1. Legend for Geotechnical Data
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      Aptim Environmental & Infrastructure, LLC
      6401 Congress Avenue, Suite 140
      Boca Raton, Florida 33487
      Phone # 1-561-391-8102
      Legend for Geotechnical Data
      Grain Size Scale for Sediments
      Proportional Definition of Descriptive Terms
      Descriptive Term
      Range of Proportions
      Sandy, gravelly, etc.
      35 % to 50 %
      Some
      20 % to 35 %
      Little
      10 % to 20 %
      Trace
      1 % to 10 %
      Consistency of Cohesive Soils
      Description
      Consistency
      Index
      Approximate
      Undrained Shear
      Strength (kPa)
      Field Identification
      Hard
      Over 300
      Indented with difficulty by thumbnail, brittle.
      Very Stiff
      >1
      150-300
      Readily indented by thumbnail, still very tough.
      Stiff
      0.75-1
      75-150
      Readily indented by thumb but penetrated only with difficulty. Cannot
      be moulded in the fingers.
      Firm
      0.5-0.75
      40-75
      Can be penetrated several centimeters by thumb with moderate effort
      and moulded in fingers by strong pressure.
      Soft
      < 0.5
      20-40
      Easily penetrated several centimeters by thumb, easily moulded.
      Very Soft
      Less than 20
      Easily penetrated several centimeters by fist, exudes between fingers
      when squeezed in fist.
      Source:
      Engineering Properties of Soils and Rocks, Fourth Edition by Fred G. Bell
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      USCS Classifications
      Refers to the Army Corps of Engineers Unified Soils Classification System. Class types
      are defined primarily by grain size, sorting and percent of material passing the #200 sieve.
      Classification of materials on the core logs based on visual field examinations are identified on
      the core logs under the Classification of Materials Description. Classifications based on
      laboratory sieve analyses are identified on the core logs in the Legend and under Remarks.
      Note:
      Information is after ACOE Atlantic Division Manual # 1110-1-1 titled
      Engineering and Design
      Geotechnical Manual for Surface and Subsurface Investigations
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      LEAN CLAY, very soft, some sand, fine grained,
      quartz, sand distributed in laminae, sand increases
      with depth in layer, dark gray (5Y-4/1), (CL).
      FAT CLAY, stiff, little rock fragments, trace sand, fine
      grained, quartz, rock fragments are fragments of
      lithified clay typically up to 0.08", 1.0" rock fragments
      @ 1.4' and 1.5', light olive brown (2.5Y-5/3), (CH).
      FAT CLAY, hard, little sand, fine grained, quartz, trace
      shell hash, sand increases with depth in layer, color is
      mottled reddish brown (5YR-5/4), greenish gray
      (10Y-5/1) and olive gray (5Y-5/2), (CH).
      SAND, fine grained, quartz, some clay, some silt, clay
      distributed in pockets up to 3.0", increased clay
      content between 7.7' and 8.0', color is mottled gray
      (5Y-5/1), olive gray (5Y-4/2) and olive (5Y-5/3),
      (SM).
      SAND, fine grained, quartz, some silt, little clay, clay
      increases with depth in layer, dark gray (2.5Y-4/1),
      (SM).
      FAT CLAY, hard, trace organics, trace sand, fine
      grained, quartz, trace shell hash, trace whole shell,
      organics distributed in laminae, (0.5" x 3.0") oxidized
      sand pocket @ 11.3', wavy bedding between 12.6' &
      14.1', 0.5" whole gastropod @ 15.7', (1.0" x 2.0")
      sandy pocket @ 16.0', Bit sample from 18.7' to 18.8',
      dark gray (5Y-4/1), (CH).
      No recovery.
      End of Boring
      -49.6
      -50.1
      -53.2
      -56.6
      -58.0
      -67.4
      -67.6
      1.0
      1.5
      4.6
      8.0
      9.4
      18.8
      19.0
      T1
      T2
      T3
      1
      2
      T4
      Sample #T1, Depth = 0.5'
      Ave. Field Vane (tsf): 0.00
      Sample #T2, Depth = 1.2'
      Ave. Field Vane (tsf): 0.10
      Sample #T3, Depth = 3.5'
      Ave. Field Vane (tsf): 0.36
      Sample #1, Depth = 6.2'
      Mean (mm): 0.13, Phi Sorting: 0.48
      Fines (230): 30.22%
      Fines (200): 32.48% (SM)
      Sample #2, Depth = 8.5'
      Mean (mm): 0.13, Phi Sorting: 0.53
      Fines (230): 28.20%
      Fines (200): 31.29% (SM)
      Sample #T4, Depth = 12.1'
      Ave. Field Vane (tsf): 0.41
      3. DRILLING AGENCY
      2. BORING DESIGNATION
      2
      0.0 Ft.
      LOCATION COORDINATES (ft)
      TX GLO Region 1 Recon Geotechnical Sand Search
      Jefferson, Chambers, Galveston and Brazoria Co.
