1760523 Geotech Report_Addendum 2.pdf

AECOM i

Contract No. N40085-22-D-0043 Task Order No. N4008523F5964 eProjects Work Order No. 1760523

FY24 MILCON Project P-1556 10th Marines Maintenance & Operations Complex

Marine Corps Base, Camp Lejeune, Jacksonville, NC

Addendum #2 to Geotechnical Engineering Report and Addendum #1 dated January 30, 2024

April 11, 2024

AECOM ii

Addendum #2 to Geotechnical Engineering Report and Addendum

#1 dated January 30, 2024

April 11, 2024

Prepared for: Naval Facilities Engineering Command (NAVFAC) Mid-Atlantic

Prepared by: AECOM

AECOM Project Number: 60685225

AECOM iii

Quality information

Document name Ref Prepared for Prepared by Date Reviewed by

Geotechnical Engineering Report

FINAL NAVFAC Mid- Atlantic Ariana White, PE 12-28-2023 Victor Omelchenko, PE, DGE Rajul Teredesai, PE, PMP,DGE

Revision history

Revision Revision date Details Name Position

ADDENDUM #1

REVISED FINAL

01-30-2024 Environmental analytic results added

Ariana White, PE Geotechnical Engineer

ADDENDUM #2 04-11-2024

Pavement core log, temporary well logs, SHWT edit to profiles

Ariana White, PE Geotechnical Engineer

This document has been prepared by AECOM Limited for the sole use of our client (the “Client”) and in accordance with generally accepted consultancy principles, the budget for fees and the terms of reference agreed between AECOM Limited and the Client. Any information provided by third parties and referred to herein has not been checked or verified by AECOM Limited, unless otherwise expressly stated in the document. No third party may rely upon this document without the prior and express written agreement of AECOM Limited.

AECOM iv

Revised Scope of Services

Mr. Frank DeMascio with NAVFAC Mid-Atlantic requested that an addendum to the P1556 Camp Lejeune geotechnical report dated April 3, 2024 be prepared to address the following: 1) add a pavement core photo log, 2) revise boring logs to update termination notes and add boring logs for the temporary offset groundwater monitoring wells, 3) update the expected seasonal high ground water table to the subsurface profiles, and 4) update the report text to clarify that Displacement Densified Aggregate Pier specialty contractors were contacted and that recommended bearing capacities and settlement criteria in our report are achievable.

Pavement Core Photo Log

A photo log of pavement cores collected during the P1556 geotechnical subsurface investigation at MCB Camp Lejeune is included with this Addendum as Appendix K.

Boring Logs (Revised)

Boring logs have been revised with amended termination notes and additional boring logs for temporary monitoring wells, B-04-TW, B-07-TW, B-15-TW, B-19-TW, and B-21-TW have been added and are included in revised Appendix A.

Seasonal High Groundwater Table (Revised Section 6.2)

The geotechnical report previously noted the seasonal high water table to be approximately 5 to 7 feet below existing grades. Upon further research relating to the ground water table at MCB Camp Lejeune, the season high water table levels may be as high as 3 to 5 feet below existing grades. The estimated seasonal high water table has been added to the Subsurface Profiles included in Appendix D.

Spread Footings Supported on Densified Displacement Aggregate Piers (Revised Section 7.2)

Without providing project-specific information about the P-1556 project, subsurface conditions were reviewed with licensed specialty contractors and the specialty contractors concur that the recommended bearing capacities are achievable and settlement criteria can be met.

All recommendations included in the original geotechnical engineering report and Addendum #1 shall apply to Addendum #2. The limitations stated in the geotechnical report and Addendum #1 submitted on January 30, 2024 shall also apply to Addendum #2.

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Contact

Ariana White, PE

Geotechnical Engineer

T +301-820-3396

E rajul.teredesai@aecom.com

Victor Omelchenko, PE. DGE

Principal Geotechnical Engineer

T +301-820-3374

E vic.omelchnko@aecom.com aecom.com 60554120

Geotechnical Engineering Report

AECOM A-10

Appendix A – Soil Boring Logs (51 sheets) - Revised

0.0 - 0.3 ft: ASPHALT, (0.0-4.0")

0.3 - 2.0 ft: CRUSHED STONE BASE, (4.0-24.0")

2.0 - 4.5 ft: UNCONTROLLED FILL sampled as moist, medium dense, olive brown, Silty Sand, mixed appearance

2.3 ft: changes to medium dense, brown to light reddish brown

4.5 - 9.8 ft: Moist, loose, light brown and brown, fine to coarse, POORLY GRADED SAND WITH SILT, contains some iron oxidation mottling, thinly bedded

9.8 - 14.2 ft: Moist, loose, light brown with bands of reddish brown, fine to coarse, CLAYEY SAND, very thinly bedded

10.3 ft: changes to contains iron oxidation mottling

14.2 - 19.0 ft: Moist, loose, light brown, fine to coarse, POORLY GRADED SAND WITH SILT, contains some iron oxidation mottling

19.0 - 22.0 ft: Moist to wet, medium dense, light brownish gray, fine to coarse, POORLY GRADED SAND, thinly to very thinly bedded

22.0 - 30.0 ft: Moist, medium dense, light brownish gray, fine to coarse, POORLY GRADED SAND WITH SILT, thinly to very thinly bedded

10.3

7.4

8.3ft: PID=0.2 ppm

10.3ft: PID=0.2 ppm

13.0ft: PID=0.3 ppm

18.0ft: PID=0.2 ppm

S-1

S-2

S-3

S-4

S-5

S-6

S-7

S-8

S-9

NP

NP

NP

NP

SM

SP-

SM

SC

SP-

SM

SP

SP-

SM

22- 17- 1- 6 (N=18)

4- 5- 6- 5 (N=11)

5- 4- 3- 3 (N=7)

2- 2- 4- 3 (N=6)

3- 3- 3- 3 (N=6)

3- 2- 5- 6 (N=7)

5- 4- 5- 5 (N=9)

6- 8- 7- 10 (N=15)

7- 8- 9- 7 (N=17)

8.6

21.5

A

B1

(29%)

(100%)

(100%)

(29%)

(58%)

(67%)

(NR)

(58%)

(79%)

DRILLER: Ed Hester

DATE STARTED: 9/28/2023

At completion

EventDATE COMPLETED: 9/28/2023

BOREHOLE DEPTH: 30.0 FT

SURFACE ELEVATION: 27 FT

LOGGED BY: A. Harding

HAMMER TYPE/WEIGHT: Auto Hammer/140lbs

DRILLING CONTRACTOR: Fishburne Drill

CASING TYPE: Steel

CASING SIZE: 3-1/4"

Depth (ft)

Date Cave in Depth (ft)

BIT TYPE/SIZE: NA/NA

CHECKED BY: J. Kaselow

Date Time

DRILL RIG: CME-45C (Track)

Groundwater Observations

12.010:3509-28-2023

DRILL METHOD: Mud Rotary

A E

C O

M S

O

IL

R O

C K

A E

C O

M -G

E O

T E

C H

_P

_1

1-

-2

3.

G

P J

A E

C O

M -G

E O

T E

C H

_P R

O

JE

C T

-D E

S

IG

N .G

D T

/1

0/

R E

V -0

PROJECT NUMBER: 60713349

SC = Sonic Core

P = Pitcher Sample

H = Hand Auger Sample SHEET 1 of 2

COORDINATES: N 337259.274 E 2501007.34

DESCRIPTION

12420 Milestone Center Drive, Suite 150 Germantown, MD 20876

PS = Piston Sample

RC = Rock Core

PROJECT NUMBER: 60713349

B = Bulk Sample

T = Shelby Tube Sample

Log of Boring B-01

G = Geoprobe

S = Split Spoon SampleAECOM TECHNICAL SERVICES, INC.

PROJECT: P-1556 10th Marine Operations & Maintenance Complex

PROJECT LOCATION: MCB Camp Lejeune, Jacksonville, NC

F in es C on te nt

P oc ke t P en ts f)

D E

P T

H

F T

T Y

P

E REMARKS

AND TESTS

N U

M B

E R

Li qu id L im itSAMPLES

G R

A P

H

IC

P la st ic

L im it

U S

C S

BLOWS M

oi st ur e C on te nt

E

LE

V

F T

S T

R A

T U

M

R E

C

IN

Boring completed at 30.0 FT on 9/28/2023 at

11:45 HOURS.

Boring tremie-grouted with cement-bentonite grout upon completion.

28.0ft: PID=0.3 ppm

S-10

SP-

SM

6- 8- 10- 10 (N=18)

B1

(42%)

A E

C O

M S

O

IL

R O

C K

A E

C O

M -G

E O

T E

C H

_P

_1

1-

-2

3.

G

P J

A E

C O

M -G

E O

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_P R

O

JE

C T

-D E

S

IG

N .G

D T

/1

0/

R E

V -0

PROJECT NUMBER: 60713349

SC = Sonic Core

P = Pitcher Sample

H = Hand Auger Sample SHEET 2 of 2

COORDINATES: N 337259.274 E 2501007.34

DESCRIPTION

12420 Milestone Center Drive, Suite 150 Germantown, MD 20876

PS = Piston Sample

RC = Rock Core

PROJECT NUMBER: 60713349

B = Bulk Sample

T = Shelby Tube Sample

Log of Boring B-01

G = Geoprobe

S = Split Spoon SampleAECOM TECHNICAL SERVICES, INC.

