Volume II_25BA015_PBC_Delray_FY25_GDR.pdf

SECTION 00 31 32

Geotechnical Data Report for

Beach Renourishment Delray

Palm Beach County, Florida

Prepared by

Geosystems Branch

Engineering Division

Jacksonville District Corps of Engineers

February 13, 2025

GEOTECHNICAL DATA REPORT

Table of Contents

1 SCOPE

2 CHARACTER OF MATERIALS

2.1 Regional Geology

2.2 The Local Geology

2.3 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. Available Surficial Samples Data Table 3: 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

Palm Beach County SPP Delray Beach Segment Palm Beach County, Florida

SECTION 00 31 32 2

GEOTECHNICAL DATA REPORT

1 SCOPE

The information provided in this section encompasses the geotechnical field investigations available for this project. The investigations consist of borings. The associated boring 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 boring 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 boring logs. When reviewing the boring logs, use all of the data on the logs, including the materials description, legend, and blow counts. When evaluating the subsurface conditions, use all of the data, including the character of materials paragraph and boring 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 borings presented in Table 1 under paragraph 4.1 were provided by the project sponsor and may not conform to Corps of Engineers standards. Prospective offerors are cautioned to use great care in the evaluation of these borings.

2.1 REGIONAL GEOLOGY

This project is located on the barrier island beach on the Atlantic Ocean, in south central Palm Beach County, in the Atlantic Coastal Ridge physiographic unit. The regional geology of Palm Beach County for the Quaternary and upper Tertiary Systems range in age from Recent to Pleistocene to Miocene Age sediments. The Recent to late Pleistocene Age sediments are undifferentiated and cover the entire county with an average 2-foot thickness. Along the coast, the sediments can be up to 10-feet thick and consist of: fine to medium quartz sands and shell. To the west, the sand bed thins and organic soils are found above the sand. Below the sands, the mid to early Pleistocene Anastasia Formation is present. The Anastasia forms the base for the barrier islands and the offshore reefs in the county. The Anastasia is composed of semi-consolidated fine quartz and carbonate sands, sandstone, limestone, coquina, and shell beds.

The Anastasia attains a maximum thickness of 200 feet at the coast and thins to 50-feet at the edge of the Everglades, where it then becomes classified as the Ft. Thompson Formation. The Ft.

Thompson varies throughout, but is primarily composed of marine sands, shell beds, limestones, or sandstone and freshwater marls or limestones. These deposits lie conformably with the upper Miocene/Pliocene sediments of the Caloosahatchee and Tamiami Formations. The Caloosahatchee and Tamiami sediments are comprised of shelly sand, silty shelly sand, and sandy marl with occasional thin interbedded limestone and sandstone. These sediments vary in thickness (10-140 feet) throughout the county and have an overall trend to thicken to the east.

Palm Beach County SPP Delray Beach Segment

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2.2 THE LOCAL GEOLOGY

The sandy shoreface along Palm Beach County is periodically interrupted by step-like rocky ridges that are likely local exposures of the consolidated Anastasia Formation, which supports modern hardbottom habitat. At the seaward boundary of the shoreface slope, the cross-shore profile flattens and transitions into the first flat. The first flat ranges from approximately 1,050 feet to 5,100 feet wide and is bounded by a seaward, shore-parallel, relic Holocene reef and lithified sand ridge.

Multiple relic Holocene reefs and lithified sand ridges that formed during back-stepping of the reefs in response to changes in sea level occur landward of the continental shelf slope break.

2.3 MATERIALS ENCOUNTERED

The character of materials to be dredged within the offshore borrow area is indicated on the vibracore boring logs and laboratory data. All borings provided within this GDR are sponsor-supplied and may not conform to the Corps of Engineers standards. Prospective offerors are cautioned to use great care in the evaluation of these borings.

The material within the borrow areas consists primarily of poorly-graded, fine to medium-grained sand with varying amounts of sand to gravel sized shell hash and variable amounts of whole and broken shell and limestone/rock ranging from fine gravel size to cobble size, and trace silt.

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 ft. (6 mm) to 0.1 ft. (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.

Discontinue – Particles were present within the unit above but are no longer present.

Palm Beach County SPP Delray Beach Segment

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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 ft. (9.1 cm) to 1 ft. (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 ft. (1.8 m).

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

Massive – Over 3 ft. (0.9 m) thick.

Medium-Bedded - 0.3 ft. (9.1 cm) to 1 ft. (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 ft. (30.5 cm) to 3 ft. (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 ft. (0.9 m) to 6 ft. (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 ft. (30.5 cm) to 3 ft. (0.9 m) thick.

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

Thin Parting - Paper thin to 0.002 ft. (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.

Palm Beach County SPP Delray Beach Segment

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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 D6913 Hydrometer Analysis ASTM D7928 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

Palm Beach County SPP Delray Beach Segment

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Test/Procedure Method Moisture Content ASTM D2216

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 D7012

Unconfined Compressive Strength for Rock up to 9,000 psi with Strain ASTM D7012

Unconfined Compressive Strength for Soil ASTM D7012 Unit Weight and Absorption ASTM C127 Unit Weight of Aggregate ASTM C29 - Visual Percent Shell No ASTM Wetting and Drying ASTM D5313

4 GEOTECHNICAL DATA

4.1 SUMMARY OF FIELD INVESTIGATIONS

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

Palm Beach County SPP Delray Beach Segment

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Table 1. Available Vibracore Data

Designation State Plane, FL-East, NAD83 Project Location X Y

DB-99-1* 967646 779619

Borrow Area D-IV

DB-99-2* 967054 778460

DB-99-3* 966859 777254

DB-99-4* 966714 776416

DB-99-5* 966605 775388

DBVC-19-01 968108 786615

Borrow Area D-V DBVC-19-02 968707 785177

DBVC-19-03 967527 784438

DBVC-19-04 968540 781924

DBVC-19-05 966951 779457

Borrow Area D-IV DBVC-19-06 966976 775845

DBVC-19-17 966686 777496

DBVC-19-18 967385 778880

DBVC-19-19 968987 785849

Borrow Area D-V

DBVC-19-20 968007 785832

DBVC-19-21 967643 783663

DBVC-19-27 968029 781116

DBVC-19-28 967207 781051

DBVC-19-29 967541 781959

DBVC-19-30 968378 783529

DBVC-19-31 968046 785053

DBVC-19-32 967607 779487

Borrow Area D-IV

DBVC-19-33 966798 778503

DBVC-19-34 967287 777826

DBVC-19-35 967171 776891

DBVC-19-36 966402 776326

DBVC-19-37 966297 775316

DBVC-19-46 968822 784351 Borrow Area D-V *Coordinates presented have been converted and correspond to the project coordinate system and datum

Table 2. Available Surficial Samples Data

Designation State Plane, FL-East, NAD83 Project Location X Y

SS-PBCDB24-01 967022 779661

Borrow Area D-IV

SS-PBCDB24-02 967496 778861

SS-PBCDB24-03 966863 778373

SS-PBCDB24-04 967339 777726

SS-PBCDB24-05 966649 777246

SS-PBCDB24-06 967169 776591

SS-PBCDB24-07 966549 776316

SS-PBCDB24-08 967010 775668

SS-PBCDB24-09 966467 775212

Palm Beach County SPP Delray Beach Segment

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4.2 SUMMARY OF INDEX TESTING DATA

