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Technical Committee Reports

 First Technical Committee Full Report (1981)

Table of Contents 

  • ACKNOWLEDGEMENTS
  • EXECUTIVE SUMMARY
  • INTRODUCTION
    • Purpose and Scope
    • History of the Lake Michigan Diversion
    • Components of Diversion
  • ACCOUNTING PROCEDURES
    • Lockport Measurements
      • Computation of Discharge
      • Evaluation of Rating Tables
      • Model Tests
      • Generators
      • 1936 Test
      • 1937 Test
      • 1977 Tests
      • 1979 Tests
      • Dye-Dilution Tests
      • Evaluation of Verification Tests
      • Recommendations
    • Exciters
    • Lockport Powerhouse Sluice Gates
    • Model Study
    • Rating Analysis
    • Rating Tables
    • Conclusions
    • Recommendations
    • Leakage
      • Leakage Tests
      • Evaluation
      • Recommendations
    • Lockport Controlling Works
      • Discharge Rating
      • Rating Evaluation
      • Computation of Discharge
      • Leakages
      • Recommendations
    • U.S. Government Locks
      • Lockages
      • Leakages
        • Leakage Tests
        • Evaluation of Leakage Tests
        • Lock Leakage Accounting
        • Recommendations
    • Industrial Diversions
    • Domestic Pumpage
      • Ground Sources - Lake Michigan Watershed
      • Ground Sources - Outside the Lake Michigan Watershed
      • Domestic Pumpage from Indiana and Wisconsin
      • Evaluation of Domestic Pumpage Accounting
      • Recommendations
      • Contribution of Lake Michigan to Groundwater
    • Storm Runoff and Infiltration from the Illinois Watershed
      • Infiltration
        • Evaluation
          • Upper Des Plaines Pumping Station Discharge Measurement
          • Computation of Daily Discharge
          • The Computation of Domestic Pumpage
          • Infiltration and Inflow Factors
        • Recommendations
      • Summit Conduit
        • Depth of Flow Recording
        • Depth of Flow-Discharge Relation
        • Evaluation
        • Recommendations
      • Des Plaines River Watershed South of the Main Channel
      • Sewer System 13A (Part of the TARP System)
      • O'Hare Water Reclamation Plant
    • Hydraulic Report - Computational Procedures
  • WILLOW SPRINGS ROAD ACOUSTICAL VELOCITY METER
  • TARP - IMPACT ON THE DIVERSION ACCOUNTING PROCEDURES
  • CONCLUSIONS AND RECOMMENDATIONS 
    • Conclusions
      • Dynamics of the Diversion System
      • Evaluation of the Diversion Components
    • Recommendations
      • Master Plan for Diversion Accounting
      • Quality Assurance
      • Alternatives to Measurement at the Lockport Facilities
      • Lockport Turbines
      • Lockport Sluice Gates
      • Lockport Controlling Works
      • Lockport Lock Leakage
      • Industrial Diversion
      • Domestic Pumpage
      • Storm Runoff and Infiltration from the Illinois Watershed
      • Summit Conduit
      • Des Plaines Watershed South of the Main Channel
      • Sewer System 13A
  • REFERENCES
  • APPENDIX A - Qualifications of Committee Members
  • APPENDIX B - Schedule of Committee Activities
  • APPENDIX C - Minutes of Committee Workshops
 Addendum to First Technical Committee Report

Table of Contents

  • Committee Letter dated 30 Match 1982
  • Section 1: U.S. Army Corps of Engineers Comments and Committee Response
  • Section 2: Illinois Department of Transportation (IDOT) letter dated 18 December 1981 and Committee Response
  • Section 3: The Metropolitan Sanitary District of Greater Chicago (MSD) letter dated 29 January 1982 with enclosed report and Committee's Response
  • Section 4: State of Wisconsin Department of Justice letter dated 25 November 1981 and Committee's Response
  • Section 5: State of Minnesota Office of the Attorney General letter dated 1 December 1981
  • Section 6: State of Michigan Department of Attorney General letter dated 1 December 1981
  • Section 7: U.S. department of the Interior Geological Survey letter dated 25 November 1981
 Second Technical Committee Report (1986)

