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Duke Lesley-LR070911 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.: 295814 Project No.: 0612510 Date of Service: 08/16/2007 Report Date: 09/11/2007 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.): 6" 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 Batch time: 08:35am Concrete: 910F Ticket No: NA Unit Weight (pet): NA Measured Slump (inches) 4.5 Mix Design 1.0.: 5194 Placement Date: 08/16/2007 Weather Conditions: Clear Time Sampled: 08:45am Temperature - Air: 890F Truck No: NA Air Content: 5.1 % Overall Placement Location: Paving, Dividend St. median, Station 0+00 to 2+50, eastbound Dividend turn lanes at median, (cont) Sample Location: Dividend St. median, Station 2+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) (in2) (Ibs) (psi) Type 1 1 08/20/2007 4 6.00 28.27 71,090 2,510 Unbonded Cap 1 2 08/23/2007 7 6.00 28.27 79,320 2,810 Unbonded Cap 1 3 09/13/2007 28 1 4 09/13/2007 28 Remarks: Cont: Station 11 +80 to 13+45, 15+10 to 16+80, 18+00 to 19+90, 21 +1 0 to 22+80 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. (LBILB) Page 1 of 3 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.: 295814 Project No.: 0612510 Date of Service: 08/16/2007 Report Date: 09/11/2007 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.): 6" 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 Batch time: 12:00pm Concrete: 900F Ticket No: NA Unit Weight (pet): NA Measured Slump (inches) 1.25 Mix Design 1.0.: 5194 Placement Date: 08/16/2007 Weather Conditions: Clear Time Sampled: 12:05pm Temperature - Air: 900F Truck No: NA Air Content: 4.7% Overall Placement Location: Paving, Dividend SI. median, Station 0+00 to 2+50, eastbound Dividend turn lanes at median, (cont) Sample Location: Dividend turn lane, Station 12+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 2 1 08/20/2007 4 6.00 28.27 82,880 2,930 Unbonded Cap 2 2 08/23/2007 7 6.00 28.27 86,590 3,060 Unbonded Cap 2 3 09/13/2007 28 2 4 09/13/2007 28 Remarks: Cont: Station 11+80 to 13+45, 15+10 to 16+80,18+00 to 19+90, 21+10 to 22+80 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 exdusive 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 2 of 3 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, 8te 600, Houston, TX 77040 4421 Freidrich, 8te 195, Austin, TX 78744 Corporate Phone: (214) 630-9745 Report of Concrete Compressive Strength Test Report No.: 295814 Project No.: 0612510 Date of Service: 08/16/2007 Report Date: 09/11/2007 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.): 6" 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 Batch time: 03: 10pm Concrete: 900F Ticket No: NA Unit Weight (pet): NA Measured Slump (inches) 5.0 Mix Design I.D.: 5194 Placement Date: 08/16/2007 Weather Conditions: Clear Time Sampled: 03:15pm Temperature - Air: 930F Truck No: NA Air Content: 5.5% Overall Placement Location: Paving, Dividend St. median, Station 0+00 to 2+50, eastbound Dividend turn lanes at median, (cont) Sample Location: Dividend turn lane, Station 18+30 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 08/20/2007 4 6.00 28.27 78,910 2,790 Unbonded Cap 3 2 08/23/2007 7 6.00 28.27 90,720 3,210 Unbonded Cap 3 3 09/13/2007 28 3 4 09/13/2007 28 Remarks: Cont: Station 11+80 to 13+45, 15+10 to 16+80, 18+00 to 19+90, 21+10 to 22+80 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. Lee Stone 1-cc City of Coppell Attn: Mr. Larry Davis Started: 06:15am Finished: 05:45pm 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 3 of 3 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.: 294959 Project No.: 0612510 Date of Service: 08/08/2007 Report Date: 09/11/2007 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. Contractor: Concrete Supplier: LMC Plant: 3 Specification Requirements Strength: 4,000 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 -\8n,: C ..i 064 ASTM C-138 ASTM C-39 PROJECT DATA Mix Design I.D.: 1701 Placement Date: 08/08/2007 Weather Conditions: Clear Time Sampled: 03:45pm Temperature - Air: 960F Truck No: 966 Air Content: 4.0% Overall