Dept. of Trans.       PROGRESS   Serial No.  Contract No.                               
                                          06-139-14-08  04-449604                       
                PROGRESS PAYMENT VOUCHER  %complete:   %time:                           
Location:                                   1%           4%                             
04-SOL-80-R9.8/ .0                    Federal Project:                                  
                                     ACIM-080-2(348)                                    
                                                                                        
                                                                                        
Progress payment No. 01            Payment period ending: 05-20-06                      
DRILL TECH DRILLING AND                                                                 
SHORING INC                                                                             
2200 WYMORE WAY                                                                         
ANTIOCH CA 94509                                                                        
                                                                                        
Escrow No.  00000                                                                       
                                    Total Estimate   This Estimate                      
1. Contract Itms Without Mobil.          71,412.50       71,412.50                      
2.a. Extra Work                                                                         
  b. Adjustment Comp.                                                                   
3. Materials on Hand                                                                    
4. Earned Subject to Retention           71,412.50       71,412.50                      
5. Mobilization                                                                         
6. Total Work Completed       71,412.50                                                 
7. Deductions                                                                           
8. a.Contract Retentions                                                                
   b. Unsatisfactory Prog.                                                              
   c. Reduction after 95% Comp.                                                         
9. Total pay to Contractor               71,412.50       71,412.50                      
10. Reduction Amt to Escrow                                                             
11. Payment to Escrow             0.00                                                  
12. Net Pymt. this Estimate                              71,412.50