FY27_ENGCP_002_2_GWOliverRdBridgeConstruction.pdf

Report Cover Page

G.W Oliver Road over Little Lotts Creek

Bridge Foundation Investigation (LRFD)

Bridge # 1 Report

March 4, 2026 | Terracon Project No. ES255161

Prepared for:

Kimley-Horn and Associates Inc.

25 Bull Street, Ste. 400

Savannah, GA 31401

2201 Rowland Avenue

Savannah, GA 31404

P (912) 629-4000

Terracon.com

Facilities | Environmental | Geotechnical | Materials

Report Cover Letter to Sign

March 4, 2026

Kimley-Horn and Associates Inc.

25 Bull Street, Ste. 400

Savannah, GA 31401

Attn: Mr. Hunt Rhodes

P: (912) 328 4445

E: Rhodes.hunt@kimley-horn.com

Re: Bridge Foundation Investigation (LRFD) Bridge # 1 Report

G.W Oliver Road over Little Lotts Creek

Statesboro, Bulloch County, GA

Terracon Project No. ES255161

Dear Mr. Hunt:

We have completed the scope of the Bridge Foundation Investigation (LRFD) Bridge # 1 for the above referenced project in general accordance with Terracon Proposal No. PES255161 dated June 19,2025. This report presents the findings of the subsurface exploration and provides geotechnical recommendations for the design and construction of the project.

We appreciate the opportunity to be of service to you on this project. If you have any questions concerning this report or if we may be of further service, please contact us.

Sincerely, Terracon

Nurudeen Abidoye, M.S. Guoming Lin, Ph.D., G.E., BC.GE

Senior Staff Geotechnical Engineer Senior Consultant

Bridge Foundation Investigation (LRFD), Br. # 1

G.W Oliver Road over Little Lotts Creek | Statesboro, Bulloch County, GA

Bulloch County

Terracon Project # ES255161

March 4, 2026

LOCATION (See

Map)

G.W. Oliver over little Lott Creek, Bridge No.1

GENERAL INFORMATION

GEOLOGIC FORMATION Neogene undifferentiated Formation of the Georgia

Coastal Plain Region.

SUBSURFACE FEATURES Below the surface material, the site consists of medium dense sands to depths of 2 to 6 feet BGS, EL +140 to

+137 feet, followed by 56 to 65 feet of very loose to loose sands or occasional soft to stiff clays to (approx.

elevation) +82 to +76 feet.

Below the weak soils the site consists of medium dense to very dense sands interbedded with loose sands to the termination of SPT borings at depths of 110 to 115 feet, BGS, or (approx. elevation) +34 to+28 feet.

Groundwater was encountered in the SPT borings at depths of approximately 7 feet BGS, or (approx.

elevation) +137 to 136 feet. For additional information see the boring layout and boring logs.

SITE CLASSIFICATION We recommend a site class of E, per AASHTO LRFD 9th

Edition Section 3.10.3.1.

1.0 – FOUNDATION RECOMMENDATIONS

Bents Pile Bent (Type)

Bents 1 & 4 PSC

Bents 2 & 3 PSC

1.1 – Pile Properties

6.5 ksi (28-day Concrete Strength) PSC Pile Data

Pile Type

Pile Size

(in)

Nominal

Compressio n Stress

(ksi)

Nominal Tension Stress

(ksi)

Maximum

Factored

Structural

Resistance

(kips)

Normal

Env. Severe Env.

PSC 20 x 20 4.375 1.392 1.150 1252

1.2 – DESIGN LOADS

Bents

Maximum

Factored

Strength Limit

State Load

(kips)

Maximum

Factored

Service Limit

State Load

(kips)

Factored

Extreme Event

I Limit State

Load

(kips)

1 & 4 214 145 105

2 & 3 281 218 238

2.0 -- FOUNDATION DESIGN

2.1 -- PILE FOUNDATION DESIGN

Bents Pile Type Size (in)

Down Drag

(kips)

Scour

(Kips)

Driving

Resistance1

(kips)

1 PSC 20 -- -- 329

2 PSC 20 -- 34.3 467

3 PSC 20 -- 37.5 470

4 PSC 20 -- -- 329

Note1: Driving resistance is equivalent to pile capacity during construction. For intermediate bents or bents prone to scour, the post-construction pile capacity is reduced by the scour load if a 100-year scour event occurs.

2.2 – LATERAL DISPLACEMENT DESIGN

Maximum Strength

Limit (kips)

Maximum Lateral

Deflection (inches)

Bents Pile

Type

Size Axial Shear Fixed Head Free Head

Bent 1 PSC 20 44 11 0.15 0.39

Bent 2 PSC 20 113 9 1.58 7.80

Bent 2* PSC 20 113 9 0.39 1.61

Bent 3 PSC 20 113 9 1.54 7.79

Bent 3* PSC 20 113 9 0.39 1.59

Bent 4 PSC 20 44 11 0.16 0.39

Note*: Pile deflection analysis did not include scour considerations.

3.0 -- FOUNDATION ELEVATIONS

Bents Minimum Tip Estimated Tip

Bent 1 +82 +70

Bent 2 +68 +55

Bent 3 +70 +55

Bent 4 +80 +70

4.0 -- GENERAL NOTES

Elevations All elevations are based on benchmark elevation of a nail in asphalt located 7.63 feet left of station 107+18.51 on construction limit. With Elevation 143.64’. Northing: 854388.99 and Easting

767547.31.

Waiting Period None required.

Theoretical Scour Appears feasible for the material encountered.

As Built

Foundation

Information

The as built foundation information should be forwarded to the

Geotechnical Engineering Bureau upon completion of the foundation system.

4.1 -- PILE FOUNDATION NOTES

PDO Driving resistance after minimum tip elevations are achieved in conjunction with GDOT Standard Specification

520.3.05.D.2 and Special Provision 523 Dynamic Pile

Testing. Perform one PDA test at Bent 1 Left, Bent 2

Right, Bent 3 Left and Bent 4 Right.

* Nominal

Bearing

Resistance of

Single Pile

Driving resistance is based on the following field verification method and resistance factor φdyn per AASHTO

LRFD 2020 (10.5.5.2.3-1):

Resistance Determination Method Resistance

Factor

Driving criteria established by dynamic testing of at least two piles per site condition, but no less than 2% of the production piles.

0.65

Drivability A drivability analysis has not been completed on the above mentioned piles to their respective estimated tips.

Freeze Bearing Piles should not be overdriven at this site. If dynamic bearing has not been achieved by 2 feet above the

Estimated Tip Elevation, pile driving should be stopped for a minimum of 24 hours and re-started with a warm hammer to check for “freeze” bearing.

Corrosion

Resistant PSC

Piling

The corrosion series test results of soil and water are summarized in the following table.

Corrosion Test Requirement Test Result pH 5.5 to 9.5 5.3 to 7.01

Resistivity Greater than

4000 ohm-cm

1,200 to 30,000

Chloride Content Less than 100 ppm

21 to 47.2

5.0 – QA / QC

Prepared By Name: Nurudeen Abidoye, M.S.

Reviewed By Name: Guoming Lin, Ph.D., G.E., BC.GE.

Approved By

Signature: ___________________________________________

Sulfate

Concentration

Less than 200 ppm

12.9 to 97

Based on the test results, no special provisions for corrosion protection of prestressed concrete (PSC) piles are recommended for the foundation of this bridge.

Test Piles We recommend that PSC test piles be set up at Bent 1

Left, Bent 2 Right, Bent 3 Left and Bent 4 Right to help determine pile order lengths. They should be of sufficient length to reach a depth of 5 feet below the Estimated Tip

Elevation.

Special

Problems

Erratic pile lengths can be expected.

Geotechnical Engineering Report

G.W. Oliver Road over Little Lotts Creek | Statesboro, GA

Attachments

Exploration and Testing Procedures

Field Exploration

Number of

Borings Type of Exploration

Maximum Boring

Depth (feet) Location

Standard Penetration Test

(SPT) Boring 115 Project Area

Boring Layout and Elevations: Terracon personnel provided the boring layout and elevation readings obtained in the field using survey grade Trimble R12 system (Feet, NAVD 88)

Subsurface Exploration Procedures: The soil test borings were performed in accordance with ASTM D1586 with a truck-mounted drilling rig using mud rotary drilling techniques. The SPT samples were taken at 2-feet intervals in the upper ten (10) feet and at 5-feet intervals thereafter using the split-barrel sampling procedures. In the split barrel sampling procedure, the number of blows required to advance a standard 2-inch O.D. split barrel sampler the last 12 inches of the typical total 18-inch penetration by means of a

140-pound hammer with a free fall of 30 inches, is the standard penetration resistance value (SPT-N). This value is used to estimate the in situ relative density of cohesionless soils and consistency of cohesive soils.