Table of Contents

  • Acknowledgements
  • Executive Summary
  • 1.0 - Introduction
  • 2.0 - Diversion Accounting for the Period 1981-1986
  • 3.0 - Review of Current Accounting System
  • 3.1 - Accounting Report Table
  • 3.2 - Runoff Model
  • 3.3 - Hydrologic Engineering Center Report, Lake Michigan Diversion - Evaluation of Hydrologic Simulation Procedures
  • 3.4 - Technical Committee Finding
  • 3.5 - Recommendations
  • 4.0 - Acoustical Velocity Meter (AVM) System - Romeoville
  • 4.1 - Background
  • 4.2 - Technical Committee Findings
  • 4.3 - Recommendations
  • 5.0 - Harza Report : Investigation of the Impact of the Acoustical Velocity Meter on Lake Michigan Diversion Accounting, September 1986
  • 6.0 - Waterways Experiment Station Report : Lockport Power Plant Sluice Gate and Control Works Discharge Evaluation
  • 7.0 - Lock Leakage Accounting at Lockport Lock : Standard Operating Procedure, USCE, Chicago District, 1985
  • 8.0 - TARP - Impact on the Diversion Accounting Procedure
  • 9.0 - Summary Recommendations
  • 10.0 - References
  • Appendices
    • Appendix A
    • Appendix B
    • Appendix C
    • Appendix D
    • Appendix E
    • Appendix F
 Third Technical Committee Report (1993)

Table of Contents

  • EXECUTIVE SUMMARY
  • INTRODUCTION
    • Purpose and Scope
      • First Technical Committee
      • Second Technical Committee
      • Third Technical Committee
    • History of Lake Michigan Diversion
    • Components of Diversion
    • Committee Findings
      • Review of First Committee Report
      • Review of Second Committee Report
        • First Technical Committee Report (1982)
        • Diversion Accounting Reports WY 1981-84
        • Diversion Accounting Procedures
        • Acoustical Velocity Meter -Romeoville
        • Lockport Lock and Dam Facilities
        • TARP
  • REVIEW OF LAKE MICHIGAN DIVERSION ACCOUNTING PERIOD 1981-1989
    • First and Second Technical Committees Findings Accounting Period 1981-1989
      • 1983 Annual Report
      • 1985 Annual Report
      • 1986 Annual Report
      • Summary of First and Second Technical Committees Findings
    • Third Technical Committee Review and Recommendations Accounting Period 1987-1989
      • 1987 Annual Report (No Accounting Diversion)
      • 1988 Annual Report (No Accounting Diversion)
      • 1989 Annual Report (Accounting Years 1984-1985)
      • 1990-1992 Annual Report (Accounting Years 1986, 1987, 1988, and 1989)
      • Summary of Lake Michigan Diversion Accounting
      • Technical Committee's Findings and Recommendations
  • REVIEW OF CURRENT ACCOUNTING SYSTEM
    • Accounting Report Table
    • Accounting Hydraulic Modeling
      • Modeling Approach
        • Precipitation Network
        • HSPF Model
        • Interception Storage
        • Impervious Area Runoff
        • Infiltration
        • Upper Zone Storage
        • Overland Flow
        • Lower Zone
        • Interflow
        • Groundwater and Deep Percolation
        • Evapotranspiration
    • SCDALP
      • TNET
      • Comments
  • AVM SYSTEM AT ROMEOVILLE
    • AVM System
    • Development of a Discharge Rating
      • Rating Velocity
      • Rating Area
    • Romeoville AVM Station
    • Review of the Romeoville AVM Ratings
      • Methods for Daily Discharge Completion
      • Discharge Equations
    • Backup System Regression Equations
      • Index Velocity Method
      • Area Rating
  • LEAKAGE AT LAKE MICHIGAN CONTROL STRUCTURES
  • TURBINE DISCHARGE RATING
    • Third Committee
    • Recommendations
  • SUMMARY RECOMMENDATIONS
    • First and Second Committee Recommendations
    • Master Plan
    • Quality Assurance Plan
    • AVM System Recommendations
    • Lakefront Measurements
    • Lockport/Romeoville Regression Equations
    • Annual Diversion Report
    • Des Plaines Pumping Station
    • Grand Calumet River
  • REFERENCES
  • APPENDIX 1 - Diversion Accounting Table Columns 4-13
  • APPENDIX 2 - Description of the Diversion Accounting Computational Budgets
  • APPENDIX 3 - USGS's Romeoville AVM Station Description
  • APPENDIX 4 - USGS's Romeoville AVM Station Analysis 1989-1992
  • APPENDIX 5 - Stability of the Romeoville Measuring Section
  • APPENDIX 6 - Comments on Technical Committee Finds Regarding the Romeoville AVM Stage-area Rating
  • APPENDIX 7 - Romeoville AVM Quality Assurance Plan
  • APPENDIX 8 - Committee's Workshop Agendas

