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Gateway BP(3.1)-LR070405Rone Engineering Client: Transwestern Commercial Services 5001 Spring Valley Dallas, TX 75244 Project: Gateway Business Center Coppell, Texas Services: Perform In Place Density Testing Contractor: Constructors Associates Test Method: ASTM D -2922 ASTM D -3017 M/D No. 277809 Dark Brown Clay Test No 1 2 3 4 5 Utility backfill 6" sanitary sewer line grade Utility backfill 6" sanitary sewer line grade Utility backfill 6" sanitary sewer line grade Utility backfill 6" sanitary sewer line grade Utility backfill 6" sanitary sewer line grade Test Location Description C, Station 0 +50, 5' below C, Station 0 +50, 4' below C, Station 0 +50, 3' below C, Station 2 +00, 5' below C, Station 2 +00, 4' below PROJECT DATA Gauge: Troxler 3430 Gauge Serial No: 35518 Test Mode: DT MOISTURE DENSITY RELATIONS Moisture 27.0 FIELD DENSITY TESTS Probe Depth MID Moisture No. Report No.: 282533 Project No.: 0712786 Date of Service: 03/22/2007 Report Date: 04/05/2007 6" 277809 29.8 112.0 6" 277809 29.1 111.8 6" 277809 29.1 111.5 6" 277809 30.5 112.2 6" 277809 30.1 113.1 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 In -Place Density Testing Standard Counts Moisture Density Current: 741 Current: 2642 Previous: 739 Previous: 2640 Maximum Density (pcf) 89.0 Optimum +4 95 min Wet Density (pcf) Project Requirements Moisture Density Dry Density Density (pcf) max) 86.3 97 86.6 97 86.4 97 86.0 97 86.9 98 LIMITATIONS: The test results presented herein were prepared based upon the specific samples provided for testing. We assume no responsibility for variation in quality (composition, appearance, etc.) or any other feature of similar subject matter provided by persons or conditions over which we have no control. Our letters and reports are for the exclusive use of the clients to whom they are addressed and shall not be reproduced except in full without the written approval of Rone Engineering Services, Ltd. (TM/KG) Page 1 of 3 Rone Engineering Client: Transwestern Commercial Services 5001 Spring Valley Dallas, TX 75244 Project: Gateway Business Center Coppell, Texas Services: Perform In -Place Density Testing FIELD DENSITY TESTS 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 In -Place Density Testing Report No.: 282533 Project No.: 0712786 Date of Service: 03/22/2007 Report Date: 04/05/2007 Test Probe M/D Moisture Wet Density Dry Density Density No Test Location Depth No. (pcf) (pcf) max) Utility backfill 6 6" sanitary sewer line C, Station 2 +00, 3' below 6" 277809 29.5 112.5 86.9 98 grade LIMITATIONS: The test results presented herein were prepared based upon the specific samples provided for testing. We assume no responsibility for variation in quality (composition, appearance, etc.) or any other feature of similar subject matter provided by persons or conditions over which we have no control. Our letters and reports are for the exclusive use of the clients to whom they are addressed and shall not be reproduced except in full without the written approval of Rone Engineering Services, Ltd. (TM /KG) Page 2 of 3 Rone Engineering Client: Project: Gateway Business Center Coppell, Texas Services: Perform In Place Density Testing Contractor: Constructors Associates Test Method: ASTM D -2922 ASTM D -3017 M/D No. Transwestern Commercial Services 5001 Spring Valley Dallas, TX 75244 277811 Tannish Brown Dark Brown Silty Clay Test No Utility backfill 1 6" sanitary sewer below grade Utility backfill 2 6" sanitary sewer below grade Utility backfill 3 6" sanitary sewer below grade Utility backfill 4 6" sanitary sewer below grade Utility backfill 5 6" sanitary sewer below grade Test Location line, 2100' from line, 2100' from line, 2100' from line, 2100' from line, 2100' from Description Gauge: Troxler 3430 Gauge Serial No: 35518 Test Mode: DT MOISTURE DENSITY RELATIONS east end, 8' east end, 7' east end, 6' east end, 5' east end, 4' PROJECT DATA Moisture 24.0 FIELD DENSITY TESTS Maximum Density (pcf) 94.0 Probe M/D Moisture Depth No. 6" 277811 26.8 119.2 6" 277811 25.7 118.9 6" 277811 27.0 118.7 6" 277811 26.6 119.3 6" 277811 24.7 112.7 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 In -Place Density Testing Report No.: 282888 Project No.: 0712786 Date of Service: 03/26/2007 Report Date: 04/05/2007 Standard Counts Moisture Density Current: 742 Current: 2628 Previous: 744 Previous: 2627 Project Requirements Moisture Density Optimum +4 95 min Wet Density Dry Density Density (pcf) (pcf) max) 94.0 100 94.6 101 93.5 100 94.2 100 90.4 96 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 /KG) Page 1 of 3 Rone Engineering 1 Client: Transwestern Commercial Services 5001 Spring Valley Dallas, TX 75244 Project: Gateway Business Center Coppell, Texas Services: Perform In -Place Density Testing Test No Test Location FIELD DENSITY TESTS 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 In -Place Density Testing Report No.: 282888 Project No.: 0712786 Date of Service: 03/26/2007 Report Date: 04 /05/2007 Probe M/D Moisture Wet Density Dry Density Density Depth No. (pcf) (pcf) max) Utility backfill 6 6" sanitary sewer line, 2100' from east end, 3' 6" 277811 24.2 112.0 90.2 96 below grade Utility backfill 7 6" sanitary sewer line, 2100' from east end, 2' 6" 277811 24.0 113.0 91.1 97 below grade Utility backfill 8 6" sanitary sewer line, 2100' from east end, 1' 6" 277811 24.2 113.0 91.0 97 below grade 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 /KG) Page 2 of 3 Rone Engineering Client: MID No. Test No 1 2 3 4 5 6 Transwestern Commercial Services 5001 Spring Valley Dallas, TX 75244 Project: Gateway Business Center Coppell, Texas Services: Perform In -Place Density Testing Contractor: Constructors Associates Test Method: ASTM D -2922 ASTM D -3017 277810 Tannish Brown Silty Clay Test Location Description Fill Building pad 2, southwest corner, 25' north, 35' east, 8th lift Fill Building pad 2, southwest comer, 25' north, 70' east, 8th lift Fill Building pad 2, southwest corner, 25' north, 110' east, 8th lift Fill Building pad 2, southwest corner, 75' north, 35' east, 8th lift Fill Building pad 2, southwest corner, 75' north, 70' east, 8th lift Fill Building pad 2, southwest corner, 75' north, 110' east, 8th lift PROJECT DATA Gauge: Troxler 3430 Gauge Serial No: 35518 Test Mode: DT MOISTURE DENSITY RELATIONS Moisture 24.5 FIELD DENSITY TESTS Probe Depth 8908 Ambassador Row, Dallas, TX 75247 7701 W Little York, Ste 600, Houston, TX 77040 4421 Friedrich, Ste 195, Austin, TX 78744 Corporate Phone: (214) 630 -9745 In -Place Density Testing Report No.: 280292 Project No.: 0712786 Date of Service: 03/01/2007 Report Date: 04/05/2007 Standard Counts Moisture Density Current: 744 Current: 2652 Previous: 745 Previous: 2657 Maximum Density Project Requirements (pcf) Moisture Density 93.5 Min +4 92 -96 MID Moisture Wet Density Dry Density Density No. (pcf) (pcf) max) 6" 277810 31.3 116.1 88.4 95 6" 277810 31.6 116.6 88.6 95 6" 277810 32.1 117.3 88.8 95 6" 277810 31.5 116.9 88.9 95 6" 277810 31.7 116.7 88.6 95 6" 277810 32.2 116.1 87.8 94 LIMITATIONS: The test results presented herein were prepared based upon the specific samples provided for testing. We assume no responsibility for variation in quality (composition, appearance, etc.) or any other feature of similar subject matter provided by persons or conditions over which we have no control. Our letters and reports are for the exclusive use of the clients to whom they are addressed and shall not be reproduced except in full without the written approval of Rone Engineering Services, Ltd. (TM /KG) Page 1 of 3 Rone Engineering Client: Transwestern Commercial Services 5001 Spring Valley Dallas, TX 75244 Project: Gateway Business Center Coppell, Texas Services: Perform In -Place Density Testing Test No Test Location Fill 7 Building pad 2, southwest corner, 125' north, 35' east, 8th lift Fill 8 Building