FY26 004 North Boyd Rd and Stilley Station Rd Geotechnical Information Report.pdf

1029 West South Street, Raleigh, North Carolina 27603 • O: 919-792-1900 • F: 866-311-7206

Beaufort County North Boyd Rd. & Stilley Station Rd.

Geotechnical Information

DCN: Data Transmittal Letter Date: 1/28/05 Rev.: 1 DCN: Data Transmittal Letter Date: 1/28/05 Rev.: 1

, 2025

Project No. R-2025-33 -001

Cooper Dalton Garrett & Moore 1029 West South St.

Raleigh, NC 27603 cdalton@garrett-moore.com Transmittal Laboratory Test Results

Please find attached the laboratory test results for the above referenced project. The tests were outlined on the Project Verification Form that was transmitted to your firm. The testing was performed in general accordance with the methods listed on the enclosed data sheets. The test results are believed to be representative of the samples that were submitted for testing and are indicative only of the specimens which were evaluated. We have no direct knowledge of the origin of the samples and imply no position with regard to the nature of the test results, i.e., pass/fail and no claims as to the suitability of the material for its intended use.

The test data and all associated project information provided shall be held in strict confidence and disclosed to other parties only with authorization by our Client. The test data submitted herein is considered integral with this report and is not to be reproduced except in whole and only with the authorization of the Client and Geotechnics. The remaining sample materials for this project will be retained for a minimum of 90 days as directed by the Geotechnics’ Quality Program.

We are pleased to provide these testing services. Should you have any questions or if we may be of further assistance, please contact our office.

Respectively submitted, Geotechnics, Inc.

Michael P. Smith VP Regional Manager

We understand that you have a choice in your laboratory services and we thank you for choosing Geotechnics.

MOISTURE CONTENT

ASTM D 2216-19

Client: Garrett & Moore Client Reference: Beaufort County Project No.: R-2025-333-001

Lab ID: 001 002 003 004 005 Boring No.: SSR-TP-3 SSR-TP-6 SSR-TP-7 NBR-TP-2 NBR-TP-3 Depth (ft): -7 -8 -5 -7 -8 Sample No.: B-1 B-2 B-3 B-4 B-5

Tare Number 400 41-A 28-A 733 739 Wt. of Tare & Wet Sample (g) 514.79 535.16 537.94 501.05 513.83 Wt. of Tare & Dry Sample (g) 466.96 498.61 490.12 464.27 467.62 Weight of Tare (g) 134.02 136.07 139.35 141.35 142.48 Weight of Water (g) 47.83 36.55 47.82 36.78 46.21 Weight of Dry Sample (g) 332.94 362.54 350.77 322.92 325.14

Water Content (%) 14.4 10.1 13.6 11.4 14.2

Lab ID 006 Boring No. NBR-TP-7 Depth (ft) -7 Sample No. B-6

Tare Number 469 Wt. of Tare & Wet Sample (g) 508.21 Wt. of Tare & Dry Sample (g) 473.18 Weight of Tare (g) 145.98 Weight of Water (g) 35.03 Weight of Dry Sample (g) 327.20

Water Content (%) 10.7

Notes :

Tested By BS Date 11/30/25 Checked By AES Date 12/5/25 page 1 of 1 DCN: CT-S1 DATE: 3/18/13 REVISION: 4

North Boyd Road Site Geotechnical Data &

Test Pit Photos November 2025

Client: Garrett & Moore Boring No.: NBR-TP-2 Client Reference: Beaufort County Depth (ft): -7 Project No.: R-2025-333-001 Sample No.: B-4 Lab ID: R-2025-333-001-004 Soil Color: Gray Brown

SIEVE ANALYSIS HYDROMETER

gravel sand silt and clay

USCS Symbol: D50 = 0.13

SC-SM, TESTED

USCS Classification:

SILTY, CLAYEY SAND

Tested By MFP Date 12/1/25 Checked By AES Date 12/2/25 page 1 of 2 DCN: CT-S73T, DATE 2/25/22, REV. 1

SIEVE AND HYDROMETER ANALYSIS

ASTM D6913 / D7928

USCS

#200#412" 6" 3" 3/4" 3/8" #10 #20 #40 #100

0.0010.010.11101001000

Pe rc en t F in er

B y

W ei gh t

Particle Diameter (mm)

Client: Garrett & Moore Boring No.: NBR-TP-2

Project No.: R-2025-333-001 Sample No.: B-4 Lab ID: R-2025-333-001-004 Soil Color: Gray Brown

Moisture Content of Passing 3/4" Material Moisture Content of Retained 3/4" Material

Tare No.: Tare No.: NA Wt. of Tare & Wet Sample (g): Weight of Tare & Wet Sample (g): NA Wt. of Tare & Dry Sample (g): Weight of Tare & Dry Sample (g): NA Weight of Tare (g): Weight of Tare (g): NA Weight of Water (g): Weight of Water (g): NA Weight of Dry Soil (g): Weight of Dry Soil (g): NA

Moisture Content (%): Moisture Content (%): 0.0

Dry Weight of Sample (g): Total Dry Weight of Sample (g): 322.92 Tare No. (Sub-Specimen) Wet Weight of +3/4" Sample (g): 0.00 Wt. of Tare & Wet Sub-Specimen (g): Dry Weight of + 3/4" Sample (g): 0.00 Weight of Tare (g): Dry Weight of - 3/4" Sample (g): 322.92 Sub-Specimen Wet Weight (g): Dry Weight -3/4" +3/8" Sample (g): 0.00 Tare No. (-3/8" Sub-Specimen): Dry Weight of -3/8" Sample (g): 322.92 Wt. of Tare & Wet -3/8" Sub-Specimen (g): J - Factor (% Finer than 3/4"): NA Weight of Tare (g): J - Factor (% Finer than 3/8"): NA Sub-Specimen -3/8" Wet Weight (g):

Sieve Sieve Weight of Soil Percent Accumulated PercentAccumulated Size Opening Retained Retained Percent Finer Percent

Retained Finer

(mm) (g) (%) (%) (%) (%)

12" 300 0.00 0.00 0.00 100.00 100.0 6" 150 0.00 0.00 0.00 100.00 100.0 3" 75 0.00 0.00 0.00 100.00 100.0 2" 50 0.00 ( * ) 0.00 0.00 100.00 100.0

1 1/2" 37.5 0.00 0.00 0.00 100.00 100.0 1" 25 0.00 0.00 0.00 100.00 100.0

3/4" 19 0.00 0.00 0.00 100.00 100.0 1/2" 12.5 0.00 0.00 0.00 100.00 100.0 3/8" 9.5 0.00 0.00 0.00 100.00 100.0 #4 4.75 0.00 0.00 0.00 100.00 100.0

#10 2 0.03 0.01 0.01 99.99 100.0 #20 0.85 0.68 ( ** ) 0.21 0.22 99.78 99.8 #40 0.425 6.73 2.08 2.30 97.70 97.7 #60 0.25 26.13 8.09 10.40 89.60 89.6 #100 0.15 78.92 24.44 34.84 65.16 65.2 #140 0.106 97.68 30.25 65.08 34.92 34.9 #200 0.075 24.14 7.48 72.56 27.44 27.4 Pan - 88.61 27.44 100.00 - -

