B.08 00_31_32-10_Mayport_OM_GDR_ALL_FY24_01Jun23.pdf

SECTION 00 31 32.10

Geotechnical Data Report

For

Maintenance Dredging

U.S. Naval Station Mayport

Duval County, Florida

Prepared by

Geosystems Branch

Engineering Division

Jacksonville District Corps of Engineers

May 2023

GEOTECHNICAL DATA REPORT

Table of Contents

1 SCOPE

2 CHARACTER OF MATERIALS

2.1 The Local Geology

2.2 Materials Encountered

3 DEFINITIONS

3.1 Definitions of Basic Terms

3.2 Current Logging Terms

3.3 Previous Logging Terms

3.4 Testing and Procedure Methods

4 GEOTECHNICAL DATA

4.1 Summary of Field Investigations

4.2 Summary of Index Testing Data

4.3 Boring Log Notes

4.4 Inspection of Recovered Materials

4.5 Boring Logs

4.6 Laboratory Testing Data

List of Tables

Table 1. Available Vibracore Data

Table 2: Index Testing Available for this Project

List of Plates

Plate 1. Vicinity Map

Plate 2. Location of Field Investigations

Plate 3. Location of Field Investigations

Plate 4. Location of Field Investigations

Plate 5. Location of Field Investigations

GEOTECHNICAL DATA REPORT

1 SCOPE

The information provided in this section encompasses the geotechnical field investigations available for this project. The investigations consist of vibracores. The associated vibracore logs and laboratory data are presented in paragraphs 4.5 and 4.6, respectively. A character of materials paragraph is included to provide a comprehensive description of the materials utilizing both recent and historical knowledge of the project area. Also included in this section are definitions of terms and boring log notes, which provide additional explanation of the vibracore logs and drilling techniques.

Items discussed in the character of materials paragraph may not appear explicitly on the boring logs. Based on historic knowledge of the project area, the character of materials paragraph includes items that supplement the data documented by the vibracore logs. When reviewing the boring logs, use all the data on the logs, including the materials description, legend, and blow counts. When evaluating the subsurface conditions, use all the data, including the character of materials paragraph and vibracore logs.

During the solicitation period, any questions that pertain to the information provided in this section should be addressed to the contract specialist identified in Block 9 of SF1442. After contract award, questions should be addressed to the appointed ACO/COR, which will coordinate with Geosystems Branch.

2 CHARACTER OF MATERIALS

The local geology of the project area is characterized by Pleistocene and Holocene age, marine terrace and beach ridge sediments, which were deposited on an irregular and undulating surface.

The thickness of these deposits can be up to 10 feet in the St. Johns River valley. The deposits are thickest below the ridges and in places where they overlie depressions. The deposits consist primarily of tan to yellow, medium to fine grained quartz sands, which are locally stained rusty brown or red due to iron oxide. Locally thin gray sandy clay beds, which contain occasional mollusk shells, are present, particularly near the coast.

Beneath these sediments, the Pliocene age Cypresshead Formation is encountered which typically consists of tan or light gray quartz sand, shell, and clayey sand/sandy clay. The Miocene age Charlton Member of the Coosawhatchie Formation underlies the Pliocene age sands in the project area. Contained within the Hawthorn Group, the Charlton Member includes limestone, dolostone, clay, and phosphates. The thickness of the Miocene age Charlton Member and the Pliocene age deposits ranges from as little as 25 feet to more than 130 feet in the project area.

The Miocene age Hawthorn Group consists mainly of dark gray and olive green sandy to silty clay, clayey sand, clay, sandy limestone, and dolostone. The lithology of the unit is distinguished by the presence of significant percentages of black phosphate sand, granules, and pebbles. The Hawthorn Group ranges in thickness from about 250 feet to as much as 500 feet in the project area.

2.1 THE LOCAL GEOLOGY

2.2 MATERIALS ENCOUNTERED

Naval Station Mayport and the surrounding vicinity has been dredged to the maximum authorized depth with allowable over-depth several times; the most recent dredging event occurred in 2023.

Therefore, all shoaled materials are newly deposited in the channel through normal coastal

GDR for Maintenance Dredging, U.S Naval Station Mayport SECTION 00 31 32.10 processes occurring in and around inlets. As such, all of the vibracore logs collected prior to the last dredging event are representative of the shoaled material, except for the vibracore logs from 2008 (VB-MPH08- series). Material above -50 ft MLLW on the 2008 boring logs does not represent shoaling; these borings were collected prior to deepening of the channel to -50 ft MLLW, and show the material still present beneath the overdepth and in the side slopes which can slough into the channel. Thus, those boring logs give important information for the dredging.

New vibracores were collected in 2022 to characterize the recently shoaled material.

The materials to be encountered within the dredging template consist of interbedded layers of clay, silt, silty sand, sand with silt, poorly graded sand, and shell and oyster shell ranging in size from sand to gravel, including both whole and broken shell fragments.

Construction debris, trash, coquina rock, hard and stiff clays have been encountered during previous dredge events; this type of material can be encountered in the over depth and below. In situ rock, if encountered, is not required to be dredged.

This is an active navigation channel. Trash and debris, such as ropes, anchors, aluminum cans, plastic bottles, etc. from navigation activities are present in the materials to be dredged.

3 DEFINITIONS

Definitions not explicitly indicated in the sections below are typical industry standard definitions from their respective ASTMs.

3.1 DEFINITIONS OF BASIC TERMS

Carbonate – Soil component that reacts with HCl of an indeterminate origin (shell, rock, etc.).

Fill – Material that has been placed by man, described with all soil characteristics.

Layer – Rock or soil with a thickness of 6 inches or less.

Lens – A geologic deposit of variable thickness, which disappears laterally in all directions and cannot be correlated to adjacent borings.

Rock – A naturally occurring substance composed of one or more minerals bound together. This geologic term includes a range of engineering properties: strength, hardness, permeability, weathering, and discontinuity. These properties are noted or can be inferred from the boring logs as blow counts, penetration rate, RQD, hardness, etc.

Shell – Material composed of predominantly (>75%) coarse-grained sand to gravel-sized whole or broken shell.

3.2 CURRENT LOGGING TERMS

Definition of terms used on boring logs dated since 2000:

Banded - 0.02' (6 mm) to 0.1' (3.0 cm).

Boulder-Sized – Particles greater than 12 inches in diameter.

Cavity - Voids greater than the diameter of the core.

Coarse Grained - Grain diameter greater than 0.079" (2 mm) for sedimentary rocks or 0.197" (5

mm) for igneous or metamorphic rocks.

Coarse Grained Sand-Sized – Less than 10 percent of fine and medium grained sand sizes are present.

Coarse Gravel-Sized – Particles greater than 3/4 of an inch but less than 3 inches in diameter.

Cobble-Sized – Particles greater than 3 inches but less than 12 inches in diameter.

Decomposed – Applicable to saprolitic rock; rock is essentially reduced to a soil with a relic rock texture; can be molded or crumbled by hand.

Dipping (Dip) - 20 to 45 degrees.

GDR for Maintenance Dredging, Discontinue – Particles were present within the unit above but are no longer present.

Fine Grained - Grain diameter between 0.004" (0.1 mm) and 0.016" (0.4 mm) for sedimentary rocks or 0.039" (1 mm) for igneous or metamorphic rocks.

Fine Grained Sand-Sized - Less than 10 percent of medium and coarse grained sand sizes are present.

Fine Gravel-Sized – Particles greater than No. 4 sieve but less than 3/4 of an inch in diameter.

Flat (Dip) - 0 to 20 degrees.

Fossiliferous – Greater than 40 percent fossils.

Hard (Hardness) - Difficult to scratch with a knife (cannot be pitted with a geology hammer, but can be chipped with moderate blows of the hammer).

Highly Fractured - Spacing 0.3' (9.1 cm) to 1' (30.5 cm).

Highly Weathered - Entire section is discolored; alteration is greater than 50%; some areas of slightly weathered rock are present; some minerals are leached away; retains only a fraction of its original strength (wet strength usually lower than dry strength).

Intact – Spacing greater than 6' (1.8 m).

Intensely Fractured - Spacing less than 0.3' (9.1 cm).

Massive – Over 3' (0.9 m) thick.

Medium-Bedded - 0.3' (9.1 cm) to 1' (30.5 cm) thick.

Medium Grained - Grain diameters between 0.016" (0.4 mm) to 0.079" (2 mm) for sedimentary rocks or 0.039" (1 mm) to 0.197" (5 mm) for igneous or metamorphic rocks.

Medium Grained Sand-Sized - Less than 10 percent of fine and coarse grained sand sizes are present.

Moderately Fractured - Spacing 1' (30.5 cm) to 3' (0.9 m).

Moderately Hard (Hardness) - Can be scratched easily with a knife, but cannot be scratched by a fingernail (can be pitted with moderate blows of a geology hammer).

Moderately Open (Fracture Aperture) - 0.020" (0.5 mm) to 0.098" (2.5 mm).

Moderately Weathered - Discoloration is evident; surface is pitted and altered, with alterations penetrating well below rock surfaces; 10% to 50% of the rock is altered; strength is noticeably less than unweathered rock.

Non-fossiliferous – No observed fossils.

Open (Fracture Aperture) - 0.098" (2.5 mm) to 0.394" (10 mm).

Pitted - Voids 0.039" (1mm) to 0.236" (6mm) in diameter.

Porous - Voids less than 0.039" (1mm) in diameter.

Slightly Fractured - Spacing 3' (0.9 m) to 6' (1.8 m).

