NM CID MS-3 Practice Questions - New Mexico CID MS-3 Cesspools, Septic Tanks And Sewers Examination Exam

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The minimum bottom area of an evapotranspiration bed is A = 391 × Q ÷ EL, where Q is design flow in gpd and EL is average annual lake evaporation in inches. The bed depth shall be:

12 to 18 inches 24 to 30 inches from the bottom to the overflow level 4 to 6 feet, like a conventional trench Any depth if the liner is 20 mils

Correct Answer:

24 to 30 inches from the bottom to the overflow level

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