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Gateway BP(3.1)-LR070821 Rone Engineering . Client: Transwestern Commercial Servi Ai'" 5001 Spring Valley / /{. Dallas, TX 75244 /; ,;,); .y . f/ Proj Contractor: Constructors & Associates Concrete Supplier: Redi Mix Plant: 136 Specification Requirements Strength: 3,600 psi @ 28 days Slump (in.): 4" - 6" Air (%): 4% - 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 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 oncrete Compressive Strength Tes1 Report No.: 292571 Project No.: 0712786 Date of Service: 07/18/2007 Report Date: 08/21/2007 PROJECT DATA Mix Design 1.0.: 23601524 Placement Date: 07/18/2007 Weather Conditions: Clear Time Sampled: 04:04am Temperature - Air: 850F Truck No: 1192 Air Content: 4.6% Overall Placement Location: Parking spaces and driveways Batch time: 03:08am Concrete: 880F Ticket No: 13691445 Unit Weight (pet): NA Measured Slump (inches) 3.75 Sample Location: 5' south, 5' west, far northeast corner close to Freeport Parkway 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) TY"le 1 1 07/25/2007 7 6.00 28.27 77,640 2,750 Unbonded Cap 1 2 08/01/2007 14 6.00 28.27 84,970 3,010 Unbonded Cap 1 3 08/15/2007 28 6.00 28.27 130,530 4,620 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 1 of 7 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.: 292571 Project No.: 0712786 Date of Service: 07/18/2007 Report Date: 08/21/2007 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 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 4 08/15/2007 28 6.00 28.27 133,540 4,720 Unbonded Cap Average 4,670 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 7 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.: 292571 Project No.: 0712786 Date of Service: 07/18/2007 Report Date: 08/21/2007 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: 3,600 psi @ 28 days Slump (in.): 4" - 6" Air (%): 4% - 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.: 23601524 Placement Date: 07/18/2007 Weather Conditions: Clear Time Sampled: 07:07am Temperature - Air: 790F Truck No: 1188 Air Content: 5.8% Overall Placement Location: Parking spaces and driveways Batch time: 06:35am Concrete: 890F Ticket No: 13691461 Unit Weight (pct): NA Measured Slump (inches) 5.75 Sample Location: 60' east, 75' north from southeast corner of building 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 07/25/2007 7 6.00 28.27 80,900 2,860 Unbonded Cap 2 2 08/01/2007 14 6.00 28.27 92,090 3,260 Unbonded Cap 2 3 08/15/2007 28 6.00 28.27 110,860 3,920 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 7 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.: 292571 Project No.: 0712786 Date of Service: 07/18/2007 Report Date: 08/21/2007 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 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 2 4 08/15/2007 28 6.00 28.27 110,790 3,920 Unbonded Cap Average 3,920 Remarks: Water added at site: 8 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 4 of 7 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.: 292571 Project No.: 0712786 Date of Service: 07/18/2007 Report Date: 08/21/2007 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.): 4" - 6" Air (%): 4% - 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: 07/18/2007 Weather Conditions: Partly Cloudy Time Sampled: 08:45am Batch time: 08:05am Temperature - Air: 860F Concrete: 880F Truck No: 1187 Ticket No: 13691487 Air Content: 4.5% Unit Weight (pet): NA Overall Placement Location: Parking spaces and driveways Measured Slump (inches) 3.5 Sample Location: 80' east from southweast corner of building 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 - - 3 1 07/25/2007 7 6.00 28.27 99,420 3,520 Unbonded Cap 3 2 08/01/2007 14 6.00 28.27 113,660 4,020 Unbonded Cap 3 3 08/15/2007 28 6.00 28.27 119,960 4,240 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. (fWIIlfWII) Page 5 of 7 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.: 292571 Project No.: 0712786 Date