Slightly Weathered - Superficial discoloration, alteration and/or discoloration along discontinuities;

less than 10% of the rock volume is altered; strength is essentially unaffected.

Soft (Hardness) - Can be scratched with a fingernail (cannot be crumbled between fingers, but can be easily pitted with light blows of a geology hammer).

Solid - Absence of voids.

Sparsely Fossiliferous – Less than 40 percent fossils.

Steeply Dipping (Dip) - 45 to 90 degrees.

Thick-Bedded – 1' (30.5 cm) to 3' (0.9 m) thick.

Thin-Bedded - 0.1' (3.0 cm) to 0.3' (9.1 cm) thick.

Thin Parting - Paper thin to 0.002' (0.6 mm).

Tight (Fracture Aperture) - 0.004" (0.1 mm) to 0.020" (0.5 mm).

Unweathered - No evidence of any mechanical or chemical alteration.

Very Fine Grained - Grain diameter less than 0.004" (0.1 mm); individual grains or crystals are too small to be seen with the naked eye.

Very Hard (Hardness) - Cannot be scratched with a knife (chips can be broken off only with heavy blows of a geology hammer).

Very Soft (Hardness) - Can be deformed by hand (has a rock-like character, but can be easily broken by hand).

Very Tight (Fracture Aperture) - less than 0.004" (0.1 mm).

Very Wide (Fracture Aperture) - 0.394" (10 mm) to 0.984" (25 mm).

Vuggy - Voids 0.236" (6mm) to the diameter of the core.

GDR for Maintenance Dredging,

3.3 PREVIOUS LOGGING TERMS

Definition of terms used on boring logs dated before 2000:

Dense – Equivalent to SPT N-value of 30 to 50.

Incompetent – Rock that disintegrates while coring; weak.

Indurated – Rock or soil hardened or consolidated by pressure or cementation. Very difficult to break by hand.

Poorly-Indurated – See semi-indurated.

Seam – Rock or soil with average thickness of 2 to 3 inches.

Semi-Indurated – Rock or soil with a lesser degree of hardening or consolidation by pressure or cementation. Crumbles with little effort by hand.

3.4 TESTING AND PROCEDURE METHODS

Test/Procedure Method

Abrasion Resistance of Large-Size Coarse Aggregate, Los Angeles Machine

ASTM C535

Abrasion Resistance of Small-Size Coarse Aggregate, Los Angeles Machine

ASTM C131

Air Content by the Pressure Method ASTM C231

Air Content by the Volumetric Method ASTM C173

Air-Entraining Admixtures for Concrete ASTM C233

Atterberg Limits, wet preparation method, test method a multipoint ASTM D4318

Bulk Specific Gravity of Bituminous Mixtures ASTM D2726

Capping Cylindrical Concrete Specimens ASTM C617

Carbonate Content ASTM D4373

Compaction: 4" Mold, Modified Proctor ASTM D1557

Compaction: 4" Mold, Standard Proctor ASTM D698

Compaction: 6" Mold, Modified Proctor ASTM D1557

Compaction: 6" Mold, Standard Proctor ASTM D698

Compressive Strength of Cast in Place Concrete Cylinders ASTM C873

Compressive Strength of Cylindrical Concrete Specimens (Set of 4) ASTM C39

Compressive Strength of Lightweight Concrete ASTM C495

Consolidation, each load of rebound increment with complete time ASTM D2435

Density and Water Content of Soil by Nuclear Methods (Minimum 4)

ASTM

D2922/D3017

Density of Bituminous Concrete in Place by Nuclear Methods (Minimum 4)

ASTM D2950

Density of Soil in Place by the Sand-Cone Method ASTM D1556

Direct Shear ASTM D3080

Drilled Cores and Sawed Beams of Concrete ASTM C42

Extraction of Bituminous Paving Mixtures ASTM D2172

Freezing and Thawing (up to 55 cycles) ASTM D5312

Grain size sieve Analysis ASTM D422

Hydrometer Analysis ASTM D422

Making and Curing Concrete Test Specimens in the Field (Set of 6) ASTM C31

Making and Curing Concrete Test Specimens in the Lab (Set of 4) ASTM C192

Marshall Resistance to Plastic Flow (Set of 3) ASTM D1559

Material Passing No. 200 Sieve ASTM D1140

Modulus of Elasticity ASTM D3148

Moisture Content ASTM D2216

GDR for Maintenance Dredging, Test/Procedure Method

Munsell Color Munsell Soil Color Charts

Organic Content, Test Method C ASTM D2974

Organic Impurities in Fine Aggregate ASTM C40

Permeability: Constant Head Permeability ASTM D2434

Permeability: Falling Head Permeability ASTM D5084

Petrographic Examination ASTM C295

Sampling Aggregate (Minimum 4 hours) ASTM D75

Sampling Freshly Mixed Concrete ASTM C172

Sedimentation Rate No ASTM

Sieve Analysis of Aggregate ASTM C136

Slump of Hydraulic-Cement Concrete ASTM C143

Soil Classification (Boring logs) ASTM D 2488

Specific Gravity and Absorption of Fine Aggregate ASTM C128

Specific Gravity for Rock ASTM C127

Specific Gravity for Soil ASTM D854

SPLITTING TENSILE STRENGTH ASTM D3967

Splitting Tensile Strength of Concrete Cylinders ASTM C496

Subsample Preparation ASTM D4220, Group B ASTM D4220, Sulfate Soundness ASTM C88

Total Evaporable Moisture Content ASTM C566

Triaxial Compression Test for Rock with Strain Gages or LVDTs (per confining pressure)

ASTM D2664

Triaxial compression: Consolidated Undrained (CU) Triaxial Compression Test R Test with Pore Pressure Measurements (per confining pressure)

ASTM D4767

Triaxial compression: Unconsolidated Undrained (UU) Triaxial Compression Test Q Test with Pore Pressure Measurements (per confining pressure)

ASTM D2850

Unbonded Caps for Compressive Strength ASTM C1231

Unconfined Compressive Strength for Rock Greater than 9,000 psi with Strain

ASTM D2938

Unconfined Compressive Strength for Rock up to 9,000 psi with Strain

ASTM D2938

Unconfined Compressive Strength for Soil ASTM D2166

Unit Weight and Absorption ASTM C127

Unit Weight of Aggregate ASTM C29 -

Visual Percent Shell No ASTM

Wetting and Drying ASTM D5313

GDR for Maintenance Dredging, 4 GEOTECHNICAL DATA

4.1 SUMMARY OF FIELD INVESTIGATIONS

The table below summarizes the field investigations data set available for this project.

Table 1. Available Vibracore Data

Boring Designation

State Plane, FL- East, NAD83 Project Feature

Available for Inspection

X Y

VB-MP2022-01 526302 2204221

Turning Basin

Yes

VB-MP2022-02 527484 2204396 Yes

VB-MP2022-03 527211 2203362 Yes

VB-MP2022-04 528615 2203917 Yes

VB-MP2022-05 529446 2204124

Entrance Channel

Yes

VB-MP2022-06 530523 2204752 Yes

VB-MP2022-07 531442 2204574 Yes

VB-MP2022-08 534164 2205763 Yes

VB-MP2022-09 534242 2205060 Yes

VB-MP2022-10 540527 2204358

Bar Cut 3

Yes

VB-MP2022-11 540710 2205142 Yes

VB-MP2022-12 543032 2204862 Yes

VB-MP2022-13 544336 2203899 Yes

VB-MP2022-14 544730 2204657 Yes

VB-MP2022-15 548397 2203444 Yes

VB-MP16-01 525757 2204607

Turning Basin

No

VB-MP16-02 527330 2204375 No

VB-MP16-03 526777 2204007 No

VB-MP16-04 526528 2203090 No

VB-MP16-05 527170 2203434 No

VB-MP16-06 529485 2204078

Entrance Channel

No

VB-MP16-07 531031 2204488 No

VB-MP16-08 542499 2204164

Bar Cut 3

No

VB-MP16-09 543449 2204070 No

VB-MP16-10 544313 2203961 No

VB-MP16-11 545542 2203779 No

VB-MP16-12 544268 2204667 No

VB-MPB2014M-1 531259 2204554

Entrance Channel

No

VB-MPB2014M-2 530528 2204435 No

VB-MPB2014M-3 529679 2204476 No

VB-MPB2014M-4 529109 2204021 No

VB-MPB2014M-5 533297 2205009 No

GDR for Maintenance Dredging, Boring Designation

State Plane, FL- East, NAD83 Project Feature

Available for Inspection

X Y

VB -MP13-1 525631 2203592

Turning Basin

No

VB-MP13-2 526278 2203678 No

VB-MP13-3 526398 2204432 No

VB-MP13-4 528806 2203965 Entrance Channel No

VB-MP13-5 535014 2205087

Bar Cut 3

No

VB-MP13-6 534612 2205642 No

VB-MP13-7 542969 2204844 No

VB-MP13-8 545468 2204540 No

VB-MP13-9 548323 2203510 No

VB-MPH08-01 525630 2204943

Turning Basin

No

VB-MPH08-02 525443 2204136 No

VB-MPH08-03 525105 2203200 No

VB-MPH08-06 526513 2204686 No

VB-MPH08-08 526009 2202959 No

VB-MPH08-13 527020 2202950 No

VB-MPH08-14 527840 2203920 No

VB-MPH08-15 528386 2203815

Entrance Channel

No

VB-MPH08-16 528809 2204311 No

VB-MPH08-18 529795 2204614 No

VB-MPH08-19 530353 2204305 No

VB-MPH08-20 530731 2204819 No

VB-MPH08-22 531676 2205049 No

VB-MPH08-24 532983 2204998 No

VB-MPH08-25 533761 2205012 No

VB-MPH08-26 532651 2205401

Bar Cut 3

No

VB-MPH08-38 535770 2205586 No

VB-MPH08-40 537692 2204768 No

VB-MPH08-41 539213 2205270 No

VB-MPH08-45 540244 2205165 No

VB-MPH08-49 541181 2205080 No

VB-MPH08-51 541612 2204235 No

VB-MPH08-53 542205 2204909 No

VB-MPH08-57 543175 2204834 No

VB-MPH08-69 546162 2204453 No

VB-MPH08-71 546576 2203739 No

VB-MPH08-73 547216 2204329 No

VB-MPH08-81 549173 2204040 No

VB-MPH08-83 549557 2203268 No

GDR for Maintenance Dredging,

* Coordinates presented correspond to the project coordinate system and datum

4.2 SUMMARY OF INDEX TESTING DATA

The table below summarizes the index testing available for this project.