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

Table 3: Index Testing Available for this Project

Boring Sample USCS CO3 % Visual

Shell % Munsell

Designation Designation Color

DB-99-1

1 SP 5Y 6/1

2 SP 5Y 6/1

3 SP 5Y 5/1

4 SP 5Y 5/1

5 SP 5Y 6/1

DB-99-2

1 SP 5Y 5/1

2 SP 5Y 5/1

3 SP 5Y 5/1

4 SP 5Y 5/1

5 SP 5Y 5/1

6 SP 5Y 5/1

7 SP 5Y 5/1

DB-99-3

1 SP 5Y 6/1

2 SP 5Y 6/1

3 SP 5Y 6/1

4 SP 5Y 6/1

5 SP 5Y 6/1

DB-99-4

1 SP 5Y 6/1

2 SP 5Y 6/1

3 SP 5Y 7/1

4 SP 5Y 6/1

5 SP 5Y 6/1

6 SP 5Y 6/1

7 SP 5Y 6/1

8 SP 5Y 5/1

DB-99-5

1 SP 5Y 6/1

2 SP 5Y 6/1

3 SP 5Y 6/1

4* SP 5Y 6/1

5 SP 5Y 6/1

6 SP 5Y 6/1

DBVC-19-01

1 SP 49 2.5Y 6/1

2 SW 51 2.5Y 6/1

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Boring Sample USCS CO3 % Visual

Shell % Munsell

Designation Designation Color

3 SW 59 2.5Y 6/1

4 SP 50 2.5Y 6/1

DBVC-19-02

1 SP 37 2.5Y 6/1

2 SP 39 2.5Y 6/1

3 SP 40 2.5Y 6/1

DBVC-19-03

1 SW 56 2.5Y 6/1

2 SP 53 2.5Y 6/1

3 SP 56 2.5Y 6/1

DBVC-19-04

1 SP 36 2.5Y 6/1

2 SP 37 2.5Y 6/1

3 SP 42 2.5Y 6/1

DBVC-19-05

1 SW 56 2.5Y 6/1

2 SP 50 2.5Y 6/1

3 SP 56 2.5Y 6/1

DBVC-19-06

1 SP 47 N 6/0

2 SP 48 N 6/0

3 SW 55 N 6/0

4 SP 49 N 6/0

5 SW 70 N 6/0

6 SP 48 N 6/0

DBVC-19-17

1 SW 52 N 6/0

2 SP 47 N 6/0

3 SP 53 N 6/0

DBVC-19-18

1 SP 39 N 6/0

2 SW 57 N 5/0

3 SP 50 N 5/0

DBVC-19-19

1 SP 36 N 6/0

2 SP 36 N 6/0

DBVC-19-20

1 SP 45 N 6/0

2 SW 59 N 5/0

3 SW 58 N 5/0

4 SP 45 N 5/0

DBVC-19-21

1 SW 48 N 6/0

2 SW 62 N 5/0

3 SP 54 N 5/0

DBVC-19-27

1 SP 41 N 6/0

2 SP 40 N 6/0

3 SP 39 N 6/0

DBVC-19-01

Palm Beach County SPP Delray Beach Segment

SECTION 00 31 32 10

Shell % Munsell

Designation Designation Color

DBVC-19-28

1 SP 45 5Y 6/1

2 SW 49 N 6/0

3 SW 63 N 5/0

4 SW 60 N 6/0

5 SP 49 N 6/0

DBVC-19-29

1 SP 40 N 6/0

2 SW 67 N 5/0

3 SW 49 N 6/0

4 SW 62 N 5/0

5 SP 51 N 6/0

6 SP 46 N 6/0

DBVC-19-30

1 SP 39 N 6/0

2 SP 40 N 6/0

3 SP 39 N 6/0

DBVC-19-31

1 SW 50 2.5Y 6/1

2 SW 49 N 6/0

3 SW 62 N 6/0

4 SW 62 N 5/0

5 SP 44 N 6/0

6 SP 49 N 5/0

DBVC-19-32

1 SP 40 N 6/0

2 SW 54 N 5/0

3 SP 51 N 6/0

4 SP 51 N 6/0

DBVC-19-33

1 SP 55 N 5/0

2 SP 45 N 6/0

3 SW 53 N 6/0

4 SW 69 N 5/0

5 SW 55 N 5/0

6 SP 55 N 5/0

DBVC-19-34

1 SP 39 N 6/0

2 SP 51 N 5/0

3 SP 47 N 5/0

4 SW 61 N 5/0

DBVC-19-35

1 SP 40 N 6/0

2 SW 58 N 5/0

Palm Beach County SPP Delray Beach Segment

SECTION 00 31 32 11

Shell % Munsell

Designation Designation Color

3 SP 44 N 6/0

4 SP 40 N 6/0

DBVC-19-36

1 SW 49 N 6/0

2 SW 66 N 6/0

3 SP 55 N 6/0

4 SP 51 N 5/0

DBVC-19-37

1 SP 49 5Y 6/1

2 SW 52 5Y 6/1

3 SW 53 5Y 6/1

4 SP 57 5Y 6/1

DBVC-19-46

1 SP 51 N 6/0

2 SP 56 N 6/0

SS-PBCDB24-01 1 SP 0 10YR 5/1

SS-PBCDB24-02 1 SP 0 10YR 5/1

SS-PBCDB24-03 1 SP 0 10YR 5/1

SS-PBCDB24-04 1 SP 0 10YR 5/1

SS-PBCDB24-05 1 SW 15 10YR 5/1

SS-PBCDB24-06 1 SP 0 10YR 5/1

SS-PBCDB24-07 1 SP 0 10YR 5/1

SS-PBCDB24-08 1 SP 0 10YR 5/1

SS-PBCDB24-09 1 SP 0 10YR 5/1

USCS: Unified Soil Classification System CO3%: Carbonate Content

4.3 BORING LOG NOTES

Borings DB-99-1 to DB-99-5 and DBVC-19-01 to DBVC-19-06, DBVC-19-17 to DBVC-19-21, DBVC-19-27 to DBVC-19-37, and DBVC-19-46 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 two minutes of additional effort applied to penetrate through the resistant layer at maximum vibration.

Surface Samples SS-PBCDB24-01 to SS-PBCDB24-09 were collected with an AMS 6”x6”x6” clam shell sampler which weighs approximately 25 pounds. The sampler was tied to nylon rope and mounted on a shipboard winch with pulley. During sampling, the clam shell was allowed to free-fall from the winch at the target location.

4.4 INSPECTION OF RECOVERED MATERIALS

The material recovered from borings is not available for inspection.

DBVC-19-35

Palm Beach County SPP Delray Beach Segment

SECTION 00 31 32 12

Palm Beach County SPP Delray Beach Segment

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4.5 BORING LOGS

Applicable boring logs are presented on the following pages. The borings were supplied by the project sponsor and may not conform to Corps of Engineers standards. The borings from 1999 were converted from their original datum to the project datum. Prospective offerors are cautioned to use great care in the evaluation of these borings. To be used for information only.

Palm Beach County SPP Delray Beach Segment

SECTION 00 31 32 16

SECTION 00 31 32 17

SECTION 00 31 32 18

SECTION 00 31 32 19

HOLE NO DB-994

INSTALLATION: Jacksonvilro District SHEET 1 of1

1. PROJECT

DELRAY BEACH

10. SIZE AND TYPE OF BIT 3"

--------- -------------------------------- 11.DATUMFORELEVATIONSHOWN (TBMorMSL) (CoordiMtes or Station) NAVD 8 8

2· LOCATION Xo 966,715 Y= 776,416 ---------------------------------------------

12. MANUFACTURER'S DESIGNATION OF DRILL

3. DRILLING AGENCY: ALPINE SEISMIC ALPINE PNEUMI\fi9 ______________ --------- _

4. HOLE NO. (As si10'M1 on drav.ing title and nle number) 13. TOT NO. 01' OVERBURDEN SAMPLES TAKEtl disturbed: 0.0 undisturbed: 0.0 DB--99-4

------------------------------------ 14. TOTAL 110. OF CORE BOXES 1

-----------·---------------1 6. NAME OF DRILLER

ROB SUSKO 16. ELEVATION GROUND WATER

VERTICAL

------------- ------ -- --------------------------------·--::------cc-:----:-··------------ -- -------------

16. DATE HOLE Started Comple1ed ________________ 4/2!.lll1_9_ _ __,4,12._,Qllil9.,9'-------------

6. DIRECTION OF HOLE

f------------------------i17. ELEVATION TOP 01' HOLE

----------1 7. THICKNESS OF BURDEN 0,0 FT

--------1-'f~~_!I:)_T_~-CORE RECOVERY FOR IJO_RI_N(l'~0~:c.--------l

§,_pEPTH DRILLED INTO ROCK 0.0 FL.__ -------------- 1S.SIGNATURE OF GEOLOGIST IBRAHIM DREMALI

5. TOTAL DEPTH OF HOLE 18.9' FT

ELEV.