Notes : ( * ) The + 3/4" sieve analysis is based on the Total Dry Weight of the Sample ( ** ) The - 3/4" and - 3/8" sieve analysis is based on the Weight of the Dry Specimen

Tested By MFP Date 12/1/25 Checked By AES Date 12/2/25 page 2 of 2 DCN: CT-S73T, DATE 2/25/22, REV. 1

WASH SIEVE ANALYSIS

ASTM D6913-17

359.70

501.05 464.27 141.35 36.78

322.92

NA

NA

NA

NA

11.4

NA

501.05 141.35

ATTERBERG LIMITS

ASTM D 4318-17

Client: Garrett & Moore Boring No.: NBR-TP-2 Client Reference: Beaufort County Depth (ft): -7 Project No.: R-2025-333-001 Sample No.: B-4 Lab ID: R-2025-333-001-004 Soil Description: GRAY BROWN SILTY CLAY Note: The USCS symbol used with this test refers only to the minus No. 40 (Minus #40 sieve material, Air dried) sieve material. See the "Sieve and Hydrometer Analysis" graph page for the complete material description .

1 2 3 M Tare Number: B-4 A-L KP U Wt. of Tare & Wet Sample (g): 29.41 28.71 30.52 L Wt. of Tare & Dry Sample (g): 27.17 26.52 27.90 T Weight of Tare (g): 15.37 15.41 15.41 I Weight of Water (g): 2.2 2.2 2.6 P Weight of Dry Sample (g): 11.8 11.1 12.5 O Was As Received MC Preserved: I Moisture Content (%): 19.0 19.7 21.0 N Number of Blows: 30 22 15 T

Plastic Limit Test 1 2 Range Test Results

Tare Number: 2 13 Liquid Limit (%): 19 Wt. of Tare & Wet Sample (g): 16.16 16.13 Wt. of Tare & Dry Sample (g): 14.97 14.93 Plastic Limit (%): 15 Weight of Tare (g): 7.05 7.02 Weight of Water (g): 1.2 1.2 Plasticity Index (%): 4 Weight of Dry Sample (g): 7.9 7.9

USCS Symbol: CL-ML Moisture Content (%): 15.0 15.2 -0.1 Note: The acceptable range of the two Moisture Contents is ± 0.84

Flow Curve Plasticity Chart

Tested By CB Date 12/2/25 Checked By AES Date 12/3/25 page 1 of 1 DCN: CTS4B, DATE: 5/22/18 REVISION: 8

Yes

ASTM D2216-19

11.4

322.9 36.8

141.35 464.27 501.05

Liquid Limit TestAs Received Moisture Content

1 10 100

W at er C on te nt

Number of Blows

0 20 40 60 80 100

Pl as tic ity

In de x

Liquid Limit (%)

CL CH

MH

CL- ML

ML

MOISTURE - DENSITY RELATIONSHIP

ASTM D698-12

Client: Garrett & Moore Boring No.: SSR-TP-7 Client Reference: Beaufort County Depth (ft): -5 Project No.: R-2025-333-001 Sample No.: B-3 Lab ID: R-2025-333-001-004 Test Method STANDARD

Visual Description: Gray Brown Silty,Clayey Sand

Optimum Moisture Content (%): 15.7 Maximum Dry Density (pcf): 111.4

Tested By MFP Date 12/2/25 Checked By AES Date 12/3/25 page 1 of 2 DCN:CT-S12 DATE: 4/21/23 REVISION: 17

10 15 20 25 30

D en si ty

(p cf

Moisture Content (%)

Specific Gravity 2.70 Assumed

Client: Garrett & Moore Boring No.: SSR-TP-7 Client Reference: Beaufort County Depth (ft): -5 Project No.: R-2025-333-001 Sample No.: B-3 Lab ID: R-2025-333-001-004

Visual Description: Gray Brown Silty,Clayey Sand

Total Weight of the Sample (g): 20650 Test Type: STANDARD As Received Water Content (%): NA Rammer Weight (lb): 5.5 Assumed Specific Gravity: 2.70 Rammer Drop (in): 12

Rammer Type: MECHANICAL Percent Retained on 3/4": NA Machine ID: R174 Percent Retained on 3/8": NA Mold ID: R607 Percent Retained on #4: NA Mold diameter: 4" Oversize Material: Not included Weight of the Mold (g): 4231 Procedure Used: B Volume of the Mold (cm3): 937

Mold / Specimen

Point No. 1 2 3 4 5 Weight of Mold & Wet Sample (g): 6015 6071 6148 6170 6132 Weight of Mold (g): 4231 4231 4231 4231 4231 Weight of Wet Sample (g): 1785 1840 1918 1940 1902 Mold Volume (cm3): 937 937 937 937 937

Moisture Content / Density

Tare Number: 20-A 485 19-A 428 16-A Weight of Tare & Wet Sample (g): 365.40 376.20 342.90 368.80 380.10 Weight of Tare & Dry Sample (g): 339.81 345.11 309.71 330.67 333.64 Weight of Tare (g): 91.90 99.60 87.60 99.20 91.20 Weight of Water (g): 25.59 31.09 33.19 38.13 46.46 Weight of Dry Sample (g): 247.91 245.51 222.11 231.47 242.44

Wet Density (g/cm3): 1.91 1.96 2.05 2.07 2.03 Wet Density (pcf): 118.9 122.6 127.8 129.2 126.7 Moisture Content (%): 10.3 12.7 14.9 16.5 19.2 Dry Density (pcf): 107.8 108.8 111.2 110.9 106.3

Zero Air Voids

Moisture Content (%): 16.0 21.0 26.0 Dry Unit Weight (pcf): 117.7 107.5 99.0

Tested By MFP Date 12/2/25 Checked By AES Date 12/3/25 page 2 of 2 DCN:CT-S12 DATE: 4/21/23 REVISION: 17

Client: Garrett & Moore Boring No.: NBR-TP-3 Client Reference: Beaufort County Depth (ft): -8 Project No.: R-2025-333-001 Sample No.: B-5 Lab ID: R-2025-333-001-005 Soil Color: Gray Brown

USCS Symbol: D50 = 0.13

SM, TESTED

SILTY SAND

Tested By MFP Date 12/1/25 Checked By AES Date 12/2/25 page 1 of 2 DCN: CT-S73T, DATE 2/25/22, REV. 1

SIEVE AND HYDROMETER ANALYSIS

ASTM D6913 / D7928

USCS

#200#412" 6" 3" 3/4" 3/8" #10 #20 #40 #100

0.0010.010.11101001000

Pe rc en t F in er

B y

W ei gh

Client: Garrett & Moore Boring No.: NBR-TP-3

Project No.: R-2025-333-001 Sample No.: B-5 Lab ID: R-2025-333-001-005 Soil Color: Gray Brown

Moisture Content of Passing 3/4" Material Moisture Content of Retained 3/4" Material