pad 2, southwest corner, 125' north, 70' east, 8th lift Fill 9 Building pad 2, southwest corner, 125' north, 110' east, 8th lift Fill 10 Building pad 2, southwest corner, 175' north, 35' east, 8th lift Fill 11 Building pad 2, southwest comer, 175' north, 70' esat, 8th lift Fill 12 Building pad 2, southwest corner, 175' north, 110' east, 8th lift FIELD DENSITY TESTS Probe Depth M/D No. 8908 Ambassador Row, Dallas, TX 75247 7701 W Little York, Ste 600, Houston, TX 77040 4421 Friedrich, Ste 195, Austin, TX 78744 Corporate Phone: (214) 630 -9745 In -Place Density Testing Report No.: 280292 Project No.: 0712786 Date of Service: 03/01/2007 Report Date: 04/05/2007 Moisture Wet Density Dry Density Density (pcf) (pcf) max) 6" 277810 34.4 116.8 86.9 93 6" 277810 33.2 116.7 87.6 94 6" 277810 33.7 116.7 87.3 93 6" 277810 32.4 116.8 88.2 94 6" 277810 32.5 116.5 87.9 94 6" 277810 33.7 116.2 86.9 93 LIMITATIONS: The test results presented herein were prepared based upon the specific samples provided for testing. We assume no responsibility for variation in quality (composition, appearance, etc.) or any other feature of similar subject matter provided by persons or conditions over which we have no control. Our letters and reports are for the exclusive use of the clients to whom they are addressed and shall not be reproduced except in full without the written approval of Rone Engineering Services, Ltd. (TM /KG) Page 2 of 3 Rone Engineering 111111111111111011111111111111 Client: Project: Gateway Business Center Coppell, Texas Services: Perform In Place Density Testing Contractor: Constructors Associates Test Method: ASTM D -2922 ASTM D -3017 MID No. Transwestern Commercial Services 5001 Spring Valley Dallas, TX 75244 277810 Tannish Brown Silty Clay Test No Test Location Description Fill 1 Building pad 2, southwest corner, 25' north, 35' east, 9th lift Fill 2 Building pad 2, southwest corner, 25' north, 70' east, 9th lift Fill 3 Building pad 2, southwest corner, 25' north, 110' east, 9th lift Fill 4 Building pad 2, southwest corner, 75' north, 35, east, 9th lift Fill 5 Building pad 2, southwest comer, 75' north, 70' east, 9th lift Fill 6 Building pad 2, southwest corner, 75' north, 110' east, 9th lift PROJECT DATA Gauge: Troxler 3430 Gauge Serial No: 35518 Test Mode: DT MOISTURE DENSITY RELATIONS Moisture 24.5 Depth No. 8908 Ambassador Row, Dallas, TX 75247 7701 W Little York, Ste 600, Houston, TX 77040 4421 Friedrich, Ste 195, Austin, TX 78744 Corporate Phone: (214) 630 -9745 In -Place Density Testing Report No.: 280459 Project No.: 0712786 Date of Service: 03/02/2007 Report Date: 04/05/2007 Standard Counts Moisture Density Current: 741 Current: 2649 Previous: 744 Previous: 2652 Maximum Density (pcf) 93.5 Project Requirements Moisture Density Minimum +4 92 -96 FIELD DENSITY TESTS Probe MID Moisture Wet Density Dry Density Density (pcf) (pcf) max) 6" 277810 31.3 116.1 88.4 95 6" 277810 31.6 116.6 88.6 95 6" 277810 32.4 116.8 88.2 94 6" 277810 33.7 116.7 87.3 93 6" 277810 33.2 116.7 87.6 94 6" 277810 34.4 116.8 86.9 93 LIMITATIONS: The test results presented herein were prepared based upon the specific samples provided for testing. We assume no responsibility for variation in quality (composition, appearance, etc.) or any other feature of similar subject matter provided by persons or conditions over which we have no control. Our letters and reports are for the exclusive use of the clients to whom they are addressed and shall not be reproduced except in full without the written approval of Rone Engineering Services, Ltd. (TM /KG) Page 1 of 3 Rone Engineering Client: Transwestem Commercial Services 5001 Spring Valley Dallas, TX 75244 Project: Gateway Business Center Coppell, Texas Services: Perform In -Place Density Testing Test No Test Location Fill 7 Building pad 2, southwest corner, 125' north, 35' east, 9th lift Fill 8 Building pad 2, southwest corner, 125' north, 70' east, 9th lift Fill 9 Building pad 2, southwest corner, 125' north, 110' east, 9th lift Fill 10 Building pad 2, southwest corner, 175' north, 35' east, 9th lift Fill 11 Building pad 2, southwest corner, 175' north, 70' east, 9th lift Fill 12 Building pad 2, southwest corner, 175' north, 110' east, 9th lift LIMITATIONS: The test results presented herein were prepared based upon (composition, appearance, etc.) or any other feature of similar subject matter for the exclusive use of the clients to whom they are addressed and shall not (TM /KG) FIELD DENSITY TESTS Probe Depth M/D No. 8908 Ambassador Row, Dallas, TX 75247 7701 W Little York, Ste 600, Houston, TX 77040 4421 Friedrich, Ste 195, Austin, TX 78744 Corporate Phone: (214) 630 -9745 In -Place Density Testing Report No.: 280459 Project No.: 0712786 Date of Service: 03/02/2007 Report Date: 04/05/2007 Moisture Wet Density Dry Density Density (pcf) (pcf) max) 6" 277810 32.2 116.1 87.8 94 6" 277810 31.7 116.7 88.6 95 6" 277810 31.5 116.9 88.9 95 6" 277810 31.5 116.9 88.9 95 6" 277810 32.1 117.3 88.8 95 6" 277810 33.0 116.4 87.5 94 the specific samples provided for testing. We assume no responsibility for variation in quality provided by persons or conditions over which we have no control. Our letters and reports are be reproduced except in full without the written approval of Rone Engineering Services, Ltd. Page 2 of 3 Rone Engineering Client: Transwestern Commercial Services 5001 Spring Valley Dallas, TX 75244 Project: Gateway Business Center Coppell, Texas Services: Perform In Place Density Testing Contractor: Constructors Associates Test Method: ASTM D -2922 ASTM D -3017 MID No. 278271 Brown Clayey Sand Test No 1 Test Location Description Select fill Building pad 2, northwest corner, 25' south, 35' east, final Select fill 2 Building pad 2, east, final Select fill 3 Building pad 2, 110' east, final Select fill 4 Building pad 2, east, final Select fill 5 Building pad 2, east, final Select fill 6 Building pad 2, 110' east, final northwest corner, 25' south, 70' northwest corner, 25' south, northwest corner, 75' south, 35' northwest comer, 75' south, 70' northwest corner, 75' south, PROJECT DATA Gauge: Troxler 3430 Gauge Serial No: 35518 Test Mode: DT MOISTURE DENSITY RELATIONS Moisture 11.0 Maximum Density (pcf) 118.0 8908 Ambassador Row, Dallas, TX 75247 7701 W Little York, Ste 600, Houston, TX 77040 4421 Friedrich, Ste 195, Austin, TX 78744 Corporate Phone: (214) 630 -9745 In -Place Density Testing Report No.: 280864 Project No.: 0712786 Date of Service: 03/07/2007 Report Date: 04/05/2007 Standard Counts Moisture Density Current: 741 Current: 2637 Previous: 740 Previous: 2638 Project Requirements Moisture Density -2/ +2 95 min FIELD DENSITY TESTS Probe MID Moisture Wet Density Dry Density Density Depth No. (pcf) (pcf) max) 6" 278271 11.6 128.2 114.9 97 6" 278271 11.6 129.3 115.9 98 6" 278271 10.8 128.9 116.3 99 6" 273271 12.2 129.5 115.4 98 6" 278271 10.7 129.9 117.3 99 6" 278271 11.6 129.7 116.2 99 LIMITATIONS: The test results presented herein were prepared based upon the specific samples provided for testing. We assume no responsibility for variation in quality (composition, appearance, etc.) or any other feature of similar subject matter provided by persons or conditions over which we have no control. Our letters and reports are for the exclusive use of the clients to whom they are addressed and shall not be reproduced except in full without the written approval of Rone Engineering Services, Ltd. (TM/KG) Page 1 of 3 Rone Engineering Client: Transwestern Commercial Services 5001 Spring Valley Dallas, TX 75244 Project: Gateway Business Center Coppell, Texas Services: Perform In -Place Density Testing Test No Select fill 7 Building pad 2, 35' east, final Select fill 8 Building pad 2, 70' east, final Select fill 9 Building pad 2, 110' east, final Select fill 10 Building pad 2, 35' east, final Select fill 11 Building pad 2, 70' east, final Select fill 12 Building pad 2, 110' east, final