A22 - W912EK24R0007 Amend 0004-Geotech-Boring-Lab-Data Report att 2 of 2.pdf

EXPLORATION RESULTS

Contents:

Boring Logs Unconfined Compressive Strength of Rock Tests Grain Size Distribution Tests Permeability Tests Corrosivity Analysis

BORING LOGS

1-7-7 N=14

5-1-1 N=2

2-2-2 N=4

3-2-4 N=6

4-5-4 N=9

6-6-3 N=9

11.4

17.3

18.1

15.9

23.2

22.7

9" Concrete

FILL - RIP RAP WITH GRAVEL

FILL - CLAYEY SAND WITH GRAVEL , gray, dark gray, and brown

POORLY GRADED SAND (SP), trace silt and gravel, fine to coarse grained, brown, very loose loose below about 14 feet

POORLY GRADED SAND WITH SILT (SP-SM), trace gravel, fine to coarse grained, brown and gray, loose

SILTY SAND (SM), trace gravel, fine to coarse grained, dark gray and brown, medium dense gray clay seam at about 30 feet

0.8

3.5

9.0

17.0

24.0

459.5+/-

456.5+/-

451+/-

443+/-

436+/-

Hammer Type: CME Automatic SPT Hammer Efficiency Correction (CE) = 1.55 (calibrated 3/8/2021)

Stratification lines are approximate. In-situ, the transition may be gradual.

Classification estimated from disturbed or core samples. Petrographic analysis may reveal other rock types.

T H

IS

B

O R

IN

G

L O

G I

S N

O T

V A

L

ID

I F

S E

P A

R A

T E

D F

R O

M O

R

IG

IN

A

L R

E P

O R

T

G E

O S

M A

R T

L O

G -N

O W

E L

D

L

O C

K A

N D

D A

M

.G

P J

T E

R R

A C

O N

D

A T

A T

E M

P L

A T

E .G

T

/1 0/

D E

P T

H

F t.)

W A

T E

R L

E V

E L

O B

S E

R V

A T

IO

N

S

F

IE

LD

T

E S

T R

E S

U L

T S

W A

T E

R C

O N

T E

N T

D R

Y U

N

IT

W E

IG

H

T pc f)LOCATION See Exploration Plan

Latitude: 39.6387° Longitude: -91.2449°

G R

A P

H

IC

L O

G

DEPTH ELEVATION (Ft.)

Approximate Surface Elev.: 460 (Ft.) +/-

Advancement Method:

Hollow Stem Auger to 10.5'; then mud-rotary to 41'; then cored to termination depth

Abandonment Method:

Boring backfilled with cement-bentonite grout upon completion.

Notes:

Project No.: D1205013

Drill Rig: 603 - CME 850XR

BORING LOG NO. BP-1

Stanley Consultants, Inc.CLIENT:

Minneapolis, MN

Driller: SZ

Boring Completed: 03-11-2021

OWNER: United States Army Corps of Engineers

PROJECT: Lock and Dam 22 Fish Passage

Elevation measured in the field using a level and rod

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

See Supporting Information for explanation of symbols and abbreviations.

CTH E / Riverview Drive Saverton, MO

SITE:

Boring Started: 03-11-2021

2640 12th St SW Cedar Rapids, IA

9' while drilling/sampling

WATER LEVEL OBSERVATIONS

R E

C O

V E

R Y

In

N

U N

C O

N F

IN

E

D C

O M

P R

E S

S

IV

E S

T R

E N

G T

H p si

P E

R C

E N

T F

IN

E

S

S A

M P

L E

T Y

P E

4-6-8 N=14

4-7-6 N=13

Rec. = 100%

RQD = 84%

Rec. = 100%

RQD = 93%

17.7

19.2

0.2

0.4

0.5

0.8

SILTY SAND (SM), trace gravel, fine to coarse grained, dark gray and brown, medium dense (continued)

POORLY GRADED SAND (SP), trace, silt, gravel, and shells, fine to coarse grained, gray and dark gray, medium dense LIMESTONE, light gray and gray, very close to moderately close joints, very thin bedding, moderately weathered, hard, calcite filling voids, iron staining fossiliferous below about 57 feet

Boring Terminated at 61 Feet

39.0

41.0

61.0

421+/-

419+/-

399+/-

17260

16620

13940

Hammer Type: CME Automatic SPT Hammer Efficiency Correction (CE) = 1.55 (calibrated 3/8/2021)

Stratification lines are approximate. In-situ, the transition may be gradual.