Wt. of Tare & Wet Sample (g): Weight of Tare & Wet Sample (g): NA Wt. of Tare & Dry Sample (g): Weight of Tare & Dry Sample (g): NA Weight of Tare (g): Weight of Tare (g): NA Weight of Water (g): Weight of Water (g): NA Weight of Dry Soil (g): Weight of Dry Soil (g): NA

Moisture Content (%): Moisture Content (%): 0.0

Dry Weight of Sample (g): Total Dry Weight of Sample (g): 325.14 Tare No. (Sub-Specimen) Wet Weight of +3/4" Sample (g): 0.00 Wt. of Tare & Wet Sub-Specimen (g): Dry Weight of + 3/4" Sample (g): 0.00 Weight of Tare (g): Dry Weight of - 3/4" Sample (g): 325.14 Sub-Specimen Wet Weight (g): Dry Weight -3/4" +3/8" Sample (g): 0.00 Tare No. (-3/8" Sub-Specimen): Dry Weight of -3/8" Sample (g): 325.14 Wt. of Tare & Wet -3/8" Sub-Specimen (g): J - Factor (% Finer than 3/4"): NA Weight of Tare (g): J - Factor (% Finer than 3/8"): NA Sub-Specimen -3/8" Wet Weight (g):

Sieve Sieve Weight of Soil Percent Accumulated PercentAccumulated Size Opening Retained Retained Percent Finer Percent

Retained Finer

(mm) (g) (%) (%) (%) (%)

12" 300 0.00 0.00 0.00 100.00 100.0 6" 150 0.00 0.00 0.00 100.00 100.0 3" 75 0.00 0.00 0.00 100.00 100.0 2" 50 0.00 ( * ) 0.00 0.00 100.00 100.0

1 1/2" 37.5 0.00 0.00 0.00 100.00 100.0 1" 25 0.00 0.00 0.00 100.00 100.0

3/4" 19 0.00 0.00 0.00 100.00 100.0 1/2" 12.5 0.00 0.00 0.00 100.00 100.0 3/8" 9.5 0.00 0.00 0.00 100.00 100.0 #4 4.75 0.00 0.00 0.00 100.00 100.0

#10 2 0.00 0.00 0.00 100.00 100.0 #20 0.85 0.64 ( ** ) 0.20 0.20 99.80 99.8 #40 0.425 9.45 2.91 3.10 96.90 96.9 #60 0.25 33.48 10.30 13.40 86.60 86.6 #100 0.15 72.80 22.39 35.79 64.21 64.2 #140 0.106 97.98 30.13 65.93 34.07 34.1 #200 0.075 28.00 8.61 74.54 25.46 25.5 Pan - 82.79 25.46 100.00 - -

Notes : ( * ) The + 3/4" sieve analysis is based on the Total Dry Weight of the Sample ( ** ) The - 3/4" and - 3/8" sieve analysis is based on the Weight of the Dry Specimen

Tested By MFP Date 12/1/25 Checked By AES Date 12/2/25 page 2 of 2 DCN: CT-S73T, DATE 2/25/22, REV. 1

WASH SIEVE ANALYSIS

ASTM D6913-17

371.35

513.83 467.62 142.48 46.21

325.14

NA

NA

NA

NA

14.2

NA

513.83 142.48

Client: Garrett & Moore Boring No.: NBR-TP-3 Client Reference: Beaufort County Depth (ft): -8 Project No.: R-2025-333-001 Sample No.: B-5 Lab ID: R-2025-333-001-005 Soil Description: GRAY BROWN SILT Note: The USCS symbol used with this test refers only to the minus No. 40 (Minus #40 sieve material, Air dried) sieve material. See the "Sieve and Hydrometer Analysis" graph page for the complete material description .

1 2 3 M Tare Number: C A-F 2M U Wt. of Tare & Wet Sample (g): 31.81 32.90 31.72 L Wt. of Tare & Dry Sample (g): 29.12 29.99 28.93 T Weight of Tare (g): 15.12 15.32 15.50 I Weight of Water (g): 2.7 2.9 2.8 P Weight of Dry Sample (g): 14.0 14.7 13.4 O Was As Received MC Preserved: I Moisture Content (%): 19.2 19.8 20.8 N Number of Blows: 30 23 16 T

Plastic Limit Test 1 2 Range Test Results

Tare Number: 7 8 Liquid Limit (%): 20 Wt. of Tare & Wet Sample (g): 15.53 15.60 Wt. of Tare & Dry Sample (g): 14.27 14.35 Plastic Limit (%): 17 Weight of Tare (g): 6.94 7.01 Weight of Water (g): 1.3 1.3 Plasticity Index (%): 3 Weight of Dry Sample (g): 7.3 7.3

USCS Symbol: ML Moisture Content (%): 17.2 17.0 0.2 Note: The acceptable range of the two Moisture Contents is ± 0.84

Flow Curve Plasticity Chart

Tested By CB Date 12/2/25 Checked By AES Date 12/3/25 page 1 of 1 DCN: CTS4B, DATE: 5/22/18 REVISION: 8

Yes

ASTM D2216-19

14.2

325.1 46.2

142.48 467.62 513.83

Liquid Limit TestAs Received Moisture Content

1 10 100

W at er C on te nt

Number of Blows

0 20 40 60 80 100

Pl as tic ity

In de x

Liquid Limit (%)

CL CH

MH

Client: Garrett & Moore Boring No.: NBR-TP-3 Client Reference: Beaufort County Depth (ft): -8 Project No.: R-2025-333-001 Sample No.: B-5 Lab ID: R-2025-333-001-005 Test Method STANDARD

Visual Description: Gray Brown Silt

Optimum Moisture Content (%): 14.9 Maximum Dry Density (pcf): 113.0

Tested By MFP Date 12/2/25 Checked By AES Date 12/3/25 page 1 of 2 DCN:CT-S12 DATE: 4/21/23 REVISION: 17

5 10 15 20 25

D en si ty

(p cf

Moisture Content (%)

Client: Garrett & Moore Boring No.: NBR-TP-3 Client Reference: Beaufort County Depth (ft): -8 Project No.: R-2025-333-001 Sample No.: B-5 Lab ID: R-2025-333-001-005

Visual Description: Gray Brown Silt

Total Weight of the Sample (g): 20250 Test Type: STANDARD As Received Water Content (%): NA Rammer Weight (lb): 5.5 Assumed Specific Gravity: 2.70 Rammer Drop (in): 12

Rammer Type: MECHANICAL Percent Retained on 3/4": NA Machine ID: R174 Percent Retained on 3/8": NA Mold ID: R607 Percent Retained on #4: NA Mold diameter: 4" Oversize Material: Not included Weight of the Mold (g): 4231 Procedure Used: B Volume of the Mold (cm3): 937

Mold / Specimen

Point No. 1 2 3 4 5 Weight of Mold & Wet Sample (g): 6023 6093 6162 6185 6129 Weight of Mold (g): 4231 4231 4231 4231 4231 Weight of Wet Sample (g): 1792 1863 1932 1954 1899 Mold Volume (cm3): 937 937 937 937 937