The sampling depths, penetration distances, and other sampling information was recorded on the field boring logs. The samples were placed in appropriate containers and taken to our soil laboratory for testing and classification by a Geotechnical Engineer. Our exploration team prepared field boring logs as part of the drilling operations. These field logs included visual classifications of the materials observed during drilling and our interpretation of the subsurface conditions between samples. Final boring logs were prepared from the field logs. The final boring logs represent the Geotechnical Engineer's interpretation of the field logs and include modifications based on observations and tests of the samples in our laboratory.

Laboratory Testing

The project engineer reviewed the field data and assigned laboratory tests. The laboratory testing program included the following types of tests:

■ ASTM D2216 Standard Test Methods for Laboratory Determination of Water Content of Soil and Rock Mass (Moisture)

■ ASTM D422 Standard Test Method for Particle-Size Analysis of Soils

■ ASTM D4318 Standard Test Methods for Liquid Limit, Plastic Limit, and Plasticity

Index of Soils

The laboratory testing program often included examination of soil samples by an engineer.

Based on the results of our field and laboratory programs, we described and classified the soil samples in accordance with the Unified Soil Classification System.

Photography Log

Existing condition near the proposed bridge

Deteriorated culvert pipes discharging into Little Lotts Creek

Site Location and Exploration Plans

Contents:

Site Location

Exploration Plan

Typical Soil Profile and Proposed Design Plan

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Site Location

DIAGRAM IS FOR GENERAL LOCATION ONLY, AND IS NOT INTENDED FOR CONSTRUCTION PURPOSES MAP PROVIDED BY MICROSOFT BING MAPS

S

IT

E

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When paragraph markers are turned on you may notice a line of hidden text above and outside the table – please leave that alone. Limit editing to inside the table.

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Exploration Plan

DIAGRAM IS FOR GENERAL LOCATION ONLY, AND IS NOT INTENDED FOR CONSTRUCTION PURPOSES MAP PROVIDED BY MICROSOFT BING MAPS

EXPLORATION PLAN

2201 Rowland Avenue Savannah, Georgia 31404

Phone (912) 629 4000 Fax (912) 629 4001

G.W. Oliver over Little Lotts Road

Statesboro

Bulloch County, Georgia

Image Courtesy of

Google Earth

LEGEND

NOTES:

BRIDGE DESIGN PLAN PROVIDED TO TERRACON BY KIMLEY-HORN VIA

EMAIL ON 12-05-25.

ALL EXPLORATION LOCATIONS WERE LOCATED IN THE FIELD USING A

GPS UNIT AND / OR SITE LANDMARKS. EXPLORATION LOCATIONS

SHOULD BE CONSIDERED APPROXIMATE. DIAGRAM IS FOR GENERAL

LOCATION ONLY; NOT INTENDED FOR CONSTRUCTION PURPOSES.

C1

D1

P TP1

SPT Borings

B1 (Bent 1)

B-B2 - (100’)

STA 41+16.80

Offset 32’ LT

Project Manager:

Drawn by:

Checked by:

Approved by:

CZ

GL

Project No.

Scale:

File Name:

Date:

N.T.S.

3/4/26

NAA

NAA

ES255161

B2 (Bent 4) B3 (Bent 1)

B4 (Bent 4)

No borings were performed at Bent 2 and Bent 3 due to the exiting nature of the culverts

TYPICAL SOIL PROFILE AND PROPOSED BRIDGE PLAN

2201 Rowland Avenue Savannah, Georgia 31404

Phone (912) 629 4000 Fax (912) 629 4001

G.W. Oliver over Little Lotts Road

Statesboro

Bulloch County, Georgia

NOTES:

BRIDGE DESIGN PLAN PROVIDED TO TERRACON BY KIMLEY-HORN VIA

EMAIL ON 12-05-25.

ALL EXPLORATION LOCATIONS WERE LOCATED IN THE FIELD USING A

GPS UNIT AND / OR SITE LANDMARKS. EXPLORATION LOCATIONS

SHOULD BE CONSIDERED APPROXIMATE. DIAGRAM IS FOR GENERAL

LOCATION ONLY; NOT INTENDED FOR CONSTRUCTION PURPOSES.

C1

D1

P TP1

B-B2 - (100’)

STA 41+16.80

Offset 32’ LT

Project Manager:

Drawn by:

Checked by:

Approved by:

CZ

GL

Project No.

Scale:

File Name:

Date:

PI 0017515

N.T.S.

3/4/26

DG

NAA

ES255161

Screenshot plan with 75%

B1 (Bent 1)

B2 (Bent 4)

B3 (Bent 1) B4 (Bent 4)

Exploration and Laboratory Results

Subsurface Profile Cross Section

SPT Boring Logs

HA Boring Logs

Summary of Laboratory Results

Atterberg Limits

Grain Size Distribution

Corrosion Test Results

N=10 N=16 N=10 N=5 N=9 N=9

N=2

N=2

N=5

N=3

N=7

N=4

N=5

N=4

N=9

N=39

N=14

N=26

N=34

N=9

N=24

N=34

N=22

N=26

N=50/6" BT-110.0 Ft.

B1 (Bent 1)

N=18 N=14 N=8 N=4 N=6 N=6

N=3

N=6

N=2

N=4

N=7

N=6

N=4

N=25

N=6

N=19

N=23

N=7

N=6

N=23

N=17

N=33

N=WOH/18"

N=WOH/18"

N=50/5" BT-110.0 Ft.

B3 (Bent 1)

N=16 N=6 N=4 N=2 N=3

N=21

N=2

N=1

N=11

N=4

N=8

N=1

N=3

N=2

N=8

N=7

N=15

N=24

N=18

N=5

N=14

N=28

N=18

N=28

N=14-77/7" BT-110.0 Ft.

B4 (Bent 4)

N=12 N=12 N=6 N=4

N=17

N=3

N=4

N=9

N=4

N=6

N=6

N=6

N=4

N=7

N=9

N=20

N=21

N=20

N=5

N=13

N=33

N=21

N=31

N=WOH/24"

N=50/6"

N=50/6" BT-115.0 Ft.

B2 (Bent 4)

Subsurface Profile E le v a ti o n

F e e t)

Facilities | Environmental | Geotechnical | Materials

Topsoil Clayey Sand Silty Sand Poorly-graded Sand with Silt

Poorly-graded Sand with Clay

Sandy Lean Clay

Clayey Sand with Gravel Asphalt

Terracon Project No. ES255161

Notes

Sampling (See General Notes)

See Exploration Plan for orientation of soil profile.

See General Notes in Supporting Information for symbols and soil classifications.

Soils profile provided for illustration purposes only.

Soils between borings may differ AR - Auger Refusal BT - Boring Termination

Water Level Reading at time of drilling.

Water Level Reading after drilling.

Water Level Observations

Moisture Content

%w

B1 (Bent 1)

Borehole Lithology

Borehole Termination Type

Explanation

Borehole Number

Liquid and Plastic Limits

AR

BT

LL PL

G.W. Oliver Road over Little Lotts Creek

Savannah, GA

2201 Rowland Ave

G.W. Oliver Rd | Statesboro, GA

Material Legend

142.5

TOPSOIL, with vegetation CLAYEY SAND (SC), fine to medium grained, red/orange/brown, medium dense SILTY SAND (SM), with trace mulch and wood debris, fine to medium grained, dark brown/light brown, medium dense light brown/gray POORLY GRADED SAND WITH SILT (SP-SM), fine to coarse grained, brown/gray, loose

CLAYEY SAND (SC), fine to medium grained, light gray/orange, loose light gray, very loose

SILTY SAND (SM), fine to medium grained, light gray, loose very loose

CLAYEY SAND (SC), fine to medium grained, light gray, loose no recovery

POORLY GRADED SAND WITH CLAY (SP-SC), fine to coarse grained, light gray, loose

SANDY LEAN CLAY (CL), light gray, stiff

Boring Log No. B1 (Bent 1)

W at er L ev el

O bs er va tio ns

D ep th

Ft

Facilities | Environmental | Geotechnical | Materials

Elevation: 143 (Ft.)

