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Duluth’s Storm Sewers. Chris Kleist. Overview. My background About Duluth Storm sewer 101 June flood Flooding issues Considerations . Background. Ely, MN Outdoors Guiding Stormwater and Wastewater Industry. Today. Program Coordinator - Stormwater MS4 Permit Compliance

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Presentation Transcript
overview
Overview
  • My background
  • About Duluth
  • Storm sewer 101
  • June flood
  • Flooding issues
  • Considerations
background
Background
  • Ely, MN
  • Outdoors
  • Guiding
  • Stormwater and Wastewater Industry
today
Today
  • Program Coordinator - Stormwater
  • MS4 Permit Compliance
  • Duluth’s Utilities
duluth
Duluth
  • 26 miles long
  • 883 feet elevation
  • 431 miles storm sewer pipe
    • 12,000 catch basins
    • 5600 manholes
    • 100+ miles of ditching
duluth1
Duluth
  • 26 miles long
  • 883 feet elevation
  • 431 miles storm sewer pipe
    • 12,000 catch basins
    • 5600 manholes
    • 100+ miles of ditching
ms4 program
MS4 Program
  • Stormwater NOT treated
  • Series of Minimum Control Measures and Best Management Practices
  • Education
  • Illicit discharge
  • Inspections
  • Good housekeeping
stormwater basics
Stormwater Basics
  • Rainwater and snowmelt
  • Impervious surface
  • Pollution sources
  • MEP
duluth stormwater program
Duluth Stormwater Program
  • Illicit Discharge
  • Stormwater Billing
  • Best Management Practices (BMPs)
    • Structural
    • Non-structural
  • Runoff, erosion, and sediment issues
duluth stormwater program1
Duluth Stormwater Program
  • Cleaning
  • Maintenance
  • Inspection
  • Plan review
  • Technical assistance
storm sewer challenges
Storm Sewer Challenges
  • Trout streams
    • Pollution
      • Sediment
      • Temperature
    • DNR
      • Maintenance
      • Fish passage
storm sewer challenges1
Storm Sewer Challenges
  • Volume Control
    • Infiltration
    • Rate control
    • Water Quality
storm sewer challenges2
Storm Sewer Challenges
  • Budget
  • Old system
  • Increasing regulations
    • MS4
    • TMDL
    • Non-Degradation
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