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Lake County, Illinois

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Lake County Stormwater Management Commission

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  3. Stormwater Management Commission
  4. For Local Government
  5. NPDES Phase II
  6. Lake County NPDES MS4 Program

Lake County NPDES MS4 Program

Lake County Stormwater Management Program Plan (PDF)

Notice of Intents
Notice of Intent for Years 1-5 (PDF)
Notice of Intent for Years 6-11 (PDF)
Notice of Intent for Years 12-18 (PDF)
Notice of Intent for Years 19-23 (PDF)

Annual Facility Reports
  • Year 1 Annual Facilities Inspection Report (PDF)
  • Year 2 Annual Facilities Inspection Report (PDF)
  • Year 3 Annual Facilities Inspection Report (PDF)
  • Year 4 Annual Facilities Inspection Report (PDF) 
  • Year 5 Annual Facilities Inspection Report (PDF)
  • Year 6 Annual Facilities Inspection Report (PDF)
  • Year 7 Annual Facilities Inspection Report (PDF)
  • Year 8 Annual Facilities Inspection Report (PDF)
  • Year 9 Annual Facilities Inspection Report (PDF)
  • Year 10 Annual Facilities Inspection Report (PDF)
  • Year 11 Annual Facilities Inspection Report (PDF)
  • Year 12 Annual Facilities Inspection Report (PDF)
  • Year 13 Annual Facilities Inspection Report (PDF)
  • Year 14 Annual Facilities Inspection Report (PDF) 
  • Year 15 Annual Facilities Inspection Report (PDF)
  • Year 16 Annual Facilities Inspection Report (PDF)
  • Year 17 Annual Facilities Inspection Report (PDF)
  • Year 18 Annual Facilities Inspection Report (PDF)




  1. Annual Reporting Template
  2. Notice of Intent (NOI)
  3. Stormwater Management Program Plan (SMPP)
  4. Total Maximum Daily Loads (TMDL)
  5. Lake County MS4 Community Information WebMap
  6. Lake County NPDES MS4 Program
  7. LCDOT Construction Permit Documents
  8. LC Public Works Construction Permit Documents
Coronavirus Resources
Lake County Jobs 
Property Tax Information
Report a Concern
Maps, Records & Transparency
Lake County, Illinois

Contact Us

  1. Lake County Stormwater 
    Management Commission
    500 W Winchester Road
    Suite 201
    Libertyville, IL 60048
    Phone 847-377-7700 

    Contact Us
    Parking and Directions

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  3. Rainfall
  4. Watersheds
  5. Des Plaines River Watershed Workgroup (DRWW)
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