G ra p h ic

L o g

Hammer Efficiency = 77.2%

21.0

32.4

33.9

NP

NP

50-18-32

0.5 2.0

6.0

12.0

27.0

37.0

52.0

57.0

8.1

13.3

19.8

3-5-5-11 N=10

7-8-8-7 N=16

5-6-4-5 N=10

1-2-3-3 N=5

3-4-5-3 N=9

4-5-4 N=9

1-1-1 N=2

1-1-1 N=2

2-2-3 N=5

1-1-2 N=3

3-3-4 N=7

2-2-2 N=4

2-2-3 N=5

1-2-2 N=4

1-3-6

Advancement Method Mud Rotary

Notes

Water Level Observations Groundwater encountered @ 7 ft BGS

See Exploration and Testing Procedures for a description of field and laboratory procedures used and additional data (If any).

See Supporting Information for explanation of symbols and abbreviations.

Elevation Reference: Elevation measured in the field in feet, NAVD 88.

G.W. Oliver Road over Little Lotts Creek

Hammer Type Automatic

G.W. Oliver Rd | Statesboro, GA

Terracon Project No. ES255161 Savannah, GA

2201 Rowland Ave

Drill Rig

BR-2500

Driller Independent Drilling

Logged by

LH

Boring Started 08-25-2025

Boring Completed 08-26-2025

Abandonment Method Boring backfilled with Auger Cuttings and/or Bentonite

S am pl e

T yp e

W at er C o n te n t

) Atterberg

Limits

LL-PL-PI

See Exploration PlanLocation:

Latitude: 32.3485° Longitude: -81.8065°

Depth (Ft.)

Pe rc en t

Fi n es

Fi el d T es t

R es u lt s

SANDY LEAN CLAY (CL), light gray, stiff (continued)

CLAYEY SAND (SC), fine to coarse grained, light gray, dense

SILTY SAND (SM), fine to coarse grained, light gray, medium dense dense loose medium dense dense medium dense

POORLY GRADED SAND WITH SILT (SP-SM), fine to medium grained, light gray, medium dense no recovery, very dense

Boring Terminated at 110 Feet

Boring Log No. B1 (Bent 1)

W at er L ev el

O bs er va tio ns

D ep th

Ft

Facilities | Environmental | Geotechnical | Materials

Elevation: 143 (Ft.)

G ra p h ic

L o g

Hammer Efficiency = 77.2%

71.0

31.9

31.8

75-28-47

NP

NP

62.0

67.0

102.0

110.0

29.0

12.8

11.9

N=9

9-21-18 N=39

4-6-8 N=14

7-12-14 N=26

11-15-19 N=34

5-4-5 N=9

8-10-14 N=24

9-13-21 N=34

4-9-13 N=22

10-12-14 N=26

N=50/6"

Advancement Method Mud Rotary

Notes

Water Level Observations Groundwater encountered @ 7 ft BGS

See Exploration and Testing Procedures for a description of field and laboratory procedures used and additional data (If any).

See Supporting Information for explanation of symbols and abbreviations.

Elevation Reference: Elevation measured in the field in feet, NAVD 88.

G.W. Oliver Road over Little Lotts Creek

Hammer Type Automatic

G.W. Oliver Rd | Statesboro, GA

Terracon Project No. ES255161 Savannah, GA

2201 Rowland Ave

Drill Rig

BR-2500

Driller Independent Drilling

Logged by

LH

Boring Started 08-25-2025

Boring Completed 08-26-2025

Abandonment Method Boring backfilled with Auger Cuttings and/or Bentonite

S am pl e

T yp e

W at er C o n te n t

) Atterberg

Limits

LL-PL-PI

See Exploration PlanLocation:

Latitude: 32.3485° Longitude: -81.8065°

Depth (Ft.)

Pe rc en t

Fi n es

Fi el d T es t

R es u

CLAYEY SAND (SC), with topsoil and vegetation, fine to medium grained, orange/red/brown, medium dense orange/red fine to coarse grained, loose orange

SILTY SAND (SM), fine to medium grained, orange, loose

CLAYEY SAND (SC), fine to medium grained, light gray/light green, loose

SILTY SAND (SM), fine to medium grained, light gray, very loose light gray/tan

POORLY GRADED SAND WITH SILT (SP-SM), fine to medium grained, light gray/tan, loose

SILTY SAND (SM), fine to medium grained, light gray, very loose loose

CLAYEY SAND (SC), fine to coarse grained, light gray, loose no recovery [53.5"-55" BGS], very loose with organics, loose

Boring Log No. B3 (Bent 1)

W at er L ev el

O bs er va tio ns

D ep th

Ft

G ra p h ic

L o g

Facilities | Environmental | Geotechnical | Materials

Elevation: 144 (Ft.)

WOH=Weight of Hammer

35.3

33.1

8.0

12.0

17.0

28.0

32.0

47.0

37.6

12.3

19-9-9-9 N=18

9-7-7-7 N=14

2-3-5-5 N=8

4-3-1-2 N=4

1-2-4-4 N=6

2-2-4 N=6

2-1-2 N=3

N=WOH/18"

3-2-4 N=6

0-1-1 N=2

0-2-2 N=4

2-3-4 N=7

3-3-3 N=6

N=WOH/18"

3-1-3

58-23-35

NP

Advancement Method Mud Rotary

Notes

Water Level Observations Groundwater encountered @ 7 ft BGS

See Exploration and Testing Procedures for a description of field and laboratory procedures used and additional data (If any).

See Supporting Information for explanation of symbols and abbreviations.

Elevation Reference: Elevation measured in the field in feet, NAVD 88.

G.W. Oliver Road over Little Lotts Creek

Hammer Type Automatic

G.W. Oliver Rd | Statesboro, GA

Terracon Project No. ES255161 Savannah, GA

2201 Rowland Ave

Drill Rig

DR 621

Driller

LP/NN

Logged by

LH

Boring Started 01-06-2026

Boring Completed 01-06-2026

Abandonment Method Boring backfilled with Auger Cuttings and/or Bentonite

S am pl e

T yp e

W at er C o n te n t

Depth (Ft.)

Pe rc en t

Fi n es

Fi el d T es t

R es u lt s

Atterberg Limits

LL-PL-PI

See Exploration PlanLocation:

Latitude: 32.3485° Longitude: -81.8063°

CLAYEY SAND (SC), fine to coarse grained, light gray, loose (continued) light gray/green, medium dense

SILTY SAND (SM), no recovery [68.5"-70" BGS], fine to medium grained, light gray, loose medium dense no recovery [83.5"-85" BGS], loose light gray/light brown, loose

POORLY GRADED SAND WITH SILT (SP-SM), fine to coarse grained, light gray, medium dense

SILTY SAND (SM), fine to medium grained, light gray, medium dense dense very dense

Boring Terminated at 110 Feet

Boring Log No. B3 (Bent 1)

W at er L ev el

O bs er va tio ns

D ep th

Ft

G ra p h ic

L o g

Facilities | Environmental | Geotechnical | Materials

Elevation: 144 (Ft.)

35.8

67.0

92.0

98.0

110.0

12.4

N=4

2-7-18 N=25

1-2-4 N=6

7-7-12 N=19

7-10-13 N=23

3-3-4 N=7

4-3-3 N=6

9-10-13 N=23

4-6-11 N=17

11-14-19 N=33

N=50/5"

NP

Advancement Method Mud Rotary

Notes

Water Level Observations Groundwater encountered @ 7 ft BGS

See Exploration and Testing Procedures for a description of field and laboratory procedures used and additional data (If any).

See Supporting Information for explanation of symbols and abbreviations.

Elevation Reference: Elevation measured in the field in feet, NAVD 88.

G.W. Oliver Road over Little Lotts Creek

Hammer Type Automatic

G.W. Oliver Rd | Statesboro, GA

Terracon Project No. ES255161 Savannah, GA

2201 Rowland Ave

Drill Rig

DR 621

Driller

LP/NN

Logged by

LH

Boring Started 01-06-2026

Boring Completed 01-06-2026

Abandonment Method Boring backfilled with Auger Cuttings and/or Bentonite

S am pl e

T yp e

W at er C o n te n t

Depth (Ft.)

