Broomfield, Colorado USA, June 22, 2005 - In its ongoing effort to provide the global wastewater industry with the world's most comprehensive and innovative GIS-centric modeling and design solutions, MWH Soft, a leading global provider of environmental and water resources applications software, today announced the worldwide availability of the V3 Generation of InfoSWMM for ArcGIS (ESRI, Redlands, CA). The release marks the most significant milestone to date in the evolution of the company's flagship urban drainage systems modeling product, the leading software solution for the effective management and operation of wastewater and stormwater collection systems. With this new and improved version, the company seeks to further strengthen its market leadership by delivering even more sophisticated solutions.

As a full-featured urban drainage network analysis and design program, InfoSWMM delivers the highest rate of return in the industry. All operations of a typical sewer system - from analysis and design to management functions such as water quality assessment, pollution prediction, urban flooding, real-time control and record keeping - are addressed in a single, fully integrated geoengineering environment. The program offers users unprecedented power in managing urban runoff and wet weather water quality problems in combined, sanitary and storm sewers, optimizing BMP and LID designs, and meeting SSO and CSO regulations. The model also offers highly sophisticated Real-Time Control (RTC) schemes for the operational management of wastewater systems and hydraulic structures. The unparalleled performance modeling of InfoSWMM sets new benchmarks in scalability, reliability, functionality and flexibility within the powerful ArcGIS environment.

InfoSWMM V3 features a host of customer-requested enhancements and significant innovations in engineering productivity and efficiency. These improvements greatly simplify, accelerate, and integrate urban drainage network engineering, helping wastewater engineers develop better designs and operational improvements faster. They include an exponential increase in computational speed and performance; a new water quality routing algorithm that produces more robust results under Dynamic Wave flow routing; significantly improved stability for hydraulic computations under Dynamic Wave flow routing; new flow routing option that allows routing calculations to be skipped during periods of steady flow, greatly reducing the time required for continuous simulations; new statistics and frequency analysis module; enhanced results reporting and display; and new user productivity and data validation tools that empower users across the entire spectrum of their activities.

InfoSWMM is quickly becoming the must-have solution for comprehensive enterprise-wide geospatial sewer collection systems engineering. With an intuitive working environment and new cutting-edge features and improvements, V3 Generation delivers unmatched capabilities to the wastewater industry, backed by unparalleled technical support. "Our mission is to cultivate a thriving wastewater modeling and design community, starting with the individual user, and our goal is to document progress every day," said Paul F. Boulos, Ph.D., President and COO of MWH Soft. "That's why we've listened so closely to our customers and invested so much in InfoSWMM to come up with innovations worthy of Generation V3. InfoSWMM is not only the world's first and only urban drainage systems modeling solution certified by the National Association of GIS-Centric Software (NAGCS); it also offers the most powerful and comprehensive geocentric modeling capabilities available. We are proud to ship a significantly refined tool set that will make an immediate difference in our clients' productivity and performance."

Support of the powerful ArcGIS platform as well as USEPA's industry-standard Stormwater Management Model (SWMM 5) makes this a milestone release for effective GIS-centric planning, design, rehabilitation, and expansion of sanitary, storm and combined sewer collection systems. InfoSWMM also offers powerful graphics and reporting tools that make its sophisticated modeling applications fast and easy, regardless of users' technical expertise - extending its benefits across the entire enterprise.

"InfoSWMM V3 represents a significant leap forward," said Paul M. Hauffen, President and CEO of IDModeling in Brea, California, and an industry-modeling expert. "It includes not only several enhancements I suggested, but many more powerful and useful new capabilities I never imagined. The latest release of InfoSWMM is going to transform day-to-day modeling tasks and improve workflows dramatically. Everyone can now be a power user on some level, and explore and evaluate sound infrastructure improvement options far more effortlessly than ever before."

"At MWH Soft, we've always invested heavily in usability - but in InfoSWMM V3, we've made a particularly aggressive push to create very powerful and comprehensive analysis tools and first-ever features that are easy for every engineer in every organization to use," said Trent Schade, PE, Senior Client Service Manager and National Urban Drainage Technology Leader for MWH Soft. "Complexity doesn't have to scare the average user away. InfoSWMM V3 proves that wastewater utilities and engineering organizations worldwide can own the most sophisticated urban drainage analysis and design tool without sacrificing accuracy, speed or ease of use. MWH Soft's new release underscores our software's global penetration and market acceptance, both rooted in its core value: powerful network modeling and design in a single, easy-to-use and affordable package."

Pricing and Availability
Upgrade to InfoSWMM V3 is now available worldwide by subscription to the 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. 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 and GIS enabled products created by MWH Soft, empower thousands of engineers across the globe to competitively manage, design, and operate highly efficient and reliable infrastructure systems. For more information, call MWH Soft at (626) 568-6868, or visit www.mwhsoft.com.