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assistance from the manufacturers when it initiated the pipe bursting program and have been fully self performing the installations with efficiency ever since. Typical pipe bursting runs are in the range of 500 to 800 feet, but CMWC has successfully completed runs of 1,300 and 1,800 linear feet. The pipe bursting process consists of digging an entry pit and an exit pit instead of trenching along the whole length of the pipe alignment. A temporary bypass is needed to keep water flowing to residents and businesses during the process. Crews fuse the PVC pipe offsite and move it to the location when they are ready for the burst. The pipe bursting machine, which includes a series of rods that are strung through the pipe, attaches to a bursting head that is pulled through the existing pipe, breaking the pipe and expanding out into the soil while pulling in the new PVC pipe. Once in place, pits are dug to reconnect house connections. Pipe sizes being replaced are 4-, 6- and 8-inch. One unique feature about pipe bursting is that it allows the option to upsize the pipe. In most cases, CWMC is upsizing the pipe by 2 inches, including some instances of upsize 4-inch pipe to 8-inch. The first phase of the project started on April 26, 2010, and was completed on Sept. 10, 2010. Due to the success of the program, CMWC increased the footage installed in 2011 to 34,000 linear feet, with plans to replace 40,000 feet in 2012. Previously, CMWC had been able to replace an average of 12,000 feet of pipe per year through open-cut methods. CMWC purchased a second pipe bursting unit to allow crews to leap frog between job locations, which has helped increase production. CMWC’s Queen stated: “We saved $1.3 million using pipe bursting instead of the open-cut method on the first phase … and we anticipate the same cost saving results [for future projects].” He said that pipe bursting has cut replacement costs in half. Queen said that he sees resistance to pipe bursting at other utilities because of unfamiliarity to the method or a reluctance to try new technologies. “At some point you need to toss tradition aside and do what is best for the organization,” he said. “We are aggressively replacing our old cast-iron mains and in the next 15 years, our system will be in really good shape.” Andy Seidel, CEO and president of Underground Solutions, said CMWC is an example for other utilities and municipalities. “In a time of constrained municipal budgets and tight capital spending, Consolidated Mutual Water Company has shown that it is possible to do more with the same vs. settling for doing less,” he said. “The key variables to this equation of success are courage, discipline and an open mind. “This project is a call to action for utilities across the country — that with trenchless technology, they can gain ground on their infrastructure problems vs. falling behind.” Jim Rush is editor of UIM. Mike Queen, president of the Consolidated Mutual Water Company, at a pipe bursting project site. The Fusible PVC pipe was fused at city-owned property and transported to the jobsite when needed. 24 Water Utility Infrastructure Management November/December 2011
Water Utility Infrastructure Management (UIM): Helping Municipal Leaders Make the Right Decision Managing water and wastewater systems requires a balancing act that includes inspecting and evaluating critical assets, planning and constructing capital improvements, financing projects, obtaining bonds, coordinating operations and maintenance, meeting local and federal requirements, and securing assets. Anyone who has ever been tasked with administering these important underground facilities knows that it is no easy task. So that’s where UIM comes in. UIM is designed to help utility managers, public works directors and elected officials keep their systems operating in peak condition, covering the above topics as well as broader management topics such as customer service, human resources and crisis management. UIM keeps executive decision-makers informed of the latest trends and technology affecting the business of managing infrastructure – allowing them to run their systems effectively and efficiently. Don’t be left guessing when it comes to making the right decision, subscribe to UIM today. Renew your subscription today Free* Subscription Fax: 888.585.0180 online: www.uimonline.com 1. What is your organization’s primary business (Check one) A. Water AND Wastewater Systems and/or Plants B. Water ONLY Systems and/or Plants C. Wastewater ONLY Systems and/or Plants D. City/County Government E. State/Federal Government F. Engineering Firm G. Financial Institution H. Legal Counsel/Firm I. Other ______________________ 3. Which infrastructure activities are you involved in (check all that apply) A. Consulting, Design & Engineering Services B. Drinking Water Distribution C. Financial Planning D. Infrastructure Security Systems E. Sewer/Wastewater Collection Systems F. Storm Water Collection G. Trenchless Rehabilitation & Construction H. Underground Utility Construction 2. Which title group best describes your job title (check one) A. Mayor B. Commissioner C. Council Member/Chairperson D. City/County Manager E. Owner/President/CEO/COO/Partner/ Principle F. Executive/VP/Senior VP G. Director/Manager/Gen Mgr/Project Manager/Superintendent/Supervisor H. CFO/Treasurer/Comptroller/Finance Director I. Engineer (all) / Consultant / Estimator J. Other _______________________ I. Desalination J. Smart Metering K. Leak Detection L. Energy Efficiency M. Corrosion Control N. Reuse/Recycle O. Pipeline Assessment P. Asset Management Q. Other ________________________ 4. What population does your water system serve (check one) A. 0-1,000 B. 1,001-5,000 C. 5,001-20,000 D. 20,001-100,000 E. Greater than 100,000 For more information visit www.uimonline.com/info PLEASE PRINT CLEARLY Name:______________________________________________________________ Job Title:____________________________________________________________ Company___________________________________________________________ Address:____________________________________________________________ City:_____________________________State/Province:_______________________ Zip/Postal Code:___________________Country: ____________________________ Phone:______________________________________________________________ Fax:________________________________________________________________ I want to renew/subscribe to Water Utility Infrastructure Management FREE* YES Signature: _________________________________________Date: _______________ YES, I want the UIM biweekly E-Newsletter E-mail:_____________________________________________________________ Please allow 4 - 6 weeks for processing *This offer is free in USA & Canada. NO UIM1211
Page 2 and 3: For more information visit www.uimo
Page 4 and 5: CONTENTS November/december 2011 COV
Page 6 and 7: 36 34 Teaming Up for Water Delivery
Page 8 and 9: CONTRIBUTORS Pamela A. Malone serve
Page 10 and 11: FROM THE PUBLISHER’S DESK CWC and
Page 12 and 13: NEWS WEFTEC 2011 Attracts Strong Cr
Page 14 and 15: NEWS MEETINGS U.S. Conference of Ma
Page 16 and 17: NEWS LEAK DETECTION Wachs Water Ser
Page 18 and 19: W A S H I N G T O N R E P O R T Mob
Page 20: For more information visit www.uimo
Page 23: the Wadsworth Mutual Water Company
Page 27 and 28: Background Utility: Douglasville-Do
Page 29 and 30: screen. The ratio of productive, sc
Page 31 and 32: There are common issues across util
Page 33 and 34: P3 Implementation in Canada Public-
Page 35 and 36: Tampa Bay Water, Veolia Water North
Page 37 and 38: eports. Future reviews, validation
Page 39 and 40: The consequences of failure usually
Page 41 and 42: PROFESSIONAL INDEX Company Website
Page 43 and 44: Uniting the Trenchless World Presen

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