South Carolina Septic Tank Installer License
Exam| 250 Practice Questions & Answers
Latest Update This Year. Pdf
Prepare for the South Carolina Septic Tank Installer License Exam with original practice
questions, answers, and rationales designed around South Carolina onsite wastewater
requirements and Regulation 61-56.
Coverage
Covers SCDES installer licensing and permit requirements, Tier 1–3 installer scopes, soil
evaluation and LTAR, site suitability and setbacks, septic tank sizing, drainfield construction,
aggregate and piping, gravity and pump systems, force mains, grease traps, alternative and
specialized systems, inspections, documentation, maintenance, troubleshooting, safety,
calculations, and compliance procedures.
Questions 1–25: Licensing, Regulation & Permitting
Q1.
Which South Carolina agency currently administers the onsite wastewater installer licensing
program?
A. South Carolina Department of Agriculture
B. South Carolina Department of Transportation
C. South Carolina Department of Environmental Services (SCDES)
D. South Carolina Building Commission
,Answer: C
Rationale: SCDES administers South Carolina's onsite wastewater regulatory and licensing
program.
Q2.
What minimum score is required to pass the South Carolina septic installer licensing
examination?
A. 70%
B. 75%
C. 80%
D. 85%
Answer: C
Rationale: SCDES requires a minimum examination score of 80% for installer licensure.
Q3.
Which regulation is the primary regulatory basis for the South Carolina onsite wastewater
installer examination?
A. Regulation 61-62
B. Regulation 61-67
,C. Regulation 61-68
D. Regulation 61-56
Answer: D
Rationale: The installer examination tests knowledge and comprehension of Regulation 61-
56.
Q4.
Which installer tier is authorized to install all gravity-fed residential onsite wastewater
systems?
A. Tier 1
B. Tier 2
C. Tier 3
D. Pumper/Hauler
Answer: A
Rationale: Tier 1 installers may install gravity-fed residential onsite wastewater systems.
Q5.
Which activity is outside the normal scope of a Tier 1 installer?
A. Installing a gravity residential system
B. Installing a residential septic tank
, C. Installing a gravity infiltration field
D. Repairing an existing onsite wastewater system
Answer: D
Rationale: Tier 1 is not authorized to conduct repairs on existing systems.
Q6.
Which additional work is specifically included within Tier 2 authorization?
A. Only conventional residential systems
B. Only septic tank cleaning
C. Systems involving pumps and grease traps
D. Only Standard 610 systems
Answer: C
Rationale: Tier 2 includes Tier 1 systems plus pumps, grease traps, curtain drains, elevated
infiltration systems, mounded systems, and specified commercial and community systems.
Q7.
What specialized systems are added to the scope of a Tier 3 installer?
A. Only gravity systems
B. Standard 610 specialized onsite wastewater systems
Exam| 250 Practice Questions & Answers
Latest Update This Year. Pdf
Prepare for the South Carolina Septic Tank Installer License Exam with original practice
questions, answers, and rationales designed around South Carolina onsite wastewater
requirements and Regulation 61-56.
Coverage
Covers SCDES installer licensing and permit requirements, Tier 1–3 installer scopes, soil
evaluation and LTAR, site suitability and setbacks, septic tank sizing, drainfield construction,
aggregate and piping, gravity and pump systems, force mains, grease traps, alternative and
specialized systems, inspections, documentation, maintenance, troubleshooting, safety,
calculations, and compliance procedures.
Questions 1–25: Licensing, Regulation & Permitting
Q1.
Which South Carolina agency currently administers the onsite wastewater installer licensing
program?
A. South Carolina Department of Agriculture
B. South Carolina Department of Transportation
C. South Carolina Department of Environmental Services (SCDES)
D. South Carolina Building Commission
,Answer: C
Rationale: SCDES administers South Carolina's onsite wastewater regulatory and licensing
program.
Q2.
What minimum score is required to pass the South Carolina septic installer licensing
examination?
A. 70%
B. 75%
C. 80%
D. 85%
Answer: C
Rationale: SCDES requires a minimum examination score of 80% for installer licensure.
Q3.
Which regulation is the primary regulatory basis for the South Carolina onsite wastewater
installer examination?
A. Regulation 61-62
B. Regulation 61-67
,C. Regulation 61-68
D. Regulation 61-56
Answer: D
Rationale: The installer examination tests knowledge and comprehension of Regulation 61-
56.
Q4.
Which installer tier is authorized to install all gravity-fed residential onsite wastewater
systems?
A. Tier 1
B. Tier 2
C. Tier 3
D. Pumper/Hauler
Answer: A
Rationale: Tier 1 installers may install gravity-fed residential onsite wastewater systems.
Q5.
Which activity is outside the normal scope of a Tier 1 installer?
A. Installing a gravity residential system
B. Installing a residential septic tank
, C. Installing a gravity infiltration field
D. Repairing an existing onsite wastewater system
Answer: D
Rationale: Tier 1 is not authorized to conduct repairs on existing systems.
Q6.
Which additional work is specifically included within Tier 2 authorization?
A. Only conventional residential systems
B. Only septic tank cleaning
C. Systems involving pumps and grease traps
D. Only Standard 610 systems
Answer: C
Rationale: Tier 2 includes Tier 1 systems plus pumps, grease traps, curtain drains, elevated
infiltration systems, mounded systems, and specified commercial and community systems.
Q7.
What specialized systems are added to the scope of a Tier 3 installer?
A. Only gravity systems
B. Standard 610 specialized onsite wastewater systems