Table 2: Index Testing Available for this Project

Boring Designation

Sample Number

USCS LL PL PI

Org

Visual Shell

CO3

Wn GS

Munsell Color

VB-MP2022-01

1 MH 15 10YR 3/1

2 MH 10YR 3/1

3 SM 0 10YR 4/1

4 LS 0 10YR 6/1

VB-MP2022-02

1 MH 140 47 93 14 10YR 3/1

2 MH 10YR 3/1

3 SP-SM 0 10YR 3/1

4 SP 0 10YR 3/1

5 SC 0 10YR 6/1

VB-MP2022-03

1 MH 14 10YR 3/1

2 MH 10YR 3/1

3 MH 10YR 3/1

4 MH 0 10YR 3/1

5 SP-SM 0 10YR 3/1

VB-MP2022-04

1 MH 12 10YR 3/1

2 MH 10YR 3/1

3 SP-SM 0 10YR 4/1

4 SP-SM 0 10YR 4/1

VB-MP2022-05

1 MH 158 48 110 11 10YR 3/1

2 MH 10YR 3/1

3 MH 10YR 3/1

VB-MP2022-06

1 SP 1 0 10YR 5/1

2 SP-SC 0 10YR 5/1

3 SP-SC 10YR 5/1

4 SC 0 10YR 5/1

VB-MP2022-07

1 MH 94 30 64 6 10YR 5/1

2 SC 0 10YR 5/1

3 SP 20 10YR 5/1

VB-MP2022-08

1 SHELL 1 40 10YR 5/1

2 SP 30 10YR 5/1

3 SM 0 5Y 3/2

4 SP-SM 0 5Y 3/2

GDR for Maintenance Dredging, Sample Number

USCS LL PL PI

Org

Visual Shell

CO3

Wn GS

Munsell Color

VB-MP2022-09

1 SP 15 10YR 5/1

2 SP-SM 5 10YR 5/1

3 SM 0 5Y 3/2

VB-MP2022-10

1 SP 5 10YR 5/1

2 SM 10YR 3/1

3 ML 10YR 3/1

4 SP-SM 0 10YR 5/1

5 SP-SM 10YR 5/1

6 SM 10YR 4/1

VB-MP2022-11

1 SP 1 0 10YR 5/1

2 SC 0 10YR 4/1

3 SC 0 10YR 3/1

4 SP-SM 0 10YR 4/1

VB-MP2022-12

1 SP 1 0 10YR 4/1

2 SP-SM 0 10YR 4/1

3 SP-SM 0 10YR 4/1

4 SM 0 10YR 4/1

5 SP 0 10YR 4/1

6 SP 0 10YR 4/1

VB-MP2022-13

1 MH 142 44 98 10 10YR 3/1

2 MH 10YR 3/1

VB-MP2022-14

1 SP-SM 1 0 10YR 3/1

2 SM 10YR 3/1

3 SP-SM 0 10YR 3/1

4 SP 0 10YR 4/1

VB-MP2022-15

1 ML 5 10YR 3/1

2 SM 10YR 3/1

VB-MP16-01

1 MH 0.1 237 N 3/1

2 MH 0 205 N 3/1

3 MH 0 167 N 3/1

4 MH 0 194 N 3/1

5 SM 0 22.4 5Y 4/3

6 SP-SM 0 22.9 5Y 4/3

VB-MP16-02

1 MH 0 207 N 3/1

2 MH 0 245 N 3/1

3 MH 0 188 N 3/1

4 SP-SM 0 27.1 5Y 4/3

GDR for Maintenance Dredging, Sample Number

USCS LL PL PI

Org

Visual Shell

CO3

Wn GS

Munsell Color

VB-MP16-03

1 MH 0 211 N 3/1

2 MH 0 259 N 3/1

3 MH 0 172 N 3/1

4 SM 0 21.6 N 3/1

VB-MP16-04

1 MH 0 318 N 3/1

2 MH 0 325 N 3/1

3 MH 0 286 N 3/1

4 SM 0.4 24.5 5Y 4/3

VB-MP16-05

1 MH 0 280 N 3/1

2 OH 0.1 214 N 3/1

3 SM 0 21.7 5Y 4/3

4 SP-SM 0 22.7 5Y 4/3

VB-MP16-06

1 MH 0 195 N 3/1

2 OH 0 119 N 3/1

3 MH 0 82.6 N 3/1

4 MH 0 69.5 N 3/1

VB-MP16-07

1 SP 6.2 49 10YR 3/1

2 SP 3.4 20.1 10YR 5/1

VB-MP16-08

1 MH 0 229 N 3/1

2 MH 0 229 N 3/1

3 MH 0 159 N 3/1

4 MH 0 146 N 3/1

VB-MP16-09

1 MH 0 179 N 3/1

2 MH 0 177 N 3/1

3 SM 0 82.9 N 3/1

4 MH 0 792 N 3/1

VB-MP16-10

1 MH 0 198 N 3/1

2 MH 0 241 N 3/1

3 MH 0 104 N 3/1

4 MH 0 145 N 3/1

VB-MP16-11

1 MH 0 261 N 3/1

2 SM 0.1 76.3 5GY 3/1

3 SM 2.1 28 5GY 4/1

4 MH 1.4 105 10Y 4/1

VB-MP16-12

1 SM 0 59.8 N 3/1

2 MH 0 103 N 3/1

3 MH 0 112 N 3/1

GDR for Maintenance Dredging, Sample Number

USCS LL PL PI

Org

Visual Shell

CO3

Wn GS

Munsell Color

VB-MP16-12 4 SM 0 36 N 3/1

VB-MPB2014M-02

1 SP-SM 0 5Y 4/2

2 SM 0 N 2.5/

3 SM 0 N 4/

VB-MPB2014M-03

1 SP-SM 1 5Y 5/2

2 SP-SM 1 5Y 5/2

3 SP-SM 1 N 3/

VB-MPB2014M-05

1 SP 54 5Y 6/2

2 SP-SM 1 5Y 4/2

3 SP-SM 0 5Y 4/2

VB-MP13-1

1 MH 0 N 4/

2 MH 0 N 4/

3 SP-SM 52 2.5Y 6/1

VB-MP13-2

1 MH 0 N 4/

2 SP-SM 8 10YR 5/1

3 MH 0 N 4/

4 SM 0 2.5Y 4/3

VB-MP13-3

1 MH 0 N 4/

2 MH 0 N 4/

VB-MP13-4

1 MH 0 N 4/

2 SP 0 2.5Y 3/1

VB-MP13-5

1 SP 62 2.5Y 5/2

2 SP-SM 5 N 5/

VB-MP13-6

1 SP 29 10YR 6/1

2 CH 0 10YR 4/1

VB-MP13-7

1 SM 7 5Y 5/2

2 SP 15 5Y 7/2

VB-MP13-8

1 SM 3 5Y 4/3

2 SM 5 5Y 4/1

VB-MP13-9

1 ML 4 N 4/1

2 SM 1 N 4/1

VB-MPH08-1

1 SM 5 2.5Y 5/2

2 SM 0 2.5Y 4/2

3 SP 0 2.5Y 3/2

4 SM 0 2.5Y 3/2

VB-MPH08-2

1 ML 70 20 50 5 2.4 2.5Y 2.5/1

2 SM 0 2.5Y 6/2

GDR for Maintenance Dredging, Sample Number

USCS LL PL PI

Org

Visual Shell

CO3

Wn GS

Munsell Color

VB-MPH08-2

3 SM 0 2.5Y 6/2

4 SP-SM 0 2.5Y 4/2

5 SP-SM 0 2.5Y 4/2

VB-MPH08-3

1 ML 50 2.5Y 2.5/1

2 SP-SM 75 2.5Y 6/1

3 SP-SM 5 2.5Y 6/1

4 SM 5 2.5Y 5/2

5 SP-SM 0 2.5Y 5/2

VB-MPH08-6

1 CH 65 21 44 0 2.8 5Y 3/2

2 SM 0 5Y 4/2

3 SP 0 5Y 4/2

VB-MPH08-8

1 CH 0 5Y 3/2

2 CH 5 5Y 3/2

3 SP-SM 25 2.5Y 8/4

4 SP-SM 5 2.5Y 8/4

VB-MPH08-13

1 SM 5 2.5Y 7/3

2 SP-SM 0 2.5Y 3/2

3 SP 5 2.5Y 3/2

4 SP 0 2.5Y 3/2

VB-MPH08-14

1 CH 0 5Y 3/2

2 SP 80 2.5Y 8/2

3 SP-SM 0 2.5Y 6/6

4 SP 0 2.5Y 3/2

5 SP 0 2.5Y 3/2

VB-MPH08-15

1 CH 59 16 43 0 2.2 5Y 3/2

2 SM 10 2.5Y 7/3

3 SP 0 2.5Y 6/3

4 SP 0 5Y 4/2

5 SP 0 5Y 4/2

VB-MPH08-16

1 SM 0 5Y 4/3

2 SM 0 5Y 4/3

3 SP 90 2.7 5Y 6/2

4 SP 90 5Y 8/1

5 SP 0 5Y 8/2

VB-MPH08-18

1 SP-SM 0 2.1 5Y 8/1

2 SP 0 2.3 2.6 5Y 8/1

3 SP 0 1.4 5Y 8/1

GDR for Maintenance Dredging, Sample Number

USCS LL PL PI

Org

Visual Shell

CO3

Wn GS

Munsell Color

VB-MPH08-18

4 SP 0 1.8 2.6 5Y 8/1

5 SP 0 5Y 8/1

VB-MPH08-19

1 CL 0 5.9 2.6 5Y 4/2

2 SP 0 1.1 5Y 8/1

3 SP 0 0.9 2.5 5Y 8/1

4 SP 0 2.6 5Y 8/1

5 SP 10 5Y 8/1

VB-MPH08-20

1 CH 0 5Y 3/2

2 CH 60 31 29 0 2.4 5Y 3/2

VB-MPH08-22

1 SM 0 1.6 2.6 2.5Y 8/1

2 SM 0 1.1 2.5Y 8/1

3 SM 0 2.5Y 8/1

VB-MPH08-24

1 SP-SM 5 2.5Y 3/2

2 SM 0 3 2.5 5Y 3/2

3 SP-SM 0 5Y 3/2

VB-MPH08-25

1 SP 50 30.7 2.7 5Y 8/2

2 SP 0 3.1 5Y 8/1

3 SP-SM 0 5Y 4/2

