4/5/25, 6:40 Septic license |
PM
SEPTIC LICENSE EXAM QUESTIONS AND ANSWERS WITH
COMPLETE SOLUTIONS VERIFIED LATEST UPDATE
Terms in this set (93)
How many days prior to the the desired 2 working days
inspection date should you make your
appointment
What must happen before covering all or Must be inspected and approved
any of the sewage disposal system
What has to happen with roof and surface Must be directed away or downslope from sewage disposal system by footing or
water foundation floor drains or surface diversion ditches
What must be done to all pipe joints Glued and watertight
including those in the drain field
How much fall should there be on all 1/8 inch per foot
parts of the building sewer
Elbows or bends should be no 45 degrees, 90 degree sweeps may be used
greater than ____
What is the rating needed for solid pipe ASTM- 3034 crush rating, or enclosed in a pipe that does meet it
under driving,parking, or any vehicle
encroaching areas
Who is the doe Department of ecology
What department criteria do you follow Department of Ecology (DOE)
for sewage that crosses over waterline
All On-site septic systems should be Dispersal component
watertight except for the ______
Septic tanks should be_____. And on what Level, and on undisturbed soil, or by manufacture standards if other than
kind of soil concrete tank
If grade is dug to deep what should Sand should be added for proper bedding back to correct grade
happen
All connections at tank should be _________ Watertight
Tanks should be accessible at grade A Marker is placed at grade
unless ___
How far down should the top of the tank 6 inches
be from finished grade
Placed in the outlet end of the septic tank and assist in catching non Degradable
What is an effluent filter
materials before they go into your drain field
If getting the top of the tanks 6 inches You must add risers until the riser lids are not more than 6in below finished grade
down is not possible, what must happen
Tanks must be how far from 5ft
property lines, easements, building
foundations, foundation drains,
down gradient
features, and in ground pools
How far away do tanks need to be from 10ft
pressurized water lines
How far away from the drain field do 5 ft
tanks need to be.
1/
5
, 4/5/25, 6:40 Septic license |
PM
Where do the ASTM ratings need to be Face up
when installing pipe
Fittings on distribution boxes need to be Watertight(sealed, grouted, or manufacture fitting)
___
How should a distribution box be set Level on a concrete pad on undisturbed soil
How far from beginning of trench, gravel, 5ft
and perforated pipe should the
distribution box be
All outlets of a distribution box that are Equalizers (such as dial-a-flow)
in use should be equipped with _____
What do equalizers do on distribution All liquid to enter all lines with equal flow simultaneously
boxes
Unused outlets of a distribution box Watertight
should be
Distribution box should be 5ft Beginning of drain field infiltration area - property lines - easement lines -
minimum from driveway
Private wells and open surface water such as (ditches, wear boxes, ponds, lakes,
Distribution box should be 50 ft from
etc.)
Distribution box should be 100ft from Public wells
The inlet of a distribution box should be Vented baffle
equipped with a
A vented baffle can be either a 90 degree sweep with a hole drilled or a PVC "T"
What does the vented baffle prevent Short circuiting
Who must authorize any changes to the Health district and designer
approved design of the septic system
Drainfields must run_____to the slope Perpendicular, may be contoured or curved to do so
The trench bottom of a drain field must Level and hand raked
be
If the soil is smeared in a drain field, what Sidewalls should also be hand raked
must happen
Entire drain field including pipe Bedded in soil and left open
connections should be___for
inspection
All perforated pipes should be Capped exposed for inspection
If sidewalls and trench bottom are They both should be roughed up
smeared or compacted what
must happen
What are the guidelines for drain rock that Must be washed rock or crushed rock ranging from .75 to 2.5 inches
can be used
What is the guideline for covering drain Should be covered with a minimum of 2 inches of gravel
field lines
Original undisturbed soil, no cutting or filling can have taken place following the
Drainfields must be installed on
site evaluation in a proposed drain field area
How far into the native soil should a drain At least 6 inches
field be
Relief line or step down must have______ 1 to 2 inch up sweeps
before entering the lower drain field pipe
What is the minimum coverage on Minimum 6 inches of soil cover on the drain field
the drain field and with what to
