OSSF INSTALLER 1 ACTUAL EXAM SCRIPT 2026
QUESTIONS WITH ANSWERS GRADED A+
◉ Wastewater disposal and OSSF systems are regulated in order to
protect. Answer: Public health and environment
◉ A ______ is a disease-causing microorganism. Answer: Pathogen
◉ A groundwater chemical contaminant that can result from septic tanks
and leachfields is which can cause_____in infants. Answer: Nitrates and
methoemoglobinmia
◉ Statewide regulation of OSSF began in. Answer: 1989 Sept
◉ The state agency responsible for regulating OSSF is. Answer: TECQ
◉ The desired method or level of OSSF regulation in Texas is
_______regulation. Answer: Local
◉ pH measures whether wastewater is ______\or_________. Answer:
Acidity Basicity
,◉ List six diseases that might be transmitted by inadequately treated
sewage . Answer: Typhoid Paratyphoid Polio meningitis Hepatitis
Cholera
◉ Identify the following terms TSS DO BOD. Answer: Total Suspended
solids
Dissolved Oxygen
Biochemical oxygen demand
◉ Identify the most common chemical elements of sewage. Answer:
Solids
Gases
Fats and greases
DO
BOD
PH
◉ What is the criteria that can be used to determine if a subsurface
OSSF system is functioning properly ? Answer: The Plumbing system
must drain
No Water is surfacing or pooling above ground
There are no odors
The waste water must receive nearly complete treatment
, ◉ List the soil treatment mechanisms important in treating wastewater.
Answer: filtering or straining
Adsorption
Biological
◉ The is authorized to review permit applications , site evaluations ,
planning materials and conduct inspections of OSSFs .
a . installer
b . site evaluator
c . maintenance technician
d . Designated representative. Answer: d . Designated representative
◉ An individual who holds a valid license from TCEQ and who is
compensated by another individual to construct install , alter , or repair
an OSSF is a ( n )
a . Installer
b . apprentice
c . authorized agent
d . maintenance provider. Answer: a . Installer
◉ An individual who visits a site and conducts soil evaluations and a site
survey is a ( n )
a . apprentice
QUESTIONS WITH ANSWERS GRADED A+
◉ Wastewater disposal and OSSF systems are regulated in order to
protect. Answer: Public health and environment
◉ A ______ is a disease-causing microorganism. Answer: Pathogen
◉ A groundwater chemical contaminant that can result from septic tanks
and leachfields is which can cause_____in infants. Answer: Nitrates and
methoemoglobinmia
◉ Statewide regulation of OSSF began in. Answer: 1989 Sept
◉ The state agency responsible for regulating OSSF is. Answer: TECQ
◉ The desired method or level of OSSF regulation in Texas is
_______regulation. Answer: Local
◉ pH measures whether wastewater is ______\or_________. Answer:
Acidity Basicity
,◉ List six diseases that might be transmitted by inadequately treated
sewage . Answer: Typhoid Paratyphoid Polio meningitis Hepatitis
Cholera
◉ Identify the following terms TSS DO BOD. Answer: Total Suspended
solids
Dissolved Oxygen
Biochemical oxygen demand
◉ Identify the most common chemical elements of sewage. Answer:
Solids
Gases
Fats and greases
DO
BOD
PH
◉ What is the criteria that can be used to determine if a subsurface
OSSF system is functioning properly ? Answer: The Plumbing system
must drain
No Water is surfacing or pooling above ground
There are no odors
The waste water must receive nearly complete treatment
, ◉ List the soil treatment mechanisms important in treating wastewater.
Answer: filtering or straining
Adsorption
Biological
◉ The is authorized to review permit applications , site evaluations ,
planning materials and conduct inspections of OSSFs .
a . installer
b . site evaluator
c . maintenance technician
d . Designated representative. Answer: d . Designated representative
◉ An individual who holds a valid license from TCEQ and who is
compensated by another individual to construct install , alter , or repair
an OSSF is a ( n )
a . Installer
b . apprentice
c . authorized agent
d . maintenance provider. Answer: a . Installer
◉ An individual who visits a site and conducts soil evaluations and a site
survey is a ( n )
a . apprentice