PROJECT: P-1556 10th Marine Operations & Maintenance Complex

PROJECT LOCATION: MCB Camp Lejeune, Jacksonville, NC

F in es C on te nt

P oc ke t P en ts f)

D E

P T

H

F T

T Y

P

E REMARKS

AND TESTS

N U

M B

E R

Li qu id L im itSAMPLES

G R

A P

H

IC

P la st ic

L im it

U S

C S

BLOWS M

oi st ur e C on te nt

E

LE

V

F T

S T

R A

T U

M

R E

C

IN

0.0 - 0.4 ft: ASPHALT, (0.0-4.5")

0.4 - 1.2 ft: CRUSHED STONE BASE, (4.5-12.5")

1.2 - 2.1 ft: UNCONTROLLED FILL sampled as moist, medium dense, brown, Silty Sand, mixed appearance

2.1 - 3.9 ft: UNCONTROLLED FILL sampled as moist, medium dense, light brown, Poorly Graded Sand With Silt

3.9 - 6.9 ft: UNCONTROLLED FILL sampled as moist, very loose, reddish brown, Silty Clayey Sand, mixed appearance

6.9 - 14.2 ft: Moist, loose, light brown with mottles of light gray, POORLY GRADED

SAND WITH SILT

7.9 ft: changes to medium dense, light reddish brown and light brown

9.9 ft: changes to Wet to moist, light brown

14.2 - 18.7 ft: Moist, medium dense, light reddish brown to light brownish gray, POORLY GRADED SAND

18.7 - 23.0 ft: Moist, medium dense, light gray, POORLY GRADED SAND WITH SILT

23.0 - 30.0 ft: Moist, medium dense, light gray to light brownish gray, SILTY SAND

26.6

8.1

1.0ft: Corrosion sample collected (composite from 1' to 5')

S-1

S-2

S-3

S-4

S-5

S-6

S-7

S-8

S-9

23 18

SM

SP-

SM

SC-

SM

SP-

SM

SP

SP-

SM

SM

23- 14- 10 (N=24)

7- 10- 6- 5 (N=16)

3- 2- 1- 2 (N=3)

3- 3- 3- 3 (N=6)

4- 5- 6- 10 (N=11)

9- 10- 10- 6 (N=20)

4- 5- 13- 15 (N=18)

8- 9- 12- 12 (N=21)

9- 10- 7- 6 (N=17)

12.4

19.5

A

B1

(89%)

(92%)

(79%)

(63%)

(83%)

(58%)

(83%)

(67%)

(58%)

DRILLER: Ed Hester

DATE STARTED: 9/28/2023

At completion

EventDATE COMPLETED: 9/28/2023

BOREHOLE DEPTH: 30.0 FT

SURFACE ELEVATION: 27 FT

LOGGED BY: A. Harding

HAMMER TYPE/WEIGHT: Auto Hammer/140lbs

DRILLING CONTRACTOR: Fishburne Drill

CASING TYPE: Steel

CASING SIZE: 3-1/4

Depth (ft)

Date Cave in Depth (ft)

BIT TYPE/SIZE: NA/NA

CHECKED BY: J. Kaselow

Date Time

DRILL RIG: CME-45C (Track)

Groundwater Observations

10.809:0509-28-2023

DRILL METHOD: Mud Rotary

A E

C O

M S

O

IL

R O

C K

A E

C O

M -G

E O

T E

C H

_P

_1

1-

-2

3.

G

P J

A E

C O

M -G

E O

T E

C H

_P R

O

JE

C T

-D E

S

IG

N .G

D T

/1

0/

R E

V -0

PROJECT NUMBER: 60713349

SC = Sonic Core

P = Pitcher Sample

H = Hand Auger Sample SHEET 1 of 2

COORDINATES: N 337169.735 E 2501094.052

DESCRIPTION

12420 Milestone Center Drive, Suite 150 Germantown, MD 20876

PS = Piston Sample

RC = Rock Core

PROJECT NUMBER: 60713349

B = Bulk Sample

T = Shelby Tube Sample

Log of Boring B-02

G = Geoprobe

S = Split Spoon SampleAECOM TECHNICAL SERVICES, INC.

PROJECT: P-1556 10th Marine Operations & Maintenance Complex

PROJECT LOCATION: MCB Camp Lejeune, Jacksonville, NC

F in es C on te nt

P oc ke t P en ts f)

D E

P T

H

F T

T Y

P

E REMARKS

AND TESTS

N U

M B

E R

Li qu id L im itSAMPLES

G R

A P

H

IC

P la st ic

L im it

U S

C S

BLOWS M

oi st ur e C on te nt

E

LE

V

F T

S T

R A

T U

M

R E

C

IN

28.0 ft: changes to loose

Boring completed at 30.0 FT on 9/28/2023 at

09:30 HOURS.

Boring tremie-grouted with cement-bentonite grout upon completion.

S-10

SM

3- 3- 6- 5 (N=9)

B1

(92%)

A E

C O

M S

O

IL

R O

C K

A E

C O

M -G

E O

T E

C H

_P

_1

1-

-2

3.

G

P J

A E

C O

M -G

E O

T E

C H

_P R

O

JE

C T

-D E

S

IG

N .G

D T

/1

0/

R E

V -0

PROJECT NUMBER: 60713349

SC = Sonic Core

P = Pitcher Sample

H = Hand Auger Sample SHEET 2 of 2

COORDINATES: N 337169.735 E 2501094.052

DESCRIPTION

12420 Milestone Center Drive, Suite 150 Germantown, MD 20876

PS = Piston Sample

RC = Rock Core

PROJECT NUMBER: 60713349

B = Bulk Sample

T = Shelby Tube Sample

Log of Boring B-02

G = Geoprobe

S = Split Spoon SampleAECOM TECHNICAL SERVICES, INC.

PROJECT: P-1556 10th Marine Operations & Maintenance Complex

PROJECT LOCATION: MCB Camp Lejeune, Jacksonville, NC

F in es C on te nt

P oc ke t P en ts f)

D E

P T

H

F T

T Y

P

E REMARKS

AND TESTS

N U

M B

E R

Li qu id L im itSAMPLES

G R

A P

H

IC

P la st ic

L im it

U S

C S

BLOWS M

oi st ur e C on te nt

E

LE

V

F T

S T

R A

T U

M

R E

C

IN

0.0 - 0.6 ft: CONCRETE, (0.0-7.5")

0.6 - 0.9 ft: CRUSHED STONE BASE, (7.5-11.0")

0.9 - 2.1 ft: UNCONTROLLED FILL sampled as Moist, dense, grayish brown, Silty Sand, mixed appearance

2.1 - 4.1 ft: UNCONTROLLED FILL sampled as moist, dense, grayish brown, Clayey Sand, mixed appearance

4.1 - 5.3 ft: UNCONTROLLED FILL sampled as moist, medium dense, grayish brown, Silty Sand, mixed appearanc

5.3 - 9.0 ft: Moist, loose, brownish gray with mottles of reddish brown, SILTY CLAYEY SAND, iron oxidation mottling

9.1 - 13.0 ft: Moist, loose, brownish gray with mottles of reddish brown, SILTY SAND

10.1 ft: changes to Wet

13.0 - 13.6 ft: Moist, very soft, gray, FAT

CLAY

13.6 - 18.0 ft: Moist, very soft, gray, SANDY

FAT CLAY

18.0 - 19.4 ft: Moist, soft, gray, FAT CLAY

19.4 - 30.0 ft: Moist, medium dense, reddish brown, SILTY SAND

23.0 ft: changes to Wet

33.2

14.2

0.6ft: PID=0.2 ppm

2.1ft: PID=0.4 ppm

4.1ft: PID=0.2 ppm

S-1

S-2

S-3

S-4

S-5

S-6

S-7

S-8

S-9

NP

NP

SM

SC

SM

SC-

SM

SM

CH

CH

CH

SM

9- 13- 19 (N=32)

17- 20- 15- 14 (N=35)

9- 7- 6- 6 (N=13)

6- 4- 4- 4 (N=8)

5- 4- 3- 5 (N=7)

5- 4- 3- 2 (N=7)

1- 1- 0- 1 (N=1)

1- 1- 2- 4 (N=3)

5- 5- 6- 7 (N=11)

17.7

23.9

A

B1

B2

B1

(100%)

(100%)

(75%)

(71%)

(88%)

(63%)

(100%)

(100%)

(71%)

DRILLER: Ed Hester

DATE STARTED: 10/4/2023

At completion

EventDATE COMPLETED: 10/4/2023

BOREHOLE DEPTH: 30.0 FT

SURFACE ELEVATION: 26 FT

LOGGED BY: A. Harding

HAMMER TYPE/WEIGHT: Auto Hammer/140lbs

DRILLING CONTRACTOR: Fishburne Drill

CASING TYPE: Steel

CASING SIZE: 3-1/4

Depth (ft)

Date Cave in Depth (ft)

BIT TYPE/SIZE: NA/NA

CHECKED BY: J. Kaselow

Date Time

DRILL RIG: CME-45C (Track)

Groundwater Observations

10.109:0010-04-2023

DRILL METHOD: Mud Rotary

A E

C O

M S

O

IL

R O

C K

A E

C O

M -G

E O

T E

C H

_P

_1

1-

-2

3.

G

P J

A E

C O

M -G

E O

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O

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C T

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S

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N .G

D T

/1

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R E

V -0

PROJECT NUMBER: 60713349

SC = Sonic Core

P = Pitcher Sample

H = Hand Auger Sample SHEET 1 of 2

COORDINATES: N 337063.092 E 2501607.097

DESCRIPTION

12420 Milestone Center Drive, Suite 150 Germantown, MD 20876

PS = Piston Sample

RC = Rock Core

PROJECT NUMBER: 60713349

B = Bulk Sample

T = Shelby Tube Sample

Log of Boring B-03

G = Geoprobe

S = Split Spoon SampleAECOM TECHNICAL SERVICES, INC.

PROJECT: P-1556 10th Marine Operations & Maintenance Complex

PROJECT LOCATION: MCB Camp Lejeune, Jacksonville, NC

F in es C on te nt

P oc ke t P en ts f)

D E

P T

H

F T

T Y

P

E REMARKS

AND TESTS

N U

M B

E R

Li qu id L im itSAMPLES

G R

A P

H

IC

P la st ic

L im it

U S

C S

BLOWS M

oi st ur e C on te nt

E

LE

V

F T

S T

R A

T U

M

R E

C

IN

29.6 ft: changes to gray Boring completed at 30.0 FT on 10/4/2023 at

09:45 HOURS.

Boring tremie-grouted with cement-bentonite grout upon completion.

28.0ft: PID=0.2 ppm

S-10

SM

5- 6- 7- 9 (N=13)

B1

(100%)

A E

C O

M S

O

IL

R O

C K

A E

C O

M -G

E O

T E

C H

_P

_1

1-

-2

3.

