... much on the thickness of the oil, type of oil, surface type, andmany other factors.**This is the percentage of oil in the recovered product. The higher the value, the lower the amount of water ... much on the thickness of the oil, type of oil, sea state,and many other factors.**This is the percentage of oil in the recovered product. The higher the value, the less the amount of water ... on the amount of oil spilled, sea and weather conditions, and the geo-graphical location of the spill. Alternative methods for treating oil directly on water are discussed in Chapters9 and 10. ...