Dept. of Trans.       FINAL   Serial No.  Contract No.                                  
                                          07-197-11-44  04-1A3804                       
                PROGRESS PAYMENT VOUCHER  %complete:   %time:                           
Location:                                 100%         100%                             
04-SOL-0-0.0/ .0                    Federal Project:                                    
                                     NONE                                               
                                                                                        
                                                                                        
Progress payment No. 15            Payment period ending: 03-09-07                      
RELIABLE TREE EXPERTS                                                                   
2960 CHAPMAN STREET                                                                     
OAKLAND CA 94601                                                                        
                                                                                        
                                                                                        
Escrow No.  00000                                                                       
                                    Total Estimate   This Estimate                      
1. Contract Itms Without Mobil.         919,600.00            0.00                      
2.a. Extra Work                          26,864.69            0.00                      
  b. Adjustment Comp.                    13,000.00            0.00                      
3. Materials on Hand                                                                    
4. Earned Subject to Retention          959,464.69            0.00                      
5. Mobilization                          30,000.00            0.00                      
6. Total Work Completed      989,464.69                                                 
7. Deductions                                                                           
8. a.Contract Retentions                -46,306.36            0.00                      
   b. Unsatisfactory Prog.                                                              
   c. Reduction after 95% Comp.          46,306.36            0.00                      
9. Total pay to Contractor              989,464.69            0.00                      
10. Reduction Amt to Escrow                                                             
11. Payment to Escrow             0.00                                                  
12. Net Pymt. this Estimate                                   0.00