The Obama adminstration continues their long running habit of underestimating the severity and impact of the spill, only to be corrected by independent scientists. First they underestimated the rate of the spill , the toxicity of the dispersants, and denied the existence of underwater plumes before claiming the oil was gone.
The complete Georgia Sea Grant/University of Georgia Oil Spill report is available online at http://uga.edu/aboutUGA/joye_pkit/GeorgiaSeaGrant_OilSpillReport8-16.pdf
Figures from the report are available at http://uga.edu/aboutUGA/joye_pkit/GeorgiaSeaGrant_OilChart.pdf.