North Carolina NC Septic Installer Exam Key Concepts Complete Study Guide with Verified Answers 2026

NC Septic Installer Exam Key Concepts
Study online at https://quizlet.com/_gw63ln

1. Setback for Well (serving one 50 Feet
family)

2. Setback from Property Line 10 Feet

3. Setback from Lake/Pond in- 50 Feet
cluding Streams

4. Setback from Water Line 10 Feet

5. Setback from Foundation or 5 Feet
Deck

6. Setback from Basement/Cel- 15 Feet
lar

7. Setback from In-Ground Pool 15 Feet

8. Setback from Above-Ground 5 Feet
Pool

9. Setback from Buried Storage 10 Feet
Tank

10. Permitting Process 1) Application
2) Improvement Permit (IP)
3) Construction Authorization (CA)
4 Operation Permit (OP)

11. Septic Tank 1) Structurally Sound
2) Watertight
3) Covered Receptacle

12. Septic Tank Size

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, NC Septic Installer Exam Key Concepts
Study online at https://quizlet.com/_gw63ln

4 Bedroom or less = 1,000 Gallon
5 Bedroom = 1,250 Gallon

13. Septic Tank Inlet must be 2 inches
_______ inches about outlet

14. Pump Tank Size Equal to or greater than Septic Tank

15. Effluent Filter 1) On outlet end of septic tank
2) Shall extend 25 - 50% into liquid depth
3) Solvent welded to 3" pipe

16. When must a tank be traffic Greater than 3 Feet in Ground
rated

17. Tank Strength Requirement 1) 4,000 psi at 28 days
2) 3,500 psi before leaving yard

18. D-Box 1) Watertight and sound Contruction
2) 2 feet from septic tank, 2 feet from drain field
3) Pipe from Septic Tank to D-box is level for first 2 feet

19. Control Panel Box NEMA 4x

20. Control Panel Requirements 1) HOA Switch
2) Event Counter
3) Run Light
4) Overload Protection

5) Motor Contractor or Solid-State Relay
6) Elapsed Time Meter
7) Circuit Breakers

21. Control Panel Mount 24" above finished grade to bottom of panel
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