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Gateway BP(3.1)-LR071022 Rone Engineering Client: Transwestern Commercial Services 5001 Spring Valley Dallas, TX 75244 8908 Ambassador Row, Dallas, TX 75247 7701 W Little York, Ste 600, Houston, TX 77040 4421 Freidrich, Ste 195, Austin, TX 78744 Corporate Phone: (214) 630-9745 Report of Concrete Compressive Strength Test Report No.: 296560 Project No.: 0712786 Date of Service: 08/23/2007 Report Date: 10/22/2007 Project: Gateway Business Center Coppell, Texas Services: Obtain samples of fresh concrete at the placement locations, perform required testing, cast compressive strength samples and bring samples back to the laboratory for curing and testing in accordance with applicable standards. Contractor: Constructors & Associates Concrete Supplier: Redi-Mix Plant: 88 Specification Requirements Strength: 3,600 psi @ 28 days Slump (in.): 4" - 6" Air (%): 3% - 5% Test Method: ASTM C-172 ASTM C-31 (except 10.1.2) ASTM C-143 ASTM C-231 ASTM C-1064 ASTM C-138 ASTM C-39 PROJECT DATA Mix Design 1.0.: 1524 Placement Date: 08/23/2007 Weather Conditions: Clear, warm Time Sampled: 03:50pm Batch time: 03:03pm Temperature - Air: 760F Concrete: 860F Truck No: 1219 Ticket No: 88053502 Air Content: 4.6% Unit Weight (pet): NA Overall Placement Location: Paving, parking lot, elevation 525.70,526.50,527.30,527.70 Measured Slump (inches) 5.5 Sample Location: Same as above REPORT OF TESTS Concrete Compressive Cylinder 6" x 12" Cylinder Maximum Compressive Marked Date Age Diameter Area Load Strength Fracture Set No. Tested (days) (in) (in') (Ibs) (psi) Type 1 1 08/30/2007 7 6.00 28.27 83,230 2,940 Unbonded Cap 1 2 09/20/2007 28 6.00 28.27 97,230 3,440 Shear 1 3 09/20/2007 28 6.00 28.27 99,600 3,520 Cone/Split Average 3,480 * 1 4 10/18/2007 56 6.00 28.27 107,180 3,790 Cone/Shear * Does not comply with specified strength LIMITATIONS: The test results presented herein were prepared based upon the specific samples provided for testing. We assume no responsibility for variation in quality (composition, appearance, etc.) or any other feature of similar subject matter provided by persons or conditions over which we have no control. Our letters and reports are for the exclusive use of the clients to whom they are addressed and shall not be reproduced except in full without the written approval of Rone Engineering Services, Ltd. (TM/JC) Page 1 of 5 Rone Engineering . Client: Transwestern Commercial Services 5001 Spring Valley Dallas, TX 75244 8908 Ambassador Row, Dallas, TX 75247 7701 W Little York, Ste 600, Houston, TX 77040 4421 Freidrich, Ste 195, Austin, TX 78744 Corporate Phone: (214) 630-9745 Report of Concrete Compressive Strength Test Report No.: 296560 Project No.: 0712786 Date of Service: 08/23/2007 Report Date: 10/22/2007 Project: Gateway Business Center Coppell, Texas Services: Obtain samples of fresh concrete at the placement locations, perform required testing, cast compressive strength samples and bring samples back to the laboratory for curing and testing in accordance with applicable standards. Contractor: Constructors & Associates Concrete Supplier: Redi-Mix Plant: 88 Specification Requirements Strength: 3,600 psi @ 28 days Slump (in.): 4" - 6" Air (%): 3% - 5% Test Method: ASTM C-172 ASTM C-31 (except 10.1.2) ASTM C-143 ASTM C-231 ASTM C-1064 ASTM C-138 ASTM C-39 PROJECT DATA Mix Design I.D.: 1524 Placement Date: 08/23/2007 Weather Conditions: Clear, warm Time Sampled: 05:11am Batch time: 04:29am Temperature - Air: 740F Concrete: 810F Truck No: 1219 Ticket No: 88053515 Air Content: 4.7% Unit Weight (pet): NA Overall Placement Location: Paving, parking lot, elevation 525.70, 526.50, 