Big Cedar-LR 920730reed engineering
GEOTECHNICAL CONSULTANT~
June 30, 1992
Project No. 824.1
Report No. 7
Matthews Investments Southwest, Inc.
5220 Spring Valley Road, suite 500
Dallas, Texas 75240
ATTN: Mr. Tim House
Re:
Construction Materials Testing
Big Cedar Addition
Harris Road
Coppell, Texas
Gentlemen:
Submitted here are the results of testing and observation of
construction materials at the referenced project. This report
-addresses activities for the period of May 13 through June 30, 1992.
During the above period, 13 field density tests were taken on the
fill placed in the slope area between Lots 4 and 5 and on fill
placed in the residential building pads of Lots 7, 8, 9, and 10.
Where tested, the materials were found to be in compliance with
project specifications, except as noted. Where materials were not
in compliance, the soils were reworked and retested. Test failures
and retests are noted in lower and upper case letters, respectively.
If any questions arise, do not hesitate to call.
Sincerely,
Ronald F. Reed, P.E.
MDS/RFR/wde
copies submitted:
(2) Matthews Investments Southwest, Inc./
Mr. Tim House
(1) Goodwin & Marshall, Inc./Mr. Robert Marshall
~1) city of Coppell/Mr. Larry Davis
2424 STUTZ DRIVE · SUITE400 · DALLAS, TEXAS75235 · 214/350-5600 · (FAX) 214/350-0019
reed engineering
BIG CEDAR ADDITION
HARRIS ROAD
COPPELLv TEXAS
REPORT NO. 7
Date
05-13-92
05-14-92
06-23-92
06-30-92
Test
No.
68
69
70
71
72
73
74
75
76
77
78
79
80
Field Density Tests
Lot No,
Depth
Below Unit
Final Dry
S.G. Weight
(feet) (Dcf)
4 & 5
4 & 5
4 & 5
4 & 5
4 & 5
4 & 5
4 & 5
4 & 5
8
9
10
7
8
9.0 107.5
8.0 107.6
8.0 110.0
7.0 101.1
7.0 108.7
7.0 108.9
6.0 112.6
6.0 112.2
0.0 110.3
0.0 109.7
0.0 106.5
1.0 115.2
1.0 114.4
Com-
pac-
Moisture tion
Content Curve Level
(%) No. (%)
15.2 3 97.5
14.8 3 97.6
14.6 3 99.7
22.0 3 91.7a'
15.7 3 98.5A
17.1 3 98.7
15.9 1/3 98.2
14.8 1/3 97.8
16.5 3 100.0
16.7 3 99.5
18.3 3 99.6
13.3 1 96.7
13.7 2 97.2
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GEOTECHNICAL CONSULTANTS