G

P J

A E

C O

M -G

E O

T E

C H

_P R

O

JE

C T

-D E

S

IG

N .G

D T

/1

0/

R E

V -0

PROJECT NUMBER: 60713349

SC = Sonic Core

P = Pitcher Sample

H = Hand Auger Sample SHEET 2 of 2

COORDINATES: N 337063.092 E 2501607.097

DESCRIPTION

12420 Milestone Center Drive, Suite 150 Germantown, MD 20876

PS = Piston Sample

RC = Rock Core

PROJECT NUMBER: 60713349

B = Bulk Sample

T = Shelby Tube Sample

Log of Boring B-03

G = Geoprobe

S = Split Spoon SampleAECOM TECHNICAL SERVICES, INC.

PROJECT: P-1556 10th Marine Operations & Maintenance Complex

PROJECT LOCATION: MCB Camp Lejeune, Jacksonville, NC

F in es C on te nt

P oc ke t P en ts f)

D E

P T

H

F T

T Y

P

E REMARKS

AND TESTS

N U

M B

E R

Li qu id L im itSAMPLES

G R

A P

H

IC

P la st ic

L im it

U S

C S

BLOWS M

oi st ur e C on te nt

E

LE

V

F T

S T

R A

T U

M

R E

C

IN

0.0 - 0.2 ft: ASPHALT, (0.0-2.0")

0.2 - 0.7 ft: CRUSHED STONE BASE, (2.0-8.0")

0.7 - 3.5 ft: UNCONTROLLED FILL sampled as moist, dense, Poorly Graded Sand with Silt, mixed appearance

2.0 ft: changes to medium dense

3.5 - 8.3 ft: Moist, medium dense, brown, SILTY SAND

8.3 - 13.0 ft: Moist, medium dense, light brown, SILTY SAND

13.0 - 14.5 ft: Moist, soft, light olive brown to grayish brown, SANDY LEAN CLAY

14.5 - 15.0 ft: Wet, light grayish brown, SILTY

SAND

Boring completed at 15.0 FT on 9/25/2023 at

14:00 HOURS.

Boring tremie-grouted with cement-bentonite grout upon completion.

4.7

12.7

4.0ft: PID=0.4 ppm

6.0ft: PID=0.3 ppm

10.0ft: PID=0.3 ppm

S-1

S-2

S-3

S-4

S-5

S-6

S-7

SP-

SM

SM

SM

CL

SM

28- 13- 18- 17 (N=31)

10- 9- 8- 11 (N=17)

12- 10- 8- 9 (N=18)

10- 8- 7- 8 (N=15)

6- 8- 10- 12 (N=18)

6- 5- 5- 9 (N=10)

2- 1- 3- 8 (N=4)

10.9

13.2

A

B1

B2

B1

(63%)

(100%)

(63%)

(58%)

(75%)

(71%)

(100%)

DRILLER: Ed Hester

DATE STARTED: 9/25/2023

At completion

EventDATE COMPLETED: 9/25/2023

BOREHOLE DEPTH: 15.0 FT

SURFACE ELEVATION: 24 FT

LOGGED BY: A. Harding

HAMMER TYPE/WEIGHT: Auto Hammer/140lbs

DRILLING CONTRACTOR: Fishburne Drill

CASING TYPE: Steel

CASING SIZE: 3-1/4

Depth (ft)

Date Cave in Depth (ft)

BIT TYPE/SIZE: NA/NA

CHECKED BY: J. Kaselow

Date Time

DRILL RIG: CME-45C (Track)

Groundwater Observations

14.513:2009-25-2023

DRILL METHOD: Mud Rotary

A E

C O

M S

O

IL

R O

C K

A E

C O

M -G

E O

T E

C H

_P

_1

1-

-2

3.

G

P J

A E

C O

M -G

E O

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C H

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C T

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/1

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R E

V -0

PROJECT NUMBER: 60713349

SC = Sonic Core

P = Pitcher Sample

H = Hand Auger Sample SHEET 1 of 1

COORDINATES: N 336906.172 E 2501293.958

DESCRIPTION

12420 Milestone Center Drive, Suite 150 Germantown, MD 20876

PS = Piston Sample

RC = Rock Core

PROJECT NUMBER: 60713349

B = Bulk Sample

T = Shelby Tube Sample

Log of Boring B-04

G = Geoprobe

S = Split Spoon SampleAECOM TECHNICAL SERVICES, INC.

PROJECT: P-1556 10th Marine Operations & Maintenance Complex

PROJECT LOCATION: MCB Camp Lejeune, Jacksonville, NC

F in es C on te nt

P oc ke t P en ts f)

D E

P T

H

F T

T Y

P

E REMARKS

AND TESTS

N U

M B

E R

Li qu id L im itSAMPLES

G R

A P

H

IC

P la st ic

L im it

U S

C S

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oi st ur e C on te nt

E

LE

V

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IN

0.0 - 17.3 ft: For lithology descriptions, please refer to soil descriptions included in boring log B-04

Boring completed at 17.3 FT on 9/28/2023 at

10:58 HOURS.

Temporary groundwater well installed in borehole upon completion. Boring tremie-grouted with cement-bentonite grout after final groundwater measurement and groundwater sample collection.

0.0ft: Temporary well B-04-TW was drilled as an offset borehole to B-04, located 5 ft apart. The temporary well was drilled with Hollow Stem Auger drilling methods.

DRILLER: Ed Hester

DATE STARTED: 9/25/2023

As encountered

EventDATE COMPLETED: 9/28/2023

BOREHOLE DEPTH: 17.3 FT

SURFACE ELEVATION: 23 FT

LOGGED BY: A. Harding

13.3

09-26-2023

HAMMER TYPE/WEIGHT: /NA

DRILLING CONTRACTOR: Fishburne Drill

CASING TYPE:

CASING SIZE:

Depth (ft)

Date

13.3

Cave in Depth (ft)

09-28-2023

BIT TYPE/SIZE: NA/NA

CHECKED BY: S. Thapa

Date Time

DRILL RIG: CME-45C (Track)

Groundwater Observations

48-hour reading

14.509-25-2023

DRILL METHOD: HSA

24-hour reading

A E

C O

M S

O

IL

R O

C K

A E

C O

M -G

E O

T E

C H

_P

_1

1-

-2

3.

G

P J

A E

C O

M -G

E O

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JE

C T

-D E

S

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N .G

D T

/1

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V -0

PROJECT NUMBER: 60713349

SC = Sonic Core

P = Pitcher Sample

H = Hand Auger Sample SHEET 1 of 1

COORDINATES: N 336903.224 E 2501299.02

DESCRIPTION

12420 Milestone Center Drive, Suite 150 Germantown, MD 20876

PS = Piston Sample

RC = Rock Core

PROJECT NUMBER: 60713349

B = Bulk Sample

T = Shelby Tube Sample

Log of Boring B-04-TW

G = Geoprobe

S = Split Spoon SampleAECOM TECHNICAL SERVICES, INC.

PROJECT: P-1556 10th Marine Operations & Maintenance Complex

PROJECT LOCATION: MCB Camp Lejeune, Jacksonville, NC

F in es C on te nt

P oc ke t P en ts f)

D E

P T

H

F T

T Y

P

E REMARKS

AND TESTS

N U

M B

E R

Li qu id L im itSAMPLES

G R

A P

H

IC

P la st ic

L im it

U S

C S

BLOWS M

oi st ur e C on te nt

E

LE

V

F T

S T

R A

T U

M

R E

C

IN

0.2 - 1.0 ft: CRUSHED STONE BASE, (6.0-12.0")

1.0 - 6.4 ft: UNCONTROLLED FILL sampled as moist, medium dense, reddish brown, Silty Sand, mixed appearance

4.2 ft: changes to loose

6.4 - 10.2 ft: Moist, loose, olive brown, SILTY

SAND

10.2 - 14.2 ft: Moist, very loose, reddish brown with light gray, SILTY SAND

12.2 ft: changes to Wet

13.9 ft: changes to contains 3" layer of Fat Clay

14.2 - 18.0 ft: Moist, reddish brown, CLAYEY

SAND

18.0 - 23.0 ft: Moist, very soft, reddish brown, FAT CLAY

23.0 - 28.0 ft: Moist, loose, light gray, SILTY

SAND

28.2

45.9

17.3

0.2ft: PID=0.8 ppm

2.2ft: PID=0.7 ppm

4.2ft: PID=0.4 ppm

6.2ft: PID=0.5 ppm

10.2ft: PID=0.8 ppm

12.2ft: PID=0.7 ppm

23.0ft: PID=1.1 ppm

S-1

S-2

S-3

S-4

S-5

S-6

S-7

T-1

S-8

S-9

SM

SM

SM

SC

CH

SM

30- 16- 10- 11 (N=26)

7- 6- 4- 4 (N=10)

3- 4- 4- 3 (N=8)

3- 3- 4- 3 (N=7)

3- 4- 4- 3 (N=8)

1- 0- 1- 0 (N=1)

1- 1- 0- 1 (N=1)

0- 1- 1- 1 (N=2)

3- 2- 3- 4 (N=5)

28.5

35.3

23.7

A

B1

B2

B1

(92%)

(100%)

(100%)

(96%)

(63%)

(92%)

(100%)

(100%)

(100%)

(79%)

DRILLER: Ed Hester

DATE STARTED: 10/4/2023

At completion

EventDATE COMPLETED: 10/4/2023

BOREHOLE DEPTH: 35.0 FT

SURFACE ELEVATION: 23 FT

LOGGED BY: A. Harding

HAMMER TYPE/WEIGHT: Auto Hammer/140lbs

DRILLING CONTRACTOR: Fishburne Drill

CASING TYPE: Steel

CASING SIZE: 3-1/4

Depth (ft)

Date Cave in Depth (ft)

BIT TYPE/SIZE: NA/NA

CHECKED BY: J. Kaselow

Date Time

DRILL RIG: CME-45C (Track)

Groundwater Observations

12.211:3510-04-2023

DRILL METHOD: Mud Rotary

A E

C O

M S

O

IL

R O

C K

A E

C O

M -G

E O

T E

C H

_P

_1

1-

-2

3.