 

 Fourth Technical Committee Report (1998)

Table of Contents

  • ACKNOWLEDGEMENTS
  • EXECUTIVE SUMMARY
  • INTRODUCTION
    • History of Lake Michigan Diversion
    • Components of Diversion
    • Review of Technical Committee’s Findings
      • First Technical Committee
      • Second Technical Committee
      • Third Technical Committee
  • LAKE MICHIGAN DIVERSION ACCOUNTING – WATER YEAR 1990-1995
    • 1993 Annual Report (Water Year 1990)
    • 1994 Annual Report (Water Year 1991 and 1992)
    • 1995 Annual Report (Water Year 1993 and 1994)
    • 1996 Annual Report (Water Year 1995)
      • Runoff Study
      • Consumptive Use Study
    • Water Supply Pumpage from Indiana
    • Status of Lake Michigan Diversion
  • REVIEW OF CURRENT ACCOUNTING SYSTEM
    • Accounting Report
      • Description of Columns in Diversion Accounting Table
      • Description of Computational Budgets
    • Hydrologic Modeling
      • Modeling Approach
        • Precipitation Network
        • HSPF Model
          • Interception Storage
          • Impervious Area Runoff
          • Infiltration
          • Upper Zone Storage
          • Overland Flow
          • Lower Zone
          • Interflow
          • Groundwater and Deep Percolation
          • Evapotranspiration
          • Output
        • SCALP
        • TNET
      • Simulation Results
      • Hydrologic Balance
      • Accounting Report Budgets
    • Romeoville AVM System
      • Description
      • Measurement errors
      • ADCP Measurement Errors
        • Random ADCP Measurement Errors
        • Systematic Errors in ADCP Measurements
        • Errors in Measuring Cross-Section Width
        • Total Uncertainty in Typical Discharge Measurement
      • Backup System
      • Rating Bias
      • Error Analysis
    • Other Gages
      • Station 05536000, North Branch Chicago River at Niles, Illinois
      • Station 05536195, Little Calumet River at Munster, Indiana
      • Station 05536275, Thorn Creek at Thornton, Illinois
      • Station 05536290, Little Calumet River at South Holland, Illinois
      • Station 05536357, Grand Calumet River at Hohman Avenue at Hammond, Indiana
      • Twenty-five-Gage Precipitation Network
  • REVIEW OF LAKEFRONT ACCOUNTING
    • Measurement of Lockage, Leakage, and Discretionary Diversions
    • Lakefront Gages
      • Calumet River at O’Brien Locks and Dam (AVM system)
        • Description
        • Measurement errors
        • Backup system
      • Chicago River at Columbus Avenue (AVM system)
        • Description
        • Measurement errors
        • Backup system
      • North Shore Channel at Wilmette (proposed AVM system)
        • Description
        • Measurement errors
        • Backup system
    • Water-Supply Pumpage
      • Review of Quality-Assurance Reports on Pumping Stations
        • Evanston
        • Mayfair Pumping Station
        • Thomas Jefferson Pumping Station
  • FOURTH TECHNICAL COMMITTEE’S RECOMMENDATIONS AND FINDINGS
  • REFERENCES
 Fifth Technical Committee Report (2004)
  • ACKNOWLEDGEMENTS
  • EXECUTIVE SUMMARY
  • INTRODUCTION
    • History of Lake Michigan Diversion
    • Components of Diversion
    • Summary of Technical Committee's Findings
      • First Technical Committee
      • Second Technical Committee
      • Third Technical Committee
  • LAKE MICHIGAN DIVERSION ACCOUNTING – WATER YEAR 1996-1999
    • Water Year 1997 Annual Report (WY 1996 Accounting Report)
    • Water Year 1998 Annual Report (WY 1997 Accounting Report)
    • Water Year 1999 Annual Report (WY 1998 and 1999 Accounting Reports)
    • Lake Michigan Cululative Diversion Deficit (Estimated Through WY 2004)
  • REVIEW OF CURRENT ACCOUNTING SYSTEM
    • Accounting Report
      • Description of Columns in Diversion Accounting Table
    • Description of Computational Budgets
  • HYDROLOGIC AND HYDRAULIC MODELS APPLIED TO DIVERSION ACCOUNTING
    • Model Background
    • Assessment of Best Current Engineering Practive and Scientific Knowledge
      • Hydrological Simulation Program-Fortran (HSPF)
      • Special Contributing Area Loading Program (SCALP)
      • Tunnel Network (TNET) Model
      • Summary

