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Duke Lesley-LR071011 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: 10/11/2007 Project: Lesley Infrastructure Services: Obtain samples of fresh concrete at the placement locations, perfonrn 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: 07: 1 Oam Concrete: 790F Ticket No: NA Unit Weight (pcf): NA Measured Slump (inches) 2.0 Mix Design I.D.: 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 6.00 28.27 120,910 4,280 Cone/Split LIMITATIONS: The test results presented herein were prepared based upon the specific samples provided for testing. We assume no responsibility for variation in quality (composition, appearance, etc.) or any other feature of similar subject matter provided by persons or conditions over which we have no control. Our letters and reports are for the exclusive use of the clients to whom they are addressed and shall not be reproduced except in full without the written approval of Rone Engineering Services, Ltd. (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: 10/11/2007 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 ~a~: On~e 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 Batch time: 07:50am Concrete: 810F Ticket No: NA Unit Weight (pct): NA Measured Slump (inches) 3.5 Mix Design 1.0.: 5194 Placement Date: 08/13/2007 Weather Conditions: Clear Time Sampled: 07:55am Temperature - Air: 770F 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 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 7 6.00 28.27 70,980 2,510 Unbonded Cap 3 2 09/10/2007 28 6.00 28.27 90,420 3,200 Cone/Split 3 3 09/10/2007 28 6.00 28.27 86,920 3,070 Shear Average 3,140 * ~ 4 10/08/2007 56 6.00 28.27 99,820 3,530 Cone/Shear * Does not comply with specified strength LIMITATIONS: The test results presented herein were prepared based upon the specific samples provided for testing. We assume no responsibility for variation in quality (composition, appearance, etc.) or any other feature of similar subject matter provided by persons or conditions over which we have no control. Our letters and reports are for the exclusive use of the clients to whom they are addressed and shall not be reproduced except in full without the written approval of Rone Engineering Services, Lid. (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 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: 10/11/2007 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: 08:25am Concrete: 850F Ticket No: NA Unit Weight (pet): NA Measured Slump (inches) 1.75 Mix Design I.D.: 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 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 08/20/2007 7 6.00 28.27 80,870 2,860 Unbonded Cap 4 2 09/10/2007 28 6.00 28.27 96,050 3,400 Cone/Split 4 3 09/10/2007 28 6.00 28.27 95,350 3,370 Cone/Shear Average 3,380 * 4 4 10108/2007 56 6.00 28.27 106,200 3,760 Cone/Split * Does not comply with spec'ified 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 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 Com pressive Strength Test Report No.: 295394 Project No.: 0612510 Date of Service: 08/13/2007 Report Date: 10/11/2007 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-1 064 ASTM C-138 ASTM C-39 Batch time: 10:55am Concrete: 980F Ticket No: NA Unit Weight (pet): NA Measured Slump (inches) 1.75 Mix Design I.D.: 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 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 08/20/2007 7 6.00 28.27 78,480 2,780 Unbonded Cap 5 2 09/10/2007 28 6.00 28.27 93,000 3,290 Cone/Split 5 3 09/10/2007 28 6.00 28.27 97,400 3,440 Cone/Split Average 3,370 * 5 4 10/08/2007 56 6.00 28.27 108,320 3,830 Cone/Shear * Does not comply with specified strength LIMITATIONS: The test results presented herein were prepared based upon the specific samples provided for testing. We assume no responsibility for variation in quality (composition, appearance, etc.) or any other feature of similar subject matter provided by persons or conditions over which we have no control. Our letters and reports are for the exclusive use of the clients to whom they are addressed and shall not be reproduced except in full without the written approval of Rone Engineering Services, Ltd. (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: 10/11/2007 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: 11 :45am Concrete: 1000F Ticket No: NA Unit Weight (pet): NA Measured Slump (inches) 1.25 Mix Design I.D.: 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 * W" 4 1 0/08/2007 56 6.00 28.27 1 01 ,990 3,610 Cone/Shear * Does not comply with specified strength LIMITATIONS: The test results presented herein were prepared based upon the specific samples provided for testing. We assume no responsibility for variation in quality (composition, appearance, etc.) or any other feature of similar subject matter provided by persons or conditions over which we have no control. Our letters and reports are for the exclusive use of the clients to whom they are addressed and shall not be reproduced except in full without the written approval of Rone Engineering Services, Ltd. (CHILB) 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: 10/11/2007 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: 01: 15pm Concrete: 1020F Ticket No: NA Unit Weight (pcf): NA Measured 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) (in2) (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 10/0((2007 Average 3,740 7 4 56 6.00 28.27 1',9,900 4,240 Cone/Shear 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: 10/11/2007 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: 02:15pm Concrete: 1050F Ticket No: NA Unit Weight (pet): NA Measured Slump (inches) 1.75 Mix Design I.D.: 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 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 08/20/2007 7 6.00 28.27 72,860 2,580 Unbonded Cap 8 2 09/10/2007 28 6.00 28.27 92,010, 3,250 Cone/Split 8 3 09/10/2007 28 6.00 28.27 89,980 3,180 Cone/Split Average 3,220 * 8 4 10/08/2007 56 r.~" 6.00 28.27 93,180 3,300 Cone/Shear e * Does not comply with specified strength 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: 04:45pm Rone Engineering ,~.~ 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 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: 10/11/2007 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: 06:40am 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 09/10/209'- 28 c.' 6.00 28.27 113,200 4,000 Cone/Split - . , Average 3,990 1 4 10/08120.56 6.00 28.27 116,020 4,100 Cone/S~~r 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 8