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Gateway BP(3.1)-LR070824 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 Tes1 Report No.: 293266 Project No.: 0712786 Date of Service: 07/24/2007 Report Date: 08/24/2007 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 sampleE 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.): 5" maximum 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: 07/24/2007 Weather Conditions: Clear Time Sampled: 01 :45pm Temperature - Air: 880F Truck No: 1037 Air Content: NA Overall Placement Location: Grade beam leave-outs Batch time: 01 :02pm Concrete: 900F Ticket No: 13692130 Unit Weight (pet): NA Measured Slump (inches) 5.0 Sample Location: Grid locations A-17, E-17, E-1 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 07/31/2007 7 6.00 28.27 76,980 2,720 Unbonded Cap 1 2 08/21/2007 28 6.00 28.27 120,730 4,270 Un bonded Cap 1 3 08/21/2007 28 6.00 28.27 119,110 4,210 Unbonded Cap Average 4,240 4 09/18/2007 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. (LB/LB) Page 1 of 3 Rone Engineering . 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 Client: Transwestern Commercial Services 5001 Spring Valley Dallas, TX 75244 Report of Concrete Compressive Strength Tes1 Report No.: 293266 Project No.: 0712786 Date of Service: 07/24/2007 Report Date: 08/24/2007 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 sample~ back to the laboratory for curing and testing in accordance with applicable standards. Remarks: Water added at site: 5 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. (LBfLB) Page 2 of 3 Rone Engineering . 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 Client: Transwestern Commercial Services 5001 Spring Valley Dallas, TX 75244 Report of Reinforcing Steel Inspection Report No.: 296225 Project No.: 0712786 Date of Service: 08/20/2007 Report Date: 08/24/2007 Project: Gateway Business Center Coppell, Texas Services: Reinforcing Steel Inspection Report of Inspection Locations and Items Inspected: Parking area, west side of building 2 Item sins pected Conforming Non nem s Inspected Conform ing Non ~em s Inspected: Conforming Non Conform ing Conforming Co nfo rm ing P lacing Drawings Bar Length Column Ties Properly Approved x and Shape x Tied and Spaced NA Bar Size x Proper B ar P lacem ent x Stirrup Spacing NA Bar Grade x Properly Tied x Stirrup Type NA Bars Clean x Dowel Bars in Place x Lapped Splices x Form Clean x ProperBarSupports x Corner Bars NA Numberof Bars x ProperCover x Mechanical Splices NA Discrepancies I Comments: No apparent discrepancies were noted at the locations listed above. 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/KW) Page 1 of 2 Rone Engineering . Client: T ranswestern 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 Tes1 Report No.: 295589 Project No.: 0712786 Date of Service: 08/14/2007 Report Date: 08/24/2007 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 sample~ 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.): 4" maximum Air (%): 3% - 6% 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.: 1551 Placement Date: 08/14/2007 Weather Conditions: Sunny Time Sampled: 02:15pm Temperature - Air: 1050F Truck No: 1096 Air Content: 3.4% Overall Placement Location: Inlets Batch time: 01 :29pm Concrete: 920F Ticket No: 3235136 Unit Weight (pct): NA Measured Slump (inches) 3.0 Sample Location: Inlets, front parking lot in front of building 2 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 08/21/2007 7 6.00 28.27 90,430 3,200 Unbonded Cap 2 09/11/2007 28 3 09/11/2007 28 4 10/09/2007 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. (KW/KW) Page 1 of 3 Rone Engineering . 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 Client: Transwestern Commercial Services 5001 Spring Valley Dallas, TX 75244 Report of Concrete Compressive Strength Tes1 Report No.: 295589 Project No.: 0712786 Date of Service: 08/14/2007 Report Date: 08/24/2007 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 sample~ back to the laboratory for curing and testing in accordance with applicable standards. 