527.30, 527.70 Measured Slump (inches) 5.0 Sample Location: Same as above REPORT OF TESTS Concrete Compressive Cylinder 6" x 12" Cylinder Maximum Compressive Marked Date Age Diameter Area Load Strength Fracture Set No. Tested (days) (in) (in') (Ibs) (psi) Type 2 1 08/30/2007 7 6.00 28.27 79,400 2,810 Unbonded Cap 2 2 09/20/2007 28 6.00 28.27 100,590 3,560 Shear 2 3 09/20/2007 28 6.00 28.27 97,450 3,450 Cone/Split Average 3,500 * 2 4 10/18/2007 56 6.00 28.27 107,590 3,810 Cone/Shear * Does not comply with specified strength LIMITATIONS: The test results presented herein were prepared based upon the specific samples provided for testing. We assume no responsibility for variation in quality (composition, appearance, etc.) or any other feature of similar subject matter provided by persons or conditions over which we have no control. Our letters and reports are for the exclusive use of the clients to whom they are addressed and shall not be reproduced except in full without the written approval of Rone Engineering Services, Ltd. (TM/JC) Page 2 of 5 Client: Transwestern Commercial Services 5001 Spring Valley Dallas, TX 75244 8908 Ambassador Row, Dallas, TX 75247 7701 W Little York, Ste 600, Houston, TX 77040 4421 Freidrich, Ste 195, Austin, TX 78744 Corporate Phone: (214) 630-9745 Report of Concrete Compressive Strength Test Report No.: 296560 Project No.: 0712786 Date of Service: 08/23/2007 Report Date: 10/22/2007 Project: Gateway Business Center Coppell, Texas Services: Obtain samples of fresh concrete at the placement locations, perform required testing, cast compressive strength samples and bring samples back to the laboratory for curing and testing in accordance with applicable standards. Contractor: Constructors & Associates Concrete Supplier: Redi-Mix Plant: 88 Specification Requirements Strength: 3,600 psi @ 28 days Slump (in.): 4" - 6" Air (%): 3% - 5% Test Method: ASTM C-172 ASTM C-31 (except 10.1.2) ASTM C-143 ASTM C-231 ASTM C-1064 ASTM C-138 ASTM C-39 PROJECT DATA Mix Design I.D.: 1524 Placement Date: 08/23/2007 Weather Conditions: Clear, warm Time Sampled: 06:30am Batch time: 05:40am Temperature - Air: 750F Concrete: 880F Truck No: 1198 Ticket No: 88053523 Air Content: 5.3% Unit Weight (pcf): NA Overall Placement Location: Paving, parking lot, elevation 525.70, 526.50, 527.30, 527.70 Measured Slump (inches) 5.0 Sample Location: Same as above REPORT OF TESTS Concrete Compressive Cylinder 6" x 12" Cylinder Maximum Compressive Marked Date Age Diameter Area Load Strength Fracture Set No. Tested (days) (in) (in') (Ibs) (psi) Type 3 1 08/30/2007 7 6.00 28.27 90,320 3,190 Unbonded Cap 3 2 09/20/2007 28 6.00 28.27 119,550 4,230 Cone/Split 3 3 09/20/2007 28 6.00 28.27 108,680 3,840 Cone/Split Average 4,040 3 4 10/18/2007 56 6.00 28.27 120,250 4,250 Cone/Split LIMITATIONS: The test results presented herein were prepared based upon the specific samples provided for testing. We assume no responsibility for variation in quality (composition, appearance, etc.) or any other feature of similar subject matter provided by persons or conditions over which we have no control. Our letters and reports are for the exclusive use of the clients to whom they are addressed and shall not be reproduced except in full without the written approval of Rone Engineering Services, Ltd. (TM/JC) Page 3 of 5 Rone Engineering . Client: Transwestern Commercial Services 5001 Spring Valley Dallas, TX 75244 8908 Ambassador Row, Dallas, TX 75247 n01 W Little York, Ste 600, Houston, TX 77040 4421 Freidrich, Ste 195, Austin, TX 78744 Corporate Phone: (214) 630-9745 Report of Concrete Compressive Strength Test Report No.: 296560 Project No.: 0712786 Date