Put the Following Events of Septic System Operation in the Correct

Multiple Choice

Put the following events of septic system operation in the correct order of occurrence:
I. Household sewage is piped into septic tank.
II. Wastewater containing suspended material flows into drain field.
III. Purified wastewater percolates into groundwater or evaporates from soil.
IV. Bacteria decompose organic material in well-aerated soil.
V. Heavy particles settle out of water and bacteria decompose grease and oil.

A) I - II - III - IV - V
B) I - V - II - IV - III
C) I - IV - III - V - II
D) I - III - V - II - IV
E) I - IV - III - II - V