Amberpoint BP 2R-LR060122WATER INJECTION OBSERVATION
'lrerracon
8901 Carpenter F n~/., Suite #/00
Dallas Texas 75247
(214) 630-1010
Date of Service: 0]/25/06 Report No.:
Client No.: 50854 Project No.:
Client: Transwestern Commercial Services Project:
5001 Spring Valley Rd Ste 600 W
Dallas, TX 75244
94051418.0116
94051418
AmberPoint Business Park
Buildings 4, 5 and 6
505 South Royal Lane
Coppell, TX
Location:
Procedure:
Building #5, from E end to 350' W General Contractor: Rogers-O'Brien Construction Co.
and N side to 70' S Injector: Jowell
On this date, a Terracon technician observed the injection of water at this site. During the
injection process, the following observations were recorded.
Pass No,: 7th No. of Probes: 4 Probe Length: 7 feet
OBSERVATION
SPECIFICATION Yes No N/A
Surfactant added to each load. X
Injection pressure 50 to 200 psi at manifold. X
Injection downward in 18 inch intervals. X
Total depth of injection was 7 feet. X
Spacing of injection was 5 feet maximum. X
Injection to refusal at each location. X
Comments: The 7th pass of water injection started along the north side of the building pad at the east end °f the
pad. Very hard material was encountered at variable depths of 3 feet to 6 feet from the east end to
220 feet ± westward and from the north side to 50 feet south. The injection contractor was unable
to penetrated this hard material at several locations.
NOTE: Injection rigs bent several injection rods throughout the day plus minor mechanical
problems contributed to a small area being injected on this date. In the afternoon,
the injection contractor was advancing the rods too fast at each 18 inch interval, not
allowing refusal of water. The spacing between injections was too far apart in the
afternoon.
Field Results Report To:
Technician: J. Perdue
Report Distribution:
(1) Transwestern Commercial Services
(1) Ci[y of Coppell TX
(1) City of Coppell TX
99pdr
(1) Rogers O'Brien Construction Co
(1) O'Brien & Assoc
(1) TechniStructures
Hussein H. Abusaad, P.E.
Senior Project Manager
This report is exclusively for the use of the client indicated above and shall not be reproduced in full without written approval of Terracon.