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Duke Lesley-LR070820 Rone Engineering . Client: Duke Construction, LP 14241 Dallas Pkwy, Ste 1000 Dallas, TX 75254-2936 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.: 295199 Project No.: 0612510 Date of Service: 08/10/2007 Report Date: 08/20/2007 Project: Lesley Infrastructure 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: Concrete Supplier: Lacy Plant: On site 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 Mix Design 1.0.: 5194 Placement Date: 08/10/2007 Weather Conditions: Clear Time Sampled: 06:15am Temperature - Air: 810F Truck No: NA Air Content: 4.2% Overall Placement Location: Paving for Dividend Street, Stations 19+00 to 39+50, eastbound lane Measured Slump (inches) 1.0 Batch time: 06: 1 Oam Concrete: 850F Ticket No: NA Unit Weight (pcf): NA Sample Location: Station 19+54 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 08/17/2007 7 6.00 28.27 101,500 3,590 Unbonded Cap 1 2 09/07/2007 28 6.00 28.27 116,570 4,120 Cone/Split 1 3 09/07/2007 28 6.00 28.27 118,590 4,190 Cone/Shear Average 4,160 4 08/14/2007 4 6.00 28.27 94,980 3,360 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. (LB/LB) Page 1 of 9 Rone Engineering . Client: Duke Construction, LP 14241 Dallas Pkwy, Ste 1000 Dallas, TX 75254-2936 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.: 295199 Project No.: 0612510 Date of Service: 08/10/2007 Report Date: 08/20/2007 Project: Lesley Infrastructure 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: Concrete Supplier: Lacy Plant: On site 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 Mix Design 1.0.: 5194 Placement Date: 08/10/2007 Weather Conditions: Clear Time Sampled: 07:15am Temperature - Air: 850F Truck No: NA Air Content: 3.9% Overall Placement Location: Paving for Dividend Street, Stations 19+00 to 39+50, eastbound lane Measured Slump (inches) 0.75 Batch time: 07: 1 Oam Concrete: 890F Ticket No: NA Unit Weight (pet): NA Sample Location: Station 20+85 REPORT OF TESTS Concrete Compressive Cylinder 6" x 12" Cylinder Maximum Compressive Marked Date Age Diameter Area Load Strength Fracture Set No. Tested (days) (in) (in') (Ibs) (psi) Type 2 1 08/17/2007 7 6.00 28.27 97,090 3,430 Unbonded Cap 2 2 09/07/2007 28 6.00 28.27 115,920 4,100 Shear 2 3 09/07/2007 28 6.00 28.27 121 , 170 4,290 Cone/Split Average 4,190 2 4 08/14/2007 4 6.00 28.27 82,040 2,900 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. (LBfLB) Page 2 of 9 Rone Engineering . Client: Duke Construction, LP 14241 Dallas Pkwy, Ste 1000 Dallas, TX 75254-2936 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.: 295199 Project No.: 0612510 Date of Service: 08/10/2007 Report Date: 08/20/2007 Project: Lesley Infrastructure 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: Concrete Supplier: Lacy Plant: On site 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 Mix Design I.D.: 5194 Placement Date: 08/10/2007 Weather Conditions: Clear Time Sampled: 07:45am Temperature - Air: 860F Truck No: NA Air Content: 4.6% Overall Placement Location: Paving for Dividend Street, Stations 19+00 to 39+50, eastbound lane Measured Slump (inches) 1.25 Batch time: 07:40am Concrete: 890F Ticket No: NA Unit Weight (pet): NA Sample Location: Station 22+50 REPORT OF TESTS Concrete Compressive Cylinder 6" x 12" Cylinder Maximum Compressive Marked Date Age Diameter Area Load Strength Fracture Set No. Tested (days) (in) (in') (Ibs) (psi) Type 3 1 08/17/2007 7 6.00 28.27 93,160 3,290 Unbonded Cap 3 2 09/07/2007 28 6.00 28.27 111 ,760 3,950 Cone/Split 3 3 09/07/2007 28 6.00 28.27 115,270 4,080 Shear Average 4,010 3 4 08/14/2007 4 6.00 28.27 90,550 3,200 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. (LB/LB) Page 