| 5 | | Supplemental Agreement for work within scope | $0 | 7/29/11 |
| 4 | | Supplemental Agreement for work within scope | $0 | 5/31/11 |
| 3 | | Definitize Change Order | $1.4m | 3/1/11 |
| 2 | | Supplemental Agreement for work within scope | $2.1m | 11/8/10 |
| 1 | | Supplemental Agreement for work within scope | $0 | 7/26/10 |