      15. DATE BORING
      0.0
      18.8 Ft.
      BF
      10. COORDINATE SYSTEM/DATUM
      11. MANUFACTURER'S DESIGNATION OF DRILL
      DISTURBED
      UNDISTURBED (UD)
      18. SIGNATURE AND TITLE OF INSPECTOR
      14. ELEVATION GROUND WATER
      Texas State Plane South
      COMPLETED
      19.0 Ft.
      STARTED
      3.0 In.
      X = 3,228,927 Y = 13,575,627
      -48.6
      VERTICAL
      VERTICAL
      INCLINED
      0.0 Ft.
      8. TOTAL DEPTH OF BORING
      TXGLO1-VC-23-079
      AUTO HAMMER
      MANUAL HAMMER
      APTIM
      6. THICKNESS OF OVERBURDEN
      CONTRACTOR FILE NO.
      7. DEPTH DRILLED INTO ROCK
      10-16-23
      -48.6 Ft.
      DIVISION
      INSTALLATION
      16. ELEVATION TOP OF BORING
      17. TOTAL RECOVERY FOR BORING
      NAVD88
      4
      APTIM SEAS VC-700 Vibracore
      9. SIZE AND TYPE OF BIT
      12. TOTAL SAMPLES
      13. TOTAL NUMBER CORE BOXES
      DEG. FROM
      VERTICAL
      5. DIRECTION OF BORING
      BEARING
      4. NAME OF DRILLER
      HORIZONTAL
      APTIM
      DRILLING LOG
      NAD 1983
      1. PROJECT
      10-16-23
      %
      REC.
      Boring Designation
      REMARKS
      The USCS classification system defines silt as the
      percent passing the No.200 (0.075 mm) sieve
      SHEET 1
      BOX OR
      SAMPLE
      CLASSIFICATION OF MATERIALS
      Depths and elevations based on measured values
      ELEV.
      (ft)
      LEGEND
      DEPTH
      (ft)
      0
      5
      10
      15
      20
      25
      TXGLO1-VC-23-079
      JUN 04
      SAJ FORM 1836
      OF 1 SHEETS
      REGION1_RECON_GEOTECH.GPJ 3/25/24
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      O'
      1'
      2'
      3'
      ""'-,
      .
      I
      ', ,.
      '11
      ',
      .,
      ,,
      1,J
      f
      i
      -·
      4'
      '\
      5'
      5'
      10'
      6'
      11'
      7'
      12'
      8'
      13
      '
      ]
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      -
      -;
      1
      -
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      '•
      9'
      14'
      15'
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      -
      t
      ,;
      18'
      19'
      Texas General
      Land Office
      Texas GLO
      Region 1
      Geotechnical
      Reconnaissance
      Survey
      TXGLOl-VC-2
      3-079
      Date Collected: 10/16/23
      Top Elev. (ft NAVD88): -48.6
      Bottom Elev. (ft NAVD88): -67.4
      Core Length (ft): 18.8
      >
      APTIM
      6401 Congress Avenue, Suite 140
      Boca Raton, FL 33487
      www.aptim.com
      (561)391-8102
      3/4"
      -4.25
      19.03
      0.00
      0.00
      0.00
      0.00
      5/8"
      -4.00
      16.00
      0.00
      0.00
      0.00
      0.00
      7/16"
      -3.50
      11.31
      0.00
      0.00
      0.00
      0.00
      5/16"
      -3.00
      8.00
      0.00
      0.00
      0.00
      0.00
      3.5
      -2.50
      5.66
      0.00
      0.00
      0.00
      0.00
      4
      -2.25
      4.76
      0.00
      0.00
      0.00
      0.00
      5
      -2.00
      4.00
      0.00
      0.00
      0.00
      0.00
      7
      -1.50
      2.83
      0.00
      0.00
      0.00
      0.00
      10
      -1.00
      2.00
      0.03
      0.03
      0.03
      0.03
      14
      -0.50
      1.41
      0.00
      0.00
      0.03
      0.03
      18
      0.00
      1.00
      0.00
      0.00
      0.03
      0.03
      25
      0.50
      0.71
      0.02
      0.02
      0.05
      0.05
      35
      1.00
      0.50
      0.01
      0.01
      0.06
      0.06
      45
      1.50
      0.35
      0.05
      0.05
      0.11
      0.11
      60
      2.00
      0.25
      2.45
      2.28
      2.56
      2.39
      80
      2.50
      0.18
