B.08.01_GDR-DMMA Files Anclote River Updated Dec 2020.pdf

SECTION 00 31 32.20

Geotechnical Data Report for

Anclote River

Maintenance Dredging

9-foot Project

Dredge Material Management Area

Pinellas and Pasco County, Florida

Prepared by

Geotechnical Branch

Engineering Division

Jacksonville District Corps of Engineers

23 December 2020

SECTION 00 31 32

GEOTECHNICAL DATA REPORT

Table of Contents

1 SCOPE

2 PROJECT BACKGROUND

3 CHARACTER OF MATERIALS

3.1 The Local AND REGIONAL Geology

3.2 Materials Encountered

4 DEFINITIONS

4.1 Definitions of Basic Terms

4.2 Current Logging Terms

4.3 Previous Logging Terms

4.4 Testing and Procedure Methods

5 GEOTECHNICAL DATA

5.1 Summary of Field Investigations

5.2 Boring Log Notes

5.3 Inspection of Recovered Materials

5.4 Boring Logs

5.5 Core Boring Investigation Report 2020

List of Tables

Table 1. Available Boring Data Table 2. Available Hand Auger Boring Data Table 3 Available Test Pit Data

List of Plates

Plate 1. Overview Map

Anclote River Dredging, 9-foot Project

00 31 32.20 Page 2

SECTION 00 31 32.20

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, test pits and hand auger borings.

The associated boring logs are presented in paragraph 5.4. 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.

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 Geotechnical Branch.

2 PROJECT BACKGROUND

The Anclote River Dredge Material Disposal Area (DMMA) is located in Northern Pinellas County near Tarpon Springs. This area serves as a disposal area for dredged material collected from the Anclote River located west of the project area. Recent dredge material has been removed from the DMMA, and the berms have been degraded. This project will rebuild the berms from existing on-site materials.

3 CHARACTER OF MATERIALS

3.1 THE LOCAL AND REGIONAL GEOLOGY

The geology of the Anclote River area in the vicinity of Tarpon Springs is comprised of an upper layer of Quaternary undifferentiated deposits, underlain by Pliocene sediments, which were deposited on the undulating surface of the Hawthorn Group.

The undifferentiated deposits are composed of loose, fine to medium quartz sands, silty sands, and silts with shell. The Pliocene deposits vary in thickness from a few to up to 40 feet. They are composed of semi-indurated soft to firm sands, silty sands, clayey sands, clays, and silts. These materials are interbedded with moderately weathered soft to hard sandstone, clayey limestone (marl), and hard-cemented silt.

3.2 MATERIALS ENCOUNTERED

The materials encountered were characterized from core borings, test pits and hand augers represented on Plate 1 and listed in Tables 1-3. Core borings CB-ARDA98-1 through CB- ARDA98-4 and the test pits were completed in 1998 before the initial construction of the DMMA.

The Hand Auger borings were completed in 2019. The boring logs from core borings CB- ARDA98-1 through CB-ARDA98-4, the hand auger borings, and test pits are included in paragraph 5.4. Three additional core borings were performed in November 2020. The geotechnical exploration report for those borings is included in paragraph 5.5. The report includes, boring logs, laboratory testing results and a description of the findings.

Fill material is the first materials to be encountered, which results from dredge material and the degrading of the berms. The fill material consists of fine grained quartz sand, sand with silt, loose density, trace organics, shell, and gravel to cobble size limestone. The percentage and distribution of the gravel to boulder size rock varies across the site and at depth. The depth of fill material across the site is unknown but is anticipated to vary. Debris may also be buried within the fill

Anclote River Dredging, 9-foot Project

00 31 32.20 Page 3 material, either from past construction project or illegal dumping. Debris of any size and length and can be composed of the following materials: metallic, wooden, masonry, cables, trash, etc.

The native subsurface materials primarily consist of sand, silty sand, silt, clay various amounts of shell fragments and organics. Limestone is also present. Descriptions of sand to gravel sized limestone or carbonate rock fragments on the logs from core borings CB-ARDA98-1 through CB- ARDA98-4 are representative of actual rock layers.

4 DEFINITIONS

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

4.1 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.

4.2 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.

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).

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00 31 32.20 Page 4

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.

4.3 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.

