Integrated Water Quality Security System (IWQSS) William B. Samuels and Rakesh Bahadur Science Applications International Corporation June 27, 2002

Need Two approaches for water utility security Upgrade Infrastructure Costly Long Process Partial Protection Upgrade Preparedness Substantial & Rapid gains Bolster security and response while Infrastructure is being Improved

Purpose Develop an Emergency Response Tool  Assess the population at risk  Determine which Intakes and water treatment plants are impacted  Develop a risk reduction strategy Design Criteria  Minimum manual interaction  Minimum input data required for modeling  Tabular and graphical output

Integrated Water Quality Security System (IWQSS) Treatment System Surface water Water Intake Distribution System IWQSS Water Treatment Process (WTP)

IWQSS Advantages Comprehensive approach to water quality security Analyze effects in raw water :  upstream of the intake of a water supply system  at the water intake Analyze effects at the treatment plant Analyze effects in finished water  At a service reservoir  At a point in the distribution system

Scope of IWQSS Water Treatment Processes Constituents of Concern RiverSpill PipelineNet IWQSS Utility specific US wide

Constituents of Concern Information Sources 42 CFR part 72 – biological agents USAMRIID - CWA Dr. Deininger – SAIC consultant

RiverSpill Module Emergency response tool for fate and transport of contaminants Uses real-time stream flow data Operational for US

RiverSpill Design Principles  Develop national-scale model framework for emergency response  capable of performing hydraulic transport routing and connectivity of surface waters  Uses best available national-scale data  Address the needs of a broad user community

RiverSpill Architecture

System Components ArcView 3.2 Network Analyst 1.0 Databases Enhanced Reach File (EPA, USGS) USGS Real Time Stream Flow Public Water Supplies (EPA)

RiverSpill Operation Location of incident Fate and transport of contaminant to the nearest intake Identify the population served by the water treatment plant.

RiverSpill Users and Applications Users Federal, State, & Local government agencies Water Utilities Applications Planning Exercises Response to Accidental & Deliberate Acts

Flow Predictions - How well does it work ?

Travel Time Skill Assessment - observations 1 vs. model calculations 1 Jobson, 1996, Prediction of Travel time and Longitudinal Dispersion in Rivers and Streams, USGS Report Rivers Analyzed

Effectiveness of Water Treatment

Process Efficiency

Percent Removal

PipelineNet Module Module components EPANET hydraulic model EPANET Toolkit ArcView GIS

PipelineNet Architecture

PipelineNet Operation Hydraulic simulation Water quality simulation Concentration Water tracing Water ageing Calculation of population and infrastructure at risk

PipelineNet Users and Applications Users Water Utilities Applications Normal operations Planning Exercises Response to Accidental & Deliberate Acts Operational Use Utah Olympic Public Safety Command Salt Lake City, Murray City, Provo, Park City

Calibration Criteria Followed AWWA calibration guidelines Compared observed and simulated water level in the tanks

Murray City Results

PipelineNet

IWQSS Summary Spill Location Model Fate and Transport Simulate Water Treatment Effectiveness Model Water Distribution Calculate Population and Infrastructure at Risk

RiverSpill Output Putting It All Together