cover it
2/
5
PM
SEPTIC LICENSE EXAM QUESTIONS AND ANSWERS WITH
COMPLETE SOLUTIONS VERIFIED LATEST UPDATE
Terms in this set (93)
How many days prior to the the desired 2 working days
inspection date should you make your
appointment
What must happen before covering all or Must be inspected and approved
any of the sewage disposal system
What has to happen with roof and surface Must be directed away or downslope from sewage disposal system by footing or
water foundation floor drains or surface diversion ditches
What must be done to all pipe joints Glued and watertight
including those in the drain field
How much fall should there be on all 1/8 inch per foot
parts of the building sewer
Elbows or bends should be no 45 degrees, 90 degree sweeps may be used
greater than ____
What is the rating needed for solid pipe ASTM- 3034 crush rating, or enclosed in a pipe that does meet it
under driving,parking, or any vehicle
encroaching areas
Who is the doe Department of ecology
What department criteria do you follow Department of Ecology (DOE)
for sewage that crosses over waterline
All On-site septic systems should be Dispersal component
watertight except for the ______
Septic tanks should be_____. And on what Level, and on undisturbed soil, or by manufacture standards if other than
kind of soil concrete tank
If grade is dug to deep what should Sand should be added for proper bedding back to correct grade
happen
All connections at tank should be _________ Watertight
Tanks should be accessible at grade A Marker is placed at grade
unless ___
How far down should the top of the tank 6 inches
be from finished grade
Placed in the outlet end of the septic tank and assist in catching non Degradable
What is an effluent filter
materials before they go into your drain field
If getting the top of the tanks 6 inches You must add risers until the riser lids are not more than 6in below finished grade
down is not possible, what must happen
Tanks must be how far from 5ft
property lines, easements, building
foundations, foundation drains,
down gradient
features, and in ground pools
How far away do tanks need to be from 10ft
pressurized water lines
How far away from the drain field do 5 ft
tanks need to be.
1/
5
, 4/5/25, 6:40 Septic license |
PM
Where do the ASTM ratings need to be Face up
when installing pipe
Fittings on distribution boxes need to be Watertight(sealed, grouted, or manufacture fitting)
___
How should a distribution box be set Level on a concrete pad on undisturbed soil
How far from beginning of trench, gravel, 5ft
and perforated pipe should the
distribution box be
All outlets of a distribution box that are Equalizers (such as dial-a-flow)
in use should be equipped with _____
What do equalizers do on distribution All liquid to enter all lines with equal flow simultaneously
boxes
Unused outlets of a distribution box Watertight
should be
Distribution box should be 5ft Beginning of drain field infiltration area - property lines - easement lines -
minimum from driveway
Private wells and open surface water such as (ditches, wear boxes, ponds, lakes,
Distribution box should be 50 ft from
etc.)
Distribution box should be 100ft from Public wells
The inlet of a distribution box should be Vented baffle
equipped with a
A vented baffle can be either a 90 degree sweep with a hole drilled or a PVC "T"
What does the vented baffle prevent Short circuiting
Who must authorize any changes to the Health district and designer
approved design of the septic system
Drainfields must run_____to the slope Perpendicular, may be contoured or curved to do so
The trench bottom of a drain field must Level and hand raked
be
If the soil is smeared in a drain field, what Sidewalls should also be hand raked
must happen
Entire drain field including pipe Bedded in soil and left open
connections should be___for
inspection
All perforated pipes should be Capped exposed for inspection
If sidewalls and trench bottom are They both should be roughed up
smeared or compacted what
must happen
What are the guidelines for drain rock that Must be washed rock or crushed rock ranging from .75 to 2.5 inches
can be used
What is the guideline for covering drain Should be covered with a minimum of 2 inches of gravel
field lines
Original undisturbed soil, no cutting or filling can have taken place following the
Drainfields must be installed on
site evaluation in a proposed drain field area
How far into the native soil should a drain At least 6 inches
field be
Relief line or step down must have______ 1 to 2 inch up sweeps
before entering the lower drain field pipe
What is the minimum coverage on Minimum 6 inches of soil cover on the drain field
the drain field and with what to
cover it
2/
5