Test Location northwest corner, 125' south, northwest corner, 125' south, northwest corner, 125' south, northwest comer, 175' south, northwest corner, 175' south, northwest corner, 175' south, FIELD DENSITY TESTS Probe Depth MID No. 8908 Ambassador Row, Dallas, TX 75247 7701 W Little York, Ste 600, Houston, TX 77040 4421 Friedrich, Ste 195, Austin, TX 78744 Corporate Phone: (214) 630 -9745 In -Place Density Testing Report No.: 280864 Project No.: 0712786 Date of Service: 03/07/2007 Report Date: 04/05/2007 Moisture Wet Density Dry Density Density (pcf) (pcf) max) 6" 278271 11.4 129.3 116.1 98 6" 278271 10.7 129.5 117.0 99 6" 278271 11.6 128.8 115.4 98 6" 278271 10.4 129.0 116.8 99 6" 278271 12.8 129.0 114.4 97 6" 278271 12.2 128.5 114.5 97 LIMITATIONS: The test results presented herein were prepared based upon the specific samples provided for testing. We assume no responsibility for variation in quality (composition, appearance, etc.) or any other feature of similar subject matter provided by persons or conditions over which we have no control. Our letters and reports are for the exclusive use of the clients to whom they are addressed and shall not be reproduced except in full without the written approval of Rone Engineering Services, Ltd. (TM /KG) Page 2 of 3 Rone Engineering u Client: Transwestern Commercial Services 5001 Spring Valley Dallas, TX 75244 Project: Gateway Business Center Coppell, Texas Services: Obtain samples of fresh concrete at the placement locations, perform required testing, cast compressive strength samples and bring sampler back to the laboratory for curing and testing in accordance with applicable standards. Contractor: Constructors Associates Concrete Supplier: Redi -Mix Concrete Plant: 136 Specification Requirements Strength: 3,000 psi 28 days Slump (in.): 5" 7" Air NA Test Method: ASTM C -172 ASTM C -31 (except 10.1.2) ASTM C -143 ASTM C -231 ASTM C -1064 ASTM C -138 ASTM C -39 Cylinder Marked Date Age Set No. Tested (days) 1 1 03/30/2007 7 1 2 04/20/2007 28 1 3 04/20/2007 28 1 4 HOLD Diameter (in) 6.00 PROJECT DATA Mix Design I.D.: 1521 Placement Date: 03/23/2007 Weather Conditions: Cloudy Time Sampled: 03:12pm Temperature Air: 79 °F Truck No: 1038 Air Content: NA Overall Placement Location: Piers, see report #282670 Sample Location: Pier A.1/17.9 REPORT OF TESTS Concrete Compressive Cylinder 6" x 12" Maximum Load (Ibs) Area (in 28.27 Concrete Compressive Strength Tesi 102,100 8908 Ambassador Row, Dallas, TX 75247 7701 W Little York, Ste 600, Houston, TX 77040 4421 Friedrich, Ste 195, Austin, TX 78744 Corporate Phone: (214) 630 -9745 Report No.: 282671 Project No.: 0712786 Date of Service: 03/23/2007 Report Date: 04/05/2007 Batch time: 02:35pm Concrete: 74 °F Ticket No: 13683352 Unit Weight (pcf): NA Compressive Strength (psi) 3,610 Measured Slump (inches) 6.0 Fracture Type LIMITATIONS: The test results presented herein were prepared based upon the specific samples provided for testing. We assume no responsibility for variation in quality (composition, appearance, etc.) or any other feature of similar subject matter provided by persons or conditions over which we have no control. Our letters and reports are for the exclusive use of the clients to whom they are addressed and shall not be reproduced except in full without the written approval of Rone Engineering Services, Ltd. (TM /KG) Page 1 of 2 Rone Engineering u Client: Transwestern Commercial Services 5001 Spring Valley Dallas, TX 75244 Project: Gateway Business Center Coppell, Texas Services: Perform In -Place Density Testing Contractor: Constructors Associates Test Method: ASTM D -2922 ASTM D -3017 M/D No. 277810 Tannish Brown Silty Clay Test No Fill 1 Building pad 2, east, 10th lift Fill 2 Building pad 2, east, 10th lift Fill 3 Building pad 2, 110' east, 10th Fill 4 Building pad 2, east, 10th lift Fill 5 Building pad 2, east, 10th lift Fill 6 Building pad 2, 110' east, 10th Test Location Description northwest corner, 25' south, 35' northwest corner, 25' south, 70' northwest corner, 25' south, lift northwest corner, 75' south, 35' northwest corner, 75' south, 70' northwest corner, 75' south, lift PROJECT DATA Gauge: Troxler 3430 Gauge Serial No: 35518 Test Mode: DT MOISTURE DENSITY RELATIONS Moisture "/0 24.5 Mois Current: Previous: Maximum Density (pcf) 93.5 8908 Ambassador Row, Dallas, TX 75247 7701 W Little York, Ste 600, Houston, TX 77040 4421 Friedrich, Ste 195, Austin, TX 78744 Corporate Phone: (214) 630 -9745 In -Place Density Testing Report No.: 280573 Project No.: 0712786 Date of Service: 03/05/2007 Report Date: 04/05/2007 ture 740 741 Standard Counts Density Current: 2648 Previous: 2652 Project Requirements Moisture Density Minimum +4 92 -96 FIELD DENSITY TESTS Probe M/D Moisture Wet Density Dry Density Density Depth No. (pcf) (pcf) max) 6" 277810 32.1 117.3 88.8 95 6" 277810 31.5 116.9 88.9 95 6" 277810 31.7 116.7 88.6 95 6" 277810 32.2 116.1 87.8 94 6" 277810 34.4 116.8 86.9 93 6" 277810 33.2 116.7 87.6 94 LIMITATIONS: The test results presented herein were prepared based upon the specific samples provided for testing. We assume no responsibility for variation in quality (composition, appearance, etc.) or any other feature of similar subject matter provided by persons or conditions over which we have no control. Our letters and reports are for the exclusive use of the clients to whom they are addressed and shall not be reproduced except in full without the written approval of Rone Engineering Services, Ltd. (KW /KG) Page 1 of 3 Rone Engineering Client: Transwestern Commercial Services 5001 Spring Valley Dallas, TX 75244 Project: Gateway Business Center Coppell, Texas Services: Perform In -Place Density Testing Test No Test Location FIELD DENSITY TESTS Probe M/D Depth No. Fill 7 Building pad 2, northwest corner, 125' south, 6" 277810 35' east, 10th lift Fill 8 Building pad 2, northwest corner, 125' south, 70' east, 10th lift Fill 9 Building pad 2, northwest corner, 125' south, 110' east, 10th lift Fill 10 Building pad 2, northwest corner, 175' south, 35' east, 10th lift Fill 11 Building pad 2, northwest corner, 175' south, 70' east, 10th lift Fill 12 Building pad 2, northwest comer, 175' south, 110' east, 10th lift 8908 Ambassador Row, Dallas, TX 75247 7701 W Little York, Ste 600, Houston, TX 77040 4421 Friedrich, Ste 195, Austin, TX 78744 Corporate Phone: (214) 630 -9745 In -Place Density Testing Report No.: 280573 Project No.: 0712786 Date of Service: 03/05/2007 Report Date: 04/05/2007 Moisture Wet Density Dry Density Density (pcf) (pcf) max) 33.7 116.7 87.3 93 6" 277810 32.4 116.8 88.2 94 6" 277810 31.3 116.1 88.4 95 6" 277810 31.6 116.6 88.6 95 6" 277810 33.0 116.4 87.5 94 6" 277810 31.4 116.4 88.6 95 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 Rorie Engineering Services, Ltd. (KW /KG) Page 2 of 3 Rone Engineering 1 Client: Project: Gateway Business Center Coppell, Texas Services: Perform In -Place Density Testing Contractor: Constructors Associates Test Method: ASTM D -2922 ASTM D -3017 M/D No. 277810 Tannish Brown Silty Clay Test No Transwestern Commercial Services 5001 Spring Valley Dallas, TX 75244 Test Location Description Fill 1 Building pad 2, southwest comer, 25' north, 35' east, 10th lift Fill 2 Building pad 2, southwest corner, 25' north, 70' east, 10th lift Fill 3 Building pad 2, southwest corner, 25' north, 110' east, 10th lift Fill 4 Building pad 2, southwest corner, 75' north, 35' east, 10th lift Fill 5 Building pad 2, southwest corner, 75' north, 70' east, 10th lift Fill 6 Building pad 2, southwest corner, 75' north,6 110' east, 10th lift PROJECT DATA Gauge: Troxler 3430 Gauge Serial No: 35518 Test Mode: DT MOISTURE DENSITY RELATIONS Moisture 24.5 FIELD DENSITY TESTS Maximum Density (pcf) 93.5 8908 Ambassador Row, Dallas, TX 75247 7701 W Little York, Ste 600, Houston, TX 77040 4421 Friedrich, Ste 195, Austin, TX 78744 Corporate Phone: (214) 630 -9745 