Aging Water Infrastructure Research Program SAB Consultation Rehabilitation of Wastewater Collection and Water Distribution Systems Dr. Ari Selvakumar Water Supply and Water Resources Division Photo image area measures 2 H x 6.93 W and can be masked by a ” ” collage strip of one, two or three images. The photo image area is located 3.19 from left and 3.81 from top of page. ” ” Each image used in collage should be reduced or cropped to a maximum of 2 high, stroked with a 1.5 pt white frame and positioned edge to edge with ” - - accompanying images. Office of Research and Development July 21, 2009 National Risk Management Research Laboratory
Rehabilitation Definition: Rehabilitation includes repair, renewal, and replacement of pipes and components (pump stations, manholes, etc.) to return the system to near-original condition and performance. Research Area Goals: To accelerate the application of innovative technologies for cost-effective rehabilitation/replacement of aging/failing drinking water distribution and wastewater collection systems. To conduct full-scale demonstrations of promising technologies that will gather reliable cost and performance data. Office of Research and Development 1 National Risk Management Research Laboratory
Project Strategies • Identify, characterize, and document the SOT at the global level, including critical data and capability gaps, for the rehabilitation of DW and WW conveyance systems. • Demonstrate and evaluate promising innovative technologies and decision-support systems under controlled-conditions and at sites of opportunity. Office of Research and Development 2 National Risk Management Research Laboratory
Tasks Stakeholder Members • Establish Stakeholder Group • Steve Allbee - EPA Office of Water • Conduct Technology Forum • Dr. Daniel Woltering - WERF • Develop State-of-the-Technology Reports • Dr. Jian Zhang - WRF • John Hemphill - NASTT • Develop Protocols/Metrics for • Duncan Rose - GHD Consulting, Inc. Demonstrations • Dr. David Hughes - American Water • John Griffin, Jr. - City of Atlanta • Develop Site Selection Criteria for Research Partners Demonstrations • Field Demonstration of at Least Two • Battelle Memorial Institute, Columbus, OH Technologies • Trenchless Technology Center, • Develop Rehabilitation vs. Replacement Louisiana Tech. (Dr. Ray Sterling) Decision Support Strategies • Jason Consultants • Virginia Tech University (Dr. Sunil Sinha) Office of Research and Development 3 National Risk Management Research Laboratory
International Forum Purpose: Develop inventory of rehabilitation technologies and identify candidate technologies for demonstration. Forum Highlights • Need decision-support systems: − Rehabilitation methods/materials − Rehabilitation vs. replacement • Lack of understanding of rehabilitation capabilities; • 31 Invited Experts need rational/uniform design approach • 21 Presentations • Proprietary systems, procedures, materials • Group Discussions • Need long-term performance/cost data • Better technologies for water distribution pipes • Vendor & Utility • EPA clearing house for performance/cost data Roundtable Discussion • Retrospective evaluation of rehabilitation technologies Office of Research and Development 4 National Risk Management Research Laboratory
Retrospective Evaluation of Lining Technologies • Develop protocols for the forensic evaluation of existing rehabilitation systems. • Demonstrate protocols on selected case studies. • Encourage municipalities to examine their rehabilitated systems using the protocols. • Develop/provide database on performance. Office of Research and Development 5 National Risk Management Research Laboratory
Next Steps 1. Selection of Technologies for Demonstration • Wastewater: CIPP with UV ‐ cured (Glass fiber & polyester tube impregnated with polyester or vinylester resin & UV cured) • Water: CIPP with hot water or steam cured (Aqualiner, Aquapipe, InSitu Main) 2. Selection of Potential Demonstration Sites • Columbus, OH • Indianapolis, IN • Omaha, NE 3. Preparation for Demonstration • QAPP • Protocols/Metrics 4. Demonstration Trials • Site Selection Criteria Office of Research and Development 6 6 6 National Risk Management Research Laboratory
Planned Outputs • State of the technology reports on State of Technology Report rehabilitation of: − Wastewater collection pipes & service laterals − Force Mains − Water distribution pipes & service lines • Report on initial field demonstrations • Rehabilitation vs. replacement decision approach • Report on retrospective evaluation of lining • Journal articles EPA/600/X-09/048 Office of Research and Development 7 National Risk Management Research Laboratory
ETV Program Stakeholder Members • NSF International • NASSCO • WRF Established Infrastructure Stakeholders Group. • University of Houston • Springfield Water/Sewer Comm Evaluating coatings & grouting materials for • Inland Water Pollution Control rehabilitating stormwater & wastewater • Black & Veatch, Hydroqual infrastructure. • Ultraliner • Virginia Public Works Equip. Six vendors participating at University of Houston’s • Prime Resins Center for Innovative Grouting Materials and • Cues, Inc. Technology. Verification Reports in 2010 & 2011. Office of Research and Development 8 National Risk Management Research Laboratory
Summary Water & sewer systems are critical to the effective functioning & environmental health of our cities. Delay in addressing the problems only increases total costs. Rehabilitation technologies are available & continue to be developed. International technology transfer, design, & performance data can improve the cost-effectiveness of rehabilitation efforts. This can translate into billions of dollars saved. Office of Research and Development 9 National Risk Management Research Laboratory
Thank You! Questions/Comments? Office of Research and Development 10 National Risk Management Research Laboratory
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