      11.85
      11.04
      14.41
      13.43
      120
      3.00
      0.13
      26.27
      24.47
      40.68
      37.90
      170
      3.50
      0.09
      28.41
      26.46
      69.09
      64.36
      200
      3.75
      0.07
      3.39
      3.16
      72.48
      67.52
      230
      4.00
      0.06
      2.43
      2.26
      74.91
      69.78
      Munsell:
      Mean Phi
      2.9
      Phi 5
      Phi 16
      Phi 25
      Phi 50
      3.23
      Phi 75
      2.74
      Phi 84
      2.55
      107.36
      Dry Weight (g):
      3,228,927
      Sieve Number
      Shell Hash (%):
      Easting (ft):
      Northing (ft):
      Skewness
      -0.62
      Kurtosis
      5.15
      -54.8 NAVD88
      1.61
      Depths and elevations based on measured values
      #200 - 32.48
      #230 - 30.22
      13,575,627
      Texas State Plane South
      Granularmetric Report
      0.02
      Wash Weight (g):
      Pan Retained (g):
      Sieve Loss (%):
      Organics (%):
      Carbonates (%):
      Wet - 5Y-5/3
      Dry - 5Y-6/4
      SM
      Washed - 10YR-8/1
      Coordinate System:
      76.54
      Phi 95
      2.12
      Mean mm
      0.13
      Sieve Size
      (Phi)
      Sieve Size
      (Millimeters)
      Grams
      Retained
      % Weight
      Retained
      Cum. Grams
      Retained
      C. % Weight
      Retained
      Elevation (ft):
      USCS:
      Comments:
      Sorting
      0.48
      Moment
      Statistics
      Fines (%):
      Project Name:
      Sample Name: TXGLO1-VC-23-079 #1
      Analysis Date: 02-12-24
      Analyzed By: WMM
      TX GLO Region 1 Recon Geotechnical Sand Search
      REGION1_RECON_GEOTECH.GPJ 3/6/24
      APTIM
      6401 Congress Avenue, Suite 140
      Boca Raton, FL 33487
      ph (561) 391-8102
      3/4"
      -4.25
      19.03
      0.00
      0.00
      0.00
      0.00
      5/8"
      -4.00
      16.00
      0.00
      0.00
      0.00
      0.00
      7/16"
      -3.50
      11.31
      0.00
      0.00
      0.00
      0.00
      5/16"
      -3.00
      8.00
      0.00
      0.00
      0.00
      0.00
      3.5
      -2.50
      5.66
      0.00
      0.00
      0.00
      0.00
      4
      -2.25
      4.76
      0.00
      0.00
      0.00
      0.00
      5
      -2.00
      4.00
      0.00
      0.00
      0.00
      0.00
      7
      -1.50
      2.83
      0.00
      0.00
      0.00
      0.00
      10
      -1.00
      2.00
      0.00
      0.00
      0.00
      0.00
      14
      -0.50
      1.41
      0.00
      0.00
      0.00
      0.00
      18
      0.00
      1.00
      0.01
      0.01
      0.01
      0.01
      25
      0.50
      0.71
      0.00
      0.00
      0.01
      0.01
      35
      1.00
      0.50
      0.01
      0.01
      0.02
      0.02
      45
      1.50
      0.35
      0.07
      0.06
      0.09
      0.08
      60
      2.00
      0.25
      2.55
      2.37
      2.64
      2.45
      80
      2.50
      0.18
      17.58
      16.32
      20.22
      18.77
      120
      3.00
      0.13
      18.03
      16.74
      38.25
      35.51
      170
      3.50
      0.09
      28.88
      26.82
      67.13
      62.33
      200
      3.75
      0.07
      6.87
      6.38
      74.00
      68.71
      230
      4.00
      0.06
      3.33
      3.09
      77.33
      71.80
      Munsell:
      Mean Phi
      2.91
      Phi 5
      Phi 16
      Phi 25
      Phi 50
      3.27
      Phi 75
      2.69
      Phi 84
      2.42
      107.70
      Dry Weight (g):
      3,228,927
      Sieve Number
      Shell Hash (%):
      Easting (ft):
      Northing (ft):
      Skewness
      -0.3
      Kurtosis
      2.41
      -57.1 NAVD88
      3.17
      Depths and elevations based on measured values
      #200 - 31.29
      #230 - 28.20
      13,575,627
