Dept. of Trans.       SUPPLEMENTAL   Serial No.  Contract No.                           
                                          11-089-15-55  07-272604                       
                PROGRESS PAYMENT VOUCHER  %complete:   %time:                           
Location:                                  90%         100%                             
07-VEN-101-R33.2/R34.7                    Federal Project:                              
                                     NONE                                               
                                                                                        
                                                                                        
Progress payment No. 05            Payment period ending: 03-20-11                      
PIPENOLOGY INC                                                                          
4253 DULUTH AVENUE                                                                      
ROCKLIN CA 95765                                                                        
                                                                                        
                                                                                        
Escrow No.  00000                                                                       
                                    Total Estimate   This Estimate                      
1. Contract Itms Without Mobil.         335,264.00            0.00                      
2.a. Extra Work                          79,903.45       79,903.45                      
  b. Adjustment Comp.                                                                   
3. Materials on Hand                                                                    
4. Earned Subject to Retention          415,167.45       79,903.45                      
5. Mobilization                          30,000.00            0.00                      
6. Total Work Completed      445,167.45                                                 
7. Deductions                                                                           
8. a.Contract Retentions                                                                
   b. Unsatisfactory Prog.                                                              
   c. Reduction after 95% Comp.                                                         
9. Total pay to Contractor              445,167.45       79,903.45                      
10. Reduction Amt to Escrow                                                             
11. Payment to Escrow             0.00                                                  
12. Net Pymt. this Estimate                              79,903.45