Placement Location: Box culvert, Station 0+48.89, line B Batch time: 02:51 pm Concrete: 950F Ticket No: 3234804 Unit Weight (pet): NA Measured Slump (inches) 4.0 Sample Location: Same as above REPORT OF TESTS Concrete Compressive Cylinder 6" x 12" Cylinder Maximum Compressive Marked Date Age Diameter Area Load Strength Fracture Set No. Tested (days) (in) (in2) (Ibs) (psi) Type 1 1 08/15/2007 7 6.00 28.27 102,060 3,610 Unbonded Cap 1 2 09/05/2007 28 6.00 28.27 128,110 4,530 Cone/Split 1 3 09/05/2007 28 6.00 28.27 130,160 4,600 Cone/Split Average 4,570 4 10/03/2007 56 Remarks: Water added at site: 5 gallons Started: 02:30pm Finished: 04:00pm Rone Engineering p~~ Technician: Tommy Chapa 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 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. (CH/LB) Page 1 of 1 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.: 295024 Project No.: 0612510 Date of Service: 08/09/2007 Report Date: 09/11/2007 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: 08/09/2007 Weather Conditions: Clear Time Sampled: 07:15am Temperature - Air: 790F Truck No: NA Air Content: 3.8% Overall Placement Location: Paving for Dividend Street, Station 0+00 to 19+00, eastbound lane Measured Slump (inches) 1.0 Batch time: 07:05am Concrete: 760F Ticket No: NA Unit Weight (pet): NA Sample Location: Station 1 +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) (in') (Ibs) (psi) Type 1 1 08/16/2007 7 6.00 28.27 83,610 2,960 Unbonded Cap 1 2 09/06/2007 28 6.00 28.27 104,930 3,710 Shear 1 3 09/06/2007 28 6.00 28.27 102,360 3,620 Cone/Split Average 3,670 1 4 08/14/2007 5 6.00 28.27 75,950 2,690 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. (LBILB) 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.: 295024 Project No.: 0612510 Date of Service: 08/09/2007 Report Date: 09/11/2007 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: 08/09/2007 Weather Conditions: Clear Time Sampled: 08:10am Temperature - Air: 840F Truck No: NA Air Content: 3.6% Overall Placement Location: Paving for Dividend Street, Station 0+00 to 19+00, eastbound lane Measured Slump (inches) 0.75 Batch time: 08:00am Concrete: 800F Ticket No: NA Unit Weight (pet): NA Sample Location: Station 2+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) (in2) (Ibs) (psi) Type 2 1 08/16/2007 7 6.00 28.27 88,620 3,130 Unbonded Cap 2 2 09/06/2007 28 6.00 28.27 109,910 3,890 Shear 2 3 09/06/2007 28 6.00 28.27 112,460 3,980 Cone/Shear Average 3,930 2 4 08/14/2007 5 6.00 28.27 84,020 2,970 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 exciusive 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 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.: 295024 Project No.: 0612510 Date of Service: 08/09/2007 Report Date: 09/11/2007 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: 08/09/2007 Weather Conditions: Clear Time Sampled: 08:45am Temperature - Air: 850F Truck No: NA Air Content: 3.2% Overall Placement Location: Paving for Dividend Street, Station 0+00 to 19+00, eastbound lane Measured Slump (inches) 0.25 Batch time: 08:40am Concrete: 840F Ticket No: NA Unit Weight (pet): NA Sample Location: Station 3+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) (in') (Ibs) (psi) Type 3 1 08/16/2007 7 6.00 28.27 90,760 3,210 Unbonded Cap 3 2 09/06/2007 28 6.00 28.27 126,150 4,460 Cone/Split 3 3 09/06/2007 28 6.00 28.27 110,010 3,890 Cone/Split Average 4,180 3 4 08/14/2007 5 6.00 28.27 81,080 2,870 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.: 295024 Project No.: 0612510 Date of Service: 08/09/2007 Report Date: 09/11/2007 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: 08/09/2007 Weather Conditions: Clear Time Sampled: 09:15am Temperature - Air: 880F Truck No: NA Air Content: 3.5% Overall Placement Location: Paving for Dividend Street, Station 0+00 to 19+00, eastbound lane Measured Slump (inches) 0.75 Batch time: 09:10am Concrete: 870F Ticket No: NA Unit Weight (pcf): NA Sample Location: Station 5+80 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 08/16/2007 7 6.00 28.27 102,510 3,630 