| 7 | | Supplemental Agreement for work within scope | $0 | 10/31/13 |
| 6 | | Supplemental Agreement for work within scope | $0 | 8/7/13 |
| 5 | | Supplemental Agreement for work within scope | $0 | 3/25/13 |
| 4 | | Supplemental Agreement for work within scope | $0 | 12/19/12 |
| 3A | | Change PIID | $0 | 11/6/12 |