Watershed Profile: Susquehanna River near Peach Bottom PA


Watershed Overview
The Susquehanna River begins at the outflow of Otsego Lake in Cooperstown, NY. The River flows 444 miles through New York, Pennsylvania and Maryland, before reaching its confluence with the Chesapeake Bay in Havre de Grace, MD. The monitoring station is in the Lower Susquehanna Subbasin near the town of Peach Bottom, PA.
Drainage Characteristics
  • Drainage Area (square miles): 26980.63
  • Total Stream Length (miles): 48707.20
  • Average Annual Flow at Station (NHD) (cfs): 39826.00
  • Population (2010): 4094058
Stream Classifications (Pennsylvania)
Designation Miles
Exceptional Value 2063.21
High-Quality Cold Water Fisheries 9848.43
High-Quality Trout Stocked Fisheries 101.90
High-Quality Warm Water Fisheries 58.25
Trout Stocked Fisheries 3397.15
Warm Water Fisheries 8990.74
Total 24459.68
Stream Classifications (New York)
Classification Use Miles
Class A Drinking Water Source 154.70
Class A (T) Drinking Water Source With Trout Population 33.94
Class A (TS) Drinking Water Source With Trout Spawning 24.49
Class AA Drinking Water Source 31.09
Class AA (T) Drinking Water Source With Trout Population 7.13
Class AA (TS) Drinking Water Source With Trout Spawning 3.08
Class B Contact Recreation (Not Drinking Water Source) 369.04
Class B (T) Contact Recreation With Trout Population 53.09
Class C Support Fisheries (Non-Contact) 7630.30
Class C (T) Support Fisheries, Non-Contact With Trout Population 1990.31
Class C (TS) Support Fisheries, Non-Contact With Trout Spawning 884.85
Class D Fishing, But Does Not Support Fish Propagation 8.98
Exempt Exempt 0.03
Total 11191.03
  • Land Use
  • Description Percentage
    Water 1.03
    Developed Open Space 5.39
    Low Urban 2.51
    Medium Urban 1.26
    High Urban 0.51
    Barren 0.29
    Deciduous Forest 44.25
    Coniferous Forest 2.54
    Mixed Forest 15.10
    Shrub Scrub 0.56
    Grassland Herbaceous 0.69
    Pasture/Hay 14.79
    Cropland 9.22
    Wetlands 1.87

  • Natural Gas
  • Natural Gas Pads 1929
  • Natural Gas Water Withdrawals 109

  • Public Water Supply Withdrawals
  • Groundwater 5751
  • Surface Water 242

NPDES Discharges
Description Count
Concentrated Animal Feeding Operation 259
Mining/Quarry 679
Stormwater 2385
Wastewater Treatment Plant/Sewage Treatment Plant 641
Other 1386

Stream Impairments
Source Category Miles
Acid Mine Drainage Aquatic Life 1874.60
Animal Feeding Operations Aquatic Life 7.30
Atmospheric Deposition Aquatic Life 493.40
Channel Erosion/Incision from Upstream Hydromodifications Aquatic Life 17.30
Channelization Aquatic Life 78.10
Coal Mining Aquatic Life 5.20
Combined Sewer Overflows Aquatic Life 18.20
Construction Aquatic Life 51.10
Crop Production Aquatic Life 289.50
Dam or Impoundment Aquatic Life 65.30
Erosion from Derelict Land Aquatic Life 18.20
Forest Roads Aquatic Life 1.90
Golf Courses Aquatic Life 26.40
Grazing in Riparian Zones Aquatic Life 282.30
Habitat Modification Aquatic Life 898.40
Highway/Road/Bridge Runoff Aquatic Life 286.40
Highways, Roads, Bridges Construction Aquatic Life 3.90
Impacts from Hydrostructure Flow Regulation Aquatic Life 78.80
Impervious Surface/Parking Lot Runoff Aquatic Life 23.10
Industrial Point Source Aquatic Life 49.10
Landfills Aquatic Life 3.60
Municipal Point Source Aquatic Life 41.70
Natural Sources Aquatic Life 15.60
On-Site Treatment Systems Aquatic Life 32.60
Removal of Vegetation Aquatic Life 117.70
Rural (Residential) Aquatic Life 159.30
Silviculture Aquatic Life 6.40
Site Clearance Aquatic Life 19.50
Source Unknown Aquatic Life 244.80
Streambank Modifications Aquatic Life 33.20
Surface Mining Aquatic Life 31.00
Urban Runoff/Storm Sewers Aquatic Life 670.10
Industrial Point Source Fish Consumption 10.80
Source Unknown Fish Consumption 607.60
Atmospheric Deposition Fish Consumption 693.70
Source Unknown Potable Water Supply 15.20
Acid Mine Drainage Potable Water Supply 85.60
Grazing in Riparian Zones Recreational 6.70
Rural (Residential) Recreational 93.80
On-Site Treatment Systems Recreational 54.30
Urban Runoff/Storm Sewers Recreational 244.10
Combined Sewer Overflows Recreational 11.70
Source Unknown Recreational 5763.60
Underlying Geology
Rock Type Percentage
Conglomerate 0.38
Dolomite 2.17
Limestone 5.31
Other 2.49
Quartzite 2.67
Sandstone 36.79
Shale 50.17
Map
Recent Results
Sample Time 4/23/2025 8:15:00 PM
Temperature  (C) 17.1
Specific Conductivity  (mS/cm)
PH 8.0235
Turbidity  (NTU+) 17.02778
Dissolved Oxygen  (mg/L)
Dissolved Oxygen (last month of readings)
pH (last month of readings)
Specific Conductivity (last month of readings)
Temperature (last month of readings)
Turbidity (last month of readings)