SOUTH CAROLINA SEPTIC TANK CONTRACTOR
RECOMMENDED ACTUAL EXAM 2026 – 200 QUESTIONS
WITH ANSWERS & EXPLANATIONS | INSTANT PDF
DOWNLOAD
Introduction
This comprehensive practice exam is designed to prepare aspiring South Carolina Septic Tank
Contractors for the state licensing exam. It contains 200 multiple-choice questions covering all
key areas, including:
State regulations, licensing, and permitting
Septic system components and operation
Drainfields and distribution systems
Installation and construction best practices
Maint.enance, troubleshooting, and problem-solving
Environmental and safety considerations
Math, measurements, and system design calculations
Each question includes the correct answer in bold and an italicized explanation to reinforce
understanding and provide insight into practical applications.
Use this exam to assess your knowledge, identify areas for further study, and gain confidence
before taking the South Carolina Septic Tank Contractor licensing exam
Section 1: State Regulations & Licensing
Q1: Which state agency regulates septic system contractors in South Carolina?
A) EPA
B) DHEC
C) OSHA
D) SC Department of Labor
Explanation: : DHEC (Department of Health and Environmental Control) oversees
all septic system regulations in SC.
Q2: What is the minimum requirement for a septic contractor license in SC?
A) High school diploma only
B) College degree in engineering
,C) Passing the SC Septic Tank Contractor Exam
D) 2 years of plumbing experience
Explanation: : SC requires passing the state exam to ensure knowledge of proper
system installation and maintenance.
Q3: How often must a South Carolina septic contractor license be renewed?
A) Every year
B) Every 2 years
C) Every 3 years
D) Every 5 years
Explanation: : SC law mandates license renewal every 3 years to ensure continuing
compliance with regulations.
Q4: Who is legally responsible for proper installation of a septic system?
A) Property owner
B) Licensed contractor
C) DHEC inspector
D) Plumbing supplier
Explanation: : The licensed contractor is responsible for following codes and
ensuring proper installation.
Q5: Which of the following is required to report to DHEC?
A) Pumping septic tanks
B) Minor pipe repairs
C) Installation of new septic systems
D) Cleaning gutters
Explanation: : DHEC must approve and be notified of new system installations to
maintain regulatory oversight.
Q6: Setback requirements in SC refer to:
A) Distance between tanks and property line
B) Minimum distance from water sources and buildings
C) Length of drain lines
D) Pump spacing
Explanation: : Setbacks ensure septic systems do not contaminate water or
interfere with structures.
,Q7: A contractor performing septic work without a license may face:
A) Verbal warning
B) Fines and legal action
C) Free training
D) Temporary permit
Explanation: : Unlicensed work is illegal and carries penalties in SC.
Q8: The DHEC septic permit is required:
A) Only for repairs
B) For all new system installations
C) For pumping only
D) Only for commercial systems
Explanation: : New systems require a DHEC permit to ensure compliance with
regulations.
Q9: Which of the following is a violation of SC septic law?
A) Installing according to approved plans
B) Altering a system without DHEC approval
C) Maintaining records of system pumping
D) Following soil evaluation guidelines
Explanation: : Unauthorized changes to approved designs are illegal.
Q10: Which document must a contractor maintain for each system installed?
A) Warranty card
B) Purchase receipt
C) Installation record and permit
D) Tax record
Explanation: : DHEC requires contractors to keep installation records for
inspections and accountability.
Q11: Who can inspect a newly installed septic system in SC?
A) Any plumber
B) DHEC inspector
C) Homeowner
D) Insurance agent
Explanation: : DHEC personnel conduct inspections to verify compliance with state
codes.
, Q12: Which of these systems requires a special permit in SC?
A) Conventional septic system
B) Alternative or aerobic systems
C) Gravel trenches
D) Simple leach field
Explanation: : Non-standard systems have higher environmental impact and
require additional review.
Q13: SC septic laws are primarily designed to:
A) Reduce construction costs
B) Protect public health and the environment
C) Increase contractor profits
D) Promote real estate development
Explanation: : Proper regulation prevents contamination of water and soil.
Q14: Which of the following is NOT part of licensing requirements?
A) Exam
B) Application fee
C) Insurance
D) College degree
Explanation: : SC does not require a college degree for licensing.
Q15: A licensed contractor must notify DHEC of system failures:
A) Within 24 hours
B) Within 5 business days
C) Only at renewal
D) No notification needed
Explanation: : Timely reporting ensures public safety and corrective measures.
Q16: Which SC code defines septic system standards?
A) OSHA Code 101
B) SC DHEC Onsite Wastewater Regulations
C) EPA Water Code
D) Plumbing Code 2020
Explanation: : SC DHEC regulates design, installation, and maintenance standards.
Q17: Can a contractor subcontract septic work without a license?
