OSSF INSTALLER 2 EXAM QUESTIONS
AND ANSWERS 100% PASS 2026/2027
The primary threat from malfunctioning OSSF systems is - ANS water born disease
Wastewater disposal and OSSF systems are regulated in order to protect - ANS Public health
and environment
A ______ is a disease-causing microorganism - ANS Pathogen
A groundwater chemical contaminant that can result from septic tanks and leachfields is which
can cause_____in infants - ANS Nitrates and methoemoglobinmia
Statewide regulation of OSSF began in - ANS 1989 Sept
The state agency responsible for regulating OSSF is - ANS TECQ
The desired method or level of OSSF regulation in Texas is _______regulation - ANS Local
pH measures whether wastewater is ______\or_________ - ANS Acidity Basicity
2026/2027 ALLRIGHTS RESERVED 1
,List six diseases that might be transmitted by inadequately treated sewage . - ANS Typhoid
Paratyphoid Polio meningitis Hepatitis Cholera
Identify the following terms TSS DO BOD - ANS Total Suspended solids
Dissolved Oxygen
Biochemical oxygen demand
Identify the most common chemical elements of sewage - ANS 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 ? - ANS 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 - ANS filtering or
straining
Adsorption
Biological
2026/2027 ALLRIGHTS RESERVED 2
, 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 - ANS 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 - ANS a . Installer
An individual who visits a site and conducts soil evaluations and a site survey is a ( n )
a . apprentice
b . Site evaluator
c . authorized agent
d . designated representative - ANS b . Site evaluator
_____adopted the current OSSF Rules in 1997 and revised them several times . - ANS TCEQ
New OSSF licenses are issued for a term of _______.An individual must renew the license
complete _________of TCEQ approved continuing education courses in order to - ANS 3
years 24 hrs
2026/2027 ALLRIGHTS RESERVED 3
AND ANSWERS 100% PASS 2026/2027
The primary threat from malfunctioning OSSF systems is - ANS water born disease
Wastewater disposal and OSSF systems are regulated in order to protect - ANS Public health
and environment
A ______ is a disease-causing microorganism - ANS Pathogen
A groundwater chemical contaminant that can result from septic tanks and leachfields is which
can cause_____in infants - ANS Nitrates and methoemoglobinmia
Statewide regulation of OSSF began in - ANS 1989 Sept
The state agency responsible for regulating OSSF is - ANS TECQ
The desired method or level of OSSF regulation in Texas is _______regulation - ANS Local
pH measures whether wastewater is ______\or_________ - ANS Acidity Basicity
2026/2027 ALLRIGHTS RESERVED 1
,List six diseases that might be transmitted by inadequately treated sewage . - ANS Typhoid
Paratyphoid Polio meningitis Hepatitis Cholera
Identify the following terms TSS DO BOD - ANS Total Suspended solids
Dissolved Oxygen
Biochemical oxygen demand
Identify the most common chemical elements of sewage - ANS 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 ? - ANS 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 - ANS filtering or
straining
Adsorption
Biological
2026/2027 ALLRIGHTS RESERVED 2
, 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 - ANS 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 - ANS a . Installer
An individual who visits a site and conducts soil evaluations and a site survey is a ( n )
a . apprentice
b . Site evaluator
c . authorized agent
d . designated representative - ANS b . Site evaluator
_____adopted the current OSSF Rules in 1997 and revised them several times . - ANS TCEQ
New OSSF licenses are issued for a term of _______.An individual must renew the license
complete _________of TCEQ approved continuing education courses in order to - ANS 3
years 24 hrs
2026/2027 ALLRIGHTS RESERVED 3
