OSSF Installer 2 License EXAM NEWEST 2026
(GRADED A+ 100% DETAILED VERIFIED ANSWERS)
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
d . designated representative - ANSWER✅ b . Site evaluator
(GRADED A+ 100% DETAILED VERIFIED ANSWERS)
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
d . designated representative - ANSWER✅ b . Site evaluator
