OSSF I - Installer 1 License Test Preparation 2026
Exam
1. AA = Q / Ra The formula used to calculate Absorptive Area
in a trench/single-pipe drainfield
is the formula used to calculate what?
2. Percipitation the 3 ways in which the water supply is re-
plenished
Percolation
are what?
Runoff
are 3 ways in which what happens?
3. Groundwater water that collects beneath the earth in
aquifers
is defined as?
is termed as?
4. Surface water water that is found above ground in contain-
ment areas
is defined as?
is termed as?
5. Percolation the way in which water table aquifers are
recharged
is defined as?
is termed as?
6. Neighborhood pollution the three primary routes of septic systems to
contaminate the environment
Groundwater pollution
Surface water pollution
7.
, OSSF I - Installer 1 License Test Preparation 2026
Exam
Static water level the level at which water stands in a well
is defined as? is termed as?
8. Point source pollution specifically located controllable pollution
9. Non point source pollution dispersed and intermittent forms of uncon-
trollable pollution
10. Seepage pits pits at the end of a drain field that are illegal
in Texas
are what?
are called?
11. Artesian aquifer an aquifer that is overlaid by a layer of imper-
vious material
is what?
is called what?
12. September of 1989 month and year that statewide regulations of
OSSF began
is the month and year that what began?
13. HB 1875 law passed by the state of Texas to regulate
OSSF
is what?
14. Authorized agent the local government entity authorized by
TCEQ to regulate OSSF
is defined as?
15. Designated representative individual designated by the authorized
agent to enforce OSSF regulations
16.
, OSSF I - Installer 1 License Test Preparation 2026
Exam
The "Ten acre rule" the rule that states: "a 10-acre or larger tract
in which the disposal lines are at least 100
Is what? feet from the property line is not subject to
permitting processes"
is what?
17. True/false - An Installer I may construct a False
Low Pressure Dosing system.
18. True/false - An Installer I may not con- False
struct a pumped effluent drain field sys-
tem.
19. The amount of time an Installer must call two working days
in advance to schedule a "One-Call"
20. Angle of repose the angle closest to the perpendicular at
which the soil will remain at rest
21. 50% of workers the number of workers who die in confined
spaces attempting to rescue other workers
22. 1 acre 43,560 square feet
is how many square feet? is 1 ?
23. 1 gallon is how many cubic feet? 7.48 cubic feet is 1 ?
24. 1 cubic yard is how many cubic feet? 27 cubic feet is 1 ?
25. V = (π x r^2)H the formula for calculating the volume of
a cylinder where H is either the height or
is the formula for calculating what? length of the cylinder
Exam
1. AA = Q / Ra The formula used to calculate Absorptive Area
in a trench/single-pipe drainfield
is the formula used to calculate what?
2. Percipitation the 3 ways in which the water supply is re-
plenished
Percolation
are what?
Runoff
are 3 ways in which what happens?
3. Groundwater water that collects beneath the earth in
aquifers
is defined as?
is termed as?
4. Surface water water that is found above ground in contain-
ment areas
is defined as?
is termed as?
5. Percolation the way in which water table aquifers are
recharged
is defined as?
is termed as?
6. Neighborhood pollution the three primary routes of septic systems to
contaminate the environment
Groundwater pollution
Surface water pollution
7.
, OSSF I - Installer 1 License Test Preparation 2026
Exam
Static water level the level at which water stands in a well
is defined as? is termed as?
8. Point source pollution specifically located controllable pollution
9. Non point source pollution dispersed and intermittent forms of uncon-
trollable pollution
10. Seepage pits pits at the end of a drain field that are illegal
in Texas
are what?
are called?
11. Artesian aquifer an aquifer that is overlaid by a layer of imper-
vious material
is what?
is called what?
12. September of 1989 month and year that statewide regulations of
OSSF began
is the month and year that what began?
13. HB 1875 law passed by the state of Texas to regulate
OSSF
is what?
14. Authorized agent the local government entity authorized by
TCEQ to regulate OSSF
is defined as?
15. Designated representative individual designated by the authorized
agent to enforce OSSF regulations
16.
, OSSF I - Installer 1 License Test Preparation 2026
Exam
The "Ten acre rule" the rule that states: "a 10-acre or larger tract
in which the disposal lines are at least 100
Is what? feet from the property line is not subject to
permitting processes"
is what?
17. True/false - An Installer I may construct a False
Low Pressure Dosing system.
18. True/false - An Installer I may not con- False
struct a pumped effluent drain field sys-
tem.
19. The amount of time an Installer must call two working days
in advance to schedule a "One-Call"
20. Angle of repose the angle closest to the perpendicular at
which the soil will remain at rest
21. 50% of workers the number of workers who die in confined
spaces attempting to rescue other workers
22. 1 acre 43,560 square feet
is how many square feet? is 1 ?
23. 1 gallon is how many cubic feet? 7.48 cubic feet is 1 ?
24. 1 cubic yard is how many cubic feet? 27 cubic feet is 1 ?
25. V = (π x r^2)H the formula for calculating the volume of
a cylinder where H is either the height or
is the formula for calculating what? length of the cylinder