G

P J

A E

C O

M -G

E O

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_P R

O

JE

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/1

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V -0

PROJECT NUMBER: 60713349

SC = Sonic Core

P = Pitcher Sample

H = Hand Auger Sample SHEET 1 of 2

COORDINATES: N 336785.721 E 2502067.883

DESCRIPTION

12420 Milestone Center Drive, Suite 150 Germantown, MD 20876

PS = Piston Sample

RC = Rock Core

PROJECT NUMBER: 60713349

B = Bulk Sample

T = Shelby Tube Sample

Log of Boring B-05

G = Geoprobe

S = Split Spoon SampleAECOM TECHNICAL SERVICES, INC.

PROJECT: P-1556 10th Marine Operations & Maintenance Complex

PROJECT LOCATION: MCB Camp Lejeune, Jacksonville, NC

F in es C on te nt

P oc ke t P en ts f)

D E

P T

H

F T

T Y

P

E REMARKS

AND TESTS

N U

M B

E R

Li qu id L im itSAMPLES

G R

A P

H

IC

P la st ic

L im it

U S

C S

BLOWS M

oi st ur e C on te nt

E

LE

V

F T

S T

R A

T U

M

R E

C

IN

28.0 - 33.0 ft: Moist, very loose, light brown, CLAYEY SAND

33.0 - 35.0 ft: Moist, loose, gray, SILTY SAND

Boring completed at 35.0 FT on 10/4/2023 at

12:50 HOURS.

Boring tremie-grouted with cement-bentonite grout upon completion.

28.0ft: PID=0.9 ppm

33.0ft: PID=0.7 ppm

S-10

S-11

SM

SC

SM

3- 2- 1- 1 (N=3)

2- 2- 9- 7 (N=11)

B1

(75%)

(88%)

A E

C O

M S

O

IL

R O

C K

A E

C O

M -G

E O

T E

C H

_P

_1

1-

-2

3.

G

P J

A E

C O

M -G

E O

T E

C H

_P R

O

JE

C T

-D E

S

IG

N .G

D T

/1

0/

R E

V -0

PROJECT NUMBER: 60713349

SC = Sonic Core

P = Pitcher Sample

H = Hand Auger Sample SHEET 2 of 2

COORDINATES: N 336785.721 E 2502067.883

DESCRIPTION

12420 Milestone Center Drive, Suite 150 Germantown, MD 20876

PS = Piston Sample

RC = Rock Core

PROJECT NUMBER: 60713349

B = Bulk Sample

T = Shelby Tube Sample

Log of Boring B-05

G = Geoprobe

S = Split Spoon SampleAECOM TECHNICAL SERVICES, INC.

PROJECT: P-1556 10th Marine Operations & Maintenance Complex

PROJECT LOCATION: MCB Camp Lejeune, Jacksonville, NC

F in es C on te nt

P oc ke t P en ts f)

D E

P T

H

F T

T Y

P

E REMARKS

AND TESTS

N U

M B

E R

Li qu id L im itSAMPLES

G R

A P

H

IC

P la st ic

L im it

U S

C S

BLOWS M

oi st ur e C on te nt

E

LE

V

F T

-5

-10

S T

R A

T U

M

R E

C

IN

0.0 - 0.2 ft: ASPHALT, (0.0-2.5")

(2.5-12.0")

1.0 - 3.0 ft: UNCONTROLLED FILL sampled as moist, medium dense, light reddish brown, Silty Clayey Sand, mixed appearance

3.0 - 8.5 ft: UNCONTROLLED FILL sampled as moist, loose, light reddish brown, Clayey Sand, mixed appearance

6.2 ft: changes to loose

8.5 - 13.9 ft: Moist, soft, reddish brown with mottles of light gray, SANDY LEAN CLAY

13.9 - 18.0 ft: Moist, loose, light gray and light reddish brown, SILTY SAND

18.0 - 23.0 ft: Wet, loose, light reddish gray, POORLY GRADED SAND WITH SILT

23.0 - 29.7 ft: very loose, light reddish gray, POORLY GRADED SAND

29.2

67.3

4.6

S-1

S-2

S-3

S-4

S-5

S-6

S-7

S-8

S-9

SC-

SM

CL

SM

SP-

SM

SP

20- 13- 9- 8 (N=22)

5- 4- 2- 3 (N=6)

2- 3- 2- 3 (N=5)

2- 2- 3- 4 (N=5)

2- 1- 1- 3 (N=2)

2- 1- 2- 2 (N=3)

5- 3- 3- 5 (N=6)

3- 4- 3- 3 (N=7)

2- 1- 1- 1 (N=2)

16.9

33.1

27.7

A

B2

B1

(100%)

(100%)

(96%)

(100%)

(92%)

(92%)

(67%)

(63%)

(83%)

DRILLER: Ed Hester

DATE STARTED: 9/28/2023

At completion

EventDATE COMPLETED: 9/28/2023

BOREHOLE DEPTH: 30.0 FT

SURFACE ELEVATION: 23 FT

LOGGED BY: A. Harding

HAMMER TYPE/WEIGHT: Auto Hammer/140lbs

DRILLING CONTRACTOR: Fishburne Drill

CASING TYPE: Steel

CASING SIZE: 3-1/4

Depth (ft)

Date Cave in Depth (ft)

BIT TYPE/SIZE: NA/NA

CHECKED BY: J. Kaselow

Date Time

DRILL RIG: CME-45C (Track)

Groundwater Observations

18.014:3009-28-2023

DRILL METHOD: Mud Rotary

A E

C O

M S

O

IL

R O

C K

A E

C O

M -G

E O

T E

C H

_P

_1

1-

-2

3.

G

P J

A E

C O

M -G

E O

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C H

_P R

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JE

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V -0

PROJECT NUMBER: 60713349

SC = Sonic Core

P = Pitcher Sample

H = Hand Auger Sample SHEET 1 of 2

COORDINATES: N 336723.81 E 2501993.739

DESCRIPTION

12420 Milestone Center Drive, Suite 150 Germantown, MD 20876

PS = Piston Sample

RC = Rock Core

PROJECT NUMBER: 60713349

B = Bulk Sample

T = Shelby Tube Sample

Log of Boring B-06

G = Geoprobe

S = Split Spoon SampleAECOM TECHNICAL SERVICES, INC.

PROJECT: P-1556 10th Marine Operations & Maintenance Complex

PROJECT LOCATION: MCB Camp Lejeune, Jacksonville, NC

F in es C on te nt

P oc ke t P en ts f)

D E

P T

H

F T

T Y

P

E REMARKS

AND TESTS

N U

M B

E R

Li qu id L im itSAMPLES

G R

A P

H

IC

P la st ic

L im it

U S

C S

BLOWS M

oi st ur e C on te nt

E

LE

V

F T

S T

R A

T U

M

R E

C

IN

28.0 ft: changes to Wet

29.7 - 30.0 ft: Wet, light gray, SILTY GRAVEL

WITH SAND

Boring completed at 30.0 FT on 9/28/2023.

Boring tremie-grouted with cement-bentonite grout upon completion.

S-10

SP

GM

2- 1- 2- 2 (N=3)

B1

(100%)

A E

C O

M S

O

IL

R O

C K

A E

C O

M -G

E O

T E

C H

_P

_1

1-

-2

3.

G

P J

A E

C O

M -G

E O

T E

C H

_P R

O

JE

C T

-D E

S

IG

N .G

D T

/1

0/

R E

V -0

PROJECT NUMBER: 60713349

SC = Sonic Core

P = Pitcher Sample

H = Hand Auger Sample SHEET 2 of 2

COORDINATES: N 336723.81 E 2501993.739

DESCRIPTION

12420 Milestone Center Drive, Suite 150 Germantown, MD 20876

PS = Piston Sample

RC = Rock Core

PROJECT NUMBER: 60713349

B = Bulk Sample

T = Shelby Tube Sample

Log of Boring B-06

G = Geoprobe

S = Split Spoon SampleAECOM TECHNICAL SERVICES, INC.

PROJECT: P-1556 10th Marine Operations & Maintenance Complex

PROJECT LOCATION: MCB Camp Lejeune, Jacksonville, NC

F in es C on te nt

P oc ke t P en ts f)

D E

P T

H

F T

T Y

P

E REMARKS

AND TESTS

N U

M B

E R

Li qu id L im itSAMPLES

G R

A P

H

IC

P la st ic

L im it

U S

C S

BLOWS M

oi st ur e C on te nt

E

LE

V

F T

-5

S T

R A

T U

M

R E

C

IN

0.2 - 0.9 ft: CRUSHED STONE BASE, (2.5-11.0")

0.9 - 3.3 ft: UNCONTROLLED FILL sampled as moist, medium dense, brown, Silty Sand, mixed appearance

3.3 - 4.5 ft: UNCONTROLLED FILL sampled as moist, loose, reddish brown, Clayey Sand, mixed appearance

4.5 - 7.3 ft: UNCONTROLLED FILL sampled as moist, medium stiff, reddish brown, Sandy Lean Clay, mixed appearance

7.3 - 8.8 ft: UNCONTROLLED FILL sampled as moist, loose, reddish brown, Silty Sand, mixed appearance

8.8 - 18.0 ft: Moist, loose, light gray and reddish brown, POORLY GRADED SAND

WITH SILT

13.0 ft: changes to medium dense

14.6 ft: changes to Wet

18.0 - 22.0 ft: Moist, soft, dark gray, CLAYEY

SAND

22.0 - 27.0 ft: Wet, loose, dark gray, POORLY

GRADED SAND

37.9

23.3

21.3

2.0ft: PID=0.7 ppm

4.0ft: PID=0.5 ppm

6.0ft: PID=1.0 ppm

8.0ft: PID=1.3 ppm

18.0ft: PID=1.1 ppm

22.0ft: lost 27 gallons of drilling fluid to formation

23.0ft: PID=2.2 ppm

S-1

S-2

S-3

S-4

S-5

S-6

S-7

S-8

S-9

29 18

SM

SC

CL

SM

SP-

SM

SC

SP

13- 12- 9- 4 (N=21)

