AWWA Risk Assessment and Mitigation 3

Question 1

Which chemical contamination scenario poses the GREATEST challenge for a water utility's risk mitigation plan due to detection difficulty?

Accepted Answer

Odorless, colorless toxin introduced post-treatment

Answer

Turbidity spike from a storm event

Answer

Algae bloom in a surface reservoir

Answer

Iron and manganese from a groundwater source

Question 2

A utility's Emergency Response Plan (ERP) should be updated whenever a significant change occurs. Which change MOST warrants an immediate ERP revision?

Accepted Answer

Addition of a new water source or treatment process

Answer

A minor software patch to billing software

Answer

Repainting the facility exterior

Answer

Hiring a new administrative assistant

Question 3

What does 'residual risk' mean in the context of water system risk management?

Accepted Answer

Risk remaining after mitigation measures have been implemented

Answer

Risk eliminated by applying all possible countermeasures

Answer

Risk transferred entirely to insurance providers

Answer

Risk associated only with legacy infrastructure

Question 4

Which approach best describes a 'defense-in-depth' strategy for a water treatment plant?

Accepted Answer

Applying multiple overlapping layers of security controls

Answer

Relying on a single high-quality perimeter fence

Answer

Outsourcing all security functions to a third party

Answer

Installing one comprehensive alarm system

Question 5

For a water utility performing a risk assessment, 'asset characterization' involves:

Accepted Answer

Documenting all physical, cyber, and chemical assets and their criticality

Answer

Calculating the annual maintenance budget

Answer

Training staff on emergency procedures

Answer

Filing reports with the state drinking water program

Question 6

A cross-connection between the potable water system and a non-potable source represents which type of hazard?

Accepted Answer

Water quality contamination hazard

Answer

Natural hazard

Answer

Physical security hazard

Answer

Cyber threat

Question 7

In risk prioritization, which scenario would typically receive the HIGHEST risk ranking?

Accepted Answer

Low likelihood, high consequence event with no countermeasures

Answer

Low likelihood, low consequence event

Answer

High likelihood, low consequence event

Answer

Moderate likelihood, moderate consequence event with strong countermeasures