of Service: 08/23/2007 Report Date: 10/22/2007 Project: Gateway Business Center Coppell, Texas Services: Obtain samples of fresh concrete at the placement locations, perform required testing, cast compressive strength samples and bring samples back to the laboratory for curing and testing in accordance with applicable standards. Contractor: Constructors & Associates Concrete Supplier: Redi-Mix Plant: 88 Specification Requirements Strength: 3,600 psi @ 28 days Slump (in.): 4" - 6" Air (%): 3% - 5% Test Method: ASTM C-172 ASTM C-31 (except 10.1.2) ASTM C-143 ASTM C-231 ASTM C-1064 ASTM C-138 ASTM C-39 PROJECT DATA Mix Design I.D.: 1524 Placement Date: 08/23/2007 Weather Conditions: Clear, warm Time Sampled: 08:10am Batch time: 07:07am Temperature - Air: 760F Concrete: 840F Truck No: 1046 Ticket No: 88053533 Air Content: 5.7% Unit Weight (pet): NA Overall Placement Location: Paving, parking lot, elevation 525.70, 526.50, 527.30, 527.70 Measured Slump (inches) 5.5 Sample Location: Same as above REPORT OF TESTS Concrete Compressive Cylinder 6" x 12" Cylinder Maximum Compressive Marked Date Age Diameter Area Load Strength Fracture Set No. Tested (days) (in) (in') (Ibs) (psi) Type 4 1 08/30/2007 7 6.00 28.27 96,910 3,430 Unbonded Cap 4 2 09/20/2007 28 6.00 28.27 116,210 4,110 Shear 4 3 09/20/2007 28 6.00 28.27 113,180 4,000 Shear Average 4,060 4 4 10/18/2007 56 6.00 28.27 118,930 4,210 Cone/Shear Remarks: Water added at site: 10 gallons LIMITATIONS: The test results presented herein were prepared based upon the specific samples provided for testing. We assume no responsibility for variation in quality (composition, appearance, etc.) or any other feature of similar subject matter provided by persons or conditions over which we have no control. Our letters and reports are for the exclusive use of the clients to whom they are addressed and shall not be reproduced except in full without the written approval of Rone Engineering Services, Lid. (TMIJC) Page 4 of 5 Rone Engineering .. Client: Transwestern Commercial Services 5001 Spring Valley Dallas, TX 75244 8908 Ambassador Row, Dallas, TX 75247 7701 W Little York, Ste 600, Houston, TX 77040 4421 Freidrich, Ste 195, Austin, TX 78744 Corporate Phone: (214) 630-9745 Report of Concrete Compressive Strength Test Report No.: 299092 Project No.: 0712786 Date of Service: 09/18/2007 Report Date: 10/22/2007 Project: Gateway Business Center Coppell , Texas Services: Obtain samples of fresh concrete at the placement locations, perform required testing, cast compressive strength samples and bring samples back to the laboratory for curing and testing in accordance with applicable standards. Contractor: Constructors & Associates Concrete Supplier: LMC Plant: 3 Specification Requirements Strength: 3,600 psi @ 28 days Slump (in.): 2" - 4" Air (%): NA Test Method: ASTM C-172 ASTM C-31 (except 10.1.2) ASTM C-143 ASTM C-231 ASTM C-1064 ASTM C-138 ASTM C-39 PROJECT DATA Mix Design I.D.: 1551 Placement Date: 09/18/2007 Weather Conditions: Sunny Time Sampled: 02:15pm Temperature - Air: 870F Truck No: 1111 Air Content: 3.5% Overall Placement Location: Inlet top outer Station 7+00 Batch time: 01 :39pm Concrete: 880F Ticket No: 3237018 Unit Weight (pet): NA Measured Slump (inches) 3.0 Sample Location: Same as above REPORT OF TESTS Concrete Compressive Cylinder 6" x 12" Cylinder Maximum Compressive Marked Date Age Diameter Area Load Strength Fracture Set No. Tested (days) (in) (in') (Ibs) (psi) Type 1 1 09/25/2007 7 6.00 28.27 99,460 3,520 Shear 1 2 10/16/2007 28 6.00 28.27 107,830 3,810 Cone/Split 1 3 10/16/2007 28 6.00 28.27 104,090 3,680 Cone/Split Average 3,750 1 4 11/13/2007 56 Remarks: Water added at