Wake county CPO Exam Questions and
Answers (Latest Update 2023/2024)
How long does the wake county CPO certificate last
5 years
How often must daily readings of disinfectant and pH levels be taken?
2 times during daylight hours with a legible CPO signature. A minimum of six hours apart. Operator
must tea and record one of these.
What is the CPO checklist and when should it be used?
Should be filled out daily in the permitted time by operator. It is a list of maintenance guidelines
provided by environmental services.
What do you do when the operator is unavailable to do a daily check of the pool?
The operator needs to find a qualified replacement operator for that day.
What water quality violations require pool closure?
-Fecal matter
-presence of algae
-presence of bacteria or fecal chloroform
-no measurable presence of disinfectant
What do you do when fecal matter is introduced to the pool?
It is to be drained and disinfected
Pool: Free chlorine min/Max
Minimum: 1 ppm maximum: 10 ppm
Pool: PH Minimum and Maximum
Minimum: 7.2
Maximum: 7.8
Wading pool/spa: free chlorine min/max
Minimum: 2 ppm
Max: 10 ppm
Wading pool/spa pH min/max
Minimum: 7.2
Max: 7.8
What are the residential pool fencing requirements?
4 foot minimum height fence completely enclosing the swimming pool area, with no more than 4 inch
gaps between bars of the fence. No more than a 4 inch space between the fence and the ground.
Must be self closing and self latching.
Answers (Latest Update 2023/2024)
How long does the wake county CPO certificate last
5 years
How often must daily readings of disinfectant and pH levels be taken?
2 times during daylight hours with a legible CPO signature. A minimum of six hours apart. Operator
must tea and record one of these.
What is the CPO checklist and when should it be used?
Should be filled out daily in the permitted time by operator. It is a list of maintenance guidelines
provided by environmental services.
What do you do when the operator is unavailable to do a daily check of the pool?
The operator needs to find a qualified replacement operator for that day.
What water quality violations require pool closure?
-Fecal matter
-presence of algae
-presence of bacteria or fecal chloroform
-no measurable presence of disinfectant
What do you do when fecal matter is introduced to the pool?
It is to be drained and disinfected
Pool: Free chlorine min/Max
Minimum: 1 ppm maximum: 10 ppm
Pool: PH Minimum and Maximum
Minimum: 7.2
Maximum: 7.8
Wading pool/spa: free chlorine min/max
Minimum: 2 ppm
Max: 10 ppm
Wading pool/spa pH min/max
Minimum: 7.2
Max: 7.8
What are the residential pool fencing requirements?
4 foot minimum height fence completely enclosing the swimming pool area, with no more than 4 inch
gaps between bars of the fence. No more than a 4 inch space between the fence and the ground.
Must be self closing and self latching.
