FLORIDA SEPTIC TANK CONTRACTOR PRACTICE
EXAM Questions And Correct Answers (Verified
Answers) Plus Rationales 2026 Q&A | Instant
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1. The primary authority regulating septic systems in Florida is:
A. EPA
B. Florida Department of Health
C. DEP only
D. OSHA
✅ Answer: B
Rationale: The Florida Department of Health (DOH) regulates Onsite
Sewage Treatment and Disposal Systems (OSTDS).
2. Florida septic system rules are found in:
A. Chapter 468, F.S.
B. Chapter 381, F.S. & Chapter 64E-6, F.A.C.
C. Chapter 489, F.S.
D. NEC
✅ Answer: B
Rationale: Chapter 381, Florida Statutes and 64E-6, Florida
Administrative Code govern septic systems.
3. A licensed septic contractor may:
,A. Approve permits
B. Install and repair septic systems
C. Perform DOH inspections
D. Ignore setbacks
✅ Answer: B
Rationale: Licensed contractors are authorized to install, modify, and
repair systems—not approve permits.
4. A permit is required before:
A. Pumping tanks
B. Installing or repairing a septic system
C. Inspecting soil
D. Measuring setbacks
✅ Answer: B
Rationale: Installation and repairs require DOH permits before work
begins.
5. Septic permits are issued by:
A. County building department
B. Licensed contractor
C. County Health Department (DOH)
D. DEP
✅ Answer: C
Rationale: County Health Departments act on behalf of the Florida
DOH.
,6. Percolation tests determine:
A. Tank size
B. Soil absorption capacity
C. Pipe size
D. Pump selection
✅ Answer: B
Rationale: Perc tests measure how quickly soil absorbs wastewater.
7. Very fast percolation indicates:
A. Clay soil
B. Poor drainage
C. Sandy soil with limited treatment
D. High organic matter
✅ Answer: C
Rationale: Fast-draining sands allow wastewater to pass too quickly for
proper treatment.
8. Seasonal high water table is identified by:
A. Surface puddles
B. Soil mottling
C. Rain charts
D. Pipe depth
✅ Answer: B
Rationale: Gray or reddish mottling in soil indicates periodic
saturation.
, 9. Minimum vertical separation from drainfield bottom to water
table is typically:
A. 6 inches
B. 12 inches
C. 24 inches
D. 48 inches
✅ Answer: C
Rationale: Florida generally requires 24 inches of separation for proper
treatment.
10. The least suitable soil for drainfields is:
A. Sandy loam
B. Fine sand
C. Clay
D. Loamy sand
✅ Answer: C
Rationale: Clay drains poorly and prevents adequate effluent
absorption.
QUESTIONS 11–30: System Components & Installation
11. The main purpose of a septic tank is to:
A. Disinfect wastewater
B. Separate solids and liquids
C. Filter nutrients
D. Evaporate water
EXAM Questions And Correct Answers (Verified
Answers) Plus Rationales 2026 Q&A | Instant
Download Pdf
1. The primary authority regulating septic systems in Florida is:
A. EPA
B. Florida Department of Health
C. DEP only
D. OSHA
✅ Answer: B
Rationale: The Florida Department of Health (DOH) regulates Onsite
Sewage Treatment and Disposal Systems (OSTDS).
2. Florida septic system rules are found in:
A. Chapter 468, F.S.
B. Chapter 381, F.S. & Chapter 64E-6, F.A.C.
C. Chapter 489, F.S.
D. NEC
✅ Answer: B
Rationale: Chapter 381, Florida Statutes and 64E-6, Florida
Administrative Code govern septic systems.
3. A licensed septic contractor may:
,A. Approve permits
B. Install and repair septic systems
C. Perform DOH inspections
D. Ignore setbacks
✅ Answer: B
Rationale: Licensed contractors are authorized to install, modify, and
repair systems—not approve permits.
4. A permit is required before:
A. Pumping tanks
B. Installing or repairing a septic system
C. Inspecting soil
D. Measuring setbacks
✅ Answer: B
Rationale: Installation and repairs require DOH permits before work
begins.
5. Septic permits are issued by:
A. County building department
B. Licensed contractor
C. County Health Department (DOH)
D. DEP
✅ Answer: C
Rationale: County Health Departments act on behalf of the Florida
DOH.
,6. Percolation tests determine:
A. Tank size
B. Soil absorption capacity
C. Pipe size
D. Pump selection
✅ Answer: B
Rationale: Perc tests measure how quickly soil absorbs wastewater.
7. Very fast percolation indicates:
A. Clay soil
B. Poor drainage
C. Sandy soil with limited treatment
D. High organic matter
✅ Answer: C
Rationale: Fast-draining sands allow wastewater to pass too quickly for
proper treatment.
8. Seasonal high water table is identified by:
A. Surface puddles
B. Soil mottling
C. Rain charts
D. Pipe depth
✅ Answer: B
Rationale: Gray or reddish mottling in soil indicates periodic
saturation.
, 9. Minimum vertical separation from drainfield bottom to water
table is typically:
A. 6 inches
B. 12 inches
C. 24 inches
D. 48 inches
✅ Answer: C
Rationale: Florida generally requires 24 inches of separation for proper
treatment.
10. The least suitable soil for drainfields is:
A. Sandy loam
B. Fine sand
C. Clay
D. Loamy sand
✅ Answer: C
Rationale: Clay drains poorly and prevents adequate effluent
absorption.
QUESTIONS 11–30: System Components & Installation
11. The main purpose of a septic tank is to:
A. Disinfect wastewater
B. Separate solids and liquids
C. Filter nutrients
D. Evaporate water