-34.0

-35.1

-36.0

-36.7

-38.5

-49.7

-50.5

-52.9

DEPTH

a z w

!il ..J

CLASSIFICATION OF MATERIALS

(Description)

CORE

REC

REMARKS

.'"":_,.:.,.: -l--S-A_N_D-, -lin_"iJ_ra_ln_e_d-, G-r-'ff>/-(5-Y--6-/1-)-(S_P_) __ ...J,_t_-_:_-_-t--_,1':_~P'~B]'i$.f~1o.~~~~ ~grtfug

1 _ ¢ fine-grained, trace shell h~sh, Gray (SY-6/1) 2 Sample#2 Depth~

8 ~--·::.-. -:~ (SP) from -33.2. to -33.9 /

0.24 mm, ~.18 phi sorting

2 _ ~ -.-~ fine-grained, some shell hash, Light Gray ~J:'pfJ~. DeJJth = 1_6•

- .-. -·.·.!' (5Y-711) (SP)from-33.9'to-34.8' / 4 048mm t5oph!sortlng ~~\fine-grained, little shell hash, Gray (5Y-6/1) / o:82% sill ·

3--;. ·:·::···. (SP) from -34.8' to --35.5' ' Sample #4, 01fth~ 2.4' : _.-: ···: :. fine-grained, IHtle shell hash, Gray (5Y-6/1) 5 ~:fi9•7o1~JI O.S phi sorting

- Sample #5 Depth= 3.5' 4-:: -::-::-. (SP) from -35.5' to --37.3' g.35 mm. 1.16 phi sorting =~ .95%sln

5- ·_:_-::::"::_

6-:-:.:-. .-

10_:. __ .

fine-grained, trace shell hash, Gray (5Y-6/1)

(SP) from --37.3'to -48.5'

16-~ fine-grained, trace shell hash, Gray (5Y-6/1)

·: · · · · · (SP) from -48,5' to -49.31

17.: :-: .. ·.

-=· .. ·-18-;:.:-·:·· ... _ 19 -·-:.-_-·:.

20~

21.:

22.:

23~ II :

24.:

fine-grained, trace shell hash, Gray (5Y-5/1) (SP) fmm -49.3'to -51.7'

End ofBorlng

Sample #6, Depth= 8.0'

0.23 mm. 0.78 phi sorting 1.70% si" •

Sample #7, Degth = 13.0'

0.26 mm

0.77 phi sorting

1.04% sll

Sample #8 Deoth = 16.0

0.28 mm b.B5 phi sorting

1.06% sil

Note: Solis are classified in accordance wHh the UnirJed Soils Classification System.

~-~~~~T:· D_elra_y_Be_a_ch ___ __,}_H_o_LE_-_N~MB": ______ _

Palm Beach County SPP Delray Beach Segment

SECTION 00 31 32 20

HOLE NO. DB-99-5

DRILLING LOG J DIVISION: Soutll Atlantic ltlSTALLATIOII: Jacksonvlllo District SHEET 1 of1

1.PROJECT

DELRAY BE'ACH

10. SIZE AND TYPE OF BIT 3'

------· ------- ----··------------------------------------ 11. DATUM FOR ELEVATION SHOWN (TBM or MSL)

(COordina!esorstation) NAVD 88 ·=--------------1 2· LOCATION X= 966,605 Y= 775,388 -l------~__:_::_:::.::.::_:__:___:__:_:.=;:_-------112. MAHUI'AOTURER'S DESIGNATION OF DRILL

3. DRILLING AGENCY: ALPINE SEISMIC _ __________ ALPINE PJII!::l)_M_ATIC ______________ --------

~~L-E_N_O ____ (_A_s ~own on drav.1ng title_o_n_d n-,le_n_um_b_er_) ____ --f13. TOT NO. OF OVERBURDEN SAMPLES TAKEN

DB-99-5 disturbed: 0.0 undisturbed: 0.0

--- 14. TOTAL NO. OF CORE BOXES 1

__ 6. NAM_E_O_F_DRIL~ER ___ R_O~ S_U_S_K_O ___________ ···------ 15. ELEVATION GROUND WATER -----------------

16. DATE.HOLE ___ Si;lrte;i ·-· - Comp!e!ed G. DIRECTION OF HOLE

VERn CAL ____ _j~ui:EiiiTiONITOi. 4r2at99 mL ____________ _ 1-------------------- 17, ELEVATION TOr:" OF H!JLE ---------------------!

7. THICKNESS OF BURDEN 0.0 FT 18. TOTAL CORE RECOVERY FOR BORING 98%

8. DEPTH DRILLED INTO ROOK 0.0 FT ----------' 1ll. SIGNATURE OF GEOLOGIST IBRAHIM DREMALI

S. TOTAL DEPTH OF HOLE19.0' FT

ELEV.

-34.4

-35.3

-37.6

-41.1

-53.4

DEPTH

0 z w

0 .·'.

1-8- 2-::~

3•:.-...

CLASSIFICATION OF MATERIALS

(Description)

CORE

REC

REMARKS

SAND, fine-grained, trace shell hash, Gray SISampte #1 Depth= 0.5' (5Y-6/1) (SP) l--+---1 n~~l!?ft 0.63 phi sorting fine to medium-grained, Utile shell hash, Gray (5Y-6/1) (SP) from -34.1'\o -35.4' 2

Sample #2 Depth c 2.0'

0.39 mm~ 1.34 phi sor1ing 1.08% sin

4~ __ ._· .• ·:_.·.-. ffne-grained, trnce shell hash, Gray (5Y-6/1) = .· (SP) from -35.4' to -39.9' 3 Sample #3, Depth= 4.0'

0.25 mfl)• 0.74 phi sor1ing 1.21% son

5~ .:;:·~>:-:.

6.;; .:- -.-.::.

7 ~f<> .: fine to medium-grained, lillie shell hash, Gray ;---,_-._4 -t 5'7'~m~'1 ?-t'11'h'hi ga~'tng

· · ... - (5Y-6/1) (SP) from -39.9' lo -41.2' , 1.08% si~

8~t:: .. :-·.:

9~ :::::_:::_:

fine-grained, trace shell hash, Gray (5Y-6/1) (SP) -41 .2' to -52.2'

End of Boring

Sample #5 Depth= 9.0'

0.32 mm. 0.95 phi sor1ing 1.07% sin

Sample #6, Depth= 14.0'

0.20 mm. 0.55 phi sor1ing 1.68% silt

Note: Soils are classified in accordance wHh the Unlfoed Soils Classlftca!ion system.

