CONTRACT PURCHASE ORDER In accordance with the contract between the Contractor and the Texas Comptroller of Public Accounts

         Agency to Invoice    
      TX DEPT OF TRANSPORTATION            60121     Purchase Order Number  3 0 1 8 9 9
      P.O. BOX 1717                        001                 Requisition  60115-0-5758
      PHARR              TX 78577-1717
                                                                            10/16/09         1


         Destination if Different  
      TX DEPT OF TRANSPORTATION            60121
      600 WEST U. S. 83 EXPRESSWAY         002
      PHARR TX 78577

THE STATE OF TEXAS IS EXEMPT FROM ALL FEDERAL EXCISE TAXES

STATE AND CITY SALES TAX EXEMPTION CERTIFICATE:
The State of Texas claims an exemption from
taxes under Texas Tax Code § 151.309(4),
for purchase of tangible personal property
described in this numbered order, purchased
from contractor and/or shipper listed here,
as this property is being secured for the
exclusive use of the State of Texas.

84947

         Contractor
 VID#: 1-74-276-8918-1  COMP
 AIRGAS-SOUTHWEST INC
 11111 N LAMAR
 ATTN: BILL TINKHAM
 AUSTIN TX 78753

              FOR AGENCY USE ONLY:  WR# 213090210000342323


                      **** ENTERED BY SAL SALAZAR      ****
              CONTACT AT AGENCY: SAL SALAZAR, PHONE: 210-615-5955
              PAYMENT CONTACT: SANDRA DIAZ, PHONE: 210-615-5942
              VENDOR CONTACT: BILL TINKHAM, PHONE: 512-799-8145

                   Description                                  Quantity  Unit      Unit    Extended
                                                                                   Price      Amount

      430-21  GASES: 214, STARR CO.,  GASES FOR HOSPITAL,
               LABORATORY AND WELDING USE.  FOR ALL QUALIFIED
               ENTITIES WITHIN THE COUNTY NOT OTHERWISE
               IDENTIFIED

     49005-7  ACETYLENE, 360 CU. FT. CYL.                           4320  CUFT       .19      820.80

     49035-4  OXYGEN, IND. 251 CU. FT. CYL.                         3012  CUFT       .03       90.36

              DELIVERY IN   5 DAYS.

                                                                   TOTAL THIS ORDER          $911.16