Integrated Water Quality Security System IWQSS

1
Integrated Water Quality Security System
(IWQSS)

• William B. Samuels and Rakesh Bahadur
• Science Applications International Corporation
• June 27, 2002

2
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

3
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

4
Integrated Water Quality Security System (IWQSS)
Water Treatment Process (WTP)
5
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

6
Scope of IWQSS
US wide
Utility specific
7
Constituents of Concern

• Information Sources
• 42 CFR part 72 biological agents
• USAMRIID - CWA
• Dr. Deininger SAIC consultant

8
(No Transcript)
9
RiverSpill Module

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

10
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

11
RiverSpill Architecture
12

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

13
RiverSpill Operation

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

14
RiverSpill Users and Applications

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

15
(No Transcript)
16
Flow Predictions - How well does it work ?
17
Travel Time Skill Assessment - observations1 vs.
model calculations
Rivers Analyzed
1 Jobson, 1996, Prediction of Travel time and
Longitudinal Dispersion in Rivers and Streams,
USGS Report 96-4013
18
Effectiveness of Water Treatment
19
Process Efficiency
20
Percent Removal
21
PipelineNet Module

• Module components
• EPANET hydraulic model
• EPANET Toolkit
• ArcView GIS

22
PipelineNet Architecture
23
PipelineNet Operation

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

24
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

25
Calibration Criteria

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

26
Murray City Results
27
(No Transcript)
28
PipelineNet
29
IWQSS Summary
Calculate Population and Infrastructure at Risk
Model Water Distribution
Simulate Water Treatment Effectiveness
Model Fate and Transport
Spill Location
30
Putting It All Together
RiverSpill Output