3 COLO 203619 COLONIAL NATIONAL HISTORIC PARK, REPAIR OF SINKHOLES ALONG THE COLONIAL PARKWAY, YORK COUNTY, VIRGINIA THE PURPOSE OF THIS MODIFICATION IS TO EXTEND THE PERIOD OF PERFORMANCE OF THIS TASK ORDER. AS A RESULT, THE PERIOD OF PERFORMANCE SHALL BE REVISED FROM DECEMBER 31, 2014 TO JUNE 1, 2015. Supplemental Agreement for work within scope $0 5/15/15 2 COLO 203619 COLONIAL NATIONAL HISTORIC PARK, REPAIR OF SINKHOLES ALONG THE COLONIAL PARKWAY, YORK COUNTY, VIRGINIA THE PURPOSE OF THIS MODIFICATION IS TO EXTEND THE PERIOD OF PERFORMANCE OF THIS TASK ORDER. AS A RESULT, THE PERIOD OF PERFORMANCE SHALL BE REVISED FROM DECEMBER 5, 2014, TO DECEMBER 31, 2014. Supplemental Agreement for work within scope $0 12/19/14 1 COLO 203619 COLONIAL NATIONAL HISTORIC PARK, REPAIR OF SINKHOLES ALONG THE COLONIAL PARKWAY, YORK COUNTY, VIRGINIA MOD 0001 - THE PURPOSE OF THIS MODIFICATION IS TO INCORPORATE AN ADDITIONAL 300 LF OF EXTENDED SINKHOLE REPAIRS AT K8. AS A RESULT, THE PERIOD OF PERFORMANCE SHALL BE REVISED FROM MARCH 30, 2014, TO DECEMBER 5, 2014. THE CONTRACTOR SHALL SUPPLY ALL LABOR, MATERIALS, EQUIPMENT, AND SUPERVISION TO ACCOMPLISH THE WORK AS DESCRIBED IN THE ATTACHED REVISED STATEMENT OF WORK (36 PAGES), WHICH IS HEREBY DELETED AND REPLACED IN ITS ENTIRETY, AND INCORPORATED AS A PART OF THIS CONTRACT. Supplemental Agreement for work within scope $36.8k 7/30/14 Not listed COLO 203619 COLONIAL NATIONAL HISTORIC PARK, REPAIR OF SINKHOLES ALONG THE COLONIAL PARKWAY, YORK COUNTY, VIRGINIA ITEMS ACCEPTED: BASE CONTRACT LINE ITEMS 0001 THROUGH 0005; REQUEST FOR PROPOSAL AND SOLICITATION REQUIREMENTS, CONTRACT FORMS AND CONDITIONS OF THE CONTRACT ISSUED SEPTEMBER 9, 2013; INITIAL PROPOSAL DATED SEPTEMBER 16, 2013, AND PROPOSAL REVISIONS DATED SEPTEMBER 18, 2013, AND SEPTEMBER 20, 2013. Not listed $195.0k 9/20/13