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
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
Sandy LEAN CLAY, soft, trace shell hash, trace silt,
sand component is fine grained quartz, sand
distributed in pockets typically up to 1.0", sand
increases with depth in layer, silt distributed in
laminae and sand pockets, shell hash distributed in
sand pockets, (2.0" x 3.0") sand pocket @ 0.4', color
is mottled gray (5Y-5/1) and dark gray (5Y-4/1), (CL).
SAND, fine grained, quartz, little clay, trace shell
fragments, trace shell hash, trace silt, shell fragments
are bivalve fragments up to 0.25", silt distributed in
laminae, 1.5" clay pocket @ 1.1', increased shell hash
between 1.2' & 2.1', clay distributed between 3.2' &
3.9', (1.0" x 3.0") clay pocket @ 4.2', 3.0" clay pocket
@ 4.3', (0.5" x 3.0") clay pocket @ 7.3', color is
mottled brown (7.5YR-4/2), dark grayish brown
(2.5Y-4/2), dark yellowish brown (10YR-4/4) and pale
brown (10YR-6/3), (SW).
SAND, fine grained, quartz, trace clay, trace organics,
trace silt, organics distributed in laminae, flaser
bedding throughout layer, (1.0" x 3.0") clay pocket @
8.0', clay laminae @ 11.0', 11.3', 11.7' and 12.2',
increased organics between 12.5' & 12.7', (2.0" x 3.0")
clay pocket @ 12.7', dark grayish brown (10YR-4/2),
(SP-SM).
FAT CLAY, firm, brown (7.5YR-4/2), (CH).
SAND, fine to medium grained, quartz, little silt, trace
organics, trace shell hash, silt distributed in laminae,
organics distributed in laminae, very dark grayish
brown (2.5Y-3/2), (SM).
SAND, fine to medium grained, quartz, trace clay,
trace shell fragments, trace shell hash, trace silt, trace
whole shell, trace wood fragments, clay distributed in
laminae, silt distributed in laminae, shell fragments are
bivalve fragments up to 0.25", (0.25" x 0.50") whole
bivalve @ 15.1', (0.25" x 1.0") wood fragment @
15.7', gray (2.5Y-5/1), (SW).
FAT CLAY, soft, Bit sample from 17.4' to 17.9',
color is mottled brown (7.5YR-4/2) and very dark
grayish brown (2.5Y-3/2), (CH).
No recovery.
End of Boring
-60.8
-67.3
-73.1
-73.4
-73.8
-76.9
-77.8
-79.3
0.9
7.4
13.2
13.5
13.9
17.0
17.9
19.4
1
2
T1
3
4
T2
Sample #1, Depth = 5.5'
Mean (mm): 0.15, Phi Sorting: 0.44
Fines (230): 6.58%
Fines (200): 8.25% (SP-SM)
Sample #2, Depth = 10.2'
Mean (mm): 0.15, Phi Sorting: 0.40
Fines (230): 4.35%
Fines (200): 5.99% (SP-SM)
Sample #T1, Depth = 13.3'
Ave. Field Vane (tsf): 0.05
Sample #3, Depth = 13.7'
Mean (mm): 0.17, Phi Sorting: 0.66
Fines (230): 14.52%
Fines (200): 16.34% (SM)
Sample #4, Depth = 15.5'
Mean (mm): 0.22, Phi Sorting: 0.49
Fines (230): 3.00%
Fines (200): 3.46% (SP)
Sample #T2, Depth = 17.2'
Ave. Field Vane (tsf): 0.03
3. DRILLING AGENCY
2. BORING DESIGNATION
4
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
17.9 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
19.4 Ft.
STARTED
3.0 In.
X = 3,128,474 Y = 13,469,393
-59.9
VERTICAL
VERTICAL
INCLINED
0.0 Ft.
8. TOTAL DEPTH OF BORING
TXGLO1-VC-23-092
AUTO HAMMER
MANUAL HAMMER
APTIM
6. THICKNESS OF OVERBURDEN
CONTRACTOR FILE NO.
7. DEPTH DRILLED INTO ROCK
10-18-23
-59.9 Ft.