--'I ~OLE NUMBER·--

Palm Beach County SPP Delray Beach Segment

SECTION 00 31 32 21

3.8

8.0

9.8

17.4

-36.1

-40.3

-42.1

-49.7

Sample #1, Depth = 1.9' Mean (mm): 0.24, Phi Sorting: 0.82 Fines (230): 0.75% (SP)

Sample #2, Depth = 5.9' Mean (mm): 0.26, Phi Sorting: 0.90 Fines (230): 0.92% (SW)

Sample #3, Depth = 8.9' Mean (mm): 0.39, Phi Sorting: 1.45 Fines (230): 0.58% (SW)

Sample #4, Depth = 13.5' Mean (mm): 0.23, Phi Sorting: 0.65 Fines (230): 1.24% (SP)

SAND, fine grained, quartz-carbonate, trace shell fragments, trace shell hash, trace silt, shell fragments up to 0.25", gray (N-5/0), (SP).

SAND, fine grained, quartz-carbonate, trace shell fragments, trace shell hash, trace silt, shell fragments up to (0.25"x0.5"), gray (N-5/0), (SW).

SAND, fine grained, quartz-carbonate, little shell hash, trace shell fragments, trace silt, shell fragments up to 0.5", 1.0" whole shell @ 8.9', (1.5"x2.0") coral @ 9.4', gray (N-5/0), (SW).

SAND, fine grained, quartz-carbonate, trace shell fragments, trace shell hash, trace silt, shell fragments up to (0.25"x0.5"), 0.5" shell fragment @ 11.7', Expansion within core = 1.1', Bit Sample from 17.3' to 17.4', gray (N-5/0), (SP).

End of Boring

Florida State Plane East

COMPLETED

16.3 Ft.

STARTED

APTIM

X = 968,108 Y = 786,615

-32.3

VERTICALHORIZONTAL

Patrick Bryce

DRILLING LOG

0.0

NAD 1983

1. PROJECT

03-26-19 08:04

17.4 Ft.

Kristina McCoy, P.G.

10. COORDINATE SYSTEM/DATUM

11. MANUFACTURER'S DESIGNATION OF DRILL

DISTURBED UNDISTURBED (UD)

18. SIGNATURE AND TITLE OF INSPECTOR

14. ELEVATION GROUND WATER

15. DATE BORING

VERTICAL

INCLINED

0.0 Ft.

8. TOTAL DEPTH OF BORING

DBVC-19-01

AUTO HAMMER

MANUAL HAMMER

NAVD 88

APTIM SEAS VC-700 Vibracore

9. SIZE AND TYPE OF BIT

12. TOTAL SAMPLES

13. TOTAL NUMBER CORE BOXES

DEG. FROM

VERTICAL

BEARING5. DIRECTION OF BORING

4. NAME OF DRILLER

3. DRILLING AGENCY

2. BORING DESIGNATION

0.0 Ft.6. THICKNESS OF OVERBURDEN

CONTRACTOR FILE NO.

7. DEPTH DRILLED INTO ROCK

03-26-19 08:08

3.0 In.

-32.3 Ft.

DIVISION INSTALLATION

16. ELEVATION TOP OF BORING

17. TOTAL RECOVERY FOR BORING

LOCATION COORDINATES (ft)

Delray Beach Sand Search Delray Beach, FL

L E

G E

N D

SHEET 1

OF 1 SHEETS

REC.

Boring Designation

REMARKSDEPTH

(ft)

B O

X O

R S

A M

P L

E

CLASSIFICATION OF MATERIALS

Depths and elevations based on measured values

ELEV.

(ft)

DBVC-19-01

JUN 04

SAJ FORM 1836

D E

LR

A

Y _B

E A

C H

_2

9_ V

IB

R

A C

O R

E S

_1 _T

O _2

5_ R

E P

A

IR

E D

.G P

J

2/ 5/

Palm Beach County SPP Delray Beach Segment

SECTION 00 31 32 22

6.4

14.6

15.8

-49.5

-57.7

-58.9

Sample #1, Depth = 3.2' Mean (mm): 0.17, Phi Sorting: 0.51 Fines (230): 1.09% (SP)

Sample #2, Depth = 10.5' Mean (mm): 0.17, Phi Sorting: 0.55 Fines (230): 2.37% (SP)

Sample #3, Depth = 15.2' Mean (mm): 0.18, Phi Sorting: 0.72 Fines (230): 1.71% (SP)

SAND, fine grained, quartz-carbonate, trace shell fragments, trace shell hash, trace silt, shell fragments up to 0.25", (0.25"x0.5") coral @ 5.5', dark gray (N-4/0), (SP).

SAND, fine grained, quartz-carbonate, trace shell fragments, trace shell hash, trace silt, trace whole shell, shells up to 0.5", (0.5"x1.0") shell fragment @ 11.9', dark gray (N-4/0), (SP).

SAND, fine grained, quartz-carbonate, little shell hash, trace shell fragments, trace silt, shell fragments up to 0.5", 2 (1.0") whole shells and (0.25"x0.75") worm tube @ 14.7', Expansion within core = 1.3', gray (N-5/0), (SP).

End of Boring

Florida State Plane East

COMPLETED

14.5 Ft.

STARTED

APTIM

X = 968,707 Y = 785,177

-43.1

VERTICALHORIZONTAL

Patrick Bryce

DRILLING LOG

0.0

NAD 1983

1. PROJECT

03-26-19 13:45

15.8 Ft.

Kristina McCoy, P.G.

10. COORDINATE SYSTEM/DATUM

11. MANUFACTURER'S DESIGNATION OF DRILL

DISTURBED UNDISTURBED (UD)

18. SIGNATURE AND TITLE OF INSPECTOR

14. ELEVATION GROUND WATER

15. DATE BORING

VERTICAL

INCLINED

0.0 Ft.

8. TOTAL DEPTH OF BORING

DBVC-19-02

AUTO HAMMER

MANUAL HAMMER

NAVD 88

APTIM SEAS VC-700 Vibracore

9. SIZE AND TYPE OF BIT

12. TOTAL SAMPLES

13. TOTAL NUMBER CORE BOXES

DEG. FROM

VERTICAL

BEARING5. DIRECTION OF BORING

4. NAME OF DRILLER

3. DRILLING AGENCY

2. BORING DESIGNATION

0.0 Ft.6. THICKNESS OF OVERBURDEN

CONTRACTOR FILE NO.

7. DEPTH DRILLED INTO ROCK

03-26-19 13:49

3.0 In.

-43.1 Ft.

DIVISION INSTALLATION

16. ELEVATION TOP OF BORING

17. TOTAL RECOVERY FOR BORING

LOCATION COORDINATES (ft)

Delray Beach Sand Search Delray Beach, FL

L E

G E

N D

SHEET 1

OF 1 SHEETS

REC.

Boring Designation

REMARKSDEPTH

(ft)

B O

X O

R S

A M

P L

E

CLASSIFICATION OF MATERIALS

Depths and elevations based on measured values

ELEV.

(ft)

DBVC-19-02

JUN 04

SAJ FORM 1836

D E

LR

A

Y _B

E A

C H

_2

9_ V

IB

R

A C

O R

E S

_1 _T

O _2

5_ R

E P

A

IR

E D

.G P

J

2/ 5/

Palm Beach County SPP Delray Beach Segment

SECTION 00 31 32 23

4.6

9.5

18.3

20.0

-34.6

-39.5

-48.3

-50.0

Sample #1, Depth = 2.3' Mean (mm): 0.33, Phi Sorting: 1.41 Fines (230): 0.78% (SW)

Sample #2, Depth = 7.0' Mean (mm): 0.22, Phi Sorting: 0.68 Fines (230): 1.18% (SP)

Sample #3, Depth = 13.9' Mean (mm): 0.27, Phi Sorting: 0.82 Fines (230): 0.94% (SP)

SAND, fine grained, quartz-carbonate, trace shell fragments, trace shell hash, trace silt, trace whole shell, shells up to 0.75", (1.0"x1.25") shell fragment @ 3.0', (1.0"x1.75") and 1.0" shell fragments @ 4.5', 1.0" rock @

4.5', dark gray (N-4/0), (SW).