Anclote River Dredging, 9-foot Project

00 31 32.20 Page 5

4.4 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

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

Anclote River Dredging, 9-foot Project

00 31 32.20 Page 6

Test/Procedure Method 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

5 GEOTECHNICAL DATA

5.1 SUMMARY OF FIELD INVESTIGATIONS

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

Table 1. Available Boring Data

Designation State Plane, FL-West, NAD83

Project Location Available for Inspection X Y

CB-1 409936 1394860 DMMA

CB-2A 410078 1394640 DMMA

CB-2 410221 1394370 DMMA

CB-ARDA98-1 410251 1394365 DMMA

CB-ARDA98-2 409613 1394368 DMMA

CB-ARDA98-3 409608 1394807 DMMA

CB-ARDA98-4 410235 1394818 DMMA

* Coordinates presented correspond to the project coordinate system and datum

Anclote River Dredging, 9-foot Project

00 31 32.20 Page 7

Table 2. Available Hand Auger Boring Data

Designation State Plane, FL-West, NAD83 Project Location Available for Inspection X Y

HA-AR19-DMMA-1 409780 1394881 DMMA

HA-AR19-DMMA-2 410048 1394880 DMMA

HA-AR19-DMMA-3 410227 1394879 DMMA

HA-AR19-DMMA-4 409779 1394680 DMMA

HA-AR19-DMMA-5 409919 1394649 DMMA

HA-AR19-DMMA-6 409856 1394546 DMMA

HA-AR19-DMMA-7 409815 1394448 DMMA

HA-AR19-DMMA-8 409954 1394439 DMMA

HA-AR19-DMMA-9 410135 1394475 DMMA

HA-AR19-DMMA-10 410074 1394624 DMMA

Table 3 Available Test Pit Data

Designation State Plane, FL-West, NAD83

Project Location X Y

TP-ARDA98-1 410117 1394578 DMMA

TP-ARDA98-2 409707 1394536 DMMA

5.2 BORING LOG NOTES

Borings CB-ARDA98-1 to CB-ARDA98-4, CB-1, CB-2, and CB-2A were driven using the Standard Penetration Test (SPT) procedure with a 140 pound hammer with a 30-inch drop using a 2.0 foot split spoon (1 3/8-inch I.D. and 2-inch O.D.). Borings were advanced in 18-inch intervals, or until refusal was encountered. Refusal is defined as a total of 50 blows of the hammer within any 6-inch increment, a total of 100 blows within any 1-foot increment, or no observed advance of the sampler after 10 successive blows of the hammer.

Test pits TP-ARDA98-1 and TP-ARDA98-2 were excavated using a backhoe.

Borings HA-AR19-DMMA-1 to HA-AR19-DMMA-10 were sampled with a 3” hand auger.

5.3 INSPECTION OF RECOVERED MATERIALS

Discrete samples (4 jar samples) recovered from the hand auger borings marked with a checkmark in Table 2 are 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

Anclote River Dredging, 9-foot Project

00 31 32.20 Page 8 project geologist at (904) 232-3750 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.

00 31 32.20 Page 9

!H

!H

!H !H!H

!H !H

"J

"J

TP-ARDA98-2 TP-ARDA98-1

CB-2

CB-1

CB-2A

CB-ARDA98-4

CB-ARDA98-3

CB-ARDA98-2

HA-AR19-DMMA-9

HA-AR19-DMMA-8

HA-AR19-DMMA-7

HA-AR19-DMMA-6

HA-AR19-DMMA-5

HA-AR19-DMMA-4

HA-AR19-DMMA-3

HA-AR19-DMMA-2

HA-AR19-DMMA-1

CB-ARDA98-1

HA-AR19-DMMA-10

Dwn by:

Ckd by:

Dated:

DEPARTMENT OF THE ARMY

JACKSONVILLE DISTRICT, CORPS OF ENGINEERS

JACKSONVILLE, FLORIDA

PLATE NO.

1BUN

BUN

BUN

23Dec2020

Dsn by:

Locations of Field Investigations

Pinellas and Pasco County Anclote River Dredging

DMMA

Legend "J Test Pits !H Core Boring !> Hand Auger Borings

0 300 600150 Feet

TARPON

SPRINGS

CUT-8 CUT-9

CUT-7

5.4 BORING LOGS

Applicable boring logs are presented on the following pages.

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.

Anclote River Dredging, 9-foot Project

00 31 32.20 Page 11

12.5

11.0

9.5

8.0

6.5

5.0

3.5

2.0

0.5

-1.0

-2.5

WOH

SPT Sampler

SPT Sampler

SPT Sampler

SPT Sampler

SPT Sampler

SPT Sampler

SPT Sampler

SPT Sampler

SPT Sampler

SPT Sampler

NR

NR

NR

NR

NR

NR

NR

NR

NR

NR

SAND, poorly-graded, mostly fine-grained sand-sized quartz, trace organic matter, trace silt, dark tan (SP)

At El. 11.0 Ft., tan

12.512.5

-2.5

0.0

15.0

0.0

RQD

OR

UD

CLASSIFICATION OF MATERIALS %

REC.