3- 3- 3- 2 (N=6)

5- 3- 3- 5 (N=6)

3- 3- 3- 3 (N=6)

4- 3- 5- 6 (N=8)

4- 4- 4- 5 (N=8)

5- 7- 4- 3 (N=11)

0- 1- 2- 1 (N=3)

3- 2- 2- 2 (N=4)

23.7

23.3

21.3

A

B1

(36%)

(92%)

(67%)

(58%)

(63%)

(75%)

(50%)

(100%)

(50%)

DRILLER: Ed Hester

DATE STARTED: 9/25/2023

At completion

EventDATE COMPLETED: 9/25/2023

BOREHOLE DEPTH: 30.0 FT

SURFACE ELEVATION: 23 FT

LOGGED BY: A. Harding

HAMMER TYPE/WEIGHT: Auto Hammer/140lbs

DRILLING CONTRACTOR: Fishburne Drill

CASING TYPE: Steel

CASING SIZE: 3-1/4

Depth (ft)

Date Cave in Depth (ft)

BIT TYPE/SIZE: NA/NA

CHECKED BY: J. Kaselow

Date Time

DRILL RIG: CME-45C (Track)

Groundwater Observations

14.616:0009-25-2023

DRILL METHOD: Mud Rotary

A E

C O

M S

O

IL

R O

C K

A E

C O

M -G

E O

T E

C H

_P

_1

1-

-2

3.

G

P J

A E

C O

M -G

E O

T E

C H

_P R

O

JE

C T

-D E

S

IG

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/1

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R E

V -0

PROJECT NUMBER: 60713349

SC = Sonic Core

P = Pitcher Sample

H = Hand Auger Sample SHEET 1 of 2

COORDINATES: N 336668.301 E 2501939.537

DESCRIPTION

12420 Milestone Center Drive, Suite 150 Germantown, MD 20876

PS = Piston Sample

RC = Rock Core

PROJECT NUMBER: 60713349

B = Bulk Sample

T = Shelby Tube Sample

Log of Boring B-07

G = Geoprobe

S = Split Spoon SampleAECOM TECHNICAL SERVICES, INC.

PROJECT: P-1556 10th Marine Operations & Maintenance Complex

PROJECT LOCATION: MCB Camp Lejeune, Jacksonville, NC

F in es C on te nt

P oc ke t P en ts f)

D E

P T

H

F T

T Y

P

E REMARKS

AND TESTS

N U

M B

E R

Li qu id L im itSAMPLES

G R

A P

H

IC

P la st ic

L im it

U S

C S

BLOWS M

oi st ur e C on te nt

E

LE

V

F T

S T

R A

T U

M

R E

C

IN

27.0 - 30.0 ft: Wet, medium dense, moderate brown, SILTY SAND WITH GRAVEL

Boring completed at 30.0 FT on 9/25/2023 at

16:25 HOURS.

Boring tremie-grouted with cement-bentonite grout upon completion.

27.0ft: driller stated more drilling fluid lost to formation

S-10

SP

SM 9- 12- 11- 10

(N=23)

B1

(58%)

A E

C O

M S

O

IL

R O

C K

A E

C O

M -G

E O

T E

C H

_P

_1

1-

-2

3.

G

P J

A E

C O

M -G

E O

T E

C H

_P R

O

JE

C T

-D E

S

IG

N .G

D T

/1

0/

R E

V -0

PROJECT NUMBER: 60713349

SC = Sonic Core

P = Pitcher Sample

H = Hand Auger Sample SHEET 2 of 2

COORDINATES: N 336668.301 E 2501939.537

DESCRIPTION

12420 Milestone Center Drive, Suite 150 Germantown, MD 20876

PS = Piston Sample

RC = Rock Core

PROJECT NUMBER: 60713349

B = Bulk Sample

T = Shelby Tube Sample

Log of Boring B-07

G = Geoprobe

S = Split Spoon SampleAECOM TECHNICAL SERVICES, INC.

PROJECT: P-1556 10th Marine Operations & Maintenance Complex

PROJECT LOCATION: MCB Camp Lejeune, Jacksonville, NC

F in es C on te nt

P oc ke t P en ts f)

D E

P T

H

F T

T Y

P

E REMARKS

AND TESTS

N U

M B

E R

Li qu id L im itSAMPLES

G R

A P

H

IC

P la st ic

L im it

U S

C S

BLOWS M

oi st ur e C on te nt

E

LE

V

F T

-5

S T

R A

T U

M

R E

C

IN

0.0 - 18.3 ft: For lithology descriptions, please

B-07

Boring completed at 18.3 FT on 9/28/2023 at

14:30 HOURS.

Temporary groundwater well installed in borehole upon completion. Boring tremie-grouted with cement-bentonite grout after final groundwater measurement and groundwater sample collection.

0.0ft: Temporary well B-07-TW was drilled as an offset borehole to B-07, located 5 ft apart. The temporary well was drilled with Hollow Stem Auger drilling methods.

DRILLER: Ed Hester

DATE STARTED: 9/25/2023

As encountered

EventDATE COMPLETED: 9/28/2023

BOREHOLE DEPTH: 18.3 FT

SURFACE ELEVATION: 23 FT

LOGGED BY: A. Harding

11.6

09-26-2023

HAMMER TYPE/WEIGHT: /NA

DRILLING CONTRACTOR: Fishburne Drill

CASING TYPE:

CASING SIZE:

Depth (ft)

Date

11.7

Cave in Depth (ft)

09-28-2023

BIT TYPE/SIZE: NA/NA

CHECKED BY: S. Thapa

Date Time

DRILL RIG: CME-45C (Track)

Groundwater Observations

48-hour reading

14.609-25-2023

DRILL METHOD: Mud Rotary

24-hour reading

A E

C O

M S

O

IL

R O

C K

A E

C O

M -G

E O

T E

C H

_P

_1

1-

-2

3.

G

P J

A E

C O

M -G

E O

T E

C H

_P R

O

JE

C T

-D E

S

IG

N .G

D T

/1

0/

R E

V -0

PROJECT NUMBER: 60713349

SC = Sonic Core

P = Pitcher Sample

H = Hand Auger Sample SHEET 1 of 1

COORDINATES: N 336666.097 E 2501928.714

DESCRIPTION

12420 Milestone Center Drive, Suite 150 Germantown, MD 20876

PS = Piston Sample

RC = Rock Core

PROJECT NUMBER: 60713349

B = Bulk Sample

T = Shelby Tube Sample

Log of Boring B-07-TW

G = Geoprobe

S = Split Spoon SampleAECOM TECHNICAL SERVICES, INC.

PROJECT: P-1556 10th Marine Operations & Maintenance Complex

PROJECT LOCATION: MCB Camp Lejeune, Jacksonville, NC

F in es C on te nt

P oc ke t P en ts f)

D E

P T

H

F T

T Y

P

E REMARKS

AND TESTS

N U

M B

E R

Li qu id L im itSAMPLES

G R

A P

H

IC

P la st ic

L im it

U S

C S

BLOWS M

oi st ur e C on te nt

E

LE

V

F T

S T

R A

T U

M

R E

C

IN

0.2 - 0.9 ft: CRUSHED STONE BASE, (2.5-11.0")

0.9 - 6.2 ft: UNCONTROLLED FILL sampled as moist, medium dense, reddish brown, Silty Sand, mixed appearance

4.2 ft: changes to loose

6.2 - 7.7 ft: Silty Clayey Sand, UNCONTROLLED FILL sampled as moist, very loose, Silty Clayey Sand, mixed appearance

7.7 - 8.2 ft: Moist, very loose, light reddish brown, CLAYEY SAND

8.2 - 11.2 ft: Moist, soft, light brownish gray with mottles of light reddish brown, LEAN

CLAY WITH SAND

11.2 - 23.0 ft: Moist, loose, light gray with bands of yellowish red, SILTY SAND

23.0 - 28.0 ft: Wet, medium dense, light grayish brown to grayish brown, POORLY

GRADED SAND WITH SILT

44.7

11.6

S-1

S-2

S-3

S-4

S-5

S-6

S-7

S-8

S-9

24 17

SM

SC-

SM

SC

CL

SM

SP-

SM

20- 11- 11- 9 (N=22)

8- 8- 7- 6 (N=15)

3- 4- 3- 3 (N=7)

1- 1- 2- 3 (N=3)

2- 1- 1- 2 (N=2)

2- 2- 2- 4 (N=4)

4- 3- 5- 6 (N=8)

4- 3- 5- 6 (N=8)

10- 11- 14- 9 (N=25)

19.6

12.1

A

B2

B1

(88%)

(96%)

(88%)

(100%)

(75%)

(54%)

(71%)

(83%)

(96%)

DRILLER: Ed Hester

DATE STARTED: 9/28/2023

At completion

EventDATE COMPLETED: 9/28/2023

BOREHOLE DEPTH: 30.0 FT

SURFACE ELEVATION: 23 FT

LOGGED BY: A. Harding

HAMMER TYPE/WEIGHT: Auto Hammer/140lbs

DRILLING CONTRACTOR: Fishburne Drill

CASING TYPE: Steel

CASING SIZE: 3-1/4

Depth (ft)

Date Cave in Depth (ft)

BIT TYPE/SIZE: NA/NA

CHECKED BY: J. Kaselow

Date Time

DRILL RIG: CME-45C (Track)

Groundwater Observations

23.016:2009-28-2023

DRILL METHOD: Mud Rotary

A E

C O

M S

O

IL

R O

C K

A E

C O

M -G

E O

T E

C H

_P

_1

1-

-2

3.