Unbonded Cap 4 2 09/06/2007 28 6.00 28.27 122,190 4,320 Cone/Shear 4 3 09/06/2007 28 6.00 28.27 124,850 4,420 Cone/Split Average 4,370 4 4 08/14/2007 5 6.00 28.27 88,340 3,120 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. (LBILB) 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.: 295024 Project No.: 0612510 Date of Service: 08/09/2007 Report Date: 09/11/2007 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: 08/09/2007 Weather Conditions: Clear Time Sampled: 1 0:45am Temperature - Air: 880F Truck No: NA Air Content: 3.8% Overall Placement Location: Paving for Dividend Street, Station 0+00 to 19+00, eastbound lane Measured Slump (inches) 0.75 Batch time: 10:40am Concrete: 920F Ticket No: NA Unit Weight (pet): NA Sample Location: Station 9+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) (in2) (Ibs) (psi) Type 5 1 08/16/2007 7 6.00 28.27 87,900 3,110 Unbonded Cap 5 2 09/06/2007 28 6.00 28.27 110,130 3,900 Cone/Split 5 3 09/06/2007 28 6.00 28.27 102,460 3,620 Cone/Shear Average 3,760 5 4 08/14/2007 5 6.00 28.27 80,630 2,850 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.: 295024 Project No.: 0612510 Date of Service: 08/09/2007 Report Date: 09/11/2007 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-W6.1 ASTM C-138 ASTM C-39 Mix Design 1.0.: 5194 Placement Date: 08/09/2007 Weather Conditions: Clear Time Sampled: 12:00pm Temperature - Air: 930F Truck No: NA Air Content: 4.3% Overall Placement Location: Paving for Dividend Street, Station 0+00 to 19+00, eastbound lane Measured Slump (inches) 1.0 Batch time: 11 :50am Concrete: 950F Ticket No: NA Unit Weight (pet): NA Sample Location: Station 11 +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 6 1 08/16/2007 7 6.00 28.27 82,370 2,910 Unbonded Cap 6 2 09/06/2007 28 6.00 28.27 99,500 3,520 Cone/Split 6 3 09/06/2007 28 6.00 28.27 104,410 3,690 Cone/Shear Average 3,610 6 4 08/14/2007 5 6.00 28.27 80,320 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.: 295024 Project No.: 0612510 Date of Service: 08/09/2007 Report Date: 09/11/2007 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 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 ASTM C-1064 ASTM C-138 ASTM C-39 Mix Design I.D.: 5194 Placement Date: 08/09/2007 Weather Conditions: Clear Time Sampled: 12:50pm Temperature - Air: 930F Truck No: NA Air Content: 4.7% Overall Placement Location: Paving for Dividend Street, Station 0+00 to 19+00, eastbound lane Measured Slump (inches) 1.25 Batch time: 12:40pm Concrete: 940F Ticket No: NA Unit Weight (pcf): NA Sample Location: Station 13+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 7 1 08/16/2007 7 6.00 28.27 55,510 1,960 Unbonded Cap 7 2 09/06/2007 28 6.00 28.27 81,450 2,880 Cone/Split 7 3 09/06/2007 28 6.00 28.27 85,680 3,030 Cone/Split Average 2,960 * 7 4 08/14/2007 5 6.00 28.27 59,240 2,100 Unbonded Cap * Does not comply with specified strength LIMITATIONS: The test results presented herein were prepared based upon the specific samples provided for testing. We assume no responsibility for variation in quality (composition, appearance, etc.) or any other feature of similar subject matter provided by persons or conditions over which we have no control. Our letters and reports are for the exclusive use of the clients to whom they are addressed and shall not be reproduced except in full without the written approval of Rone Engineering Services, Ltd. (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.: 295024 Project No.: 0612510 Date of Service: 08/09/2007 Report Date: 09/11/2007 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: 08/09/2007 Weather Conditions: Clear Time Sampled: 01 :40pm Temperature - Air: 960F Truck No: NA Air Content: 4.2% Overall Placement Location: Paving for Dividend Street, Station 0+00 to 19+00, eastbound lane Measured Slump (inches) 1.0 Batch time: 01:35pm Concrete: 960F Ticket No: NA Unit Weight (pcf): NA Sample Location: Station 15+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) (in') (Ibs) (psi) Type 8 1 08/16/2007 7 6.00 28.27 76,380 2,700 Unbonded Cap 8 2 09/06/2007 