9
NP
POORLY GRADED SAND
, brown, moist. (SP)
Grab Sample was terminated at a depth of 1 foot.
NP NP
1
GRAB
S-1
SAMPLE NUMBER
PI
PLASTICITY INDEX
MOISTURE CONTENT (%)
LL
LIQUID LIMIT
FIELD DATA
CLIENT:
PROJECT:
LOCATION:
NUMBER:
SHEET 1 of 1
DRILLING METHOD(S):
GROUNDWATER INFORMATION:
DATE(S) DRILLED: 2/23/2021
SURFACE ELEVATION: N/A
REMARKS:
N: BLOWS/FT
P: TONS/SQ FT
T: TONS/SQ FT
Qc: TONS/SQ FT
ATTERBERG
LIMITS
Grab Sample
Drilling operations were performed by RETL at GPS Coordinates
N° 26.06782 W° 97.16252
Location: Approximately 20 feet inland of water's edge.
Rock Engineering & Testing Lab. Inc
6817 Leopard Street
Corpus Christi, Texas 78409
Telephone: 361-883-4555
Fax: 361-883-4711
Mott MacDonald, LLC
Children's Beach Shoreline Protection
South Padre Island, Texas
G121096
SAMPLES
LABORATORY DATA
COMPRESSIVE
STRENGTH
(TONS/SQ FT)
MINUS NO. 200 SIEVE (%)
DRY DENSITY
POUNDS/CU.FT
DEPTH (FT)
SOIL SYMBOL
PLASTIC LIMIT
PL
LOG OF BORING GS-1
DESCRIPTION OF STRATUM
N - STANDARD PENETRATION TEST RESISTANCE
Qc - STATIC CONE PENETROMETER TEST INDEX
P - POCKET PENETROMETER RESISTANCE
Tv - TORVANE SHEAR STRENGTH TEST
LOG_OF_BORING G121096.GPJ ROCK_ETL.GDT 3/11/21
0
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100
100
10
1
0.1
0.01
0.001
Cu
PI
Cc
GRAIN SIZE DISTRIBUTION
GRAIN SIZE IN MILLIMETERS
COBBLES
GRAVEL
SAND
SILT OR CLAY
4
LL
PL
2.26
1.59
3.34
2.02
0.0
0.0
1.1
7.3
5.9
0.92
0.91
0.56
0.87
8.0
71.3
3.1
1.1
1.4
50
coarse
fine
coarse
medium
6
1620
1.5
4
92.0
28.7
95.8
91.6
92.7
200
PERCENT FINER BY WEIGHT
D100
D60
D30
0.142
0.022
0.134
0.163
0.156
D10
0.098
0.112
0.119
0.118
Depth
Classification
40
1
3/4
1/23/8 3
%Gravel %Sand
%Silt
%Clay
100
140
3
2
60
fine
U.S. SIEVE OPENING IN INCHES
U.S. SIEVE NUMBERS
HYDROMETER
B-1
B-1
GS-1
GS-2
GS-3
6
81014
30
2
0.425
9.5
9.5
9.5
0.221
0.056
0.177
0.398
0.238
POORLY GRADED SAND(SP)
POORLY GRADED SAND(SP)
POORLY GRADED SAND(SP)
Depth
3.5'
11.0'
0.0'
0.0'
0.0'
3.5'
11.0'
0.0'
0.0'
0.0'
B-1
B-1
GS-1
GS-2
GS-3
Specimen ID
Specimen ID
Project: Children's Beach Shoreline Protection
Location: South Padre Island, Texas
Number: G121096
Rock Engineering & Testing Lab. Inc
6817 Leopard Street
Corpus Christi, Texas 78409
Telephone: 361-883-4555
Fax: 361-883-4711
US_GRAIN_SIZE G121096.GPJ US_LAB.GDT 3/15/21
NO. BLOWS/FT.
STANDARD PEN.
TEST
DESCRIPTIVE
TERM
NO. BLOWS/FT.
STANDARD PEN.
TEST
DESCRIPTIVE
TERM
COARSE GRAINED SOILS
TERMS DESCRIBING CONSISTENCY OF SOIL
KEY TO SOIL CLASSIFICATION AND SYMBOLS
NAME
Very Loose
Loose
Medium
Dense
Very Dense
SYMBOLS FOR TEST DATA
0 - 4
4 - 10
10 - 30
30 - 50
over 50
Very Soft
Soft
Firm
Stiff
Very Stiff
Hard
< 2
2 - 4
4 - 8
8 - 15
15 - 30
over 30
FINE
GRAINED
SOILS
SAND
AND
SANDY
SOILS
SILTS
AND
CLAYS
LL > 50
MAJOR DIVISIONS
< 0.25
0.25 - 0.50
0.50 - 1.00
1.00 - 2.00
2.00 - 4.00
over 4.00
UNCONFINED
COMPRESSION
TONS PER SQ. FT.
FINE GRAINED SOILS
TERMS CHARACTERIZING SOIL
STRUCTURE
Silty Sands, Sand-Silt Mixtures
Inorganic Clays of low to medium plasticity,
Gravelly Clays, Sandy Clays, Silty Clays, Lean
Clays
Organic Silts and Organic Silt-Clays of low
plasticity
Inorganic Silts, Micaceous or Diatomaceous fine
Sandy or Silty soils, Elastic Silts
Inorganic Clays of high plasticity, Fat Clays
Organic Clays of medium to high plasticity,
Organic Silts