Watershed Profile: East Branch Octoraro Creek at Street Road


Watershed Overview
East Branch Octoraro Creek drains portions of southern Lancaster County and Eastern Chester County before joining the West Branch Octoraro Creek in the Octoraro Lake. The monitoring station is location upstream of the confluence with Bell Run near Street Road.
Drainage Characteristics
  • Drainage Area (square miles): 55.61
  • Total Stream Length (miles): 88.7
  • Average Annual Flow at Station (NHD) (cfs): 87.1
  • Population (2020): 11,711
Stream Classifications (Pennsylvania)
Designation Miles
High-Quality Cold Water Fisheries 4.63
Trout Stocked Fisheries 84.08
Total 88.71
  • Land Use
  • Description Percentage
    Water 0.04
    Developed Open Space 8.28
    Low Urban 3.31
    Medium Urban 1.45
    High Urban 0.47
    Barren 0.02
    Deciduous Forest 15.61
    Coniferous Forest 0.10
    Mixed Forest 2.67
    Shrub Scrub 0.83
    Grassland Herbaceous 0.12
    Pasture/Hay 18.92
    Cropland 46.34
    Wetlands 1.84
Underlying Geology
Rock Type Percentage
Limestone 8.51
Other 84.94
Quartzite 6.53
Map
Recent Results
Sample Time 2/8/2023 3:00:00 PM
Temperature  (C) 8.22
Specific Conductivity  (mS/cm) 0.263
PH 7.63
Turbidity  (NTU+) 12.24
Dissolved Oxygen  (mg/L) 13.16
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)
Natural Gas
  • Natural Gas Pads 0
  • Natural Gas Water Withdrawals 0
Public Water Supply Withdrawals
  • Groundwater 13
  • Surface Water 0
NPDES Discharges
Description Count
Concentrated Animal Feeding Operation 2
Mining/Quarry 0
Stormwater 15
Wastewater Treatment Plant/Sewage Treatment Plant 3
Other 15
Stream Impairments
Source Category Miles
Agriculture Potable Water Supply 14.20
Agriculture Aquatic Life 86.00
Habitat Modification Aquatic Life 42.10
Highway/Road/Bridge Runoff Aquatic Life 0.90
Urban Runoff/Storm Sewers Aquatic Life 23.80