28 6.00 28.27 94,400 3,340 Cone/Split 8 3 09/06/2007 28 6.00 28.27 95,880 3,390 Shear Average 3,360 * 8 4 08/14/2007 5 6.00 28.27 73,520 2,600 Unbonded Cap * Does not comply with specified strength LIMITATIONS: The test results presented herein were prepared based upon the specific samples provided for testing. We assume no responsibility for variation in quality (composition, appearance, etc.) or any other feature of similar subject matter provided by persons or conditions over which we have no control. Our letters and reports are for the exclusive use of the clients to whom they are addressed and shall not be reproduced except in full without the written approval of Rone Engineering Services, LId. (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.: 295024 Project No.: 0612510 Date of Service: 08/09/2007 Report Date: 09/11/2007 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: 08/09/2007 Weather Conditions: Clear Time Sampled: 02:10pm Temperature - Air: 960F Truck No: NA Air Content: 4.1 % Overall Placement Location: Paving for Dividend Street, Station 0+00 to 19+00, eastbound lane Measured Slump (inches) 1.25 Batch time: 02:00pm Concrete: 1000F Ticket No: NA Unit Weight (pet): NA Sample Location: Station 16+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 08/16/2007 7 6.00 28.27 84,670 2,990 Unbonded Cap 9 2 09/06/2007 28 6.00 28.27 106,330 3,760 Cone/Split 9 3 09/06/2007 28 6.00 28.27 101,820 3,600 Cone/Split Average 3,680 9 4 08/14/2007 5 6.00 28.27 85,820 3,040 Unbonded Cap Started: 06:00am Finished: 03:45pm Rone Engineering p~~ 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 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 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, 8te 600, Houston, TX 77040 4421 Freldrich, 8te 195, Austin, TX 78744 Corporate Phone: (214) 630-9745 Report of Concrete Compressive Strength Test Report No.: 295814 Project No.: 0612510 Date of Service: 08/16/2007 Report Date: 09/11/2007 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.): 6" 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 Batch time: 08:35am Concrete: 910F Ticket No: NA Unit Weight (pet): NA Measured Slump (inches) 4.5 Mix Design 1.0.: 5194 Placement Date: 08/16/2007 Weather Conditions: Clear Time Sampled: 08:45am Temperature - Air: 890F Truck No: NA Air Content: 5.1 % Overall Placement Location: Paving, Dividend SI. median, Station 0+00 to 2+50, eastbound Dividend turn lanes at median, (cont) Sample Location: Dividend SI. median, Station 2+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 1 1 08/20/2007 4 6.00 28.27 71 ,090 2,510 Unbonded Cap 1 2 08/23/2007 7 6.00 28.27 79,320 2,810 Unbonded Cap 1 3 09/13/2007 28 1 4 09/13/2007 28 Remarks: Cont: Station 11+80 to 13+45,15+10 to 16+80,18+00 to 19+90, 21+10 to 22+80 LIMITATIONS: The test results presented herein were prepared based upon the specific samples provided for testing. We assume no responsibility for variation in quality (composition, appearance, etc.) or any other feature of similar subject matter provided by persons or conditions over which we have no control. Our letters and reports are for the exclusive use of the clients to whom they are addressed and shall not be reproduced except in full without the written approval of Rone Engineering Services, Ltd. (LB/LB) Page 1 of 3 Rone Engineering . 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.: 295814 Project No.: 0612510 Date of Service: 08/16/2007 Report Date: 09/11/2007 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.): 6" 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 Batch time: 12:00pm Concrete: 900F Ticket No: NA Unit Weight (pcf): NA Measured Slump (inches) 1.25 Mix Design 1.0.: 5194 Placement Date: 08/16/2007 Weather Conditions: Clear Time Sampled: 12:05pm Temperature - Air: 900F Truck No: NA Air Content: 4.7% Overall Placement Location: Paving, Dividend St. median, Station 0+00 to 2+50, eastbound Dividend turn lanes at median, (cont) Sample Location: Dividend turn lane, Station 12+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 