G

P J

A E

C O

M -G

E O

T E

C H

_P R

O

JE

C T

-D E

S

IG

N .G

D T

/1

0/

R E

V -0

PROJECT NUMBER: 60713349

SC = Sonic Core

P = Pitcher Sample

H = Hand Auger Sample SHEET 1 of 2

COORDINATES: N 336645.476 E 2502025.131

DESCRIPTION

12420 Milestone Center Drive, Suite 150 Germantown, MD 20876

PS = Piston Sample

RC = Rock Core

PROJECT NUMBER: 60713349

B = Bulk Sample

T = Shelby Tube Sample

Log of Boring B-08

G = Geoprobe

S = Split Spoon SampleAECOM TECHNICAL SERVICES, INC.

PROJECT: P-1556 10th Marine Operations & Maintenance Complex

PROJECT LOCATION: MCB Camp Lejeune, Jacksonville, NC

F in es C on te nt

P oc ke t P en ts f)

D E

P T

H

F T

T Y

P

E REMARKS

AND TESTS

N U

M B

E R

Li qu id L im itSAMPLES

G R

A P

H

IC

P la st ic

L im it

U S

C S

BLOWS M

oi st ur e C on te nt

E

LE

V

F T

S T

R A

T U

M

R E

C

IN

28.0 - 30.0 ft: Wet, medium dense, grayish brown, SILTY SAND WITH GRAVEL

Boring completed at 30.0 FT on 9/28/2023 at

16:30 HOURS.

Boring tremie-grouted with cement-bentonite grout upon completion.

S-10

SP-

SM

SM

12- 12- 11- 10

(N=23)

B1

(46%)

A E

C O

M S

O

IL

R O

C K

A E

C O

M -G

E O

T E

C H

_P

_1

1-

-2

3.

G

P J

A E

C O

M -G

E O

T E

C H

_P R

O

JE

C T

-D E

S

IG

N .G

D T

/1

0/

R E

V -0

PROJECT NUMBER: 60713349

SC = Sonic Core

P = Pitcher Sample

H = Hand Auger Sample SHEET 2 of 2

COORDINATES: N 336645.476 E 2502025.131

DESCRIPTION

12420 Milestone Center Drive, Suite 150 Germantown, MD 20876

PS = Piston Sample

RC = Rock Core

PROJECT NUMBER: 60713349

B = Bulk Sample

T = Shelby Tube Sample

Log of Boring B-08

G = Geoprobe

S = Split Spoon SampleAECOM TECHNICAL SERVICES, INC.

PROJECT: P-1556 10th Marine Operations & Maintenance Complex

PROJECT LOCATION: MCB Camp Lejeune, Jacksonville, NC

F in es C on te nt

P oc ke t P en ts f)

D E

P T

H

F T

T Y

P

E REMARKS

AND TESTS

N U

M B

E R

Li qu id L im itSAMPLES

G R

A P

H

IC

P la st ic

L im it

U S

C S

BLOWS M

oi st ur e C on te nt

E

LE

V

F T

-5

S T

R A

T U

M

R E

C

IN

0.0 - 0.3 ft: ASPHALT, (0.0 - 4.0")

0.3 - 1.1 ft: CRUSHED STONE BASE, (4.0 - 9.0")

1.1 - 2.9 ft: UNCONTROLLED FILL sampled as moist, medium dense, brown to grayish brown, Silty Sand, mixed appearance

2.9 - 3.6 ft: UNCONTROLLED FILL sampled as moist, medium dense, grayish brown, Clayey Sand, mixed appearance

3.6 - 6.3 ft: UNCONTROLLED FILL sampled as moist, Poorly Graded Sand With Silt, mixed appearance

4.3 ft: changes to medium dense

6.3 - 7.4 ft: Moist, loose, brownish gray, CLAYEY SAND

7.4 - 8.9 ft: Moist, very loose, light brown, POORLY GRADED SAND WITH SILT

8.9 - 10.3 ft: Moist, very loose, brownish gray and reddish brown, CLAYEY SAND

10.3 - 18.0 ft: Moist, soft, brownish gray with mottles of reddish brown, SANDY LEAN

CLAY

18.0 - 23.0 ft: Moist, loose, light reddish brown to brownish gray, SILTY SAND

23.0 - 28.7 ft: Wet, very loose, dark gray, POORLY GRADED SAND WITH SILT

30.9

56.2

12.4

4.3ft: PID=0.2 ppm

6.3ft: PID=0.2 ppm

8.3ft: PID=0.2 ppm

13.0ft: PID=0.2 ppm

S-1

S-2

S-3

S-4

S-5

S-6

S-7

S-8

S-9

SM

SC

SP-

SM

SC

SC-

SM

SC

CL

SM

SP-

SM

10- 11- 10- 6 (N=21)

6- 8- 10- 10 (N=18)

3- 7- 5- 4 (N=12)

3- 4- 4- 4 (N=8)

3- 1- 1- 1 (N=2)

1- 1- 1- 1 (N=2)

1- 1- 2- 4 (N=3)

2- 3- 5- 7 (N=8)

2- 1- 0- 1 (N=1)

20.5

31.9

17.9

A

B1

B2

B1

(79%)

(75%)

(63%)

(75%)

(63%)

(100%)

(92%)

(71%)

(100%)

DRILLER: Ed Hester

DATE STARTED: 9/29/2023

At completion

EventDATE COMPLETED: 9/29/2023

BOREHOLE DEPTH: 50.0 FT

SURFACE ELEVATION: 23 FT

LOGGED BY: A. Harding

HAMMER TYPE/WEIGHT: Auto Hammer/140lbs

DRILLING CONTRACTOR: Fishburne Drill

CASING TYPE: Steel

CASING SIZE: 3-1/4

Depth (ft)

Date Cave in Depth (ft)

BIT TYPE/SIZE: NA/NA

CHECKED BY: J. Kaselow

Date Time

DRILL RIG: CME-45C (Track)

Groundwater Observations

23.012:0009-29-2023

DRILL METHOD: Mud Rotary

A E

C O

M S

O

IL

R O

C K

A E

C O

M -G

E O

T E

C H

_P

_1

1-

-2

3.

G

P J

A E

C O

M -G

E O

T E

C H

_P R

O

JE

C T

-D E

S

IG

N .G

D T

/1

0/

R E

V -0

PROJECT NUMBER: 60713349

SC = Sonic Core

P = Pitcher Sample

H = Hand Auger Sample SHEET 1 of 2

COORDINATES: N 336726.17 E 2502134.046

DESCRIPTION

12420 Milestone Center Drive, Suite 150 Germantown, MD 20876

PS = Piston Sample

RC = Rock Core

PROJECT NUMBER: 60713349

B = Bulk Sample

T = Shelby Tube Sample

Log of Boring B-09

G = Geoprobe

S = Split Spoon SampleAECOM TECHNICAL SERVICES, INC.

PROJECT: P-1556 10th Marine Operations & Maintenance Complex

PROJECT LOCATION: MCB Camp Lejeune, Jacksonville, NC

F in es C on te nt

P oc ke t P en ts f)

D E

P T

H

F T

T Y

P

E REMARKS

AND TESTS

N U

M B

E R

Li qu id L im itSAMPLES

G R

A P

H

IC

P la st ic

L im it

U S

C S

BLOWS M

oi st ur e C on te nt

E

LE

V

F T

S T

R A

T U

M

R E

C

IN

28.7 - 33.0 ft: Wet, very loose, light brown to tan, SILTY SAND WITH GRAVEL

33.0 - 38.0 ft: Moist, medium dense, brown to reddish brown, SILTY SAND

38.0 - 43.0 ft: Moist, medium dense, gray, POORLY GRADED SAND WITH SILT

43.0 - 50.0 ft: Moist, medium dense, gray, SILTY SAND

Boring completed at 50.0 FT on 9/29/2023 at

13:00 HOURS.

Boring tremie-grouted with cement-bentonite grout upon completion.

10.6

28.0ft: PID=0.2 ppm

33.0ft: PID=0.2 ppm

S-10

S-11

S-12

S-13

S-14

SP-

SM

SM

SM

SP-

SM

SM

1- 1- 1- 4 (N=2)

9- 11- 14- 10 (N=25)

15- 13- 8- 18 (N=21)

15- 9- 9- 11 (N=18)

5- 4- 6- 10 (N=10)

12.2

B1

(100%)

(88%)

(54%)

(100%)

(83%)

A E

C O

M S

O

IL

R O

C K

A E

C O

M -G

E O

T E

C H

_P

_1

1-

-2

3.

G

P J

A E

C O

M -G

E O

T E

C H

_P R

O

JE

C T

-D E

S

IG

N .G

D T

/1

0/

R E

V -0

PROJECT NUMBER: 60713349

SC = Sonic Core

P = Pitcher Sample

H = Hand Auger Sample SHEET 2 of 2

COORDINATES: N 336726.17 E 2502134.046

DESCRIPTION

12420 Milestone Center Drive, Suite 150 Germantown, MD 20876

PS = Piston Sample

RC = Rock Core

PROJECT NUMBER: 60713349

B = Bulk Sample

T = Shelby Tube Sample

Log of Boring B-09

G = Geoprobe

S = Split Spoon SampleAECOM TECHNICAL SERVICES, INC.

PROJECT: P-1556 10th Marine Operations & Maintenance Complex

PROJECT LOCATION: MCB Camp Lejeune, Jacksonville, NC

F in es C on te nt

P oc ke t P en ts f)

D E

P T

H

F T

T Y

P

E REMARKS

AND TESTS

N U

M B

E R

Li qu id L im itSAMPLES

G R

A P

H

IC

P la st ic

L im it

U S

C S

BLOWS M

oi st ur e C on te nt

E

LE

V

F T

-5

-10

-15

-20

-25

S T

R A

T U

M

R E

C

IN

(2.0-12.0")

1.0 - 6.2 ft: UNCONTROLLED FILL sampled as moist, medium dense, brownish gray and gray, Silty Sand, mixed appearance

2.2 ft: changes to brown to grayish brown

4.2 ft: changes to loose

Boring completed at 6.2 FT on 9/29/2023.

Boring tremie-grouted with cement-bentonite grout upon completion.

13.3

0.2ft: PID=0.1 ppm

5.9ft: Encountered edge of sewer line. Boring terminated and backfilled. Relocated the boring by approx. 15ft and drilled boring B-10A.

