RECREATIONAL WATERS EXAM
QUESTIONS AND ANSWERS
The ideal pH range for swimming pools is - Answer-7.2-7.8
The free chlorine residual range for public pools NOT using cyanuric acid stabilizer is
between - Answer-1.0 ppm - 10 ppm
The free chlorine residual for public spas, wading pools, and spray grounds NOT using
cyanuric acid is between - Answer-3.0 ppm - 10 ppm
The free chlorine residual for public pools USING cyanuric acid stabilizer must be
between - Answer-2.0 ppm - 10 ppm
The free chlorine residual for public spas, wading pools, and spray grounds USING
cyanuric acid stabilizer must be between - Answer-3.0 ppm - 10 ppm
The bromine residual for public pools must be between - Answer-2.0 ppm - no max
The bromine residual for public spas, wading pools, and spray grounds is between -
Answer-4.0 - no max
A spray ground and water feature with ultraviolet light disinfection shall be disinfected
continuously at a minimum of ______ while in use. - Answer-40 mJ/cm2
When using cyanuric acid in a public pool, the acceptable range of concentration is
between - Answer-0.0 ppm - 100 ppm
How long does it take for cyanuric acid to dissipate from a public pool? - Answer-
Cyanuric acid does not break down or dissipate. The only way to lower the
concentrations is to drain and refill some or all of the water.
The acceptable temperature for a public pool is between - Answer-no minimum - 104F
Except for spray grounds without standing water, the following equipment must be
provided at all public pools: - Answer-a 17 inch (exterior diameter) life ring with attached
throw rope (min. 3/16 inch diameter) that can span the maximum width of the pool
a 12-ft fixed length rescue pole with permanently attached body hook
If a public pool provides a lifeguard service, the following safety equipment must be
provided: - Answer-A Red Cross 10-person industrial First Aid Kit (or equivalent)
An operating telephone
, A backboard and head immobilizer
For public pools that exceed _____ ft. in length or ____ ft. in width, the pool operator
shall provide a _______ and _______ on at least ______ opposing sides of the public
pool at centralized locations. - Answer-75
50
rescue pole
life ring
two
The following conditions may warrant the closure of a public pool: - Answer-failure to
maintain clean and clear pool water
inadequate disinfection
improper pH
the presence of inhalation hazards
failure to meet microbiological or water quality standards
missing or broken suction outlet covers
missing or broken pool enclosures (fencing and gates)
hazards to pool users
In response to a fecal, vomit, blood contamination, drowning, or near-drowning, the pool
operator must perform the following disinfection procedures: - Answer-close all affected
pool(s), including those that share the same filtration system
remove/discharge contaminating materials to a sanitary sewer
ensure pool pH is at 7.5 or lower
ensure the pool water is at 77F or higher
ensure that the filtration system is operating while the pool reaches and maintains the
required free-chlorine residual for the incident
If a contaminating material in public pool is diarrheal stool, the pool operator shall raise
the free-chlorine concentration to _____ and maintain the concentration for at least
______ when NO cyanuric acid is present. - Answer-20 ppm
12.75
If a contaminating material in a public pool is diarrheal stool, the pool operator shall
lower the pH to ____, raise the free-chlorine concentration to ____, and maintain the
concentration for at least ____ when cyanuric acid is present. - Answer-6.5
40 ppm
30 hours
If a contaminating material in a public pool is solid fecal stool or vomit, the pool operator
shall maintain a free-chlorine residual of ____ for at least ____. - Answer-2.0 ppm
25 minutes
QUESTIONS AND ANSWERS
The ideal pH range for swimming pools is - Answer-7.2-7.8
The free chlorine residual range for public pools NOT using cyanuric acid stabilizer is
between - Answer-1.0 ppm - 10 ppm
The free chlorine residual for public spas, wading pools, and spray grounds NOT using
cyanuric acid is between - Answer-3.0 ppm - 10 ppm
The free chlorine residual for public pools USING cyanuric acid stabilizer must be
between - Answer-2.0 ppm - 10 ppm
The free chlorine residual for public spas, wading pools, and spray grounds USING
cyanuric acid stabilizer must be between - Answer-3.0 ppm - 10 ppm
The bromine residual for public pools must be between - Answer-2.0 ppm - no max
The bromine residual for public spas, wading pools, and spray grounds is between -
Answer-4.0 - no max
A spray ground and water feature with ultraviolet light disinfection shall be disinfected
continuously at a minimum of ______ while in use. - Answer-40 mJ/cm2
When using cyanuric acid in a public pool, the acceptable range of concentration is
between - Answer-0.0 ppm - 100 ppm
How long does it take for cyanuric acid to dissipate from a public pool? - Answer-
Cyanuric acid does not break down or dissipate. The only way to lower the
concentrations is to drain and refill some or all of the water.
The acceptable temperature for a public pool is between - Answer-no minimum - 104F
Except for spray grounds without standing water, the following equipment must be
provided at all public pools: - Answer-a 17 inch (exterior diameter) life ring with attached
throw rope (min. 3/16 inch diameter) that can span the maximum width of the pool
a 12-ft fixed length rescue pole with permanently attached body hook
If a public pool provides a lifeguard service, the following safety equipment must be
provided: - Answer-A Red Cross 10-person industrial First Aid Kit (or equivalent)
An operating telephone
, A backboard and head immobilizer
For public pools that exceed _____ ft. in length or ____ ft. in width, the pool operator
shall provide a _______ and _______ on at least ______ opposing sides of the public
pool at centralized locations. - Answer-75
50
rescue pole
life ring
two
The following conditions may warrant the closure of a public pool: - Answer-failure to
maintain clean and clear pool water
inadequate disinfection
improper pH
the presence of inhalation hazards
failure to meet microbiological or water quality standards
missing or broken suction outlet covers
missing or broken pool enclosures (fencing and gates)
hazards to pool users
In response to a fecal, vomit, blood contamination, drowning, or near-drowning, the pool
operator must perform the following disinfection procedures: - Answer-close all affected
pool(s), including those that share the same filtration system
remove/discharge contaminating materials to a sanitary sewer
ensure pool pH is at 7.5 or lower
ensure the pool water is at 77F or higher
ensure that the filtration system is operating while the pool reaches and maintains the
required free-chlorine residual for the incident
If a contaminating material in public pool is diarrheal stool, the pool operator shall raise
the free-chlorine concentration to _____ and maintain the concentration for at least
______ when NO cyanuric acid is present. - Answer-20 ppm
12.75
If a contaminating material in a public pool is diarrheal stool, the pool operator shall
lower the pH to ____, raise the free-chlorine concentration to ____, and maintain the
concentration for at least ____ when cyanuric acid is present. - Answer-6.5
40 ppm
30 hours
If a contaminating material in a public pool is solid fecal stool or vomit, the pool operator
shall maintain a free-chlorine residual of ____ for at least ____. - Answer-2.0 ppm
25 minutes