L E

G E

N D

B O

X O

R S

A M

P L

E

REMARKS

N -V

A L

U E

B L

O W

S

.5

F T

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

CB-ARDA98-1

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

CB-ARDA98-1

4. NAME OF DRILLER

AUTO HAMMERLOCATION COORDINATES

NAD83

See Remarks

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

X = 410,251 Y = 1,394,365

NAVD88

CME-550

3.5 Ft.

N/A

Law Engineering and Environmental services

18.0 Ft.

Jacksonville District

08-07-98

South Atlantic

N/A

R. Swint/ R. Henry

Anclote River

DMMA

08-07-98

12.5 Ft.

Not Recorded

Jon Sink, Civil Engineer

SAJ FORM 1836

JUN 02

(Continued)

Anclote River Dredging, 9-foot Project

00 31 32.20 Page 12

-4.0

-5.5

-5.5

SPT Sampler

SPT Sampler

NR

NR

SAND, poorly-graded with clay, mostly fine-grained sand-sized quartz, few clay, tan

(SP-SC)

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. Borings were manually copied from GTGS database and entered into gINT.

Coordinates were converted to project datums.

4. Sample recovery was not recorded.

5. Rotary wash boring with drill mud.

6. Grouted 8/7/98.

140# hammer w/30" drop used with 2.0' split spoon (1-3/8" I.D. x 2" O.D.).

Abbreviations:

WOH = Weight of Hammer

NR = Not Recorded.

-5.5 18.0

INSTALLATION

LOCATION COORDINATES

COORDINATE SYSTEM/DATUMPROJECT HORIZONTAL

OFDRILLING LOG (Cont. Sheet)

ELEVATION TOP OF BORING

Boring Designation

Anclote River

12.5 Ft.

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

Jacksonville District

VERTICAL

SHEETS

SHEET

X = 410,251 Y = 1,394,365

CB-ARDA98-1

NAD83 NAVD88

RQD

OR

UD

CLASSIFICATION OF MATERIALS %

REC.

L E

G E

N D

B O

X O

R S

A M

P L

E

REMARKS

N -V

A L

U E

B L

O W

S

.5

F T

DEPTH

(ft)

ELEV.

(ft)

SAJ FORM 1836-A

JUN 02

Anclote River Dredging, 9-foot Project

00 31 32.20 Page 13

11.2

9.7

8.2

6.7

5.2

3.7

2.2

0.7

-0.8

-2.3

-3.8

SPT Sampler

SPT Sampler

SPT Sampler

SPT Sampler

SPT Sampler

SPT Sampler

SPT Sampler

SPT Sampler

SPT Sampler

SPT Sampler

NR

NR

NR

NR

NR

NR

NR

NR

NR

NR

SAND, poorly-graded with clay, mostly fine-grained sand-sized quartz, few clay, few fine to coarse gravel-sized limestone, dark tan (SP-SC)

SAND, poorly-graded, mostly fine-grained sand-sized quartz, trace silt, tan (SP)

SAND, poorly-graded with clay, mostly

11.211.2

9.7

-3.5

0.0

1.5

14.7

0.0

RQD

OR

UD

CLASSIFICATION OF MATERIALS %

REC.

L E

G E

N D

B O

X O

R S

A M

P L

E

REMARKS

N -V

A L

U E

B L

O W

S

.5

F T

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

CB-ARDA98-2

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

CB-ARDA98-2

4. NAME OF DRILLER

AUTO HAMMERLOCATION COORDINATES

NAD83

See Remarks

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

X = 409,613 Y = 1,394,368

NAVD88

CME-550

N/A

Law Engineering and Environmental services

18.0 Ft.

Jacksonville District

08-07-98

South Atlantic

N/A

R. Swint/ R. Henry

Anclote River

DMMA

08-07-98

11.2 Ft.

Not Recorded

Jon Sink, Civil Engineer

SAJ FORM 1836

JUN 02

(Continued)

Anclote River Dredging, 9-foot Project

00 31 32.20 Page 14

-5.3

-6.8

-6.8

SPT Sampler

SPT Sampler

NR

NR

fine-grained sand-sized quartz, few clay, dark tan (SP-SC) SAND, clayey, mostly fine-grained sand-sized quartz, dark tan (SC)

CLAY, lean, few fine to coarse gravel-sized limestone, tan to light tan (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. Borings were manually copied from GTGS database and entered into gINT.

Coordinates were converted to project datums.

4. Sample recovery was not recorded.

5. Rotary wash boring with drill mud.

6. Grouted 8/7/98.

140# hammer w/30" drop used with 2.0' split spoon (1-3/8" I.D. x 2" O.D.).

Abbreviations:

-4.3

-5.3

-6.8 18.0

15.5

16.5

INSTALLATION

LOCATION COORDINATES

COORDINATE SYSTEM/DATUMPROJECT HORIZONTAL

OFDRILLING LOG (Cont. Sheet)

ELEVATION TOP OF BORING

Boring Designation

Anclote River

11.2 Ft.

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

Jacksonville District

VERTICAL

SHEETS

SHEET

X = 409,613 Y = 1,394,368

CB-ARDA98-2

NAD83 NAVD88

RQD

OR

UD

CLASSIFICATION OF MATERIALS %

REC.

