NATURE OF THE CASE: HILLSBOROUGH COUNTY OWNS & OPERATES THE RIVER OAKS ADVANCED WWTP WHICH SERVICES A 125 SQUARE- MILE AREA NORTHWEST OF THE CITY OF TAMPA IN UNINCORPORATED HILLSBOROUGH COUNTY. THE RIVER OAKS PLANT THAT THIS CASE CONCERNS HAS HAD CONSISTENT EFFLUENT LIMITATION VIOLATIONS SINCE EARLY 1985, EVEN THOUGH AVG DAILY FLOWS AT THE PLANT HAVE BEEN AT ABOUT THE SAME LEVEL (5 MGD) SINCE 1981. THE RIVER OAKS PLANT IS UNDERGOING CONSTRUCTION TO EXPAND PLANT CAPACITY TO ABOUT 10 MGD. CONSTRUCTION DISRUPTIONS, LACK OF SPRAY IRRIGATION LAND DISPOSAL CAPACITY, LACK OF PROPER OP- ERATION & MAINTENANCE MEASURES, & LACK OF INTERIM IMPROVE- MENTS DURING CONSTRUCTION, HAVE CAUSED THE VIOLATIONS.