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Four Corner - Texas Water Development Board

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LOG OF SOIL BORING<br />

Project Name: Richmond Treatment Plant<br />

Boring No.: 8-9 Date: July 17, 1992<br />

Depth of water encountered during drilling: 34 feet<br />

/ Groundwater at 31 feet after 1/2 hour<br />

ELEVATION<br />

DEPTH<br />

SOIL SYMBOLS<br />

SAMPLER SYMBOLS<br />

AND FIELD TEST DATA<br />

- ··············· ··········· ··········· ·············.<br />

Stiff to hard brown CLAY w/ calcareous<br />

and ferrous nodules<br />

dark brown w/ roots to 4'<br />

·200 DO<br />

%PASS PCF<br />

Project No. 92-160G<br />

Elevation: See text<br />

. . .. .<br />

Depth to caving: 32 feet<br />

SHEAR STRENGTH. TSF<br />

SOIL DESCRIPTION 0.3 0.6 0.9 1.2 1.5 1.8 2.1 2.4 2.7<br />

f}-..;_---..l..-----'----+--------------+--+--1 PLASTIC LIMIT<br />

r-o<br />

I-<br />

f.<br />

1-5<br />

reddish brown and slickensided at 5'<br />

w/ silty clay seams 6'-15'<br />

98<br />

MOISTURE 0 CONTENT. %<br />

, LIQUID LIMIT<br />

10 20 30 40 50 60 70 80 90<br />

} .<br />

'<br />

(<br />

r- 10<br />

I-<br />

I-<br />

I-<br />

I-<br />

r- 15<br />

-·<br />

I-<br />

I-<br />

1-<br />

slickensided w/ silt partings below 1 8'<br />

103<br />

i<br />

I!<br />

. ' i<br />

f-20<br />

'r<br />

li<br />

t-<br />

I<br />

1-<br />

r- 25<br />

\<br />

\<br />

r-- 30<br />

- Stiff da;k:"ii~ay SANDY CLAY w/ ...<br />

calcareous and ferrous nodules<br />

• I?<br />

! I<br />

110<br />

c-35<br />

• =Hand Penet.<br />

• =Torvane "'= Unconf. Comp. • = UU Tnax1al<br />

-!<br />

See Plate 1 for boring location. Plate 10<br />

HVJ ASSOCIATES, INC.

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