VB-MPH08-26

1 SP-SM 5 2 5Y 4/2

2 SP-SM 0 5Y 4/2

3 SP-SM 5 5Y 4/2

VB-MPH08-38

1 SM 15 8 5Y 7/1

2 SP-SM 0 3 2.4 5Y 4/3

3 SP-SM 0 5 5Y 4/3

VB-MPH08-39

1 SP-SM 0 5Y 4/3

2 SP-SM 0 5Y 4/3

3 SP-SM 0 5Y 4/3

VB-MPH08-40

1 CH 66 28 38 10 2.3 5Y 3/1

2 CH 5 5Y 3/1

VB-MPH08-41

1 CH 57 29 28 0 2.2 5Y 3/2

2 SM 0 5Y 8/1

3 SP 0 5Y 8/1

VB-MPH08-45

1 SM 5 5Y 5/2

2 SP-SM 0 5Y 8/1

VB-MPH08-45

3 SP-SM 0 5Y 8/1

4 SM 0 2.5YR 6/3

VB-MPH08-49 1 SP 0 3.3 2.7 5Y 8/1

GDR for Maintenance Dredging, Sample Number

USCS LL PL PI

Org

Visual Shell

CO3

Wn GS

Munsell Color

VB-MPH08-49

2 SP 0 5Y 8/1

3 SM 0 5Y 3/2

4 SM 0 5Y 3/2

5 SM 0 10Y 4/1

VB-MPH08-51

1 SM 5 5Y 5/1

2 SM 15 5Y 5/1

3 SP-SM 5 2.6 5Y 5/1

4 ML 0 5Y 7/2

VB-MPH08-53

1 SP 0 2.6 5Y 7/1

2 SM 5 5Y 5/2

3 SP 0 5Y 5/2

4 SM 0 2.1 5Y 5/2

5 SP-SM 0 5Y 8/1

VB-MPH08-57

1 SP 0 3.1 5Y 7/1

2 SM 20 5Y 4/2

4 SM 5 5Y 4/2

3 SM 5 5Y 4/2

VB-MPH08-69

1 SM 0 5Y 6/2

2 CL 0 5Y 5/1

3 SM 15 5Y 5/1

VB-MPH08-71

1 CH 0 5Y 2.5/1

2 SM 15 5Y 4/1

3 CL 10 5Y 4/1

VB-MPH08-73

1 CH 34 10 24 0 2.5 5Y 2.5/1

2 SP-SM 5 5Y 3/2

3 CH 0 5Y 2.5/1

VB-MPH08-81

1 SM 10 5Y 3/2

2 SM 5 5Y 3/2

3 CH 0 5Y 3/1

VB-MPH08-83

1 SM 10 5Y 3/1

2 CL 5 5Y 3/1

USCS: Unified Soil Classification System; LL: liquid limit; PL: plastic limit; PI: Plastic Index; Org %: Organic Content;

CO3%: Carbonate Content; Gs: specific gravity, Wn: Moisture Content

4.3 BORING LOG NOTES

All vibracore borings were sampled using an Alpine style, pneumatic vertical hammer, vibracore drilling apparatus having a continuous 20-foot by 3 or 3 1/2-inch core barrel with clear plastic core liner until refusal was encountered. Refusal is defined as no additional penetration of the vibracore with one minutes of additional effort applied to penetrate through the resistant layer at maximum vibration. The vibracore apparatus is equipped with a graph-type depth of penetration recorder.

4.4 INSPECTION OF RECOVERED MATERIALS

The material recovered from borings marked with a checkmark or yes in Table 1 is available for inspection by prospective offerors at the Corps of Engineers District warehouse. The address and hours of operation for the warehouse are listed below:

Address: 3077 Talleyrand Avenue

Jacksonville, 32206 Florida

Hours: 7:00 am to 2:30 pm

The recovered materials will be available for inspection during normal business hours as noted above, except Federal holidays, during the entire bid period. Prospective offerors shall notify the project geologist at 904-232-1406 or Chief, Geology and Explorations Section at 904-232-1617 at least four (4) working days before the visit.

The following information will be required to schedule the visit:

(1) Project title;

(2) Specific borings or entire set which are to be viewed;

(3) Date, time, and duration of the visit;

(4) Name of the person(s) and company to view the borings; and

(5) Point of contact and phone number regarding the visit.

Prospective offerors shall record their material examination visit in a record book maintained at the inspection site.

It is strongly suggested that prospective offerors view the samples before submitting their bid.

Plate 5

Plate 4

Plate 3

Plate 2

Dwn by:

Ckd by:

Dated:

DEPARTMENT OF THE ARMY

JACKSONVILLE DISTRICT,

CORPS OF ENGINEERS

JACKSONVILLE, FLORIDA

PLATE NO.

Dsn by:

U.S. Naval Station Mayport O&M

Dredging 50 Foot Project

GEOTECHNICAL DRAWINGS

NOT FOR CONSTRUCTION

APS

APS

APS

6/1/2023

Mayport Turning Basin and

Entrance Channel

0 0.8 1.6 2.4 3.20.4

MilesLegend Channel Midline Channel Outline

GDR for Maintenance Dredging, !O

!O

!O

!O !O

!O !O

!O

!O

!O

!O

!O !O

!O

!O

!O!O

!O

!O

!O

!O

!O

!O

!O

!O

!O

!O

!O

!O

!O

!O

VB-MP2022-06

VB-MP2022-04

VB-MP2022-03

VB-MP2022-02

VB-MP2022-01

VB-MP2022-05

VB-MP16-05

VB-MP16-04

VB-MP16-03

VB-MP16-01

VB-MP16-06

VB-MP16-02

VB-MPB2014M-3

VB-MPB2014M-2

VB-MPB2014M-4

VB-MP13-3

VB-MP13-2

VB-MP13-1

VB-MP13-4

VB-MPH08-6

VB-MPH08-3

VB-MPH08-2

VB-MPH08-1

VB-MPH08-16

VB-MPH08-14

VB-MPH08-13

VB-MPH08-8

VB-MPH08-20

VB-MPH08-19

VB-MPH08-18

VB-MPH08-15

Dwn by:

Ckd by:

Dated:

DEPARTMENT OF THE ARMY

JACKSONVILLE DISTRICT,

CORPS OF ENGINEERS

JACKSONVILLE, FLORIDA

PLATE NO.

Dsn by:

U.S. Naval Station Mayport O&M

Dredging 50 Foot Project

GEOTECHNICAL DRAWINGS

NOT FOR CONSTRUCTION

APS

APS

APS

5/15/2023

Mayport Turning Basin and

Entrance Channel

0 0.1 0.2 0.3 0.40.05

Miles

Legend Channel Midline Channel Outline

!O Vibracores

GDR for Maintenance Dredging, !O

!O !O !O

!O

!O

!O

!O

!O

!O

!O !O!O

!O

!O

!O

!O

!O

!O

!O

!O

VB-MPB2014M-3VB-MPH08-18

VB-MP2022-09

VB-MP2022-08

VB-MP2022-07

VB-MP2022-06

VB-MP16-07

VB-MPB2014M-5

VB-MPB2014M-2

VB-MPB2014M-1

VB-MP13-6

VB-MP13-5

VB-MPH08-38

VB-MPH08-33

VB-MPH08-26

VB-MPH08-25

VB-MPH08-24

VB-MPH08-22

VB-MPH08-32

VB-MPH08-20

VB-MPH08-19

Dwn by:

Ckd by:

Dated:

DEPARTMENT OF THE ARMY

JACKSONVILLE DISTRICT,

CORPS OF ENGINEERS

JACKSONVILLE, FLORIDA

PLATE NO.