In -Place Density Testing Report No.: 280612 Project No.: 0712786 Date of Service: 03/05/2007 Report Date: 04/05/2007 Standard Counts Moisture Density Current: 740 Current: 2648 Previous: 741 Previous: 2652 Project Requirements Moisture Density Minimum +4 92 -96 Probe M/D Moisture Wet Density Dry Density Density Depth No. (pcf) (pcf) max) 6" 277810 30.8 116.9 89.4 96 6" 277810 32.7 116.8 88.0 94 6" 277810 32.3 116.6 88.1 94 6" 277810 32.4 116.5 88.0 94 6" 277810 33.7 116.2 86.9 93 6" 277810 32.5 116.5 87.9 94 LIMITATIONS: The test results presented herein were prepared based upon the specific samples provided for testing. We assume no responsibility for variation in quality (composition, appearance, etc.) or any other feature of similar subject matter provided by persons or conditions over which we have no control. Our letters and reports are for the exclusive use of the clients to whom they are addressed and shall not be reproduced except in full without the written approval of Rone Engineering Services, Ltd. (TM/KG) Page 1 of 3 Rone Engineering Client: Transwestern Commercial Services 5001 Spring Valley Dallas, TX 75244 Project: Gateway Business Center Coppell, Texas Services: Perform In Place Density Testing Test No Test Location Fill 7 Building pad 2, southwest corner, 125' north, 35, east, 10th lift Fill 8 Building pad 2, southwest corner, 125' north, 70' east, 10th lift Fill 9 Building pad 2, southwest comer, 125' north, 110' east, 10th lift Fill 10 Building pad 2, southwest corner, 125' north, 35' east, 10th lift Fill 11 Building pad 2, southwest corner, 125' north, 70' east, 10th lift Fill 12 Building pad 2, southwest corner, 125' north, 110' east, 10th lift FIELD DENSITY TESTS Probe M/D Depth No. 8908 Ambassador Row, Dallas, TX 75247 7701 W Little York, Ste 600, Houston, TX 77040 4421 Friedrich, Ste 195, Austin, TX 78744 Corporate Phone: (214) 630 -9745 In -Place Density Testing Report No.: 280612 Project No.: 0712786 Date of Service: 03/05/2007 Report Date: 04/05/2007 Moisture Wet Density Dry Density Density (pcf) (pcf) max) 6" 277810 30.4 112.0 85.9 92 6" 277810 30.2 111.7 85.8 92 6" 277810 30.4 111.9 85.8 92 6" 277810 30.2 112.2 86.2 92 6" 277810 30.4 112.0 85.9 92 6" 277810 33.0 116.4 87.5 94 LIMITATIONS: The test results presented herein were prepared based upon the specific samples provided for testing. We assume no responsibility for variation in quality (composition, appearance, etc.) or any other feature of similar subject matter provided by persons or conditions over which we have no control. Our letters and reports are for the exclusive use of the clients to whom they are addressed and shall not be reproduced except in full without the written approval of Rone Engineering Services, Ltd. (TM/KG) Page 2 of 3 Rone Engineering 1 Client: Project: Gateway Business Center Coppell, Texas Services: Perform In Place Density Testing Contractor: Constructors Associates Test Method: ASTM D -2922 ASTM D -3017 M/D No. 278271 Brown Clayey Sand Test No Transwestern Commercial Services 5001 Spring Valley Dallas, TX 75244 Test Location Description Select fill 1 Building pad 2, northwest corner, east, 1st lift Select fill 2 Building pad 2, northwest corner, east, 1st lift Select fill 3 Building pad 2, northwest corner, 110' east, 1st lift Select fill 4 Building pad 2, northwest corner, east, 1st lift Select fill 5 Building pad 2, northwest corner, east, 1st lift Select fill 6 Building pad 2, northwest corner, 75' 110' east, 1st lift PROJECT DATA Gauge: Troxler 3430 Gauge Serial No: 35518 Test Mode: DT MOISTURE DENSITY RELATIONS Moisture 11.0 8908 Ambassador Row, Dallas, TX 75247 7701 W Little York, Ste 600, Houston, TX 77040 4421 Friedrich, Ste 195, Austin, TX 78744 Corporate Phone: (214) 630 -9745 Standard Counts Moisture Density Current: 740 Current: 2638 Previous: 740 Previous: 2640 In -Place Density Testing Report No.: 280748 Project No.: 0712786 Date of Service: 03/06/2007 Report Date: 04/05/2007 Maximum Density (pcf) 118.0 Project Requirements Moisture Density -2/ +2 95 min FIELD DENSITY TESTS Probe MID Moisture Wet Density Dry Density Density Depth No. 25' south, 35' 6" 278271 25' south, 70' 6" 278271 25' south, 6" 278271 75' south, 35' 6" 278271 75' south, 70' 6" 278271 south, 6" 278271 (pcf) (pcf) max) 11.2 128.8 115.8 98 12.7 128.4 113.9 97 11.4 128.4 115.3 98 10.9 129.2 116.5 99 11.9 128.4 114.7 97 11.8 129.2 115.6 98 LIMITATIONS: The test results presented herein were prepared based upon the specific samples provided for testing. We assume no responsibility for variation in quality (composition, appearance, etc.) or any other feature of similar subject matter provided by persons or conditions over which we have no control. Our letters and reports are for the exclusive use of the clients to whom they are addressed and shall not be reproduced except in full without the written approval of Rone Engineering Services, Ltd. (TM /KG) Page 1 of 4 Rone Engineering MEM Ili ad= Client: Transwestern Commercial Services 5001 Spring Valley Dallas, TX 75244 Project: Gateway Business Center Coppell, Texas Services: Perform In -Place Density Testing Test No Test Location FIELD DENSITY TESTS Probe Depth M/D No. Select fill 7 Building pad 2, northwest corner, 125' south, 6" 278271 35' east, 1st lift Select fill 8 Building pad 2, northwest corner, 125' south, 6" 278271 70' east, 1st lift Select fill 9 Building pad 2, northwest corner, 125' south, 6" 278271 110' east, 1st lift Select fill 10 Building pad 2, northwest corner, 175' south, 6" 278271 35' east, 1st lift Select fill 11 Building pad 2, northwest corner, 175' south, 6" 278271 70' east, 1st lift Select fill 12 Building pad 2, northwest corner, 175' south, 6" 278271 110' east, 1st lift Select fill 13 Building pad 2, southwest corner, 25' north, 35' 6" 278271 east, 1st lift Select fill 14 Building pad 2, southwest corner, 25' north, 70' 6" 278271 east, 1st lift Select fill 15 Building pad 2, southwest corner, 25' north, 6" 278271 110' east, 1st lift Select fill 16 Building pad 2, southwest corner, 75' north, 35' 6" 278271 east, 1st lift 8908 Ambassador Row, Dallas, TX 75247 7701 W Little York, Ste 600, Houston, TX 77040 4421 Friedrich, Ste 195, Austin, TX 78744 Corporate Phone: (214) 630 -9745 In -Place Density Testing Report No.: 280748 Project No.: 0712786 Date of Service: 03/06/2007 Report Date: 04 /05/2007 Moisture Wet Density Dry Density Density (Pcf) (pcf) max) 11.5 129.6 116.2 99 11.4 128.6 115.4 98 11.5 128.6 115.3 98 11.8 128.7 115.1 98 10.9 129.3 116.6 99 11.8 128.4 114.8 97 10.4 129.0 116.8 99 12.8 129.0 114.4 97 12.2 128.5 114.5 97 11.6 128.8 115.4 98 LIMITATIONS: The test results presented herein were prepared based upon the specific samples provided for testing. We assume no responsibility for variation in quality (composition, appearance, etc.) or any other feature of similar subject matter provided by persons or conditions over which we have no control. Our letters and reports are for the exclusive use of the clients to whom they are addressed and shall not be reproduced except in full without the written approval of Rone Engineering Services, Ltd. (TM /KG) Page 2 of 4 Rone Engineering Client: Transwestern Commercial Services 5001 Spring Valley Dallas, TX 75244 Project: Gateway Business Center Coppell, Texas Services: Perform In -Place Density Testing Test No Test Location Select fill 17 Building pad 2, southwest corner, 75' north, 70' east, 1st lift Select fill 18 Building pad 2, southwest corner, 75' north, 110' east, 1st lift Select fill 19 Building pad 2, southwest corner, 125' north, 35' east, 1st lift Select fill 20 Building pad 2, southwest corner, 125' north, 70' east, 1st lift Select fill 21 Building pad 2, southwest corner, 125' north, 110' east, 1st lift Select fill 22 Building pad 2, southwest corner, 175' north, 35' east, 1st lift Select fill 23 Building pad 2, southwest corner, 175' north, 70' east, 