2 1 08/20/2007 4 6.00 28.27 82,880 2,930 Unbonded Cap 2 2 08/23/2007 7 6.00 28.27 86,590 3,060 Unbonded Cap 2 3 09/13/2007 28 2 4 09/13/2007 28 Remarks: Cont: Station 11+80 to 13+45, 15+10 to 16+80, 18+00 to 19+90, 21+10 to 22+80 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 2 of 3 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 Freldrich, Ste 195, Austin, TX 78744 Corporate Phone: (214) 630-9745 Report of Concrete Compressive Strength Test Report No.: 295814 Project No.: 0612510 Date of Service: 08/16/2007 Report Date: 09/11/2007 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.): 6" 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 Batch time: 03: 1 Opm Concrete: 900F Ticket No: NA Unit Weight (pcf): NA Measured Slump (inches) 5.0 Mix Design I.D.: 5194 Placement Date: 08/16/2007 Weather Conditions: Clear Time Sampled: 03:15pm Temperature - Air: 930F Truck No: NA Air Content: 5.5% Overall Placement Location: Paving, Dividend SI. median, Station 0+00 to 2+50, eastbound Dividend turn lanes at median, (cont) Sample Location: Dividend turn lane, Station 18+30 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 08/20/2007 4 6.00 28.27 78,910 2,790 Unbonded Cap 3 2 08/23/2007 7 6.00 28.27 90,720 3,210 Unbonded Cap 3 3 09/13/2007 28 3 4 09/13/2007 28 Remarks: Cont: Station 11 +80 to 13+45, 15+10 to 16+80, 18+00 to 19+90, 21 +1 0 to 22+80 Technician: Ryan Rawlinson Report Distribution: Orig: Duke Construction, LP (Dallas, TX) Alln: Mr. Alex Bennell PE (1-ec copy) 1-cc City of Coppell Alln: Mr. Lee Stone 1-cc City of Coppell Attn: Mr. Larry Davis Started: 06:15am Finished: 05:45pm Rone Engineering p-~J 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 3 of 3 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.: 295294 Project No.: 0612510 Date of Service: 08/11/2007 Report Date: 09/11/2007 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: Lacey 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 Batch time: 06:55am Concrete: 850F Ticket No: NA Unit Weight (pcf): NA Measured Slump (inches) 3.0 Mix Design I.D.: 5194 Placement Date: 08/11/2007 Weather Conditions: Clear Time Sampled: 07:00am Temperature - Air: 830F Truck No: NA Air Content: 3.9% Overall Placement Location: Paving, median and turn lanes, Beltline Rd. into project. 300' north, 15' west from south end (cont) Sample Location: 280' north, 13' west from south end turn lane 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 08/18/2007 7 6.00 28.27 60,130 2,130 Unbonded Cap 1 2 09/08/2007 28 6.00 28.27 78,060 2,760 Cone/Split 1 3 09/08/2007 28 6.00 28.27 69,520 2,460 Cone/Split Average 2,610 * 4 08/15/2007 4 6.00 28.27 52,870 1,870 Unbonded Cap * Does not comply with specified strength Remarks: Cont: turn lane paving for Dividend St. Station 49+00 to 47+50 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. (DMlLB) Page 1 of 2 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: (2141630-9745 Report of Concrete Compressive Strength Test Report No.: 295294 Project No.: 0612510 Date of Service: 08/11/2007 Report Date: 09/11/2007 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: Lacey 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 IlSTM C-l064 ASTM C-138 ASTM C-39 Batch time: 10:40am Concrete: 980F Ticket No: NA Unit Weight (pet): NA Measured Slump (inches) 3.75 Mix Design I.D.: 5194 Placement Date: 08/11/2007 Weather Conditions: Clear Time Sampled: 10:45am Temperature - Air: 910F Truck No: NA Air Content: 4.4% Overall Placement Location: Paving, median and tum lanes, Beltline Rd. into project, 300' north, 15' west from south end (cont) Sample Location: 120' north, 7' west from south end turn lane 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 1 08/18/2007 7 6.00 28.27 75,670 2,680 Unbonded Cap 2 2 HOLD Comments: Destroyed in Field 2 3 09/08/2007 28 6.00 28.27 83,240 2,940 Cone/Split 2 4 08/15/2007 4 6.00 28.27 65,350 2,310 Unbonded Cap Started: 05: 15am Finished: 01 :45am 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 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. (DMlLS) Page 2 