Rehabilitation of Wastewater Collection and Water Distribution ...

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ACKNOWLEDGEMENT We would like to acknowledge several key contributors to the White Paper including Ed Kampbell, Tom Sangster, and Declan Downey of Jason Consultants, Erez Allouche and Jadranka Simicevic of Louisiana Tech University, Wendy Condit of Battelle, and Sunil Sinha of Virginia Tech University. The authors would like to thank our stakeholder group members for providing written comments. Our sincere appreciation also extends to those who provided verbal review comments during the project’s Technology Forum held on September 9 and 10, 2008 at Edison, NJ. Both written and verbal comments have been incorporated into this final document as appropriate. vi
CONTENTS DISCLAIMER ..............................................................................................................................................ii EXECUTIVE SUMMARY .........................................................................................................................iii FOREWORD ................................................................................................................................................v ACKNOWLEDGEMENT ...........................................................................................................................vi APPENDICES .............................................................................................................................................ix FIGURES.....................................................................................................................................................ix TABLES ......................................................................................................................................................ix 1.0 INTRODUCTION .................................................................................................................................1 1.1 Purpose of White Paper .......................................................................................... 1 1.2 Development of Rehabilitation Practices ................................................................. 1 1.3 Current Market ...................................................................................................... 2 1.4 History of Wastewater Rehabilitation ...................................................................... 4 1.5 White Paper Organization....................................................................................... 4 2.0 COMMON ISSUES FOR REHABILITATION TECHNOLOGIES ....................................................5 2.1 Need for Rational and Common Design Approach for Rehabilitation Systems ........... 5 2.2 QA/QC Procedures for Rehabilitation Technologies................................................. 6 2.3 Decision Support for Choice of Rehabilitation vs. Replacement and Choice of Rehabilitation Systems ........................................................................................... 8 2.4 Special Applications............................................................................................... 9 2.4.1 Elevated Temperature Liner Service Conditions ............................................................9 2.4.2 Relining of High Pressure Piping Systems ...................................................................10 3.0 WASTEWATER SYSTEM ISSUES...................................................................................................11 3.1 System Characteristics.......................................................................................... 11 3.2 Drivers for Increased Rehabilitation Efforts ........................................................... 12 3.2.1 National Pollutant Discharge Elimination System (NPDES) .......................................12 3.2.2 Sanitary Sewer Overflows (SSOs)................................................................................12 3.2.3 Combined Sewer Overflows (CSOs) ............................................................................12 3.2.4 Capacity, Management, Operation, and Maintenance (CMOM) Program ...................13 3.2.5 Government Accounting Standards Board (GASB) Statement No. 34.........................13 3.2.6 Rehabilitation Funding..................................................................................................13 3.3 Problems Typically Encountered in Wastewater Pipe Systems ................................ 14 3.3.1 Gravity Sewers..............................................................................................................14 3.3.2 Laterals..........................................................................................................................14 3.3.3 Force Mains ..................................................................................................................18 3.3.4 Pump Stations and Lift Stations....................................................................................18 3.3.5 Drop Shafts ...................................................................................................................20 3.3.6 Manholes and Other Chambers.....................................................................................20 3.4 Other Wastewater Issues....................................................................................... 21 3.4.1 Inspection and Assessment ...........................................................................................21 3.4.2 Inspection and Condition Assessment Standards..........................................................22 3.5 Summary for Wastewater System Issues................................................................ 22 4.0 WATER SYSTEM ISSUES ................................................................................................................24 vii
Page 1 and 2: EPA/600/R-09/048 | May 2009 | www.e
Page 3 and 4: Final White Paper on Rehabilitation
Page 5 and 6: EXECUTIVE SUMMARY As part of the U.
Page 7: FOREWORD The U.S. Environmental Pro
Page 11 and 12: 7.4.3 Demonstration Protocols and M
Page 13 and 14: From this deliberately simplified s
Page 15 and 16: 1.4 History of Wastewater Rehabilit
Page 17 and 18: failure for specific failure mechan
Page 19 and 20: experience). This means that system
Page 21 and 22: applications for rehabilitation und
Page 23 and 24: Table 2. Force Main Systems: Percen
Page 25 and 26: Funding for sewer renovation and ma
Page 27 and 28: Table 3. Main Defects in Gravity Se
Page 29 and 30: step is usually to examine and remo
Page 31 and 32: 3.3.5 Drop Shafts. Drop shafts are
Page 33 and 34: 3.4.2 Inspection and Condition Asse
Page 35 and 36: 4.1 Background 4.0 WATER SYSTEM ISS
Page 37 and 38: external corrosion. Internal corros
Page 39 and 40: The main driver pushing utilities t
Page 41 and 42: standards for pipe bursting and int
Page 43 and 44: 5.0 CURRENT TECHNOLOGIES AND POTENT
Page 45 and 46: wastewater sector. High-build linin
Page 47 and 48: 36 Method Table 7b. Overview of Sew
Page 49 and 50: 38 Method Manhole Parameters ID Dia
Page 51 and 52: Table 10. Novel and Emerging Trench
Page 53 and 54: e too expensive for use in the wast
Page 55 and 56: Figure 4. Selection of Rehabilitati
Page 57 and 58: There are many facets to the introd
Page 59 and 60:
7.0 EPA DEMONSTRATION PROJECTS 7.1
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project provides an opportunity to
Page 63 and 64:
for a given technology. The environ
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Trenchless Technology (NASTT), etc.
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• Challenging Pipe Configurations
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9.0 REFERENCES Allouche, E.N., S. A
Page 71 and 72:
APPENDIX A Abbreviations
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NACE National Association of Corros
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Sliplining is a method of pipe reha
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Example technology: Trolining®, Su
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Pipe reaming - HDD equipment is use
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Sliplining is a method of pipe reha
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hand applied procedures. Polyurea c
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APPENDIX D Manhole Rehabilitation T
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ambient temperature (Warren). They
Page 89 and 90:
Grade adjustment ring area seals in
Page 91 and 92:
The installation of CIPP is governe
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