/

Hole No.

3ST-16

IDIVISION

DRILLING LOG

1

i;outhwestern

TSHEET

IOF

SHEETS

INSTALLATION

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I. PROJECT

10. SIZE AND TYPE OF BIT

GIWW Colorado River - Matagorda Bav

11. DATUM FOR ELEVATION SHOWN

(TBM

or

MSL)

2. LOCATION

(Coordinates or Station)

Sta. 494fOOOSouth Bank, Offset 20.0' Soutt

I

3. DRILLING AGENCY

Dept of the Army, GD, Corps of Engineers

4. HOLE NO.

(As shown on drawing title

and file number)

S. Nffi'a"CiRiLlER

6. DIRECTION Of HOLE

D

VERTICAL

o

INCLINED

7. THICKNESS Of OVERBURDEN

8. DEPTH DRILLED INTO ROCK

, 3ST-16

OW. FROM VERT.

9. TOTAL DEPTH OF HOLE

22.0

ELEVATION

LEGEND

CLASSifiCATION Of MATERIALS

(Description)

12. MANUfACTURER'S DESIGNATION OF DRILL

13. TOTAL NO. OF OVERBURDEN

SAMPLES TAKEN

14. TOTAL NUMBER CORE BOXES

1'5.

ELEVATION GROUND WATER

: STARTED

:

DISTURBED

i

2 Jars

16. DATE HOLE

i

7 Dec

17. ELEVATION TOP OF HOLE

18. TOTAL CORE RECOVERY FOR BORING

19. SIGNATURE OF INSPECTOR

I UNDISTURBED

i

2 Cont

: COMPLeTED

i

7

n,,~

lQhh

%

CORE

RECOV-

ERY

BOX OR

REMARKS

SAMPLE

(Drilling ti,ne, water loss, depth of

NO.

weathering, etc., if significant)

a

I

b

d

•

0.0

113.8-

13.8 116 •.0.=

16.0

118.0=

18.0 120.0=

20.0

122.0=

Water

Brown silty clay, medium

Brown silty

s~ndy

clay

v/stiff

Brown silty sand, moist

Brown silty sand, moist

20.0-20.5 Seat pent

20.5-21.0 14 blows

21.0-21.5 23 blows

21.5-22.0 Hold sample

BOTTOMED

Tide