SEPTIC LICENSE ACTUAL EXAM PAPER 2026
TEST QUESTIONS WITH CORRECT ANSWERS
◉ What must happen before covering all or any of the sewage disposal
system. Answer: Must be inspected and approved
◉ What has to happen with roof and surface water. Answer: Must be
directed away or downslope from sewage disposal system by footing or
foundation floor drains or surface diversion ditches
◉ What must be done to all pipe joints including those in the drain field.
Answer: Glued and watertight
◉ How much fall should there be on all parts of the building sewer.
Answer: 1/8 inch per foot
◉ Elbows or bends should be no greater than ____. Answer: 45 degrees,
90 degree sweeps may be used
◉ What is the rating needed for solid pipe under driving,parking, or any
vehicle encroaching areas. Answer: ASTM- 3034 crush rating, or
enclosed in a pipe that does meet it
, ◉ Who is the doe. Answer: Department of ecology
◉ What department criteria do you follow for sewage that crosses over
waterline. Answer: Department of Ecology (DOE)
◉ All On-site septic systems should be watertight except for the ______.
Answer: Dispersal component
◉ Septic tanks should be _____. And on what kind of soil. Answer:
Level, and on undisturbed soil, or by manufacture standards if other than
concrete tank
◉ If grade is dug to deep what should happen. Answer: Sand should be
added for proper bedding back to correct grade
◉ All connections at tank should be _________. Answer: Watertight
◉ Tanks should be accessible at grade unless ___. Answer: A Marker is
placed at grade
◉ How far down should the top of the tank be from finished grade.
Answer: 6 inches
TEST QUESTIONS WITH CORRECT ANSWERS
◉ What must happen before covering all or any of the sewage disposal
system. Answer: Must be inspected and approved
◉ What has to happen with roof and surface water. Answer: Must be
directed away or downslope from sewage disposal system by footing or
foundation floor drains or surface diversion ditches
◉ What must be done to all pipe joints including those in the drain field.
Answer: Glued and watertight
◉ How much fall should there be on all parts of the building sewer.
Answer: 1/8 inch per foot
◉ Elbows or bends should be no greater than ____. Answer: 45 degrees,
90 degree sweeps may be used
◉ What is the rating needed for solid pipe under driving,parking, or any
vehicle encroaching areas. Answer: ASTM- 3034 crush rating, or
enclosed in a pipe that does meet it
, ◉ Who is the doe. Answer: Department of ecology
◉ What department criteria do you follow for sewage that crosses over
waterline. Answer: Department of Ecology (DOE)
◉ All On-site septic systems should be watertight except for the ______.
Answer: Dispersal component
◉ Septic tanks should be _____. And on what kind of soil. Answer:
Level, and on undisturbed soil, or by manufacture standards if other than
concrete tank
◉ If grade is dug to deep what should happen. Answer: Sand should be
added for proper bedding back to correct grade
◉ All connections at tank should be _________. Answer: Watertight
◉ Tanks should be accessible at grade unless ___. Answer: A Marker is
placed at grade
◉ How far down should the top of the tank be from finished grade.
Answer: 6 inches