1st lift Select fill 24 Building pad 2, southwest corner, 175' north, 110' east, 1st lift FIELD DENSITY TESTS Probe M/D Depth No. 8908 Ambassador Row, Dallas, TX 75247 7701 W Little York, Ste 600, Houston, TX 77040 4421 Friedrich, Ste 195, Austin, TX 78744 Corporate Phone: (214) 630 -9745 In -Place Density Testing Report No.: 280748 Project No.: 0712786 Date of Service: 03/06/2007 Report Date: 04/05/2007 Moisture Wet Density Dry Density Density (pcf) (pcf) max) 6" 278271 10.7 129.5 117.0 99 6" 278271 11.4 129.3 116.1 98 6" 278271 11.6 129.7 116.2 99 6" 278271 10.7 129.9 117.3 99 6" 278271 12.2 129.5 115.4 98 6" 278271 10.8 128.9 116.3 99 6" 278271 11.6 129.3 115.9 98 6" 278271 11.6 128.2 114.9 97 LIMITATIONS: The test results presented herein were prepared based upon the specific samples provided for testing. We assume no responsibility for variation in quality (composition, appearance, etc.) or any other feature of similar subject matter provided by persons or conditions over which we have no control. Our letters and reports are for the exclusive use of the clients to whom they are addressed and shall not be reproduced except in full without the written approval of Rone Engineering Services, Ltd. (TM /KG) Page 3 of 4 Rone Engineering Client: Project: Gateway Business Center Coppell, Texas Services: Perform In Place Density Testing Contractor: Constructors Associates Test Method: ASTM D -2922 ASTM D -3017 M/D No. 277809 Dark Brown Clay Test No Transwestem Commercial Services 5001 Spring Valley Dallas, TX 75244 Test Location Utility backfill 1 6" sanitary sewer line C, Station grade Utility backfill 2 6" sanitary sewer line C, Station grade Utility backfill 3 6" sanitary sewer line C, Station grade Utility backfill 4 6" sanitary sewer line C, Station grade Utility backfill 5 6" sanitary sewer line C, Station grade Description Gauge: Troxler 3430 Gauge Serial No: 35518 Test Mode: DT MOISTURE DENSITY RELATIONS 0 +50, 5' below 0 +50, 4' below 0 +50, 3' below 2 +00, 5' below 2 +00, 4' below PROJECT DATA FIELD DENSITY TESTS Probe M/D Moisture Wet Density Dry Density Density Depth No. Moisture 27.0 Report No.: 282533 Project No.: 0712786 Date of Service: 03/22/2007 Report Date: 04/05/2007 Maximum Density (pcf) 89.0 6" 277809 29.8 112.0 6" 277809 29.1 111.8 6" 277809 29.1 111.5 6" 277809 30.5 112.2 6" 277809 30.1 113.1 8908 Ambassador Row, Dallas, TX 75247 7701 W Little York, Ste 600, Houston, TX 77040 4421 Friedrich, Ste 195, Austin, TX 78744 Corporate Phone: (214) 630 -9745 In -Place Density Testing Standard Counts Moisture Density Current: 741 Current: 2642 Previous: 739 Previous: 2640 Project Requirements Moisture Density Optimum +4 95 min (pcf) (pcf) max) 86.3 97 86.6 97 86.4 97 86.0 97 86.9 98 LIMITATIONS: The test results presented herein were prepared based upon the specific samples provided for testing. We assume no responsibility for variation in quality (composition, appearance, etc.) or any other feature of similar subject matter provided by persons or conditions over which we have no control. Our letters and reports are for the exclusive use of the clients to whom they are addressed and shall not be reproduced except in full without the written approval of Rone Engineering Services, Ltd. (TM /KG) Page 1 of 3 Rone Engineering Client: Transwestern Commercial Services 5001 Spring Valley Dallas, TX 75244 Project: Gateway Business Center Coppell, Texas Services: Perform In -Place Density Testing FIELD DENSITY TESTS 8908 Ambassador Row, Dallas, TX 75247 7701 W Little York, Ste 600, Houston, TX 77040 4421 Friedrich, Ste 195, Austin, TX 78744 Corporate Phone: (214) 630 -9745 In -Place Density Testing Report No.: 282533 Project No.: 0712786 Date of Service: 03/22/2007 Report Date: 04/05/2007 Test Probe MID Moisture Wet Density Dry Density Density No Test Location Depth No. (pcf) (pcf) max) Utility backfill 6 6" sanitary sewer line C, Station 2 +00, 3' below 6" 277809 29.5 112.5 86.9 98 grade LIMITATIONS: The test results presented herein were prepared based upon the specific samples provided for testing. We assume no responsibility for variation in quality (composition, appearance, etc.) or any other feature of similar subject matter provided by persons or conditions over which we have no control. Our letters and reports are for the exclusive use of the clients to whom they are addressed and shall not be reproduced except in full without the written approval of Rone Engineering Services, Ltd. (TM/KG) Page 2 of 3 Rone Engineering 1.11111111111111i011111111111111 Client: Transwestern Commercial Services 5001 Spring Valley Dallas, TX 75244 Project: Gateway Business Center Coppell, Texas Services: Obtain samples of fresh concrete at the placement locations, perform required testing, cast compressive strength samples and bring sampleE back to the laboratory for curing and testing in accordance with applicable standards. Contractor: Constructors Associates Concrete Supplier: Redi -Mix Concrete Plant: 136 Specification Requirements Strength: 3,000 psi 28 days Slump (in.): 5" 7" Air NA Test Method: ASTM C -172 ASTM C -31 (except 10.1.2) ASTM C -143 ASTM C -231 ASTM C -1064 ASTM C -138 ASTM C -39 Cylinder Marked Date Age Set No. Tested (days) 1 1 03/29/2007 7 1 2 04/19/2007 28 1 3 04/19/2007 28 PROJECT DATA Mix Design I.D.: 1521 Placement Date: 03/22/2007 Weather Conditions: Cloudy Time Sampled: 10:30am Temperature Air: 77 °F Truck No: 1344 Air Content: NA Overall Placement Location: Piers, see report #282514 Sample Location: Pier E/8.6 REPORT OF TESTS Concrete Compressive Cylinder 6" x 12" Maximum Area Load (in (Ibs) Diameter (in) 6.00 28.27 98,640 8908 Ambassador Row, Dallas, TX 75247 7701 W Little York, Ste 600, Houston, TX 77040 4421 Friedrich, Ste 195, Austin, TX 78744 Corporate Phone: (214) 630 -9745 Concrete Compressive Strength Tesi Report No.: 282515 Project No.: 0712786 Date of Service: 03/22/2007 Report Date: 04/05/2007 Batch time: 09:10am Concrete: 72 °F Ticket No: 13683077 Unit Weight (pcf): NA Compressive Strength (psi) 3,490 Measured Slump (inches) 5.0 Fracture Type LIMITATIONS: The test results presented herein were prepared based upon the specific samples provided for testing. We assume no responsibility for variation in quality (composition, appearance, etc.) or any other feature of similar subject matter provided by persons or conditions over which we have no control. Our letters and reports are for the exclusive use of the clients to whom they are addressed and shall not be reproduced except in full without the written approval of Rone Engineering Services, Ltd. (TM /KG) Page 1 of 5 Rone Engineering Client: Transwestem Commercial Services 5001 Spring Valley Dallas, TX 75244 1 4 HOLD 8908 Ambassador Row, Dallas, TX 75247 7701 W Little York, Ste 600, Houston, TX 77040 4421 Friedrich, Ste 195, Austin, TX 78744 Corporate Phone: (214) 630 -9745 Concrete Compressive Strength Tesi Report No.: 282515 Project No.: 0712786 Date of Service: 03/22/2007 Report Date: 04/05/2007 Project: Gateway Business Center Coppell, Texas Services: Obtain samples of fresh concrete at the placement locations, perform required testing, cast compressive strength samples and bring sample: back to the laboratory for curing and testing in accordance with applicable standards. REPORT OF TESTS Concrete Compressive Cylinder x 12" Cylinder Maximum Compressive Marked Date Age Diameter Area Load Strength Fracture Set No. Tested (days) (in) (in') (Ibs) (psi) Type LIMITATIONS: The test results presented herein were prepared based upon the specific samples provided for testing. We assume no responsibility for variation in quality (composition, appearance, etc.) or any other feature of similar subject matter provided by persons or conditions over which we have no control. Our letters and reports are for the exclusive use of the clients to whom they are addressed and shall not be reproduced except in full without