TEXAS ON-SITE SEWAGE FACILITY (OSSF)
MAINTENANCE PROVIDER LICENSING
EXAMINATION COMPLETE QUESTIONS AND
DETAILED SOLUTIONS LATEST UPDATE THIS
YEAR JUST RELEASED
Exam Coverage Summary
1. Texas Health and Safety Code and Texas Administrative Code (30 TAC Chapter 285)
2. Roles, responsibilities, and ethics of licensed OSSF Maintenance Providers
3. Types of On-Site Sewage Facility systems and treatment technologies
4. Aerobic Treatment Units (ATUs), components, and operating principles
5. Spray distribution systems, drip irrigation, low-pressure dosing, and disposal methods
6. Pumps, alarms, timers, floats, control panels, and electrical safety
7. Routine inspection procedures, maintenance schedules, and troubleshooting
8. Effluent quality, disinfection methods, chlorine tablets, UV systems, and sampling
requirements
9. Safety procedures, confined space awareness, personal protective equipment, and
environmental protection
10. Maintenance reporting, homeowner education, documentation, and regulatory
compliance
Texas OSSF Maintenance Provider Licensing Examination
Question 1
Which responsibility best describes the primary legal duty of a licensed Texas
OSSF Maintenance Provider during every required maintenance visit to an aerobic
treatment system?
,A. Selling replacement equipment regardless of system condition
B. Inspecting, servicing, documenting, and reporting system performance
according to state regulations
C. Performing plumbing repairs inside the residence without authorization
D. Replacing the treatment tank during every inspection
Answer: B
Rationale: Texas regulations require maintenance providers to inspect, service,
document, and report system performance while ensuring continued regulatory
compliance.
Question 2
Why is maintaining adequate dissolved oxygen inside an aerobic treatment unit
considered essential for effective wastewater treatment and overall system
performance?
A. It encourages beneficial aerobic bacteria responsible for wastewater treatment.
B. It eliminates the need for disinfecting treated effluent.
C. It prevents all sludge accumulation indefinitely.
D. It completely replaces routine maintenance requirements.
Answer: A
Rationale: Aerobic bacteria require oxygen to efficiently break down organic
matter, producing higher-quality effluent than anaerobic treatment alone.
,Question 3
During a scheduled maintenance inspection, which observation would most
strongly indicate that an aerobic treatment unit's air compressor requires immediate
evaluation?
A. Loud abnormal noises accompanied by reduced air output and poor aeration
inside the treatment chamber
B. Grass growing evenly above the treatment tank
C. Clear inspection ports with secure lids
D. Normal chlorine tablet levels inside the chlorinator
Answer: A
Rationale: Reduced airflow and unusual compressor noise commonly indicate
failing equipment that can significantly reduce treatment efficiency.
Question 4
Which statement best explains why inspection records must remain accurate,
complete, and submitted according to applicable Texas OSSF regulatory
requirements?
A. Accurate records demonstrate compliance, support public health protection, and
provide documentation for future inspections.
B. Records are only necessary when homeowners specifically request them.
C. Reports are optional for residential aerobic systems.
D. Documentation replaces physical inspections.
, Answer: A
Rationale: Proper documentation is required by regulation and provides evidence
of maintenance activities and system compliance.
Question 5
A homeowner reports continuous operation of the spray irrigation pump even when
wastewater usage remains minimal throughout the day. What should the
maintenance provider investigate first?
A. Float switch malfunction or improper control settings affecting pump operation
B. Lawn fertilizer application schedule
C. Property tax assessment records
D. Septic tank color
Answer: A
Rationale: Continuous pump operation commonly indicates float switch problems,
stuck relays, or control panel malfunctions.
Question 6
Which component primarily provides final disinfection of treated wastewater
before surface spray application in many Texas aerobic systems?
A. Chlorinator containing approved wastewater chlorine tablets
B. Trash tank
MAINTENANCE PROVIDER LICENSING
EXAMINATION COMPLETE QUESTIONS AND
DETAILED SOLUTIONS LATEST UPDATE THIS
YEAR JUST RELEASED
Exam Coverage Summary
1. Texas Health and Safety Code and Texas Administrative Code (30 TAC Chapter 285)
2. Roles, responsibilities, and ethics of licensed OSSF Maintenance Providers
3. Types of On-Site Sewage Facility systems and treatment technologies
4. Aerobic Treatment Units (ATUs), components, and operating principles
5. Spray distribution systems, drip irrigation, low-pressure dosing, and disposal methods
6. Pumps, alarms, timers, floats, control panels, and electrical safety
7. Routine inspection procedures, maintenance schedules, and troubleshooting
8. Effluent quality, disinfection methods, chlorine tablets, UV systems, and sampling
requirements
9. Safety procedures, confined space awareness, personal protective equipment, and
environmental protection
10. Maintenance reporting, homeowner education, documentation, and regulatory
compliance
Texas OSSF Maintenance Provider Licensing Examination
Question 1
Which responsibility best describes the primary legal duty of a licensed Texas
OSSF Maintenance Provider during every required maintenance visit to an aerobic
treatment system?
,A. Selling replacement equipment regardless of system condition
B. Inspecting, servicing, documenting, and reporting system performance
according to state regulations
C. Performing plumbing repairs inside the residence without authorization
D. Replacing the treatment tank during every inspection
Answer: B
Rationale: Texas regulations require maintenance providers to inspect, service,
document, and report system performance while ensuring continued regulatory
compliance.
Question 2
Why is maintaining adequate dissolved oxygen inside an aerobic treatment unit
considered essential for effective wastewater treatment and overall system
performance?
A. It encourages beneficial aerobic bacteria responsible for wastewater treatment.
B. It eliminates the need for disinfecting treated effluent.
C. It prevents all sludge accumulation indefinitely.
D. It completely replaces routine maintenance requirements.
Answer: A
Rationale: Aerobic bacteria require oxygen to efficiently break down organic
matter, producing higher-quality effluent than anaerobic treatment alone.
,Question 3
During a scheduled maintenance inspection, which observation would most
strongly indicate that an aerobic treatment unit's air compressor requires immediate
evaluation?
A. Loud abnormal noises accompanied by reduced air output and poor aeration
inside the treatment chamber
B. Grass growing evenly above the treatment tank
C. Clear inspection ports with secure lids
D. Normal chlorine tablet levels inside the chlorinator
Answer: A
Rationale: Reduced airflow and unusual compressor noise commonly indicate
failing equipment that can significantly reduce treatment efficiency.
Question 4
Which statement best explains why inspection records must remain accurate,
complete, and submitted according to applicable Texas OSSF regulatory
requirements?
A. Accurate records demonstrate compliance, support public health protection, and
provide documentation for future inspections.
B. Records are only necessary when homeowners specifically request them.
C. Reports are optional for residential aerobic systems.
D. Documentation replaces physical inspections.
, Answer: A
Rationale: Proper documentation is required by regulation and provides evidence
of maintenance activities and system compliance.
Question 5
A homeowner reports continuous operation of the spray irrigation pump even when
wastewater usage remains minimal throughout the day. What should the
maintenance provider investigate first?
A. Float switch malfunction or improper control settings affecting pump operation
B. Lawn fertilizer application schedule
C. Property tax assessment records
D. Septic tank color
Answer: A
Rationale: Continuous pump operation commonly indicates float switch problems,
stuck relays, or control panel malfunctions.
Question 6
Which component primarily provides final disinfection of treated wastewater
before surface spray application in many Texas aerobic systems?
A. Chlorinator containing approved wastewater chlorine tablets
B. Trash tank