Evaluation of the hydrological Simulation Program-Fortran (HSPF) Application to Diversion Accounting

      • Validity of Model Parameter Transfer
      • Assessment of the Original Calibration
      • Quality of the Original Calibration
      • Hydrologic Similarity of Watersheds
      • Evaluation of Appropriate Parameter Transfer
      • Regional Parameters and Their Transfer
      • Summary of HSPF Status
    • Comments on the Direct Application of Models in the Romeoville Diversion Accounting
      • Simulation of Runoff from the Des Plaines River Watershed
      • Re-Evaluation of Infiltration to the COmbined Sewer System
      • Groundwater Infiltration in the Calumet TARP System
      • Indiana Water Supply Through the Grand Calumet River
      • TNET Model Application
      • Comments on the Direct Application of Models in the Lakefront Diversion Accounting
      • Consumptive Los Analysis
    • Uncertainty Analysis of Diversion Flow Components
      • Fourth Technical Committee Error Analysis
      • USGS Error Analysis
      • USACE Municipal Pump-Station Error Analysis
      • USACE Preliminary Overall Comparative Error Analysis
      • Comparison of Uncertainty in Lakefront and Romeoville Accounting
        • Romeoville Accounting
        • Lakefront Accounting
        • Comparison of Uncertainty Between Lakefront and Romeoville Accounting
        • Comparison over Averaging Periods
  • FLOW MEASUREMENT
    • Overview
    • Evaluation of Acoustic Flow Monitoring Activities
      • Chicago Sanitary and Ship Canal at Romeoville
    • Romeoville AVM System Relocation
      • Chicago River at Columbus Drive at Chicago, IL
      • Calumet River Below O'Brien Lock and Dam at Chicago, IL
      • North Shore Channel at Wilmette, IL
    • Evaluation of Conventional Stream-Gaging Stations
    • Precipitation Monitoring
    • Evaluation of Water-Supply Pumpage
    • Summary of Overall Evaluation
  • FIFTH TECHNICAL COMMITTEE'S RECOMMENDATIONS AND FINDINGS
  • REFERENCES
  • APPENDICES
    • Appendix A - Historical Summary of Hydrological Simulation Program -Fortran Parameters Used For Snowmelt and for Impervious Areas
    • Appendix B - Workshop Agenda
    • Appendix C - 1980 Decree and MOU
 Sixth Technical Committee Report (2009)

