HIC Pool & Recreational Water Safety 3

Question 1

What is the minimum required depth of water in the shallow end of a public swimming pool for diving to be prohibited by signage?

Accepted Answer

Less than 8 feet

Answer

Diving is typically prohibited in water depths less than 8 feet; pools shallower than this must post 'No Diving' signs to prevent spinal injuries.

Question 2

During a routine inspection, a lifeguard states they conduct water quality tests every 4 hours. What does current CDC guidance recommend?

Accepted Answer

At least once every 2 hours

Answer

CDC's Healthy Swimming guidelines recommend testing pool water chemistry at least every 2 hours during use to ensure safe disinfectant levels.

Question 3

Which factor most significantly increases the formation of disinfection byproducts (DBPs) such as chloramines in pool water?

Accepted Answer

High bather load introducing urea and body fluids

Answer

Bather-introduced nitrogen compounds (urea, sweat, urine) react with chlorine to form chloramines and other DBPs.

Question 4

What action should a health inspector recommend following a formed-stool fecal incident in a public pool?

Accepted Answer

Close pool, raise free chlorine to 2 ppm for 25 minutes at pH 7.5 or below

Answer

CDC protocol for a formed-stool fecal incident requires closure, raising free chlorine to 2 ppm, and a 25-minute contact time at pH ≤7.5 to inactivate potential pathogens.

Question 5

An inspector notes the pool's pressure filter has not been backwashed in three weeks. What is the primary health concern?

Accepted Answer

Reduced filtration efficiency allowing pathogen accumulation

Answer

A clogged filter loses efficiency, allowing pathogens and particulates to pass through and recirculate in the pool water.

(HIC) Health Inspector Certification Practice Test

(HIC) Health Inspector Certification Practice Test

HIC Pool & Recreational Water Safety 3