Moisture Content / Density

Tare Number: 431 487 8-A 721 13-A Weight of Tare & Wet Sample (g): 362.90 413.70 373.30 392.10 363.70 Weight of Tare & Dry Sample (g): 339.15 380.14 338.54 350.36 319.31 Weight of Tare (g): 98.80 99.10 91.00 90.00 87.90 Weight of Water (g): 23.75 33.56 34.76 41.74 44.39 Weight of Dry Sample (g): 240.35 281.04 247.54 260.36 231.41

Wet Density (g/cm3): 1.91 1.99 2.06 2.09 2.03 Wet Density (pcf): 119.4 124.1 128.7 130.2 126.5 Moisture Content (%): 9.9 11.9 14.0 16.0 19.2 Dry Density (pcf): 108.7 110.9 112.9 112.2 106.1

Zero Air Voids

Moisture Content (%): 16.0 21.0 26.0 Dry Unit Weight (pcf): 117.7 107.5 99.0

Tested By MFP Date 12/2/25 Checked By AES Date 12/3/25

Client: Garrett & Moore Boring No.: NBR-TP-7

Project No.: R-2025-333-001 Sample No.: B-6 Lab ID: R-2025-333-001-006 Soil Color: Light Brown

USCS Symbol: D50 = 0.12

(NON-PLASTIC FINES)

Tested By MFP Date 12/1/25 Checked By AES Date 12/2/25 page 1 of 2 DCN: CT-S73T, DATE 2/25/22, REV. 1

SIEVE AND HYDROMETER ANALYSIS

ASTM D6913 / D7928

USCS

#200#412" 6" 3" 3/4" 3/8" #10 #20 #40 #100

0.0010.010.11101001000

Pe rc en t F in er

B y

W ei gh

Client: Garrett & Moore Boring No.: NBR-TP-7

Project No.: R-2025-333-001 Sample No.: B-6 Lab ID: R-2025-333-001-006 Soil Color: Light Brown

Moisture Content of Passing 3/4" Material Moisture Content of Retained 3/4" Material

Wt. of Tare & Wet Sample (g): Weight of Tare & Wet Sample (g): NA Wt. of Tare & Dry Sample (g): Weight of Tare & Dry Sample (g): NA Weight of Tare (g): Weight of Tare (g): NA Weight of Water (g): Weight of Water (g): NA Weight of Dry Soil (g): Weight of Dry Soil (g): NA

Moisture Content (%): Moisture Content (%): 0.0

Dry Weight of Sample (g): Total Dry Weight of Sample (g): 327.20 Tare No. (Sub-Specimen) Wet Weight of +3/4" Sample (g): 0.00 Wt. of Tare & Wet Sub-Specimen (g): Dry Weight of + 3/4" Sample (g): 0.00 Weight of Tare (g): Dry Weight of - 3/4" Sample (g): 327.20 Sub-Specimen Wet Weight (g): Dry Weight -3/4" +3/8" Sample (g): 0.00 Tare No. (-3/8" Sub-Specimen): Dry Weight of -3/8" Sample (g): 327.20 Wt. of Tare & Wet -3/8" Sub-Specimen (g): J - Factor (% Finer than 3/4"): NA Weight of Tare (g): J - Factor (% Finer than 3/8"): NA Sub-Specimen -3/8" Wet Weight (g):

Sieve Sieve Weight of Soil Percent Accumulated PercentAccumulated Size Opening Retained Retained Percent Finer Percent

Retained Finer

(mm) (g) (%) (%) (%) (%)

12" 300 0.00 0.00 0.00 100.00 100.0 6" 150 0.00 0.00 0.00 100.00 100.0 3" 75 0.00 0.00 0.00 100.00 100.0 2" 50 0.00 ( * ) 0.00 0.00 100.00 100.0

1 1/2" 37.5 0.00 0.00 0.00 100.00 100.0 1" 25 0.00 0.00 0.00 100.00 100.0

3/4" 19 0.00 0.00 0.00 100.00 100.0 1/2" 12.5 0.00 0.00 0.00 100.00 100.0 3/8" 9.5 0.00 0.00 0.00 100.00 100.0 #4 4.75 0.00 0.00 0.00 100.00 100.0

#10 2 0.27 0.08 0.08 99.92 99.9 #20 0.85 0.99 ( ** ) 0.30 0.39 99.61 99.6 #40 0.425 6.70 2.05 2.43 97.57 97.6 #60 0.25 30.46 9.31 11.74 88.26 88.3 #100 0.15 57.87 17.69 29.43 70.57 70.6 #140 0.106 122.15 37.33 66.76 33.24 33.2 #200 0.075 38.95 11.90 78.66 21.34 21.3 Pan - 69.81 21.34 100.00 - -

Notes : ( * ) The + 3/4" sieve analysis is based on the Total Dry Weight of the Sample ( ** ) The - 3/4" and - 3/8" sieve analysis is based on the Weight of the Dry Specimen

Tested By MFP Date 12/1/25 Checked By AES Date 12/2/25 page 2 of 2 DCN: CT-S73T, DATE 2/25/22, REV. 1

WASH SIEVE ANALYSIS

ASTM D6913-17

362.23

508.21 473.18 145.98 35.03

327.20

NA

NA

NA

NA

10.7

NA

508.21 145.98

Client: Garrett & Moore Boring No.: NBR-TP-7 Client Reference: Beaufort County Depth (ft): -7 Project No.: R-2025-333-001 Sample No.: B-6 Lab ID: R-2025-333-001-006 Color: Light Brown

( MInus No. 40 sieve material) As Received Water Content

Tare Number 469 Wt. of Tare & Wet Sample (g) 508.21 Wt. of Tare & Dry Sample (g) 473.18 Weight of Tare (g) 145.98 Weight of Water (g) 35.03 Weight of Dry Sample (g) 327.20

Water Content (%) 10.7

NON - PLASTIC

MATERIAL

Tested By SM Date 12/3/25 Checked By AES Date 12/3/25 page 1 of 1 DCN: CT-S4C, DATE: 4/27/17, REVISION : 4e

Client: Garrett & Moore Boring No.: NBR-TP-7 Client Reference: Beaufort County Depth (ft): -7 Project No.: R-2025-333-001 Sample No.: B-6 Lab ID: R-2025-333-001-006 Test Method STANDARD

Visual Description: Light Brown Silty Sand

Optimum Moisture Content (%): 15.1 Maximum Dry Density (pcf): 110.7

Tested By MFP Date 12/3/25 Checked By AES Date 12/4/25 page 1 of 2 DCN:CT-S12 DATE: 4/21/23 REVISION: 17

5 10 15 20 25

D en si ty

(p cf

Moisture Content (%)

Client: Garrett & Moore Boring No.: NBR-TP-7 Client Reference: Beaufort County Depth (ft): -7 Project No.: R-2025-333-001 Sample No.: B-6 Lab ID: R-2025-333-001-006

