Planning and Development - Division of Water Resources

National Pollutant Discharge Elimination System

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The goal of the federally mandated National Pollutant Discharge Elimination System (NPDES) Phase II program is to preserve, protect and improve the Nation's water resources from polluted stormwater runoff. NPDES Phase II is intended to reduce adverse impacts to water quality and aquatic habitat by instituting the use of controls on the unregulated sources of stormwater discharges that have the greatest likelihood of causing continued environmental degradation. NPDES Phase II requires operators of Municipal Separate Storm Sewer Systems (MS4s) in urbanized areas to implement Best Management Practices (BMPs) defined in six minimum control measures to control polluted stormwater runoff. McHenry County falls under the MS4 classification; and therefore, submits a Notice of Intent (NOI) General Permit No. ILR4000264 to the Illinois Environmental Protection Agency (IEPA). The NOI contains general information about McHenry County as well as the BMPs to be implemented for each of the six minimum control measures that are given below:   
  • Public Education and Outreach on Storm Water Impacts
  • Public Involvement/Participation
  • Illicit Discharge Detection and Elimination
  • Construction Site Storm Water Runoff Control
  • Post-Construction Storm Water Management in New Development and Redevelopment
  • Pollution Prevention/Good Housekeeping for Municipal Operations

For complete information visit the EPA website. 

General Permit No. ILR40

Notice of Intent (NOI)

Annual Facility Inspection Report

Stormwater Management Program Plan (SMPP)


McHenry County Green Guide
Be the Solution to Stormwater Pollution 

NPDES Phase II Stormwater Links

EPA Sites
  Green Infrastructure BMP's
  National Pollutant Discharge Elimination System (NPDES)
  Climate Change

  10 Things You Can Do To Prevent Stormwater Runoff Pollution
  Healthy Household Habits for Clean Water
  Protecting Water Quality from Urban Runoff
  Water-Efficient Landscaping
  What is Stormwater Runoff?

 Climate Change
  NASA Climate Change and Global Warming

 Construction Sites
Construction Industry Compliance Assistance
  Construction Stormwater Pollution Prevention Plan
  Maintain Your BMPs!
  IEPA NPDES General Construction Stormwater Permit Checklist

Auto-Related Businesses
  Environmental Compliance for Automotive Recyclers
  Stormwater Mgmt - An Overview for Auto Recyclers
  Stormwater Mgmt - Auto Recycler Owners & Operators Guide

McHenry County Conservation District (MCCD)
  MCCD Homepage

McHenry County Division of Transportation (MCDOT)
  Current Construction Projects
  Notice of Intent (NOI) Project Information
  Adopt-A-Highway Program

Fox River Study Group (FRSG)
  Fox River Implementation Plan (FRIP)
  FRSG Annual Report 2019
  FRSG Annual Report 2018

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