Classification estimated from disturbed or core samples. Petrographic analysis may reveal other rock types.

T H

IS

B

O R

IN

G

L O

G I

S N

O T

V A

L

ID

I F

S E

P A

R A

T E

D F

R O

M O

R

IG

IN

A

L R

E P

O R

T

G E

O S

M A

R T

L O

G -N

O W

E

L

O C

K A

N D

D A

M

.G

P J

T E

R R

A C

O N

D

A T

A T

E M

P L

A T

E .G

0/

D E

P T

H

F t.)

W A

T E

R L

E V

E L

O B

S E

R V

A T

IO

N

S

F

IE

LD

T

E S

T R

E S

U L

T S

W A

T E

R C

O N

T E

N T

D R

Y U

N

IT

W E

IG

H

T pc f)LOCATION See Exploration Plan

Latitude: 39.6387° Longitude: -91.2449°

G R

A P

H

IC

L O

G

DEPTH ELEVATION (Ft.)

Approximate Surface Elev.: 460 (Ft.) +/-

Advancement Method:

Hollow Stem Auger to 10.5'; then mud-rotary to 41'; then cored to termination depth

Abandonment Method:

Boring backfilled with cement-bentonite grout upon completion.

Notes:

Project No.: D1205013

Drill Rig: 603 - CME 850XR

BORING LOG NO. BP-1

Stanley Consultants, Inc.CLIENT:

Minneapolis, MN

Driller: SZ

Boring Completed: 03-11-2021

OWNER: United States Army Corps of Engineers

PROJECT: Lock and Dam 22 Fish Passage

Elevation measured in the field using a level and rod

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

See Supporting Information for explanation of symbols and abbreviations.

CTH E / Riverview Drive Saverton, MO

SITE:

Boring Started: 03-11-2021

2640 12th St SW Cedar Rapids, IA

9' while drilling/sampling

WATER LEVEL OBSERVATIONS

R E

C O

V E

R Y

In

N

U N

C O

N F

IN

E

D C

O M

P R

E S

S

IV

E S

T R

E N

G T

H p si

P E

R C

E N

T F

IN

E

S

S A

M P

L E

T Y

3-4-5 N=9

3-4-4 N=8

6-6-7 N=13

8-9-10 N=19

4-5-4 N=9

3-5-4 N=9

11.5

16.2

16.9

21.2

23.2

20.3

17" Concrete

FILL - CEMENTED RIP RAP

FILL - SANDY LEAN CLAY WITH GRAVEL , brown

POORLY GRADED SAND (SP), trace silt and gravel, fine to coarse grained, brown, medium dense

POORLY GRADED SAND (SP), trace silt and gravel, fine to coarse grained, dark gray and brown, medium dense

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

1.4

2.7

4.0

24.0

27.0

458.5+/-

457.5+/-

456+/-

436+/-

433+/-

Hammer Type: CME Automatic SPT Hammer Efficiency Correction (CE) = 1.55 (calibrated 3/8/2021)

Stratification lines are approximate. In-situ, the transition may be gradual.

Classification estimated from disturbed or core samples. Petrographic analysis may reveal other rock types.

T H

IS

B

O R

IN

G

L O

G I

S N

O T

V A

L

ID

I F

S E

P A

R A

T E

D F

R O

M O

R

IG

IN

A

L R

E P

O R

T

G E

O S

M A

R T

L O

G -N

O W

E

L

O C

K A

N D

D A

M

.G

P J

T E

R R

A C

O N

D

A T

A T

E M

P L

A T

E .G

0/

D E

P T

H

F t.)

