OSSF Installer 2 License Exam
And Answers with Complete
Solutions Already Passed 2026.
The primary threat from malfunctioning OSSF systems is - ANSWER-water born
disease
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
b . Site evaluator
c . authorized agent
And Answers with Complete
Solutions Already Passed 2026.
The primary threat from malfunctioning OSSF systems is - ANSWER-water born
disease
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
b . Site evaluator
c . authorized agent