Dsn by:

U.S. Naval Station Mayport O&M

Dredging 50 Foot Project

GEOTECHNICAL DRAWINGS

NOT FOR CONSTRUCTION

APS

APS

APS

5/15/2023

Mayport Turning Basin and

Entrance Channel

0 0.1 0.2 0.3 0.40.05

Miles

Legend Channel Midline Channel Outline

!O Vibracores

GDR for Maintenance Dredging, !O

!O

!O

!O !O!O

!O !O

!O

!O

!O

!O

!O

!O

VB-MP2022-12VB-MP2022-11

VB-MP2022-10

VB-MP16-12

VB-MP16-10

VB-MP16-09VB-MP16-08

VB-MP13-7

VB-MPH08-53

VB-MPH08-51

VB-MPH08-49

VB-MPH08-45VB-MPH08-41

VB-MPH08-40

VB-MPH08-57

Dwn by:

Ckd by:

Dated:

DEPARTMENT OF THE ARMY

JACKSONVILLE DISTRICT,

CORPS OF ENGINEERS

JACKSONVILLE, FLORIDA

PLATE NO.

Dsn by:

U.S. Naval Station Mayport O&M

Dredging 50 Foot Project

GEOTECHNICAL DRAWINGS

NOT FOR CONSTRUCTION

APS

APS

APS

5/15/2023

Mayport Turning Basin and

Entrance Channel

0 0.1 0.2 0.3 0.40.05

Miles

Legend Channel Midline Channel Outline

!O Vibracores

GDR for Maintenance Dredging, !O

!O

!O

!O

!O

!O

!O

!O !O

!O

!O

!O

!O

!O

!OVB-MP2022-15

VB-MP2022-14

VB-MP2022-13

VB-MP2022-12

VB-MP16-12

VB-MP16-11

VB-MP16-10

VB-MP16-09

VB-MP13-9

VB-MP13-8

VB-MP13-7

VB-MPH08-83

VB-MPH08-81

VB-MPH08-73

VB-MPH08-71

VB-MPH08-69

VB-MPH08-53

VB-MPH08-57

Dwn by:

Ckd by:

Dated:

DEPARTMENT OF THE ARMY

JACKSONVILLE DISTRICT,

CORPS OF ENGINEERS

JACKSONVILLE, FLORIDA

PLATE NO.

Dsn by:

U.S. Naval Station Mayport O&M

Dredging 50 Foot Project

GEOTECHNICAL DRAWINGS

NOT FOR CONSTRUCTION

APS

APS

APS

5/15/2023

Mayport Turning Basin and

Entrance Channel

0 0.1 0.2 0.3 0.40.05

Miles

Legend Channel Midline Channel Outline

!O Vibracores

GDR for Maintenance Dredging,

4.5 BORING LOGS

Applicable boring logs are presented on the following pages.

The borings presented in this section are available historic borings within the project area. Most of the materials within the project template presented on the boring logs have been removed by previous dredging events with subsequent shoaling of similar materials. The current elevations of the materials at these locations are shown on the contract drawings.

While the Government’s borings are representative of subsurface conditions at their respective locations and vertical reaches, local variations in the characteristics of the subsurface materials of this region are to be expected. Accordingly, prospective offerors shall form their own conclusions from the examination of the recovered materials prior to submission of their offer.

GDR for Maintenance Dredging, -46.4

-47.3

-48.8

-50.0 -50.3

-51.3

-54.7 -55.0

Vibracore

Vibracore

Vibracore

Vibracore

Vibracore

Vibracore

Vibracore

Vibracore

NR

SILT, inorganic-H, mostly silt, trace fine-grained sand-sized quartz, 10YR 3/1 very dark gray (MH)

SAND, silty, mostly fine to medium-grained sand-sized quartz, few silt, 10YR 4/1 dark gray (SM)

LIMESTONE, 10YR 6/1 gray

-46.4-46.4

-50.0

-54.7

0.0

3.6

8.3

0.0

-55.0 8.6

RQD

OR

UD

CLASSIFICATION OF MATERIALS %

REC.

LE

G

E N

D

B O

X O

R S

A M

P

LE

REMARKS

N -V

A

LU

E

B

LO

W S

FT

DEPTH

(ft)

ELEV.

(ft)

INCLINED

DIVISION INSTALLATION

VERTICAL

14. ELEVATION GROUND WATER

HORIZONTAL

1. PROJECT

15. DATE BORING

7. DEPTH DRILLED INTO ROCK

2. BORING DESIGNATION

STARTED

3. DRILLING AGENCY

13. TOTAL NUMBER CORE BOXES

Boring Designation

17. TOTAL RECOVERY FOR BORING

10. COORDINATE SYSTEM/DATUM

MANUAL HAMMER

DRILLING LOG

CONTRACTOR FILE NO.

11. MANUFACTURER'S DESIGNATION OF DRILL

COMPLETED

18. SIGNATURE AND TITLE OF INSPECTOR

VERTICAL

OF

VB-MP2022-01

UNDISTURBED (UD)

16. ELEVATION TOP OF BORING

BEARING

8. TOTAL DEPTH OF BORING

SHEETS

5. DIRECTION OF BORING

DISTURBED

DEG. FROM

VERTICAL

SHEET

12. TOTAL SAMPLES

9. SIZE AND TYPE OF BIT

6. THICKNESS OF OVERBURDEN

VB-MP2022-01

4. NAME OF DRILLER

AUTO HAMMERLOCATION COORDINATES

NAD83

See Remarks

State Plane, FLE (U.S. Ft.)

X = 526,302 Y = 2,204,221

MLLW

N/A

CSI/TSF JV

16.6 Ft.

Jacksonville District

06-30-22

South Atlantic

N/A

Brian Simmons (Amdrill)

U.S. Naval Station Mayport, 2022

06-30-22

-46.4 Ft.

52 %

Rashmi Kola, Geotechnical Engineer

SAJ FORM 1836

JUN 02

(Continued)

GDR for Maintenance Dredging, -63.0

VibracoreNR

BORING TERMINATED IN REFUSAL

NOTES:

1. USACE Jacksonville is the custodian for these original files.

2. Soils are field visually classified in accordance with the Unified Soils Classification System.

3. Laboratory Testing Results

SAMPLE SAMPLE LABORATORY

ID DEPTH CLASSIFICATION

1 0.9/1.1 MH*

2 2.4/2.6 MH*

3 3.9/4.1 SM*

4 4.9/5.1 LIMESTONE*

*Lab visual classification based on gradation curve

Abbreviations:

-63.0 16.6

INSTALLATION

LOCATION COORDINATES

COORDINATE SYSTEM/DATUMPROJECT HORIZONTAL

OFDRILLING LOG (Cont. Sheet)

ELEVATION TOP OF BORING

Boring Designation

U.S. Naval Station Mayport, 2022

-46.4 Ft.

State Plane, FLE (U.S. Ft.)

Jacksonville District

VERTICAL

SHEETS

SHEET

X = 526,302 Y = 2,204,221

VB-MP2022-01

NAD83 MLLW

RQD

OR

UD

CLASSIFICATION OF MATERIALS %

REC.

LE

G

E N

D

B O

X O

R S

A M

P

LE

REMARKS

N -V

A

LU

E

B

LO

W S

FT

DEPTH

(ft)

ELEV.

(ft)

SAJ FORM 1836-A

JUN 02

GDR for Maintenance Dredging, -48.3-48.3

-50.8

-51.8

-56.8

-60.3

0.0

2.5

3.5

8.5

12.0

0.0 -48.3

-49.2

-50.2

-50.8

-51.2

-51.8

-52.2

-55.3

-56.8

-57.2

-60.3

Vibracore

Vibracore

Vibracore

Vibracore

Vibracore

Vibracore

Vibracore

Vibracore

Vibracore

Vibracore

Vibracore

SILT, inorganic-H, mostly silt, trace fine-grained sand-sized quartz, 10YR 3/1 very dark gray (MH)

SAND, poorly-graded with silt, mostly fine to medium-grained sand-sized quartz, few silt, 10YR 3/1 very dark gray (SP-SM)

SAND, poorly-graded, mostly fine to medium-grained sand-sized quartz, trace silt, 10YR 3/1 very dark gray (SP)

From El. -55.3 to -56.8 Ft., mostly fine to coarse-grained sand-sized quartz, trace silt, cobble sized limestone at 7.5', 10YR 5/1 gray

SAND, clayey, mostly fine to medium-grained sand-sized quartz, little clay, 10YR 6/1 gray (SC)

LIMESTONE, mostly highly weathered soft fine-grained sand-sized limestone, some carbonated clay, 10YR 6/1 gray

RQD

OR

UD

CLASSIFICATION OF MATERIALS %

REC.

LE

G

E N

D

B O

X O

R S

A M

P

LE

REMARKS

N -V

A

LU

E

B

LO

W S

FT

DEPTH

(ft)

ELEV.

(ft)

INCLINED

DIVISION INSTALLATION

VERTICAL

14. ELEVATION GROUND WATER

HORIZONTAL

1. PROJECT

15. DATE BORING

7. DEPTH DRILLED INTO ROCK

2. BORING DESIGNATION

STARTED

3. DRILLING AGENCY

13. TOTAL NUMBER CORE BOXES

Boring Designation

17. TOTAL RECOVERY FOR BORING

10. COORDINATE SYSTEM/DATUM

MANUAL HAMMER

DRILLING LOG

CONTRACTOR FILE NO.

