Could it be attributed to the supposed lack of waste water treatment fix (adding secondary treatment) that was supposed to be ongoing and completed by 2010 per the settlement with the EPA?  In addition, there were other improvements that were suppose to be done to minimize run off and raw sewage spills.  Perhaps the EPA needs to follow up on the status of fix(s).  Thinking out loud, perhaps an environmental group could file a "temporary" injunction on the use of our beaches. This should be imposed for the safety of all beach goers (domestic or otherwise) as it could have serious consequences to our tourist trade.  I believe there is a Federal Judge that will rule in favor.  In the meantime, we can investigate if our offshore discharge of sewage is contributing to the increased "...spike in an “indicator bacteria” in the waters off Sans Souci Beach that could lead to diarrhea and vomiting." Just saying...