of Service: 07/18/2007 Report Date: 08/21/2007 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 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 4 08/15/2007 28 6.00 28.27 121,610 4,300 Unbonded Cap Average 4,270 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 6 of 7 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.: 292630 Project No.: 0712786 Date of Service: 07/18/2007 Report Date: 08/21/2007 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. PROJECT DATA Contractor: Constructors & Associates Concrete Supplier: Redi-Mix Plant: 136 Specification Requirements Strength: 3,000 psi @ 28 days Slump (in.): 5" - 7" 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 Mix Design I.D.: 830J1521 Placement Date: 07/18/2007 Weather Conditions: Clear Time Sampled: 01 :05pm Temperature - Air: 820F Truck No: 1032 Air Content: NA Overall Placement Location: Light poles, 1401, 1398, 1399, 1397,1396,1400,1402 Measured Slump (inches) 6.0 Batch time: 12:10pm Concrete: 910F Ticket No: 13691542 Unit Weight (pet): NA 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 07/25/2007 7 6.00 28.27 86,990 3,080 Unbonded Cap 1 2 08/15/2007 28 6.00 28.27 116,650 4,130 Unbonded Cap 1 3 08/15/2007 28 6.00 28.27 125,830 4,450 Unbonded Cap Average 4,290 1 4 09/12/2007 56 LIMIT A TrONS: 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/KW) 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 Tes1 Report No.: 292763 Project No.: 0712786 Date of Service: 07/19/2007 Report Date: 08/21/2007 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.): 4" - 6" Air (%): 0% - 2% 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.: 1521 Placement Date: 07/19/2007 Weather Conditions: Cloudy Time Sampled: 02:40pm Temperature - Air: 980F Truck No: 1219 Air Content: 1.6% Overall Placement Location: Light pole bases Batch time: 02:02pm Concrete: 920F Ticket No: 13691721 Unit Weight (pet): NA Measured Slump (inches) 4.0 Sample Location: Grid location L-3 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 07/26/2007 7 6.00 28.27 91,980 3,250 Unbonded Cap 1 2 08/16/2007 28 6.00 28.27 126,330 4,470 Unbonded Cap 1 3 08/16/2007 28 6.00 28.27 131,160 4,640 Unbonded Cap Average 4,550 1 4 09/13/2007 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. (LB/KW) 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 Tes1 Report No.: 292764 Project No.: 0712786 Date of Service: 07/19/2007 Report Date: 08/21/2007 Project: Gateway Business Center Cappell, 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: 6 Specification Requirements Strength: 3,600 psi @ 28 days Slump (in.): 3.0" - 5.0" 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.: 1551 Placement Date: 07/19/2007 Weather Conditions: Cloudy Time Sampled: 04:05pm Temperature - Air: 840F Truck No: 7057 Air Content: NA Overall Placement Location: Inlet Batch time: 03: 1 Opm Concrete: 940F Ticket No: 6308180 Unit Weight (pet): NA Measured Slump (inches) 3.75 Sample Location: Inlet at Station 0+48.7, lateral B-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 07/26/2007 7 6.00 28.27 88,910 3,140 Unbonded Cap 1 2 08/16/2007 28 6.00 28.27 114,580 4,050 Unbonded Cap 1 3 08/16/2007 28 6.00 28.27 112,100 3,960 Unbonded Cap Average 4,010 1 4 09/13/2007 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. (LB/KW) 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 Tes1 Report No.: 292853 Project No.: 0712786 Date of Service: 07/20/2007 Report Date: 08/21/2007 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. PROJECT DATA Contractor: Constructors & Associates Concrete Supplier: Redi Mix Plant: 136 Specification Requirements Strength: 3,600 psi @ 28 days Slump (in.): 4" - 6" Air (%): 4% - 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 Mix Design 1.0.: 23601524 Placement Date: 07/20/2007 Weather Conditions: Cloudy Time Sampled: 02:30am Temperature - Air: 770F Truck No: 1182 Air Content: 5.5% Overall Placement Location: Paving for car parking on Northeast Building 1, northwest of building 2 