SURVEY RESULTS OF WATER MAIN FAILURES IN THE UNITED STATES AND CANADA

Papers # 2012 Barcelona

During 2011 Utah State University conducted a survey of utilities across the USA and Canada to obtain data on water main failures of municipal and private water supply systems. A total of 1,051 surveys were distributed and there were 188 respondents. The total length of pipe covered by the survey is 189,264 km (117,603 miles). The focus of this survey was to examine the number of failures utilities were experiencing and how those failures related to the pipe materials used. A goal of this survey was to look at which materials were performing best at the current time and to track how pipe age affects failure rates. The results show that PVC pipe failure rate being approximately one half that of ductile iron and one tenth that of cast iron. The survey also looks at other aspects including current pipe inventories that are in use, how inventories vary on a regional basis, operating parameters, failure modes, and which pipe materials are allowed at utilities.

Please note that the whole article content is available on PPCA website onlySource : 2012 Barcelona


Related papers

A RECENT SURVEY OF WATER MAIN FAILURES IN THE US AND CANADA

Author(s) : Steven Folkman 2018 Las-Vegas

A recent survey again confirms that PVC pipe has the lowest break rate when compared with break rates of ductile and cast iron, asbestos cement, steel, and concrete pipe. Other results of interest to water utilities and engineers are discussed. During 2017, Utah State University conducted a survey of utilities across...

ACCELERATED PIPE TEST METHODS TO EVALUATE PE 100-RC MATERIALS – POSSIBILITIES FOR ISO STANDARDISATION

Author(s) : Thomas R. Kratochvilla, Raimund Eremiasch, Christoph Bruckner 2018 Las-Vegas

In the last years effort has been made to develop and standardise new accelerated test methods to evaluate PE 100-RC materials in short times in form of test bars. The two most important developments, the cracked round bar test (CRB test) and the strain hardening test (SH test) were published as final ISO standards in...

CHARACTERIZATION OF POST-USE POLYETHYLENE AND POLYPROPYLENE RECYCLATE BLENDS FOR PIPE APPLICATIONS

Author(s) : Markus Gall, Reinhold W. Lang, Joerg Fischer, Ansgar Niehoff, Steven Schmidt 2018 Las-Vegas

Despite recent efforts in promoting the utilization of recycled polymeric materials for more diverse and more advanced applications, there are still significant knowledge gaps with regards to the applicability of certain recyclate types for specific “re-use” purposes. When it comes to pipe applications, for...

GUIDELINES FOR CORRUGATED HDPE PIPES MANUFACTURED WITH RECYCLED MATERIALS FOR HIGHWAY CULVERT AND STORM DRAIN APPLICATIONS

Author(s) : Michael Pluimer, Richard Thomas 2018 Las-Vegas

Over the past decade, there have been several key research projects to evaluate the performance of corrugated HDPE pipes manufactured with post-consumer and postindustrial recycled materials for highway and railroad drainage applications. Three of these projects were recently completed and published (NCHRP Project...

MOLECULARLY ORIENTED AWWA C909 PIPE FOR SEISMIC APPLICATIONS

Author(s) : Richard St-Aubin, Dr. Thomas O’Rourke, Dr. Brad Wham, Blake Berger 2018 Las-Vegas

Molecularly oriented polyvinyl chloride (PVC-O) pipe has been found to withstand large ground deformation during seismic events without damage. The properties of PVC-O pipe that support this performance have been investigated in a multi-year testing program undertaken at the Geotechnical Lifelines Large Scale Testing...

SLOW CRACK GROWTH RESISTANCE OF NON-VIRGIN POLYMERS

Author(s) : Andreas Frank, Isabelle J. Berger, Mario Messiha, Carl-Gustaf Ek, Norbert Schuler, Jens-Martin Storheil, Erwin Mayrbäurl, Steve Heeley, Frank Krause, Lodewijk Niemöller, Philippe Gabriëls, Yogesh S. Deshmukh, Florian Arbeiter, Thomas Koch, Gerald Pinter 2018 Las-Vegas

In order to improve the circular economy of polymers in terms of sustainability and reduced carbon footprint, the increased use of recyclates has become a topic of major importance. Due to their long design lifetimes, pipe applications represent an excellent opportunity to create added value to non-virgin polymers. In...

THE WORLD'S FIRST CLASS 3 SAFETY RELATED NUCLEAR PE4710 PIPING PROJECT – 10 YEAR REVIEW

Author(s) : Lonnie Corley, Dane Chang, Harvey Svetlik, Matt Brandes, Thomas Musto, Frank Schaaf, David Fink 2018 Las-Vegas

This paper presents a brief overview of a challenging project at the Callaway Nuclear Power Plant where HDPE was utilized to replace degraded steel buried piping in a Safety Related water system. Callaway was the first Nuclear Power plant to obtain NRC approval and successfully place the HDPE piping system into...

A COMBINATION OF ACCELERATED TEST METHODS TO EVALUATE NEW GENERATION RESINS FOR DISINFECTANT- RESISTANT POLYETHYLENE PIPES

Author(s) : Francis Reny Costa, Anh Tuan Tran, Jeroen Oderkerk, Thomas Hjertberg, Christophe Salles, Ulf W. Gedde, Benjamin Rabaud, Flavia Zraick 2016 Berlin

The premature failure of polyethylene pipes in contact with high chlorine and chlorine dioxide, used as residual disinfectants in drinking water distribution, remains an area of concern for water companies particularly in regions where temperatures are regularly or seasonally high. Multiple factors can amplify the...

A PROPOSED PROCEDURE FOR PVC PIPE TEMPERATURE DE-RATING IN NORTH AMERICA

Author(s) : Steven Folkman, Ron Bishop 2016 Berlin

There are guidelines in AWWA standards for de-rating a PVC pipe’s pressure class if the operating temperature exceeds 23°C. These de-rating factors are appropriate for a system operated at a constant elevated temperature. In the warm desert climates in the USA it is common for the water mains to exceed room...

A SIMPLE DESIGN PROCEDURE FOR PVC PIPE TO ACCOUNT FOR CYCLIC PRESSURE LOADING

Author(s) : Steven Folkman, Ron Bishop 2016 Berlin

One of conditions design engineers face is selecting an appropriate pipe wall thickness (or DR) that will accommodate both maximum operating pressure and repeated surge pressure events. Methods for assessing the number of cycles to failure is quite well developed for PVC pipe. Fracture mechanics approaches can be very...

Members of the Association

BOREALISBOROUGEINEOS O&PIRPCKorea Petrochemical IND. Co., LTDLyondellBasellPetroChina Dushanzi Petrochemical CompanyPRIME POLYMERSABICSCG Chemicals & Thai PolyethyleneSinopecTASNEE
TOP