A DEVELOPER AND ITS CONTRACTOR CONSTRUCTED THREE ARCHED CULVERTS OVER A TRIBUTARY TO HINKSON CREEK, AND DISCHARGED CONCRETE INTO THE TRIBUTARY IN THE CONSTRUCTION. THEY ALSO PLACED A CONCRETE BLANKET AROUND A RETAINING WALL AND WITHIN THE CREEK. THESE ACTIONS, DISCHARGING POLLUTANTS INTO A WATER OF THE US, WERE PERFORMED WITHOUT A CWA 404 PERMIT, AS REQUIRED UNDER THE LAW. THE SAME PARTIES ALSO FAILED TO COMPLY WITH THEIR NPDES PERMIT AND FAILED TO MAINTAIN STORM INLET PROTECTION DEVICES SUCH AS SILT FENCES AND CONCRETE DAM CONTROLS. THEY ALSO FAILED TO IPLEMENT THEIR STORM WATER POLLUTION PREVENTION PLAN IN ACCORDANCE TO THE SCHEDULE AND FAILED TO INSPECT ON SCHEDULE.