the written approval of Rone Engineering Services, Ltd. (TM /KG) Page 2 of 5 Rone Engineering Client: Transwestern Commercial Services 5001 Spring Valley Dallas, TX 75244 Project: Gateway Business Center Coppell, Texas Services: Obtain samples of fresh concrete at the placement locations, perform required testing, cast compressive strength samples and bring sample: back to the laboratory for curing and testing in accordance with applicable standards. Contractor: Constructors Associates Concrete Supplier: Redi -Mix Concrete Plant: 136 Specification Requirements Strength: Slump (in.): Air Test Method: 3,000 psi 28 days 5" 7" NA 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 Age Set No. Tested (days) 2 1 03/29/2007 7 2 2 04/19/2007 28 2 3 04/19/2007 28 Diameter (in) 6.00 PROJECT DATA Mix Design I.D.: 1521 Placement Date: 03/22/2007 Weather Conditions: Cloudy Time Sampled: 04:05pm Temperature Air: 72 °F Truck No: 0 Air Content: NA Overall Placement Location: Piers, see report #282514 Sample Location: Pier B/2 REPORT OF TESTS Concrete Compressive Cylinder 6" x 12" Maximum Load (Ibs) Area (in 28.27 103,750 8908 Ambassador Row, Dallas, TX 75247 7701 W Little York, Ste 600, Houston, TX 77040 4421 Friedrich, Ste 195, Austin, TX 78744 Corporate Phone: (214) 630 -9745 Concrete Compressive Strength Test Report No.: 282515 Project No.: 0712786 Date of Service: 03/22/2007 Report Date: 04/05/2007 Batch time: 03:30pm Concrete: 74 °F Ticket No: 13683039 Unit Weight (pcf): NA Compressive Strength (psi) 3,670 Measured Slump (inches) 5.0 Fracture Type LIMITATIONS: The test results presented herein were prepared based upon the specific samples provided for testing. We assume no responsibility for variation in quality (composition, appearance, etc.) or any other feature of similar subject matter provided by persons or conditions over which we have no control. Our letters and reports are for the exclusive use of the clients to whom they are addressed and shall not be reproduced except in full without the written approval of Rone Engineering Services, Ltd. (TM /KG) Page 3 of 5 Rone Engineering Client: Transwestern Commercial Services 5001 Spring Valley Dallas, TX 75244 2 4 HOLD 8908 Ambassador Row, Dallas, TX 75247 7701 W Little York, Ste 600, Houston, TX 77040 4421 Friedrich, Ste 195, Austin, TX 78744 Corporate Phone: (214) 630 -9745 Concrete Compressive Strength Tesi Report No.: 282515 Project No.: 0712786 Date of Service: 03/22/2007 Report Date: 04/05/2007 Project: Gateway Business Center Coppell, Texas Services: Obtain samples of fresh concrete at the placement locations, perform required testing, cast compressive strength samples and bring sample: back to the laboratory for curing and testing in accordance with applicable standards. REPORT OF TESTS Concrete Compressive Cylinder x 12" Cylinder Maximum Compressive Marked Date Age Diameter Area Load Strength Fracture Set No. Tested (days) (in) (in') (Ibs) (psi) Type LIMITATIONS: The test results presented herein were prepared based upon the specific samples provided for testing. We assume no responsibility for variation in quality (composition, appearance, etc.) or any other feature of similar subject matter provided by persons or conditions over which we have no control. Our letters and reports are for the exclusive use of the clients to whom they are addressed and shall not be reproduced except in full without the written approval of Rorie Engineering Services, Ltd. (TM /KG) Page 4 of 5 Rone Engineering Client: Transwestern Commercial Services 5001 Spring Valley Dallas, TX 75244 Project: Gateway Business Center Coppeli, Texas Services: Obtain samples of fresh concrete at the placement locations, perform required testing, cast compressive strength samples and bring sample; back to the laboratory for curing and testing in accordance with applicable standards. Contractor: Constructors Associates Concrete Supplier: Redi -Mix Concrete Plant: 136 Specification Requirements Strength: 3,000 psi 28 days Slump (in.): 5" 7" Air NA Test Method: ASTM C -172 ASTM C -31 (except 10.1.2) ASTM C -143 ASTM C -231 ASTM C -1064 ASTM C -138 ASTM C -39 Cylinder Marked Date Age Set No. Tested (days) 1 1 03/23/2007 7 1 2 04/13/2007 28 6.00 1 3 04/13/2007 28 6.00 1 4 HOLD PROJECT DATA Mix Design I.D.: Placement Date: Weather Conditions: Time Sampled: Temperature Air: Truck No: Air Content: 1521 03/16/2007 Sunny 09:15am 54 °F 1190 NA Overall Placement Location: Piers B/16, B/15, B/14, B/13, B/11, C/16, C /15, C/14, C /13, C/11, D/11, D /10, E/9.3, C/1 B/10, B/9.3, B/8.7 Sample Location: Pier B/16 REPORT OF TESTS Concrete Compressive Cylinder 6" x 12" Maximum Load (Ibs) 97,200 Diameter (in) 6.00 Area (in 28.27 28.27 28.27 Concrete Compressive Strength Test 144,150 142,320 Average 8908 Ambassador Row, Dallas, TX 75247 7701 W Little York, Ste 600, Houston, TX 77040 4421 Friedrich, Ste 195, Austin, TX 78744 Corporate Phone: (214) 630 -9745 Report No.: 281844 Project No.: 0712786 Date of Service: 03/16/2007 Report Date: 04/05/2007 Batch time: 08:44am Concrete: 68 °F Ticket No: 13682537 Unit Weight (pcf): NA Compressive Strength (psi) 3,440 5,100 5,030 5,070 Measured Slump (inches) 6.0 Fracture Type Unbonded Cap 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. (TM /KG) Page 1 of 2 Rone Engineering 111 .1111., Client: M/D No. Test No Transwestern Commercial Services 5001 Spring Valley Dallas, TX 75244 Project: Gateway Business Center Coppell, Texas Services: Perform In Place Density Testing Contractor: Constructors Associates Test Method: ASTM D -2922 ASTM D -3017 278271 Brown Clayey Sand Select fill 1 Building pad 2, east, final Select fill 2 Building pad 2, east, final Select fill 3 Building pad 2, 110' east, final Select fill 4 Building pad 2, east, final Select fill 5 Building pad 2, east, final Select fill 6 Building pad 2, 110' east, final Test Location Description PROJECT DATA Gauge: Troxler 3430 Gauge Serial No: 35518 Test Mode: DT MOISTURE DENSITY RELATIONS Moisture 11.0 FIELD DENSITY TESTS Probe Depth MID No. southwest corner, 25' north, 35' 6" 278271 southwest corner, 25' north, 70' 6" 278271 southwest corner, 25' north, 6" 278271 southwest corner, 75' north, 35 6" 278271 southwest corner, 75' north, 70' 6" 278271 southwest corner, 75' north, 6" 278271 8908 Ambassador Row, Dallas, TX 75247 7701 W Little York, Ste 600, Houston, TX 77040 4421 Friedrich, Ste 195, Austin, TX 78744 Corporate Phone: (214) 630 -9745 In -Place Density Testing Report No.: 280894 Project No.: 0712786 Date of Service: 03/07/2007 Report Date: 04/05/2007 Standard Counts Moisture Density Current: 741 Current: 2637 Previous: 740 Previous: 2638 Maximum Density Project Requirements (pcf) Moisture 118.0 -2/ +2 Moisture Wet Density Dry Density (pcf) (pcf) 11.5 128.6 115.3 Density 95 min Density max) 98 11.8 128.7 115.1 98 10.9 129.3 116.6 99 11.8 128.4 114.8 97 11.2 128.8 115.8 98 12.7 128.4 113.9 97 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 /KG) Page 1 of 3 Rone Engineering Client: Transwestern Commercial Services 5001 Spring Valley Dallas, TX 75244 Project: Gateway Business Center Coppell, Texas Services: Perform In -Place Density Testing Test No Select fill 7 Building pad 2, 35' east, final Select fill 8 Building pad 2, 70' east, final Select fill 9 Building pad 2, 110' east, final Select fill 10 Building pad 2, 35' east, final Select fill 11 Building pad 2, 70' east, final Select fill 12 Building pad 2, 110' east, final Test Location southwest corner, 125' north, southwest corner, 125' north, southwest corner, 125' north, southwest comer, 175' north, southwest corner, 175' north, southwest corner, 175' north, FIELD DENSITY TESTS Probe MID Depth No. 8908 Ambassador Row, Dallas, TX 75247 7701 W Little York, Ste 600, Houston, TX 77040 4421 Friedrich, Ste 195, Austin, TX 78744 Corporate Phone: (214) 630 -9745 In -Place Density Testing Report No.: 280894 Project No.: 0712786 Date of