L E

G E

N D

B O

X O

R S

A M

P L

E

REMARKS

N -V

A L

U E

B L

O W

S

.5

F T

DEPTH

(ft)

ELEV.

(ft)

SAJ FORM 1836-A

JUN 02

Anclote River Dredging, 9-foot Project

00 31 32.20 Page 15

11.5

10.0

8.5

7.0

5.5

4.0

2.5

1.0

-0.5

-2.0

-3.5

SPT Sampler

SPT Sampler

SPT Sampler

SPT Sampler

SPT Sampler

SPT Sampler

SPT Sampler

SPT Sampler

SPT Sampler

SPT Sampler

NR

NR

NR

NR

NR

NR

NR

NR

NR

NR

SAND, poorly-graded with clay, mostly fine-grained sand-sized quartz, few clay, dark tan (SP-SC)

SAND, poorly-graded, mostly fine-grained sand-sized quartz, trace silt, tan and gray

(SP)

SAND, clayey, mostly fine-grained sand-sized quartz, tan (SC)

11.511.5

10.0

-0.5

0.0

1.5

12.0

0.0

RQD

OR

UD

CLASSIFICATION OF MATERIALS %

REC.

L E

G E

N D

B O

X O

R S

A M

P L

E

REMARKS

N -V

A L

U E

B L

O W

S

.5

F T

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

CB-ARDA98-3

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

CB-ARDA98-3

4. NAME OF DRILLER

AUTO HAMMERLOCATION COORDINATES

NAD83

See Remarks

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

X = 409,608 Y = 1,394,807

NAVD88

CME-550

2.5 Ft.

N/A

Law Engineering and Environmental services

18.0 Ft.

Jacksonville District

08-07-98

South Atlantic

N/A

R. Swint/ R. Henry

Anclote River

DMMA

08-07-98

11.5 Ft.

Not Recorded

Jon Sink, Civil Engineer

SAJ FORM 1836

JUN 02

(Continued)

Anclote River Dredging, 9-foot Project

00 31 32.20 Page 16

-5.0

-6.5

SPT Sampler

SPT Sampler

NR

NRCLAY, lean, ligh tan (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. Borings were manually copied from GTGS database and entered into gINT.

Coordinates were converted to project datums.

4. Sample recovery was not recorded.

5. Rotary wash boring with drill mud.

6. Grouted 8/7/98.

140# hammer w/30" drop used with 2.0' split spoon (1-3/8" I.D. x 2" O.D.).

Abbreviations:

-5.7

-6.5 18.0

17.2

INSTALLATION

LOCATION COORDINATES

COORDINATE SYSTEM/DATUMPROJECT HORIZONTAL

OFDRILLING LOG (Cont. Sheet)

ELEVATION TOP OF BORING

Boring Designation

Anclote River

11.5 Ft.

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

Jacksonville District

VERTICAL

SHEETS

SHEET

X = 409,608 Y = 1,394,807

CB-ARDA98-3

NAD83 NAVD88

RQD

OR

UD

CLASSIFICATION OF MATERIALS %

REC.

L E

G E

N D

B O

X O

R S

A M

P L

E

REMARKS

N -V

A L

U E

B L

O W

S

.5

F T

DEPTH

(ft)

ELEV.

(ft)

SAJ FORM 1836-A

JUN 02

Anclote River Dredging, 9-foot Project

00 31 32.20 Page 17

11.0

9.5

8.0

6.5

5.0

3.5

2.0

0.5

-1.0

-2.5

-4.0

SPT Sampler

SPT Sampler

SPT Sampler

SPT Sampler

SPT Sampler

SPT Sampler

SPT Sampler

SPT Sampler

SPT Sampler

SPT Sampler

NR

NR

NR

NR

NR

NR

NR

NR

NR

NR

SAND, poorly-graded, mostly fine-grained sand-sized quartz, trace plant debris, trace silt, tan (SP)

SAND, poorly-graded, mostly fine-grained sand-sized quartz, tan (SP)

SAND, poorly-graded with clay, mostly fine-grained sand-sized quartz, tan (SP-SC)

SAND, poorly-graded, mostly fine-grained sand-sized quartz, trace silt, tan (SP)

SAND, poorly-graded with clay, mostly fine-grained sand-sized quartz, tan (SP-SC)

SAND, clayey, mostly fine-grained sand-sized quartz, tan (SC)

11.011.0

6.5

5.0

3.5

2.0

-2.5

-4.0

0.0

4.5

6.0

7.5

9.0

13.5

15.0

0.0

RQD

OR

UD

CLASSIFICATION OF MATERIALS %

REC.