W A

T E

R L

E V

E L

O B

S E

R V

A T

IO

N

S

F

IE

LD

T

E S

T R

E S

U L

T S

W A

T E

R C

O N

T E

N T

D R

Y U

N

IT

W E

IG

H

T pc f)LOCATION See Exploration Plan

Latitude: 39.6388° Longitude: -91.2448°

G R

A P

H

IC

L O

G

DEPTH ELEVATION (Ft.)

Approximate Surface Elev.: 460 (Ft.) +/-

Advancement Method:

Hollow Stem Auger to 10.5'; then mud-rotary to 41.5'; then cored to termination depth

Abandonment Method:

Boring backfilled with cement-bentonite grout upon completion.

Notes:

Project No.: D1205013

Drill Rig: 603 - CME 850XR

BORING LOG NO. BP-2

Stanley Consultants, Inc.CLIENT:

Minneapolis, MN

Driller: SZ

Boring Completed: 03-11-2021

OWNER: United States Army Corps of Engineers

PROJECT: Lock and Dam 22 Fish Passage

Elevation measured in the field using a level and rod

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

See Supporting Information for explanation of symbols and abbreviations.

CTH E / Riverview Drive Saverton, MO

SITE:

Boring Started: 03-11-2021

2640 12th St SW Cedar Rapids, IA

8' while drilling/sampling

WATER LEVEL OBSERVATIONS

R E

C O

V E

R Y

In

N

U N

C O

N F

IN

E

D C

O M

P R

E S

S

IV

E S

T R

E N

G T

H p si

P E

R C

E N

T F

IN

E

S

S A

M P

L E

T Y

5-5-7 N=12

6-7-6 N=13

Rec. = 100%

RQD = 92%

Rec. = 100%

RQD = 90%

19.9

11.2

0.3

0.5

0.5

0.3

POORLY GRADED SAND (SP), trace silt and gravel, fine to coarse grained, gray, medium dense

POORLY GRADED SAND (SP), trace silt and gravel, fine to coarse grained, gray, dark gray, and brown, medium dense

LIMESTONE, light gray and gray, very close to moderately close joints, very thin bedding, moderately weathered, hard, calcite filling voids, iron staining fossiliferous below about 57.5 feet

Boring Terminated at 61.5 Feet

33.0

38.0

41.5

61.5

427+/-

422+/-

418.5+/-

398.5+/-

14600

14400

12820

Hammer Type: CME Automatic SPT Hammer Efficiency Correction (CE) = 1.55 (calibrated 3/8/2021)

Stratification lines are approximate. In-situ, the transition may be gradual.

Classification estimated from disturbed or core samples. Petrographic analysis may reveal other rock types.

T H

IS

B

O R

IN

G

L O

G I

S N

O T

V A

L

ID

I F

S E

P A

R A

T E

D F

R O

M O

R

IG

IN

A

L R

E P

O R

T

G E

O S

M A

R T

L O

G -N

O W

E

L

O C

K A

N D

D A

M

.G

P J

T E

R R

A C

O N

D

A T

A T

E M

P L

A T

E .G

0/

D E

P T

H

F t.)

W A

T E

R L

E V

E L

O B

S E

R V

A T

IO

N

S

F

IE

LD

T

E S

T R

E S

U L

T S

W A

T E

R C

O N

T E

N T

D R

Y U

N

IT

W E

IG

H

T pc f)LOCATION See Exploration Plan

Latitude: 39.6388° Longitude: -91.2448°

G R

A P

H

IC

L O

G

DEPTH ELEVATION (Ft.)

Approximate Surface Elev.: 460 (Ft.) +/-

Advancement Method:

Hollow Stem Auger to 10.5'; then mud-rotary to 41.5'; then cored to termination depth

Abandonment Method:

Boring backfilled with cement-bentonite grout upon completion.

Notes:

Project No.: D1205013

Drill Rig: 603 - CME 850XR

BORING LOG NO. BP-2

Stanley Consultants, Inc.CLIENT:

Minneapolis, MN

Driller: SZ

Boring Completed: 03-11-2021

OWNER: United States Army Corps of Engineers

PROJECT: Lock and Dam 22 Fish Passage

Elevation measured in the field using a level and rod

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

See Supporting Information for explanation of symbols and abbreviations.

