Mexico's Third Largest City Selects Bentley for Geospatial Water Management System

EXTON, Pa.—(BUSINESS WIRE)—Nov. 3, 2004— Bentley Systems, Incorporated, today announced that SIAPA, the water and wastewater utility for Mexico's third largest city, Guadalajara, has selected WaterGEMS, from Bentley's Haestad Methods product line, to manage its water distribution system.

SIAPA selected WaterGEMS after a thorough review of competing hydraulic modeling software products. "Local presence, automatic calibration and design tools, and availability of a complete suite of complementary products for sewer, storm, and water hammer were key factors in our decision to choose Bentley," said Julio Agraz, chief distribution engineer for SIAPA.

Before using WaterGEMS, managing SIAPA's water distribution system was time consuming and inefficient. With WaterGEMS's Scenario Management, SIAPA can now understand and evaluate alternative water distribution management approaches to improve the operation of its system. WaterGEMS's Darwin Calibrator is being used extensively by SIAPA's engineers to shorten validation and simplify calibration tasks. The models will also be used to assist SIAPA in formulating and evaluating best management strategies for the network, which comprises 700 pressure zones.

SIAPA's water distribution system serves more than 8.5 million people and consists of 8,000 kilometers (5,000 miles) of water mains in the Guadalajara metropolitan area, including the municipalities of Zapopan, Tlaquepaque, and Tonala. Some of the older pipes in the network have significant leakage problems, resulting in contaminated supplies and inefficient delivery of water.

Highlights of this project consist of upgrading existing pipes, valves, and hydrants, and analyzing the effects of expanding the system with new developments. Once the models are complete, a supervisory control and data acquisition (SCADA) system will be implemented to monitor the network.

Bentley is also providing professional services to SIAPA, including on-site software training in Mexico and assistance with setting up and developing the utility's initial models.

For more information on WaterGEMS, call +1 800 727 6555 in the United States or Canada or +1 203 755 1666 worldwide, E-mail or, or visit


SIAPA (Sistema Intermunicipal de Agua Potable y Alcantarillado) is the water supply and sewerage utility for the Guadalajara Metropolitan Zone. For more information, visit

About Bentley's Haestad Methods product line

Bentley's Haestad Methods line of engineering software products for water, wastewater, and stormwater management includes WaterGEMS, WaterCAD, WaterSAFE, HAMMER, Darwin Calibrator, Darwin Designer, SewerCAD, SewerGEMS, StormCAD, StormGEMS, SwmmGEMS, CivilStorm, PondPack, GISConnect, SCADAConnect, FlexUnits, PumpMaster, FlowMaster, CulvertMaster, and HEC-Pack.

About Bentley

Bentley Systems, Incorporated, provides software for the lifecycle of the world's infrastructure. The company's comprehensive portfolio for the building, plant, civil, and geospatial vertical markets spans architecture, engineering, construction (AEC) and operations. With 2003 revenues reaching $260 million, Bentley is the leading provider of AEC software to the Engineering News-Record Design 500 and major owner-operators.

To receive Bentley press releases as they are issued, visit For more information, visit

Bentley,the "B" logo, Haestad Methods, WaterGEMS, WaterCAD, WaterSAFE, HAMMER, Darwin Calibrator, Darwin Designer, SewerCAD, SewerGEMS, StormCAD, StormGEMS, SwmmGEMS, CivilStorm, PondPack, GISConnect, SCADAConnect, FlexUnits, PumpMaster, FlowMaster, CulvertMaster, and HEC-Pack are either registered or unregistered trademarks or service marks of Bentley Systems, Incorporated, or one of its direct or indirect wholly-owned subsidiaries. Other brands and product names are trademarks of their respective owners.

Bentley Systems, Incorporated
Christine Byrne, 203-805-0432

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