of 2 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 18744 Corporate Phone: (214) 630-9745 Report of Concrete Compressive Strength Test Report No.: 295394 Project No.: 0612510 Date of Service: 08/13/2007 Report Date: 09/11/2007 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: Lacey 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 A8TM C-1064 ASTM C-138 ASTM C-39 Batch time: 06:40am Concrete: 800F Ticket No: NA Unit Weight (pet): NA Measured Slump (inches) 2.25 Mix Design I.D.: 5194 Placement Date: 08/13/2007 Weather Conditions: Clear Time Sampled: 06:45am Temperature - Air: 740F Truck No: NA Air Content: 4.5% Overall Placement Location: Paving for Dividend Street, eastbound, Station 47+50 - 39+25, point west Station 13+20 Sample Location: Station 46+50, Dividend 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 08/20/2007 7 6.00 28.27 90,700 3,210 Unbonded Cap 1 2 09/10/2007 28 6.00 28.27 112,410 3,980 Cone/Split 1 3 09/10/2007 28 6.00 28.27 113,200 4,000 Cone/Split Average 3,990 4 10/08/2007 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. (CHILB) Page 1 of 8 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.: 295394 Project No.: 0612510 Date of Service: 08/13/2007 Report Date: 09/11/2007 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: Lacey 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 ASTfvl'">1~)64 ASTM C-138 ASTM C-39 Batch time: 07:10am Concrete: 790F Ticket No: NA Unit Weight (pct): NA Measured Slump (inches) 2.0 Mix Design 1.0.: 5194 Placement Date: 08/13/2007 Weather Conditions: Clear Time Sampled: 07: 15am Temperature - Air: 750F Truck No: NA Air Content: 4.3% Overall Placement Location: Paving for Dividend Street, eastbound, Station 47+50 - 39+25, point west Station 13+20 Sample Location: Station 45+50, Dividend 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 08/20/2007 7 6.00 28.27 97,880 3,460 Unbonded Cap 2 2 09/10/2007 28 6.00 28.27 122,090 4,320 Cone/Split 2 3 09/10/2007 28 6.00 28.27 109,830 3,880 Cone/Split Average 4,100 2 4 10/08/2007 56 LIMITATIONS: The test results presented herein were prepared based upon the specific samples provided for testing. We assume no responsibility for variation in quality (composition, appearance, etc.) or any other feature of similar subject matter provided by persons or conditions over which we have no control. Our letters and reports are for the exclusive use of the clients to whom they are addressed and shall not be reproduced except in full without the written approval of Rone Engineering Services, Ltd. (CH/LB) Page 2 of 8 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.: 295394 Project No.: 0612510 Date of Service: 08/13/2007 Report Date: 09/11/2007 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 REPORT OF TESTS Concrete Compressive Cylinder 6" x 12" Maximum Compressive Age Diameter Area Load Strength Fracture (days) (in) (in') (Ibs) (psi) Type 7 6.00 28.27 70,980 2,510 Unbonded Cap 28 6.00 28.27 90,420 3,200 Cone/Split 28 6.00 28.27 86,920 3,070 Shear Average 3,140 * 56 Contractor: Concrete Supplier: Lacey 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 Cylinder Marked Date Set No. Tested 3 1 08/20/2007 3 2 09/10/2007 3 3 09/10/2007 3 4 10/08/2007 Batch time: 07:50am Concrete: 810F Ticket No: NA Unit Weight (pet): NA Measured Slump (inches) 3.5 Mix Design I.D.: 5194 Placement Date: 08/13/2007 Weather Conditions: Clear Time Sampled: 07:55am Temperature - Air: nOF Truck No: NA Air Content: 4.9% Overall Placement Location: Paving for Dividend Street, eastbound, Station 47+50 - 39+25, point west Station 13+20 Sample Location: Station 42+50, Dividend * Does not comply with specified strength LIMITATIONS: The test results presented herein were prepared based upon the specific samples provided for testing. We assume no responsibility for variation in quality (composition, appearance, etc.) or any other feature of similar subject matter provided by persons or conditions over which we have no control. Our letters and reports are for the exclusive use of the clients to whom they are addressed