11. MANUFACTURER'S DESIGNATION OF DRILL

COMPLETED

18. SIGNATURE AND TITLE OF INSPECTOR

VERTICAL

OF

VB-MP2022-02

UNDISTURBED (UD)

16. ELEVATION TOP OF BORING

BEARING

8. TOTAL DEPTH OF BORING

SHEETS

5. DIRECTION OF BORING

DISTURBED

DEG. FROM

VERTICAL

SHEET

12. TOTAL SAMPLES

9. SIZE AND TYPE OF BIT

6. THICKNESS OF OVERBURDEN

VB-MP2022-02

4. NAME OF DRILLER

AUTO HAMMERLOCATION COORDINATES

NAD83

See Remarks

State Plane, FLE (U.S. Ft.)

X = 527,484 Y = 2,204,396

MLLW

N/A

CSI/TSF JV

20.0 Ft.

Jacksonville District

06-30-22

South Atlantic

N/A

Brian Simmons (Amdrill)

U.S. Naval Station Mayport, 2022

06-30-22

-48.3 Ft.

85 %

Rashmi Kola, Geotechnical Engineer

SAJ FORM 1836

JUN 02

(Continued)

GDR for Maintenance Dredging, Abbreviations:

-68.3 20.0

-65.3 17.0 -65.3

-68.3

Vibracore

Vibracore

NR

NOTES:

1. USACE Jacksonville is the custodian for these original files.

2. Soils are field visually classified in accordance with the Unified Soils Classification System.

3. Laboratory Testing Results

SAMPLE SAMPLE LABORATORY

ID DEPTH CLASSIFICATION

1 0.9/1.1 MH

2 1.9/2.1 MH*

3 2.9/3.1 SP-SM*

4 3.9/4.1 SP*

5 8.9/9.1 SC*

*Lab visual classification based on gradation curve

SAMPLE LABORATORY

DEPTH SOIL TESTING RESULT UNIT

1.0 Atterberg (PI) 93

INSTALLATION

LOCATION COORDINATES

COORDINATE SYSTEM/DATUMPROJECT HORIZONTAL

OFDRILLING LOG (Cont. Sheet)

ELEVATION TOP OF BORING

Boring Designation

U.S. Naval Station Mayport, 2022

-48.3 Ft.

State Plane, FLE (U.S. Ft.)

Jacksonville District

VERTICAL

SHEETS

SHEET

X = 527,484 Y = 2,204,396

VB-MP2022-02

NAD83 MLLW

RQD

OR

UD

CLASSIFICATION OF MATERIALS %

REC.

LE

G

E N

D

B O

X O

R S

A M

P

LE

REMARKS

N -V

A

LU

E

B

LO

W S

FT

DEPTH

(ft)

ELEV.

(ft)

SAJ FORM 1836-A

JUN 02

GDR for Maintenance Dredging, -46.8

-47.7

-48.7

-49.7

-50.7

-51.3

-51.7

-52.8

-58.3

Vibracore

Vibracore

Vibracore

Vibracore

Vibracore

Vibracore

Vibracore

Vibracore

Vibracore

SILT, inorganic-H, mostly silt, trace fine-grained sand-sized quartz, 10YR 3/1 very dark gray (MH)

SAND, poorly-graded with silt, mostly fine to medium-grained sand-sized quartz, few silt, 10YR 3/1 very dark gray (SP-SM)

From El. -52.8 to -58.3 Ft., mostly fine to medium-grained sand-sized quartz, few silt, 5Y 3/2 dark olive gray

SAND, clayey, mostly fine to coarse-grained sand-sized quartz, some clay, 10YR 5/1 gray

(SC)

-46.8-46.8

-51.3

-58.3

0.0

4.5

11.5

0.0

RQD

OR

UD

CLASSIFICATION OF MATERIALS %

REC.

LE

G

E N

D

B O

X O

R S

A M

P

LE

REMARKS

N -V

A

LU

E

B

LO

W S

FT

DEPTH

(ft)

ELEV.

(ft)

INCLINED

DIVISION INSTALLATION

VERTICAL

14. ELEVATION GROUND WATER

HORIZONTAL

1. PROJECT

15. DATE BORING

7. DEPTH DRILLED INTO ROCK

2. BORING DESIGNATION

STARTED

3. DRILLING AGENCY

13. TOTAL NUMBER CORE BOXES

Boring Designation

17. TOTAL RECOVERY FOR BORING

10. COORDINATE SYSTEM/DATUM

MANUAL HAMMER

DRILLING LOG

CONTRACTOR FILE NO.

11. MANUFACTURER'S DESIGNATION OF DRILL

COMPLETED

18. SIGNATURE AND TITLE OF INSPECTOR

VERTICAL

OF

VB-MP2022-03

UNDISTURBED (UD)

16. ELEVATION TOP OF BORING

BEARING

8. TOTAL DEPTH OF BORING

SHEETS

5. DIRECTION OF BORING

DISTURBED

DEG. FROM

VERTICAL

SHEET

12. TOTAL SAMPLES

9. SIZE AND TYPE OF BIT

6. THICKNESS OF OVERBURDEN

VB-MP2022-03

4. NAME OF DRILLER

AUTO HAMMERLOCATION COORDINATES

NAD83

See Remarks

State Plane, FLE (U.S. Ft.)

X = 527,211 Y = 2,203,362

MLLW

N/A

CSI/TSF JV

20.0 Ft.

Jacksonville District

06-30-22

South Atlantic

N/A

Brian Simmons (Amdrill)

U.S. Naval Station Mayport, 2022

06-30-22

-46.8 Ft.

80 %

Rashmi Kola, Geotechnical Engineer

SAJ FORM 1836

JUN 02

(Continued)

GDR for Maintenance Dredging, -62.8

-66.8

Vibracore

Vibracore

NR

NOTES:

1. USACE Jacksonville is the custodian for these original files.

2. Soils are field visually classified in accordance with the Unified Soils Classification System.

3. Laboratory Testing Results

SAMPLE SAMPLE LABORATORY

ID DEPTH CLASSIFICATION

1 0.9/1.1 MH*

2 1.9/2.1 MH*

3 2.9/3.1 MH*

4 3.9/4.1 MH*

5 4.9/5.1 SP-SM*

*Lab visual classification based on gradation curve

Abbreviations:

-66.8 20.0

-62.8 16.0

INSTALLATION

LOCATION COORDINATES

COORDINATE SYSTEM/DATUMPROJECT HORIZONTAL

OFDRILLING LOG (Cont. Sheet)

ELEVATION TOP OF BORING

Boring Designation

U.S. Naval Station Mayport, 2022

-46.8 Ft.

State Plane, FLE (U.S. Ft.)

Jacksonville District

VERTICAL

SHEETS

SHEET

X = 527,211 Y = 2,203,362

VB-MP2022-03

NAD83 MLLW

RQD

OR

UD

CLASSIFICATION OF MATERIALS %

REC.

LE

G

E N

D

B O

X O

R S

A M

P

LE

REMARKS

N -V

A

LU

E

B

LO

W S

FT

DEPTH

(ft)

ELEV.

(ft)

SAJ FORM 1836-A

JUN 02

GDR for Maintenance Dredging, -47.9

-48.3

-49.3

-50.1 -50.3

-51.3

-53.3

-58.1

-60.3

Vibracore

Vibracore

Vibracore

Vibracore

Vibracore

Vibracore

Vibracore

Vibracore

Vibracore

SILT, inorganic-H, mostly silt, trace fine-grained sand-sized quartz, 10YR 3/1 very dark gray (MH)

SAND, poorly-graded with silt, mostly fine to medium-grained sand-sized quartz, few silt, 10YR 4/1 dark gray (SP-SM)

LIMESTONE, 10YR 6/1 gray

From El. -58.1 to -60.3 Ft., 10YR 6/1 gray

From El. -60.3 to -64.1 Ft., 10YR 6/1 gray

-47.9-47.9

-50.1

-53.3

0.0

2.2

5.4

0.0

RQD

OR

UD

CLASSIFICATION OF MATERIALS %

REC.

LE

G

E N

D

B O

X O

R S

A M

P

LE

REMARKS

N -V

A

LU

E

B

LO

W S

FT

DEPTH

(ft)

ELEV.

(ft)

INCLINED

DIVISION INSTALLATION

VERTICAL

14. ELEVATION GROUND WATER

HORIZONTAL

1. PROJECT

15. DATE BORING

7. DEPTH DRILLED INTO ROCK

2. BORING DESIGNATION

STARTED

3. DRILLING AGENCY

13. TOTAL NUMBER CORE BOXES

Boring Designation

17. TOTAL RECOVERY FOR BORING

10. COORDINATE SYSTEM/DATUM

MANUAL HAMMER

DRILLING LOG

CONTRACTOR FILE NO.

11. MANUFACTURER'S DESIGNATION OF DRILL

COMPLETED

18. SIGNATURE AND TITLE OF INSPECTOR

VERTICAL

OF

VB-MP2022-04

UNDISTURBED (UD)

16. ELEVATION TOP OF BORING

BEARING

8. TOTAL DEPTH OF BORING

SHEETS

5. DIRECTION OF BORING

DISTURBED

DEG. FROM

VERTICAL

SHEET

12. TOTAL SAMPLES

9. SIZE AND TYPE OF BIT

6. THICKNESS OF OVERBURDEN

VB-MP2022-04

4. NAME OF DRILLER

AUTO HAMMERLOCATION COORDINATES

NAD83

See Remarks

State Plane, FLE (U.S. Ft.)

X = 528,615 Y = 2,203,917

MLLW

N/A

CSI/TSF JV

20.0 Ft.

Jacksonville District

06-30-22

South Atlantic

N/A

Brian Simmons (Amdrill)

U.S. Naval Station Mayport, 2022

06-30-22

-47.9 Ft.