Pe rc en t

Fi n es

Fi el d T es t

R es u lt s

Atterberg Limits

LL-PL-PI

See Exploration PlanLocation:

Latitude: 32.3485° Longitude: -81.8063°

143.5

ASPHALT CONCRETE, [6" thick] CLAYEY SAND (SC), fine to medium grained, brown, medium dense SILTY SAND (SM), trace pebbles, fine to medium grained, orange/brown, loose trace organics (wood), brown/gray, very loose

SANDY LEAN CLAY (CL), trace pebbles, brown/gray, soft

POORLY GRADED SAND WITH SILT (SP-SM), fine to coarse grained, light brown, medium dense light brown/olive, very loose

SILTY SAND (SM), fine to medium grained, gray, very loose light brown/gray, medium dense light gray, loose light olive green, very loose

CLAYEY SAND (SC), fine to medium grained, light gray, very loose loose

Boring Log No. B4 (Bent 4)

W at er L ev el

O bs er va tio ns

D ep th

Ft

Facilities | Environmental | Geotechnical | Materials

Elevation: 144 (Ft.)

G ra p h ic

L o g

37.0

36.8

76.4

NP

NP

41-18-23

0.5 2.0

8.0

12.0

22.0

47.0

10.1

12.8

42.2

11-8-8-7 N=16

2-3-3-2 N=6

1-2-2-1 N=4

0-1-1-1 N=2

1-1-2-1 N=3

6-11-10 N=21

3-1-1 N=2

0-0-1 N=1

5-5-6 N=11

1-1-3 N=4

3-3-5 N=8

0-0-1 N=1

3-2-1 N=3

0-1-1 N=2

3-4-4

Advancement Method Mud Rotary

Notes

Water Level Observations Groundwater encountered @ 7 ft BGS

See Exploration and Testing Procedures for a description of field and laboratory procedures used and additional data (If any).

See Supporting Information for explanation of symbols and abbreviations.

Elevation Reference: Elevation measured in the field in feet, NAVD 88.

G.W. Oliver Road over Little Lotts Creek

Hammer Type Automatic

G.W. Oliver Rd | Statesboro, GA

Terracon Project No. ES255161 Savannah, GA

2201 Rowland Ave

Drill Rig

DR 621

Driller

LP/NN

Logged by

LH

Boring Started 01-08-2026

Boring Completed 01-08-2026

Abandonment Method Boring backfilled with Auger Cuttings and/or Bentonite

S am pl e

T yp e

W at er C o n te n t

) Atterberg

Limits

LL-PL-PI

See Exploration PlanLocation:

Latitude: 32.3485° Longitude: -81.8059°

Depth (Ft.)

Pe rc en t

Fi n es

Fi el d T es t

R es u

CLAYEY SAND (SC), fine to medium grained, light gray, very loose (continued)

SILTY SAND (SM), fine to medium grained, light gray, medium dense

POORLY GRADED SAND WITH SILT (SP-SM), fine to coarse grained, light gray, medium dense

SILTY SAND (SM), no recovery [83.5"-85" BGS], fine to medium grained, light gray, loose medium dense with trace limestone fragment, very dense

Boring Terminated at 110 Feet

Boring Log No. B4 (Bent 4)

W at er L ev el

O bs er va tio ns

D ep th

Ft

Facilities | Environmental | Geotechnical | Materials

Elevation: 144 (Ft.)

G ra p h ic

L o g

67.0

72.0

82.0

110.0

N=8

2-2-5 N=7

3-6-9 N=15

7-10-14 N=24

7-9-9 N=18

2-2-3 N=5

6-5-9 N=14

6-10-18 N=28

3-5-13 N=18

11-14-14 N=28

N=14-77/7"

Advancement Method Mud Rotary

Notes

Water Level Observations Groundwater encountered @ 7 ft BGS

See Exploration and Testing Procedures for a description of field and laboratory procedures used and additional data (If any).

See Supporting Information for explanation of symbols and abbreviations.

Elevation Reference: Elevation measured in the field in feet, NAVD 88.

G.W. Oliver Road over Little Lotts Creek

Hammer Type Automatic

G.W. Oliver Rd | Statesboro, GA

Terracon Project No. ES255161 Savannah, GA

2201 Rowland Ave

Drill Rig

DR 621

Driller

LP/NN

Logged by

LH

Boring Started 01-08-2026

Boring Completed 01-08-2026

Abandonment Method Boring backfilled with Auger Cuttings and/or Bentonite

S am pl e

T yp e

W at er C o n te n t

) Atterberg

Limits

LL-PL-PI

See Exploration PlanLocation:

Latitude: 32.3485° Longitude: -81.8059°

Depth (Ft.)

Pe rc en t

Fi n es

Fi el d T es t

R es u

142.5

TOPSOIL, with vegetation CLAYEY SAND (SC), fine to medium grained, red/orange/brown, medium dense

SILTY SAND (SM), fine to medium grained, brown/gray, loose

CLAYEY SAND (SC), fine to medium grained, gray, very loose

POORLY GRADED SAND WITH SILT (SP-SM), with trace pebbles, fine to coarse grained, light gray, medium dense

SILTY SAND (SM), fine to medium grained, light gray, very loose shelby tube [20'-22' ft BGS] loose

POORLY GRADED SAND WITH SILT (SP-SM), fine to medium grained, light gray, loose

SANDY LEAN CLAY (CL), light gray, soft medium stiff

SILTY SAND (SM), fine to medium grained, light gray, loose

SANDY LEAN CLAY (CL), light gray, medium stiff

SILTY SAND (SM), fine to medium grained, light gray, loose

SANDY LEAN CLAY (CL), light gray, medium stiff

Boring Log No. B2 (Bent 4)

W at er L ev el

O bs er va tio ns

D ep th

Ft

Facilities | Environmental | Geotechnical | Materials

Elevation: 143 (Ft.)

G ra p h ic

L o g

Hammer Efficiency = 77.2% WOH - Weight of Hammer

18.4

34.5

31.6

33.2

40-17-23

NP

NP

NP

0.5

4.0

8.0

12.0

17.0

27.0

32.0

42.0

47.0

52.0

57.0

29.2

15.4

13.1

12.5

4-6-6-6 N=12

4-5-7-5 N=12

4-4-2-1 N=6

3-3-1-1 N=4

N=WOH/24"

8-9-8 N=17

0-1-2 N=3

1-2-2 N=4

4-4-5 N=9

3-2-2 N=4

2-3-3 N=6

2-2-4 N=6

2-2-4 N=6

1-2-2 N=4

2-2-5

Advancement Method Mud Rotary

Notes

Water Level Observations Groundwater encountered @ 7 ft BGS

See Exploration and Testing Procedures for a description of field and laboratory procedures used and additional data (If any).

See Supporting Information for explanation of symbols and abbreviations.

Elevation Reference: Elevation measured in the field in feet, NAVD 88.

G.W. Oliver Road over Little Lotts Creek

Hammer Type Automatic

G.W. Oliver Rd | Statesboro, GA

Terracon Project No. ES255161 Savannah, GA

2201 Rowland Ave

Drill Rig

BR-2500

Driller Independent Drilling

Logged by

LH

Boring Started 08-26-2025

Boring Completed 08-26-2025

Abandonment Method Boring backfilled with Auger Cuttings and/or Bentonite

S am pl e

T yp e

W at er C o n te n t

) Atterberg

Limits

LL-PL-PI

See Exploration PlanLocation:

Latitude: 32.3485° Longitude: -81.8058°

Depth (Ft.)

Pe rc en t

Fi n es

Fi el d T es t

R es u

SANDY LEAN CLAY (CL), light gray, medium stiff (continued) stiff

CLAYEY SAND (SC), fine to medium grained, light gray, medium dense

SILTY SAND (SM), fine to medium grained, light gray, medium dense loose medium dense dense medium dense dense with trace limestone fragment, very dense

Boring Terminated at 115 Feet

Boring Log No. B2 (Bent 4)

W at er L ev el

O bs er va tio ns

D ep th

Ft

Facilities | Environmental | Geotechnical | Materials

Elevation: 143 (Ft.)

G ra p h ic

L o g

Hammer Efficiency = 77.2% WOH - Weight of Hammer

36.7 NP

67.0

77.0

115.0

15.8

N=7

3-4-5 N=9

4-6-14 N=20

9-11-10 N=21

7-9-11 N=20

0-2-3 N=5

6-4-9 N=13

9-15-18 N=33

6-9-12 N=21

10-14-17 N=31

N=50/6"

N=50/6"

Advancement Method Mud Rotary

Notes

Water Level Observations Groundwater encountered @ 7 ft BGS

See Exploration and Testing Procedures for a description of field and laboratory procedures used and additional data (If any).

See Supporting Information for explanation of symbols and abbreviations.

Elevation Reference: Elevation measured in the field in feet, NAVD 88.