Measured Slump (inches) 6.0 Batch time: 01 :39am Concrete: 860F Ticket No: 13691747 Unit Weight (pet): NA Sample Location: Building 1: grid line A-12, 240' east 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 07/27/2007 7 6.00 28.27 80,410 2,840 Unbonded Cap 1 2 08/03/2007 14 6.00 28.27 93,890 3,320 Unbonded Cap 1 3 08/17/2007 28 6.00 28.27 104,950 3,710 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 1 of 13 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.: 292853 Project No.: 0712786 Date of Service: 07/20/2007 Report Date: 08/21/2007 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 Concrete Compressive Cylinder 6" x 12" Cyli nder Maximum Compressive Marked Date Age Diameter Area Load Strength Fracture Set No. Tested (days) (in) (in') (Ibs) (psi) Type - 1 4 08/17/2007 28 6.00 28.27 106,190 3,760 Unbonded Cap Average 3,730 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 13 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.: 292853 Project No.: 0712786 Date of Service: 07/20/2007 Report Date: 08/21/2007 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. PROJECT DATA Contractor: Constructors & Associates Concrete Supplier: Redi Mix Plant: 136 Specification Requirements Strength: 3,600 psi @ 28 days Slump (in.): 4" - 6" Air (%): 4% - 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 Mix Design 1.0.: 23601524 Placement Date: 07/20/2007 Weather Conditions: Cloudy Time Sampled: 03:04am Temperature - Air: 780F Truck No: 1184 Air Content: 2.5% Overall Placement Location: Paving for car parking on Northeast Building 1, northwest of building 2 Measured Slump (inches) 5.0 Batch time: 01 :56am Concrete: 850F Ticket No: 13691751 Unit Weight (pet): NA Sample Location: Building 1: grid line A-17, 170 east 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 07/27/2007 7 6.00 28.27 87,970 3,110 Unbonded Cap 2 2 08/03/2007 14 6.00 28.27 102,250 3,620 Unbonded Cap 2 3 08/17/2007 28 6.00 28.27 114,590 4,050 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, LId (KW/KW) Page 3 of 13 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.: 292853 Project No.: 0712786 Date of Service: 07/20/2007 Report Date: 08/21/2007 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 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 4 08/17/2007 28 6.00 28.27 116,910 4,130 Unbonded Cap Average 4,090 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 4 of 13 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.: 292853 Project No.: 0712786 Date of Service: 07/20/2007 Report Date: 08/21/2007 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. PROJECT DATA Contractor: Constructors & Associates Concrete Supplier: Redi Mix Plant: 136 Specification Requirements Strength: 3,600 psi @ 28 days Slump (in.): 4" - 6" Air (%): 4% - 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 Mix Design 1.0.: 23601524 Placement Date: 07/20/2007 Weather Conditions: Cloudy Time Sampled: 04:32am Temperature - Air: 790F Truck No: 1039 Air Content: 2.8% Overall Placement Location: Paving for car parking on Northeast Building 1, northwest of building 2 Measured Slump (inches) 5.0 Batch time: 03:51am Concrete: 840F Ticket No: 13691771 Unit Weight (pet): NA Sample Location: Building 1: gridline A-16, 170' east 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 07/27/2007 7 6.00 28.27 79,460 2,810 Unbonded Cap 3 2 08/03/2007 14 6.00 28.27 95,120 3,360 Unbonded Cap 3 3 08/17/2007 28 6.00 28.27 112,690 3,990 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 13 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.: 292853 Project No.: 0712786 Date of Service: 07/20/2007 Report Date: 08/21/2007 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 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 4 08/17/2007 28 6.00 28.27 117,750 4,160 Unbonded Cap Average 4,080 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 6 of 13 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.: 292853 Project No.: 0712786 Date of Service: 07/20/2007 