SAND, fine grained, quartz-carbonate, trace shell fragments, trace shell hash, trace silt, shell fragments up to (0.25"x0.5"), dark gray (N-4/0), (SP).

SAND, fine grained, quartz-carbonate, little shell hash, trace shell fragments, trace silt, trace whole shell, shell fragments up to (0.25"x0.5"), whole shells up to 0.5", 1.5" some shell hash pocket @ 13.3', dark gray (N-4/0), (SP).

No Recovery.

End of Boring

Florida State Plane East

COMPLETED

20.0 Ft.

STARTED

APTIM

X = 967,527 Y = 784,438

-30.0

VERTICALHORIZONTAL

Patrick Bryce

DRILLING LOG

0.0

NAD 1983

1. PROJECT

03-26-19 18:27

18.3 Ft.

Kristina McCoy, P.G.

10. COORDINATE SYSTEM/DATUM

11. MANUFACTURER'S DESIGNATION OF DRILL

DISTURBED UNDISTURBED (UD)

18. SIGNATURE AND TITLE OF INSPECTOR

14. ELEVATION GROUND WATER

15. DATE BORING

VERTICAL

INCLINED

0.0 Ft.

8. TOTAL DEPTH OF BORING

DBVC-19-03

AUTO HAMMER

MANUAL HAMMER

NAVD 88

APTIM SEAS VC-700 Vibracore

9. SIZE AND TYPE OF BIT

12. TOTAL SAMPLES

13. TOTAL NUMBER CORE BOXES

DEG. FROM

VERTICAL

BEARING5. DIRECTION OF BORING

4. NAME OF DRILLER

3. DRILLING AGENCY

2. BORING DESIGNATION

0.0 Ft.6. THICKNESS OF OVERBURDEN

CONTRACTOR FILE NO.

7. DEPTH DRILLED INTO ROCK

03-26-19 18:30

3.0 In.

-30.0 Ft.

DIVISION INSTALLATION

16. ELEVATION TOP OF BORING

17. TOTAL RECOVERY FOR BORING

LOCATION COORDINATES (ft)

Delray Beach Sand Search Delray Beach, FL

L E

G E

N D

SHEET 1

OF 1 SHEETS

REC.

Boring Designation

REMARKSDEPTH

(ft)

B O

X O

R S

A M

P L

E

CLASSIFICATION OF MATERIALS

Depths and elevations based on measured values

ELEV.

(ft)

DBVC-19-03

JUN 04

SAJ FORM 1836

D E

LR

A

Y _B

E A

C H

_2

9_ V

IB

R

A C

O R

E S

_1 _T

O _2

5_ R

E P

A

IR

E D

.G P

J

2/ 5/

Palm Beach County SPP Delray Beach Segment

SECTION 00 31 32 24

5.0

17.0

19.5

-56.0

-68.0

-70.5

Sample #1, Depth = 2.5' Mean (mm): 0.17, Phi Sorting: 0.46 Fines (230): 1.26% (SP)

Sample #2, Depth = 9.0' Mean (mm): 0.17, Phi Sorting: 0.52 Fines (230): 1.44% (SP)

Sample #3, Depth = 13.0' Mean (mm): 0.19, Phi Sorting: 0.85 Fines (230): 2.85% (SP)

SAND, fine grained, quartz-carbonate, trace shell fragments, trace shell hash, trace silt, shell fragments up to 0.25", (0.75"x2.0") whole shell

@ 0.8', (0.25"x0.5") coral @ 3.0' and 4.0', (0.5"x1.0") coral @ 4.0', dark gray (N-4/0), (SP).

SAND, fine grained, quartz-carbonate, trace shell fragments, trace shell hash, trace silt, trace whole shell, shells up to (0.5"x0.75"), 1.5" shell fragment @ 5.9', (1.5"x3.0") coral @ 7.5', (0.5"x0.75") coral @ 7.9', 1.0" whole shell @

13.4', (1.0"x1.5") coral @ 14.8', 2.0" shell fragment @ 15.0', dark gray (N-4/0), (SP).

No Recovery.

End of Boring

Florida State Plane East

COMPLETED

19.5 Ft.

STARTED

APTIM

X = 968,540 Y = 781,924

-51.0

VERTICALHORIZONTAL

Patrick Bryce

DRILLING LOG

0.0

NAD 1983

1. PROJECT

03-27-19 09:03

17 Ft.

Kristina McCoy, P.G.

10. COORDINATE SYSTEM/DATUM

11. MANUFACTURER'S DESIGNATION OF DRILL

DISTURBED UNDISTURBED (UD)

18. SIGNATURE AND TITLE OF INSPECTOR

14. ELEVATION GROUND WATER

15. DATE BORING

VERTICAL

INCLINED

0.0 Ft.

8. TOTAL DEPTH OF BORING

DBVC-19-04

AUTO HAMMER

MANUAL HAMMER

NAVD 88

APTIM SEAS VC-700 Vibracore

9. SIZE AND TYPE OF BIT

12. TOTAL SAMPLES

13. TOTAL NUMBER CORE BOXES

DEG. FROM

VERTICAL

BEARING5. DIRECTION OF BORING

4. NAME OF DRILLER

3. DRILLING AGENCY

2. BORING DESIGNATION

0.0 Ft.6. THICKNESS OF OVERBURDEN

CONTRACTOR FILE NO.

7. DEPTH DRILLED INTO ROCK

03-27-19 09:11

3.0 In.

-51.0 Ft.

DIVISION INSTALLATION

16. ELEVATION TOP OF BORING

17. TOTAL RECOVERY FOR BORING

LOCATION COORDINATES (ft)

Delray Beach Sand Search Delray Beach, FL

L E

G E

N D

SHEET 1

OF 1 SHEETS

REC.

Boring Designation

REMARKSDEPTH

(ft)

B O

X O

R S

A M

P L

E

CLASSIFICATION OF MATERIALS

Depths and elevations based on measured values

ELEV.

(ft)

DBVC-19-04

JUN 04

SAJ FORM 1836

D E

LR

A

Y _B

E A

C H

_2

9_ V

IB

R

A C

O R

E S

_1 _T

O _2

5_ R

E P

A

IR

E D

.G P

J

2/ 5/

Palm Beach County SPP Delray Beach Segment

SECTION 00 31 32 25

4.0

17.9

19.7

-37.7

-51.6

-53.4

Sample #1, Depth = 2.0' Mean (mm): 0.31, Phi Sorting: 1.04 Fines (230): 1.23% (SW)

Sample #2, Depth = 8.0' Mean (mm): 0.23, Phi Sorting: 0.61 Fines (230): 1.10% (SP)

Sample #3, Depth = 13.0' Mean (mm): 0.25, Phi Sorting: 0.69 Fines (230): 1.21% (SP)

SAND, fine grained, quartz-carbonate, little shell hash, trace shell fragments, trace silt, trace whole shell, shells up to 0.5", (0.75"x1.25") shell fragment @ 3.9', (1.0"x1.75") shell fragment @

2.0', gray (N-5/0), (SW).

SAND, fine grained, quartz-carbonate, trace shell fragments, trace shell hash, trace silt, trace whole shell, shells up to 0.5", Bit Sample from 17.6' to 17.9', gray (N-5/0), (SP).

No Recovery.

End of Boring

Florida State Plane East

COMPLETED

19.7 Ft.

STARTED

APTIM

X = 966,951 Y = 779,457

-33.7

VERTICALHORIZONTAL

Patrick Bryce

DRILLING LOG

0.0

NAD 1983

1. PROJECT

03-27-19 10:46

17.9 Ft.

Kristina McCoy, P.G.