81 %

Rashmi Kola, Geotechnical Engineer

SAJ FORM 1836

JUN 02

(Continued)

GDR for Maintenance Dredging, -64.1

-67.9

Vibracore

Vibracore

NR

NOTES:

1. USACE Jacksonville is the custodian for these original files.

2. Soils are field visually classified in accordance with the Unified Soils Classification System.

3. Laboratory Testing Results

SAMPLE SAMPLE LABORATORY

ID DEPTH CLASSIFICATION

1 0.4/0.6 MH*

2 1.4/1.6 MH*

3 2.4/2.6 SP-SM*

4 3.4/3.6 SP-SM*

*Lab visual classification based on gradation curve

Abbreviations:

-67.9 20.0

-64.1 16.2

INSTALLATION

LOCATION COORDINATES

COORDINATE SYSTEM/DATUMPROJECT HORIZONTAL

OFDRILLING LOG (Cont. Sheet)

ELEVATION TOP OF BORING

Boring Designation

U.S. Naval Station Mayport, 2022

-47.9 Ft.

State Plane, FLE (U.S. Ft.)

Jacksonville District

VERTICAL

SHEETS

SHEET

X = 528,615 Y = 2,203,917

VB-MP2022-04

NAD83 MLLW

RQD

OR

UD

CLASSIFICATION OF MATERIALS %

REC.

LE

G

E N

D

B O

X O

R S

A M

P

LE

REMARKS

N -V

A

LU

E

B

LO

W S

FT

DEPTH

(ft)

ELEV.

(ft)

SAJ FORM 1836-A

JUN 02

GDR for Maintenance Dredging, -49.2

-49.6

-50.6

-52.1

-53.5

-57.2

-58.5

-61.0

Vibracore

Vibracore

Vibracore

Vibracore

Vibracore

Vibracore

Vibracore

NR

SILT, inorganic-H, mostly silt, some fine-grained sand-sized quartz, 10YR 3/1 very dark gray (MH)

CLAY, lean, mostly clay, few fine-grained sand-sized quartz, 10YR 3/1 very dark gray

(CL)

SILT, inorganic-L, mostly silt, few fine-grained sand-sized quartz, few sand to gravel-sized limestone, 10YR 3/1 very dark gray (ML)

BORING TERMINATED IN REFUSAL

NOTES:

1. USACE Jacksonville is the custodian for these original files.

2. Soils are field visually classified in accordance with the Unified Soils Classification System.

Abbreviations:

-49.2-49.2

-53.5

-57.2

-61.0 11.8

0.0

4.3

8.0

0.0

-58.5 9.3

RQD

OR

UD

CLASSIFICATION OF MATERIALS %

REC.

LE

G

E N

D

B O

X O

R S

A M

P

LE

REMARKS

N -V

A

LU

E

B

LO

W S

FT

DEPTH

(ft)

ELEV.

(ft)

INCLINED

DIVISION INSTALLATION

VERTICAL

14. ELEVATION GROUND WATER

HORIZONTAL

1. PROJECT

15. DATE BORING

7. DEPTH DRILLED INTO ROCK

2. BORING DESIGNATION

STARTED

3. DRILLING AGENCY

13. TOTAL NUMBER CORE BOXES

Boring Designation

17. TOTAL RECOVERY FOR BORING

10. COORDINATE SYSTEM/DATUM

MANUAL HAMMER

DRILLING LOG

CONTRACTOR FILE NO.

11. MANUFACTURER'S DESIGNATION OF DRILL

COMPLETED

18. SIGNATURE AND TITLE OF INSPECTOR

VERTICAL

OF

VB-MP2022-05

UNDISTURBED (UD)

16. ELEVATION TOP OF BORING

BEARING

8. TOTAL DEPTH OF BORING

SHEETS

5. DIRECTION OF BORING

DISTURBED

DEG. FROM

VERTICAL

SHEET

12. TOTAL SAMPLES

9. SIZE AND TYPE OF BIT

6. THICKNESS OF OVERBURDEN

VB-MP2022-05

4. NAME OF DRILLER

AUTO HAMMERLOCATION COORDINATES

NAD83

See Remarks

State Plane, FLE (U.S. Ft.)

X = 529,446 Y = 2,204,124

MLLW

N/A

CSI/TSF JV

11.8 Ft.

Jacksonville District

06-30-22

South Atlantic

N/A

Brian Simmons (Amdrill)

U.S. Naval Station Mayport, 2022

06-30-22

-49.2 Ft.

79 %

Rashmi Kola, Geotechnical Engineer

SAJ FORM 1836

JUN 02

(Continued)

GDR for Maintenance Dredging,

3. Laboratory Testing Results

SAMPLE SAMPLE LABORATORY

ID DEPTH CLASSIFICATION

1 0.4/0.6 MH

2 1.4/1.6 MH*

3 2.9/3.1 MH*

*Lab visual classification based on gradation curve

SAMPLE LABORATORY

DEPTH SOIL TESTING RESULT UNIT

0.5 Atterberg (PI) 110

INSTALLATION

LOCATION COORDINATES

COORDINATE SYSTEM/DATUMPROJECT HORIZONTAL

OFDRILLING LOG (Cont. Sheet)

ELEVATION TOP OF BORING

Boring Designation

U.S. Naval Station Mayport, 2022

-49.2 Ft.

State Plane, FLE (U.S. Ft.)

Jacksonville District

VERTICAL

SHEETS

SHEET

X = 529,446 Y = 2,204,124

VB-MP2022-05

NAD83 MLLW

RQD

OR

UD

CLASSIFICATION OF MATERIALS %

REC.

LE

G

E N

D

B O

X O

R S

A M

P

LE

REMARKS

N -V

A

LU

E

B

LO

W S

FT

DEPTH

(ft)

ELEV.

(ft)

SAJ FORM 1836-A

JUN 02

GDR for Maintenance Dredging, -50.0

-50.4

-51.3

-51.9

-52.5

-52.9

-54.0

-55.2

-57.1

-63.0

Vibracore

Vibracore

Vibracore

Vibracore

Vibracore

Vibracore

Vibracore

Vibracore

Vibracore

Vibracore

NR

SAND, poorly-graded, mostly fine to medium-grained sand-sized quartz, trace clay, 10YR 5/1 gray (SP)

SAND, poorly-graded with clay, mostly fine to medium-grained sand-sized quartz, few clay, 10YR 5/1 gray (SP-SC)

SAND, clayey, mostly fine to medium-grained sand-sized quartz, little clay, trace wood debris, 10YR 5/1 gray (SC)

SAND, poorly-graded, mostly fine to medium-grained sand-sized quartz, few sand to gravel-sized shell, trace clay, trace wood debris, 10YR 5/1 gray (SP) From El. -55.2 to -57.1 Ft., mostly fine to medium-grained sand-sized quartz, little sand to gravel-sized shell, trace clay, 10YR 5/1 gray

From El. -57.1 to -63.0 Ft., mostly fine to medium-grained sand-sized quartz, trace silt, 10YR 6/1 gray

-50.0-50.0

-51.3

-52.5

-54.0

0.0

1.3

2.5

4.0

0.0

-63.0 13.0

RQD

OR

UD

CLASSIFICATION OF MATERIALS %

REC.

LE

G

E N

D

B O

X O

R S

A M

P

LE

REMARKS

N -V

A

LU

E

B

LO

W S

FT

DEPTH

(ft)

ELEV.

(ft)

INCLINED

DIVISION INSTALLATION

VERTICAL

14. ELEVATION GROUND WATER

HORIZONTAL

1. PROJECT

15. DATE BORING

7. DEPTH DRILLED INTO ROCK

2. BORING DESIGNATION

STARTED

3. DRILLING AGENCY

13. TOTAL NUMBER CORE BOXES

Boring Designation

17. TOTAL RECOVERY FOR BORING

10. COORDINATE SYSTEM/DATUM

MANUAL HAMMER

DRILLING LOG

CONTRACTOR FILE NO.

11. MANUFACTURER'S DESIGNATION OF DRILL

COMPLETED

18. SIGNATURE AND TITLE OF INSPECTOR

VERTICAL

OF

VB-MP2022-06

UNDISTURBED (UD)

16. ELEVATION TOP OF BORING

BEARING

8. TOTAL DEPTH OF BORING

SHEETS

5. DIRECTION OF BORING

DISTURBED

DEG. FROM

VERTICAL

SHEET

12. TOTAL SAMPLES

9. SIZE AND TYPE OF BIT

6. THICKNESS OF OVERBURDEN

VB-MP2022-06

4. NAME OF DRILLER

AUTO HAMMERLOCATION COORDINATES

NAD83

See Remarks

State Plane, FLE (U.S. Ft.)

X = 530,523 Y = 2,204,752

MLLW

N/A

CSI/TSF JV

16.5 Ft.

Jacksonville District

06-30-22

South Atlantic

N/A

Brian Simmons (Amdrill)

U.S. Naval Station Mayport, 2022

06-30-22

-50.0 Ft.

79 %

Rashmi Kola, Geotechnical Engineer

SAJ FORM 1836

JUN 02

(Continued)

GDR for Maintenance Dredging, -66.5

BORING TERMINATED IN REFUSAL

NOTES:

1. USACE Jacksonville is the custodian for these original files.

2. Soils are field visually classified in accordance with the Unified Soils Classification System.

3. Laboratory Testing Results

SAMPLE SAMPLE LABORATORY

ID DEPTH CLASSIFICATION

1 0.4/0.6 SP*

2 1.3/1.5 SP-SC*

3 1.9/2.1 SP-SC*

4 2.9/3.1 SC*

*Lab visual classification based on gradation curve

Abbreviations:

-66.5 16.5

INSTALLATION

LOCATION COORDINATES

COORDINATE SYSTEM/DATUMPROJECT HORIZONTAL

OFDRILLING LOG (Cont. Sheet)

ELEVATION TOP OF BORING

Boring Designation

U.S. Naval Station Mayport, 2022

-50.0 Ft.