L E

G E

N D

B O

X O

R S

A M

P L

E

REMARKS

N -V

A L

U E

B L

O W

S

.5

F T

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

CB-ARDA98-4

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

CB-ARDA98-4

4. NAME OF DRILLER

AUTO HAMMERLOCATION COORDINATES

NAD83

See Remarks

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

X = 410,235 Y = 1,394,818

NAVD88

CME-550

1.5 Ft.

N/A

Law Engineering and Environmental services

18.0 Ft.

Jacksonville District

08-07-98

South Atlantic

N/A

R. Swint/ R. Henry

Anclote River

DMMA

08-07-98

11.0 Ft.

Not Recorded

Jon Sink, Civil Engineer

SAJ FORM 1836

JUN 02

(Continued)

Anclote River Dredging, 9-foot Project

00 31 32.20 Page 18

-5.5

-7.0

-7.0

SPT Sampler

SPT Sampler

NR

NR

CLAY, lean, tan (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. Borings were manually copied from GTGS database and entered into gINT.

Coordinates were converted to project datums.

4. Sample recovery was not recorded.

5. Rotary wash boring with drill mud.

6. Grouted 8/7/98.

140# hammer w/30" drop used with 2.0' split spoon (1-3/8" I.D. x 2" O.D.).

Abbreviations:

-7.0 18.0

INSTALLATION

LOCATION COORDINATES

COORDINATE SYSTEM/DATUMPROJECT HORIZONTAL

OFDRILLING LOG (Cont. Sheet)

ELEVATION TOP OF BORING

Boring Designation

Anclote River

11.0 Ft.

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

Jacksonville District

VERTICAL

SHEETS

SHEET

X = 410,235 Y = 1,394,818

CB-ARDA98-4

NAD83 NAVD88

RQD

OR

UD

CLASSIFICATION OF MATERIALS %

REC.

L E

G E

N D

B O

X O

R S

A M

P L

E

REMARKS

N -V

A L

U E

B L

O W

S

.5

F T

DEPTH

(ft)

ELEV.

(ft)

SAJ FORM 1836-A

JUN 02

Anclote River Dredging, 9-foot Project

00 31 32.20 Page 19

13.2

3.2

Test Pit

SAND, poorly-graded, mostly fine-grained sand-sized quartz, tan (SP)

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. Test pit back filled 8/6/98.

13.213.2

3.2 10.0

0.00.0

RQD

OR

UD

CLASSIFICATION OF MATERIALS %

REC.

L E

G E

N D

B O

X O

R S

A M

P L

E

REMARKS

N -V

A L

U E

B L

O W

S

F

T

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

TP-ARDA98-1

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

TP-ARDA98-1

4. NAME OF DRILLER

AUTO HAMMERLOCATION COORDINATES

NAD83

See Remarks

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

X = 410,117 Y = 1,394,578

NAVD88

Backhoe

N/A

Barrow Construction Inc

10.0 Ft.

Jacksonville District

08-07-98

South Atlantic

N/A

Bubba Barrow

Anclote River

DMMA

08-07-98

13.2 Ft.

N/A

Jon Sink, Civil Engineer

SAJ FORM 1836

JUN 02

Anclote River Dredging, 9-foot Project

00 31 32.20 Page 20

12.1

2.1

Test Pit

SAND, poorly-graded, mostly fine-grained sand-sized quartz, trace silt, tan (SP)

At El. 11.1 Ft., tan to light tan

At El. 3.1 Ft., light tan

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. Test pit back filled 8/6/98.

12.112.1

2.1 10.0

0.00.0

RQD

OR

UD

CLASSIFICATION OF MATERIALS %

REC.

L E

G E

N D

B O

X O

R S

A M

P L

E

REMARKS

N -V

A L

U E

B L

O W

S

F

T

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

TP-ARDA98-2

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

TP-ARDA98-2

4. NAME OF DRILLER

AUTO HAMMERLOCATION COORDINATES

NAD83

See Remarks

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

X = 409,707 Y = 1,394,536

NAVD88

Backhoe

N/A

Barrow Construction

10.0 Ft.

Jacksonville District

08-07-98

South Atlantic

N/A

Bubba Barrow

Anclote River

DMMA

08-07-98

12.1 Ft.

N/A

Jon Sink, Civil Engineer

SAJ FORM 1836

JUN 02

Anclote River Dredging, 9-foot Project

00 31 32.20 Page 21

12.1

6.1

Hand Auger

SAND, silty, mostly fine-grained sand-sized quartz, little silt, dry, dark brown (SM)

At El. 11.1 Ft., moist

At El. 9.1 Ft., few organic matter

SAND, poorly-graded with silt, mostly fine-grained sand-sized quartz, few silt, Light brown (SP-SM)

SAND, poorly-graded, mostly fine-grained sand-sized quartz, trace organic matter, tan

(SP)

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. Elevation of borings scaled off recent topographic map.

