University of Illinois Extension

Quiz

Section 905.90 — Waste Stabilization Ponds

  1. Section 905.90 — Waste Stabilization Ponds
    Incorrect. The correct answer is highlighed in green below.

    When preceeded by a Class II aerobic treatment plant, the capacity of a waste stabilization pond must be   times the average daily flow.
    1. 18
      (905.90-c) Capacity. When domestic sewage from a septic tank is to be discharged to the waste stabilization pond, the capacity of the pond shall be equivalent to 60 times the average daily flow. When preceded by a Class II aerobic treatment plant, the capacity of the pond shall be equivalent to 18 times the average daily flow.
    2. 180
    3. 6
    4. 60
  2. Section 905.90 — Waste Stabilization Ponds
    Incorrect. The correct answer is highlighed in green below.

    Inlet lines shall be placed 12 to 24 inches above the   of the pond.
    1. Top
    2. Bottom
      (905.90-g) Inlet. The inlet line shall be placed 12 to 24 inches above the bottom of the pond at a point opposite the overflow structure and shall be supported at no greater than 10 foot intervals along its length. It shall discharge at least 10 feet from the water's edge. The inlet line shall be sloped in accordance with Section 905.20(g).
    3. Mid point
    4. Freeze line
  3. Section 905.90 — Waste Stabilization Ponds
    Incorrect. The correct answer is highlighed in green below.

    Surface water near waste stabilization ponds shall be:
    1. Included in sizing for the pond
    2. Drained by field tile
    3. Diverted from the pond
      (905.90-j) Drainage. All surface water shall be diverted away from the waste stabilization pond.
    4. Treated with chlorine