OSSF INSTALLER 1 FINAL PAPER 2026
QUESTIONS WITH ANSWERS GRADED A+
◉ The term ______ refers to water that collects beneath the surface of
the earth in porous, permeable, water-bearing geologic formations or
aquifers. Answer: groundwater
◉ The term ________refers to water that is found above ground in
containment areas, such as lakes, rivers, streams, creeks, and reservoirs.
Answer: surface water
◉ Water table aquifers are recharged by _______________ of water.
Answer: infiltration
◉ Rock-filled or lined pits dug at least 4 feet deep at the end of a septic
tank absorption field system are called __________. Answer: leach
fields/ 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
wastewater are called ____________. Answer: cesspools
QUESTIONS WITH ANSWERS GRADED A+
◉ The term ______ refers to water that collects beneath the surface of
the earth in porous, permeable, water-bearing geologic formations or
aquifers. Answer: groundwater
◉ The term ________refers to water that is found above ground in
containment areas, such as lakes, rivers, streams, creeks, and reservoirs.
Answer: surface water
◉ Water table aquifers are recharged by _______________ of water.
Answer: infiltration
◉ Rock-filled or lined pits dug at least 4 feet deep at the end of a septic
tank absorption field system are called __________. Answer: leach
fields/ 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
wastewater are called ____________. Answer: cesspools