12.112.1

8.1

7.1

6.1 6.0

0.0

4.0

5.0

0.0

RQD

OR

UD

CLASSIFICATION OF MATERIALS %

REC.

L E

G E

N D

B O

X O

R S

A M

P L

E

REMARKS

N -V

A L

U E

B L

O W

S

F

T

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

HA-AR19-DMMA-1

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

HA-AR19-DMMA-1

4. NAME OF DRILLER

AUTO HAMMERLOCATION COORDINATES

NAD83

See Remarks

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

X = 409,780 Y = 1,394,881

NAVD88

Not Encountered

N/A

Corps of Engineers - CESAJ

6.0 Ft.

Jacksonville District

07-08-19

South Atlantic

N/A

Kendrick N.

Anclote River

DMMA

07-08-19

12.1 Ft.

N/A

Kendrick N., Geologist

SAJ FORM 1836

JUN 02

Anclote River Dredging, 9-foot Project

00 31 32.20 Page 22

10.4

7.9

Hand Auger

SAND, poorly-graded with silt, mostly fine-grained sand-sized quartz, few fine to coarse gravel-sized carbonate, few silt, dry, Dark brown (SP-SM) SAND, poorly-graded with clay, mostly fine-grained sand-sized quartz, few fine to coarse gravel-sized carbonate, moist, white

(SP-SC)

LIMESTONE, white

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. Elevation of borings scaled off recent topographic map.

10.410.4

9.4

8.4

7.9 2.5

0.0

1.0

2.0

0.0

RQD

OR

UD

CLASSIFICATION OF MATERIALS %

REC.

L E

G E

N D

B O

X O

R S

A M

P L

E

REMARKS

N -V

A L

U E

B L

O W

S

F

T

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

HA-AR19-DMMA-2

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

HA-AR19-DMMA-2

4. NAME OF DRILLER

AUTO HAMMERLOCATION COORDINATES

NAD83

See Remarks

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

X = 410,048 Y = 1,394,880

NAVD88

Not Encountered

N/A

Corps of Engineers - CESAJ

2.5 Ft.

Jacksonville District

07-08-19

South Atlantic

N/A

Kendrick N.

Anclote River

DMMA

07-08-19

10.4 Ft.

N/A

Kendrick N., Geologist

SAJ FORM 1836

JUN 02

Anclote River Dredging, 9-foot Project

00 31 32.20 Page 23

11.9

6.9

5.9

Hand Auger

Hand Auger1

SAND, poorly-graded, mostly fine-grained sand-sized quartz, trace organic matter, trace silt, dry, orange (SP)

SAND, poorly-graded with silt, mostly fine-grained sand-sized quartz, few silt, trace organic matter, moist, dark brown to orange

(SP-SM)

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. Elevation of borings scaled off recent topographic map.

11.911.9

6.9

5.9 6.0

0.0

5.0

0.0

RQD

OR

UD

CLASSIFICATION OF MATERIALS %

REC.

L E

G E

N D

B O

X O

R S

A M

P L

E

REMARKS

N -V

A L

U E

B L

O W

S

F

T

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

HA-AR19-DMMA-3

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

HA-AR19-DMMA-3

4. NAME OF DRILLER

AUTO HAMMERLOCATION COORDINATES

NAD83

See Remarks

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

X = 410,227 Y = 1,394,879

NAVD88

Not Encountered

N/A

Corps of Engineers - CESAJ

6.0 Ft.

Jacksonville District

07-08-19

South Atlantic

N/A

Kendrick N.

Anclote River

DMMA

07-08-19

11.9 Ft.

N/A

Kendrick N., Geologist

SAJ FORM 1836

JUN 02

Anclote River Dredging, 9-foot Project

00 31 32.20 Page 24

12.6

6.6

Hand Auger

SAND, poorly-graded, mostly fine-grained sand-sized quartz, trace silt, dry, tan to white

(SP)

At El. 11.6 Ft., little fine to coarse gravel-sized shell, trace organic matter, moist, orange to tan

At El. 9.6 Ft., few shell, trace organic matter

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. Elevation of borings scaled off recent topographic map.

12.612.6

6.6 6.0

0.00.0

RQD

OR

UD

CLASSIFICATION OF MATERIALS %

REC.

L E

G E

N D

B O

X O

R S

A M

P L

E

REMARKS

N -V

A L

U E

B L

O W

S

F

T

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

HA-AR19-DMMA-4

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

HA-AR19-DMMA-4

4. NAME OF DRILLER

AUTO HAMMERLOCATION COORDINATES

NAD83

See Remarks

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

X = 409,779 Y = 1,394,680

NAVD88

Not Encountered

N/A

Corps of Engineers - CESAJ

6.0 Ft.

Jacksonville District

07-08-19

South Atlantic

N/A

Kendrick N.

