Conventional septic system installer
Test Questions and Actual Detailed
Answers (2025-2026) Edition.
Accessible community sewer - Answer Means a public sewerage system where it's utilization
by a given piece of property is not limited because of physical or other features as determined
by the commissioner
Advanced treatment system (ATS) - Answer Means an approved treatment device in
compliance with rule 0400-48-01-10 that is separate and distinct from the disposal field and is
used to improve the quality of septic thank effluent to secondary levels
Agency of government - Answer In the context of public sewerage systems, means state,
county, and municipal government agencies including their subdivisions and utility districts, but
does not include entities regulated by the Tennessee regulatory authority.
Air/Vacuum Relief Valves - Answer Means a device that allows the air in a distribution system
to escape during pressurized flow, and allows air to enter the system durning depressurized flow
Alternate methods of disposal - Answer Means a subsurface sewage disposal system, the
construction, installation, and operation of which varies from that of a conventional subsurface
sewage disposal system.
Blockout - Answer Means a potential access hole which is a think section of concrete
preformed in a septic tank which can be removed to allow insertion of a four to six inch pipe
Boundary outline - Answer Means a map or chart with lines delineating the boundaries of the
proposed area or parcel of land
Buffer zone - Answer Means the distance between subsurface sewage disposal systems or
subsystems required to alleviate the impact of hydraulic overloading from the adjacent system
Commissioner - Answer Means the commissioner of environment and conservation, the
commissioners duly authorized representative, and in the event of commissioners absence or a
vacancy in the office of commissioner, the deputy commissioner
, Conventional subsurface sewage, disposal system - Answer Means a disposal system that pre-
treat sewage by use of septic tank and applies effluent to the soil as described in rule 0400-48-
01-07
Department - Answer Means the department of environment and conservation
Disposal field - Answer Means the part of a subsurface sewage disposal system that utilizes
the soil for absorption and treatment of septic tank effluent
Domestic septage - Answer Means either liquid or solid material. Removed from a septic tank,
cesspool, portable, toilet, type III marine sanitation device, or similar treatment Works, that
receive only domestic sewage domestic septage does not include liquid or solid material
removed from a septic tank, cesspool or similar treatment works, that receives either
commercial wastewater or industrial waste water, and does not include grease trap at a
restaurant.
Dosing chamber - Answer Means a water tight receptacle which house is a sewage effluent
pump or siphon and stores sewage effluent from a septic tank until it is pumped, or dosed to a
disposal field.
Drip emitters - Answer Means a flow control device that is typically attached to the inside wall
of drip line, which allows the discharge of water at a predictable rate for a given pressure
Drip line - Answer Means polyethylene tubing that has been certified for wastewater. Use that
incorporates uniformly spaced drip emitters along it's Length
Effluent filter - Answer Means an effluent treatment Device installed on the outlet of a septic
tank or dosing tank, which is designed to prevent the passage of large suspended matter.
Filled land - Answer Means areas to which, more than 2 feet of Soil, and or debris has been
added
Fragipan - Answer Means natural subsurface horizon with high bulk density, and or high
mechanical Strength relative to the Solum above, seemingly cemented when dry, but when
moist showing a moderate to weak brittleness
Test Questions and Actual Detailed
Answers (2025-2026) Edition.
Accessible community sewer - Answer Means a public sewerage system where it's utilization
by a given piece of property is not limited because of physical or other features as determined
by the commissioner
Advanced treatment system (ATS) - Answer Means an approved treatment device in
compliance with rule 0400-48-01-10 that is separate and distinct from the disposal field and is
used to improve the quality of septic thank effluent to secondary levels
Agency of government - Answer In the context of public sewerage systems, means state,
county, and municipal government agencies including their subdivisions and utility districts, but
does not include entities regulated by the Tennessee regulatory authority.
Air/Vacuum Relief Valves - Answer Means a device that allows the air in a distribution system
to escape during pressurized flow, and allows air to enter the system durning depressurized flow
Alternate methods of disposal - Answer Means a subsurface sewage disposal system, the
construction, installation, and operation of which varies from that of a conventional subsurface
sewage disposal system.
Blockout - Answer Means a potential access hole which is a think section of concrete
preformed in a septic tank which can be removed to allow insertion of a four to six inch pipe
Boundary outline - Answer Means a map or chart with lines delineating the boundaries of the
proposed area or parcel of land
Buffer zone - Answer Means the distance between subsurface sewage disposal systems or
subsystems required to alleviate the impact of hydraulic overloading from the adjacent system
Commissioner - Answer Means the commissioner of environment and conservation, the
commissioners duly authorized representative, and in the event of commissioners absence or a
vacancy in the office of commissioner, the deputy commissioner
, Conventional subsurface sewage, disposal system - Answer Means a disposal system that pre-
treat sewage by use of septic tank and applies effluent to the soil as described in rule 0400-48-
01-07
Department - Answer Means the department of environment and conservation
Disposal field - Answer Means the part of a subsurface sewage disposal system that utilizes
the soil for absorption and treatment of septic tank effluent
Domestic septage - Answer Means either liquid or solid material. Removed from a septic tank,
cesspool, portable, toilet, type III marine sanitation device, or similar treatment Works, that
receive only domestic sewage domestic septage does not include liquid or solid material
removed from a septic tank, cesspool or similar treatment works, that receives either
commercial wastewater or industrial waste water, and does not include grease trap at a
restaurant.
Dosing chamber - Answer Means a water tight receptacle which house is a sewage effluent
pump or siphon and stores sewage effluent from a septic tank until it is pumped, or dosed to a
disposal field.
Drip emitters - Answer Means a flow control device that is typically attached to the inside wall
of drip line, which allows the discharge of water at a predictable rate for a given pressure
Drip line - Answer Means polyethylene tubing that has been certified for wastewater. Use that
incorporates uniformly spaced drip emitters along it's Length
Effluent filter - Answer Means an effluent treatment Device installed on the outlet of a septic
tank or dosing tank, which is designed to prevent the passage of large suspended matter.
Filled land - Answer Means areas to which, more than 2 feet of Soil, and or debris has been
added
Fragipan - Answer Means natural subsurface horizon with high bulk density, and or high
mechanical Strength relative to the Solum above, seemingly cemented when dry, but when
moist showing a moderate to weak brittleness