G.W. Oliver Road over Little Lotts Creek

Hammer Type Automatic

G.W. Oliver Rd | Statesboro, GA

Terracon Project No. ES255161 Savannah, GA

2201 Rowland Ave

Drill Rig

BR-2500

Driller Independent Drilling

Logged by

LH

Boring Started 08-26-2025

Boring Completed 08-26-2025

Abandonment Method Boring backfilled with Auger Cuttings and/or Bentonite

S am pl e

T yp e

W at er C o n te n t

) Atterberg

Limits

LL-PL-PI

See Exploration PlanLocation:

Latitude: 32.3485° Longitude: -81.8058°

Depth (Ft.)

Pe rc en t

Fi n es

Fi el d T es t

R es u

B1 (Bent 1)B1 (Bent 1)

B1 (Bent 1)B1 (Bent 1)

B1 (Bent 1)B1 (Bent 1)

B1 (Bent 1)B1 (Bent 1)

B1 (Bent 1)B1 (Bent 1)

B1 (Bent 1)B1 (Bent 1)

B3 (Bent 1)B3 (Bent 1)

B3 (Bent 1)B3 (Bent 1)

B3 (Bent 1)B3 (Bent 1)

B4 (Bent 4)B4 (Bent 4)

B4 (Bent 4)B4 (Bent 4)

B4 (Bent 4)B4 (Bent 4)

B2 (Bent 4)B2 (Bent 4)

B2 (Bent 4)B2 (Bent 4)

B2 (Bent 4)B2 (Bent 4)

B2 (Bent 4)B2 (Bent 4)

B2 (Bent 4)B2 (Bent 4)

Facilities | Environmental |Geotechnical| Materials

B1 (Bent 1) 8-10 POORLY GRADED SAND WITH

SILT(SP-SM) 21.0 1.8 90.1 8.1 NP NP NP

B1 (Bent 1) 33.5-35 SILTY SAND(SM) 32.4 0.0 86.7 13.3 NP NP NP

B1 (Bent 1) 48.5-50 CLAYEY SAND(SC) 33.9 0.4 79.9 19.8 50 18 32

B1 (Bent 1) 63.5-65 CLAYEY SAND WITH GRAVEL(SC) 71.0 18.5 52.4 29.0 75 28 47

B1 (Bent 1) 83.5-85 SILTY SAND(SM) 31.9 0.0 87.2 12.8 NP NP NP

B1 (Bent 1) 103.5-105 POORLY GRADED SAND WITH

SILT(SP-SM) 31.8 0.1 88.0 11.9 NP NP NP

B3 (Bent 1) 13.5-15 CLAYEY SAND(SC) 35.3 0.0 62.4 37.6 58 23 35

B3 (Bent 1) 33.5-35 SILTY SAND(SM) 33.1 0.0 87.7 12.3 NP NP NP

B3 (Bent 1) 73.5-75 SILTY SAND(SM) 35.8 0.0 87.6 12.4 NP NP NP

B4 (Bent 4) 18.5-20 POORLY GRADED SAND WITH

SILT(SP-SM) 37.0 0.0 89.9 10.1 NP NP NP

B4 (Bent 4) 43.5-45 SILTY SAND(SM) 36.8 0.0 87.2 12.8 NP NP NP

B4 (Bent 4) 48.5-50 CLAYEY SAND(SC) 76.4 0.0 57.8 42.2 41 18 23

B2 (Bent 4) 8-10 CLAYEY SAND(SC) 18.4 0.0 70.8 29.2 40 17 23

B2 (Bent 4) 18.5-20 SILTY SAND(SM) 34.5 0.1 84.5 15.4 NP NP NP

B2 (Bent 4) 23.5-25 SILTY SAND(SM) 31.6 0.0 86.9 13.1 NP NP NP

B2 (Bent 4) 43.5-45 SILTY SAND(SM) 33.2 0.0 87.5 12.5 NP NP NP

B2 (Bent 4) 83.5-85 SILTY SAND(SM) 36.7 0.0 84.2 15.8 NP NP NP

Terracon Project No. ES255161

G.W. Oliver Rd | Statesboro, GA

G.W. Oliver Road over Little Lotts Creek

Boring ID Depth (Ft.)

Summary of Laboratory Results

Plastic Limit

Soil Classification

USCS

Savannah, GA

Water Content

% Gravel % Sand % Fines Liquid

Limit Plasticity

Index

2201 Rowland Ave

0 20 40 60 80 100 120 140

ASTM D4318

NP

NP

NP

NP

NP

NP

NP

NP

NP

NP

NP

8.1

13.3

19.8

29.0

12.8

11.9

37.6

12.3

12.4

10.1

12.8

42.2

29.2

15.4

13.1

12.5

15.8

SP-SM

SM

SC

SC

SM

SP-SM

SC

SM

SM

SP-SM

SM

SC

SC

SM

SM

SM

SM

NP

NP

NP

NP

NP

NP

NP

NP

NP

NP

NP

NP

NP

NP

NP

NP

NP

NP

NP

NP

NP

NP

NP

NP

8.1

13.3

19.8

29.0

12.8

11.9

37.6

12.3

12.4

10.1

12.8

42.2

29.2

15.4

13.1

12.5

15.8

SP-SM

SM

SC

SC

SM

SP-SM

SC

SM

SM

SP-SM

SM

SC

SC

SM

SM

SM

SM

NP

NP

NP

NP

NP

NP

NP

NP

NP

NP

NP

NP

NP

NP

NP

NP

NP

NP

NP

NP

POORLY GRADED SAND with SILT

SILTY SAND

CLAYEY SAND

CLAYEY SAND with GRAVEL

SILTY SAND

POORLY GRADED SAND with SILT

CLAYEY SAND

SILTY SAND

SILTY SAND

POORLY GRADED SAND with SILT

SILTY SAND

CLAYEY SAND

CLAYEY SAND

SILTY SAND

SILTY SAND

SILTY SAND

SILTY SAND

Atterberg Limit Results

MH or OH

CL

or O

L

CH

or

O H

"A" L ine

ML or OL

B1 (Bent 1)

B1 (Bent 1)

B1 (Bent 1)

B1 (Bent 1)

B1 (Bent 1)

B1 (Bent 1)

B3 (Bent 1)

B3 (Bent 1)

B3 (Bent 1)

B4 (Bent 4)

B4 (Bent 4)

B4 (Bent 4)

B2 (Bent 4)

B2 (Bent 4)

B2 (Bent 4)

B2 (Bent 4)

B2 (Bent 4)

FinesLL PL PI Fines USCS

Liquid Limit

Pl as ti ci ty I n d ex

CL - ML

"U " L ine

Laboratory tests are not valid if separated from original report.

8 - 10

33.5 - 35

48.5 - 50

63.5 - 65

83.5 - 85

103.5 - 105

13.5 - 15

33.5 - 35

73.5 - 75

18.5 - 20

43.5 - 45

48.5 - 50

8 - 10

18.5 - 20

23.5 - 25

43.5 - 45

83.5 - 85

Boring ID Depth (Ft)

Facilities | Environmental | Geotechnical | Materials

Description

2201 Rowland Ave

Savannah, GATerracon Project No. ES255161

G.W. Oliver Rd | Statesboro, GA

G.W. Oliver Road over Little Lotts Creek

0.0010.010.1110100

1.5 81 140

HydrometerU.S. Sieve Opening in Inches

Grain Size Distribution

3/4 1/23/8

D30 0.302 0.123 0.143

Pe rc en t

Fi n er b y

W ei g h t

Grain Size (mm)

30 403 60

U.S. Sieve Numbers

16 20

44 10063 2 10 14 506 200

Sand Silt or ClayCobbles coarse fine coarse finemedium

Gravel

Pe rc en t

Fi n er b y

W ei g h t

Percen t C o arser b y W eig h t

ASTM D422 / ASTM C136 / AASHTO T27

Boring ID

Facilities | Environmental | Geotechnical | Materials

4.24

D60 0.524 0.181 0.245

1.40

CU

Sieve % FinerSieve% Finer

Sieve% Finer

3/8" #4 #10 #20 #40 #60 #100 #140 #200

100.0 99.65 99.12 93.61 84.33 61.28 31.15 22.79 19.75

3/8" #4 #10 #20 #40 #60 #100 #140 #200

100.0 99.78 98.36 93.71 84.73 45.34 18.98 13.3

90.1

86.7

79.9

% Fines

Grain Size

D10 0.124

Coefficients

CC

Remarks

#10 #20 #40 #60 #100 #140 #200

100.0 98.21 96.87 84.19 49.46 19.35 11.14 9.1 8.08

1.8

0.0

0.4

% Cobbles % Gravel % Sand % Clay

0.0

0.0

0.0

% Silt

8.1

13.3

19.8

POORLY GRADED SAND with SILT

SILTY SAND

CLAYEY SAND

Description

8 - 10

33.5 - 35

48.5 - 50

Depth

B1 (Bent 1)