Service: 03/07/2007 Report Date: 04/05/2007 Moisture Wet Density Dry Density Density (pcf) (pcf) max) 6" 278271 11.4 128.4 115.3 98 6" 278271 10.9 129.2 116.5 99 6" 278271 11.9 128.4 114.7 97 6" 278271 11.8 129.2 115.6 98 6" 278271 11.5 129.6 116.2 99 6" 278271 11.4 128.6 115.4 98 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 /KG) Page 2 of 3 Rone Engineering u Client: Project: Gateway Business Center Coppell, Texas Services: Perform In Place Density Testing Contractor: Constructors Associates Test Method: ASTM D -2922 ASTM D -3017 M/D No. 277809 Dark Brown Clay Test No Transwestern Commercial Services 5001 Spring Valley Dallas, TX 75244 Test Location Description Fill 1 Building pad 2, northwest corner, 25' south, 35' east, 8th lift Fill 2 Building pad 2, northwest comer, 25' south, 70' east, 8th lift Fill 3 Building pad 2, northwest corner, 25' south, 110' east, 8th lift Fill 4 Building pad 2, northwest corner, 75' south, 35' east, 8th lift Fill 5 Building pad 2, northwest corner, 75' south, 70' east, 8th lift Fill 6 Building pad 2, northwest corner, 75' south, 110' east, 8th lift PROJECT DATA Gauge: Troxler 3430 Gauge Serial No: 35518 Test Mode: DT MOISTURE DENSITY RELATIONS Moisture 27.0 FIELD DENSITY TESTS 8908 Ambassador Row, Dallas, TX 75247 7701 W Little York, Ste 600, Houston, TX 77040 4421 Friedrich, Ste 195, Austin, TX 78744 Corporate Phone: (214) 630 -9745 In -Place Density Testing Report No.: 280242 Project No.: 0712786 Date of Service: 03/01/2007 Report Date: 04/05/2007 Standard Counts Moisture Density Current: 744 Current: 2652 Previous: 745 Previous: 2657 Maximum Density (pcf) 89.0 Project Requirements Moisture Density Minimum +4 92 -96 Probe MID Moisture Wet Density Dry Density Density Depth No. (pcf) (pcf) max) 6" 277809 32.2 111.8 84.6 95 6" 277809 32.2 110.9 83.9 94 6" 277809 32.7 111.5 84.0 94 6" 277809 33.2 111.2 83.5 94 6" 277809 31.7 112.1 85.1 96 6" 277809 32.2 111.7 84.5 95 LIMITATIONS: The test results presented herein were prepared based upon the specific samples provided for testing. We assume no responsibility for variation in quality (composition, appearance, etc.) or any other feature of similar subject matter provided by persons or conditions over which we have no control. Our letters and reports are for the exclusive use of the clients to whom they are addressed and shall not be reproduced except in full without the written approval of Rone Engineering Services, Ltd. (KW /KG) Page 1 of 3 Rone Engineering Client: Transwestern Commercial Services 5001 Spring Valley Dallas, TX 75244 Project: Gateway Business Center Coppell, Texas Services: Perform In -Place Density Testing Test No Test Location Fill 7 Building pad 2, northwest corner, 35' east, 8th lift Fill 8 Building pad 2, northwest corner, 70' east, 8th lift Fill 9 Building pad 2, northwest corner, 110' east, 8th lift Fill 10 Building pad 2, northwest corner, 35' east, 8th lift Fill 11 Building pad 2, northwest corner, 70' east, 8th lift Fill 12 Building pad 2, northwest corner, 110' east, 8th lift 125' south, 125' south, 125' south, 175' south, 175' south, 175' south, FIELD DENSITY TESTS Probe Depth M/D No. 8908 Ambassador Row, Dallas, TX 75247 7701 W Little York, Ste 600, Houston, TX 77040 4421 Friedrich, Ste 195, Austin, TX 78744 Corporate Phone: (214) 630 -9745 In -Place Density Testing Report No.: 280242 Project No.: 0712786 Date of Service: 03/01/2007 Report Date: 04/05/2007 Moisture Wet Density Dry Density Density (pcf) (pcf) max) 6" 277809 31.8 111.1 84.3 95 6" 277809 31.9 111.6 84.6 95 6" 277809 33.4 111.5 83.6 94 6" 277809 32.6 111.9 84.4 95 6" 277809 32.8 111.4 83.9 94 6" 277809 32.9 111.0 83.5 94 LIMITATIONS: The test results presented herein were prepared based upon the specific samples provided for testing. We assume no responsibility for variation in quality (composition, appearance, etc.) or any other feature of similar subject matter provided by persons or conditions over which we have no control. Our letters and reports are for the exclusive use of the clients to whom they are addressed and shall not be reproduced except in full without the written approval of Rone Engineering Services, Ltd. (KW /KG) Page 2 of 3 Rone Engineering Client: Project: Gateway Business Center Coppell, Texas Services: Perform In Place Density Testing Contractor: Constructors Associates Test Method: ASTM D -2922 ASTM D -3017 M/D No. 277811 Tannish Brown Dark Brown Silty Clay Test No Transwestern Commercial Services 5001 Spring Valley Dallas, TX 75244 Utility backfill 1 6" sanitary sewer below grade Utility backfill 2 6" sanitary sewer below grade Utility backfill 3 6" sanitary sewer below grade Utility backfill 4 5" sanitary sewer below grade Utility backfill 5 6" sanitary sewer below grade Utility backfill 6 6" sanitary sewer below grade Test Location Description line, 2100' from east end, 8' line, 2100' from east end, 7' line, 2100' from east end, 6' line, 2100' from east end, 5' line, 2100' from east end, 4' line, 2100' from east end, 3' PROJECT DATA Gauge: Troxler 3430 Gauge Serial No: 35518 Test Mode: DT MOISTURE DENSITY RELATIONS Moisture 24.0 Report No.: 282888 Project No.: 0712786 Date of Service: 03/26/2007 Report Date: 04/05/2007 Standard Counts Moisture Density Current: 742 Current: 2628 Previous: 744 Previous: 2627 Maximum Density (pcf) 94.0 8908 Ambassador Row, Dallas, TX 75247 7701 W Little York, Ste 600, Houston, TX 77040 4421 Friedrich, Ste 195, Austin, TX 78744 Corporate Phone: (214) 630 -9745 In -Place Density Testing Project Requirements Moisture Density Optimum +4 95 min FIELD DENSITY TESTS Probe M/D Moisture Wet Density Dry Density Density Depth No. (pcf) (pcf) max) 6" 277811 26.8 119.2 94.0 100 6" 277811 25.7 118.9 94.6 101 6" 277811 27.0 118.7 93.5 100 6" 277811 26.6 119.3 94.2 100 6" 277811 24.7 112.7 90.4 96 6" 277811 24.2 112.0 90.2 96 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 /KG) Page 1 of 3 Rone Engineering Client: Transwestern Commercial Services 5001 Spring Valley Dallas, TX 75244 Project: Gateway Business Center Coppell, Texas Services: Perform In -Place Density Testing Test No Test Location FIELD DENSITY TESTS 8908 Ambassador Row, Dallas, TX 75247 7701 W Little York, Ste 600, Houston, TX 77040 4421 Friedrich, Ste 195, Austin, TX 78744 Corporate Phone: (214) 630 -9745 In -Place Density Testing Report No.: 282888 Project No.: 0712786 Date of Service: 03/26/2007 Report Date: 04/05/2007 Probe M/D Moisture Wet Density Dry Density Density Depth No. (pcf) (pcf) max) Utility backfill 7 6" sanitary sewer line, 2100' from east end, 2' 6" 277811 24.0 113.0 91.1 97 below grade Utility backfill 8 6" sanitary sewer line, 2100' from east end, 1' 6" 277811 24.2 113.0 91.0 97 below grade 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 /KG) Page 2 of 3 Rone Engineering Client: Project: Gateway Business Center Coppell, Texas Obtain samples of fresh concrete at the placement locations, perform required testing, cast compressive strength samples and bring sample: back to the laboratory for curing and testing in accordance with applicable standards. PROJECT DATA Services: Transwestern Commercial Services 5001 Spring Valley Dallas, TX 75244 Contractor: Constructors Associates Concrete Supplier: Redi -Mix Concrete Plant: 136 Specification Requirements Strength: 3,000 psi 28 days Slump (in.): 5" 7" Air NA Test Method: ASTM C -172 ASTM C -31 (except 10.1.2) ASTM C -143 ASTM C -231 ASTM C -1064 ASTM C -138 ASTM C -39 Cylinder Marked Date Age Set No. Tested (days) 1 1 04/02/2007 7 1 2 04/23/2007 28 1 3 04/23/2007 28 1 4 HOLD Diameter (in) 6.00 Mix Design I.D.: 1521 Placement Date: 03/26/2007 Weather Conditions: Cloudy Time Sampled: 10:30am Temperature Air: 74 °F Truck No: 1017 Air Content: NA Overall Placement Location: Piers, see report #282871 Sample Location: Pier A/16.3 REPORT OF TESTS Concrete Compressive Cylinder 6" x 12" Maximum Load (Ibs) Area (in 28.27 8908 