Broomfield, Colorado USA, September 3, 2008 — MWH Soft, a leading global provider of environmental and water resources applications software, today announced the worldwide release of Generation 4 of InfoWater UDF, its industry-leading geocentric solution for unidirectional flushing of drinking water distribution systems. The latest release features a host of new and unique capabilities to help water utilities better manage the systematic flushing of their water distribution systems. By removing stagnant water along with mineral and sediment deposits that accumulate over time, the process effectively restores hydraulic capacity and improves water quality.

Among its numerous advantages, InfoWater UDF can help utilities improve water quality by restoring the disinfectant residual, reducing bacterial regrowth, dislodging biofilms, removing sediments and deposits, controlling corrosion, restoring flows and pressures, eliminating taste and odor problems, and reducing disinfectant demand throughout the system. These benefits prolong the life expectancy of the distribution system and reduce the potential for waterborne disease outbreaks.

Built atop ArcGIS 9.3 (ESRI, Redlands, California), InfoWater UDF V4 seamlessly integrates advanced dynamic water network modeling with the latest generation of ESRI GIS technology. The groundbreaking application capitalizes on the intelligence and versatility of the GIS geodatabase architecture to help water utilities develop flushing sequences for each flushing zone. Using minimum flushing velocity and shear stress criteria, it quickly identifies which fire hydrants and water main valves should be manipulated for proper cleaning without excessive pressure drops (below 20 psi), maintaining the desired level of hydraulic performance in the system.

The program accurately considers the temporal variation in flow velocity magnitude and direction caused by changes in demands, tank levels and operating conditions. It also computes minimum flushing time, total flushing volume and pipe length, flushing velocity of every pipe in the sequence, and available fire flow at the minimum residual pressure. The hydraulic impact of each flushing sequence is monitored to ensure that the desired minimum pressure is maintained throughout the system.

An accompanying comprehensive field journal (flush book) provides all the information a water utility needs to effectively implement an optimal unidirectional flushing program for superlative cleaning at maximum cost savings. A complete, detailed series of graphical maps and technical data sheets show which fire hydrants and valves must be manipulated for systematic, unidirectional cleaning of each flushing zone and flush sequence to be analyzed. The journal also includes important information on pressure and flow, flushing volume, flushing duration, and water quality.

InfoWater UDF has been widely and very successfully used by utilities and engineering firms in the US and Canada to determine cost-effective and reliable flushing sequences for restoring hydraulic capacity and improving distribution system water quality. “We’re currently using InfoWater UDF for the City of Melbourne, FL with great success, reported C. Robert Reiss, Ph.D, PE, President of Reiss Environmental, Inc. in Orlando, Florida. “This unique, remarkably powerful and engineer-friendly program is an invaluable tool for helping water utilities design a flushing program to best maintain water quality and system capacity while reducing flush-water volumes. It allows us to use both minimum shear stress and minimum velocity as flushing criteria, making it very flexible and adaptive to any system. It offers significant benefits to the water industry.”

The new release includes more than 50 customer-requested enhancements that greatly increase productivity, optimize flushing design, facilitate quality flushing workflow sequences and field map generation, organize and manage work processes more efficiently, and enhance the realism of displayed results. The new version also delivers blazing performance gains.

The software allows both new and experienced users to quickly set up UDF network models and obtain flushing plans that are both cost-effective and reliable, making unidirectional flushing a far more easy and enjoyable task. It gives water utility engineering, planning and maintenance teams powerful new tools to help them produce accurate, high-quality flushing designs that are complete, effective, and ready for field implementation. These enhancements propel InfoWater UDF into the next generation, carrying on MWH Soft’s time-honored practice of continually adding value to its software and bringing new, unsurpassed modeling capabilities into the mainstream, backed by superior high-quality technical support.

Toronto Water, which handles all water distribution operations for the City of Toronto, Ontario, Canada, has been using InfoWater UDF to pilot UDF testing in the City’s water distribution system. “As one of the first North American users of InfoWater UDF, we’re very pleased that MWH Soft continues to incorporate many of the tools and functionalities we have suggested,” said Candice Au, P. Eng., Engineer for Watermain Asset Planning for Toronto Water. “Our Operations groups are very interested in the capabilities of the program and are in the process of piloting UDF areas with the help of InfoWater UDF.”

“The unprecedented market success of InfoWater UDF is a direct result of our determination to respond to customer needs and provide the comprehensive functionality they require along with superior speed, performance and usability,” said Paul F. Boulos, Ph.D, President and COO of MWH Soft. “Our goal in creating V4 was to deliver the simplest, most powerful and comprehensive unidirectional flushing software with the highest pound-for-pound return — surpassing all competitive offerings by far. This is the ultimate tool for designing optimal flushing programs to sustain safer, more reliable drinking water supply infrastructures. We are proud to continue refining this best-in-class product, knowing that it will make an immediate difference in our lives, our communities, and our society.”

Pricing and Availability
Upgrade to InfoWater UDF V4 is now available worldwide by subscription to the MWH Soft Gold or Platinum program. Subscription members can immediately download the new version free of charge directly from www.mwhsoft.com. The MWH Soft Subscription Program is a friendly customer support and software maintenance program that ensures the longevity and usefulness of MWH Soft products. It gives subscribers instant access to new functionality as it is developed, along with automatic software updates and upgrades. MWH Soft product extensions are available only through the Platinum Program. For the latest information on the MWH Soft Subscription Program, visit www.mwhsoft.com or contact your local MWH Soft Certified Representative.

About MWH Soft
MWH Soft is a leading global provider of technical and infrastructure software and professional solutions designed to meet the technological needs of utilities, government industries, and engineering organizations worldwide. Its clients include the majority of the largest North American cities and ENR top design firms. The multifaceted, state-of-the-art CAD, GIS and Internet enabled products created by MWH Soft empower thousands of engineers across the globe to competitively plan, manage, design, protect, maintain and operate highly efficient and reliable infrastructure systems. For more information, call MWH Soft at (626) 568-6868, or visit www.mwhsoft.com.

MWH Soft Contact
Adam J. Simonsen
Director of Marketing
Adam.Simonsen@mwhsoft.com
(626) 568-6868