      Texas State Plane South
      Granularmetric Report
      0.04
      Wash Weight (g):
      Pan Retained (g):
      Sieve Loss (%):
      Organics (%):
      Carbonates (%):
      Wet - 2.5Y-4/1
      Dry - 2.5Y-5/1
      SM
      Washed - 2.5Y-8/1
      Coordinate System:
      80.54
      Phi 95
      2.08
      Mean mm
      0.13
      Sieve Size
      (Phi)
      Sieve Size
      (Millimeters)
      Grams
      Retained
      % Weight
      Retained
      Cum. Grams
      Retained
      C. % Weight
      Retained
      Elevation (ft):
      USCS:
      Comments:
      Sorting
      0.53
      Moment
      Statistics
      Fines (%):
      Project Name:
      Sample Name: TXGLO1-VC-23-079 #2
      Analysis Date: 02-12-24
      Analyzed By: WMM
      TX GLO Region 1 Recon Geotechnical Sand Search
      REGION1_RECON_GEOTECH.GPJ 3/6/24
      APTIM
      6401 Congress Avenue, Suite 140
      Boca Raton, FL 33487
      ph (561) 391-8102
      alt
      0
      10
      20
      30
      40
      50
      60
      70
      80
      90
      100
      100
      5
      10
      5
      1
      5
      0.1
      5
      0.01
      5
      0.001
      Sort
      -3
      5/16
      -1.5
      7
      2.9
      0.48
      PHI Sieve Sizes
      Standard Sieve Sizes
      Silt and Clay
      #200 - 32.48
      #230 - 30.22
      -0.62
      5.15
      Coarse
      Medium
      Fine
      Percent Finer By Weight
      2.5
      80
      3
      120
      3.75
      200
      Depths and elevations based on measured values
      USCS % Fines % Organics % Carbonates
      SM
      3.23
      Sample
      Sample Information
      0
      18
      -1
      10
      -0.5
      14
      -54.8
      Symbol Elev. (ft)
      Comments:
      Coarse
      Fine
      Gravel
      0.5
      25
      1
      35
      1.5
      45
      Median Mean Skew
      Kurt
      Hydrometer
      Millimeters
      3.5
      170
      4
      230
      -2
      5
      -2.25
      4
      -4
      5/8
      2
      60
      -4.25
      3/4
      Percent Coarser By Weight
      10
      20
      30
      40
      50
      60
      70
      80
      90
      100
      0
      Sand
      Project Name:
      Analysis Date:
      Analyzed By:
      Easting (X, ft):
      Northing (Y, ft):
      Horizontal Datum:
      Vertical Datum:
      02-12-24
      WMM
      3,228,927
      13,575,627
      NAD 1983
      NAVD88
      TXGLO1-VC-23-079 #1
      TX GLO Region 1 Recon Geotechnical Sand Search
      REGION1_RECON_GEOTECH.GPJ 3/6/24
      APTIM
      6401 Congress Avenue, Suite 140
      Boca Raton, FL 33487
      ph (561) 391-8102
      alt
      0
      10
      20
      30
      40
      50
      60
      70
      80
      90
      100
      100
      5
      10
      5
      1
      5
      0.1
      5
      0.01
      5
      0.001
      Sort
      -3
      5/16
      -1.5
      7
      2.91
      0.53
      PHI Sieve Sizes
      Standard Sieve Sizes
      Silt and Clay
      #200 - 31.29
      #230 - 28.20
      -0.3
      2.41
      Coarse
      Medium
      Fine
      Percent Finer By Weight
      2.5
      80
      3
      120
      3.75
      200
      Depths and elevations based on measured values
      USCS % Fines % Organics % Carbonates
      SM
      3.27
      Sample
      Sample Information
      0
      18
      -1
      10
      -0.5
      14
      -57.1
      Symbol Elev. (ft)
      Comments:
      Coarse
      Fine
      Gravel
      0.5
      25
      1
      35
      1.5
      45
      Median Mean Skew
      Kurt
      Hydrometer
      Millimeters
      3.5
      170
      4
      230
      -2
      5
      -2.25
      4
      -4
      5/8
      2
      60
      -4.25
      3/4
      Percent Coarser By Weight
      10
      20
      30
      40
      50
      60
      70