OSSF INSTALLER 2 EXAM SCRIPT 2026
QUESTIONS WITH CORRECT ANSWERS
◉ 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.
~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
◉ 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)
QUESTIONS WITH CORRECT ANSWERS
◉ 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.
~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
◉ 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)