and shall not be reproduced except in full without the written approval of Rone Engineering Services, Ltd. (CH/LB) Page 3 of 8 Rone Engineering . Client: Duke Construction, LP 14241 Dallas Pkwy, Ste 1000 Dallas, TX 75254-2936 8908 Ambassador Row, Dallas, TX 15241 1101 W Little York, Ste 600, Houston, TX 11040 4421 Freidrich, Ste 195, Austin, TX 18144 Corporate Phone: (214) 630-9145 Report of Concrete Compressive Strength Test Report No.: 295394 Project No.: 0612510 Date of Service: 08/13/2007 Report Date: 09/11/2007 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 REPORT OF TESTS Concrete Compressive Cylinder 6" x 12" Maximum Compressive Age Diameter Area Load Strength Fracture (days) (in) (in') (Ibs) (psi) Type 7 6.00 28.27 80,870 2,860 Unbonded Cap 28 6.00 28.27 96,050 3,400 Cone/Split 28 6.00 28.27 95,350 3,370 Cone/Shear Average 3,380 * 56 Contractor: Concrete Supplier: Lacey 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 A,STM C-1064 ASTM C-138 ASTM C-39 Cylinder Marked Date Set No. Tested 4 1 08/20/2007 4 2 09/10/2007 4 3 09/10/2007 4 4 10/08/2007 Batch time: 08:25am Concrete: 850F Ticket No: NA Unit Weight (pet): NA Measured Slump (inches) 1.75 Mix Design 1.0.: 5194 Placement Date: 08/13/2007 Weather Conditions: Clear Time Sampled: 08:30am Temperature - Air: 790F Truck No: NA Air Content: 4.2% Overall Placement Location: Paving for Dividend Street, eastbound, Station 47+50 - 39+25, point west Station 13+20 Sample Location: Station 40+25, Dividend * Does not comply with specified strength LIMITATIONS: The test results presented herein were prepared based upon the specific samples provided for testing. We assume no responsibility for variation in quality (composition, appearance, etc.) or any other feature of similar subject matter provided by persons or conditions over which we have no control. Our letters and reports are for the exclusive use of the clients to whom they are addressed and shall not be reproduced except in full without the written approval of Rone Engineering Services, Ltd. (CH/LB) Page 4 of 8 Rone Engineering . Client: Duke Construction, LP 14241 Dallas Pkwy, Ste 1000 Dallas, TX 75254-2936 8908 Ambassador Row, Dallas, TX 75247 7701 W LitUe 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.: 295394 Project No.: 0612510 Date of Service: 08/13/2007 Report Date: 09/11/2007 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 REPORT OF TESTS Concrete Compressive Cylinder 6" x 12" Maximum Compressive Age Diameter Area Load Strength Fracture (days) (in) (in') (Ibs) (psi) Type 7 6.00 28.27 78,480 2,780 Unbonded Cap 28 6.00 28.27 93,000 3,290 Cone/Split 28 6.00 28.27 97,400 3,440 Cone/Split Average 3,370 * 56 Contractor: Concrete Supplier: Lacey 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 Cylinder Marked Date Set No. Tested 5 1 08/20/2007 5 2 09/10/2007 5 3 09/10/2007 5 4 10/08/2007 Batch time: 10:55am Concrete: 980F Ticket No: NA Unit Weight (pet): NA Measured Slump (inches) 1.75 Mix Design 1.0.: 5194 Placement Date: 08/13/2007 Weather Conditions: Clear Time Sampled: 11 :OOam Temperature - Air: 920F Truck No: NA Air Content: 4.6% Overall Placement Location: Paving for Dividend Street, eastbound, Station 47+50 - 39+25, point west Station 13+20 Sample Location: Station 13+00, point west * Does not comply with specified strength LIMITATIONS: The test results presented herein were prepared based upon the specific samples provided for testing. We assume no responsibility for variation in quality (composition, appearance, etc.) or any other feature of similar subject matter provided by persons or conditions over which we have no control. Our letters and reports are for the exclusive use of the clients to whom they are addressed and shall not be reproduced except in full without the written approval of Rone Engineering Services, Ltd. (CH/LB) Page 5 of 8 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.: 295394 Project No.: 0612510 Date of Service: 08/13/2007 Report Date: 09/11/2007 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: Lacey 