State Plane, FLE (U.S. Ft.)

Jacksonville District

VERTICAL

SHEETS

SHEET

X = 530,523 Y = 2,204,752

VB-MP2022-06

NAD83 MLLW

RQD

OR

UD

CLASSIFICATION OF MATERIALS %

REC.

LE

G

E N

D

B O

X O

R S

A M

P

LE

REMARKS

N -V

A

LU

E

B

LO

W S

FT

DEPTH

(ft)

ELEV.

(ft)

SAJ FORM 1836-A

JUN 02

GDR for Maintenance Dredging, -49.3

-49.7

-52.0

-52.6

-53.2

-54.3

-59.3

-59.8

-64.3

Vibracore

Vibracore

Vibracore

Vibracore

Vibracore

Vibracore

Vibracore

Vibracore

SILT, inorganic-H, mostly silt, few fine-grained sand-sized quartz, 10YR 5/1 gray (MH)

SAND, clayey, mostly fine to medium-grained sand-sized quartz, some clay, 10YR 5/1 gray (SC) SAND, poorly-graded, mostly fine to medium-grained sand-sized quartz, little sand to gravel-sized shell, trace clay, 10YR 5/1 gray (SP)

From El. -54.3 to -59.3 Ft., mostly fine to medium-grained sand-sized quartz, few sand to gravel-sized shell, trace clay, 10YR 5/1 gray

SAND, poorly-graded with clay, mostly fine to medium-grained sand-sized quartz, few sand to gravel-sized shell, few clay, 10YR 5/1 gray

(SP-SC)

SAND, poorly-graded, mostly fine to medium-grained sand-sized quartz, trace clay, 10YR 6/1 gray (SP)

-49.3-49.3

-52.0

-52.6

-59.3

-59.8

0.0

2.7

3.3

10.0

10.5

0.0

-64.3 15.0

RQD

OR

UD

CLASSIFICATION OF MATERIALS %

REC.

LE

G

E N

D

B O

X O

R S

A M

P

LE

REMARKS

N -V

A

LU

E

B

LO

W S

FT

DEPTH

(ft)

ELEV.

(ft)

INCLINED

DIVISION INSTALLATION

VERTICAL

14. ELEVATION GROUND WATER

HORIZONTAL

1. PROJECT

15. DATE BORING

7. DEPTH DRILLED INTO ROCK

2. BORING DESIGNATION

STARTED

3. DRILLING AGENCY

13. TOTAL NUMBER CORE BOXES

Boring Designation

17. TOTAL RECOVERY FOR BORING

10. COORDINATE SYSTEM/DATUM

MANUAL HAMMER

DRILLING LOG

CONTRACTOR FILE NO.

11. MANUFACTURER'S DESIGNATION OF DRILL

COMPLETED

18. SIGNATURE AND TITLE OF INSPECTOR

VERTICAL

OF

VB-MP2022-07

UNDISTURBED (UD)

16. ELEVATION TOP OF BORING

BEARING

8. TOTAL DEPTH OF BORING

SHEETS

5. DIRECTION OF BORING

DISTURBED

DEG. FROM

VERTICAL

SHEET

12. TOTAL SAMPLES

9. SIZE AND TYPE OF BIT

6. THICKNESS OF OVERBURDEN

VB-MP2022-07

4. NAME OF DRILLER

AUTO HAMMERLOCATION COORDINATES

NAD83

See Remarks

State Plane, FLE (U.S. Ft.)

X = 531,442 Y = 2,204,574

MLLW

N/A

CSI/TSF JV

15.7 Ft.

Jacksonville District

06-30-22

South Atlantic

N/A

Brian Simmons (Amdrill)

U.S. Naval Station Mayport, 2022

06-30-22

-49.3 Ft.

96 %

Rashmi Kola, Geotechnical Engineer

SAJ FORM 1836

JUN 02

(Continued)

GDR for Maintenance Dredging, -65.0

NOTES:

1. USACE Jacksonville is the custodian for these original files.

2. Soils are field visually classified in accordance with the Unified Soils Classification System.

3. Laboratory Testing Results

SAMPLE SAMPLE LABORATORY

ID DEPTH CLASSIFICATION

1 0.4/0.6 MH

2 2.7/2.9 SC*

3 3.9/4.1 SP*

*Lab visual classification based on gradation curve

SAMPLE LABORATORY

DEPTH SOIL TESTING RESULT UNIT

0.5 Atterberg (PI) 64

Abbreviations:

-65.0 15.7

INSTALLATION

LOCATION COORDINATES

COORDINATE SYSTEM/DATUMPROJECT HORIZONTAL

OFDRILLING LOG (Cont. Sheet)

ELEVATION TOP OF BORING

Boring Designation

U.S. Naval Station Mayport, 2022

-49.3 Ft.

State Plane, FLE (U.S. Ft.)

Jacksonville District

VERTICAL

SHEETS

SHEET

X = 531,442 Y = 2,204,574

VB-MP2022-07

NAD83 MLLW

RQD

OR

UD

CLASSIFICATION OF MATERIALS %

REC.

LE

G

E N

D

B O

X O

R S

A M

P

LE

REMARKS

N -V

A

LU

E

B

LO

W S

FT

DEPTH

(ft)

ELEV.

(ft)

SAJ FORM 1836-A

JUN 02

GDR for Maintenance Dredging, -52.6 -52.8

-53.4

-54.6

-55.5

-58.6

-59.5

-62.6

-67.6

Vibracore Vibracore

Vibracore

Vibracore

Vibracore

Vibracore

Vibracore

Vibracore

SHELL, mostly sand to gravel-sized shell, some medium to coarse-grained sand-sized quartz, trace silt, 10YR 5/1 gray SAND, poorly-graded, mostly fine to coarse-grained sand-sized quartz, some sand to gravel-sized shell, trace silt, 10YR 5/1 gray (SP) SAND, silty, mostly fine to medium-grained sand-sized quartz, few silt, 5Y 3/2 dark olive gray (SM)

SAND, poorly-graded with silt, mostly fine to medium-grained sand-sized quartz, few silt, 5Y 3/2 dark olive gray (SP-SM)

SAND, silty, mostly fine to medium-grained sand-sized quartz, little silt, 10YR 4/1 dark gray (SM)

-52.6-52.6

-53.4

-54.6

-58.6

-62.6

-67.6

0.0

0.8

2.0

6.0

10.0

15.0

0.0

RQD

OR

UD

CLASSIFICATION OF MATERIALS %

REC.

LE

G

E N

D

B O

X O

R S

A M

P

LE

REMARKS

N -V

A

LU

E

B

LO

W S

FT

DEPTH

(ft)

ELEV.

(ft)

INCLINED

DIVISION INSTALLATION

VERTICAL

14. ELEVATION GROUND WATER

HORIZONTAL

1. PROJECT

15. DATE BORING

7. DEPTH DRILLED INTO ROCK

2. BORING DESIGNATION

STARTED

3. DRILLING AGENCY

13. TOTAL NUMBER CORE BOXES

Boring Designation

17. TOTAL RECOVERY FOR BORING

10. COORDINATE SYSTEM/DATUM

MANUAL HAMMER

DRILLING LOG

CONTRACTOR FILE NO.

11. MANUFACTURER'S DESIGNATION OF DRILL

COMPLETED

18. SIGNATURE AND TITLE OF INSPECTOR

VERTICAL

OF

VB-MP2022-08

UNDISTURBED (UD)

16. ELEVATION TOP OF BORING

BEARING

8. TOTAL DEPTH OF BORING

SHEETS

5. DIRECTION OF BORING

DISTURBED

DEG. FROM

VERTICAL

SHEET

12. TOTAL SAMPLES

9. SIZE AND TYPE OF BIT

6. THICKNESS OF OVERBURDEN

VB-MP2022-08

4. NAME OF DRILLER

AUTO HAMMERLOCATION COORDINATES

NAD83

See Remarks

State Plane, FLE (U.S. Ft.)

X = 534,164 Y = 2,205,763

MLLW

N/A

CSI/TSF JV

20.0 Ft.

Jacksonville District

06-30-22

South Atlantic

N/A

Brian Simmons (Amdrill)

U.S. Naval Station Mayport, 2022

06-30-22

-52.6 Ft.

100 %

Rashmi Kola, Geotechnical Engineer

SAJ FORM 1836

JUN 02

(Continued)

GDR for Maintenance Dredging, -72.6

Vibracore100

CLAY, lean, mostly clay, few sand to gravel-sized shells at 15', 10YR 4/1 dark gray (CL)

NOTES:

1. USACE Jacksonville is the custodian for these original files.

2. Soils are field visually classified in accordance with the Unified Soils Classification System.

3. Laboratory Testing Results

SAMPLE SAMPLE LABORATORY

ID DEPTH CLASSIFICATION

1 0.0/0.2 SHELL*

2 0.8/1.0 SP*

3 2.9/3.1 SM*

4 6.9/7.1 SP-SM*

*Lab visual classification based on gradation curve

-72.6 20.0

INSTALLATION

LOCATION COORDINATES

COORDINATE SYSTEM/DATUMPROJECT HORIZONTAL

OFDRILLING LOG (Cont. Sheet)

ELEVATION TOP OF BORING

Boring…