B1 (Bent 1)

B1 (Bent 1)

2201 Rowland Ave

Savannah, GATerracon Project No. ES255161

G.W. Oliver Rd | Statesboro, GA

G.W. Oliver Road over Little Lotts Creek

USCS

SP-SM

SM

SC

0.0010.010.1110100

1.5 81 140

HydrometerU.S. Sieve Opening in Inches

Grain Size Distribution

3/4 1/23/8

D30 0.084 0.126 0.127

Pe rc en t

Fi n er b y

W ei g h t

Grain Size (mm)

30 403 60

U.S. Sieve Numbers

16 20

44 10063 2 10 14 506 200

Sand Silt or ClayCobbles coarse fine coarse finemedium

Gravel

Pe rc en t

Fi n er b y

W ei g h t

Percen t C o arser b y W eig h t

ASTM D422 / ASTM C136 / AASHTO T27

Boring ID

Facilities | Environmental | Geotechnical | Materials

2.78

D60 1.483 0.185 0.181

1.38

#10 #20 #40 #60 #100 #140 #200

100.0 99.92 98.59 96.59 94.71 91.22 41.74 16.68 11.95

3/8" #4 #10 #20 #40 #60 #100 #140 #200

100.0 99.58 96.84 87.47 40.95 19.2 12.78

52.4

87.2

88.0

% Fines

Grain Size

D10

#10 #20 #40 #60 #100 #140 #200

100.0 81.47 64.48 51.67 44.98 40.27 35.19 32.01 29.03

18.5

0.1

% Cobbles % Gravel % Sand % Clay

0.0

0.0

0.0

% Silt

29.0

12.8

11.9

CLAYEY SAND with GRAVEL

SILTY SAND

POORLY GRADED SAND with SILT

63.5 - 65

83.5 - 85

103.5 - 105

Depth

B1 (Bent 1)

B1 (Bent 1)

B1 (Bent 1)

2201 Rowland Ave

Savannah, GATerracon Project No. ES255161

G.W. Oliver Rd | Statesboro, GA

G.W. Oliver Road over Little Lotts Creek

USCS

SC

SP-SM

0.0010.010.1110100

1.5 81 140

HydrometerU.S. Sieve Opening in Inches

Grain Size Distribution

3/4 1/23/8

D30 0.124 0.147

Pe rc en t

Fi n er b y

W ei g h t

Grain Size (mm)

30 403 60

U.S. Sieve Numbers

16 20

44 10063 2 10 14 506 200

Sand Silt or ClayCobbles coarse fine coarse finemedium

Gravel

Pe rc en t

Fi n er b y

W ei g h t

Percen t C o arser b y W eig h t

ASTM D422 / ASTM C136 / AASHTO T27

Boring ID

Facilities | Environmental | Geotechnical | Materials

2.85 3.12

D60 0.178 0.183 0.194

1.31 1.77

#20 #40 #60 #100 #140 #200

100.0 99.78 98.79 96.95 88.19 30.93 16.88 12.4

#4 #10 #20 #40 #60 #100 #140 #200

100.0 99.94 98.64 92.86 83.02 45.14 17.46 12.3

62.4

87.7

87.6

% Fines

Grain Size

D10

#10 #20 #40 #60 #100 #140 #200

100.0 99.96 99.19 95.3 84.66 47.73 40.8 37.63

0.0

% Cobbles % Gravel % Sand % Clay

0.0

0.0

0.0

% Silt

37.6

12.3

12.4

CLAYEY SAND

SILTY SAND

SILTY SAND

13.5 - 15

33.5 - 35

73.5 - 75

Depth

B3 (Bent 1)

B3 (Bent 1)

B3 (Bent 1)

2201 Rowland Ave

Savannah, GATerracon Project No. ES255161

G.W. Oliver Rd | Statesboro, GA

G.W. Oliver Road over Little Lotts Creek

USCS

SC

0.0010.010.1110100

1.5 81 140

HydrometerU.S. Sieve Opening in Inches

Grain Size Distribution

3/4 1/23/8

D30 0.153 0.142

Pe rc en t

Fi n er b y

W ei g h t

Grain Size (mm)

30 403 60

U.S. Sieve Numbers

16 20

44 10063 2 10 14 506 200

Sand Silt or ClayCobbles coarse fine coarse finemedium

Gravel

Pe rc en t

Fi n er b y

W ei g h t

Percen t C o arser b y W eig h t

ASTM D422 / ASTM C136 / AASHTO T27

Boring ID

Facilities | Environmental | Geotechnical | Materials

2.75

D60 0.203 0.186 0.165

1.57

#20 #40 #60 #100 #140 #200

100.0 99.87 98.08 91.76 78.67 55.88 47.47 42.2

#4 #10 #20 #40 #60 #100 #140 #200

97.47 32.86 15.05 12.79 100.0 99.91 99.54

89.9

87.2

57.8

% Fines

Grain Size

D10

#60 #100 #140 #200 #10 #20 #40

100.0 99.78 98.96 94.03 82.41 27.82 13.24 10.15

0.0

% Cobbles % Gravel % Sand % Clay

0.0

0.0

0.0

% Silt

10.1

12.8

42.2

POORLY GRADED SAND with SILT

SILTY SAND

CLAYEY SAND

18.5 - 20

43.5 - 45

48.5 - 50

Depth

B4 (Bent 4)

B4 (Bent 4)

B4 (Bent 4)

2201 Rowland Ave

Savannah, GATerracon Project No. ES255161

G.W. Oliver Rd | Statesboro, GA

G.W. Oliver Road over Little Lotts Creek

USCS

SP-SM

SC

0.0010.010.1110100

1.5 81 140

HydrometerU.S. Sieve Opening in Inches

Grain Size Distribution

3/4 1/23/8

D30 0.078 0.152 0.138

Pe rc en t

Fi n er b y

W ei g h t

Grain Size (mm)

30 403 60

U.S. Sieve Numbers

16 20

44 10063 2 10 14 506 200

Sand Silt or ClayCobbles coarse fine coarse finemedium

Gravel

Pe rc en t

Fi n er b y

W ei g h t

Percen t C o arser b y W eig h t

ASTM D422 / ASTM C136 / AASHTO T27

Boring ID

Facilities | Environmental | Geotechnical | Materials

D60 0.173 0.202 0.226

#10 #20 #40 #60 #100 #140 #200

100.0 99.8 98.33 87.45 66.66 33.47 18.88 13.13

#4 #10 #20 #40 #60 #100 #140 #200

100.0 99.92 99.56 98.57 94.53 82.53 28.47 17.77 15.42

70.8

84.5

86.9

% Fines

Grain Size

D10

#4 #10 #20 #40 #60 #100 #140 #200

100.0 99.96 99.81 98.64 94.99 81.26 51.89 36.77 29.18

0.1

0.0

% Cobbles % Gravel % Sand % Clay

0.0

0.0

0.0

% Silt

29.2

15.4

13.1

CLAYEY SAND

SILTY SAND

8 - 10

18.5 - 20

23.5 - 25

Depth

B2 (Bent 4)

B2 (Bent 4)

B2 (Bent 4)

2201 Rowland Ave

Savannah, GATerracon Project No. ES255161

G.W. Oliver Rd | Statesboro, GA

G.W. Oliver Road over Little Lotts Creek

USCS

SC

0.0010.010.1110100

1.5 81 140

HydrometerU.S. Sieve Opening in Inches

Grain Size Distribution

3/4 1/23/8

D30 0.155 0.123

Pe rc en t

Fi n er b y

W ei g h t

Grain Size (mm)

30 403 60

U.S. Sieve Numbers

16 20

44 10063 2 10 14 506 200

Sand Silt or ClayCobbles coarse fine coarse finemedium

Gravel

Pe rc en t

Fi n er b y

W ei g h t

Percen t C o arser b y W eig h t

ASTM D422 / ASTM C136 / AASHTO T27

Boring ID

Facilities | Environmental | Geotechnical | Materials

3.99

D60 0.193 0.194

2.59

#20 #40 #60 #100 #140 #200

100.0 99.44 88.49 79.47 39.86 22.25 15.79

87.5

84.2

% Fines

Grain Size

D10

#20 #40 #60 #100 #140 #200

100.0 99.94 99.58 95.81 25.27 14.47 12.5

% Cobbles % Gravel % Sand % Clay

0.0

0.0

% Silt

12.5

15.8

SILTY SAND

43.5 - 45

83.5 - 85

Depth

B2 (Bent 4)