CTH E / Riverview Drive Saverton, MO

SITE:

Boring Started: 03-11-2021

2640 12th St SW Cedar Rapids, IA

8' while drilling/sampling

WATER LEVEL OBSERVATIONS

R E

C O

V E

R Y

In

N

U N

C O

N F

IN

E

D C

O M

P R

E S

S

IV

E S

T R

E N

G T

H p si

P E

R C

E N

T F

IN

E

S

14120

S A

M P

L E

T Y

4-1-5 N=6

SPT = 12-50/6"

4-7-7 N=14

3-4-2 N=6

5-5-5 N=10

4-5-3 N=8

33.6

17.6

17.5

24.1

24.8

9" Concrete FILL - , 6" Crushed Limestone

FILL - CEMENTED RIP RAP

FILL - RIP RAP WITH CLAY , gray and brown

FILL - RIP RAP and SANDY GRAVEL , trace clay, gray

WELL GRADED SAND WITH SILT AND GRAVEL (SP-SM),

fine to coarse grained, gray and dark gray, loose

POORLY GRADED SAND (SP), trace silt and gravel, fine to coarse grained, dark gray and brown, medium dense

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

0.8 1.3

4.0

13.0

17.5

24.0

29.0

459.5+/- 459+/-

456+/-

447+/-

442.5+/-

436+/-

431+/-

Hammer Type: CME Automatic SPT Hammer Efficiency Correction (CE) = 1.55 (calibrated 3/8/2021)

Stratification lines are approximate. In-situ, the transition may be gradual.

Classification estimated from disturbed or core samples. Petrographic analysis may reveal other rock types.

T H

IS

B

O R

IN

G

L O

G I

S N

O T

V A

L

ID

I F

S E

P A

R A

T E

D F

R O

M O

R

IG

IN

A

L R

E P

O R

T

G E

O S

M A

R T

L O

G -N

O W

E

L

O C

K A

N D

D A

M

.G

P J

T E

R R

A C

O N

D

A T

A T

E M

P L

A T

E .G

0/

D E

P T

H

F t.)

W A

T E

R L

E V

E L

O B

S E

R V

A T

IO

N

S

F

IE

LD

T

E S

T R

E S

U L

T S

W A

T E

R C

O N

T E

N T

D R

Y U

N

IT

W E

IG

H

T pc f)LOCATION See Exploration Plan

Latitude: 39.6388° Longitude: -91.2447°

G R

A P

H

IC

L O

G

DEPTH ELEVATION (Ft.)

Approximate Surface Elev.: 460 (Ft.) +/-

Advancement Method:

Hollow Stem Auger to 15.5'; then mud-rotary to 41.2'; then cored to termination depth

Abandonment Method:

Boring backfilled with cement-bentonite grout upon completion.

Notes:

Project No.: D1205013

Drill Rig: 603 - CME 850XR

BORING LOG NO. BP-3

Stanley Consultants, Inc.CLIENT:

Minneapolis, MN

Driller: SZ

Boring Completed: 03-11-2021

OWNER: United States Army Corps of Engineers

PROJECT: Lock and Dam 22 Fish Passage

Elevation measured in the field using a level and rod

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

See Supporting Information for explanation of symbols and abbreviations.

CTH E / Riverview Drive Saverton, MO

SITE:

Boring Started: 03-11-2021

2640 12th St SW Cedar Rapids, IA

9' while drilling/sampling

WATER LEVEL OBSERVATIONS

R E

C O

V E

R Y

In

N

U N

C O

N F

IN

E

D C

O M

P R

E S

S

IV

E S

T R

E N

G T

H p si

P E

R C

E N

T F

IN

E

S

S A

M P

L E

T Y

4-6-7 N=13

4-6-7 N=13

Rec. = 100%

RQD = 79%

Rec. = 100%

RQD = 85%

22.3

20.0

0.5

0.5

0.2

0.2

POORLY GRADED SAND (SP), trace silt and gravel, fine to coarse grained, gray, dark gray, and brown, medium dense

LIMESTONE, light gray and gray, very close to moderately close joints, very thin bedding, moderately weathered, hard, calcite filling voids, iron staining fossiliferous below about 57.5 feet

Boring Terminated at 61.2 Feet

33.0

41.2

61.2

427+/-

419+/-

399+/-

Hammer Type: CME Automatic SPT Hammer Efficiency Correction (CE) = 1.55 (calibrated 3/8/2021)

Stratification lines are approximate. In-situ, the transition may be gradual.

