Transcript WATER SYSTEM SECURITY GUARDING AGAINST SABOTAGE

Work Group on System Integration
Michael Barnes
North Jersey District Water Supply Commission
Bruce Kiselica
US Environmental Protection Agency – Region 2
Question 1
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What are the water system vulnerabilities to
intentional contamination? Raw, storage, transmission,
distribution
Simple event – big problems
On-site items
Explosions key facilities
Backflow issues
Public vision of risk = 0
Timing of responses, existing distribution operations,
flushing, and valve operation
Coliform rule revisions
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Question 2
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What are the “target” contaminants?
Will depend on EWS goals
Move R&D to prioritized needs
Critical dose, availibility,
Tiered approach
Background levels
Surrogates and exist tech.
Site specific issues
Bio, chem-high, rads-low
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Question 3
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What are the objectives of an early warning monitoring
program?
For large watershed system, data share,communication
events, notification for first responders.
Max/reaction time,mission statements, resources,
threat assessment
Limit consequenses of event.
Identify WQ changes,pressure drops.
WQ change intergrate with other info,
internal/external.
eliminate false positives
Final determinations action taken
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Question 4
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What should be considered in setting “alarm levels”?
Establish baseline
Protocols-ind stds, not yet
Auto sample after alarm
Triggers, sampler sensitivity, fate and transport.
Chain of command, be careful!
Std operation of sensor
Need to intergrate sensor results.
Limitation of sensors – pretreatment needed?
Redundancy
Based on system size and entry points
Complex systems require complex response
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Question 5
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Monitoring results – how do you Interpret, use and
report/communicate?
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Or “so what”?
Baseline, seasonal, rainfall events, day/night, need expert
systems, models checking past records
Expert systems, not off the shelf, with customization and $$
maybe.
Tie to public health response, alarms set too high/low
Communicate-last step. Will need more info than just an “alarm”.
Schools, hospitals, links with wtp’s and doh’s
Need to use tiered approach. Confirmation of alarm and
consultations with doh and others.
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For more info, questions, etc…….
Contact:
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[email protected]
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212-637-3879