Table of Contents

  • ACKNOWLEDGEMENTS
  • EXECUTIVE SUMMARY
  • INTRODUCTION
    • History of Lake Michigan Diversion
    • Components of Diversion
    • Summary of Technical Committee's Findings
      • First Technical Committee
      • Second Technical Committee
      • Third Technical Committee
      • Fourth Technical Committee
      • Fifth Technical Committee
  • LAKE MICHIGAN DIVERSION ACCOUNTING – WATER YEAR 2000-2005
    • Water Year 2000 Annual Report (WYS 2000 AND 2001 Accounting Reports)
    • Water Year 2001 Annual Report (WYS 1997 TO 2003 Lakefront Accounting Report)
    • Water Year 2002 Annual Report (WY 2002 Accounting Report)
    • Water Year 2003 Annual Report (WY 2003 Accounting Report)
    • Water Year 2004 Annual Report (WY 2004 Accounting Report)
    • Water Year 2005 Annual Report (WY 2005 Accounting Report)
    • Lake Michigan Cumulative Diversion Deficit (Estimated Through WY 2008)
  • REVIEW OF CURRENT ACCOUNTING SYSTEM
    • Description of Columns in Diversion Accounting Table
    • Description of Computational Budgets
  • HYDROLOGIC AND HYDRAULIC MODELS APPLIED TO DIVERSION ACCOUNTING
    • Model Background
    • Assessment of Best Current Engineering Practive and Scientific Knowledge
      • Hydrological Simulation Program-Fortran (HSPF)
      • Special Contributing Area Loading Program (SCALP)
      • Tunnel Network (TNET) Model
      • Summary
    • Evaluation of the Hydrological Simulation Program-Fortran (HSPF) Application to Diversion Accounting
      • Validity of Model Parameter Transfer
      • Assessment of the Original Calibration
      • Quality of the Original Calibration
      • Hydrologic Similarity of Watersheds
      • Evaluation of Appropriate Parameter Transfer
      • Regional Parameters and Their Transfer
      • Summary of HSPF Status
    • Recalibration and Testing of the HSPF and SCALP Models in Response to the Recommendations of the Fifth Technical Committee
      • Recalibration of the HSPF and SCALP Models
      • Test of the HSPF Model for the Midlothian Creek and Tinley Creek Watersheds
      • Test of the HSPF model for the North Branch and Racine Avenue Pump Stations
      • Confirmation of Approach to Estimating the Amount of Impervious Area in the Simulated Watersheds
      • Evaluation of Snowmelt Simulation
    • Comments on the Direct Application of Models in the Diversion Accounting
      • Simulation Runoff from the Des Plaines River Watershed
      • Re-Evaluation of Infiltration to the Combined Sewer System
      • Groundwater Infiltration in the Calumet TARP System
      • Indiana Water Supply Through the Grand Calumet River
      • TNET Model Application
      • Illinois Transient Model
  • FLOW MEASUREMENT
    • Overview
    • Evaluation of Acoustic Flow Monitoring Activities
      • Main Acoustic Instruments
      • Measurement Procedures
      • Uncertainty Analysis Considerations
      • Streamflow Monitoring for the Reference Period
    • Impact of Flow Unsteadiness in the CSSC System
      • General Considerations
      • Flow Unsteadiness in the CSSC
      • Suggestions for Rating Curve Correction
    • Summary of Specific Findings and Recommended Action Items
      • Activities to Address Recommendations of the Fifth Technical Committee
      • Findings and Recommendations of the Sixth Technical Committee
  • SIXTH TECHNICAL COMMITTEE'S RECOMMENDATIONS AND FINDINGS
  • REFERENCES
  • APPENDICES
    • Appendix A - Historical Summary of Hydrological Simulation Program - Fortran Parameters Used For Snowmelt and for Impervious Areas
    • Appendix B - Workshop Agenda
    • Appendix C - 1980 Decree and MOU
 Seventh Technical Committee Report (2014)

