OSSF INSTALLER 1 LICENSE EXAM 2026
TEST QUESTIONS AND COMPLETE
ANSWERS ACCURATE REVIEW MATERIAL
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
TEST QUESTIONS AND COMPLETE
ANSWERS ACCURATE REVIEW MATERIAL
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