site: 10 gallons LIMITATIONS: The test results presented herein were prepared based upon the specific samples provided for testing. We assume no responsibility for variation in quality (composition, appearance, etc.) or any other feature of similar subject matter provided by persons or conditions over which we have no control. Our letters and reports are for the exclusive use of the clients to whom they are addressed and shall not be reproduced except in full without the written approval of Rone Engineering Services, Ltd. (CH/JC) Page 1 of 2 Client: Transwestern Commercial Services 5001 Spring Valley Dallas, TX 75244 8908 Ambassador Row, Dallas, TX 75247 7701 W Little York, Ste 600, Houston, TX 77040 4421 Freidrich, Ste 195, Austin, TX 78744 Corporate Phone: (214) 630-9745 Report of Concrete Compressive Strength Test Report No.: 299208 Project No.: 0712786 Date of Service: 09/19/2007 Report Date: 10/22/2007 Project: Gateway Business Center Coppell, Texas Services: Obtain samples of fresh concrete at the placement locations, perform required testing, cast compressive strength samples and bring samples back to the laboratory for curing and testing in accordance with applicable standards. Contractor: Constructors & Associates Concrete Supplier: Redi-Mix Plant: 136 Specification Requirements Strength: 3,000 psi @ 28 days Slump (in.): 3" - 5" Air (%): NA Test Method: ASTM C-172 ASTM C-31 (except 10.1.2) ASTM C-143 ASTM C-231 ASTM C-1064 ASTM C-138 ASTM C-39 PROJECT DATA Mix Design I.D.: 830J1521 Placement Date: 09/19/2007 Weather Conditions: Cloudy, windy Time Sampled: 10:02am Batch time: 09:26am Temperature - Air: 800F Concrete: 870F Truck No: 1185 Ticket No: 13697316 Air Content: NA Unit Weight (pet): NA Overall Placement Location: Pier caps, canopy, building 1 Measured Slump (inches) 4.5 Sample Location: Same as above REPORT OF TESTS Concrete Compressive Cylinder 6" x 12" Cylinder Maximum Compressive Marked Date Age Diameter Area Load Strength Fracture Set No. Tested (days) (in) (in2) (Ibs) (psi) Type 1 1 09/26/2007 7 6.00 28.27 78,400 2,770 Cone/Split 1 2 10/17/2007 28 6.00 28.27 97,880 3,460 Cone/Split 1 3 10/17/2007 28 6.00 28.27 96,290 3,410 Cone/Split Average 3,430 1 4 11/14/2007 56 LIMITATIONS: The test results presented herein were prepared based upon the specific samples provided for testing. We assume no responsibility for variation in quality (composition, appearance, etc.) or any other feature of similar subject matter provided by persons or conditions over which we have no control. Our letters and reports are for the exclusive use of the clients to whom they are addressed and shall not be reproduced except in full without the written approval of Rone Engineering Services, Ltd. (TM/JC) Page 1 of 2 Rone Engineering .: Client: Transwestern Commercial Services 5001 Spring Valley Dallas, TX 75244 8908 Ambassador Row, Dallas, TX 75247 7701 W Little York, Ste 600, Houston, TX 77040 4421 Freidrich, Ste 195, Austin, TX 78744 Corporate Phone: (214) 630-9745 Report of Concrete Compressive Strength Test Report No.: 298991 Project No.: 0712786 Date of Service: 09/18/2007 Report Date: 10/22/2007 Project: Gateway Business Center Coppell, Texas Services: Obtain samples of fresh concrete at the placement locations, perform required testing, cast compressive strength samples and bring samples back to the laboratory for curing and testing in accordance with applicable standards. Contractor: Constructors & Associates Concrete Supplier: Redi Mix Plant: 136 Specification Requirements Strength: 3,000 psi @ 28 days Slump (in.): 4" - 6" Air (%): NA Test Method: ASTM C-172 ASTM C-31 (except 10.1.2) ASTM C-143 ASTM C-231 ASTM C-1064 