S-1

"S-2

"S-3

SM

21- 16- 14- 15 (N=30)

13- 15- 13- 13 (N=28)

6- 4- 6- 32 (N=10)

8.5A

(63%)

(100%)

(100%)

DRILLER: Ed Hester

DATE STARTED: 9/29/2023

At completion

EventDATE COMPLETED: 9/29/2023

BOREHOLE DEPTH: 6.2 FT

SURFACE ELEVATION: 23 FT

LOGGED BY: A. Harding

09-30-2024

HAMMER TYPE/WEIGHT: Auto Hammer/140lbs

DRILLING CONTRACTOR: Fishburne Drill

CASING TYPE: Steel

CASING SIZE: 3-1/4

Depth (ft)

Date Cave in Depth (ft)

BIT TYPE/SIZE: NA/NA

CHECKED BY: A. Singh

Date Time

DRILL RIG: CME-45C (Track)

Groundwater Observations

Dry12:0009-29-2023

DRILL METHOD: Mud Rotary

A E

C O

M S

O

IL

R O

C K

A E

C O

M -G

E O

T E

C H

_P

_1

1-

-2

3.

G

P J

A E

C O

M -G

E O

T E

C H

_P R

O

JE

C T

-D E

S

IG

N .G

D T

/1

0/

R E

V -0

PROJECT NUMBER: 60713349

SC = Sonic Core

P = Pitcher Sample

H = Hand Auger Sample SHEET 1 of 1

COORDINATES: N 336567.14 E 2502056.523

DESCRIPTION

12420 Milestone Center Drive, Suite 150 Germantown, MD 20876

PS = Piston Sample

RC = Rock Core

PROJECT NUMBER: 60713349

B = Bulk Sample

T = Shelby Tube Sample

Log of Boring B-10

G = Geoprobe

S = Split Spoon SampleAECOM TECHNICAL SERVICES, INC.

PROJECT: P-1556 10th Marine Operations & Maintenance Complex

PROJECT LOCATION: MCB Camp Lejeune, Jacksonville, NC

F in es C on te nt

P oc ke t P en ts f)

D E

P T

H

F T

T Y

P

E REMARKS

AND TESTS

N U

M B

E R

Li qu id L im itSAMPLES

G R

A P

H

IC

P la st ic

L im it

U S

C S

BLOWS M

oi st ur e C on te nt

E

LE

V

F T

S T

R A

T U

M

R E

C

IN

(2.0-12.0")

1.0 - 2.2 ft: medium dense, UNCONTROLLED FILL sampled as moist, medium dense, brownish gray and gray, Silty Sand, mixed appearance

2.2 - 6.0 ft: medium dense, UNCONTROLLED FILL sampled as moist, medium dense, brown to grayish brown, Poorly Graded Sand With Silt, mixed appearance

6.0 - 8.0 ft: Moist, medium dense, light brown, POORLY GRADED SAND WITH SILT

8.0 - 10.0 ft: Moist, loose, light reddish brown to olive green, CLAYEY SAND

10.0 - 13.5 ft: Moist, soft, light reddish brown to gray, FAT CLAY WITH SAND

13.5 - 18.0 ft: Moist, very loose, light brownish gray and reddish brown, CLAYEY SAND, contains oxidation bands

18.0 - 23.0 ft: Moist, very loose, light reddish brown and gray, SILTY SAND, contains oxidation bands

23.0 - 29.7 ft: Wet, very loose, reddish brown, POORLY GRADED SAND WITH SILT

13.3

44.4

6.5

0.0ft: Boring B-10A was drilled at an offset of approx. 15ft from B-10. 0 to 6ft was sampled from Boring B-10

4.0ft: PID < 0.1ppm

6.0ft: PID < 0.1ppm

8.0ft: PID < 0.1ppm

10.0ft: PID < 0.1ppm

13.5ft: PID < 0.1ppm

18.0ft: PID < 0.1ppm

23.0ft: PID < 0.1ppm

S-1

S-2

S-1

S-2

S-3

S-4

S-5

S-6

S-7

36 22

SM

SP-

SM

SP-

SM

SC

CH

SC

SM

SP-

SM

21- 16- 14- 15 (N=30)

13- 15- 13- 13 (N=28)

6- 7- 6- 5 (N=13)

4- 5- 4- 6 (N=9)

2- 2- 2- 2 (N=4)

1- 2- 1- 1 (N=3)

2- 1- 1- 3 (N=2)

2- 2- 2- 2 (N=4)

2- 1- 2- 1 (N=3)

8.5

26.8

23.7

A

B1

B2

B1

(63%)

(100%)

(71%)

(71%)

(88%)

(100%)

(88%)

(67%)

(71%)

DRILLER: Ed Hester

DATE STARTED: 9/29/2023

At completion

EventDATE COMPLETED: 10/3/2023

BOREHOLE DEPTH: 50.0 FT

SURFACE ELEVATION: 23 FT

LOGGED BY: A. Harding

HAMMER TYPE/WEIGHT: Auto Hammer/140lbs

DRILLING CONTRACTOR: Fishburne Drill

CASING TYPE: Steel

CASING SIZE: 3-1/4

Depth (ft)

Date Cave in Depth (ft)

BIT TYPE/SIZE: NA/NA

CHECKED BY: A. Singh

Date Time

DRILL RIG: CME-45C (Track)

Groundwater Observations

18.010-04-2023

DRILL METHOD: Mud Rotary

A E

C O

M S

O

IL

R O

C K

A E

C O

M -G

E O

T E

C H

_P

_1

1-

-2

3.

G

P J

A E

C O

M -G

E O

T E

C H

_P R

O

JE

C T

-D E

S

IG

N .G

D T

/1

0/

R E

V -0

PROJECT NUMBER: 60713349

SC = Sonic Core

P = Pitcher Sample

H = Hand Auger Sample SHEET 1 of 2

COORDINATES: N 336567.14 E 2502056.523

DESCRIPTION

12420 Milestone Center Drive, Suite 150 Germantown, MD 20876

PS = Piston Sample

RC = Rock Core

PROJECT NUMBER: 60713349

B = Bulk Sample

T = Shelby Tube Sample

Log of Boring B-10A

G = Geoprobe

S = Split Spoon SampleAECOM TECHNICAL SERVICES, INC.

PROJECT: P-1556 10th Marine Operations & Maintenance Complex

PROJECT LOCATION: MCB Camp Lejeune, Jacksonville, NC

F in es C on te nt

P oc ke t P en ts f)

D E

P T

H

F T

T Y

P

E REMARKS

AND TESTS

N U

M B

E R

Li qu id L im itSAMPLES

G R

A P

H

IC

P la st ic

L im it

U S

C S

BLOWS M

oi st ur e C on te nt

E

LE

V

F T

S T

R A

T U

M

R E

C

IN

23.0 - 29.7 ft: Wet, very loose, reddish brown, POORLY GRADED SAND WITH

SILT(continued)

29.7 - 38.0 ft: Wet, light brown, SILTY SAND WITH GRAVEL, contains coral shell fragments

33.0 ft: changes to medium dense

38.0 - 43.0 ft: Wet, medium dense, light brown, SILTY GRAVEL WITH SAND, contains coral shell fragments

43.0 - 48.0 ft: Wet, medium dense, light brown, SILTY SAND WITH GRAVEL, contains coral shell fragments

48.0 - 50.0 ft: Moist, medium dense, gray, SANDY LEAN CLAY, contains shell fragments

Boring completed at 50.0 FT on 10/3/2023.

Boring tremie-grouted with cement-bentonite grout upon completion.

28.0ft: PID < 0.1ppm

33.0ft: PID < 0.1ppm

38.0ft: PID < 0.1ppm

43.0ft: PID < 0.1ppm

48.0ft: PID < 0.1ppm

S-8

S-9

S-10

S-11

S-12

SP-

SM

SM

GM

SM

CL

0- 0- 1- 1 (N=1)

9- 12- 8- 8 (N=20)

6- 11- 8- 13 (N=19)

10- 8- 9- 11 (N=17)

6- 6- 7- 10 (N=13)

B1

B2

(63%)

(83%)

(88%)

(100%)

(100%)

A E

C O

M S

O

IL

R O

C K

A E

C O

M -G

E O

T E

C H

_P

_1

1-

-2

3.

G

P J

A E

C O

M -G

E O

T E

C H

_P R

O

JE

C T

-D E

S

IG

N .G

D T

/1

0/

R E

V -0

PROJECT NUMBER: 60713349

SC = Sonic Core

P = Pitcher Sample

H = Hand Auger Sample SHEET 2 of 2

COORDINATES: N 336567.14 E 2502056.523

DESCRIPTION

12420 Milestone Center Drive, Suite 150 Germantown, MD 20876

PS = Piston Sample

RC = Rock Core

PROJECT NUMBER: 60713349

B = Bulk Sample

T = Shelby Tube Sample

Log of Boring B-10A

G = Geoprobe

S = Split Spoon SampleAECOM TECHNICAL SERVICES, INC.