10. COORDINATE SYSTEM/DATUM

11. MANUFACTURER'S DESIGNATION OF DRILL

DISTURBED UNDISTURBED (UD)

18. SIGNATURE AND TITLE OF INSPECTOR

14. ELEVATION GROUND WATER

15. DATE BORING

VERTICAL

INCLINED

0.0 Ft.

8. TOTAL DEPTH OF BORING

DBVC-19-05

AUTO HAMMER

MANUAL HAMMER

NAVD 88

APTIM SEAS VC-700 Vibracore

9. SIZE AND TYPE OF BIT

12. TOTAL SAMPLES

13. TOTAL NUMBER CORE BOXES

DEG. FROM

VERTICAL

BEARING5. DIRECTION OF BORING

4. NAME OF DRILLER

3. DRILLING AGENCY

2. BORING DESIGNATION

0.0 Ft.6. THICKNESS OF OVERBURDEN

CONTRACTOR FILE NO.

7. DEPTH DRILLED INTO ROCK

03-27-19 10:50

3.0 In.

-33.7 Ft.

DIVISION INSTALLATION

16. ELEVATION TOP OF BORING

17. TOTAL RECOVERY FOR BORING

LOCATION COORDINATES (ft)

Delray Beach Sand Search Delray Beach, FL

L E

G E

N D

SHEET 1

OF 1 SHEETS

REC.

Boring Designation

REMARKSDEPTH

(ft)

B O

X O

R S

A M

P L

E

CLASSIFICATION OF MATERIALS

Depths and elevations based on measured values

ELEV.

(ft)

DBVC-19-05

JUN 04

SAJ FORM 1836

D E

LR

A

Y _B

E A

C H

_2

9_ V

IB

R

A C

O R

E S

_1 _T

O _2

5_ R

E P

A

IR

E D

.G P

J

2/ 5/

Palm Beach County SPP Delray Beach Segment

SECTION 00 31 32 26

1.3

2.1

2.8

3.6

6.8

7.6

8.3

17.6

19.5

-50.1

-50.9

-51.6

-52.4

-55.6

-56.4

-57.1

-66.4

-68.3

Sample #1, Depth = 0.6' Mean (mm): 0.23, Phi Sorting: 0.73 Fines (230): 1.38% (SP) Sample #2, Depth = 1.7' Mean (mm): 0.23, Phi Sorting: 0.78 Fines (230): 1.44% (SP) Sample #3, Depth = 2.5' Mean (mm): 0.29, Phi Sorting: 1.05 Fines (230): 1.15% (SW)

Sample #4, Depth = 5.2' Mean (mm): 0.23, Phi Sorting: 0.71 Fines (230): 1.71% (SP)

Sample #5, Depth = 7.2' Mean (mm): 0.48, Phi Sorting: 1.09 Fines (230): 0.69% (SW)

Sample #6, Depth = 13.0' Mean (mm): 0.20, Phi Sorting: 0.64 Fines (230): 1.44% (SP)

SAND, fine grained, quartz-carbonate, trace shell fragments, trace shell hash, trace silt, trace whole shell, shell fragments up to (0.25"x0.5"), whole shells up to 0.25", 0.0' to 0.2' top of core sample collected separately, dark gray (N-4/0), (SP).

SAND, fine grained, quartz-carbonate, little shell hash, trace shell fragments, trace silt, trace whole shell, shells up to 0.5", dark gray (N-4/0), (SP).

SAND, fine grained, quartz-carbonate, some shell hash, trace shell fragments, trace silt, trace whole shell, shells up to 0.75", (1.0"x1.25") whole shell @ 2.7', dark gray

(N-4/0), (SW).

SAND, fine grained, quartz-carbonate, little shell hash, trace shell fragments, trace silt, trace whole shell, shells up to 0.5", dark gray (N-4/0), (SP).

SAND, fine to medium grained, quartz-carbonate, little shell hash, trace shell fragments, trace silt, trace whole shell, shells up to 0.5", dark gray (N-4/0), (SP).

Shelly SAND, fine to medium grained, quartz-carbonate, shell component is shell hash, trace shell fragments up to (0.25"x0.5"), dark gray (N-4/0), (SW).

SAND, fine grained, quartz-carbonate, little shell hash, trace shell fragments, trace silt, trace whole shell, shells up to 0.5", dark gray (N-4/0), (SP).

SAND, fine grained, quartz-carbonate, trace shell fragments, trace shell hash, trace silt, trace whole shell, shells up to 0.5", (0.5"x1.0") shell fragments @ 11.9' and 12.4', dark gray

(N-4/0), (SP).

No Recovery.

End of Boring

Florida State Plane East

COMPLETED

19.5 Ft.

STARTED

APTIM

X = 966,976 Y = 775,845

-48.8

VERTICALHORIZONTAL

Patrick Bryce

DRILLING LOG

0.0

NAD 1983

1. PROJECT

03-27-19 12:46

17.6 Ft.

Kristina McCoy, P.G.

10. COORDINATE SYSTEM/DATUM

11. MANUFACTURER'S DESIGNATION OF DRILL

DISTURBED UNDISTURBED (UD)

18. SIGNATURE AND TITLE OF INSPECTOR

14. ELEVATION GROUND WATER

15. DATE BORING

VERTICAL

INCLINED

0.0 Ft.

8. TOTAL DEPTH OF BORING

DBVC-19-06

AUTO HAMMER

MANUAL HAMMER

NAVD 88

APTIM SEAS VC-700 Vibracore

9. SIZE AND TYPE OF BIT

12. TOTAL SAMPLES

13. TOTAL NUMBER CORE BOXES

DEG. FROM

VERTICAL

BEARING5. DIRECTION OF BORING

4. NAME OF DRILLER

3. DRILLING AGENCY

2. BORING DESIGNATION

0.0 Ft.6. THICKNESS OF OVERBURDEN

CONTRACTOR FILE NO.

7. DEPTH DRILLED INTO ROCK

03-27-19 12:50

3.0 In.

-48.8 Ft.

DIVISION INSTALLATION

16. ELEVATION TOP OF BORING

17. TOTAL RECOVERY FOR BORING

LOCATION COORDINATES (ft)

Delray Beach Sand Search Delray Beach, FL

L E

G E

N D

SHEET 1

OF 1 SHEETS

REC.

Boring Designation

REMARKSDEPTH

(ft)

B O

X O

R S

A M

P L

E

CLASSIFICATION OF MATERIALS

Depths and elevations based on measured values

ELEV.

(ft)

DBVC-19-06

JUN 04

SAJ FORM 1836

D E

LR

A

Y _B

E A

C H

_2

9_ V

IB

R

A C

O R

E S

_1 _T

O _2

5_ R

E P

A

IR

E D

.G P

J

2/ 5/

Palm Beach County SPP Delray Beach Segment

SECTION 00 31 32 27

0.5

4.8

12.2

13.0

-37.3

-41.6

-49.0

-49.8

Sample #1, Depth = 0.2' Mean (mm): 0.30, Phi Sorting: 1.01 Fines (230): 0.93% (SW)

Sample #2, Depth = 2.6' Mean (mm): 0.24, Phi Sorting: 0.74 Fines (230): 1.04% (SP)

Sample #3, Depth = 8.5' Mean (mm): 0.25, Phi Sorting: 0.74 Fines (230): 1.13% (SP)

SAND, fine grained, quartz-carbonate, some shell hash, trace shell fragments, trace silt, shell fragments up to 0.5", gray (N-5/0), (SW).

SAND, fine grained, quartz-carbonate, trace shell fragments, trace shell hash, trace silt, trace whole shell, shells up to 0.5", (1.5"x2.0") shell fragment @ 0.8', 2.0" some shell hash pockets @ 1.3' and 4.6', (0.5"x1.25") shell fragment @ 3.8', gray (N-5/0), (SP).

