EXAM) WITH CORRECT ACTUAL
QUESTIONS AND CORRECTLY WELL
DEFINED ANSWERS LATEST ALREADY
When drop boxes are required they shall be surrounded and
stabilized by at least _____ ft of undisturbed or manually
compacted earth. - ANSWERS-2ft
shall be at least _____ft of earthen buffer between the
septic tank and all portions of adjacent wastewater
infiltration trenches. - ANSWERS-2 ft
The bottom of each infiltration trench, including the
distribution pipe contained within, shall be - ANSWERS-as
level as possible, with an elevation differential not to exceed
2 inches throughout the the trench run.
,When the pump tank must be located in an area
characterized by a shallow zone of saturation, the
Department may require the use of... - ANSWERS-a precast
manhole, a fiberglass or polyethylene basin, or any other
acceptable method for preventing groundwater intrusion.
Tier 1 - ANSWERS-Tier ___ May install all gravity-fed
residential onsite wastewater systems. This level is not
authorized to conduct repairs on existing onsite wastewater
systems.
Tier 2 - ANSWERS-Tier ___ May install all Tier 1 systems plus
pumps, grease traps, systems with curtain drains, elevated
infiltration systems, mounded systems, and all commercial
onsite wastewater systems, large onsite wastewater
systems, and community onsite wastewater systems. This
level is also authorized to conduct repairs on existing onsite
wastewater systems
Tier 3 - ANSWERS-Tier ___ May install all Tier 1 and 2
systems plus all Standard 610 - Specialized Onsite
Wastewater Systems. This level is also authorized to conduct
repairs on existing onsite wastewater systems.
,Long-Term Acceptance Rate (LTAR) - ANSWERS-The long-
term rate, typically expressed in gallons per day (gpd) per
square foot of trench bottom area, at which a mature onsite
wastewater system can continue to accept effluent without
hydraulic failure occurring. This flow rate is a result of the
interaction between unsaturated soil hydraulic conductivity
and biomat resistance.
Mottling - ANSWERS-Morphological features of the soil
revealed as spots or blotches of different color or shades of
color interspersed with the dominant matrix color
NSF Standard #14 - ANSWERS-A National Sanitation
Foundation Standard relating to thermoplastics which have
been tested and found satisfactory for potable water supply
uses, drains, waste, and vent applications
Nonwater-Carried Sewage Treatment System - ANSWERS-A
self-contained system for waste treatment (such as a
biological, composting, or incinerating toilet) that stores,
treats, and renders human urine and feces inert without the
use of water and that is designed to not discharge into the
soil, onto the soil surface, into bodies of water, or other
external media.
, Onsite Wastewater (OSWW) System - ANSWERS-system,
generally consisting of a collection sewer, septic tank(s), and
subsurface wastewater infiltration area, designed to treat
and dispose of domestic wastewater through a combination
of natural processes that ultimately result in effluent being
transmitted through the soil, renovated, and ultimately
discharged to groundwater. An onsite wastewater system
shall also include an onsite wastewater system, as described
above, for the treatment and disposal of gray water
Small Onsite Wastewater System - ANSWERS-An individual
system serving an individually deeded dwelling or business
that generates less than fifteen hundred (1500) gpd of
domestic wastewater. Management and maintenance of
each system is the responsibility of the individual property
owner
Large Onsite Wastewater System (General) - ANSWERS-An
individual system that treats and disposes of domestic
wastewater discharges in excess of fifteen hundred (1500)
gpd.
Privately Owned Large System - ANSWERS-A large onsite
wastewater collection and treatment system that serves one
(1) piece of deeded property such as a school, adult
QUESTIONS AND CORRECTLY WELL
DEFINED ANSWERS LATEST ALREADY
When drop boxes are required they shall be surrounded and
stabilized by at least _____ ft of undisturbed or manually
compacted earth. - ANSWERS-2ft
shall be at least _____ft of earthen buffer between the
septic tank and all portions of adjacent wastewater
infiltration trenches. - ANSWERS-2 ft
The bottom of each infiltration trench, including the
distribution pipe contained within, shall be - ANSWERS-as
level as possible, with an elevation differential not to exceed
2 inches throughout the the trench run.
,When the pump tank must be located in an area
characterized by a shallow zone of saturation, the
Department may require the use of... - ANSWERS-a precast
manhole, a fiberglass or polyethylene basin, or any other
acceptable method for preventing groundwater intrusion.
Tier 1 - ANSWERS-Tier ___ May install all gravity-fed
residential onsite wastewater systems. This level is not
authorized to conduct repairs on existing onsite wastewater
systems.
Tier 2 - ANSWERS-Tier ___ May install all Tier 1 systems plus
pumps, grease traps, systems with curtain drains, elevated
infiltration systems, mounded systems, and all commercial
onsite wastewater systems, large onsite wastewater
systems, and community onsite wastewater systems. This
level is also authorized to conduct repairs on existing onsite
wastewater systems
Tier 3 - ANSWERS-Tier ___ May install all Tier 1 and 2
systems plus all Standard 610 - Specialized Onsite
Wastewater Systems. This level is also authorized to conduct
repairs on existing onsite wastewater systems.
,Long-Term Acceptance Rate (LTAR) - ANSWERS-The long-
term rate, typically expressed in gallons per day (gpd) per
square foot of trench bottom area, at which a mature onsite
wastewater system can continue to accept effluent without
hydraulic failure occurring. This flow rate is a result of the
interaction between unsaturated soil hydraulic conductivity
and biomat resistance.
Mottling - ANSWERS-Morphological features of the soil
revealed as spots or blotches of different color or shades of
color interspersed with the dominant matrix color
NSF Standard #14 - ANSWERS-A National Sanitation
Foundation Standard relating to thermoplastics which have
been tested and found satisfactory for potable water supply
uses, drains, waste, and vent applications
Nonwater-Carried Sewage Treatment System - ANSWERS-A
self-contained system for waste treatment (such as a
biological, composting, or incinerating toilet) that stores,
treats, and renders human urine and feces inert without the
use of water and that is designed to not discharge into the
soil, onto the soil surface, into bodies of water, or other
external media.
, Onsite Wastewater (OSWW) System - ANSWERS-system,
generally consisting of a collection sewer, septic tank(s), and
subsurface wastewater infiltration area, designed to treat
and dispose of domestic wastewater through a combination
of natural processes that ultimately result in effluent being
transmitted through the soil, renovated, and ultimately
discharged to groundwater. An onsite wastewater system
shall also include an onsite wastewater system, as described
above, for the treatment and disposal of gray water
Small Onsite Wastewater System - ANSWERS-An individual
system serving an individually deeded dwelling or business
that generates less than fifteen hundred (1500) gpd of
domestic wastewater. Management and maintenance of
each system is the responsibility of the individual property
owner
Large Onsite Wastewater System (General) - ANSWERS-An
individual system that treats and disposes of domestic
wastewater discharges in excess of fifteen hundred (1500)
gpd.
Privately Owned Large System - ANSWERS-A large onsite
wastewater collection and treatment system that serves one
(1) piece of deeded property such as a school, adult
