Model Report

PIPELINENET

General Information
User Information
Model Science

Last Revision Date:	11/16/2009	View as PDF
General Information		Back to Top
Model Abbreviated Name:	PIPELINENET
Model Extended Name:	PIPELINENET
Model Overview/Abstract: PipelineNet is a Geographic Information System (GIS)-based software tool with integrated data base capability that can be used to model the flow and concentration of contaminants in a city’s drinking water pipeline infrastructure. It contains a pipe network hydraulic model (EPANET), maps, and a US Census Population database. The PipelineNet model estimates the population at risk due to the introduction of contaminants in the public water supply and graphically maps this population. The PipelineNet model permits the user to model the flow and concentration of a biological or chemical agent within a city or municipal water system. This model assesses the effects of water treatment on the agent, models the flow and concentration of an agent through the water distribution system within a city or municipality, and calculates the population at risk. Substantive Changes from Prior Version Compatible with ARCGIS 9.x Full EPANET functionality Sensor Locator Tool Plans for Further Model Development Integration of TEVA functionality for sensor location
Keywords:	Water distribution system modeling, contamination, threat detection, contamination warning system
Model Technical Contact Information: Agency Contact Robert Janke Water Infrastructure Protection Division U.S. EPA/NHSRC Mail Stop NG-16/NB21F 26 West Martin Luther King Dr. Cincinnati, Ohio 45268 Office Phone: 513-569-7160 Fax: 513-487-2555 Cell Phone: 513-477-9307 http://www.epa.gov/nhsrc/water/teva.html janke.robert@epa.gov Developer Contact William B. Samuels, Ph.D Assistant Vice President Science Applications International Corporation 1710 SAIC Drive McLean, VA 22102 Office: (703) 676-8043 Cell: (703) 589-0455 Email: william.b.samuels@saic.com Web: http://eh2o.saic.com
Model Homepage:	http://eh2o.saic.com/

User Information		Back to Top
Technical Requirements
Computer Hardware Standard desktop or laptop computer
Compatible Operating Systems Windows XP
Download Information
By Request
Using the Model
Basic Model Inputs EPANET distribution system model and associated input parameters
Basic Model Outputs Water quality Ageing Tracing Hydraulic parameters: flow, head, pressure, velocity Population and critical resources at risk Sensor locations
User Support
User's Guide Available? By Request
Availability of User Support Good, contact William Samuels or Rakesh Bahadur at SAIC
User Qualifications High. Knowledge and experience with water distribution system modeling, familiarity with EPANET and ARC GIS 9.X

Model Science		Back to Top
Problem Identification SAIC under contract to the Technical Support Working Group (TSWG) developed a GIS based water distribution model, PipelineNet, for application during the Salt Lake City Olympics in early 2002 (Samuels and Bahadur 2001). The PipelineNet system was further developed with additional functionality for potential purposeful contamination events with funding from EPA. PipelineNet monitors and projects the fate and transport of potentially introduced contaminants in water distribution systems, particularly as related to use and application in an emergency response situation. It can be used for determining optimal placement of extraction and monitoring instruments, to help develop monitoring regimes for routine screening of distribution system water quality, and/or to predict/track the fate and transport of contaminants in a system in order to effectively respond to a purposeful contamination incident. PipelineNet is an ArcGIS based system, which integrates hydraulic and water quality models with existing databases. PipelineNet integrates EPANET and ArcGIS to give emergency managers real time information estimating the risks to public water supplies. This integration gives PipelineNet all the computational (hydraulics and water quality) capabilities of EPANET and all the functionality of ArcGIS. The integrated system calculates, locates, and maps the population at risk from the introduction of contaminants to the public water supply. The model performs the following functions: Simulates the flow and concentration of biological or chemical contaminants in a city or municipality's water distribution system from single and multiple sources Simulates water tracing and water ageing Assesses the effects of water treatment on the contaminant. Helps planners with present and future predictions.
Summary of Model Structure and Methods The hydraulic modeling component of PipelineNet is EPANET. EPANET performs extended period simulation of hydraulic and water quality behavior within pressurized pipe networks. A network can consist of pipes, nodes (pipe junctions), pumps, valves and storage tanks or reservoirs. EPANET tracks the flow of water in each pipe, the pressure at each node, the height of water in each tank, and the concentration of a chemical species throughout the network during a simulation period comprised of multiple time steps. In addition to chemical species, water age and source tracing can also be simulated. EPANET was developed by the Water Supply and Water Resources Division (formerly the Drinking Water Research Division) of the U.S. Environmental Protection Agency's National Risk Management Research Laboratory. Figure 2 shows components of a typical network. Typical Network for EPANET
Model Evaluation J. Bahadur, R. and Samuels, W.B. Integrating the ArcGIS Water Distribution Data Model into PipelineNet, Proceedings ESRI International User Conference, July 25-29, 2005, San Diego, CA. Samuel Samuels, W.B., 2005, Advancements in Waterborne Contamination Transport Tools: ICWater, RiverSpill and PipelineNet, Proceedings AWWA Water Security Congress, April 10-12, 2005, Oklahoma City, OK. Bahadur, R., Samuels, W.B, and Pickus, J. 2003. Case study for a distribution system emergency response tool, American Water Works Association Research Foundation Report No. 2922, Denver, CO, 50p. Samuels, W.B., Bahadur, R., Amstutz, D., and Pickus, J., 2003, PipelineNet: An Extended Period Simulation Hydraulic Model For Distribution System Emergency Response, Proceedings AWWA DSS: The Distribution & Plant Operations Conference and Exposition, September 28 – October 1, 2003, Portland, OR Bahadur, R., Samuels, W.B., Grayman, W., Amstutz, D. and Pickus, J., 2003, PipelineNet: AModel for Monitoring Introduced Contaminants in a Distribution System, Proceedings, World Water and Environmental Resources Congress, June 23-26, 2003, Philadelphia, PA
Key Limitations to Model Scope Ability to simulate multiple contamination scenarios or an ensemble of scenarios and then analyze the database statistically. Ability to estimate health impacts given dose response information that is contaminant specific. Ability to determine optimal sensor locations based on the reduction of some performance measure or objective
Case Studies Bahadur, R., Samuels, W.B, and Pickus, J. 2003. Case study for a distribution system emergency response tool, American Water Works Association Research Foundation Report No. 2922, Denver, CO, 50p.

Model Report

PIPELINENET

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