Dept. of Trans.       AFTER ACCEPTANCE   Serial No.  Contract No.                       
                                          09-292-08-10  10-0L9504                       
                PROGRESS PAYMENT VOUCHER  %complete:   %time:                           
Location:                                 100%         100%                             
10-SJ-88-3.2/ .0                    Federal Project:                                    
                                     ACHS-PO88(50)                                      
                             STPG-PO88(50)                                              
                             HSIP-6210(88)                                              
Progress payment No. 06            Payment period ending: 10-07-09                      
COLUMBIA ELECTRIC INC                                                                   
1980 DAVIS STREET                                                                       
SAN LEANDRO CA 94577                                                                    
                                                                                        
                                                                                        
Escrow No.  00000                                                                       
                                    Total Estimate   This Estimate                      
1. Contract Itms Without Mobil.         286,203.97        5,964.05                      
2.a. Extra Work                                                                         
  b. Adjustment Comp.                    -5,717.45       -5,717.45                      
3. Materials on Hand                                                                    
4. Earned Subject to Retention          280,486.52          246.60                      
5. Mobilization                                                                         
6. Total Work Completed      280,486.52                                                 
7. Deductions                            -5,000.00       -5,000.00                      
8. a.Contract Retentions                                                                
   b. Unsatisfactory Prog.                                                              
   c. Reduction after 95% Comp.                                                         
9. Total pay to Contractor              275,486.52       -4,753.40                      
10. Reduction Amt to Escrow                                                             
11. Payment to Escrow             0.00                                                  
12. Net Pymt. this Estimate                              -4,753.40