TEXAS ON-SITE SEWAGE FACILITY (OSSF) ESIGNER LICENSE EXAM NEWEST 2026/2027 ACTUAL EXAM QUESTIONS AND CORRECT ANSWERS (VERIFIED) GRADED A+ | 100% GUARANTEED PASS.

TEXAS ON-SITE SEWAGE FACILITY (OSSF) ESIGNER LICENSE EXAM NEWEST 2026/2027 ACTUAL EXAM QUESTIONS AND CORRECT ANSWERS (VERIFIED) GRADED A+ | 100% GUARANTEED PASS. 1. What is the minimum lot size for a single-family dwelling using a standard OSSF without a public water supply? A. 0.25 acres B. 1 acre C. 1.5 acres D. 2 acres A minimum of 1 acre is required when a public water supply is not available to reduce the risk of groundwater contamination. 2. What should be done before starting the installation of a permitted OSSF? A. Order parts B. Notify permitting authority for pre-cover inspection C. Fill tank with water D.Remove all vegetation 3. A pre-cover inspection ensures the system meets design and regulatory requirements before backfilling. 4. A standard home with 4 bedrooms would typically require a septic tank capacity of at least: B.1,250 gallons Texas requires at least 1,250 gallons for homes with more than 3 bedrooms to accommodate increased flow. reports for an ATU? A. Monthly B. Every 6 months C. Every 4 months D. Once a year Maintenance providers must inspect and report on ATUs every 4 months as per TCEQ rules. 6. A surface application system must not spray within how many feet of a swimming pool? A.10 feet B.75 feet C.50 feet D. 100 feet To prevent effluent from contaminating recreational water, a 75- foot separation is required. C.To provide access for inspection and maintenance Risers provide ground-level access for maintenance without excavation. ר ו 20Hוסו B. Elevated or mound system C. Pit system D. Sand filter Shallow limiting conditions such as rock or groundwater necessitate elevated treatment units. 9. What is the minimum linear footage required for a 400 gpd flow in Class II soil with 0.5 gpd/ft²? A. 200 feet B.800 feet C.400 feet D. 100 feet 400+0.5 = 800 linear feet needed to distribute that volume over Class Il soil. 10. Who has the authority to issue permits for OSSF C.Authorized Agent or TCEQ Only an authorized agent or TCEQ can issue OSSF permits in Texas. B.75 foct A 75-foot buffer protects surface water from potential contamination by effluent. 12. Which of the following components is NOT typically included in a standard OSSF? A. Septic tank B. Drain field C. Distribution box D. UV light disinfection unit UV disinfection is used in advanced or surface application systems, not standard systems. 13. Which Texas regulation governs the design and installation of 0SSFs? A.Title 10, Health & Safety Code B. Title 30, Texas Administrative Code Chapter 285 C. Title 12, Water Code OSSFs are governed by Title 30, TAC Chapter 285. B.15% Surface application is limited to 15% slope to prevent runoff and ensure proper absorption. method for septic tank sludge? A. Burn it B. Dump on field C.Pump and transport to an approved facility D. Bury onsite Sludge must be removed and disposed of at a licensed treatment facility. 23. In an aerobic system, the air pump must operate: A. 6 hours per day B.Continuously (24/7) C. Only when tank is full D. Only during daylight Thank you for Purchasing this exam Study Guide. We provide high-quality academic materials to help students excel in exams. Our other Services include but not limited to: academic research, University & College assignments writing, essay writing, Online Classes, and research projects. Our services are reliable, affordable, and plagiarism-free. All the Best in your Exam. For more information; Contact us at: or 0R +254