Four Corner - Texas Water Development Board

LOG OF SOIL BORING
Project Name: Richmond Treatment Plant
Boring No.: 8-4 Date: July 15, 1992
Depth of water encountered during drilling: none
Groundwater at none after 1/2 hour
Project No. 92-160G
Elevation: See text
Depth to caving: none
• • • •
SOIL SYMBOLS
SHEAR STRENGTH. TSF
aEVATION
DEPTH
SAMPLER SYMBOLS SOIL DESCRIPTION %~~~ 5
?c°F o.J o.6 o.s 1.2 1.s 1.a 2.1 2.4 2.1
AND FlaD TEST DATA MOISTURE 0 CONTENT.%
(1------L----------f---------------+--+-- PLASTIC LIMIT ~- LIQUID LIMIT
10 2Q. 'O 40 50 60 70 80 90
'O
- .......................................................
Stiff to very stiff gray CLAY w/ roots
and stones
-5
w/ ferrous nodules and sandstones
below 2'
- ................................................... .
Stiff to very stiff brown and gray SILTY
CLAY w/ calcareous nodules
w/ roots to 6'
w/ stones and ferrous nodules below 6'
- ................................... .
Medium dense CLAYEY SAND 39
96
I •
llt--+--j
t-- 15
r
r
r
t-- 20
- .......................................................... .
Very stiff brown slickensided CLAY w/
calcareous nodules and sand partings
1\
\
t-- 25
r
r
r
r
f-30
-
-35
Shear Types: • =Hand Penet. • =Torvane • = Unconf. Camp. • = UU Tnax1al
See Plate 1 for boring location. Plate 5
HVJ ASSOCIATES, INC.