Report Date: 08/21/2007 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. PROJECT DATA Contractor: Constructors & Associates Concrete Supplier: Redi Mix Plant: 136 Specification Requirements Strength: 3,600 psi @ 28 days Slump (in.): 4" - 6" Air (%): 4% - 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 Mix Design I.D.: 23601524 Placement Date: 07/20/2007 Weather Conditions: Cloudy Time Sampled: 06:34am Temperature - Air: 780F Truck No: 1192 Air Content: 4.8% Overall Placement Location: Paving for car parking on Northeast Building 1, northwest of building 2 Measured Slump (inches) 4.5 Batch time: 05: 19am Concrete: 830F Ticket No: 13691800 Unit Weight (pet): NA Sample Location: Parking spaces at building 2: gridline A-17, 120' Ex 60'N 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 07/27/2007 7 6.00 28.27 89,230 3,160 Unbonded Cap 4 2 08/03/2007 14 6.00 28.27 93,900 3,320 Unbonded Cap 4 3 08/17/2007 28 6.00 28.27 111,550 3,950 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 7 of 13 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.: 292853 Project No.: 0712786 Date of Service: 07/20/2007 Report Date: 08/21/2007 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 Concrete Compressive Cylinder 6" x 12" Cyli nder Maximum Compressive Marked Date Age Diameter Area Load Strength Fracture Set No. Tested (days) (in) (in2) (Ibs) (psi) Type - - 4 4 08/17/2007 28 6.00 28.27 111 ,890 3,960 Unbonded Cap Average 3,950 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 8 of 13 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.: 292853 Project No.: 0712786 Date of Service: 07/20/2007 Report Date: 08/21/2007 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.): 4" - 6" Air (%): 4% - 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: 07/20/2007 Weather Conditions: Partly cloudy Time Sampled: 07:40am Batch time: 07:09am Temperature - Air: 800F Concrete: 910F Truck No: 1032 Ticket No: 13691825 Air Content: 2.5% Unit Weight (pct): NA Overall Placement Location: Paving for car parking on Northeast Building 1, northwest of building 2 Measured Slump (inches) 5.25 Sample Location: Building 2: grid line A-13.5, 120' east 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 - - 5 1 07/27/2007 7 6.00 28.27 67,930 2,400 Unbonded Cap 5 2 08/03/2007 14 6.00 28.27 93,950 3,320 Unbonded Cap 5 3 08/17/2007 28 6.00 28.27 103,310 3,650 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 9 of 13 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.: 292853 Project No.: 0712786 Date of Service: 07/20/2007 Report Date: 08/21/2007 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 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 - - 5 4 08/17/2007 28 6.00 28.27 1 08, 160 3,830 Unbonded Cap Average 3,740 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 10 of 13 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.: 292853 Project No.: 0712786 Date of Service: 07/20/2007 Report Date: 08/21/2007 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. PROJECT DATA Contractor: Constructors & Associates Concrete Supplier: Redi Mix Plant: 136 Specification Requirements Strength: 3,600 psi @ 28 days Slump (in.): 4" - 6" Air (%): 4% - 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 Mix Design 1.0.: 23601524 Placement Date: 07/20/2007 Weather Conditions: Cloudy Time Sampled: 09:14am Temperature - Air: 870F Truck No: 1032 Air Content: 3.8% Overall Placement Location: Paving for car parking on Northeast Building 1, northwest of building 2 Measured Slump (inches) 5.25 Batch time: 08:44am Concrete: 900F Ticket No: 13691845 Unit Weight (pet): NA Sample Location: Building 2: gridline A-11.5, 100' east 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 - - 6 1 07/27/2007 7 6.00 28.27 89,620 3,170 Unbonded Cap 6 2 08/03/2007 14 6.00 28.27 107,710 3,810 Unbonded Cap 6 3 08/17/2007 28 6.00 28.27 125,020 4,420 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 11 of 13 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.: 