Risk Assessment & Mitigation Flashcards

A pool operator discovers a Cryptosporidium outbreak has been linked to their facility. What is the recommended CDC hyperchlorination protocol?

Answer: Raise free chlorine to 20 ppm at pH 7.5 or lower for at least 28 hours

The CDC recommends hyperchlorination to 20 ppm free chlorine at pH 7.5 or below for a minimum of 28 hours (CT value) to inactivate Cryptosporidium oocysts.

Which factor is MOST important when assessing lightning risk at an outdoor aquatic facility?

Answer: The distance to the nearest storm cell and local weather monitoring protocols

Real-time weather monitoring and defined protocols for clearing the pool when lightning is within a safe distance (typically 8 miles/30-30 rule) are the most critical factors.

During a risk walk-around, a CPO notices the pool depth markers are faded and partially illegible. Which risk does this PRIMARILY create?

Answer: Bathers may dive into shallow water without recognizing the depth hazard

Illegible depth markers prevent bathers from recognizing shallow water, increasing the risk of spinal injury from diving accidents.

A CPO is reviewing the Aquatic Risk Management Plan (ARMP). Which element is MOST critical for a drowning emergency response?

Answer: A written emergency action plan (EAP) with clear roles and practiced drills

A practiced Emergency Action Plan with defined roles for all staff is the cornerstone of effective drowning response and is required by most health codes.

What is the primary risk associated with a pool's total dissolved solids (TDS) exceeding 2,500 ppm above the source water baseline?

Answer: Corrosion of pool surfaces, equipment, and reduced chemical efficacy

Elevated TDS reduces water quality, causing corrosion of metal components, staining, and reduced effectiveness of sanitizers and other pool chemicals.

A pool staff member is alone when a bather reports another swimmer at the bottom of the pool. The staff member cannot swim. What should the ARMP require them to do FIRST?

Answer: Call 911 and then attempt to reach the victim with a reaching pole

Non-swimming staff should immediately call 911 and attempt a non-entry rescue (reaching pole, ring buoy, rope) — entry rescues by non-swimmers increase the casualty count.

Which scenario requires a CPO to conduct an unscheduled risk re-assessment of a pool facility?

Answer: A significant change in bather load due to a community event or season

A significant increase in bather load changes the risk profile and may require additional lifeguard coverage, enhanced chemical dosing, and revised emergency procedures.