Visual Description: Light Brown Silty Sand

Total Weight of the Sample (g): 19200 Test Type: STANDARD As Received Water Content (%): NA Rammer Weight (lb): 5.5 Assumed Specific Gravity: 2.70 Rammer Drop (in): 12

Rammer Type: MECHANICAL Percent Retained on 3/4": NA Machine ID: R174 Percent Retained on 3/8": NA Mold ID: R607 Percent Retained on #4: NA Mold diameter: 4" Oversize Material: Not included Weight of the Mold (g): 4230 Procedure Used: B Volume of the Mold (cm3): 937

Mold / Specimen

Point No. 1 2 3 4 5 Weight of Mold & Wet Sample (g): 6021 6084 6134 6149 6091 Weight of Mold (g): 4230 4230 4230 4230 4230 Weight of Wet Sample (g): 1792 1854 1904 1919 1862 Mold Volume (cm3): 937 937 937 937 937

Moisture Content / Density

Tare Number: 480 14-A 427 1-A 4-A Weight of Tare & Wet Sample (g): 345.40 408.70 368.40 383.00 364.10 Weight of Tare & Dry Sample (g): 321.73 372.64 334.18 341.41 319.61 Weight of Tare (g): 99.20 87.10 99.20 89.30 87.40 Weight of Water (g): 23.67 36.06 34.22 41.59 44.49 Weight of Dry Sample (g): 222.53 285.54 234.98 252.11 232.21

Wet Density (g/cm3): 1.91 1.98 2.03 2.05 1.99 Wet Density (pcf): 119.4 123.5 126.8 127.9 124.0 Moisture Content (%): 10.6 12.6 14.6 16.5 19.2 Dry Density (pcf): 107.9 109.7 110.7 109.8 104.1

Zero Air Voids

Moisture Content (%): 16.0 20.0 24.0 Dry Unit Weight (pcf): 117.7 109.4 102.2

Tested By MFP Date 12/3/25 Checked By AES Date 12/4/25

Stilley Station Road Site Geotechnical Data &

Test Pit Photos November 2025

Client: Garrett & Moore Boring No.: SSR-TP-3

Project No.: R-2025-333-001 Sample No.: B-1 Lab ID: R-2025-333-001-001 Soil Color: Orange

USCS Symbol: D50 = 0.09

SC-SM, TESTED

SILTY, CLAYEY SAND

Tested By MFP Date 12/1/25 Checked By AES Date 12/2/25 page 1 of 2 DCN: CT-S73T, DATE 2/25/22, REV. 1

SIEVE AND HYDROMETER ANALYSIS

ASTM D6913 / D7928

USCS

#200#412" 6" 3" 3/4" 3/8" #10 #20 #40 #100

0.0010.010.11101001000

Pe rc en t F in er

B y

W ei gh

Client: Garrett & Moore Boring No.: SSR-TP-3

Project No.: R-2025-333-001 Sample No.: B-1 Lab ID: R-2025-333-001-001 Soil Color: Orange

Moisture Content of Passing 3/4" Material Moisture Content of Retained 3/4" Material

Wt. of Tare & Wet Sample (g): Weight of Tare & Wet Sample (g): NA Wt. of Tare & Dry Sample (g): Weight of Tare & Dry Sample (g): NA Weight of Tare (g): Weight of Tare (g): NA Weight of Water (g): Weight of Water (g): NA Weight of Dry Soil (g): Weight of Dry Soil (g): NA

Moisture Content (%): Moisture Content (%): 0.0

Dry Weight of Sample (g): Total Dry Weight of Sample (g): 332.94 Tare No. (Sub-Specimen) Wet Weight of +3/4" Sample (g): 0.00 Wt. of Tare & Wet Sub-Specimen (g): Dry Weight of + 3/4" Sample (g): 0.00 Weight of Tare (g): Dry Weight of - 3/4" Sample (g): 332.94 Sub-Specimen Wet Weight (g): Dry Weight -3/4" +3/8" Sample (g): 0.00 Tare No. (-3/8" Sub-Specimen): Dry Weight of -3/8" Sample (g): 332.94 Wt. of Tare & Wet -3/8" Sub-Specimen (g): J - Factor (% Finer than 3/4"): NA Weight of Tare (g): J - Factor (% Finer than 3/8"): NA Sub-Specimen -3/8" Wet Weight (g):

Sieve Sieve Weight of Soil Percent Accumulated PercentAccumulated Size Opening Retained Retained Percent Finer Percent

Retained Finer

(mm) (g) (%) (%) (%) (%)

12" 300 0.00 0.00 0.00 100.00 100.0 6" 150 0.00 0.00 0.00 100.00 100.0 3" 75 0.00 0.00 0.00 100.00 100.0 2" 50 0.00 ( * ) 0.00 0.00 100.00 100.0

1 1/2" 37.5 0.00 0.00 0.00 100.00 100.0 1" 25 0.00 0.00 0.00 100.00 100.0

3/4" 19 0.00 0.00 0.00 100.00 100.0 1/2" 12.5 0.00 0.00 0.00 100.00 100.0 3/8" 9.5 0.00 0.00 0.00 100.00 100.0 #4 4.75 0.00 0.00 0.00 100.00 100.0

#10 2 0.06 0.02 0.02 99.98 100.0 #20 0.85 0.14 ( ** ) 0.04 0.06 99.94 99.9 #40 0.425 0.31 0.09 0.15 99.85 99.8 #60 0.25 1.83 0.55 0.70 99.30 99.3 #100 0.15 22.52 6.76 7.47 92.53 92.5 #140 0.106 113.10 33.97 41.44 58.56 58.6 #200 0.075 83.90 25.20 66.64 33.36 33.4 Pan - 111.08 33.36 100.00 - -

Notes : ( * ) The + 3/4" sieve analysis is based on the Total Dry Weight of the Sample ( ** ) The - 3/4" and - 3/8" sieve analysis is based on the Weight of the Dry Specimen

Tested By MFP Date 12/1/25 Checked By AES Date 12/2/25 page 2 of 2 DCN: CT-S73T, DATE 2/25/22, REV. 1

WASH SIEVE ANALYSIS

ASTM D6913-17

380.77

514.79 466.96 134.02 47.83

332.94

NA

NA

NA

NA

14.4

NA

514.79 134.02

Client: Garrett & Moore Boring No.: SSR-TP-3 Client Reference: Beaufort County Depth (ft): -7 Project No.: R-2025-333-001 Sample No.: B-1 Lab ID: R-2025-333-001-001 Soil Description: ORANGE SILTY CLAY Note: The USCS symbol used with this test refers only to the minus No. 40 (Minus #40 sieve material, Air dried) sieve material. See the "Sieve and Hydrometer Analysis" graph page for the complete material description .