292853 Project No.: 0712786 Date of Service: 07/20/2007 Report Date: 08/21/2007 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 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 - - 6 4 08/17/2007 28 6.00 28.27 121,880 4,310 Unbonded Cap Average 4,370 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 12 of 13 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.: 295017 Project No.: 0712786 Date of Service: 08/09/2007 Report Date: 08/21/2007 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. PROJECT DATA Contractor: Constructors & Associates Concrete Supplier: Redi Mix Plant: 259 Specification Requirements Strength: 3,600 psi @ 28 days Slump (in.): 3" - 5" 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 Mix Design 1.0.: 336K15D4 Placement Date: 08/09/2007 Weather Conditions: Clear Time Sampled: 02:30am Temperature - Air: 780F Truck No: 1347 Air Content: 5.5% Overall Placement Location: Paving on northwest corner of building 1, pour 2 Measured Slump (inches) 5.0 Batch time: 01 :29am Concrete: 870F Ticket No: 59011424 Unit Weight (pet): NA Sample Location: 140' west, 200' south from northwest corner of building 1 REPORT OF TESTS Cylinder Marked Set No. - - 1 1 Age (days) 7 Diameter (in) 6.00 Date Tested 08/16/2007 1 1 2 3 09/06/2007 09/06/2007 28 28 Concrete Compressive Cylinder 6" x 12" Maximum Load (Ibs) 91,990 Compressive Strength (psi) 3,250 Fracture Type Unbonded Cap Area (in') 28.27 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 1 of 13 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.: 295017 Project No.: 0712786 Date of Service: 08/09/2007 Report Date: 08/21/2007 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. - - 1 4 Date Tested 10/04/2007 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 2 of 13 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.: 295017 Project No.: 0712786 Date of Service: 08/09/2007 Report Date: 08/21/2007 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. PROJECT DATA Contractor: Constructors & Associates Concrete Supplier: Redi Mix Plant: 259 Specification Requirements Strength: 3,600 psi @ 28 days Slump (in.): 3" - 5" 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 Mix Design I.D.: 336K15D4 Placement Date: 08/09/2007 Weather Conditions: Clear Time Sampled: 03:50am Temperature - Air: 790F Truck No: 134 7 Air Content: 5.3% Overall Placement Location: Paving on northwest corner of building 1, pour 2 Measured Slump (inches) 5.0 Batch time: 03:12am Concrete: 860F Ticket No: 59011435 Unit Weight (pet): NA Sample Location: 250' west, 150' south from northwest corner of building 1 REPORT OF TESTS Cylinder Marked Set No. - - 2 1 Concrete Compressive Cylinder 6" x 12" Maximum Load (Ibs) 80,350 Compressive Strength (psi) 2,840 Fracture Type Unbonded Cap Date Tested 08/16/2007 Age (days) 7 Diameter (in) 6.00 2 2 2 3 09/06/2007 09/06/2007 28 28 Area (in') 28.27 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 13 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.: 295017 Project No.: 0712786 Date of Service: 08/09/2007 Report Date: 08/21/2007 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. - - 2 4 Date Tested 10/04/2007 Age (days) 56 Concrete Compressive Cylinder 6" x 12" Maximum Load (Ibs) Area (in') 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. (KW/KW) Page 4 of 13 Rone Engineering . Client: Transwestem 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.: 295017 Project No.: 0712786 Date of Service: 08/09/2007 Report Date: 08/21/2007 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. PROJECT DATA Contractor: Constructors & Associates Concrete Supplier: Redi Mix Plant: 259 Specification Requirements Strength: 3,600 psi @ 28 days Slump (in.): 3" - 5" 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 Mix Design 1.0.: 336K15D4 Placement Date: 08/09/2007 Weather Conditions: Clear Time Sampled: 05:21 am Temperature - Air: 790F Truck No: 1307 Air Content: 5.1% Overall Placement Location: Paving on northwest corner of