DIVISION
INSTALLATION
16. ELEVATION TOP OF BORING
17. TOTAL RECOVERY FOR BORING
NAVD88
2
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
10-18-23
%
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-23-092
JUN 04
SAJ FORM 1836
OF 1 SHEETS
REGION1_RECON_GEOTECH.GPJ 3/25/24
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
0.02
0.02
0.02
0.02
18
0.00
1.00
0.00
0.00
0.02
0.02
25
0.50
0.71
0.01
0.01
0.03
0.03
35
1.00
0.50
0.00
0.00
0.03
0.03
45
1.50
0.35
0.01
0.01
0.04
0.04
60
2.00
0.25
2.18
1.70
2.22
1.74
80
2.50
0.18
28.29
22.07
30.51
23.81
120
3.00
0.13
55.69
43.44
86.20
67.25
170
3.50
0.09
26.30
20.52
112.50
87.77
200
3.75
0.07
5.10
3.98
117.60
91.75
230
4.00
0.06
2.14
1.67
119.74
93.42
Munsell:
Mean Phi
2.78
Phi 5
Phi 16
3.41
Phi 25
3.19
Phi 50
2.80
Phi 75
2.51
Phi 84
2.32
128.19
Dry Weight (g):
3,128,474
Sieve Number
Shell Hash (%):
Easting (ft):
Northing (ft):
Skewness
0.1
Kurtosis
3.55
-65.4 NAVD88
0.88
Depths and elevations based on measured values
#200 - 8.25
#230 - 6.58
13,469,393
Texas State Plane South
Granularmetric Report
0.05
Wash Weight (g):
Pan Retained (g):
Sieve Loss (%):
Organics (%):
Carbonates (%):
Wet - 10YR-6/3
Dry - 10YR-6/4
SP-SM
Washed - 10YR-8/2
Coordinate System:
120.69
Phi 95
2.07
Mean mm
0.15
Sieve Size
(Phi)
Sieve Size
(Millimeters)
Grams
Retained
% Weight
Retained
Cum. Grams
Retained
C. % Weight
Retained
Elevation (ft):
USCS:
Comments:
Sorting
0.44
Moment
Statistics
Fines (%):
Project Name:
Sample Name: TXGLO1-VC-23-092 #1
Analysis Date: 02-15-24
Analyzed By: SM
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
0.00
0.00
0.00
0.00
25
0.50
0.71
0.00
0.00
0.00
0.00
35
1.00
0.50
0.00
0.00
0.00
0.00
45
1.50
0.35
0.01
0.01
0.01
0.01
60
2.00
0.25
1.24
1.01
1.25
1.02
80
2.50
0.18
26.37
21.39
27.62
22.41
120
3.00
0.13
60.25
48.88
87.87
71.29
170
3.50
0.09
24.81
20.13
112.68
91.42
200
3.75
0.07
3.19
2.59
115.87
94.01
230
4.00
0.06
2.02
1.64
117.89
95.65
Munsell:
Mean Phi
2.78
Phi 5
3.90
Phi 16
3.32
Phi 25
3.09
Phi 50
2.78
Phi 75
2.53
Phi 84
2.35
123.26
Dry Weight (g):
3,128,474
Sieve Number
Shell Hash (%):
Easting (ft):
Northing (ft):
Skewness
0.27
Kurtosis
3.05
-70.1 NAVD88
0.58
Depths and elevations based on measured values
#200 - 5.99
#230 - 4.35
13,469,393
Texas State Plane South
Granularmetric Report
0.02
Wash Weight (g):
Pan Retained (g):
Sieve Loss (%):
Organics (%):
Carbonates (%):
Wet - 10YR-4/2
Dry - 10YR-6/2
SP-SM
Washed - 10YR-8/1
Coordinate System:
118.50
Phi 95
2.09
Mean mm
0.15
Sieve Size
(Phi)
Sieve Size
(Millimeters)
Grams
Retained
% Weight
Retained
Cum. Grams
Retained
C. % Weight
Retained
Elevation (ft):
USCS:
Comments:
Sorting
0.4
Moment
Statistics
Fines (%):
Project Name:
Sample Name: TXGLO1-VC-23-092 #2
Analysis Date: 02-15-24
Analyzed By: SM
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
0.04
0.04
0.04
0.04
10
-1.00
2.00
0.04
0.04
0.08
0.08
14
-0.50
1.41
0.09
0.08
0.17
0.16
18
0.00
1.00
0.10
0.09
0.27
0.25
25
0.50
0.71
0.31
0.28
0.58
0.53
35
1.00
0.50
0.49
0.44
1.07
0.97
45
1.50
0.35
1.30
1.17
2.37
2.14
60
2.00
0.25
15.53
14.00
17.90
16.14
80
2.50
0.18
24.56
22.14
42.46
38.28
120
3.00
0.13
23.70
21.36
66.16
59.64
170
3.50
0.09
22.38
20.17
88.54
79.81
200
3.75
0.07
4.27
3.85
92.81
83.66
230
4.00
0.06
2.02
1.82
94.83
85.48
Munsell:
Mean Phi
2.59
Phi 5
Phi 16
3.80
Phi 25
3.38
Phi 50
2.77
Phi 75
2.20
Phi 84
2.00
110.94
Dry Weight (g):
3,128,474
Sieve Number