Ambassador Row, Dallas, TX 75247 7701 W Little York, Ste 600, Houston, TX 77040 4421 Friedrich, Ste 195, Austin, TX 78744 Corporate Phone: (214) 630 -9745 Concrete Compressive Strength Tesi 103,540 Report No.: 282872 Project No.: 0712786 Date of Service: 03/26/2007 Report Date: 04/05/2007 Batch time: 09:59am Concrete: 75 °F Ticket No: 13683407 Unit Weight (pcf): NA Compressive Strength (psi) 3,660 Measured Slump (inches) 5.0 Fracture Type LIMITATIONS: The test results presented herein were prepared based upon the specific samples provided for testing. We assume no responsibility for variation in quality (composition, appearance, etc.) or any other feature of similar subject matter provided by persons or conditions over which we have no control. Our letters and reports are for the exclusive use of the clients to whom they are addressed and shall not be reproduced except in full without the written approval of Rone Engineering Services, Ltd. (TM /KG) Page 1 of 2 Rone Engineering Client: Transwestern Commercial Services 5001 Spring Valley Dallas, TX 75244 Project: Gateway Business Center Coppell, Texas Services: Obtain samples of fresh concrete at the placement locations, perform required testing, cast compressive strength samples and bring sample: back to the laboratory for curing and testing in accordance with applicable standards. Contractor: Constructors Associates Concrete Supplier: Redi -Mix Concrete Plant: 136 Specification Requirements Strength: 3,000 psi 28 days Slump (in.): 5" 7" Air NA Test Method: ASTM C -172 ASTM C -31 (except 10.1.2) ASTM C -143 ASTM C -231 ASTM C -1064 ASTM C -138 ASTM C -39 Cylinder Marked Date Age Set No. Tested (days) 1 1 03/27/2007 7 1 2 04/17/2007 28 6.00 1 3 04/17/2007 28 6.00 1 4 HOLD Diameter (in) 5.99 PROJECT DATA Mix Design I.D.: Placement Date: Weather Conditions: Time Sampled: Temperature Air: Truck No: Air Content: Overall Placement Location: Piers, D/7, D /8, D /9, D /10, D /12, D/15, B /9, B/10, B/11, B/13, C /10, C/12, B /14, B/15, B /16, C /14, C /15, D /16 Sample Location: Pier D/7 REPORT OF TESTS Concrete Compressive Cylinder 6" x 12" Maximum Load (Ibs) Area (in Concrete Compressive Strength Tesi 28.18 89,500 Report No.: 282196 Project No.: 0712786 Date of Service: 03/20/2007 Report Date: 04/05/2007 1521 03/20/2007 Cloudy 10:30am 70 °F 1182 NA 28.27 136,580 28.27 132,410 Average 8908 Ambassador Row, Dallas, TX 75247 7701 W Little York, Ste 600, Houston, TX 77040 4421 Friedrich, Ste 195, Austin, TX 78744 Corporate Phone: (214) 630 -9745 Batch time: 09:34am Concrete: 74 °F Ticket No: 13682826 Unit Weight (pcf): NA Compressive Strength (psi) 3,180 4,830 4,680 4,760 Measured Slump (inches) 5.0 Fracture Type Unbonded Cap 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. (TM /KG) Page 1 of 3 Rone Engineering i Client: Transwestern Commercial Services 5001 Spring Valley Dallas, TX 75244 Remarks: Water added at site: 10 gallons 8908 Ambassador Row, Dallas, TX 75247 7701 W Little York, Ste 600, Houston, TX 77040 4421 Friedrich, Ste 195, Austin, TX 78744 Corporate Phone: (214) 630 -9745 Concrete Compressive Strength Tesi Report No.: 282196 Project No.: 0712786 Date of Service: 03/20/2007 Report Date: 04/05/2007 Project: Gateway Business Center Coppell, Texas Services: Obtain samples of fresh concrete at the placement locations, perform required testing, cast compressive strength samples and bring sample: back to the laboratory for curing and testing in accordance with applicable standards. LIMITATIONS: The test results presented herein were prepared based upon the specific samples provided for testing. We assume no responsibility for variation in quality (composition, appearance, etc.) or any other feature of similar subject matter provided by persons or conditions over which we have no control. Our letters and reports are for the exclusive use of the clients to whom they are addressed and shall not be reproduced except in full without the written approval of Rone Engineering Services, Ltd. (TM /KG) Page 2 of 3 Rone Engineering Client: Project: Gateway Business Center Coppell, Texas Services: Perform In Place Density Testing Contractor: Constructors Associates Test Method: ASTM D -2922 ASTM D -3017 M/D No. 277809 Dark Brown Clay 277810 Tannish Brown Silty Clay Test No 1 2 3 4 5 Transwestern Commercial Services 5001 Spring Valley Dallas, TX 75244 Test Location Fill Building pad 2, northwest corner, east, 9th lift Fill Building pad 2, northwest corner, east, 9th lift Fill Building pad 2, northwest corner, 110' east, 9th lift Fill Building pad 2, northwest corner, east, 9th lift Fill Building pad 2, northwest corner, east, 9th lift Description PROJECT DATA Gauge: Troxler 3430 Gauge Serial No: 35518 Test Mode: DT MOISTURE DENSITY RELATIONS 25' south, 35' 25' south, 70' 25' south, 75' south, 35' 75' south, 70' FIELD DENSITY TESTS Probe M/D Depth No. 6" 277810 6" 277810 6" 277810 6" 277810 6" 277810 Maximum Moisture Density (pcf) 27.0 89.0 24.5 93.5 8908 Ambassador Row, Dallas, TX 75247 7701 W Little York, Ste 600, Houston, TX 77040 4421 Friedrich, Ste 195, Austin, TX 78744 Corporate Phone: (214) 630 -9745 In -Place Density Testing Report No.: 280386 Project No.: 0712786 Date of Service: 03/02/2007 Report Date: 04/05/2007 Standard Counts Moisture Density Current: 741 Current: 2649 Previous: 744 Previous: 2652 Project Requirements Moisture Density Minimum +4 92 -96 Minimum +4 92 -96 Moisture Wet Density Dry Density Density (pcf) (pcf) max) 30.8 116.9 32.7 116.8 32.3 116.6 32.4 116.5 33.7 116.2 89.4 96 88.0 94 88.1 94 88.0 94 86.9 93 LIMITATIONS: The test results presented herein were prepared based upon the specific samples provided for testing. We assume no responsibility for variation in quality (composition, appearance, etc.) or any other feature of similar subject matter provided by persons or conditions over which we have no control. Our letters and reports are for the exclusive use of the clients to whom they are addressed and shall not be reproduced except in full without the written approval of Rone Engineering Services, Ltd. (TM /KG) Page 1 of 3 Rone Engineering i0 Client: Transwestem Commercial Services 5001 Spring Valley Dallas, TX 75244 Project: Gateway Business Center Coppell, Texas Services: Perform In -Place Density Testing FIELD DENSITY TESTS 8908 Ambassador Row, Dallas, TX 75247 7701 W Little York, Ste 600, Houston, TX 77040 4421 Friedrich, Ste 195, Austin, TX 78744 Corporate Phone: (214) 630 -9745 In -Place Density Testing Report No.: 280386 Project No.: 0712786 Date of Service: 03/02/2007 Report Date: 04/05/2007 Test Probe MID Moisture Wet Density Dry Density Density No Test Location Depth No. (pcf) (pcf) max) Fill 6 Building pad 2, northwest comer, 75' south, 6" 277810 32.5 116.5 87.9 94 110' east, 9th lift Fill 7 Building pad 2, northwest corner, 125' south, 6" 277810 30.4 112.0 85.9 92 35' east, 9th lift Fill 8 Building pad 2, northwest corner, 125' south, 6" 277809 31.8 111.9 84.9 95 70' east, 9th lift Fill 9 Building pad 2, northwest corner, 125' south, 6" 277810 30.2 112.2 86.2 92 110' east, 9th lift Fill 10 Building pad 2, northwest corner, 175' south, 6" 277810 30.2 111.7 85.8 92 35' east, 9th lift Fill 11 Building pad 2, northwest corner, 175' south, 6" 277810 32.1 117.3 88.8 95 70' east, 9th lift Fill 12 Building pad 2, northwest corner, 175' south, 6" 277810 31.5 116.9 88.9 95 110' east, 9th lift LIMITATIONS: The test results presented herein were prepared based upon the specific samples provided for testing. We assume no responsibility for variation in quality (composition, appearance, etc.) or any other feature of similar subject matter provided by persons or conditions over which we have no control. Our letters and reports are for the exclusive use of the clients to whom they are addressed and shall not be reproduced except in full without the written approval of Rone Engineering Services, Ltd. (TM /KG) Page 2 of 3