PRASA's Buenos Aires Community Sanitary Sewer System ( Buenos Aires Community SSS, an appurtenance of PRASA's Arecibo Regional Wastewater Treatment Plant) has reported sanitary sewer overflows (SSOs) to waters of the United States. PRASA's Buenos Aires SSS is an old system with many interconnections to the storm sewer system that has not been operating as required. The administrative compliance order requires PRASA, among other things, to: cease and desist of unauthorized discharges into surface waters, report EPA of all past unreported bypasses events, complete the tasks associated to the compliance plan submitted on October 20, 2010. The tasks associated to the compliance plan submitted by PRASA to EPA on October 20, 2010 shall provide for all the necessary repairs/replacement/unclogs to the Buenos Aires Community SSS that will correct the sanitary overflow situation.