SAND, fine grained, quartz-carbonate, trace shell fragments, trace shell hash, trace silt, shell fragments up to (0.25"x0.5"), 1.0" whole shell @ 6.0', 0.5" whole shells @ 7.9', 8.1' and 9.1', dark gray (N-4/0), (SP).

No Recovery.

End of Boring

Florida State Plane East

COMPLETED

13.0 Ft.

STARTED

APTIM

X = 966,686 Y = 777,496

-36.8

VERTICALHORIZONTAL

Patrick Bryce

DRILLING LOG

0.0

NAD 1983

1. PROJECT

04-01-19 16:16

12.2 Ft.

Kristina McCoy, P.G.

10. COORDINATE SYSTEM/DATUM

11. MANUFACTURER'S DESIGNATION OF DRILL

DISTURBED UNDISTURBED (UD)

18. SIGNATURE AND TITLE OF INSPECTOR

14. ELEVATION GROUND WATER

15. DATE BORING

VERTICAL

INCLINED

0.0 Ft.

8. TOTAL DEPTH OF BORING

DBVC-19-17

AUTO HAMMER

MANUAL HAMMER

NAVD 88

APTIM SEAS VC-700 Vibracore

9. SIZE AND TYPE OF BIT

12. TOTAL SAMPLES

13. TOTAL NUMBER CORE BOXES

DEG. FROM

VERTICAL

BEARING5. DIRECTION OF BORING

4. NAME OF DRILLER

3. DRILLING AGENCY

2. BORING DESIGNATION

0.0 Ft.6. THICKNESS OF OVERBURDEN

CONTRACTOR FILE NO.

7. DEPTH DRILLED INTO ROCK

04-01-19 16:23

3.0 In.

-36.8 Ft.

DIVISION INSTALLATION

16. ELEVATION TOP OF BORING

17. TOTAL RECOVERY FOR BORING

LOCATION COORDINATES (ft)

Delray Beach Sand Search Delray Beach, FL

L E

G E

N D

SHEET 1

OF 1 SHEETS

REC.

Boring Designation

REMARKSDEPTH

(ft)

B O

X O

R S

A M

P L

E

CLASSIFICATION OF MATERIALS

Depths and elevations based on measured values

ELEV.

(ft)

DBVC-19-17

JUN 04

SAJ FORM 1836

D E

LR

A

Y _B

E A

C H

_2

9_ V

IB

R

A C

O R

E S

_1 _T

O _2

5_ R

E P

A

IR

E D

.G P

J

2/ 5/

Palm Beach County SPP Delray Beach Segment

SECTION 00 31 32 28

1.6 2.1

6.0

6.6

11.7

12.5

-51.3 -51.8

-55.7

-56.3

-61.4

-62.2

Sample #1, Depth = 0.8' Mean (mm): 0.18, Phi Sorting: 0.47 Fines (230): 1.43% (SP) Sample #2, Depth = 1.8' Mean (mm): 0.36, Phi Sorting: 1.37 Fines (230): 1.03% (SW)

Sample #3, Depth = 4.1' Mean (mm): 0.24, Phi Sorting: 0.70 Fines (230): 1.31% (SP)

SAND, fine grained, quartz-carbonate, trace shell hash, trace silt, dark gray (N-4/0), (SP).

SAND, fine grained, quartz-carbonate, some shell hash, trace shell fragments, trace silt, shell fragments up to (0.25"x0.5"), dark gray (N-4/0), (SW).

SAND, fine grained, quartz-carbonate, trace shell fragments, trace shell hash, trace silt, shell fragments up to (0.25"x0.5"), dark gray (N-4/0), (SP).

SAND, fine grained, quartz-carbonate, some shell hash, trace shell fragments, trace silt, shell fragments up to (0.25"x0.5"), dark gray (N-4/0), (SW).

SAND, fine grained, quartz-carbonate, trace shell fragments, trace shell hash, trace silt, shell fragments up to (0.25"x0.5"), dark gray (N-4/0), (SP).

No Recovery.

End of Boring

Florida State Plane East

COMPLETED

12.5 Ft.

STARTED

APTIM

X = 967,385 Y = 778,880

-49.7

VERTICALHORIZONTAL

Patrick Bryce

DRILLING LOG

0.0

NAD 1983

1. PROJECT

04-01-19 19:01

11.7 Ft.

Kristina McCoy, P.G.

10. COORDINATE SYSTEM/DATUM

11. MANUFACTURER'S DESIGNATION OF DRILL

DISTURBED UNDISTURBED (UD)

18. SIGNATURE AND TITLE OF INSPECTOR

14. ELEVATION GROUND WATER

15. DATE BORING

VERTICAL

INCLINED

0.0 Ft.

8. TOTAL DEPTH OF BORING

DBVC-19-18

AUTO HAMMER

MANUAL HAMMER

NAVD 88

APTIM SEAS VC-700 Vibracore

9. SIZE AND TYPE OF BIT

12. TOTAL SAMPLES

13. TOTAL NUMBER CORE BOXES

DEG. FROM

VERTICAL

BEARING5. DIRECTION OF BORING

4. NAME OF DRILLER

3. DRILLING AGENCY

2. BORING DESIGNATION

0.0 Ft.6. THICKNESS OF OVERBURDEN

CONTRACTOR FILE NO.

7. DEPTH DRILLED INTO ROCK

04-01-19 19:10

3.0 In.

-49.7 Ft.

DIVISION INSTALLATION

16. ELEVATION TOP OF BORING

17. TOTAL RECOVERY FOR BORING

LOCATION COORDINATES (ft)

Delray Beach Sand Search Delray Beach, FL

L E

G E

N D

SHEET 1

OF 1 SHEETS

REC.

Boring Designation

REMARKSDEPTH

(ft)

B O

X O

R S

A M

P L

E

CLASSIFICATION OF MATERIALS

Depths and elevations based on measured values

ELEV.

(ft)

DBVC-19-18

JUN 04

SAJ FORM 1836

D E

LR

A

Y _B

E A

C H

_2

9_ V

IB

R

A C

O R

E S

_1 _T

O _2

5_ R

E P

A

IR

E D

.G P

J

2/ 5/

Palm Beach County SPP Delray Beach Segment

SECTION 00 31 32 29

2.9

13.0

-49.3

-59.4

Sample #1, Depth = 1.4' Mean (mm): 0.17, Phi Sorting: 0.52 Fines (230): 1.49% (SP)

Sample #2, Depth = 8.0' Mean (mm): 0.17, Phi Sorting: 0.47 Fines (230): 1.25% (SP)

SAND, fine grained, quartz-carbonate, trace shell fragments, trace shell hash, trace silt, shell fragments up to 0.25", (0.25"x1.0") whole shell

@ 1.0', dark gray (N-4/0), (SP).

SAND, fine grained, quartz-carbonate, trace shell fragments, trace shell hash, trace silt, trace whole shell, shells up to 0.5", (1.0"x0.5") shell fragments @ 3.4' and 9.5', (0.75"x1.0") coral @ 6.1', (0.5"x0.75") shell fragment @ 9.2', (1.0"x1.25") coral @ 9.7', Expansion within core

= 0.5', dark gray (N-4/0), (SP).

End of Boring

Florida State Plane East

COMPLETED

12.5 Ft.

STARTED

APTIM

X = 968,987 Y = 785,849

-46.4

VERTICALHORIZONTAL

Patrick Bryce

DRILLING LOG

0.0

NAD 1983

1. PROJECT

04-02-19 09:28

13 Ft.

Kristina McCoy, P.G.