ASTM C-138 ASTM C-39 PROJECT DATA Mix Design I.D.: 1501 Placement Date: 09/18/2007 Weather Conditions: Clear, calm Time Sampled: 03:15am Batch time: 02:54am Temperature - Air: 690F Concrete: 840F Truck No: 1018 Ticket No: 13697138 Air Content: 1.4% Unit Weight (pet): NA Overall Placement Location: Building 1, 2nd floor, slab on deck, grid line 12 to grid line 6 Measured Slump (inches) 5.0 Sample Location: Same as above REPORT OF TESTS Concrete Compressive Cylinder 6" x 12" Cylinder Maximum Compressive Marked Date Age Diameter Area Load Strength Fracture Set No. Tested (days) (in) (in') (Ibs) (psi) Type 1 1 09/21/2007 3 6.00 28.27 82,220 2,910 Cone/Split 1 2 09/25/2007 7 6.00 28.27 88,650 3,140 Cone/Split 1 3 10/16/2007 28 6.00 28.27 127,090 4,490 Shear 1 4 10/16/2007 28 6.00 28.27 129,690 4,590 Shear Average 4,540 1 5 11/13/2007 56 LIMITATIONS: The test results presented herein were prepared based upon the specific samples provided for testing. We assume no responsibility for variation in quality (composition, appearance, etc.) or any other feature of similar subject matter provided by persons or conditions over which we have no control. Our letters and reports are for the exclusive use of the clients to whom they are addressed and shall not be reproduced except in full without the written approval of Rone Engineering Services, Ltd. (CH/JC) Page 1 of 3 Rone Engineering Client: Transwestern Commercial Services 5001 Spring Valley Dallas, TX 75244 8908 Ambassador Row, Dallas, TX 75247 7701 W Little York, Ste 600, Houston, TX 77040 4421 Freidrich, Ste 195, Austin, TX 78744 Corporate Phone: (214) 630-9745 Report of Concrete Compressive Strength Test Report No.: 298991 Project No.: 0712786 Date of Service: 09/18/2007 Report Date: 10/22/2007 Project: Gateway Business Center Coppell, Texas Services: Obtain samples of fresh concrete at the placement locations, perform required testing, cast compressive strength samples and bring samples back to the laboratory for curing and testing in accordance with applicable standards. Contractor: Constructors & Associates Concrete Supplier: Redi Mix Plant: 136 Specification Requirements Strength: 3,000 psi @ 28 days Slump (in.): 4" - 6" Air (%): NA Test Method: ASTM C-172 ASTM C-31 (except 10.1.2) ASTM C-143 ASTM C-231 ASTM C-1064 ASTM C-138 ASTM C-39 PROJECT DATA Mix Design I.D.: 1501 Placement Date: 09/18/2007 Weather Conditions: Clear, calm Time Sampled: 05:00am Batch time: 04:35am Temperature - Air: 670F Concrete: 870F Truck No: 1188 Ticket No: 13697157 Air Content: 1.4% Unit Weight (pet): NA Overall Placement Location: Building 1, 2nd floor, slab on deck, grid line 12 to grid line 6 Measured Slump (inches) 5.5 Sample Location: Same as above REPORT OF TESTS Concrete Compressive Cylinder 6" x 12" Cylinder Maximum Compressive Marked Date Age Diameter Area Load Strength Fracture Set No. Tested (days) (in) (in') (Ibs) (psi) Type 2 1 09/21/2007 3 6.00 28.27 74,690 2,640 Cone/Split 2 2 09/25/2007 7 6.00 28.27 110,500 3,910 Cone/Split 2 3 10/16/2007 28 6.00 28.27 138,500 4,900 Cone/Split 2 4 10/16/2007 28 6.00 28.27 134,410 4,750 Cone/Shear Average 4,830 2 5 11/13/2007 56 LIMITATIONS: The test results presented herein were prepared based upon the specific samples provided for testing. We assume no responsibility for variation in quality (composition, appearance, etc.) or any other feature of similar subject matter provided by persons or conditions over which we have no control. Our letters and reports are for the exclusive use of the clients to whom they are addressed and shall not be reproduced except in full without the written approval of Rone Engineering Services, Ltd. (CHIJC) Page 2 of 3