Texas OSSF Installer II Exam 2026 – Complete Study Guide & Practice Questions
In the hydrologic cycle, water moves by evaporation and transpiration into the ___________________
where it comes in contact with cooler air, condenses, and falls to the ground in the form of
_____________________ (sleet, snow, hail or rain), and the surface water supply through
_____________________. - (answer)ATMOSPHERE, PRECIPITATION, RUNOFF
The term ___________ _____________ refers to water that collects beneath the surface of the earth in
porous, permeable, water-bearing geologic formations or aquifers. - (answer)GROUND WATER
The term __________ _____________ refers to water that is found above ground in containment areas,
such as lakes, rivers, streams, creeks and reservoirs. - (answer)SURFACE WATERS
Water table aquifers are recharged by ___________ __________________. - (answer)LOCAL
PERCOLATION.
Rock-filled or lined pits dug at least 4 feet deep at the end of a septic tank absorption field system are
called _________ _________. - (answer)SEEPAGE PITS.
Pits constructed in permeable soil with open-jointed material along the sides to the bottom of the pit
that receive a direct discharge of raw waste water are called __________________. -
(answer)CESSPOOLS.
How are water born diseases transmitted? - (answer)MICROORGANISMS
What are 3 primary routes of containment for pathogenetic microorganisms and harmful chemicals
from on-site sewage systems to our environment? - (answer)Neighborhood pollution, groundwater
pollution and surface water pollution.
What problems are a result of neighborhood pollution? - (answer)~Diseases that can be spread by direct
or indirect contact with the standing water.
~Vectors such as roaches and flies, that can also spread diseases after coming in contact with the waste
water.
,Texas OSSF Installer II Exam 2026 – Complete Study Guide & Practice Questions
~Unsightly and unpleasant living conditions that result from the standing waste water.
~Feuds and bad relationships with neighbors that can result from waste water problems.
~Property values drop and real estate transactions fall through. No one benefits and everyone suffers
when neighborhoods are fouled by waste water.
Why is acceptable quality water vital? - (answer)Sustains human life, the natural environment and the
economic life of Texas
Groundwater that is obtained via a well can be used for what purpose? - (answer)Agricultural,
industrial/commercial and drinking water.
What is the difference between a water table aquifer and an artesian aquifer? - (answer)Water table
aquifer is in direct contact with either the soil or the intermediate belt.
Artesian is overplayed by a layer of impervious material.
What is the static water level? - (answer)Level at which water stands in a well.
What are the 2 categories of sources of pollutants in surface water? - (answer)Point source pollution.
Non-point source pollution.
What is the difference between point source and nonpoint source pollution? - (answer)Point source can
be controlled, non point source has little or no control.
Ground water quality is recognized as a minor problem in Texas. - (answer)FALSE
Cesspools and seepage pits are legal systems in Texas and may be installed. - (answer)FALSE
, Texas OSSF Installer II Exam 2026 – Complete Study Guide & Practice Questions
Bore holes and injection wells are legal in Texas and may be installed. - (answer)FALSE
Artesian aquifers can be contaminated by bore holes and injection wells. - (answer)TRUE
In America, laws can be successfully enforced only when the majority of citizens voluntary comply. -
(answer)TRUE
Home owners should be educated on the need for and importance of maintaining their OSSF system. -
(answer)TRUE
Onsite sewage facilities (OSSF) have been regulated statewide since - (answer)1989
The state agency responsible for regulating OSSF systems is - (answer)TCEQ (Texas Commission on
Environmental Quality)
The first regulation of OSSF systems in Texas was done by - (answer)local governments
The intent of the HB1875 law is that most of the regulation of OSSF systems be done by _____________
government. - (answer)local
An official inspector of OSSF systems is a - (answer)(DR) Designated Representative
A local government with the authority to regulate septic systems is termed an - (answer)authorized
agent
A person legally constructing OSSF systems as a business is an______________ and must be licensed by
__________. - (answer)installer, TCEQ
Penalties for violating OSSF regulations fall under the following headings: - (answer)~Criminal
In the hydrologic cycle, water moves by evaporation and transpiration into the ___________________
where it comes in contact with cooler air, condenses, and falls to the ground in the form of
_____________________ (sleet, snow, hail or rain), and the surface water supply through
_____________________. - (answer)ATMOSPHERE, PRECIPITATION, RUNOFF
The term ___________ _____________ refers to water that collects beneath the surface of the earth in
porous, permeable, water-bearing geologic formations or aquifers. - (answer)GROUND WATER
The term __________ _____________ refers to water that is found above ground in containment areas,
such as lakes, rivers, streams, creeks and reservoirs. - (answer)SURFACE WATERS
Water table aquifers are recharged by ___________ __________________. - (answer)LOCAL
PERCOLATION.
