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WV Septic Installer – Complete Practice Test (2026 | 2027) Questions
and Answers with Detailed Rationales | Updates | 100% Correct
Domain 1: West Virginia State Regulations & Codes
1. In West Virginia, which state agency is primarily responsible for the regulation
and permitting of onsite sewage disposal systems?
A) West Virginia Department of Environmental Protection (WVDEP)
B) West Virginia Bureau for Public Health (WVDHHR) – often through local county
health departments
C) West Virginia Division of Natural Resources (WVDNR)
D) West Virginia Department of Agriculture
Answer: B
Rationale: The West Virginia Bureau for Public Health (WVDHHR) has the primary
regulatory authority over onsite sewage disposal systems. In many counties, the
local county health department administers these regulations, including
permitting, site evaluations, and inspections.
2. A homeowner in West Virginia wants to install a new septic system. What is
the first step they must take?
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A) Purchase the septic tank and drainfield materials.
B) Hire a contractor to begin excavation.
C) Obtain a permit from the local county health department or WVDHHR-
designated authority.
D) Conduct a soil test on their own property.
Answer: C
Rationale: Under WV law, no person may construct, alter, or repair an onsite
sewage system without first obtaining a permit from the local county health
department or the WVDHHR-designated authority. Permitting ensures the system
meets all state and local codes.
3. According to WV regulations, which of the following is a standard setback
requirement for a septic tank from a private well?
A) 25 feet
B) 50 feet
C) 75 feet
D) 100 feet
Answer: B
Rationale: West Virginia regulations typically require a minimum horizontal
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setback of 50 feet from a septic tank to a private well or water supply. The setback
distance may increase depending on soil type, system type, and local ordinances.
The drainfield setback is often 100 feet.
4. The West Virginia State Code establishes that a person who installs, repairs, or
maintains a septic system must hold a valid:
A) Contractor's license from the WVDEP.
B) Certificate of Registration from the local county health department.
C) Onsite Wastewater System Installer certification.
D) Plumbing license from the WV Division of Labor.
Answer: C
Rationale: West Virginia law requires that any individual who installs, repairs, or
maintains an onsite sewage system must hold a valid Onsite Wastewater System
Installer certification issued by the county health department or the WVDHHR-
designated authority.
5. A septic system is classified as a "conventional" system. What is the primary
requirement for this classification?
A) It requires a pump and pressure distribution.
B) It relies on gravity flow and a standard drainfield.
WV Septic Installer – Complete Practice Test (2026 | 2027) Questions
and Answers with Detailed Rationales | Updates | 100% Correct
Domain 1: West Virginia State Regulations & Codes
1. In West Virginia, which state agency is primarily responsible for the regulation
and permitting of onsite sewage disposal systems?
A) West Virginia Department of Environmental Protection (WVDEP)
B) West Virginia Bureau for Public Health (WVDHHR) – often through local county
health departments
C) West Virginia Division of Natural Resources (WVDNR)
D) West Virginia Department of Agriculture
Answer: B
Rationale: The West Virginia Bureau for Public Health (WVDHHR) has the primary
regulatory authority over onsite sewage disposal systems. In many counties, the
local county health department administers these regulations, including
permitting, site evaluations, and inspections.
2. A homeowner in West Virginia wants to install a new septic system. What is
the first step they must take?
, Page |2
A) Purchase the septic tank and drainfield materials.
B) Hire a contractor to begin excavation.
C) Obtain a permit from the local county health department or WVDHHR-
designated authority.
D) Conduct a soil test on their own property.
Answer: C
Rationale: Under WV law, no person may construct, alter, or repair an onsite
sewage system without first obtaining a permit from the local county health
department or the WVDHHR-designated authority. Permitting ensures the system
meets all state and local codes.
3. According to WV regulations, which of the following is a standard setback
requirement for a septic tank from a private well?
A) 25 feet
B) 50 feet
C) 75 feet
D) 100 feet
Answer: B
Rationale: West Virginia regulations typically require a minimum horizontal
, Page |3
setback of 50 feet from a septic tank to a private well or water supply. The setback
distance may increase depending on soil type, system type, and local ordinances.
The drainfield setback is often 100 feet.
4. The West Virginia State Code establishes that a person who installs, repairs, or
maintains a septic system must hold a valid:
A) Contractor's license from the WVDEP.
B) Certificate of Registration from the local county health department.
C) Onsite Wastewater System Installer certification.
D) Plumbing license from the WV Division of Labor.
Answer: C
Rationale: West Virginia law requires that any individual who installs, repairs, or
maintains an onsite sewage system must hold a valid Onsite Wastewater System
Installer certification issued by the county health department or the WVDHHR-
designated authority.
5. A septic system is classified as a "conventional" system. What is the primary
requirement for this classification?
A) It requires a pump and pressure distribution.
B) It relies on gravity flow and a standard drainfield.