Table of Contents

  • ACKNOWLEDGEMENTS
  • EXECUTIVE SUMMARY
  • INTRODUCTION
    • History of Lake Michigan Diversion
    • Components of Lake Michigan Diversion
    • Summary of Technical Committee's Findings
      • First Technical Committee
      • Second Technical Committee
      • Third Technical Committee
      • Fourth Technical Committee
      • Fifth Technical Committee
      • Sixth Technical Committee 
  • LAKE MICHIGAN DIVERSION ACCOUNTING – WATER YEAR 2006-2009
    • Water Year 2006, Annual Report 2006 
    • Water Year 2007, Annual Report 2007 
    • Water Year 2008, Annual Report 2008 
    • Water Year 2009, Annual Report 2009 
    • Lake Michigan Cumulative Diversion Deficit (Through WY 2011) 
  • REVIEW OF CURRENT ACCOUNTING SYSTEM
    • Description of Columns in Diversion Accounting Table
    • Description of Computational Water Budgets
    • Watershed Flow Diagrams
    • Uncertainty Analysis 
  • HYDROLOGIC AND HYDRAULIC MODELS APPLIED TO DIVERSION ACCOUNTING
    • Model Background
    • Assessment of Best Current Engineering Practive and Scientific Knowledge
      • Hydrological Simulation Program-Fortran (HSPF)
      • Special Contributing Area Loading Program (SCALP)
      • Tunnel Network (TNET) Model
      • Summary
    • Evaluation of the Hydrological Simulation Program-Fortran (HSPF) Application to Diversion Accounting                
      • Validity of Model Parameter Transfer
      • Summary of HSPF Status and the Recommendations of the Sixth Technical Committee 
      • Hydrologic Similarity of Watersheds                         
    • Recalibration and Testing of the HSPF and SCALP Models in Response to the Recommendations of the Fifth and Sixth Technical Committees
      • Recalibration of the HSPF and SCALP Models for WYs 2000 and 2001
      • HSPF model tests in response to the Fifth Technical Committee
      • Test of HSPF rainfall runoff parameters for forested areas 
      • Test of HSPF rainfall runoff parameters for grassland areas 
      • Confirmation of Approach to Estimating the Amount of Impervious Area in the Simulated Watersheds
      • Evaluation of Snowmelt Simulation
    • Comments on the Direct Application of Models in the Diversion Accounting
      • Simulation Runoff from the Des Plaines River Watershed
      • Re-Evaluation of Infiltration to the Combined Sewer System
      • Groundwater Infiltration in the Calumet TARP System
      • Indiana Water Supply Through the Grand Calumet River
      • TNET Model Application
      • Illinois Transient Model
  • FLOW MEASUREMENT
    • Overview
    • Evaluation of Acoustic Flow Monitoring Activities
      • Main Acoustic Instruments
      • Measurement Procedures
      • Uncertainty Analysis Considerations
      • Frequency of Calibration
      • Flow Unsteadiness
      • Suggestions for Rating Curve Improvement 
      • Summit Conduit 
    • Alternative Flow Measurements at Lockport Dam and Controlling Works
      • Reliability of Lemont Gauging Station Measurements 
      • Lockport Controlling Works 
      • Lockport Powerhouse
  • SUMMARY OF SEVENTH TECHNICAL COMMITTEE'S FINDINGS AND RECOMMENDATIONS   
    • Overview
    • Hydrologic and Hydraulic Modeling
      • Models used in LMDA
      • Development of current HSPF parameters
      • Methodology for Estimating Impervious Area
      • Snowmelt
      • Simulation of runoff from Des Plaines Basin
      • Calumet TARP System
      • Indiana Water Supply through Grand Calumet River
      • TNET Model Application
      • Illinois Transient Model
    • Flow Measurement 
      • Uncertainty Analysis
      • Frequency of Calibration
      • Flow Unsteadiness
      • Vertical Velocity Distribution
      • Rating Curve Improvement
      • Summit Conduit
      • Reliability of Lemont Gauging Station Measurements
      • AVM System
      • Lockport Powerhouse and Controlling Works
  •  APPENDICES
    • Appendix A - References
    • Appendix B - Workshop Agendas
    • Appendix C - 1967 U.S. Supreme Court Decree and the 1980 Decree and MOU

 Eighth Technical Committee Report (2019)