Dept. of Trans.       PROGRESS   Serial No.  Contract No.                               
                                          06-265-14-56  11-080004                       
                PROGRESS PAYMENT VOUCHER  %complete:   %time:                           
Location:                                  90%          98%                             
11-SD-8-R36.5/ .0                    Federal Project:                                   
                                     ACIM-008-1(300)                                    
                                                                                        
                                                                                        
Progress payment No. 12            Payment period ending: 09-20-06                      
TRUESDELL CORPORATION OF                                                                
CALIFORNIA INC                                                                          
3529 E WOOD STREET                                                                      
PHOENIX AZ 85040                                                                        
                                                                                        
Escrow No.  00000                                                                       
                                    Total Estimate   This Estimate                      
1. Contract Itms Without Mobil.       3,684,893.78      214,164.30                      
2.a. Extra Work                         517,398.85       44,666.44                      
  b. Adjustment Comp.                                                                   
3. Materials on Hand                     20,029.88       -1,862.79                      
4. Earned Subject to Retention        4,222,322.51      256,967.95                      
5. Mobilization                         263,400.00            0.00                      
6. Total Work Completed    4,465,692.63                                                 
7. Deductions                           -53,802.50        7,635.00                      
8. a.Contract Retentions                                                                
   b. Unsatisfactory Prog.                                                              
   c. Reduction after 95% Comp.                                                         
9. Total pay to Contractor            4,431,920.01      264,602.95                      
10. Reduction Amt to Escrow                                                             
11. Payment to Escrow             0.00                                                  
12. Net Pymt. this Estimate                             264,602.95