PS04 THE PURPOSE OF THIS MODIFICATION IS TO EXTEND THE PERIOD OF PERFORMANCE THROUGH OCTOBER 31, 2014. ADDITIONAL MATERIAL OF THE POLYMERIC SAND APPLICATION BETWEEN THE PAVERS ARE REQUIRED TO MAINTAIN THE PROPER SEAL. THE ADDED POLYMERIC MATERIAL APPLICATION AND PIECE OF PIPING TO SECURE THE CLEANOUT DRAIN WOULD COMPLETED THE PUNCHLIST ITEMS FOR THE ARRAJ COURTHOUSE BUILDING IN DENVER, COLORADO. Supplemental Agreement for work within scope $0 8/22/14 PS03 THE PURPOSE OF THIS MODIFICATION IS TO APPLY A POLYMERIC SAND COMPOUND TO THE SEPT JOINTS OF THE PAVERS AND PROVIDE ACCESS TO THE DRAIN CLEANOUTS ON THE EXTERIOR GROUNDS OF THE U.S. COURTHOUSE BUILDING IN DENVER, COLORADO. Supplemental Agreement for work within scope $17.6k 8/16/14 PS02 THE PURPOSE OF THIS MODIFICATION IS TO EXTEND THE PERIOD OF PERFORMANCE TO JULY 31, 2014 FOR WORK AT THE ARRAJ COURTHOUSE, DENVER, COLORADO. APPLICATION OF THE POLYMERIC SAND PLACED BETWEEN THE PAVERS REQUIRE A CONTINOUS 50 DEGREE TEMPERATURE OR ABOVE TO BE EFFECTIVE. THE EXTENDED DATE THROUGH THE SUMMER MONTHS ASSURES PROPER APPLICATION TO COMPLETED THAT PORTION OF WORK AND ALL OTHER REMAINING CONSTRUCTION. Supplemental Agreement for work within scope $0 4/1/14 PS01 THE PURPOPSE OF THIS MODIFICATION IS TO ADJUST THE ACCOUNTING AND APPROPRIATION DATA FOR CONTRACT LINE ITEM NUMBER (CLIN) 4002 AND EXERCISE THE OPTION UNDER CLIN 4002A FOR THE ARRAJ U.S. COURTHOUSE IN DENVER, COLORADO. THE PERIOD OF PERFORMANCE IS EXTENDED FROM JANUARY 31, 2013 TO MARCH 31, 2014 FOR THE ADDED SCOPE WORK UNDER CLIN 4002A. Supplemental Agreement for work within scope $46.1k 9/26/13 Not listed CONSTRUCTION PROJECT TO REMOVE, REGRADE, REINSTALL THE PAVERS AND REMOVE COLUMN COVERS TO REPAIR AND WATERPROOF THEM AT THE ALFRED A. ARRAJ U.S. COURTHOUSE, DENVER, CO. Not listed $122.0k 9/20/13