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MWH Soft Announces InfoSWMM Designer, Delivering Groundbreaking Solution for Flooding and Pollution Management


Revolutionary New Product Gives Wastewater Engineers Unparalleled Power to Eliminate Sewer Overflows.

Broomfield, Colorado USA, November 16, 2005 - In its ongoing quest to equip the global wastewater industry with the world’s most comprehensive and innovative GIS-centric modeling and design solutions, MWH Soft today announced the final phase of development of InfoSWMM Designer for ArcGIS (ESRI, Redlands, CA). The new optimization module marks a new high point in the evolution of the company’s flagship urban drainage modeling product, firmly establishing it as the number one choice for the effective evaluation, management, rehabilitation, design, and operation of wastewater and stormwater collection systems.

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 gives users unprecedented strength 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.

Extremely powerful, InfoSWMM can be used to model the entire land phase of the hydrologic cycle as applied to urban stormwater and wastewater collection systems. The software can perform single event or long-term (continuous) rainfall-runoff simulations accounting for climate, soil, land use, and topographic conditions of the watershed. In addition to simulating runoff quantity, InfoSWMM can also predict runoff quality - including buildup and washoff of pollutants from primarily urban watersheds.

The software incorporates full dynamic solution modeling of backwater effects and reverse flow, open channels, trunk sewers, storage and treatment units, pumps and complex hydraulic structures (e.g., weirs and orifices). An advanced real-time control scheme facilitates the optimization of storage and operation. Powerful graphics and reporting tools make these sophisticated modeling applications fast and easy, regardless of users’ technical expertise. InfoSWMM also supports a variety of specialized treatment plant control devices and river profiles, providing an Integrated Catchment Management solution for modeling the sewer system, the receiving water and the wastewater treatment plant in an integrated manner.

Sewer overflows are a leading cause of water pollution in the nation’s lakes, streams and inland bays. The untreated sewage from these overflows contains microbial pathogens, suspended solids, toxics, nutrients, trash, and other pollutants that deplete dissolved oxygen and can contaminate our waters, causing serious water quality problems and threatening drinking water supplies, fish and shellfish. This sewage can also back up into basements, causing property damage and creating threats to public health for those who come in contact with the untreated sewage.

The new InfoSWMM Designer module leverages the power of advanced Genetic Algorithms optimization technology to automatically select the most cost-effective solution to flooding and pollution management, using a combination of pipe upsizing, storage, pumping and new piping to eliminate unwanted sewer overflows and achieve targeted system performance requirements. It is the ultimate tool to help engineers produce the best possible design and improvement alternatives with minimum effort and at significant cost savings. These capabilities will greatly assist wastewater utilities in planning and designing reliable systems and optimizing their capital improvement programs - leading to healthier communities, cleaner beaches, and fish and shellfish that are safer to eat.

Other InfoSWMM Suite modules include:
A Dry Weather Flow Allocator extension that automatically computes and assigns wastewater loads generated by various customer categories, based on land use, population, or meter data.

A Subcatchment Manager extension that automatically defines all subcatchments and calculates their hydrologic parameters.

An Optimal Calibration extension that automatically adjusts sewer parameters to match any combination of flow, depth, and velocity measurements. These parameters can include any combination of subcatchment, soil, aquifer, RDII, and conduit properties.

“Control of sewer overflows is vital to reducing risks to public health and protecting the environment from water pollution,” said Paul F. Boulos, Ph.D, President and Chief Operating Officer of MWH Soft. “InfoSWMM Designer gives our clients the very best tool for performing the highly sophisticated urban stormwater runoff modeling they need to shape their stormwater runoff management plans and control sanitary sewer overflows (SSOs) and combined sewer overflows (CSOs). It will help them pinpoint the most cost-effective way to remove all targeted flooding, keep their systems operating efficiently well into the future, and safeguard against adverse health and environmental effects. We are proud to introduce a revolutionary product that will make an immediate difference in people’s lives.”

Pricing and Availability
The new InfoSWMM Designer extension will be available worldwide in December 2005 by subscription to the Platinum Program. Subscription members will be able to download the new extension free of charge directly from 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 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


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