OSSF INSTALLER 2 FINAL PAPER EXAM
2026 PRACTICE SOLUTION TESTED
QUESTIONS AND 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
2026 PRACTICE SOLUTION TESTED
QUESTIONS AND 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