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. (KW/KW) Page 2 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 Tes1 Report No.: 295527 Project No.: 0712786 Date of Service: 08/14/2007 Report Date: 08/24/2007 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 sample~ 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: 3,600 psi @ 28 days Slump (in.): 5" maximum Air (%): 3% - 6% 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.: 23601524 Placement Date: 08/14/2007 Weather Conditions: Sunny Time Sampled: 04:16am Temperature - Air: 780F Truck No: 1036 Air Content: 5.1% Overall Placement Location: Paving Sample Location: Block B, lot 1, center section REPORT OF TESTS Batch time: 03:29am Concrete: 920F Ticket No: 13693943 Unit Weight (pet): NA Measured Slump (inches) 5.0 Cylinder Marked Set No. - - 2 1 Date Tested 08/21/2007 Age (days) 7 Diameter (in) 6.00 2 2 2 3 09/11/2007 09/11/2007 28 28 Concrete Compressive Cylinder 6" x 12" Maximum Load (Ibs) 85,240 Area (in2) 28.27 Compressive Strength (psi) 3,010 Fracture Type Unbonded Cap 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. (KW/KW) Page 3 of 9 Rone Engineering . 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 Client: Transwestern Commercial Services 5001 Spring Valley Dallas, TX 75244 Report of Concrete Compressive Strength Tes1 Report No.: 295527 Project No.: 0712786 Date of Service: 08/14/2007 Report Date: 08/24/2007 Project: Gateway Business Center Cappel! , Texas Services: Obtain samples of fresh concrete at the placement locations, perform required testing, cast compressive strength samples and bring sample~ back to the laboratory for curing and testing in accordance with applicable standards. REPORT OF TESTS Age (days) 56 Concrete Compressive Cylinder 6" x 12" Maximum Load (Ibs) Area (in') Compressive Strength (psi) Fracture Type Cylinder Marked Set No. - - 2 4 Date Tested 10/09/2007 Diameter (in) 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. (KW/KW) Page 4 of 9 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 Tes1 Report No.: 295527 Project No.: 0712786 Date of Service: 08/14/2007 Report Date: 08/24/2007 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 sample~ 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: 3,600 psi @ 28 days Slump (in.): 5" maximum Air (%): 3% - 6% 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.: 23601524 Placement Date: 08/14/2007 Weather Conditions: Sunny Time Sampled: 05:21am Temperature - Air: 800F Truck No: 1036 Air Content: 5.3% Overall Placement Location: Paving Sample Location: Block B, lot 1, north section REPORT OF TESTS Batch time: 04:46am Concrete: 950F Ticket No: 13693958 Unit Weight (pet): NA Measured Slump (inches) 6.0 Cylinder Marked Set No. - - 3 1 Date Tested 08/21/2007 Age (days) 7 Diameter (in) 6.00 3 3 2 3 09/11/2007 09/11/2007 28 28 Concrete Compressive Cylinder 6" x 12" Maximum Load (Ibs) 76,780 Area (in') 28.27 Compressive Strength (psi) 2,720 Fracture Type Unbonded Cap 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. (KW/KW) Page 5 of 9 Rone Engineering . 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 Client: Transwestern Commercial Services 5001 Spring Valley Dallas, TX 75244 Report of Concrete Compressive Strength Tes1 Report No.: 295527 Project No.: 0712786 Date of Service: 08/14/2007 Report Date: 08/24/2007 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 sampleE back to the laboratory for curing and testing in accordance with applicable standards. REPORT OF TESTS Cylinder Marked Set No. - - 3 4 Date Tested 10/09/2007 Age (days) 56 Concrete Compressive Cylinder 6" x 12" Maximum Load (Ibs) Area (in2) Compressive Strength (psi) Fracture Type Diameter (in) 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. (KW/KW) Page 6 of 9 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 Tes1 Report No.: 295527 Project No.: 0712786 Date of Service: 08/14/2007 Report Date: 08/24/2007 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 sample~ 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: 3,600 psi @ 28 days Slump (in.): 5" maximum Air (%): 3% - 6% 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.: 23601524 Placement Date: 08/14/2007 Weather Conditions: Sunny Time Sampled: 06:50am Temperature - Air: 800F Truck No: 1017 Air Content: 4.9% Overall Placement Location: Paving Sample Location: Block B, lot 1, east section REPORT OF TESTS Batch time: 06:10am Concrete: 950F Ticket No: 13693969 Unit Weight (pet): NA Measured Slump (inches) 5.25 Cylinder Marked Set No. - - 4 1 Date Tested 08/21/2007 Age (days) 7 Diameter (in) 6.00 4 4 2 3 09/11/2007 09/11/2007 28 28 Concrete Compressive Cylinder 6" x 12" Maximum Load (Ibs) 85,930 Area (in2) 28.27 Compressive Strength (psi) 3,040 Fracture Type Unbonded Cap 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. (KW/KIN) Page 7 of 9 Rone Engineering . 