1 2 3 M Tare Number: W I7 P U Wt. of Tare & Wet Sample (g): 30.62 31.66 31.22 L Wt. of Tare & Dry Sample (g): 27.56 28.36 27.83 T Weight of Tare (g): 15.03 15.38 15.10 I Weight of Water (g): 3.1 3.3 3.4 P Weight of Dry Sample (g): 12.5 13.0 12.7 O Was As Received MC Preserved: I Moisture Content (%): 24.4 25.4 26.6 N Number of Blows: 34 26 18 T

Plastic Limit Test 1 2 Range Test Results

Tare Number: 5 10 Liquid Limit (%): 26 Wt. of Tare & Wet Sample (g): 16.79 16.73 Wt. of Tare & Dry Sample (g): 15.25 15.18 Plastic Limit (%): 19 Weight of Tare (g): 6.98 6.94 Weight of Water (g): 1.5 1.6 Plasticity Index (%): 7 Weight of Dry Sample (g): 8.3 8.2

USCS Symbol: CL-ML Moisture Content (%): 18.6 18.8 -0.2 Note: The acceptable range of the two Moisture Contents is ± 0.84

Flow Curve Plasticity Chart

Tested By CB Date 12/3/25 Checked By AES Date 12/3/25 page 1 of 1 DCN: CTS4B, DATE: 5/22/18 REVISION: 8

Yes

ASTM D2216-19

14.4

332.9 47.8

134.02 466.96 514.79

Liquid Limit TestAs Received Moisture Content

1 10 100

W at er C on te nt

Number of Blows

0 20 40 60 80 100

Pl as tic ity

In de x

Liquid Limit (%)

CL CH

MH

Client: Garrett & Moore Boring No.: SSR-TP-3 Client Reference: Beaufort County Depth (ft): -7 Project No.: R-2025-333-001 Sample No.: B-1 Lab ID: R-2025-333-001-001 Test Method STANDARD

Visual Description: Orange Silty,Clayey Sand

Optimum Moisture Content (%): 16.5 Maximum Dry Density (pcf): 109.0

Tested By MFP Date 12/1/25 Checked By AES Date 12/2/25 page 1 of 2 DCN:CT-S12 DATE: 4/21/23 REVISION: 17

10 15 20 25 30

D en si ty

(p cf

Moisture Content (%)

Client: Garrett & Moore Boring No.: SSR-TP-3 Client Reference: Beaufort County Depth (ft): -7 Project No.: R-2025-333-001 Sample No.: B-1 Lab ID: R-2025-333-001-001

Visual Description: Orange Silty,Clayey Sand

Total Weight of the Sample (g): 19000 Test Type: STANDARD As Received Water Content (%): NA Rammer Weight (lb): 5.5 Assumed Specific Gravity: 2.70 Rammer Drop (in): 12

Rammer Type: MECHANICAL Percent Retained on 3/4": NA Machine ID: R606 Percent Retained on 3/8": NA Mold ID: R755 Percent Retained on #4: NA Mold diameter: 4" Oversize Material: Not included Weight of the Mold (g): 4124 Procedure Used: B Volume of the Mold (cm3): 942

Mold / Specimen

Point No. 1 2 3 4 5 Weight of Mold & Wet Sample (g): 5919 5994 6044 6013 5966 Weight of Mold (g): 4124 4124 4124 4124 4124 Weight of Wet Sample (g): 1795 1870 1920 1889 1842 Mold Volume (cm3): 942 942 942 942 942

Moisture Content / Density

Tare Number: 720 492 474 436 424 Weight of Tare & Wet Sample (g): 294.70 329.00 346.30 319.70 311.30 Weight of Tare & Dry Sample (g): 271.11 299.43 310.53 284.37 273.88 Weight of Tare (g): 89.60 99.20 98.00 99.10 98.00 Weight of Water (g): 23.59 29.57 35.77 35.33 37.42 Weight of Dry Sample (g): 181.51 200.23 212.53 185.27 175.88

Wet Density (g/cm3): 1.91 1.99 2.04 2.01 1.96 Wet Density (pcf): 118.9 123.9 127.2 125.2 122.1 Moisture Content (%): 13.0 14.8 16.8 19.1 21.3 Dry Density (pcf): 105.3 108.0 108.9 105.2 100.7

Zero Air Voids

Moisture Content (%): 18.0 23.0 28.0 Dry Unit Weight (pcf): 113.4 103.9 95.9

Tested By MFP Date 12/1/25 Checked By AES Date 12/2/25

Client: Garrett & Moore Boring No.: SSR-TP-6

Project No.: R-2025-333-001 Sample No.: B-2 Lab ID: R-2025-333-001-002 Soil Color: Light Brown

USCS Symbol: D50 = 0.12

(NON-PLASTIC FINES)

Tested By MFP Date 12/1/25 Checked By AES Date 12/2/25 page 1 of 2 DCN: CT-S73T, DATE 2/25/22, REV. 1

SIEVE AND HYDROMETER ANALYSIS

ASTM D6913 / D7928

USCS

#200#412" 6" 3" 3/4" 3/8" #10 #20 #40 #100

0.0010.010.11101001000

Pe rc en t F in er

B y

W ei gh

Client: Garrett & Moore Boring No.: SSR-TP-6

Project No.: R-2025-333-001 Sample No.: B-2 Lab ID: R-2025-333-001-002 Soil Color: Light Brown

Moisture Content of Passing 3/4" Material Moisture Content of Retained 3/4" Material

Wt. of Tare & Wet Sample (g): Weight of Tare & Wet Sample (g): NA Wt. of Tare & Dry Sample (g): Weight of Tare & Dry Sample (g): NA Weight of Tare (g): Weight of Tare (g): NA Weight of Water (g): Weight of Water (g): NA Weight of Dry Soil (g): Weight of Dry Soil (g): NA

Moisture Content (%): Moisture Content (%): 0.0

Dry Weight of Sample (g): Total Dry Weight of Sample (g): 362.54 Tare No. (Sub-Specimen) Wet Weight of +3/4" Sample (g): 0.00 Wt. of Tare & Wet Sub-Specimen (g): Dry Weight of + 3/4" Sample (g): 0.00 Weight of Tare (g): Dry Weight of - 3/4" Sample (g): 362.54 Sub-Specimen Wet Weight (g): Dry Weight -3/4" +3/8" Sample (g): 0.00 Tare No. (-3/8" Sub-Specimen): Dry Weight of -3/8" Sample (g): 362.54 Wt. of Tare & Wet -3/8" Sub-Specimen (g): J - Factor (% Finer than 3/4"): NA Weight of Tare (g): J - Factor (% Finer than 3/8"): NA Sub-Specimen -3/8" Wet Weight (g):

Sieve Sieve Weight of Soil Percent Accumulated PercentAccumulated Size Opening Retained Retained Percent Finer Percent

Retained Finer

(mm) (g) (%) (%) (%) (%)

12" 300 0.00 0.00 0.00 100.00 100.0 6" 150 0.00 0.00 0.00 100.00 100.0 3" 75 0.00 0.00 0.00 100.00 100.0 2" 50 0.00 ( * ) 0.00 0.00 100.00 100.0

1 1/2" 37.5 0.00 0.00 0.00 100.00 100.0 1" 25 0.00 0.00 0.00 100.00 100.0

3/4" 19 0.00 0.00 0.00 100.00 100.0 1/2" 12.5 0.00 0.00 0.00 100.00 100.0 3/8" 9.5 0.00 0.00 0.00 100.00 100.0 #4 4.75 0.00 0.00 0.00 100.00 100.0

