Oxygen (mg/l) Total Nitrogen (mg/l) J-70 J-75 J-80 J-85 J-90 J-95 J-00 J-05 0 J-70 J-75 J-80 J-85 J-90 J-95 J-00 J Cooper River at Haddonfield, NJ Phosphorus (mg/l) J-70 J-75 J-80 J-85 J-90 J-95 J-00 J-05
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54 Median Atrazine Concentrations Surface Water in the Delaware River Basin 1.0 Median Atrazine (ug/l) EW 1 EW 2 EW 3 LW 1 NM 1 UC 1 UC 2 LV1 LV 2 LV 3 LC 1 SV 2 SV 3 LE 1 UE 1 UE 2 DB 2 Subwatershed
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56 40 Water Temperature Delaware River at Trenton, NJ 35 Water Temperature (deg C) Year Yearly Median Summer Median Summer Max 5 per. Mov. Avg.
57 40 Water Temperature Delaware River at Reedy Island, DE 35 Water Temperature (deg C) Year Yearly Median Summer Median Max Temp 5 per. Mov. Avg.
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60 Delaware River and Bay Salt Line Salt Line Upstream Location of Salt Line (River Mile) C & D Canal Del Mem Bridge Mouth of Christina River DE / PA State Line Chester, PA Mouth of Schuylkill Ben Franklin Bridge Year Farthest Recorded Upstream Location* Phila Torresdale Water Intake
61 Mean Annual Temperature at Wilmington Airport, DE ( ) mean: mean: 54.6 Year mean: 54.9 Temperature (
62 Precipitation at Wilmington Airport, DE ( ) mean: 43.29" mean: 45.89" mean: 42.35" Year Precipitation (inch
63 Maximum Peak and Minimum Daily Flow Delaware River at Trenton, NJ, USGS Gage cfs/sq mi Year Peak Flow Minimum Flow 5 per. Mov. Avg.
64 Dec 1-15 Dec Oct 1-15 Oct Nov 1-15 Nov Total Runoff Delaware River at Trenton Feb Mar 1-15 March Apr 1-15 Apr May 1-15 May Jun 1-15 Jun Jul 1-15 Jul Aug 1-15 Aug Sep 1-15 Sep Jan 1-15 Jan Feb 1-15 Total runoff (cubic feet)
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67 35 Oyster Landings in the Delaware Estuary Million lb
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69 Delaware Bay Oyster Seed Beds Year Oyster Spat Mean Oyster Mean Spat Average number per bushel
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72 Horseshoe Crab Spawning Activity Delaware and New Jersey 1.6 Index of Spawning Activity Delaware New Jersey
73 500,000 Commercial Horseshoe Crab Landings in the Delaware Bay 400,000 Crabs 300, , , DE NJ
74 Synthesized Blue Crab Harvest in the Delaware Estuary Million lb Year
75 Blue Crab Landings Delaware Estuary Blue Crab Landings (in 1000s kg) NJ DE
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78 Catch per Haul (95% C. I.) Delaware River from C & D Canal to Trenton Catch American Shad White Perch Striped Bass
79 20,000,000 American Shad Harvest Delaware River Estuary Synthesized Harvest (lb) 15,000,000 10,000,000 5,000,
80 1,000,000 American Shad Spawning Population Delaware River at Lambertville, NJ Shad Population 800, , , , Petersen Hydroacustics
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83 45000 Recreational Striped Bass Harvest Delaware Estuary Striped Bass Harvest
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85 35 Annual Catch Rates of Atlantic Sturgeon Delaware River 30 Altantic Sturgeon Catch (number/net hour)
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87 Mean Weakfish Abundance Delaware Estaury 350 Mean Weakfish Abundance No. per Nautical Mile
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92 50 Bald Eagle Nesting Pairs in the Delaware River Basin 40 Nesting Pairs Delaware New Jersey New York Pennsylvania
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94 Black Bear Harvest Delaware River Basin States New York Pennsylvania New Jersey No. of Harvested Black Bears
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