PROJECT: P-1556 10th Marine Operations & Maintenance Complex

PROJECT LOCATION: MCB Camp Lejeune, Jacksonville, NC

F in es C on te nt

P oc ke t P en ts f)

D E

P T

H

F T

T Y

P

E REMARKS

AND TESTS

N U

M B

E R

Li qu id L im itSAMPLES

G R

A P

H

IC

P la st ic

L im it

U S

C S

BLOWS M

oi st ur e C on te nt

E

LE

V

F T

-5

-10

-15

-20

-25

S T

R A

T U

M

R E

C

IN

0.2 - 1.1 ft: CRUSHED STONE BASE, (2.0-12.0")

1.1 - 2.2 ft: UNCONTROLLED FILL sampled as moist, medium dense, brown, Silty Sand, mixed appearance

2.2 - 3.2 ft: UNCONTROLLED FILL sampled as moist, medium dense, grayish brown, Poorly Graded Sand With Silt, mixed appearance

3.2 - 4.4 ft: UNCONTROLLED FILL sampled as moist, medium dense, light reddish brown, Silty Sand, mixed appearance

4.4 - 7.7 ft: Moist, loose, light brownish gray, CLAYEY SAND, contains oxidation mottling

6.2 ft: changes to medium dense

7.7 - 10.8 ft: Moist, light brownish gray, POORLY GRADED SAND WITH SILT, contains oxidation mottling

8.2 ft: changes to medium dense

10.8 - 13.0 ft: Moist, loose, light brownish gray, SILTY SAND

13.0 - 18.0 ft: Moist, loose, light brownish gray, CLAYEY SAND

18.0 - 28.0 ft: Wet, medium dense, light reddish brown, SILTY SAND

23.0 ft: changes to very loose

S-1

S-2

S-3

S-4

S-5

S-6

S-7

S-8

S-9

SM

SP-

SM

SM

SC

SP-

SM

SM

SC

SM

15- 10- 9- 7 (N=19)

6- 5- 5- 5 (N=10)

4- 5- 5- 5 (N=10)

2- 4- 6- 8 (N=10)

6- 8- 7- 8 (N=15)

3- 3- 4- 4 (N=7)

1- 3- 1- 2 (N=4)

3- 4- 6- 5 (N=10)

2- 2- 3- 3 (N=5)

13.4

A

B1

(96%)

(79%)

(100%)

(88%)

(42%)

(71%)

(100%)

(58%)

(100%)

DRILLER: Ed Hester

DATE STARTED: 10/3/2023

At completion

EventDATE COMPLETED: 10/3/2023

BOREHOLE DEPTH: 35.0 FT

SURFACE ELEVATION: 24 FT

LOGGED BY: A. Harding

HAMMER TYPE/WEIGHT: Auto Hammer/140lbs

DRILLING CONTRACTOR: Fishburne Drill

CASING TYPE: Steel

CASING SIZE: 3-1/4

Depth (ft)

Date Cave in Depth (ft)

BIT TYPE/SIZE: NA/NA

CHECKED BY: A. Singh

Date Time

DRILL RIG: CME-45C (Track)

Groundwater Observations

13.510-03-2023

DRILL METHOD: Mud Rotary

A E

C O

M S

O

IL

R O

C K

A E

C O

M -G

E O

T E

C H

_P

_1

1-

-2

3.

G

P J

A E

C O

M -G

E O

T E

C H

_P R

O

JE

C T

-D E

S

IG

N .G

D T

/1

0/

R E

V -0

PROJECT NUMBER: 60713349

SC = Sonic Core

P = Pitcher Sample

H = Hand Auger Sample SHEET 1 of 2

COORDINATES: N 336712.438 E 2501678.151

DESCRIPTION

12420 Milestone Center Drive, Suite 150 Germantown, MD 20876

PS = Piston Sample

RC = Rock Core

PROJECT NUMBER: 60713349

B = Bulk Sample

T = Shelby Tube Sample

Log of Boring B-11

G = Geoprobe

S = Split Spoon SampleAECOM TECHNICAL SERVICES, INC.

PROJECT: P-1556 10th Marine Operations & Maintenance Complex

PROJECT LOCATION: MCB Camp Lejeune, Jacksonville, NC

F in es C on te nt

P oc ke t P en ts f)

D E

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E REMARKS

AND TESTS

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18.0 - 28.0 ft: Wet, medium dense, light reddish brown, SILTY SAND(continued)

28.0 - 33.0 ft: Wet, loose, reddish brown, POORLY GRADED SAND

33.0 - 35.0 ft: Moist, medium dense, light reddish brown, POORLY GRADED SAND WITH SILT, contains oxidation bands

Boring completed at 35.0 FT on 10/3/2023.

Boring tremie-grouted with cement-bentonite grout upon completion.

4.1S-10

S-11

SM

SP

SP-

SM

2- 4- 4- 4 (N=8)

5- 10- 12- 15 (N=22)

25.5

B1

(67%)

(71%)

A E

C O

M S

O

IL

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C K

A E

C O

M -G

E O

T E

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_P

_1

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-2

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P J

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V -0

PROJECT NUMBER: 60713349

SC = Sonic Core

P = Pitcher Sample

H = Hand Auger Sample SHEET 2 of 2

COORDINATES: N 336712.438 E 2501678.151

DESCRIPTION

12420 Milestone Center Drive, Suite 150 Germantown, MD 20876

PS = Piston Sample

RC = Rock Core

PROJECT NUMBER: 60713349

B = Bulk Sample

T = Shelby Tube Sample

Log of Boring B-11

G = Geoprobe

S = Split Spoon SampleAECOM TECHNICAL SERVICES, INC.

PROJECT: P-1556 10th Marine Operations & Maintenance Complex

PROJECT LOCATION: MCB Camp Lejeune, Jacksonville, NC

F in es C on te nt

P oc ke t P en ts f)

D E

P T

H

F T

T Y

P

E REMARKS

AND TESTS

N U

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Li qu id L im itSAMPLES

G R

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IC

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-5

-10

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IN

0.0 - 0.2 ft: ASPHALT, 0-2"

0.2 - 0.9 ft: CRUSHED STONE BASE, 2-10"

0.9 - 4.5 ft: UNCONTROLLED FILL sampled as moist, medium dense, light reddish brown and brownish gray, Clayey Sand, mixed appearance

4.5 - 9.2 ft: Moist, loose, light reddish brown and brownish gray, SILTY SAND

8.9 ft: changes to 3" layer of brown FAT

CLAY

9.2 - 12.2 ft: Moist, brownish gray and reddish brown, POORLY GRADED SAND WITH SILT, contains iron oxidation

12.2 - 14.2 ft: Moist, very loose, light reddish brown and light brownish gray, SILTY SAND, contains iron oxidation

13.0 ft: changes to loose

14.2 - 18.0 ft: Moist, brownish gray and light reddish brown, POORLY GRADED SAND

WITH SILT

18.0 - 23.0 ft: Moist, soft, gray to dark gray, FAT CLAY WITH SAND, contains a 4" layer of CLAYEY SAND

23.0 - 30.0 ft: Moist, very loose, dark gray, SILTY SAND

34.7

18.0ft: PID=.1 ppm

S-1

S-2

S-3

S-4

S-5

S-6

S-7

S-8

S-9

28 20

SC

SM

SP-

SM

SM

SP-

SM

CH

SM

22- 13- 10- 12 (N=23)

7- 6- 5- 5 (N=11)

3- 3- 4- 4 (N=7)

3- 3- 4- 4 (N=7)

3- 4- 5- 5 (N=9)

3- 2- 2- 3 (N=4)

2- 4- 3- 6 (N=7)

1- 1- 1- 2 (N=2)

1- 1- 1- 1 (N=2)

14.3

21.5

A

B1

B2

B1

(96%)

(88%)

(100%)

(29%)

(75%)

(67%)

(42%)

(100%)

(100%)

DRILLER: Ed Hester

DATE STARTED: 10/2/2023

At completion

EventDATE COMPLETED: 10/2/2023

BOREHOLE DEPTH: 30.0 FT

SURFACE ELEVATION: 23 FT

LOGGED BY: A. Harding

HAMMER TYPE/WEIGHT: Auto Hammer/140lbs

DRILLING CONTRACTOR: Fishburne Drill

CASING TYPE: Steel

CASING SIZE: 3-1/4

Depth (ft)

Date Cave in Depth (ft)

BIT TYPE/SIZE: NA/NA

CHECKED BY: A. Singh

Date Time

DRILL RIG: CME-45C (Track)

Groundwater Observations

14.016:4010-02-2023

DRILL METHOD: Mud Rotary

A E

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V -0

PROJECT NUMBER: 60713349

SC = Sonic Core

P = Pitcher Sample

H = Hand Auger Sample SHEET 1 of 2

COORDINATES: N 336641.094 E 2501764.561

DESCRIPTION

12420 Milestone Center Drive, Suite 150 Germantown, MD 20876

PS = Piston Sample

RC = Rock Core

PROJECT NUMBER: 60713349

B = Bulk Sample

T = Shelby Tube Sample

Log of Boring B-12

G = Geoprobe

S = Split Spoon SampleAECOM TECHNICAL SERVICES, INC.

PROJECT: P-1556 10th Marine Operations & Maintenance Complex

PROJECT LOCATION: MCB Camp Lejeune, Jacksonville, NC

F in es C on te nt

P oc ke t P en ts f)

D E

P T

H

F T

T Y

P

E REMARKS

AND TESTS

N U

M B

E R

Li qu id L im itSAMPLES

G R

A P

H

IC

P la st ic

L im it

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BLOWS M

oi st ur e C on te nt

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LE

V

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IN

23.0 - 30.0 ft: Moist, very loose, dark gray, SILTY SAND(continued)

Boring completed at 30.0 FT on 10/2/2023.

Boring tremie-grouted with cement-bentonite grout upon completion.

S-10

SM

1- 2- 1- 2 (N=3)

B1

(100%)

A E

C O

M S

O

IL

R O

C K

A E

C O

M -G

E O

T E

C H

_P

_1

1-

-2

3.

G

P J

A E

C O

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_P R

O

JE

C T

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N .G

D T

/1

0/

R E

V -0

PROJECT NUMBER: 60713349

SC = Sonic Core

P = Pitcher Sample

H = Hand Auger Sample SHEET 2 of 2

COORDINATES: N 336641.094 E 2501764.561

DESCRIPTION

12420 Milestone Center Drive, Suite 150 Germantown, MD 20876

PS = Piston Sample

RC = Rock Core

PROJECT NUMBER: 60713349

B = Bulk Sample

T = Shelby Tube Sample

Log of Boring B-12

G = Geoprobe

S = Split Spoon SampleAECOM TECHNICAL SERVICES, INC.

PROJECT: P-1556 10th Marine Operations & Maintenance Complex

PROJECT LOCATION: MCB Camp Lejeune, Jacksonville, NC

F in es C on te nt

P oc ke t P en ts f)

D E

P T

H

F T

T Y

P

E REMARKS

AND TESTS

N U

M B

E R

Li qu id L im itSAMPLES

G R

A P

H

IC

P la st ic

L im it

U S

C S

BLOWS M

oi st ur e C on te nt

E

LE

V

F T

-5

S T

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IN

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