Anclote River

DMMA

07-08-19

12.6 Ft.

N/A

Kendrick N,, Geologist

SAJ FORM 1836

JUN 02

Anclote River Dredging, 9-foot Project

00 31 32.20 Page 25

13.9

7.9

Hand Auger

SAND, poorly-graded, mostly fine-grained sand-sized quartz, trace silt, dry, light gray

(SP)

SAND, poorly-graded with silt, mostly fine-grained sand-sized quartz, few silt, trace organic matter, moist, light gray (SP-SM)

SAND, poorly-graded, mostly fine-grained sand-sized quartz, trace organic matter, trace silt, moist, white (SP)

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. Elevation of borings scaled off recent topographic map.

13.913.9

12.9

10.9

7.9 6.0

0.0

1.0

3.0

0.0

RQD

OR

UD

CLASSIFICATION OF MATERIALS %

REC.

L E

G E

N D

B O

X O

R S

A M

P L

E

REMARKS

N -V

A L

U E

B L

O W

S

F

T

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

HA-AR19-DMMA-5

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

HA-AR19-DMMA-5

4. NAME OF DRILLER

AUTO HAMMERLOCATION COORDINATES

NAD83

See Remarks

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

X = 409,919 Y = 1,394,649

NAVD88

Not Encountered

N/A

Corps of Engineers - CESAJ

6.0 Ft.

Jacksonville District

07-08-19

South Atlantic

N/A

Kendrick N.

Anclote River

DMMA

07-08-19

13.9 Ft.

N/A

Kendrick N., Geologist

SAJ FORM 1836

JUN 02

Anclote River Dredging, 9-foot Project

00 31 32.20 Page 26

14.5

8.5

Hand Auger

SAND, poorly-graded, mostly fine-grained sand-sized quartz, trace silt, trace organic matter, dry, white (SP)

At El. 13.5 Ft., few fine to coarse gravel-sized shell, moist, tan to orange

At El. 12.5 Ft., white to tan

At El. 11.5 Ft., white to orange

SAND, silty, mostly fine-grained sand-sized quartz, little silt, dark brown (SM)

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. Elevation of borings scaled off recent topographic map.

14.514.5

9.5

8.5 6.0

0.0

5.0

0.0

RQD

OR

UD

CLASSIFICATION OF MATERIALS %

REC.

L E

G E

N D

B O

X O

R S

A M

P L

E

REMARKS

N -V

A L

U E

B L

O W

S

F

T

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

HA-AR19-DMMA-6

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

HA-AR19-DMMA-6

4. NAME OF DRILLER

AUTO HAMMERLOCATION COORDINATES

NAD83

See Remarks

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

X = 409,856 Y = 1,394,546

NAVD88

Not Encountered

N/A

Corps of Engineers - CESAJ

6.0 Ft.

Jacksonville District

07-08-19

South Atlantic

N/A

Kendrick N.

Anclote River

DMMA

07-08-19

14.5 Ft.

N/A

Kendrick N., Geologist

SAJ FORM 1836

JUN 02

Anclote River Dredging, 9-foot Project

00 31 32.20 Page 27

14.7

8.7

Hand Auger

SAND, poorly-graded, mostly fine-grained sand-sized quartz, trace silt, dry, white to orange (SP)

At El. 13.7 Ft., trace shell

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. Elevation of borings scaled off recent topographic map.

14.714.7

8.7 6.0

0.00.0

RQD

OR

UD

CLASSIFICATION OF MATERIALS %

REC.

L E

G E

N D

B O

X O

R S

A M

P L

E

REMARKS

N -V

A L

U E

B L

O W

S

F

T

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

HA-AR19-DMMA-7

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

HA-AR19-DMMA-7

4. NAME OF DRILLER

AUTO HAMMERLOCATION COORDINATES

NAD83

See Remarks

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

X = 409,815 Y = 1,394,448

NAVD88

Not Encountered

N/A

Corps of Engineers - CESAJ

6.0 Ft.

Jacksonville District

07-08-19

South Atlantic

N/A

Kendrick N.

Anclote River

DMMA

07-08-19

14.7 Ft.

N/A

Kendrick N., Geologist

SAJ FORM 1836

JUN 02

Anclote River Dredging, 9-foot Project

00 31 32.20 Page 28

13.2

7.2

Hand Auger

SAND, poorly-graded, mostly fine-grained sand-sized quartz, trace organic matter, dry, white (SP)

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. Elevation of borings scaled off recent topographic map.

13.213.2

7.2 6.0

0.00.0

RQD

OR

UD

CLASSIFICATION OF MATERIALS %

REC.

L E

G E

N D

B O

X O

R S

A M

P L

E

REMARKS

N -V

A L

U E

B L

O W

S

F

T

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

HA-AR19-DMMA-8

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

HA-AR19-DMMA-8

4. NAME OF DRILLER

AUTO HAMMERLOCATION COORDINATES

NAD83

See Remarks

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

X = 409,954 Y = 1,394,439

NAVD88

Not Encountered

N/A

Corps of Engineers - CESAJ

6.0 Ft.

Jacksonville District

07-08-19

South Atlantic

N/A

Kendrick N.

