FLORIDA WASTEWATER PRACTICE FINAL
STUDY GUIDE 2026 QUESTIONS WITH
SOLUTIONS GRADED A+
⩥ FDEP chapter 62-604.550 (a) FAC, requires a wastewater spill shall
be verbally reported to the state warning point no later than:
Answer: 24hrs from discovery
⩥ What is the 'rule of thumb' regarding pump packing?
Answer: Never put rings of new packing over the old packing
⩥ According to FDEP chapter 62-60, FAC, a composite sample shall be
used for which test?
Answer: Effluent CBOD
⩥ Chlorine residual can be measured in several ways, including the use
of DPD reagent, spectrophotometers and iodometric titration. Which of
the following is also an approved method?
Answer: Amperometric Titration
⩥ Chapter 62-601, Domestic wastewater treatment plant monitoring,
states that on-site tests for total residual chlorine, pH, and _______ can
be performed under the direction of a certified operator:
,Answer: Dissolved Oxygen(DO)
⩥ Starting this type of pump against a closed valve can cause major
damage to the pump, pump piping, the operator, or all three
Answer: Positive displacement pump
⩥ These types of samples may be used for CBOD5 and nutrients at
flows less than 100,000 GPD, according to chapter 62-601
Answer: Grab samples
⩥ According to FDEP chapter 62-602, drinking water and wastewater
treatment plant operators, duties of operators includes reporting to the
permittee and the department, as soon as possible, but within 24hrs:
Answer: Any major interruption of service
⩥ What could cause a centrifugal above ground pump to be noisy while
running
Answer: Debris caught in the impeller housing
⩥ According to FDEP chapter 62-601 FAC, Domestic wastewater
treatment plant monitoring, discharge monitoring reports (DMRs) for the
previous month must be submitted to the department by the
____________ day of the current month?
Answer: 28th day
,⩥ FDEP chapter 62-600 FC, domestic wastewater facilities, states that
all treatment plants shall be____________
Answer: Fenced
⩥ As the operator of a primary clarifier, you notice a black and odorous
septic wastewater leaving the clarifier. What is the probable cause?
Answer: Improper sludge removal
⩥ A fire has started in the maintenance shop due to an ignition of
petroleum oil. Which type of fire extinguisher should NOT be used to
fight the fire?
Answer: Pressurized water
⩥ Chlorine gas is how many times heavier than air
Answer: 2.5
⩥ The combination of methane and ____________ can be very
combustible
Answer: Oxygen
⩥ Plant effluent coliform count fails to meet the required standards for
disinfection. Chlorine residual is normal. Disinfectant supplies ARE
NOT a problem. What is the probable cause?
, Answer: Contact time too short
⩥ A fixed sample is:
Answer: A sample purposely spiked by the lab technician for QA/QC
⩥ According to FDEP chapter 62-602 FAC, an operator could have his
license permanently revoked for:
Answer: Falsified or misrepresented reports, logs, or lab sheets
⩥ What process do the bacteria perform in the stabilization(re-aeration)
tank in the contact stabilization process?
Answer: Absorption and digestion of the waste material they collected
⩥ A screenings dumpster at the head works of the treatment plant is full
at the end of the day. The dumpster is 6ft tall, 10ft long, and 8ft wide.
How many cubic yards of screenings must be disposed of in a 30 day
month?
Answer: 533 (6 x 10 x 8 = 480) (480 /27 = 17.7) (17.7 x 30 = 533)
⩥ When properly adjusted, the rope packing on a centrifugal pump is
designed to leak how much?
Answer: One drip per second
STUDY GUIDE 2026 QUESTIONS WITH
SOLUTIONS GRADED A+
⩥ FDEP chapter 62-604.550 (a) FAC, requires a wastewater spill shall
be verbally reported to the state warning point no later than:
Answer: 24hrs from discovery
⩥ What is the 'rule of thumb' regarding pump packing?
Answer: Never put rings of new packing over the old packing
⩥ According to FDEP chapter 62-60, FAC, a composite sample shall be
used for which test?
Answer: Effluent CBOD
⩥ Chlorine residual can be measured in several ways, including the use
of DPD reagent, spectrophotometers and iodometric titration. Which of
the following is also an approved method?
Answer: Amperometric Titration
⩥ Chapter 62-601, Domestic wastewater treatment plant monitoring,
states that on-site tests for total residual chlorine, pH, and _______ can
be performed under the direction of a certified operator:
,Answer: Dissolved Oxygen(DO)
⩥ Starting this type of pump against a closed valve can cause major
damage to the pump, pump piping, the operator, or all three
Answer: Positive displacement pump
⩥ These types of samples may be used for CBOD5 and nutrients at
flows less than 100,000 GPD, according to chapter 62-601
Answer: Grab samples
⩥ According to FDEP chapter 62-602, drinking water and wastewater
treatment plant operators, duties of operators includes reporting to the
permittee and the department, as soon as possible, but within 24hrs:
Answer: Any major interruption of service
⩥ What could cause a centrifugal above ground pump to be noisy while
running
Answer: Debris caught in the impeller housing
⩥ According to FDEP chapter 62-601 FAC, Domestic wastewater
treatment plant monitoring, discharge monitoring reports (DMRs) for the
previous month must be submitted to the department by the
____________ day of the current month?
Answer: 28th day
,⩥ FDEP chapter 62-600 FC, domestic wastewater facilities, states that
all treatment plants shall be____________
Answer: Fenced
⩥ As the operator of a primary clarifier, you notice a black and odorous
septic wastewater leaving the clarifier. What is the probable cause?
Answer: Improper sludge removal
⩥ A fire has started in the maintenance shop due to an ignition of
petroleum oil. Which type of fire extinguisher should NOT be used to
fight the fire?
Answer: Pressurized water
⩥ Chlorine gas is how many times heavier than air
Answer: 2.5
⩥ The combination of methane and ____________ can be very
combustible
Answer: Oxygen
⩥ Plant effluent coliform count fails to meet the required standards for
disinfection. Chlorine residual is normal. Disinfectant supplies ARE
NOT a problem. What is the probable cause?
, Answer: Contact time too short
⩥ A fixed sample is:
Answer: A sample purposely spiked by the lab technician for QA/QC
⩥ According to FDEP chapter 62-602 FAC, an operator could have his
license permanently revoked for:
Answer: Falsified or misrepresented reports, logs, or lab sheets
⩥ What process do the bacteria perform in the stabilization(re-aeration)
tank in the contact stabilization process?
Answer: Absorption and digestion of the waste material they collected
⩥ A screenings dumpster at the head works of the treatment plant is full
at the end of the day. The dumpster is 6ft tall, 10ft long, and 8ft wide.
How many cubic yards of screenings must be disposed of in a 30 day
month?
Answer: 533 (6 x 10 x 8 = 480) (480 /27 = 17.7) (17.7 x 30 = 533)
⩥ When properly adjusted, the rope packing on a centrifugal pump is
designed to leak how much?
Answer: One drip per second
