Rehabilitation of Wastewater Collection and Water Distribution ...

4.1 Background ......................................................................................................... 24
4.1.1 Infrastructure Investment Needed.................................................................................24
4.1.2 Pipe Material Usage...................................................................................................... 24
4.1.3 Drivers for Water System Rehabilitation......................................................................27
4.1.4 Funding for Rehabilitation ............................................................................................28
4.1.5 Potable Water – NSF International (NSF)/American National Standards
Institute (ANSI) Standard 61 ........................................................................................28
4.1.6 Service Connections......................................................................................................29
4.1.7 Experienced Contractors ...............................................................................................29
4.1.8 Standards.......................................................................................................................29
4.1.9 Maintenance Concerns..................................................................................................30
4.2 Summary for Water System Issues ........................................................................ 30
5.0 CURRENT TECHNOLOGIES AND POTENTIAL FOR IMPROVEMENT ...................................32
5.1 Sliplining............................................................................................................. 32
5.2 Spiral-Wound Liners ............................................................................................ 32
5.3 Cured In Place Pipe Liners.................................................................................... 33
5.4 Close-Fit Liners ................................................................................................... 33
5.5 Grout-In-Place (GIP) Liners ................................................................................. 33
5.6 Panel Liner Systems............................................................................................. 33
5.7 Sprayed Coating and Liner Systems ...................................................................... 33
5.8 Flood Grouting .................................................................................................... 34
6.0 EMERGING OR NOVEL TECHNOLOGIES ....................................................................................39
6.1 Potential Technology Candidates for Demonstration .............................................. 39
6.2 Cross-Cutting Innovation Potential........................................................................ 41
6.2.1 New Materials...............................................................................................................41
6.2.2 Wastewater Innovations................................................................................................42
6.2.3 Water Innovations.........................................................................................................42
6.2.4 Decision Support...........................................................................................................42
6.2.5 Accelerating Adoption of New Technologies...............................................................45
6.2.6 Observations on Successful Programs.................................................................... 47
7.0 EPA DEMONSTRATION PROJECTS...............................................................................................48
7.1 Purpose of Technology Demonstration .................................................................. 48
7.2 Previous Demonstration Projects and Benefits of Demonstration............................. 48
7.3 Special Aspects of Planned EPA Demonstration Project ......................................... 49
7.3.1 Demonstrate Application of Consistent Design Methodologies and Decision
Support Approaches to the Selected Technologies.......................................................49
7.3.2 Demonstrate Application of Appropriate QA/QC and Post-Installation
Procedures.....................................................................................................................49
7.3.3 Demonstrate Life-Cycle Plan for Ongoing Evaluation of Rehabilitation
Performance ..................................................................................................................50
7.3.4 Document Data from Demonstration............................................................................50
7.3.5 Provide an Assessment of Selected Technology, Expected Range of
Applications, Avenues for Improvements.....................................................................50
7.4 Demonstration Approach...................................................................................... 51
7.4.1 Technology Selection Criteria.......................................................................................51
7.4.2 Site Selection Criteria ...................................................................................................51
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