Rock-filled or lined pits dug at least 4 feet deep at the end of a septic tank absorption field system are
called _________ _________. - (answer)SEEPAGE PITS.
Pits constructed in permeable soil with open-jointed material along the sides to the bottom of the pit
that receive a direct discharge of raw waste water are called __________________. -
(answer)CESSPOOLS.
How are water born diseases transmitted? - (answer)MICROORGANISMS
What are 3 primary routes of containment for pathogenetic microorganisms and harmful chemicals
from on-site sewage systems to our environment? - (answer)Neighborhood pollution, groundwater
pollution and surface water pollution.
What problems are a result of neighborhood pollution? - (answer)~Diseases that can be spread by direct
or indirect contact with the standing water.
~Vectors such as roaches and flies, that can also spread diseases after coming in contact with the waste
water.
,Texas OSSF Installer II Exam 2026 – Complete Study Guide & Practice Questions
~Unsightly and unpleasant living conditions that result from the standing waste water.
~Feuds and bad relationships with neighbors that can result from waste water problems.
~Property values drop and real estate transactions fall through. No one benefits and everyone suffers
when neighborhoods are fouled by waste water.
Why is acceptable quality water vital? - (answer)Sustains human life, the natural environment and the
economic life of Texas
Groundwater that is obtained via a well can be used for what purpose? - (answer)Agricultural,
industrial/commercial and drinking water.
What is the difference between a water table aquifer and an artesian aquifer? - (answer)Water table
aquifer is in direct contact with either the soil or the intermediate belt.
Artesian is overplayed by a layer of impervious material.
What is the static water level? - (answer)Level at which water stands in a well.
What are the 2 categories of sources of pollutants in surface water? - (answer)Point source pollution.
Non-point source pollution.
What is the difference between point source and nonpoint source pollution? - (answer)Point source can
be controlled, non point source has little or no control.
Ground water quality is recognized as a minor problem in Texas. - (answer)FALSE
Cesspools and seepage pits are legal systems in Texas and may be installed. - (answer)FALSE
, Texas OSSF Installer II Exam 2026 – Complete Study Guide & Practice Questions
Bore holes and injection wells are legal in Texas and may be installed. - (answer)FALSE
Artesian aquifers can be contaminated by bore holes and injection wells. - (answer)TRUE
In America, laws can be successfully enforced only when the majority of citizens voluntary comply. -
(answer)TRUE
Home owners should be educated on the need for and importance of maintaining their OSSF system. -
(answer)TRUE
Onsite sewage facilities (OSSF) have been regulated statewide since - (answer)1989
The state agency responsible for regulating OSSF systems is - (answer)TCEQ (Texas Commission on
Environmental Quality)
The first regulation of OSSF systems in Texas was done by - (answer)local governments
The intent of the HB1875 law is that most of the regulation of OSSF systems be done by _____________
government. - (answer)local
An official inspector of OSSF systems is a - (answer)(DR) Designated Representative
A local government with the authority to regulate septic systems is termed an - (answer)authorized
agent
A person legally constructing OSSF systems as a business is an______________ and must be licensed by
__________. - (answer)installer, TCEQ
Penalties for violating OSSF regulations fall under the following headings: - (answer)~Criminal