building 1, pour 2 Measured Slump (inches) 5.0 Batch time: 04:37am Concrete: 860F Ticket No: 59011445 Unit Weight (pet): NA Sample Location: 190' west, 110' south from northwest corner of building 1 REPORT OF TESTS Cylinder Marked Set No. - - 3 1 Age (days) 7 Diameter (in) 6.00 Date Tested 08/16/2007 3 3 2 3 09/06/2007 09/06/2007 28 28 Concrete Compressive Cylinder 6" x 12" Maximum Load (Ibs) 101,710 Compressive Strength (psi) 3,600 Fracture Typ~ Unbonded Cap Area (in') 28.27 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 lelters 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 13 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.: 295017 Project No.: 0712786 Date of Service: 08/09/2007 Report Date: 08/21/2007 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. - - 3 4 Date Tested 10/04/2007 Age (days) 56 Concrete Compressive Cylinder 6" x 12" Maximum Load (Ibs) Diameter (in) Area (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. (KW/KW) Page 6 of 13 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.: 295017 Project No.: 0712786 Date of Service: 08/09/2007 Report Date: 08/21/2007 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. PROJECT DATA Contractor: Constructors & Associates Concrete Supplier: Redi Mix Plant: 259 Specification Requirements Strength: 3,600 psi @ 28 days Slump (in.): 3" - 5" 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 Mix Design I.D.: 336K15D4 Placement Date: 08/09/2007 Weather Conditions: Clear Time Sampled: 07:10am Temperature - Air: 820F Truck No: 1345 Air Content: 5.3% Overall Placement Location: Paving on northwest corner of building 1, pour 2 Measured Slump (inches) 5.0 Batch time: 06:49am Concrete: 860F Ticket No: 59011461 Unit Weight (pct): NA Sample Location: 120' west, 85' south from northwest corner of building 1 REPORT OF TESTS Cylinder Marked Set No. - - 4 1 Concrete Compressive Cylinder 6" x 12" Maximum Load (Ibs) 86,380 Compressive Strength (psi) 3,060 Fracture Type Unbonded Cap Date Tested 08/16/2007 Age (days) 7 Diameter (in) 6.00 4 4 2 3 09/06/2007 09/06/2007 28 28 Area (in2) 28.27 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 7 of 13 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.: 295017 Project No.: 0712786 Date of Service: 08/09/2007 Report Date: 08/21/2007 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. - - 4 4 Date Tested 10/04/2007 Age (days) 56 Concrete Compressive Cylinder 6" x 12" Maximum Load (Ibs) Diameter (in) Area (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. (KW/KW) Page 8 of 13 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.: 295017 Project No.: 0712786 Date of Service: 08/09/2007 Report Date: 08/21/2007 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. PROJECT DATA Contractor: Constructors & Associates Concrete Supplier: Redi Mix Plant: 259 Specification Requirements Strength: 3,600 psi @ 28 days Slump (in.): 3" - 5" 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 Mix Design I.D.: 336K15D4 Placement Date: 08/09/2007 Weather Conditions: Clear Time Sampled: 09:20am Temperature - Air: 850F Truck No: 1375 Air Content: 5.4% Overall Placement Location: Paving on northwest corner of building 1, pour 2 Measured Slump (inches) 5.5 Batch time: 08:28am Concrete: 870F Ticket No: 59011482 Unit Weight (pct): NA Sample Location: 40' west, 125' south from northwest corner of building 1 REPORT OF TESTS Cylinder Marked Set No. - - 5 1 Age (days) 7 Diameter (in) 6.00 Date Tested 08/16/2007 5 5 2 3 09/06/2007 09/06/2007 28 28 Concrete Compressive Cylinder 6" x 12" Maximum Load (Ibs) 80,460 Compressive Strength (psi) 2,850 Fracture Type Unbonded Cap Area (in') 28.27 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 9 of 13 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.: 295017 Project No.: 0712786 Date of Service: 08/09/2007 Report Date: 08/21/2007 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. - - 5 4 Date Tested 10/04/2007 Age (days) 56 Concrete Compressive Cylinder 6" x 12" Maximum Load (Ibs) Area (in') 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. (KW/KW) Page 10 of 13 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.: 295017 Project No.: 0712786 Date of Service: 08/09/2007 Report Date: 08/21/2007 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. PROJECT DATA Contractor: Constructors & Associates Concrete Supplier: Redi Mix Plant: 259 Specification Requirements Strength: 3,600 psi @ 28 days Slump (in.): 3" - 5" 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 Mix Design 1.0.: 336K15D4 Placement Date: 08/09/2007 Weather Conditions: Clear Time Sampled: 10:50am Temperature - Air: 900F Truck No: 1257 Air Content: 5.1 % Overall Placement Location: Paving on northwest corner of building 1, pour 2 Measured Slump (inches) 5.0 Batch time: 09:45am Concrete: 920F Ticket No: 59011494 Unit Weight (pet): NA Sample Location: 70' west, 60' south from northwest corner of building 1 REPORT OF TESTS Cylinder Marked Set No. - - 6 1 Age (days) 7 Diameter (in) 6.00 Date Tes~~d 08/16/2007 6 6 2 3 09/06/2007 09/06/2007 28 28 Concrete Compressive Cylinder 6" x 12" Maximum Load (Ibs) 81,800 Compressive Strength (psi) 2,890 Fracture Type Unbonded Cap Area (in') 28.27 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 11 of 13 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.: 295017 Project No.: 0712786 Date of Service: 08/09/2007 Report Date: 08/21/2007 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. - - 6 4 Date Tested 10/04/2007 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, Ltd. (KW/KW) Page 12 of 13 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.: 295188 Project No.: 0712786 Date of Service: 08/10/2007 Report Date: 08/21/2007 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 5ample~ 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.): 4" - 6" 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: 08/10/2007 Weather Conditions: Clear Time Sampled: 02:40am Temperature - Air: 770F Truck No: 1371 Air Content: 5.0% Overall Placement Location: Pour G west of building 1 Batch time: 01 :55am Concrete: 840F Ticket No: 13693699 Unit Weight (pet): NA Measured Slump (inches) 5.5 Sample location: 20' north, 10' east from southwest corner of paving Concrete Compressive Cylinder 6" x 12" Maximum load (Ibs) 103,360 Area (in') 28.27 REPORT OF TESTS Compressive Strength (psi) 3,660 Fracture Type Unbonded Cap Cylinder Marked Set No. - - 1 1 Date Tested 08/17/2007 Age (days) 7 Diameter 0:" , 6.00 1 1 2 3 09/07/2007 09/07/2007 28 28 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/LB) 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.: 295188 Project No.: 0712786 Date of Service: 08/10/2007 Report Date: 08/21/2007 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. - - 1 4 Date Tested 10/05/2007 Age (days) 56 Concrete Compressive Cylinder 6" x 12" Maximum Load (Ibs) Area (in>) Compressive Strength (psi) Fracture Type Diameter (in) 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. (CH/LB) Page 2 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.: 295188 Project No.: 0712786 Date of Service: 08/10/2007 Report Date: 08/21/2007 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.): 4" - 6" 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.: 23601524 Placement Date: 08/10/2007 Weather Conditions: Clear Time Sampled: 03:15am Temperature - Air: nOF Truck No: 1038 Air Content: 4.8% Overall Placement Location: Pour G west of building 1 Batch time: 02:34am Concrete: 840F Ticket No: 13693708 Unit Weight (pct): NA Measured Slump (inches) 5.5 Sample Location: 60' north, 5' west from southeast corner of paving REPORT OF TESTS Cylinder Marked Set No. - - 2 1 Age (days) 7 Diameter (in) 6.00 Date Tested 08/17/2007 2 2 2 3 09/07/2007 09/07/2007 28 28 Concrete Compressive Cylinder 6" x 12" Maximum Load (Ibs) 102,100 Compressive Strength (psi) 3,610 Fracture Type Unbonded Cap Area (in') 28.27 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/LB) 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.: 