on site sewage Questions with Verified
Answers
What role does soil play in on-site sewage treatment systems? - ANSWERSIt treats
wastewater by filtering out particles, removing some chemicals and nutrients, and acting
as a site for destroying pathogens
What does a soil morphology tell us? - ANSWERSdeals with the description, using
standard terminology, of in situ spatial organization and physical properties of soil
What does color tell us about a soil? - ANSWERSproduced by the minerals present and
by the organic matter content. Yellow or red soil indicates the presence of oxidized ferric
iron oxides. Dark brown or black color in soil indicates that the soil has a high organic
matter content.
What % of clay in soil generally makes it unsuitable for a soil absorption system? -
ANSWERS
There are two types of clays; expandable clays and non-expandable clays. Which one
is a provisionally suitable soil? - ANSWERSnon-expandable
What is soil structure, and what does it affect? - ANSWERSIn many soils, the sand, silt
and clay particles tend to cling or stick to one another to form a ped or a clump of soil.
it has a significant effect on the movement of effluent through a soil
In what soils is structure not important? - ANSWERSin soil groups I and II
What soil colors indicate good soil aeration? - ANSWERSreds, yellows and browns
What is a seasonal high water table? - ANSWERSsoil areas that give good sewage
absorption rates during dry seasons of the year but force sewage effluent to the surface
during the wetter seasons
If there is greater than 50% of rock fragments in a soil that overlays permeable bedrock,
is that soil suitable for an absorption type system? - ANSWERSunsuitable
A grayish color soil indicates what? - ANSWERSvolume of grayish color is indicative of
the length of time that free water stands in that soil profile
Answers
What role does soil play in on-site sewage treatment systems? - ANSWERSIt treats
wastewater by filtering out particles, removing some chemicals and nutrients, and acting
as a site for destroying pathogens
What does a soil morphology tell us? - ANSWERSdeals with the description, using
standard terminology, of in situ spatial organization and physical properties of soil
What does color tell us about a soil? - ANSWERSproduced by the minerals present and
by the organic matter content. Yellow or red soil indicates the presence of oxidized ferric
iron oxides. Dark brown or black color in soil indicates that the soil has a high organic
matter content.
What % of clay in soil generally makes it unsuitable for a soil absorption system? -
ANSWERS
There are two types of clays; expandable clays and non-expandable clays. Which one
is a provisionally suitable soil? - ANSWERSnon-expandable
What is soil structure, and what does it affect? - ANSWERSIn many soils, the sand, silt
and clay particles tend to cling or stick to one another to form a ped or a clump of soil.
it has a significant effect on the movement of effluent through a soil
In what soils is structure not important? - ANSWERSin soil groups I and II
What soil colors indicate good soil aeration? - ANSWERSreds, yellows and browns
What is a seasonal high water table? - ANSWERSsoil areas that give good sewage
absorption rates during dry seasons of the year but force sewage effluent to the surface
during the wetter seasons
If there is greater than 50% of rock fragments in a soil that overlays permeable bedrock,
is that soil suitable for an absorption type system? - ANSWERSunsuitable
A grayish color soil indicates what? - ANSWERSvolume of grayish color is indicative of
the length of time that free water stands in that soil profile
