WEST VIRGINIA (WV) SEPTIC
INSTALLER EXAMINATION COMPLETE
QUESTIONS AND VERIFIED SOLUTIONS
LATEST UPDATE THIS YEAR
✅ Actual Exam Coverage (Complete Content Areas)
1. WV Septic System Regulations & Codes
• Sewage Systems Regulations (e.g., 64CSR9/47)
• Permitting requirements & timelines
• Certification rules & categories
• Passing score & retest policy
• Certification validity/renewals & violations
2. Installer Certification Requirements
• Eligibility (age, experience)
• Class I scope (standard soil absorption systems, beds,
holding tanks, greywater systems)
• Prohibitions (e.g., mound systems for Class I)
• Renewal, expiration, revocation standards
3. Site Evaluation & Soil Tests
• Perc test methods and rates
• Soil profile & groundwater/limiting layer evaluation
• Slope limitations and soil suitability parameters
,4. Septic Tank Design & Specifications
• Minimum tank sizes & bedroom flow additions
• Materials & construction standards
• Compartment ratios & baffle locations
• Access and clearance requirements
5. Absorption Field & Distribution System Design
• Trench dimensions (depth, width)
• Gravel placement standards
• Distribution system types (serial, parallel)
• Square foot requirements per bedroom based on perc
rates
6. Setbacks & Separation Distances
• Clearances to wells, water bodies, structures,
property lines
• Soil absorption field isolation rules
7. Installation, System Components & Safety
• D-boxes, effluent filters, pump systems
• Venting and clean-out requirements
• Prohibited connections (foundation/roof drains)
8. Permitting, Approval & Compliance
• Permit application contents
• Director approval timelines
• Non-transferability of permits
• Abandonment procedures for old systems
,📌 Short Point Form Coverage (High-Yield)
Regulations & Codes: 64CSR9/47, permit process,
timelines
Certification Rules: Passing score, validity period,
retest policy
Site Work: Perc test, soil conditions, slopes
Tank Design: Size per bedrooms, materials,
compartments, baffles
Absorption System: Trench sizing, gravel placement,
distribution pattern
Setbacks: Wells, water bodies, buildings, property
lines
Installation Practices: Distribution boxes, effluent
components
Permitting/Compliance: Applications, approvals,
abandonment
1. A permit for a standard soil absorption system must be
approved or denied within how many working days
after submission in WV?
A) 10 days
, B) 21 days
C) 30 days
D) 45 days
Answer: B
Rationale: WV regulation requires a timeline for
permit decisions; individual systems get a 21
working-day review.
2. During site evaluation in WV, what must be
determined before designing an absorption field?
A) Property tax status
B) Perc rate and limiting soil depth
C) Paint color of house
D) Age of nearest well
Answer: B
Rationale: Perc tests and soil conditions determine
suitability and absorption system design.
3. A WV septic tank must have its inlet invert how much
compared to the outlet to ensure proper flow?
A) Same level
B) 1 inch lower
C) 2 inches higher
D) 6 inches lower
Answer: C
Rationale: Inverts are positioned to promote flow to
outlet; inlet is higher at least 2 inches.
INSTALLER EXAMINATION COMPLETE
QUESTIONS AND VERIFIED SOLUTIONS
LATEST UPDATE THIS YEAR
✅ Actual Exam Coverage (Complete Content Areas)
1. WV Septic System Regulations & Codes
• Sewage Systems Regulations (e.g., 64CSR9/47)
• Permitting requirements & timelines
• Certification rules & categories
• Passing score & retest policy
• Certification validity/renewals & violations
2. Installer Certification Requirements
• Eligibility (age, experience)
• Class I scope (standard soil absorption systems, beds,
holding tanks, greywater systems)
• Prohibitions (e.g., mound systems for Class I)
• Renewal, expiration, revocation standards
3. Site Evaluation & Soil Tests
• Perc test methods and rates
• Soil profile & groundwater/limiting layer evaluation
• Slope limitations and soil suitability parameters
,4. Septic Tank Design & Specifications
• Minimum tank sizes & bedroom flow additions
• Materials & construction standards
• Compartment ratios & baffle locations
• Access and clearance requirements
5. Absorption Field & Distribution System Design
• Trench dimensions (depth, width)
• Gravel placement standards
• Distribution system types (serial, parallel)
• Square foot requirements per bedroom based on perc
rates
6. Setbacks & Separation Distances
• Clearances to wells, water bodies, structures,
property lines
• Soil absorption field isolation rules
7. Installation, System Components & Safety
• D-boxes, effluent filters, pump systems
• Venting and clean-out requirements
• Prohibited connections (foundation/roof drains)
8. Permitting, Approval & Compliance
• Permit application contents
• Director approval timelines
• Non-transferability of permits
• Abandonment procedures for old systems
,📌 Short Point Form Coverage (High-Yield)
Regulations & Codes: 64CSR9/47, permit process,
timelines
Certification Rules: Passing score, validity period,
retest policy
Site Work: Perc test, soil conditions, slopes
Tank Design: Size per bedrooms, materials,
compartments, baffles
Absorption System: Trench sizing, gravel placement,
distribution pattern
Setbacks: Wells, water bodies, buildings, property
lines
Installation Practices: Distribution boxes, effluent
components
Permitting/Compliance: Applications, approvals,
abandonment
1. A permit for a standard soil absorption system must be
approved or denied within how many working days
after submission in WV?
A) 10 days
, B) 21 days
C) 30 days
D) 45 days
Answer: B
Rationale: WV regulation requires a timeline for
permit decisions; individual systems get a 21
working-day review.
2. During site evaluation in WV, what must be
determined before designing an absorption field?
A) Property tax status
B) Perc rate and limiting soil depth
C) Paint color of house
D) Age of nearest well
Answer: B
Rationale: Perc tests and soil conditions determine
suitability and absorption system design.
3. A WV septic tank must have its inlet invert how much
compared to the outlet to ensure proper flow?
A) Same level
B) 1 inch lower
C) 2 inches higher
D) 6 inches lower
Answer: C
Rationale: Inverts are positioned to promote flow to
outlet; inlet is higher at least 2 inches.