3 of 9 Rone Engineering . Client: Duke Construction, LP 14241 Dallas Pkwy, Ste 1000 Dallas, TX 75254-2936 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.: 295199 Project No.: 0612510 Date of Service: 08/10/2007 Report Date: 08/20/2007 Project: Lesley Infrastructure 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: Concrete Supplier: Lacy Plant: On site 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 Mix Design 1.0.: 5194 Placement Date: 08/10/2007 Weather Conditions: Clear Time Sampled: 08:45am Temperature - Air: 880F Truck No: NA Air Content: 4.3% Overall Placement Location: Paving for Dividend Street, Stations 19+00 to 39+50, eastbound lane Measured Slump (inches) 1.0 Batch time: 08:40am Concrete: 910F Ticket No: NA Unit Weight (pet): NA Sample Location: Station 25+50 REPORT OF TESTS Concrete Compressive Cylinder 6" x 12" Cylinder Maximum Compressive Marked Date Age Diameter Area Load Strength Fracture Set No. Tested (days) (in) (in') (Ibs) (psi) Type 4 1 08/17/2007 7 6.00 28.27 89,700 3,170 Unbonded Cap 4 2 09/07/2007 28 6.00 28.27 111,040 3,930 Cone/Split 4 3 09/07/2007 28 6.00 28.27 108,610 3,840 Cone/Split Average 3,880 4 4 08/14/2007 4 6.00 28.27 82,970 2,930 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. (LB/LB) Page 4 of 9 Rone Engineering . Client: Duke Construction, LP 14241 Dallas Pkwy, Ste 1000 Dallas, TX 75254-2936 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.: 295199 Project No.: 0612510 Date of Service: 08/10/2007 Report Date: 08/20/2007 Project: Lesley Infrastructure 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: Concrete Supplier: Lacy Plant: On site 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-l 064 ASTM C-138 ASTM C-39 Mix Design 1.0.: 5194 Placement Date: 08/10/2007 Weather Conditions: Clear Time Sampled: 09:35am Temperature - Air: 890F Truck No: NA Air Content: 4.0% Overall Placement Location: Paving for Dividend Street, Stations 19+00 to 39+50, eastbound lane Measured Slump (inches) 1.25 Batch time: 09:30am Concrete: 920F Ticket No: NA Unit Weight (pet): NA Sample Location: Station 27+75 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 5 1 08/17/2007 7 6.00 28.27 91,790 3,250 Unbonded Cap 5 2 09/07/2007 28 6.00 28.27 119,430 4,220 Cone/Split 5 3 09/07/2007 28 6.00 28.27 109,950 3,890 Shear Average 4,060 5 4 08/14/2007 4 6.00 28.27 90,450 3,200 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. (LB/LB) Page 5 of 9 Rone Engineering . Client: Duke Construction, LP 14241 Dallas Pkwy, Ste 1000 Dallas, TX 75254-2936 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.: 295199 Project No.: 0612510 Date of Service: 08/10/2007 Report Date: 08/20/2007 Project: Lesley Infrastructure 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: Concrete Supplier: Lacy Plant: On site 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-'i064 ASTM C-138 ASTM C-39 Mix Design 1.0.: 5194 Placement Date: 08/10/2007 Weather Conditions: Clear Time Sampled: 10:15am Temperature - Air: 900F Truck No: NA Air Content: 4.4% Overall Placement Location: Paving for Dividend Street, Stations 19+00 to 39+50, eastbound lane Measured Slump (inches) 1.25 Batch time: 10:10am Concrete: 930F Ticket No: NA Unit Weight (pet): NA Sample Location: Station 30+00 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 08/17/2007 7 6.00 28.27 94,620 3,350 Unbonded Cap 6 2 09/07/2007 28 6.00 28.27 108,460 3,840 Cone/Shear 6 3 09/07/2007 28 6.00 28.27 108,470 3,840 Cone/Split Average 3,840 6 4 08/14/2007 4 6.00 28.27 80,240 2,840 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. (LB/LB) Page 6 of 9 Rone Engineering . Client: Duke Construction, LP 14241 Dallas Pkwy, Ste 1000 Dallas, TX 75254-2936 