Step 3 - Answers

Here's how the Mechanical Equipment Calculator should look, once you've entered all information and clicked Calculate:

Graphic: Program window snapshot

Here's how the Calculator should look, once you've entered information about the ACRU2 (Questions 4 and 5):

Graphic: Program window snapshot

Answers

  1. About how much oil could the Sandpiper recover during the operational period? Your best estimate of this amount is the amount of oil and emulsion recovered ("Oil/emul. recov."), which is 15 barrels. Because some of this volume is water mixed with oil in an emulsion, this number may be an overestimate.
  2. What percentage of the total volume of the slick is this? This is the amount of oil and emulsion recovered, 15 barrels, divided by the total amount in the slick, 1000 barrels, multiplied by 100%: (15 bbl/1000 bbl) * 100% = 1.5%
  3. Is skimming with the Sandpiper a realistic option, given the time you have available? By skimming with the Sandpiper, you would be able to recover only a very small amount of the spilled oil. Using this response option may not be worth the expense.
  4. What if you also were able to assign the ACRU2 to help skim the slick--about how much oil could the two platforms recover during the operational period? Your best estimate is the sum of the amount of oil and emulsion recovered by each platform: 415 barrels + 15 barrels = 430 barrels of oil and emulsion.
  5. About what percentage of that oil would be skimmed by the ACRU2? This is the amount recovered by the ACRU2, 415 barrels, divided by the total amount recovered, 430 barrels, multiplied by 100%: (415 / 430) * 100% = 97%.

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Scenario | Step 1 | Step 2 | Step 3

Revised: April 16, 2001
Office of Response and Restoration, National Ocean Service, National Oceanic and Atmospheric Administration