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 Client: Transwestern Commercial Services 5001 Spring Valley Dallas, TX 75244 Report of Concrete Compressive Strength Tes1 Report No.: 295527 Project No.: 0712786 Date of Service: 08/14/2007 Report Date: 08/24/2007 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 sample~ back to the laboratory for curing and testing in accordance with applicable standards. REPORT OF TESTS Cylinder Marked Set No. - - 4 4 Date Tested 1 0/09/2007 Age (days) 56 Concrete Compressive Cylinder 6" x 12" Maximum Load (Ibs) Diameter (in) Area (in2) Compressive Strength (psi) Fracture Type 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 (KW/KW) Page 8 of 9 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 Tes1 Report No.: 295527 Project No.: 0712786 Date of Service: 08/14/2007 Report Date: 08/24/2007 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 sample~ 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: 3,600 psi @ 28 days Slump (in.): 5" maximum Air (%): 3% - 6% 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.: 23601524 Placement Date: 08/14/2007 Weather Conditions: Sunny Time Sampled: 03:05am Temperature - Air: 780F Truck No: 1032 Air Content: 4.1 % Overall Placement Location: Paving Sample Location: Block B, lot 1, south section REPORT OF TESTS Batch time: 02:44am Concrete: 900F Ticket No: 13693938 Unit Weight (pet): NA Measured Slump (inches) 4.75 Cylinder Marked Set No. - - 1 1 Date Tested 08/21/2007 Age (days) 7 Diameter (in) 6.00 1 1 09/11/2007 09/11/2007 28 28 2 3 Concrete Compressive Cylinder 6" x 12" Maximum Load (Ibs) 77 ,420 Area (in') 28.27 Compressive Strength (psi) 2,740 Fracture Type Unbonded Cap 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. (KVV/KW) Page 1 of 9 Rone Engineering . 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 Client: Transwestern Commercial Services 5001 Spring Valley Dallas, TX 75244 Report of Concrete Compressive Strength Tes1 Report No.: 295527 Project No.: 0712786 Date of Service: 08/14/2007 Report Date: 08/24/2007 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 sample~ back to the laboratory for curing and testing in accordance with applicable standards. REPORT OF TESTS Cyli nder Marked Set No. - - 1 4 Date Tested 10/09/2007 Age (days) 56 Concrete Compressive Cylinder 6" x 12" Maximum Load (Ibs) Area (in2) Diameter (in) Compressive Strength (psi) Fracture Type 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. (KWfKW) Page 2 of 9 Rone Engineering . Client: T ranswestern 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 Tes1 Report No.: 295447 Project No.: 0712786 Date of Service: 08/13/2007 Report Date: 08/24/2007 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 sample~ 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 1.0.: 830J1521 Placement Date: 08/13/2007 Weather Conditions: Clear Time Sampled: 03:40pm Temperature - Air: 1040F Truck No: 1198 Air Content: NA Overall Placement Location: Grade beam, building 1, 7.5/E - 1 DIE Sample Location: Same as above REPORT OF TESTS Batch time: 03:19pm Concrete: 1000F Ticket No: 13693926 Unit Weight (pet): NA Measured Slump (inches) 5.0 Concrete Compressive Cylinder 6" x 12" Maximum Load (Ibs) 79,940 Cylinder Marked Date Set No. Tested - - 1 1 08/20/2007 1 2 09/10/2007 1 3 09/10/2007 1 4 10/08/2007 Age (days) 7 Diameter (in) 6.00 28 28 56 Area (in') 28.27 Compressive Strength (psi) 2,830 Fracture Type Unbonded Cap LIMIT A nONS: 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. (KW/KW) Page 1 of 3 Rone Engineering . 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 Client: Transwestern Commercial Services 5001 Spring Valley Dallas, TX 75244 Report of Concrete Compressive Strength Tes1 Report No.: 295447 Project No.: 0712786 Date of Service: 08/13/2007 Report Date: 08/24/2007 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 sample~ back to the laboratory for curing and testing in accordance with applicable standards. Remarks: Water added at site: 5 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. (KW/KW) Page 2 of 3