Coast Guard still mystified by Puerto Rico spill

Coast Guard still mystified by Puerto Rico spill Coast Guard officials investigating an oil spill off the Southwest Coast of Puerto Rico say they have not discovered the source of the spill first sighted Sept. 2, but are continuing with clean-up efforts and trying to determine the full impact of the spill.
   Members of the unified command team of Coast Guard and other agencies, including the Puerto Rico Environmental Quality Board and Department of National and Environmental Resources, are searching the shoreline with shallow-draft vessels, and using local fishermen to locate oil in areas like the mangroves in the vicinity of Cayo Guayacan and the Borqueon Forest.
   Investigators are also trying to determine the full size of the spill and potential environmental impact.
   The Coast Guard said that so far, 350 cubic yards of material from the spill has been successfully recovered.