Texas OSSF Site Evaluator
Exam Practice Questions And
Correct Answers (Verified
Answers) Plus Rationale 2026
Q&A| Instant Download Pdf
Section 1 — Licensing, Role, and Regulatory Framework
1. Which agency administers the Texas OSSF occupational licensing
program?
A. Texas Department of State Health Services
B. Texas Water Development Board
C. Texas Commission on Environmental Quality (TCEQ)
D. Texas Department of Licensing and Regulation
Answer: C. Texas Commission on Environmental Quality (TCEQ)
Rationale: TCEQ administers the OSSF licensing and regulatory
program in Texas.
2. Which Texas Administrative Code chapter contains the primary
OSSF rules?
A. 30 TAC Chapter 217
B. 30 TAC Chapter 290
C. 30 TAC Chapter 30
D. 30 TAC Chapter 285
,Answer: D. 30 TAC Chapter 285
Rationale: Chapter 285 contains the Texas rules governing on-site
sewage facilities, while Chapter 30 contains occupational licensing
provisions.
3. Which Texas law provides the statutory framework for the OSSF
permitting program?
A. Texas Water Code Chapter 13
B. Texas Health and Safety Code Chapter 366
C. Texas Administrative Code Chapter 290
D. Texas Local Government Code Chapter 54
Answer: B. Texas Health and Safety Code Chapter 366
Rationale: Chapter 366 of the Texas Health and Safety Code governs
the state's OSSF permitting program.
4. What is the principal purpose of an OSSF site evaluation?
A. Determine the property's market value
B. Determine the location of the electrical service
C. Determine site suitability and provide information needed to
select and size the OSSF
D. Determine the home's plumbing fixture count only
Answer: C. Determine site suitability and provide information
needed to select and size the OSSF
Rationale: The site evaluation documents soil and site conditions and
supplies information used to determine the type and size of the OSSF.
5. Before an OSSF is constructed, installed, altered, extended, or
repaired, what generally must occur?
,A. A plumbing inspection only
B. A soil fertility test
C. A site evaluation by a licensed Site Evaluator or Professional
Engineer
D. A county tax appraisal
Answer: C. A site evaluation by a licensed Site Evaluator or
Professional Engineer
Rationale: TCEQ states that a site must be evaluated by a licensed
Site Evaluator or licensed professional engineer before an OSSF is
constructed, installed, altered, extended, or repaired.
6. Which professional is specifically authorized to perform an OSSF
site evaluation without holding a separate Site Evaluator license?
A. Licensed electrician
B. Licensed plumber
C. Professional Engineer (PE)
D. Registered apprentice
Answer: C. Professional Engineer (PE)
Rationale: A Texas Professional Engineer may perform site-evaluation
duties without separately holding the OSSF Site Evaluator license.
7. Which license is specifically associated with evaluating site
suitability before construction?
A. Installer I
B. Maintenance Provider
C. Designated Representative
D. Site Evaluator
Answer: D. Site Evaluator
, Rationale: A Site Evaluator is authorized to perform preconstruction
site evaluations and determine suitability for an OSSF.
8. Which of the following is an eligibility route for a Texas OSSF Site
Evaluator license?
A. Current Apprentice registration only
B. Current Installer II license
C. Septic tank pumping registration only
D. Wastewater collection license only
Answer: B. Current Installer II license
Rationale: TCEQ identifies Installer II, Designated Representative,
Professional Engineer, Professional Sanitarian, Certified Professional
Soil Scientist, and certain Professional Geoscientists as qualifying
credentials for Site Evaluator licensure.
9. What additional examination requirement is specifically
identified for applicants seeking the Site Evaluator license?
A. Electrical journeyman exam
B. Plumbing practical exam
C. Soil Analysis Exam
D. Wastewater operator Class A exam
Answer: C. Soil Analysis Exam
Rationale: TCEQ states that Site Evaluator applicants must complete
the required training and pass the Soil Analysis Exam before applying.
10. Which TCEQ training course is identified for a new Site
Evaluator license?