#10 2 0.00 0.00 0.00 100.00 100.0 #20 0.85 0.06 ( ** ) 0.02 0.02 99.98 100.0 #40 0.425 0.18 0.05 0.07 99.93 99.9 #60 0.25 1.49 0.41 0.48 99.52 99.5 #100 0.15 57.04 15.73 16.21 83.79 83.8 #140 0.106 178.59 49.26 65.47 34.53 34.5 #200 0.075 44.21 12.19 77.67 22.33 22.3 Pan - 80.97 22.33 100.00 - -

Notes : ( * ) The + 3/4" sieve analysis is based on the Total Dry Weight of the Sample ( ** ) The - 3/4" and - 3/8" sieve analysis is based on the Weight of the Dry Specimen

Tested By MFP Date 12/1/25 Checked By AES Date 12/2/25 page 2 of 2 DCN: CT-S73T, DATE 2/25/22, REV. 1

WASH SIEVE ANALYSIS

ASTM D6913-17

399.09

41-A 535.16 498.61 136.07 36.55

362.54

NA

NA

NA

NA

10.1

NA

41-A

535.16 136.07

Client: Garrett & Moore Boring No.: SSR-TP-6 Client Reference: Beaufort County Depth (ft): -8 Project No.: R-2025-333-001 Sample No.: B-2 Lab ID: R-2025-333-001-002 Color: Light Brown

( MInus No. 40 sieve material) As Received Water Content

Tare Number 41-A Wt. of Tare & Wet Sample (g) 535.16 Wt. of Tare & Dry Sample (g) 498.61 Weight of Tare (g) 136.07 Weight of Water (g) 36.55 Weight of Dry Sample (g) 362.54

Water Content (%) 10.1

NON - PLASTIC

MATERIAL

Tested By SRM Date 12/2/25 Checked By AES Date 12/4/25 page 1 of 1 DCN: CT-S4C, DATE: 4/27/17, REVISION : 4e

Client: Garrett & Moore Boring No.: SSR-TP-6 Client Reference: Beaufort County Depth (ft): -8 Project No.: R-2025-333-001 Sample No.: B-2 Lab ID: R-2025-333-001-002 Test Method STANDARD

Visual Description: Light Brown Silty Sand

Optimum Moisture Content (%): 16.3 Maximum Dry Density (pcf): 108.6

Tested By MFP Date 12/1/25 Checked By AES Date 12/2/25 page 1 of 2 DCN:CT-S12 DATE: 4/21/23 REVISION: 17

10 15 20 25 30

D en si ty

(p cf

Moisture Content (%)

Client: Garrett & Moore Boring No.: SSR-TP-6 Client Reference: Beaufort County Depth (ft): -8 Project No.: R-2025-333-001 Sample No.: B-2 Lab ID: R-2025-333-001-002

Visual Description: Light Brown Silty Sand

Total Weight of the Sample (g): 20550 Test Type: STANDARD As Received Water Content (%): NA Rammer Weight (lb): 5.5 Assumed Specific Gravity: 2.70 Rammer Drop (in): 12

Rammer Type: MECHANICAL Percent Retained on 3/4": NA Machine ID: R174 Percent Retained on 3/8": NA Mold ID: R607 Percent Retained on #4: NA Mold diameter: 4" Oversize Material: Not included Weight of the Mold (g): 4230 Procedure Used: B Volume of the Mold (cm3): 937

Mold / Specimen

Point No. 1 2 3 4 5 Weight of Mold & Wet Sample (g): 5948 6025 6099 6132 6090 Weight of Mold (g): 4230 4230 4230 4230 4230 Weight of Wet Sample (g): 1718 1794 1869 1902 1860 Mold Volume (cm3): 937 937 937 937 937

Moisture Content / Density

Tare Number: 486 714 483 711 10-A Weight of Tare & Wet Sample (g): 353.00 343.40 372.30 355.40 406.30 Weight of Tare & Dry Sample (g): 329.38 314.67 336.53 316.73 353.56 Weight of Tare (g): 98.50 87.00 97.80 92.30 87.40 Weight of Water (g): 23.62 28.73 35.77 38.67 52.74 Weight of Dry Sample (g): 230.88 227.67 238.73 224.43 266.16

Wet Density (g/cm3): 1.83 1.92 2.00 2.03 1.99 Wet Density (pcf): 114.4 119.5 124.5 126.7 123.9 Moisture Content (%): 10.2 12.6 15.0 17.2 19.8 Dry Density (pcf): 103.8 106.2 108.3 108.1 103.4

Zero Air Voids

Moisture Content (%): 19.0 23.5 28.0 Dry Unit Weight (pcf): 111.4 103.1 95.9

Tested By MFP Date 12/1/25 Checked By AES Date 12/2/25

Client: Garrett & Moore Boring No.: SSR-TP-7 Client Reference: Beaufort County Depth (ft): -5 Project No.: R-2025-333-001 Sample No.: B-3 Lab ID: R-2025-333-001-003 Soil Color: Orange Brown

USCS Symbol: D50 = 0.11

Tested By MFP Date 12/1/25 Checked By AES Date 12/2/25 page 1 of 2 DCN: CT-S73T, DATE 2/25/22, REV. 1

SIEVE AND HYDROMETER ANALYSIS

ASTM D6913 / D7928

USCS

#200#412" 6" 3" 3/4" 3/8" #10 #20 #40 #100

0.0010.010.11101001000

Pe rc en t F in er

B y

W ei gh

Client: Garrett & Moore Boring No.: SSR-TP-7 Client Reference: Beaufort County Depth (ft): -5 Project No.: R-2025-333-001 Sample No.: B-3 Lab ID: R-2025-333-001-003 Soil Color: Orange Brown

Moisture Content of Passing 3/4" Material Moisture Content of Retained 3/4" Material

Wt. of Tare & Wet Sample (g): Weight of Tare & Wet Sample (g): NA Wt. of Tare & Dry Sample (g): Weight of Tare & Dry Sample (g): NA Weight of Tare (g): Weight of Tare (g): NA Weight of Water (g): Weight of Water (g): NA Weight of Dry Soil (g): Weight of Dry Soil (g): NA

Moisture Content (%): Moisture Content (%): 0.0

Dry Weight of Sample (g): Total Dry Weight of Sample (g): 350.77 Tare No. (Sub-Specimen) Wet Weight of +3/4" Sample (g): 0.00 Wt. of Tare & Wet Sub-Specimen (g): Dry Weight of + 3/4" Sample (g): 0.00 Weight of Tare (g): Dry Weight of - 3/4" Sample (g): 350.77 Sub-Specimen Wet Weight (g): Dry Weight -3/4" +3/8" Sample (g): 0.00 Tare No. (-3/8" Sub-Specimen): Dry Weight of -3/8" Sample (g): 350.77 Wt. of Tare & Wet -3/8" Sub-Specimen (g): J - Factor (% Finer than 3/4"): NA Weight of Tare (g): J - Factor (% Finer than 3/8"): NA Sub-Specimen -3/8" Wet Weight (g):