Shell Hash (%):
Easting (ft):
Northing (ft):
Skewness
-0.59
Kurtosis
4.67
-73.6 NAVD88
1.07
Depths and elevations based on measured values
#200 - 16.34
#230 - 14.52
13,469,393
Texas State Plane South
Granularmetric Report
0.00
Wash Weight (g):
Pan Retained (g):
Sieve Loss (%):
Organics (%):
Carbonates (%):
Wet - 2.5Y-3/2
Dry - 10YR-5/2
SM
Washed - 10YR-7/1
Coordinate System:
95.90
Phi 95
1.60
Mean mm
0.17
Sieve Size
(Phi)
Sieve Size
(Millimeters)
Grams
Retained
% Weight
Retained
Cum. Grams
Retained
C. % Weight
Retained
Elevation (ft):
USCS:
Comments:
Sorting
0.66
Moment
Statistics
Fines (%):
Project Name:
Sample Name: TXGLO1-VC-23-092 #3
Analysis Date: 02-15-24
Analyzed By: SM
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
0.05
0.04
0.05
0.04
10
-1.00
2.00
0.12
0.10
0.17
0.14
14
-0.50
1.41
0.09
0.08
0.26
0.22
18
0.00
1.00
0.05
0.04
0.31
0.26
25
0.50
0.71
0.10
0.08
0.41
0.34
35
1.00
0.50
0.22
0.18
0.63
0.52
45
1.50
0.35
1.71
1.43
2.34
1.95
60
2.00
0.25
41.16
34.41
43.50
36.36
80
2.50
0.18
50.93
42.58
94.43
78.94
120
3.00
0.13
15.29
12.78
109.72
91.72
170
3.50
0.09
4.96
4.15
114.68
95.87
200
3.75
0.07
0.80
0.67
115.48
96.54
230
4.00
0.06
0.55
0.46
116.03
97.00
Munsell:
Mean Phi
2.17
Phi 5
3.40
Phi 16
2.70
Phi 25
2.45
Phi 50
2.16
Phi 75
1.83
Phi 84
1.70
119.62
Dry Weight (g):
3,128,474
Sieve Number
Shell Hash (%):
Easting (ft):
Northing (ft):
Skewness
-0.16
Kurtosis
9.02
-75.4 NAVD88
0.08
Depths and elevations based on measured values
#200 - 3.46
#230 - 3.00
13,469,393
Texas State Plane South
Granularmetric Report
0.03
Wash Weight (g):
Pan Retained (g):
Sieve Loss (%):
Organics (%):
Carbonates (%):
Wet - 2.5Y-5/1
Dry - 2.5Y-6/2
SP
Washed - 2.5Y-7/1
Coordinate System:
116.14
Phi 95
1.54
Mean mm
0.22
Sieve Size
(Phi)
Sieve Size
(Millimeters)
Grams
Retained
% Weight
Retained
Cum. Grams
Retained
C. % Weight
Retained
Elevation (ft):
USCS:
Comments:
Sorting
0.49
Moment
Statistics
Fines (%):
Project Name:
Sample Name: TXGLO1-VC-23-092 #4
Analysis Date: 02-15-24
Analyzed By: SM
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
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
2.78
0.44
PHI Sieve Sizes
Standard Sieve Sizes
Silt and Clay
#200 - 8.25
#230 - 6.58
0.1
3.55
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
SP-SM
2.8
Sample
Sample Information
0
18
-1
10
-0.5
14
-65.4
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:
02-15-24
SM
3,128,474
13,469,393
NAD 1983
NAVD88
TXGLO1-VC-23-092 #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
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
2.78
0.4
PHI Sieve Sizes
Standard Sieve Sizes
Silt and Clay
#200 - 5.99
#230 - 4.35
0.27
3.05
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
SP-SM
2.78
Sample
Sample Information
0
18
-1
10
-0.5
14
-70.1
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
80
90
100
0
Sand
Project Name:
Analysis Date:
Analyzed By:
Easting (X, ft):
Northing (Y, ft):
Horizontal Datum:
Vertical Datum:
02-15-24
SM
3,128,474
13,469,393
NAD 1983
NAVD88
TXGLO1-VC-23-092 #2
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
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
2.59
0.66
PHI Sieve Sizes
Standard Sieve Sizes
Silt and Clay
#200 - 16.34
#230 - 14.52
-0.59
4.67
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
2.77
Sample
Sample Information
0
18
-1
10
-0.5
14
-73.6
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):