9th Grade Center-LR170711R9400001 11-21-16 Rev.16 Page 1 of 1
FOUNDATION OBSERVATIONS REPORT
Report Number:94171164.0086
Service Date: 07/11/17 8901 Carpenter Fwy Ste 100
Report Date:07/13/17 Dallas, TX 75247-4547
Task:214-630-1010 Reg No: F-3272
Client Project
Coppell ISD Coppell ISD 9th Grade Center
Attn: Louis Macias 1301 Wrangler Circle
1303 Wrangler Cir Coppell, TX 75019
Coppell, TX 75019
Project No.94171164
Pier Identification
LF/L10
1438
LF/L9
1439 1426
LF/L8
1440
LF/L7
1469 1427
Required Pier Diameter (in.)24 24 24 18 18 24
Required Penetration (ft.)10.0 10.0 10.0 10.0 10.0 10.0
Depth to Top of Bearing Stratum from Ground (ft.)35.1 35.4 35.5 31.0 32.0 33.9
Depth to Bottom of Pier from Ground Surface (ft.)45.4 45.6 45.6 41.4 42.2 44.2
Actual Penetration (ft.)10.3 10.2 10.1 10.4 10.2 10.3
Casing Outside Diameter (in.) 26 26 26 20 20 26
Depth to Bottom of Casing (ft.)35.4 35.4 35.5 31.0 32.0 33.0
Condition of Bottom (wet or dry)Dry Dry Dry Dry Dry Dry
Plumb Within Tolerance (yes or no)Yes Yes Yes Yes Yes Yes
Number of Vertical Bars (ea.)6 6 6 6 6 6
Reinforcing Bar Size (#)6 6 6 6 6 6
Time Drilling was Completed 0950 1030 1521 1218 1302 1509
Time Concrete Placement was Completed 1130 1247 1700 1323 1400 1605
Distance from Ground to Top of Concrete (ft.)-1.4 -1.4 1.2 -1.4 -1.4 1.2
Total Length of Concrete Pier (ft.)44.0 44.2 46.8 40.0 40.8 45.4
Top of Ground Elevation (ft.)N/A N/A N/A N/A N/A N/A
Top of Pier Elevation (ft.)N/A N/A N/A N/A N/A N/A
COMMENTS:Piers LE.5/L10 (1435) and LE.5/L9 (1436) hit existing piers.
BEARING MATERIAL:Gray shale
DRILLING CONTRACTOR:Wylie Drilling
Services:Drilled pier observation.
Terracon Rep:Jason Carrizales
Reported To:
Contractor:Northstar Builders Group, LLC Lunch/NC:
Report Distribution
(1) Coppell ISD, Louis Macias (1) Corgan Associates Inc, Keith
Cummins(1) Glenn Engineering, Robert Howman (1) Northstar Builders Group,
Charles Posey
Reviewed By:____________________________________
(1) Northstar Builders Group, Jeff Miller (1) Northstar Builders Group,
Justin Dunkin
Daniel Wood
(1) Northstar Builders Group, Roberto
Gonzalez
(1) Sizelove Construction, Nathan
Hayward
Project Manager
The tests were performed in general accordance with applicable ASTM, AASHTO, or DOT test methods. This report is exclusively for the use of the
client indicated above and shall not be reproduced except in full without the written consent of our company. Test results transmitted herein are
only applicable to the actual samples tested at the location(s) referenced and are not necessarily indicative of the properties of other apparently
similar or identical materials.