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 ~STM c- i 06<+ ASTM C-138 ASTM C-39 Batch time: 11 :45am Concrete: 1000F Ticket No: NA Unit Weight (pet): NA Measured Slump (inches) 1.25 Mix Design 1.0.: 5194 Placement Date: 08/13/2007 Weather Conditions: Clear Time Sampled: 11 :50am Temperature - Air: 940F Truck No: NA Air Content: 4.5% Overall Placement Location: Paving for Dividend Street, eastbound, Station 47+50 - 39+25, point west Station 13+20 Sample Location: Station 11+75, point west 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 6 1 08/20/2007 7 6.00 28.27 70,670 2,500 Unbonded Cap 6 2 09/10/2007 28 6.00 28.27 102,600 3,630 Cone/Split 6 3 09/10/2007 28 6.00 28.27 98,870 3,500 Cone/Split Average 3,560 * 6 4 10/08/2007 56 * Does not comply with specified strength LIMITATIONS: The test results presented herein were prepared based upon the specific samples provided for testing. We assume no responsibility for variation in quality (composition, appearance, etc.) or any other feature of similar subject matter provided by persons or conditions over which we have no control. Our letters and reports are for the exclusive use of the clients to whom they are addressed and shall not be reproduced except in full without the written approval of Rone Engineering Services, Ltd. (CH/LB) Page 6 of 8 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.: 295394 Project No.: 0612510 Date of Service: 08/13/2007 Report Date: 09/11/2007 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: Lacey 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 A8TM '-:-1064 ASTM C-138 ASTM C-39 Batch time: 01:15pm Concrete: 1020F Ticket No: NA Unit Weight (pet): NA Measu red Slump (inches) 1.0 Mix Design 1.0.: 5194 Placement Date: 08/13/2007 Weather Conditions: Clear Time Sampled: 01 :20pm Temperature - Air: 1030F Truck No: NA Air Content: 4.0% Overall Placement Location: Paving for Dividend Street, eastbound, Station 47+50 - 39+25, point west Station 13+20 Sample Location: Station 9+50, point west 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 7 1 08/20/2007 7 6.00 28.27 92,340 3,270 Unbonded Cap 7 2 09/10/2007 28 6.00 28.27 108,400 3,830 Cone/Split 7 3 09/10/2007 28 6.00 28.27 103,130 3,650 Cone/Split Average 3,740 7 4 10/08/2007 56 LIMITATIONS: The test results presented herein were prepared based upon the specific samples provided for testing. We assume no responsibility for variation in quality (composition, appearance, etc.) or any other feature of similar subject matter provided by persons or conditions over Which we have no control. Our letters and reports are for the exclusive use of the clients to whom they are addressed and shall not be reproduced except in full without the written approval of Rone Engineering Services, Ltd. (CH/LB) Page 7 of 8 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.: 295394 Project No.: 0612510 Date of Service: 08/13/2007 Report Date: 09/11/2007 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 REPORT OF TESTS Concrete Compressive Cylinder 6" x 12" Maximum Compressive Age Diameter Area Load Strength Fracture (days) (in) (in') (Ibs) (psi) Type 7 6.00 28.27 72,860 2,580 Unbonded Cap 28 6.00 28.27 92,010 3,250 Cone/Split 28 6.00 28.27 89,980 3,180 Cone/Split Average 3,220 * 56 Contractor: Concrete Supplier: Lacey 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 Cylinder Marked Date Set No. Tested 8 1 08/20/2007 8 2 09/10/2007 8 3 09/10/2007 8 4 10/08/2007 Batch time: 02: 15pm Concrete: 1050F Ticket No: NA Unit Weight (pet): NA Measured Slump (inches) 1.75 Mix Design 1.0.: 5194 Placement Date: 08/13/2007 Weather Conditions: Clear Time Sampled: 02:20pm Temperature - Air: 1030F Truck No: NA Air Content: 4.1 % Overall Placement Location: Paving for Dividend Street, eastbound, Station 47+50 - 39+25, point west Station 13+20 Sample Location: Station 7+00, point west * Does not comply with specified strength Started: 05:15am Finished: 04:45pm Rone Engineering p~~ 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 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. (CH/LB) Page 8 of 8