Broomfield, Colorado USA, June 3, 2005 - In its ongoing effort to equip the global wastewater industry with the world's most comprehensive and innovative geospatial modeling and design solutions, MWH Soft, a leading global provider of environmental and water resources applications software, today announced the worldwide availability of H2OMAP SWMM, a groundbreaking GIS-based application for analyzing, modeling, designing, operating, securing, and managing sanitary, storm, and combined sewer systems.

Supporting native GIS data as well as the USEPA's industry-standard (and FEMA-approved) Stormwater Management Model (SWMM 5), this milestone release integrates the needs of both GIS and wastewater engineering professionals in one complete, affordable package. Distinguished by a compelling combination of cutting-edge GIS functionality and hallmark hydraulic, hydrologic and water quality simulation capabilities, H2OMAP SWMM delivers a comprehensive and cost-effective solution for managing urban runoff and wet weather water quality problems in complex sewer systems. It also offers users unprecedented power in optimizing BMP and LID designs and meeting SSO and CSO regulations.

Unlike many competing solutions that alter GIS data and transfer only selected modeling-related information, H2OMAP SWMM operates within a common, high-performance geospatial framework to access GIS data directly and accurately, within their unaltered native format, in a highly secure environment. This multifaceted product vastly enhances the capacity of wastewater utilities to streamline and automate their sewer collection management activities; make informed decisions; collaborate more effectively; and capitalize on their talent, data and resources to create better work processes and closer customer ties.

"H2OMAP SWMM demonstrates our steadfast commitment to listening to our customers and quickly responding to their needs," said Paul F. Boulos, President and Chief Operating Officer of MWH Soft. "The program is loaded with all the geospatial wastewater engineering features and functionality imaginable, giving the industry a revolutionary modeling tool. I'm particularly proud that we were able to deliver it less than six months after releasing our highly acclaimed ArcGIS-centric InfoSWMM software. Our unique water resources software suite sets a new standard for GIS-based modeling. All of us are excited by its potential to make an immediate difference in people's lives and the ecological health of our nation's waterways."

Offering direct support to geodatabases, H2OMAP SWMM seamlessly integrates asset and business planning with highly advanced (fully) dynamic flow analysis and optimization functionality to optimize management of urban stormwater and wastewater collection systems. Its exceptionally fast, robust and efficient hydraulic simulation capabilities can be used to model the entire land phase of the hydrologic cycle. Users can perform single event or long-term (continuous) rainfall-runoff simulations that account for climate, soil, land use, and topographic conditions of the watershed. H2OMAP SWMM can not only simulate, but accurately predict runoff quality - including buildup and washoff of pollutants from primarily urban watersheds. The model also offers very sophisticated Real-Time Control (RTC) schemes for the operational management of wastewater systems and hydraulic structures. This unparalleled performance modeling sets new benchmarks in scalability, reliability, functionality and flexibility for power GIS users.

H2OMAP SWMM is ideally suited for many types of dynamic sewer system analysis, including:

Modeling rainfall-runoff of urban and rural watersheds
Designing and sizing drainage system components for flood control
Sizing detention facilities and their appurtenances for flood control and water quality protection
Flood plain mapping of natural channel systems
Master planning sewer collection systems and urban watersheds
Conducting system evaluations associated with USEPA regulations, including NDPES permits, CMOM, and TMDL
Designing control strategies to minimize combined sewer overflows
Assessing the impact of inflow and infiltration on sanitary sewer overflows
Generating non-point source pollutant loadings for waste load allocation studies
Evaluating the effectiveness of BMPs for reducing wet weather pollutant loadings
Analyzing river hydraulics and associated flooding problems
"This release underscores MWH Soft's unwavering commitment to helping customers meet critical business and environmental challenges by giving them tools they can trust to help them innovate, enhance productivity and performance, optimize processes and efficiency, and deliver quality solutions faster and more cost-effectively," said Trent Schade, PE, Senior Client Service Manager and National Stormwater Technology Leader for MWH Soft. "H2OMAP SWMM is the ideal choice for organizations that need a single reliable, affordable and easily implemented solution for managing their sanitary, storm and combined sewer systems. It's the ultimate tool for creating the highly sophisticated modeling they need to shape urban stormwater runoff management plans and control sanitary and combined sewer overflows. With this release, we are delivering on our promise to make enterprise water resources GIS modeling easy and affordable."

Pricing and Availability
H2OMAP SWMM is available worldwide by subscription. Prices start at $5,000. For the latest information on the MWH Soft Subscription Program, including availability and purchase requirements, 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.