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Septic Installer Test For Washington State
(WOSSA) EXAM Questions with 100%
Correct Answers | Verified | Updated
(Actual Exam)
ANSI - (answers)American National Standards Institute
BOD - (answers)biochemical oxygen demand, typically expressed in mg/L.
CBOD - (answers)Carbonaceous Biochemical Oxygen Demand, expressed in mg/L.
FC - (answers)Fecal Coliform, expressed in number of colonies 100/ml.
LOSS - (answers)large on-site sewage system
NSF - (answers)Nation Sanitation Foundation International
O&G - (answers)Oils and Grease, component of sewage typically originating from
food stuffs (animal fats of vegetable oils) expressed in mg/L.
RS&G - (answers)Recommended Standards and Guidance
SSAS - (answers)a subsurface soil absorption system
, 2
TAC - (answers)Technical Advisory Committee established in WAC 247-272A-0400
TN - (answers)Total Nitrogen, expressed in mg/L.
TSS - (answers)Total Suspended Solids. A measure of the total suspended solids in
a given solution, expressed in mg/L.
USEPA - (answers)United States Environmental Protection Agency
Additive - (answers)a commercial product added to an on-site sewage system
intended to affect the performance or aesthetics of an on-site sewage system
Approved - (answers)Acceptable to the authority having jurisdiction. Local health
officer or the department
BED - (answers)a soil dispersal component consisting of an excavation with a
width greater than 3 feet
Building Sewer - (answers)that part of the horizontal piping of a drainage system
which starts from the end of the building drain and which receives the discharge
of the building drain and conveys it to a public sewer, private sewer, individual
sewage disposal system or other point of disposal. It begins two feet outside the
building wall and conveys sewage from the building drain to the remaining
portions of the on-site sewage system.
, 3
Cesspool - (answers)a covered hole or pit for receiving drainage or sewage, as
from a house allowing liquid to seep into the surronding rock or soil
Conforming System - (answers)an on-site sewage system of component meeting
rules of: New construction requirements
Approved and installed within previous requirements
Permitted by WAC-246-272A-0420
Cover Material - (answers)Soil placed over dispersal component, made up of
mineral material with no greater than 10% organic content. Cover may contain
organic surface material, an organic landscaper to help reduce and contain soil
erosion.
Cuts and Banks - (answers)a naturally occurring or artificially formed slope greater
than one hundred percent (forty-five degrees) and extending vertically at least
five from the toe of the slope to top of the slope.
Department - (answers)Washington State Department of Health
Designer - (answers)Person who matches site and soil characteristics with
approved components
Design Flow - (answers)Means the maximum volume of sewage a residence,
structure or other facility is estimated to generate in a twenty-four hour period. It
, 4
incorporates both an operating capacity and a surge capacity for the system
during periodic heavy use events. The sizing and design of a on-site sewage
system component is based on the design flow.
Development - (answers)The creation of a residence, structure, facility,
subdivision, area, or similar activity resulting in the production of sewage.
Disinfection - (answers)The process of destroying pathogens in sewage through
the application of chlorination, ultra-violent light, or ozonation.
Distribution Technology - (answers)any arrangement of equipment and/or
material that distributes sewage within and on-site sewage system.
Drainfield - (answers)subsurface soil absorption system, and soil dispersal
component
Drainrock - (answers)cleaned washed gravel or crushed rock ranging in size from
3/4" to 2.5", and containing no more than two percent by weight passing a US
No.8 sieve and no more than one percent by weight passing through a US No. 200
Sieve.
Effluent - (answers)liquid waste discharged to a septic tank or other on-site
sewage system
Septic Installer Test For Washington State
(WOSSA) EXAM Questions with 100%
Correct Answers | Verified | Updated
(Actual Exam)
ANSI - (answers)American National Standards Institute
BOD - (answers)biochemical oxygen demand, typically expressed in mg/L.
CBOD - (answers)Carbonaceous Biochemical Oxygen Demand, expressed in mg/L.
FC - (answers)Fecal Coliform, expressed in number of colonies 100/ml.
LOSS - (answers)large on-site sewage system
NSF - (answers)Nation Sanitation Foundation International
O&G - (answers)Oils and Grease, component of sewage typically originating from
food stuffs (animal fats of vegetable oils) expressed in mg/L.
RS&G - (answers)Recommended Standards and Guidance
SSAS - (answers)a subsurface soil absorption system
, 2
TAC - (answers)Technical Advisory Committee established in WAC 247-272A-0400
TN - (answers)Total Nitrogen, expressed in mg/L.
TSS - (answers)Total Suspended Solids. A measure of the total suspended solids in
a given solution, expressed in mg/L.
USEPA - (answers)United States Environmental Protection Agency
Additive - (answers)a commercial product added to an on-site sewage system
intended to affect the performance or aesthetics of an on-site sewage system
Approved - (answers)Acceptable to the authority having jurisdiction. Local health
officer or the department
BED - (answers)a soil dispersal component consisting of an excavation with a
width greater than 3 feet
Building Sewer - (answers)that part of the horizontal piping of a drainage system
which starts from the end of the building drain and which receives the discharge
of the building drain and conveys it to a public sewer, private sewer, individual
sewage disposal system or other point of disposal. It begins two feet outside the
building wall and conveys sewage from the building drain to the remaining
portions of the on-site sewage system.
, 3
Cesspool - (answers)a covered hole or pit for receiving drainage or sewage, as
from a house allowing liquid to seep into the surronding rock or soil
Conforming System - (answers)an on-site sewage system of component meeting
rules of: New construction requirements
Approved and installed within previous requirements
Permitted by WAC-246-272A-0420
Cover Material - (answers)Soil placed over dispersal component, made up of
mineral material with no greater than 10% organic content. Cover may contain
organic surface material, an organic landscaper to help reduce and contain soil
erosion.
Cuts and Banks - (answers)a naturally occurring or artificially formed slope greater
than one hundred percent (forty-five degrees) and extending vertically at least
five from the toe of the slope to top of the slope.
Department - (answers)Washington State Department of Health
Designer - (answers)Person who matches site and soil characteristics with
approved components
Design Flow - (answers)Means the maximum volume of sewage a residence,
structure or other facility is estimated to generate in a twenty-four hour period. It
, 4
incorporates both an operating capacity and a surge capacity for the system
during periodic heavy use events. The sizing and design of a on-site sewage
system component is based on the design flow.
Development - (answers)The creation of a residence, structure, facility,
subdivision, area, or similar activity resulting in the production of sewage.
Disinfection - (answers)The process of destroying pathogens in sewage through
the application of chlorination, ultra-violent light, or ozonation.
Distribution Technology - (answers)any arrangement of equipment and/or
material that distributes sewage within and on-site sewage system.
Drainfield - (answers)subsurface soil absorption system, and soil dispersal
component
Drainrock - (answers)cleaned washed gravel or crushed rock ranging in size from
3/4" to 2.5", and containing no more than two percent by weight passing a US
No.8 sieve and no more than one percent by weight passing through a US No. 200
Sieve.
Effluent - (answers)liquid waste discharged to a septic tank or other on-site
sewage system