295188 Project No.: 0712786 Date of Service: 08/10/2007 Report Date: 08/21/2007 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. - - 2 4 Date Tested 10/05/2007 Age (days) 56 Concrete Compressive Cylinder 6" x 12" Maximum Load (Ibs) Area (in') Diameter (in) Compressive Strength (psi) Fracture Type 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. (CH/LB) 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.: 295188 Project No.: 0712786 Date of Service: 08/10/2007 Report Date: 08/21/2007 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.): 4" - 6" 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: 08/10/2007 Weather Conditions: Clear Time Sampled: 05:40am Temperature - Air: 750F Truck No: 1364 Air Content: 5.0% Overall Placement Location: Pour G west of building 1 Batch time: 05:25am Concrete: 830F Ticket No: 13693736 Unit Weight (pet): NA Measured Slump (inches) 5.0 Sample Location: 150' north, 10' westfrom southeast of paving REPORT OF TESTS Cyli nder Marked Set No. - - 3 1 Date Tested 08/17/2007 Age (days) 7 Diameter (in) 6.00 3 3 2 3 09/07/2007 09/07/2007 28 28 Concrete Compressive Cylinder 6" x 12" Maximum Load (Ibs) 79,840 Compressive Strength (psi) 2,820 Fracture Type Unbonded Cap Area (in2) 28.27 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/LB) 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.: 295188 Project No.: 0712786 Date of Service: 08/10/2007 Report Date: 08/21/2007 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. - - 3 4 Date Tested 10/05/2007 Age (days) 56 Concrete Compressive Cylinder 6" x 12" Maximum Load (Ibs) Diameter (in) Area (in') Compressive Strength (psi) Fracture Type 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. (CH/LB) 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.: 295188 Project No.: 0712786 Date of Service: 08/10/2007 Report Date: 08/21/2007 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.): 4" - 6" 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 Cylinder Marked Set No. - - 4 1 Date Tested 08/17/2007 Age (days) 7 Diameter (in) 6.00 4 4 2 3 09/07/2007 09/07/2007 28 28 PROJECT DATA Mix Design 1.0.: 23601524 Placement Date: 08/10/2007 Weather Conditions: Clear Time Sampled: 08:00am Temperature - Air: 770F Truck No: 1015 Air Content: 5.0% Overall Placement Location: Pour G west of building 1 Batch time: 07:14am Concrete: 820F Ticket No: 13693759 Unit Weight (pet): NA Measured Slump (inches) 5.0 Sample Location: 10' east, 5' north from southwest corner of paving REPORT OF TESTS Concrete Compressive Cylinder 6" x 12" Maximum Load (Ibs) 79,350 Compressive Strength (psi) 2,810 Fracture Type Unbonded Cap Area (in') 28.27 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/LB) 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.: 295188 Project No.: 0712786 Date of Service: 08/10/2007 Report Date: 08/21/2007 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 0/05/2007 Age (days) 56 Concrete Compressive Cylinder 6" x 12" Maximum Load (Ibs) Diameter (in) Area (in2) Compressive Strength (psi) Fracture Type 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. (CH/LB) Page 8 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 Reinforcing Steel Inspection Report No.: 295718 Project No.: 0712786 Date of Service: 08/15/2007 Report Date: 08/21/2007 Project: Gateway Business Center Coppell, Texas Services: Reinforcing Steel Inspection Report of Inspection Locations and Items Inspected: Building 1, leave out area inside building outer perimeter (all). Items Inspected" Conforming Non Item s Inspected Confo rm ing Non hem s Inspected: Co nfo rm ing Non C onfo rm ing Co nfonm ing Conforming P lacing Drawings Bar Length Co turn n Ties Pro perly Approved x and Shape x Tied and Spaced NA Bar Size x P fO per B ar P laeem 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 Proper B ar Suppo rts x Corner Bars x Num ber of Bars x ProperCol/er x Mechanical Splices NA Discrepancies / 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