Dept. of Trans.       AFTER ACCEPTANCE   Serial No.  Contract No.                       
                                          08-011-10-44  11-281104                       
                PROGRESS PAYMENT VOUCHER  %complete:   %time:                           
Location:                                 100%         100%                             
11-IMP-111-23.9/40.5                    Federal Project:                                
                                     NONE                                               
                                                                                        
                                                                                        
Progress payment No. 04            Payment period ending: 12-19-07                      
INTERNATIONAL SURFACING                                                                 
SYSTEMS                                                                                 
P O BOX 4770                                                                            
MODESTO CA 95352                                                                        
                                                                                        
Escrow No.  00000                                                                       
                                    Total Estimate   This Estimate                      
1. Contract Itms Without Mobil.         574,132.52            0.00                      
2.a. Extra Work                           2,367.08            0.00                      
  b. Adjustment Comp.                       985.21      -12,469.14                      
3. Materials on Hand                                                                    
4. Earned Subject to Retention          577,484.81      -12,469.14                      
5. Mobilization                          35,427.00            0.00                      
6. Total Work Completed      612,911.81                                                 
7. Deductions                           -11,000.00       12,969.14                      
8. a.Contract Retentions                -29,497.70            0.00                      
   b. Unsatisfactory Prog.                                                              
   c. Reduction after 95% Comp.          29,497.70       29,497.70                      
9. Total pay to Contractor              601,911.81       29,997.70                      
10. Reduction Amt to Escrow                                                             
11. Payment to Escrow             0.00                                                  
12. Net Pymt. this Estimate                              29,997.70