Exam Practice Questions And
Correct Answers (Verified
Answers) Plus Rationale 2026
Q&A| Instant Download Pdf
Section 1 — Licensing, Role, and Regulatory Framework
1. Which agency administers the Texas OSSF occupational licensing
program?
A. Texas Department of State Health Services
B. Texas Water Development Board
C. Texas Commission on Environmental Quality (TCEQ)
D. Texas Department of Licensing and Regulation
Answer: C. Texas Commission on Environmental Quality (TCEQ)
Rationale: TCEQ administers the OSSF licensing and regulatory
program in Texas.
2. Which Texas Administrative Code chapter contains the primary
OSSF rules?
A. 30 TAC Chapter 217
B. 30 TAC Chapter 290
C. 30 TAC Chapter 30
D. 30 TAC Chapter 285
,Answer: D. 30 TAC Chapter 285
Rationale: Chapter 285 contains the Texas rules governing on-site
sewage facilities, while Chapter 30 contains occupational licensing
provisions.
3. Which Texas law provides the statutory framework for the OSSF
permitting program?
A. Texas Water Code Chapter 13
B. Texas Health and Safety Code Chapter 366
C. Texas Administrative Code Chapter 290
D. Texas Local Government Code Chapter 54
Answer: B. Texas Health and Safety Code Chapter 366
Rationale: Chapter 366 of the Texas Health and Safety Code governs
the state's OSSF permitting program.
4. What is the principal purpose of an OSSF site evaluation?
A. Determine the property's market value
B. Determine the location of the electrical service
C. Determine site suitability and provide information needed to
select and size the OSSF
D. Determine the home's plumbing fixture count only
Answer: C. Determine site suitability and provide information
needed to select and size the OSSF
Rationale: The site evaluation documents soil and site conditions and
supplies information used to determine the type and size of the OSSF.
5. Before an OSSF is constructed, installed, altered, extended, or
repaired, what generally must occur?
,A. A plumbing inspection only
B. A soil fertility test
C. A site evaluation by a licensed Site Evaluator or Professional
Engineer
D. A county tax appraisal
Answer: C. A site evaluation by a licensed Site Evaluator or
Professional Engineer
Rationale: TCEQ states that a site must be evaluated by a licensed
Site Evaluator or licensed professional engineer before an OSSF is
constructed, installed, altered, extended, or repaired.
6. Which professional is specifically authorized to perform an OSSF
site evaluation without holding a separate Site Evaluator license?
A. Licensed electrician
B. Licensed plumber
C. Professional Engineer (PE)
D. Registered apprentice
Answer: C. Professional Engineer (PE)
Rationale: A Texas Professional Engineer may perform site-evaluation
duties without separately holding the OSSF Site Evaluator license.
7. Which license is specifically associated with evaluating site
suitability before construction?
A. Installer I
B. Maintenance Provider
C. Designated Representative
D. Site Evaluator
Answer: D. Site Evaluator
, Rationale: A Site Evaluator is authorized to perform preconstruction
site evaluations and determine suitability for an OSSF.
8. Which of the following is an eligibility route for a Texas OSSF Site
Evaluator license?
A. Current Apprentice registration only
B. Current Installer II license
C. Septic tank pumping registration only
D. Wastewater collection license only
Answer: B. Current Installer II license
Rationale: TCEQ identifies Installer II, Designated Representative,
Professional Engineer, Professional Sanitarian, Certified Professional
Soil Scientist, and certain Professional Geoscientists as qualifying
credentials for Site Evaluator licensure.
9. What additional examination requirement is specifically
identified for applicants seeking the Site Evaluator license?
A. Electrical journeyman exam
B. Plumbing practical exam
C. Soil Analysis Exam
D. Wastewater operator Class A exam
Answer: C. Soil Analysis Exam
Rationale: TCEQ states that Site Evaluator applicants must complete
the required training and pass the Soil Analysis Exam before applying.
10. Which TCEQ training course is identified for a new Site
Evaluator license?
