9/15/2011 - ADMINISTRATIVE ORDER ISSUED.
ON MARCH 29, 2011, EPA AND SCDHEC PERFORMED A COMPLIANCE STORMWATER EVALUATION INSPECTION (CSWEI) AT THE DEVELOPMENT TO EVALUATE THE TREATMENT AND DISPOSAL OR STORMWATER.
DURING THE CSWEI, THE FOLLOWING WAS OBSERVED:
A. SILT FENCING WAS IMPROPERLY INSTALLED AND MAINTAINED THROUGHOUT THE DEVELOPMENT. THE PERMIT REQUIRES BMPs BE PROPERLY SELECTED, IMPLEMENTED AND MAINTAINED TO MINIMIZE POLLUTANTS IN DISCHARGES. THE PERMIT REQUIRES MODIFICATION OF EXISTING BMPs OR ADD'L BMPs AS NECESSARY TO COMPLY WITH THE PERMIT OR WITH WATER QUALITY STANDARDS. SEDIMENT-LADEN STORMWATER UNDERCUT PORTIONS OF THE SILT FENCING, ALLOWING SEDIMENT TO DISCHARGE OFFSITE. THERE WERE ALSO HOLES IN SOME OF THE SILT FENCING ALLOWING ADD'L SEDIMENT TO DISCHARGE OFFSITE.
B. THE SEDIMENT TRAPS AND SEDIMENTATION POND SLOPES NEED TO BE MAINTAINED AND STABILIZED. THE PERMIT REQUIRES BMPsBE PROPERLY SELECTED, IMPLEMENTED AND MAINTAINED TO MINIMIZE POLLUTANTS IN DISCHARGES. THE PERMIT REQUIRES THE MODIFICATION OF EXISTING BMPs OR ADD'L BMPs AS NECESSARY TO COMPLY WITH THE PERMIT OR WITH WATER QUALITY STANDARDS.
C. A DITCH WAS CUT ALONG THE NEWLY-PAVED ROADWAY TO ALLOW STORMWATER TO FLOW DIRECTLY INTO THE SEDIMENT BASIN OUTFALL AND THEN OFFSITE. HOWEVER, STORMWATER FLOW IN THE DITCH BYPASSES BMPs DESIGNED TO TRAP SEDIMENT BEFORE FLOWING INTO A CULVERT AND OFFSITE INTO DAWSON BRANCH. THE PERMIT REQUIRES BMPs BE SELECTED, IMPLEMENTED, AND MAINTAINED TO ACHI