Classification estimated from disturbed or core samples. Petrographic analysis may reveal other rock types.

T H

IS

B

O R

IN

G

L O

G I

S N

O T

V A

L

ID

I F

S E

P A

R A

T E

D F

R O

M O

R

IG

IN

A

L R

E P

O R

T

G E

O S

M A

R T

L O

G -N

O W

E

L

O C

K A

N D

D A

M

.G

P J

T E

R R

A C

O N

D

A T

A T

E M

P L

A T

E .G

0/

D E

P T

H

F t.)

W A

T E

R L

E V

E L

O B

S E

R V

A T

IO

N

S

F

IE

LD

T

E S

T R

E S

U L

T S

W A

T E

R C

O N

T E

N T

D R

Y U

N

IT

W E

IG

H

T pc f)LOCATION See Exploration Plan

Latitude: 39.6388° Longitude: -91.2447°

G R

A P

H

IC

L O

G

DEPTH ELEVATION (Ft.)

Approximate Surface Elev.: 460 (Ft.) +/-

Advancement Method:

Hollow Stem Auger to 15.5'; then mud-rotary to 41.2'; then cored to termination depth

Abandonment Method:

Boring backfilled with cement-bentonite grout upon completion.

Notes:

Project No.: D1205013

Drill Rig: 603 - CME 850XR

BORING LOG NO. BP-3

Stanley Consultants, Inc.CLIENT:

Minneapolis, MN

Driller: SZ

Boring Completed: 03-11-2021

OWNER: United States Army Corps of Engineers

PROJECT: Lock and Dam 22 Fish Passage

Elevation measured in the field using a level and rod

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

See Supporting Information for explanation of symbols and abbreviations.

CTH E / Riverview Drive Saverton, MO

SITE:

Boring Started: 03-11-2021

2640 12th St SW Cedar Rapids, IA

9' while drilling/sampling

WATER LEVEL OBSERVATIONS

R E

C O

V E

R Y

In

N

U N

C O

N F

IN

E

D C

O M

P R

E S

S

IV

E S

T R

E N

G T

H p si

P E

R C

E N

T F

IN

E

S

13960

15720

12160

18000

S A

M P

L E

T Y

5-4-4 N=8

3-1-2 N=3

5-6-6 N=12

5-8-8 N=16

3-5-5 N=10

3-9-4 N=13

15.5

17.7

16.9

18.6

19.6

25.0

19" Concrete

FILL - CEMENTED RIP RAP

FILL - SANDY LEAN CLAY WITH GRAVEL

POORLY GRADED SAND (SP), trace silt, fine to medium grained, brown, medium dense

POORLY GRADED SAND (SP), trace silt, fine to medium grained, gray and brown, loose medium dense below about 14 feet

POORLY GRADED SAND (SP), trace silt and gravel, fine to coarse grained, dark gray and brown, medium dense

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

1.6

3.0 3.5

9.0

18.0

29.0

458.5+/-

457+/- 456.5+/-

451+/-

442+/-

431+/-

Hammer Type: CME Automatic SPT Hammer Efficiency Correction (CE) = 1.55 (calibrated 3/8/2021)

Stratification lines are approximate. In-situ, the transition may be gradual.

Classification estimated from disturbed or core samples. Petrographic analysis may reveal other rock types.