Sieve Sieve Weight of Soil Percent Accumulated PercentAccumulated Size Opening Retained Retained Percent Finer Percent

Retained Finer

(mm) (g) (%) (%) (%) (%)

12" 300 0.00 0.00 0.00 100.00 100.0 6" 150 0.00 0.00 0.00 100.00 100.0 3" 75 0.00 0.00 0.00 100.00 100.0 2" 50 0.00 ( * ) 0.00 0.00 100.00 100.0

1 1/2" 37.5 0.00 0.00 0.00 100.00 100.0 1" 25 0.00 0.00 0.00 100.00 100.0

3/4" 19 0.00 0.00 0.00 100.00 100.0 1/2" 12.5 0.00 0.00 0.00 100.00 100.0 3/8" 9.5 0.00 0.00 0.00 100.00 100.0 #4 4.75 0.00 0.00 0.00 100.00 100.0

#10 2 0.00 0.00 0.00 100.00 100.0 #20 0.85 0.09 ( ** ) 0.03 0.03 99.97 100.0 #40 0.425 0.36 0.10 0.13 99.87 99.9 #60 0.25 1.90 0.54 0.67 99.33 99.3 #100 0.15 51.12 14.57 15.24 84.76 84.8 #140 0.106 152.51 43.48 58.72 41.28 41.3 #200 0.075 41.97 11.97 70.69 29.31 29.3 Pan - 102.82 29.31 100.00 - -

Notes : ( * ) The + 3/4" sieve analysis is based on the Total Dry Weight of the Sample ( ** ) The - 3/4" and - 3/8" sieve analysis is based on the Weight of the Dry Specimen

Tested By MFP Date 12/1/25 Checked By AES Date 12/2/25 page 2 of 2 DCN: CT-S73T, DATE 2/25/22, REV. 1

WASH SIEVE ANALYSIS

ASTM D6913-17

398.59

28-A 537.94 490.12 139.35 47.82

350.77

NA

NA

NA

NA

13.6

NA

28-A

537.94 139.35

Client: Garrett & Moore Boring No.: SSR-TP-7 Client Reference: Beaufort County Depth (ft): -5 Project No.: R-2025-333-001 Sample No.: B-3 Lab ID: R-2025-333-001-003 Soil Description: ORANGE BROWN SILT Note: The USCS symbol used with this test refers only to the minus No. 40 (Minus #40 sieve material, Air dried) sieve material. See the "Sieve and Hydrometer Analysis" graph page for the complete material description .

1 2 3 M Tare Number: X-9 A-D A-H U Wt. of Tare & Wet Sample (g): 31.85 32.68 31.86 L Wt. of Tare & Dry Sample (g): 28.77 29.17 28.46 T Weight of Tare (g): 15.56 15.25 15.45 I Weight of Water (g): 3.1 3.5 3.4 P Weight of Dry Sample (g): 13.2 13.9 13.0 O Was As Received MC Preserved: I Moisture Content (%): 23.3 25.2 26.1 N Number of Blows: 26 20 14 T

Plastic Limit Test 1 2 Range Test Results

Tare Number: 20 35 Liquid Limit (%): 24 Wt. of Tare & Wet Sample (g): 20.59 21.32 Wt. of Tare & Dry Sample (g): 18.20 18.74 Plastic Limit (%): 22 Weight of Tare (g): 7.01 7.03 Weight of Water (g): 2.4 2.6 Plasticity Index (%): 2 Weight of Dry Sample (g): 11.2 11.7

USCS Symbol: ML Moisture Content (%): 21.4 22.0 -0.7 Note: The acceptable range of the two Moisture Contents is ± 0.84

Flow Curve Plasticity Chart

Tested By SM Date 12/3/25 Checked By AES Date 12/4/25 page 1 of 1 DCN: CTS4B, DATE: 5/22/18 REVISION: 8

139.35 490.12 537.94

Liquid Limit TestAs Received Moisture Content

Yes

28-A

ASTM D2216-19

13.6

350.8 47.8

1 10 100

W at er C on te nt

Number of Blows

0 20 40 60 80 100

Pl as tic ity

In de x

Liquid Limit (%)

CL CH

MH

Client: Garrett & Moore Boring No.: SSR-TP-7 Client Reference: Beaufort County Depth (ft): -5 Project No.: R-2025-333-001 Sample No.: B-3 Lab ID: R-2025-333-001-003 Test Method STANDARD

Visual Description: Orange Brown Silty Sand

Optimum Moisture Content (%): 17.6 Maximum Dry Density (pcf): 108.9

Tested By NS Date 12/1/25 Checked By AES Date 12/2/25 page 1 of 2 DCN:CT-S12 DATE: 4/21/23 REVISION: 17

10 15 20 25 30

D en si ty

(p cf

Moisture Content (%)

Client: Garrett & Moore Boring No.: SSR-TP-7 Client Reference: Beaufort County Depth (ft): -5 Project No.: R-2025-333-001 Sample No.: B-3 Lab ID: R-2025-333-001-003

Visual Description: Orange Brown Silty Sand

Total Weight of the Sample (g): 18250 Test Type: STANDARD As Received Water Content (%): NA Rammer Weight (lb): 5.5 Assumed Specific Gravity: 2.70 Rammer Drop (in): 12

Rammer Type: MECHANICAL Percent Retained on 3/4": NA Machine ID: R174 Percent Retained on 3/8": NA Mold ID: R607 Percent Retained on #4: NA Mold diameter: 4" Oversize Material: Not included Weight of the Mold (g): 4230 Procedure Used: B Volume of the Mold (cm3): 937

Mold / Specimen

Point No. 1 2 3 4 5 Weight of Mold & Wet Sample (g): 5994 6062 6114 6155 6075 Weight of Mold (g): 4230 4230 4230 4230 4230 Weight of Wet Sample (g): 1763 1831 1884 1925 1845 Mold Volume (cm3): 937 937 937 937 937

Moisture Content / Density

Tare Number: 484 703 493 7-A 718 Weight of Tare & Wet Sample (g): 363.70 359.10 438.80 403.50 338.00 Weight of Tare & Dry Sample (g): 335.22 325.11 391.01 355.11 295.16 Weight of Tare (g): 100.00 90.20 97.90 86.70 92.00 Weight of Water (g): 28.48 33.99 47.79 48.39 42.84 Weight of Dry Sample (g): 235.22 234.91 293.11 268.41 203.16

Wet Density (g/cm3): 1.88 1.96 2.01 2.05 1.97 Wet Density (pcf): 117.5 122.0 125.5 128.2 122.9 Moisture Content (%): 12.1 14.5 16.3 18.0 21.1 Dry Density (pcf): 104.8 106.6 107.9 108.6 101.5

Zero Air Voids

Moisture Content (%): 18.0 23.0 28.0 Dry Unit Weight (pcf): 113.4 103.9 95.9

Tested By NS Date 12/1/25 Checked By AES Date 12/2/25