Anclote River

DMMA

07-08-19

13.2 Ft.

N/A

Kendrick N., Geologist

SAJ FORM 1836

JUN 02

Anclote River Dredging, 9-foot Project

00 31 32.20 Page 29

10.1

5.1

4.1

0.1

Hand Auger

Hand Auger

Hand Auger

SAND, poorly-graded with silt, mostly fine-grained sand-sized quartz, trace organic matter, dry, dark brown (SP-SM)

SAND, poorly-graded, mostly fine-grained sand-sized quartz, few organic matter, moist, dark brown (SP)

SAND, poorly-graded with silt, mostly fine-grained sand-sized quartz, few organic matter, moist, dark brown (SP-SM)

SAND, poorly-graded, mostly fine-grained sand-sized quartz, trace silt, moist, light brown (SP)

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. Elevation of borings scaled off recent topographic map.

10.110.1

9.1

8.1

7.1

0.1 10.0

0.0

1.0

2.0

3.0

0.0

RQD

OR

UD

CLASSIFICATION OF MATERIALS %

REC.

L E

G E

N D

B O

X O

R S

A M

P L

E

REMARKS

N -V

A L

U E

B L

O W

S

F

T

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

HA-AR19-DMMA-9

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

HA-AR19-DMMA-9

4. NAME OF DRILLER

AUTO HAMMERLOCATION COORDINATES

NAD83

See Remarks

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

X = 410,135 Y = 1,394,475

NAVD88

Not Encountered

N/A

Corps of Engineers - CESAJ

10.0 Ft.

Jacksonville District

07-08-19

South Atlantic

N/A

Kendrick N.

Anclote River

DMMA

07-08-19

10.1 Ft.

N/A

Kendrick N., Geologist

SAJ FORM 1836

JUN 02

Anclote River Dredging, 9-foot Project

00 31 32.20 Page 30

1.8

-0.2

-1.2

Hand Auger

Hand Auger1

SAND, poorly-graded with silt, mostly fine-grained sand-sized quartz, few organic matter, few silt, dry, dark brown (SP-SM)

SAND, silty, mostly fine-grained sand-sized quartz, little silt, few organic matter, moist, dark brown (SM)

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. Elevation of borings scaled off recent topographic map.

1.81.8

-0.2

-1.2 3.0

0.0

2.0

0.0

RQD

OR

UD

CLASSIFICATION OF MATERIALS %

REC.

L E

G E

N D

B O

X O

R S

A M

P L

E

REMARKS

N -V

A L

U E

B L

O W

S

F

T

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

HA-AR19-DMMA-10

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

HA-AR19-DMMA-10

4. NAME OF DRILLER

AUTO HAMMERLOCATION COORDINATES

NAD83

See Remarks

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

X = 410,074 Y = 1,394,624

NAVD88

Not Encountered

N/A

Corps of Engineers - CESAJ

3.0 Ft.

Jacksonville District

07-08-19

South Atlantic

N/A

Kendrick N.

Anclote River

DMMA

07-08-19

1.8 Ft.

N/A

Kendrick N., Geologist

SAJ FORM 1836

JUN 02

Anclote River Dredging, 9-foot Project

00 31 32.20 Page 31

5.5 CORE BORING INVESTIGATION REPORT 2020

00 31 32.20 Page 32

REPORT OF GEOTECHNICAL EXPLORATION

ANCLOTE DMMA

TARPON SPRINGS, FLORIDA

AREHNA PROJECT NO. B-19-008.08

December 22, 2020

Prepared For:

City of Tarpon Springs 324 E. Pine Street Tarpon Springs, Florida ‘

Prepared By:

AREHNA Engineering, Inc.

5012 West Lemon Street Tampa, Florida 33609 www.arehna.com

5012 West Lemon Street

Ph 813.944.3464 │ Fax 813.944.4959

December 22, 2020

Mr. Bob Robertson Project Administration Department Director City of Tarpon Springs 324 E. Pine Street Tarpon Springs, Florida

E-mail: rrobertson@ctsfl.us

Subject: Report of Geotechnical Exploration Anclote DMMA – City of Tarpon Springs Parcel ID: 012715000002300100 Tarpon Springs, Florida

AREHNA B-20-008.09

Dear Mr. Robertson, AREHNA Engineering, Inc. (AREHNA) is pleased to submit this report of our geotechnical exploration for the proposed project. Services were conducted in general accordance with AREHNA Proposal B.Prop-20-147, dated November 3, 2020. The purpose of our geotechnical study was to obtain information on the general subsurface conditions and identify potential risk of karst activity for the proposed Anclote River Dredge Material Management Area.

This report presents our…