A) Yes, always
RECOMMENDED ACTUAL EXAM 2026 – 200 QUESTIONS
WITH ANSWERS & EXPLANATIONS | INSTANT PDF
DOWNLOAD
Introduction
This comprehensive practice exam is designed to prepare aspiring South Carolina Septic Tank
Contractors for the state licensing exam. It contains 200 multiple-choice questions covering all
key areas, including:
State regulations, licensing, and permitting
Septic system components and operation
Drainfields and distribution systems
Installation and construction best practices
Maint.enance, troubleshooting, and problem-solving
Environmental and safety considerations
Math, measurements, and system design calculations
Each question includes the correct answer in bold and an italicized explanation to reinforce
understanding and provide insight into practical applications.
Use this exam to assess your knowledge, identify areas for further study, and gain confidence
before taking the South Carolina Septic Tank Contractor licensing exam
Section 1: State Regulations & Licensing
Q1: Which state agency regulates septic system contractors in South Carolina?
A) EPA
B) DHEC
C) OSHA
D) SC Department of Labor
Explanation: : DHEC (Department of Health and Environmental Control) oversees
all septic system regulations in SC.
Q2: What is the minimum requirement for a septic contractor license in SC?
A) High school diploma only
B) College degree in engineering
,C) Passing the SC Septic Tank Contractor Exam
D) 2 years of plumbing experience
Explanation: : SC requires passing the state exam to ensure knowledge of proper
system installation and maintenance.
Q3: How often must a South Carolina septic contractor license be renewed?
A) Every year
B) Every 2 years
C) Every 3 years
D) Every 5 years
Explanation: : SC law mandates license renewal every 3 years to ensure continuing
compliance with regulations.
Q4: Who is legally responsible for proper installation of a septic system?
A) Property owner
B) Licensed contractor
C) DHEC inspector
D) Plumbing supplier
Explanation: : The licensed contractor is responsible for following codes and
ensuring proper installation.
Q5: Which of the following is required to report to DHEC?
A) Pumping septic tanks
B) Minor pipe repairs
C) Installation of new septic systems
D) Cleaning gutters
Explanation: : DHEC must approve and be notified of new system installations to
maintain regulatory oversight.
Q6: Setback requirements in SC refer to:
A) Distance between tanks and property line
B) Minimum distance from water sources and buildings
C) Length of drain lines
D) Pump spacing
Explanation: : Setbacks ensure septic systems do not contaminate water or
interfere with structures.
,Q7: A contractor performing septic work without a license may face:
A) Verbal warning
B) Fines and legal action
C) Free training
D) Temporary permit
Explanation: : Unlicensed work is illegal and carries penalties in SC.
Q8: The DHEC septic permit is required:
A) Only for repairs
B) For all new system installations
C) For pumping only
D) Only for commercial systems
Explanation: : New systems require a DHEC permit to ensure compliance with
regulations.
Q9: Which of the following is a violation of SC septic law?
A) Installing according to approved plans
B) Altering a system without DHEC approval
C) Maintaining records of system pumping
D) Following soil evaluation guidelines
Explanation: : Unauthorized changes to approved designs are illegal.
Q10: Which document must a contractor maintain for each system installed?
A) Warranty card
B) Purchase receipt
C) Installation record and permit
D) Tax record
Explanation: : DHEC requires contractors to keep installation records for
inspections and accountability.
Q11: Who can inspect a newly installed septic system in SC?
A) Any plumber
B) DHEC inspector
C) Homeowner
D) Insurance agent
Explanation: : DHEC personnel conduct inspections to verify compliance with state
codes.
, Q12: Which of these systems requires a special permit in SC?
A) Conventional septic system
B) Alternative or aerobic systems
C) Gravel trenches
D) Simple leach field
Explanation: : Non-standard systems have higher environmental impact and
require additional review.
Q13: SC septic laws are primarily designed to:
A) Reduce construction costs
B) Protect public health and the environment
C) Increase contractor profits
D) Promote real estate development
Explanation: : Proper regulation prevents contamination of water and soil.
Q14: Which of the following is NOT part of licensing requirements?
A) Exam
B) Application fee
C) Insurance
D) College degree
Explanation: : SC does not require a college degree for licensing.
Q15: A licensed contractor must notify DHEC of system failures:
A) Within 24 hours
B) Within 5 business days
C) Only at renewal
D) No notification needed
Explanation: : Timely reporting ensures public safety and corrective measures.
Q16: Which SC code defines septic system standards?
A) OSHA Code 101
B) SC DHEC Onsite Wastewater Regulations
C) EPA Water Code
D) Plumbing Code 2020
Explanation: : SC DHEC regulates design, installation, and maintenance standards.
Q17: Can a contractor subcontract septic work without a license?
A) Yes, always
