Written by students who passed Immediately available after payment Read online or as PDF Wrong document? Swap it for free 4.6 TrustPilot
logo-home
Document preview thumbnail
Preview 4 out of 35 pages
Exam (elaborations)

Texas OSSF Installer I & II Licensing Exam 2026 — 100 Actual Exam Q&A with Verified Answers & TCEQ Rationales

Document preview thumbnail
Preview 4 out of 35 pages

Pass the TCEQ Texas OSSF Installer I & II Licensing Exam with this brand-new 2026 actual exam study guide. Features 100 verified Q&A with detailed rationales covering TAC Chapter 285, percolation testing, septic tank installation, drain field design, aerobic treatment units, soil evaluation, effluent distribution, TCEQ regulations, and system maintenance. Guaranteed pass prep for Installer I, Installer II, and Maintenance Provider CBT exams. Instant PDF download.

Content preview

Pageh1hofh35



TEXAS SEPTIC INSTALLER LICENSING EXAM NEWEST 2
h h h h h h



026 ACTUAL EXAM QUESTIONS AND CORRECT DETAIL
h h h h h h



ED ANSWERS (VERIFIED ANSWERS) ALL ANSWERED {
h h h h h h



100 Q & A} ALREADY GRADED A+ | BRAND NEW! | 100%
h h h h h h h h h h h h



GUARANTEED PASS h




1. An OSSF permit may be denied if:
h h h h h h h



a) The soil does not meet minimum percolation or
h h h h h h h h



depth requirements h



b) The tank is less than 2 years old
h h h h h h h



c) The house is not occupied
h h h h



d) The owner does not want chlorine
h h h h h



Rationale: Soil conditions that do not support treatment are valid
h h h h h h h h h h



reasons to deny a permit. h h h h




2. A system permit becomes void if installation is not
h h h h h h h h h



completed within how many months? h h h h



a) 6
b) 9
c) 12
d) 18
Rationale: Texas permits expire if the system is not i
h h h h h h h h h



nstalled within 12 months of issuance.
h h h h h




3. Which of the following requires immediate reporting to
h h h h h h h h


TCEQ?
a) Increased water bill h h



b) Landscaping near the tank h h h



c) System discharge onto ground surface
h h h h

,Pageh2hofh35


d) Septic odor near vent h h h



Rationale: Surface discharge is a public health violation and mus
h h h h h h h h h



t be reported.
h h




4. When is a professional maintenance contract required by l
h h h h h h h h


aw?
a) All systems h



b) Only for systems near water
h h h h



c) For all aerobic treatment systems
h h h h



d) If the owner requests
h h h



Rationale: Aerobic systems require routine inspection and maint
h h h h h h h



enance under a contract. h h h




5. Gravel-less pipe systems use: h h h



a) Corrugated pipe with geotextile material h h h h



b) Concrete tiles h



c) Poured gravel h



d) Clay pipes h



Rationale: Gravel- h



less systems are a modern alternative using pipe wrapped in
h h h h h h h h h h



geotextile for absorption. h h




6. A maintenance contract is required for which type of
h h h h h h h h h



OSSF system? h



a) Standard septic tank h h



b) Aerobic treatment unit h h



c) Gravel-less trench h

,Pageh3hofh35


d) Conventional system with effluent filter h h h h



Rationale: ATUs must be maintained under contract by a license
h h h h h h h h h



d provider to ensure performance.
h h h h




7. What should be done before backfilling a septic
h h h h h h h h



tank installation?
h



a) Add water to tank h h h



b) Inspection by the permitting authority h h h h



c) Start using the system h h h



d) Install distribution box h h



Rationale: The permitting authority must inspect the system
h h h h h h h



before it’s covered to verify compliance.
h h h h h




8. The minimum separation distance between a septic tank
h h h h h h h h



and a public water supply well is:
h h h h h h



a) 50 feet h



b) 100 feet h



c) 150 feet h



d) 200 feet h



Rationale: Texas requires at least 150 feet of separation between
h h h h h h h h h h



septic tanks and public water wells.
h h h h h




9. What happens if a septic tank is installed out of level?
h h h h h h h h h h



a) It may lead to solids clogging the outlet
h h h h h h h



b) Water will evaporate faster h h h



c) The tank will self-adjust
h h h



d) Chlorine won’t work h h



Rationale: An uneven tank may not settle solids properly, leadin
h h h h h h h h h



g to outlet clogging and failure.
h h h h h




10. The typical lifespan of a properly maintained
h h h h h h h



conventional OSSF system is: h h h



a) 5–10 years h

, Pageh4hofh35


b) 10–15 years h



c) 20–30 years h



d) 40–50 years h



Rationale: A properly maintained system can last 20 to 30 years
h h h h h h h h h h



or more.
h h




11. A permit is not required for which of the following in
h h h h h h h h h h h


Texas?
a) Installing a new septic system h h h h



b) Modifying an existing system h h h



c) Replacing a broken sprinkler head in an existing spray s h h h h h h h h h


ystem
d) Expanding an absorption field h h h



Rationale: Minor repairs like replacing sprinkler heads
h h h h h h



don’t require new permits.
h h h




12. A visual sign of high water usage in the home may be:
h h h h h h h h h h h



a) Yellow grass h



b) Continual wetness near the drain field h h h h h



c) Rotten egg smell inside h h h



d) Cloudy tap water h h



Rationale: Overuse of water may cause saturation of the drai
h h h h h h h h h



n field, leading to surfacing water.
h h h h h




13. A two-compartment septic tank is designed to:
h h h h h h



a) Mix incoming wastewater
h h



b) Settle solids in stages for improved separation
h h h h h h



c) Accelerate sludge buildup h h



d) Reduce odor h



Rationale: Two compartments improve settling by allowing solid
h h h h h h h



s to separate in two stages.
h h h h h




14. Before installation begins, what must be verified on-site?
h h h h h h h



a) Property ownership h

Document information

Uploaded on
July 11, 2026
Number of pages
35
Written in
2025/2026
Type
Exam (elaborations)
Contains
Questions & answers
$13.99

Wrong document? Swap it for free Within 14 days of purchase and before downloading, you can choose a different document. You can simply spend the amount again.
Written by students who passed
Immediately available after payment
Read online or as PDF

Seller avatar
Reputation scores are based on the amount of documents a seller has sold for a fee and the reviews they have received for those documents. There are three levels: Bronze, Silver and Gold. The better the reputation, the more your can rely on the quality of the sellers work.
Lectgrayson
3.9
(18)
Sold
108
Followers
5
Items
2341
Last sold
3 days ago


Why students choose Stuvia

Created by fellow students, verified by reviews

Quality you can trust: written by students who passed their tests and reviewed by others who've used these notes.

Didn't get what you expected? Choose another document

No worries! You can instantly pick a different document that better fits what you're looking for.

Pay as you like, start learning right away

No subscription, no commitments. Pay the way you're used to via credit card and download your PDF document instantly.

Student with book image

“Bought, downloaded, and aced it. It really can be that simple.”

Alisha Student

Working on your references?

Create accurate citations in APA, MLA and Harvard with our free citation generator.

Working on your references?

Frequently asked questions