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.: 295199 Project No.: 0612510 Date of Service: 08/10/2007 Report Date: 08/20/2007 Project: Lesley Infrastructure 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: Concrete Supplier: Lacy Plant: On site 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 Mix Design 1.0.: 5194 Placement Date: 08/10/2007 Weather Conditions: Clear Time Sampled: 11 :25am Temperature - Air: 940F Truck No: NA Air Content: 4.4% Overall Placement Location: Paving for Dividend Street, Stations 19+00 to 39+50, eastbound lane Measured Slump (inches) 1.25 Batch time: 11 :20am Concrete: 960F Ticket No: NA Unit Weight (pcf): NA Sample Location: Station 32+25 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 7 1 08/17/2007 7 6.00 28.27 95,950 3,390 Unbonded Cap 7 2 09/07/2007 28 6.00 28.27 115,680 4,090 Cone/Split 7 3 09/07/2007 28 6.00 28.27 111,380 3,940 Cone/Split Average 4,020 7 4 08/14/2007 4 6.00 28.27 88,860 3,140 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. (LB/LB) Page 7 of 9 Rone Engineering . Client: Duke Construction, LP 14241 Dallas Pkwy, Ste 1000 Dallas, TX 75254-2936 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.: 295199 Project No.: 0612510 Date of Service: 08/10/2007 Report Date: 08/20/2007 Project: Lesley Infrastructure 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: Concrete Supplier: Lacy P~nt Ons~ 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 .ASTII~ C..10b4 ASTM C-138 ASTM C-39 Mix Design I.D.: 5194 Placement Date: 08/10/2007 Weather Conditions: Clear Time Sampled: 12:15pm Temperature - Air: 960F Truck No: NA Air Content: 4.7% Overall Placement Location: Paving for Dividend Street, Stations 19+00 to 39+50, eastbound lane Measured Slump (inches) 1.5 Batch time: 12:10pm Concrete: 990F Ticket No: NA Unit Weight (pet): NA Sample Location: Station 35+00 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 8 1 08/17/2007 7 6.00 28.27 98,150 3,470 Unbonded Cap 8 2 09/07/2007 28 6.00 28.27 110,640 3,910 Shear 8 3 09/07/2007 28 6.00 28.27 111,820 3,950 Cone/Split Average 3,930 8 4 08/14/2007 4 6.00 28.27 89,390 3,160 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. (LB/LB) Page 8 of 9 Rone Engineering . Client: Duke Construction, LP 14241 Dallas Pkwy, Ste 1000 Dallas, TX 75254-2936 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.: 295199 Project No.: 0612510 Date of Service: 08/10/2007 Report Date: 08/20/2007 Project: Lesley Infrastructure 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: Concrete Supplier: Lacy Plant: On site 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-1 064 ASTM C-138 ASTM C-39 Mix Design 1.0.: 5194 Placement Date: 08/10/2007 Weather Conditions: Clear Time Sampled: 01 :OOpm Temperature - Air: 970F Truck No: NA Air Content: 4.4% Overall Placement Location: Paving for Dividend Street, Stations 19+00 to 39+50, eastbound lane Measured Slump (inches) 1.5 Batch time: 12:55pm Concrete: 990F Ticket No: NA Unit Weight (pet): NA Sample Location: Station 37+50 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 9 1 08/17/2007 7 6.00 28.27 78,540 2,780 Unbonded Cap 9 2 09/07/2007 28 6.00 28.27 98,000 3,470 Shear 9 3 09/07/2007 28 6.00 28.27 108,250 3,830 Cone/Split Average 3,650 9 4 08/14/2007 4 6.00 28.27 78,500 2,780 Unbonded Cap Technician: Ryan Rawlinson Report Distribution: Orig: Duke Construction, LP (Dallas, TX) Attn: Mr. Alex Bennett PE (1-ec copy) 1-cc City of Coppell Attn: Mr. Larry Davis 1-ec Lacy Construction Attn: Mr. Kevin Briles 1-cc City of Coppell Attn: Mr. Lee Stone Started: 05:15am Finished: 03:15pm Rone Engineering p~.~ K. Scott Watson, AET Project Manager 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 9 of 9