10. COORDINATE SYSTEM/DATUM

11. MANUFACTURER'S DESIGNATION OF DRILL

DISTURBED UNDISTURBED (UD)

18. SIGNATURE AND TITLE OF INSPECTOR

14. ELEVATION GROUND WATER

15. DATE BORING

VERTICAL

INCLINED

0.0 Ft.

8. TOTAL DEPTH OF BORING

DBVC-19-19

AUTO HAMMER

MANUAL HAMMER

NAVD 88

APTIM SEAS VC-700 Vibracore

9. SIZE AND TYPE OF BIT

12. TOTAL SAMPLES

13. TOTAL NUMBER CORE BOXES

DEG. FROM

VERTICAL

BEARING5. DIRECTION OF BORING

4. NAME OF DRILLER

3. DRILLING AGENCY

2. BORING DESIGNATION

0.0 Ft.6. THICKNESS OF OVERBURDEN

CONTRACTOR FILE NO.

7. DEPTH DRILLED INTO ROCK

04-02-19 09:38

3.0 In.

-46.4 Ft.

DIVISION INSTALLATION

16. ELEVATION TOP OF BORING

17. TOTAL RECOVERY FOR BORING

LOCATION COORDINATES (ft)

Delray Beach Sand Search Delray Beach, FL

L E

G E

N D

SHEET 1

OF 1 SHEETS

REC.

Boring Designation

REMARKSDEPTH

(ft)

B O

X O

R S

A M

P L

E

CLASSIFICATION OF MATERIALS

Depths and elevations based on measured values

ELEV.

(ft)

DBVC-19-19

JUN 04

SAJ FORM 1836

D E

LR

A

Y _B

E A

C H

_2

9_ V

IB

R

A C

O R

E S

_1 _T

O _2

5_ R

E P

A

IR

E D

.G P

J

2/ 5/

Palm Beach County SPP Delray Beach Segment

SECTION 00 31 32 30

2.7

5.5

11.7

18.6

-35.0

-37.8

-44.0

-50.9

Sample #1, Depth = 1.3' Mean (mm): 0.22, Phi Sorting: 0.76 Fines (230): 1.22% (SP)

Sample #2, Depth = 4.1' Mean (mm): 0.34, Phi Sorting: 1.27 Fines (230): 1.18% (SW)

Sample #3, Depth = 8.6' Mean (mm): 0.31, Phi Sorting: 0.88 Fines (230): 0.89% (SW)

Sample #4, Depth = 15.2' Mean (mm): 0.19, Phi Sorting: 0.55 Fines (230): 1.26% (SP)

SAND, fine grained, quartz-carbonate, trace shell hash, trace silt, 0.5" shell fragment @ 2.4', gray (N-5/0), (SP).

SAND, fine grained, quartz-carbonate, some shell hash, trace shell fragments, trace silt, shell fragments up to (0.5"x0.75"), (0.5"x1.25") shell fragments @ 5.2' and 5.3', dark gray (N-4/0), (SW).

SAND, fine grained, quartz-carbonate, little shell hash, trace shell fragments, trace silt, shell fragments up to 0.5", (0.5"x1.0") shell fragment @ 6.5', (1.0"x1.5") shell fragment @ 11.1', dark gray (N-4/0), (SW).

SAND, fine grained, quartz-carbonate, trace shell fragments, trace shell hash, trace silt, shell fragments up to (0.25"x0.5"), Expansion within core = 1.6', dark gray (N-4/0), (SP).

End of Boring

Florida State Plane East

COMPLETED

17.0 Ft.

STARTED

APTIM

X = 968,007 Y = 785,832

-32.3

VERTICALHORIZONTAL

Patrick Bryce

DRILLING LOG

0.0

NAD 1983

1. PROJECT

04-10-19 14:46

18.6 Ft.

Kristina McCoy, P.G.

10. COORDINATE SYSTEM/DATUM

11. MANUFACTURER'S DESIGNATION OF DRILL

DISTURBED UNDISTURBED (UD)

18. SIGNATURE AND TITLE OF INSPECTOR

14. ELEVATION GROUND WATER

15. DATE BORING

VERTICAL

INCLINED

0.0 Ft.

8. TOTAL DEPTH OF BORING

DBVC-19-20

AUTO HAMMER

MANUAL HAMMER

NAVD 88

APTIM SEAS VC-700 Vibracore

9. SIZE AND TYPE OF BIT

12. TOTAL SAMPLES

13. TOTAL NUMBER CORE BOXES

DEG. FROM

VERTICAL

BEARING5. DIRECTION OF BORING

4. NAME OF DRILLER

3. DRILLING AGENCY

2. BORING DESIGNATION

0.0 Ft.6. THICKNESS OF OVERBURDEN

CONTRACTOR FILE NO.

7. DEPTH DRILLED INTO ROCK

04-10-19 14:51

3.0 In.

-32.3 Ft.

DIVISION INSTALLATION

16. ELEVATION TOP OF BORING

17. TOTAL RECOVERY FOR BORING

LOCATION COORDINATES (ft)

Delray Beach Sand Search Delray Beach, FL

L E

G E

N D

SHEET 1

OF 1 SHEETS

REC.

Boring Designation

REMARKSDEPTH

(ft)

B O

X O

R S

A M

P L

E

CLASSIFICATION OF MATERIALS

Depths and elevations based on measured values

ELEV.

(ft)

DBVC-19-20

JUN 04

SAJ FORM 1836

D E

LR

A

Y _B

E A

C H

_2

9_ V

IB

R

A C

O R

E S

_1 _T

O _2

5_ R

E P

A

IR

E D

.G P

J

2/ 5/

Palm Beach County SPP Delray Beach Segment

SECTION 00 31 32 31

5.5

7.9

14.5 14.7

-37.5

-39.9

-46.5 -46.7

Sample #1, Depth = 2.7' Mean (mm): 0.26, Phi Sorting: 0.89 Fines (230): 1.01% (SW)

Sample #2, Depth = 6.7' Mean (mm): 0.40, Phi Sorting: 1.26 Fines (230): 0.86% (SW)

Sample #3, Depth = 11.2' Mean (mm): 0.27, Phi Sorting: 0.84 Fines (230): 1.50% (SP)

SAND, fine grained, quartz-carbonate, trace shell fragments, trace shell hash, trace silt, trace whole shell, shells up to 0.5", gray (N-5/0), (SW).

Shelly SAND, fine to medium grained, quartz-carbonate, trace silt, shell components are shell hash, shell fragments up to (0.5"x0.75") and whole shells up to 0.5", 1.0" whole shell @ 6.9', (0.75"x1.25") whole shell @ 7.7', dark gray (N-4/0), (SW).

SAND, fine grained, quartz-carbonate, trace shell fragments, trace shell hash, trace silt, shell fragments up to 0.5", (0.5"x1.0") shell fragments @ 8.1' and 11.2', dark gray (N-4/0), (SP).

No Recovery.

End of Boring

Florida State Plane East

COMPLETED

14.7 Ft.

STARTED

APTIM

X = 967,643 Y = 783,663

-32.0

VERTICALHORIZONTAL

Patrick Bryce

DRILLING LOG

0.0

NAD 1983

1. PROJECT

04-02-19 14:54

14.5 Ft.

Kristina McCoy, P.G.

10. COORDINATE SYSTEM/DATUM

11. MANUFACTURER'S DESIGNATION OF DRILL

DISTURBED UNDISTURBED (UD)

18. SIGNATURE AND TITLE OF INSPECTOR

14. ELEVATION GROUND WATER

15. DATE BORING

VERTICAL

INCLINED

0.0 Ft.

8. TOTAL DEPTH OF BORING

DBVC-19-21

AUTO HAMMER

MANUAL HAMMER

NAVD 88

APTIM…