B2 (Bent 4)

2201 Rowland Ave

Savannah, GATerracon Project No. ES255161

G.W. Oliver Rd | Statesboro, GA

G.W. Oliver Road over Little Lotts Creek

USCS

Client

1/16/2026

B3 B3 B4 6.0-8.0' 58.5-60.0' 33.5-35.0'

AASHTO T289 5.3 6.8 6.5

ASTM C1580 20 97 70

AWWA 4500-S,D Nil Nil Nil

ASTM D512 21 Nil 31

ASTM G200 445.6 486.8 445.0

AWWA 2520 B 56 65 75

ASTM G57 30000 1200 4800

These tests were performed in general accordance with the applicable AASHTO, ASTM, and AWWA test methods. This report is exclusively for the use of the client indicated above and shall not be reproduced without the full written consent of Terracon Consultants Inc.. Test results transmitted herein are only applicable to the actual samples tested at the location(s) referenced and are not necessarily indicative of the properties of other apparently similar materials.

Myles Warner

1/21/2026

Verified By:

Acidity (pH)

Water Soluble Sulfate Ion Content (mg/Kg)

Water Soluble Sulfide Content (mg/Kg)

Water Soluble Chloride Ion Content (mg/Kg)

Corrosivity Suite - Results

Sample Location

Project Kimley-Horn and Associates Inc GW Oliver Road BFI

Savannah, GA ES255161

Date Received:

Sample Depth (ft.)

Oxidation-Reduction Potential (RmV)

Total Dissolved Salts (mg/Kg)

Electrical Resistivity (Ω·cm)

ANALYTICAL REPORT

PREPARED FOR

Attn: Leah Moore

Terracon Consultants, Inc.

2201 Rowland Avenue

Savannah, Georgia 31404 Generated 12/11/2025 2:57:48 PM

JOB DESCRIPTION

GW Oliver Road

JOB NUMBER

680-268514-1

See page two for job notes and contact information.

Savannah GA 31404 5102 LaRoche Avenue Eurofins Savannah

Eurofins Savannah

Eurofins Savannah is a laboratory within Eurofins Environment Testing Southeast, LLC, a company within Eurofins Environment Testing Group of Companies

Job Notes This report may not be reproduced except in full, and with written approval from the laboratory. The results relate only to the samples tested. For questions please contact the Project Manager at the e-mail address or telephone number listed on this page.

The test results in this report relate only to the samples as received by the laboratory and will meet all requirements of the methodology, with any exceptions noted. This report shall not be reproduced except in full, without the express written approval of the laboratory. All questions should be directed to the Eurofins Environment Testing Southeast, LLC Project Manager.

Authorization

Generated

12/11/2025 2:57:48 PM

Authorized for release by Nikita Kuruganty, Project Manager Nikita.Kuruganty@et.eurofinsus.com (912)354-7858

Page 2 of 15 12/11/2025

Sample Summary Client: Terracon Consultants, Inc. Job ID: 680-268514-1 Project/Site: GW Oliver Road

Lab Sample ID Client Sample ID Matrix Collected Received Sample Origin

680-268514-1 Upstream Water 12/04/25 11:25 12/04/25 13:49 Georgia

680-268514-2 Downstream Water 12/04/25 11:32 12/04/25 13:49 Georgia

Eurofins Savannah

Page 3 of 15 12/11/2025

Method Summary Job ID: 680-268514-1Client: Terracon Consultants, Inc.

Project/Site: GW Oliver Road

Method Method Description LaboratoryProtocol

MCAWW300.0-1993 R2.1 Anions, Ion Chromatography EET SAV

SM2510B-2011 Conductivity, Specific Conductance EET SAV

Protocol References:

MCAWW = "Methods For Chemical Analysis Of Water And Wastes", EPA-600/4-79-020, March 1983 And Subsequent Revisions.

SM = "Standard Methods For The Examination Of Water And Wastewater"

Laboratory References:

EET SAV = Eurofins Savannah, 5102 LaRoche Avenue, Savannah, GA 31404, TEL (912)354-7858

Eurofins Savannah

Page 4 of 15 12/11/2025

Definitions/Glossary

Project/Site: GW Oliver Road

Qualifiers

HPLC/IC

Qualifier Description

E Result exceeded calibration range.

Qualifier

U Indicates the analyte was analyzed for but not detected.

General Chemistry Qualifier Description

U Indicates the analyte was analyzed for but not detected.

Qualifier

Glossary

These commonly used abbreviations may or may not be present in this report.

☼ Listed under the "D" column to designate that the result is reported on a dry weight basis

Abbreviation

%R Percent Recovery

CFL Contains Free Liquid

CFU Colony Forming Unit

CNF Contains No Free Liquid

DER Duplicate Error Ratio (normalized absolute difference)

Dil Fac Dilution Factor

DL Detection Limit (DoD/DOE)

DL, RA, RE, IN Indicates a Dilution, Re-analysis, Re-extraction, or additional Initial metals/anion analysis of the sample

DLC Decision Level Concentration (Radiochemistry)

EDL Estimated Detection Limit (Dioxin)

LOD Limit of Detection (DoD/DOE)

LOQ Limit of Quantitation (DoD/DOE)

MCL EPA recommended "Maximum Contaminant Level"

MDA Minimum Detectable Activity (Radiochemistry)

MDC Minimum Detectable Concentration (Radiochemistry)

MDL Method Detection Limit

ML Minimum Level (Dioxin)

MPN Most Probable Number

MQL Method Quantitation Limit

NC Not Calculated

ND Not Detected at the reporting limit (or MDL or EDL if shown)

NEG Negative / Absent

POS Positive / Present

PQL Practical Quantitation Limit

PRES Presumptive

QC Quality Control

RER Relative Error Ratio (Radiochemistry)

RL Reporting Limit or Requested Limit (Radiochemistry)

RPD Relative Percent Difference, a measure of the relative difference between two points

TEF Toxicity Equivalent Factor (Dioxin)

TEQ Toxicity Equivalent Quotient (Dioxin)

TNTC Too Numerous To Count

Eurofins Savannah

Page 5 of 15 12/11/2025

Job Narrative 680-268514-1

The analytical test results presented in this report meet all requirements of the associated regulatory program listed on the Accreditation/Certification Summary Page, unless otherwise noted. Data qualifiers and/or narrative comments are included to explain any exceptions, if applicable. Regulated compliance samples (e.g. SDWA, NPDES) must comply with associated agency requirements/permits.

Matrix-specific batch QC (e.g., MS, MSD, SD) may not be reported when insufficient sample volume is available or when site-specific QC samples are not submitted. In such cases, a Laboratory Control Sample Duplicate (LCSD) may be analyzed to provide precision data for the batch.

For samples analyzed using surrogate and/or isotope dilution analytes, any recoveries falling outside of established acceptance criteria are re-prepared and/or re-analyzed to confirm results, unless the deviation is due to sample dilution or otherwise explained in the case narrative.

Receipt The samples were received on 12/4/2025 1:49 PM. Unless otherwise noted below, the samples arrived in good condition, and, where required, properly preserved and on ice. The temperature of the cooler at receipt time was 1.9°C.

HPLC/IC

Method 300_ORGFM_28D: The native sample, matrix spike, and matrix spike duplicate (MS/MSD) associated with analytical batch 680-887526 were performed at the same dilution. Due to the additional level of analyte present in the spiked samples, the concentration of Chloride in the MS/MSD was above the instrument calibration range. The data have been reported and qualified.

No additional analytical or quality issues were noted, other than those described above or in the Definitions/ Glossary page.

General Chemistry No additional analytical or quality issues were noted, other than those described above or in the Definitions/ Glossary page.

