alt
    Hole No. 3ST-31
    DIVISION
    INSTALLATION
    SHEET
    DRILLING LOG
    Southwestern
    Galv Dist En Div
    Of
    SHEETS
    1. PROJECT
    GIWW Colorado River - Matagorda B?y
    2. LOCATION
    (Coordinates 0" Station)
    3. DRILLING AGENCY
    Dept of the Army, GD, Corps of Engineers
    4. HOLE NO.
    (As shown on drawing title
    and jile number)
    3ST-31
    5. NAMJ OF PRILlER
    B!ack
    6. DIRECTION OF HOLE
    o VERTICAL
    D
    INCliNED
    7. THICKNESS OF OVERBURDEN
    8. DEPTH DRILLED INTO ROCK
    9. TOTAL DEPTH OF HOLE
    ELEVATION
    DEPTH
    LEGEND
    •
    b
    0.0
    112.5:=
    12.5 19.0=
    22.0
    Water
    oro. fROM VERT.
    CLASSifiCATION Of MATERIALS
    (Description)
    d
    Gray mucky clay v/soft
    No resistance
    10. SIZE AND TYPE OF BIT
    11. DATUM FOR ELEVATION SHOWN
    (TBM
    or
    MSL)
    Sta. 524,1000 North Bank
    12. MANUFACTURER'S DESIGNATION OF DRILL
    13. TOTAL NO. OF OVERBURDEN
    SAMPLES'TAKEN
    14. TOTAL NUMBER CORE BOXES
    1'5. ELEVATION GROUND WATER
    : DistURBED
    i 1
    Jar
    16. DATE HOLE
    : STARTED
    i
    7 Dec
    17. ELEVATION TOP OF HOLE
    18. TOTAL CORE RECOVERY fOR BORING
    19.
    SIGNATURE Of INSPECTOR
    , UNDISTURBED
    i
    1 Cont
    : COMPLETED
    i
    7 Dec 1966
    REMARKS
    % CORE
    RECOV-
    ERY
    BOX OR
    SAMPLE
    NO.
    (D1.;tling time, water loss, depth of
    weathering, etc., if significant)
    •
    f
    •
    Jar
    1
    %
    19.0 122.0=
    Gray brown clay, v/stiff
    Cont.
    1
    3.00
    BOTTOMED
    Tide ,12.0 at 10:00 AM