Case Narrative Client: Terracon Consultants, Inc. Job ID: 680-268514-1 Project: GW Oliver Road

Eurofins Savannah

Job ID: 680-268514-1 Eurofins Savannah

Page 6 of 15 12/11/2025

Detection Summary

Project/Site: GW Oliver Road

Client Sample ID: Upstream Lab Sample ID: 680-268514-1

Sulfate

RL

5.00 mg/L

MDL

2.00

Analyte Result Qualifier Unit Dil Fac D Method Prep Type

Total/NA512.9 300.0-1993 R2.1

Chloride 2.50 mg/L1.00 Total/NA547.2 300.0-1993 R2.1

Specific Conductance 5.00 umho/cm @

25C

5.00 Total/NA1394 2510B-2011

Client Sample ID: Downstream Lab Sample ID: 680-268514-2

Sulfate

RL

5.00 mg/L

MDL

2.00

Analyte Result Qualifier Unit Dil Fac D Method Prep Type

Total/NA512.9 300.0-1993 R2.1

Chloride 2.50 mg/L1.00 Total/NA547.0 300.0-1993 R2.1

Specific Conductance 5.00 umho/cm @

25C

5.00 Total/NA1393 2510B-2011

Eurofins Savannah

This Detection Summary does not include radiochemical test results.

Page 7 of 15 12/11/2025

Hatch, Micah Text Box Upstream:

Electrical Resistivity = 1/specific conductance = 1/394 = 0.002538 uohm-cm x 1x10^6 = 2,500 ohm-cm Acidity (pH) - 6.97

Downstream:

Electrical Resistivity = 1/specific conductance = 1/393 = 0.002544 uohm-cm x 1x10^6 = 2,500 ohm-cm Acidity (pH) - 7.01

Client Sample Results

Project/Site: GW Oliver Road

Lab Sample ID: 680-268514-1Client Sample ID: Upstream Matrix: WaterDate Collected: 12/04/25 11:25

Date Received: 12/04/25 13:49

Method: MCAWW 300.0-1993 R2.1 - Anions, Ion Chromatography

RL MDL

12.9 5.00 2.00 mg/L 12/06/25 16:10 5

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Sulfate

2.50 1.00 mg/L 12/06/25 16:10 547.2Chloride

General Chemistry

RL MDL

394 5.00 5.00 umho/cm @

25C

12/11/25 09:46 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Specific Conductance (SM 2510B-2011)

5.00 5.00 Mohm-cm 12/11/25 09:46 15.00 UResistivity (SM 2510B-2011)

Lab Sample ID: 680-268514-2Client Sample ID: Downstream Matrix: WaterDate Collected: 12/04/25 11:32

Date Received: 12/04/25 13:49

Method: MCAWW 300.0-1993 R2.1 - Anions, Ion Chromatography

RL MDL

12.9 5.00 2.00 mg/L 12/06/25 17:02 5

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Sulfate

2.50 1.00 mg/L 12/06/25 17:02 547.0Chloride

General Chemistry

RL MDL

393 5.00 5.00 umho/cm @

25C

12/11/25 09:44 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Specific Conductance (SM 2510B-2011)

5.00 5.00 Mohm-cm 12/11/25 09:44 15.00 UResistivity (SM 2510B-2011)

Eurofins Savannah

Page 8 of 15 12/11/2025

QC Sample Results

Project/Site: GW Oliver Road

Method: 300.0-1993 R2.1 - Anions, Ion Chromatography

Client Sample ID: Method BlankLab Sample ID: MB 680-887526/2 Matrix: Water Prep Type: Total/NA Analysis Batch: 887526

RL MDL

Sulfate 0.400 U 1.00 0.400 mg/L 12/06/25 11:47 1

MB MB

Analyte Dil FacAnalyzedPreparedDUnitResult Qualifier

0.200 U 0.2000.500 mg/L 12/06/25 11:47 1Chloride

Client Sample ID: Lab Control SampleLab Sample ID: LCS 680-887526/3 Matrix: Water Prep Type: Total/NA Analysis Batch: 887526

Sulfate 10.0 9.062 mg/L

Analyte

LCS LCS

UnitResult Qualifier

Spike

Added

91 90 - 110

D %Rec

%Rec

Limits

Chloride 10.0 9.407 mg/L 94 90 - 110

Client Sample ID: Lab Control Sample DupLab Sample ID: LCSD 680-887526/4 Matrix: Water Prep Type: Total/NA Analysis Batch: 887526

Sulfate 10.0 9.051 mg/L 0 15

Analyte

LCSD LCSD

UnitResult Qualifier

Spike

Added LimitRPD

RPD

91 90 - 110

D %Rec

%Rec

Limits

Chloride 10.0 9.385 mg/L 0 1594 90 - 110

Client Sample ID: UpstreamLab Sample ID: 680-268514-1 MS Matrix: Water Prep Type: Total/NA Analysis Batch: 887526

Sulfate 12.9 50.0 56.18 mg/L

Analyte

MS MS

UnitResult Qualifier

Spike

Added

Sample

Result

Sample

Qualifier

87 80 - 120

D %Rec

%Rec

Limits

Chloride 47.2 50.0 101.8 E mg/L 109 80 - 120

Client Sample ID: UpstreamLab Sample ID: 680-268514-1 MSD Matrix: Water Prep Type: Total/NA Analysis Batch: 887526

Sulfate 12.9 50.0 56.10 mg/L 0 15

Analyte

MSD MSD

UnitResult Qualifier

Spike

Added

Sample

Result

Sample

Qualifier LimitRPD

RPD

86 80 - 120

D %Rec

%Rec

Limits

Chloride 47.2 50.0 101.8 E mg/L 0 15109 80 - 120

Method: 2510B-2011 - Conductivity, Specific Conductance

Client Sample ID: Method BlankLab Sample ID: MB 680-887610/4 Matrix: Water Prep Type: Total/NA Analysis Batch: 887610

RL MDL

Specific Conductance 5.00 U 5.00 5.00 umho/cm @

25C

12/11/25 09:34 1

MB MB

Analyte Dil FacAnalyzedPreparedDUnitResult Qualifier

5.00 U 5.005.00 Mohm-cm 12/11/25 09:34 1Resistivity

Eurofins Savannah

Page 9 of 15 12/11/2025

QC Sample Results

Project/Site: GW Oliver Road

Method: 2510B-2011 - Conductivity, Specific Conductance (Continued)

Client Sample ID: Lab Control SampleLab Sample ID: LCS 680-887610/5 Matrix: Water Prep Type: Total/NA Analysis Batch: 887610

Specific Conductance 1000 996.0 umho/cm

@ 25C

Analyte

LCS LCS

UnitResult Qualifier

Spike

Added

100 90 - 110

D %Rec

%Rec

Limits

Client Sample ID: Lab Control Sample DupLab Sample ID: LCSD 680-887610/35 Matrix: Water Prep Type: Total/NA Analysis Batch: 887610

Specific Conductance 1000 1000 umho/cm

@ 25C

0 10

Analyte

LCSD LCSD

UnitResult Qualifier

Spike

Added LimitRPD

RPD

100 90 - 110

D %Rec

%Rec

Limits

Eurofins Savannah

Page 10 of 15 12/11/2025

QC Association Summary

Project/Site: GW Oliver Road

HPLC/IC

Analysis Batch: 887526

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Water 300.0-1993 R2.1680-268514-1 Upstream Total/NA

Water 300.0-1993 R2.1680-268514-2 Downstream Total/NA

Water 300.0-1993 R2.1MB 680-887526/2 Method Blank Total/NA

Water 300.0-1993 R2.1LCS 680-887526/3 Lab Control Sample Total/NA

Water 300.0-1993 R2.1LCSD 680-887526/4 Lab Control Sample Dup Total/NA

Water 300.0-1993 R2.1680-268514-1 MS Upstream Total/NA

Water 300.0-1993 R2.1680-268514-1 MSD Upstream Total/NA

General Chemistry

Analysis Batch: 887610

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Water 2510B-2011680-268514-1 Upstream Total/NA

Water 2510B-2011680-268514-2 Downstream Total/NA

Water 2510B-2011MB 680-887610/4 Method Blank Total/NA

Water 2510B-2011LCS 680-887610/5 Lab Control Sample Total/NA

Water 2510B-2011LCSD 680-887610/35 Lab Control Sample Dup Total/NA

Eurofins Savannah

Page 11 of 15 12/11/2025

Lab Chronicle

Project/Site: GW Oliver Road

Client Sample ID: Upstream Lab Sample ID: 680-268514-1 Matrix: WaterDate Collected: 12/04/25 11:25

Date Received: 12/04/25 13:49

Analysis 300.0-1993 R2.1 AS12/06/25 16:105 EET SAV887526

Type

Batch

Method

Batch

Prep Type LabAnalystRun

Prepared or Analyzed

Initial

Amount Amount

Final Batch

NumberFactor

Dil

Total/NA 2 mL 2 mL

Instrument ID: CICR

Analysis 2510B-2011 1…