T H

IS

B

O R

IN

G

L O

G I

S N

O T

V A

L

ID

I F

S E

P A

R A

T E

D F

R O

M O

R

IG

IN

A

L R

E P

O R

T

G E

O S

M A

R T

L O

G -N

O W

E

L

O C

K A

N D

D A

M

.G

P J

T E

R R

A C

O N

D

A T

A T

E M

P L

A T

E .G

0/

D E

P T

H

F t.)

W A

T E

R L

E V

E L

O B

S E

R V

A T

IO

N

S

F

IE

LD

T

E S

T R

E S

U L

T S

W A

T E

R C

O N

T E

N T

D R

Y U

N

IT

W E

IG

H

T pc f)LOCATION See Exploration Plan

Latitude: 39.6389° Longitude: -91.2447°

G R

A P

H

IC

L O

G

DEPTH ELEVATION (Ft.)

Approximate Surface Elev.: 460 (Ft.) +/-

Advancement Method:

Hollow Stem Auger to 10.5'; then mud-rotary to 41.5'; then cored to termination depth

Abandonment Method:

Boring backfilled with cement-bentonite grout upon completion.

Notes:

Project No.: D1205013

Drill Rig: 603 - CME 850XR

BORING LOG NO. BP-4

Stanley Consultants, Inc.CLIENT:

Minneapolis, MN

Driller: SZ

Boring Completed: 03-10-2021

OWNER: United States Army Corps of Engineers

PROJECT: Lock and Dam 22 Fish Passage

Elevation measured in the field using a level and rod

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

See Supporting Information for explanation of symbols and abbreviations.

CTH E / Riverview Drive Saverton, MO

SITE:

Boring Started: 03-10-2021

2640 12th St SW Cedar Rapids, IA

9.5' while drilling/sampling

WATER LEVEL OBSERVATIONS

R E

C O

V E

R Y

In

N

U N

C O

N F

IN

E

D C

O M

P R

E S

S

IV

E S

T R

E N

G T

H p si

P E

R C

E N

T F

IN

E

S

S A

M P

L E

T Y

4-5-5 N=10

6-8-8 N=16

Rec. = 98%

RQD = 83%

Rec. = 100%

RQD = 85%

16.2

19.9

0.6

0.2

0.4

0.6

POORLY GRADED SAND WITH SILT (SP-SM), fine to medium grained, brown and gray, medium dense (continued)

POORLY GRADED SAND (SP), trace silt, gravel, and shells, fine to coarse grained, brown and gray, medium dense

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

LIMESTONE, light gray and gray, very close to moderately close joints, very thin bedding, moderately weathered, hard, calcite filling voids, crystalline, iron staining fossiliferous below about 57.5 feet

Boring Terminated at 61.5 Feet

34.0

38.0

41.5

61.5

426+/-

422+/-

418.5+/-

398.5+/-

13590

14710

17700

Hammer Type: CME Automatic SPT Hammer Efficiency Correction (CE) = 1.55 (calibrated 3/8/2021)

Stratification lines are approximate. In-situ, the transition may be gradual.

Classification estimated from disturbed or core samples. Petrographic analysis may reveal other rock types.

T H

IS

B

O R

IN

G

L O

G I

S N

O T

V A

L

ID

I F

S E

P A

R A

T E

D F

R O

M O

R

IG

IN

A

L R

E P

O R

T

G E

O S

M A

R T

L O

G -N

O W

E

L

O C

K A

N D

D A

M

.G

P J

T E

R R

A C

O N

D

A T

A T

E M

P L

A T

E .G

0/

D E

P T

H

F t.)

W A

T E

R L

E V

E L

O B

S E

R V

A T

IO

N

S

F

IE

LD

T

E S

T R

E S

U L

T S

W A

T E

R C

O N

T E

N T

D R

Y U

N

IT

W E

IG

H

T pc f)LOCATION See Exploration Plan

Latitude: 39.6389° Longitude: -91.2447°

G R

A P

H

IC

L O

G

DEPTH ELEVATION (Ft.)

Approximate Surface Elev.: 460 (Ft.) +/-

Advancement Method:

Hollow Stem Auger to 10.5'; then mud-rotary to 41.5'; then cored to termination depth

Abandonment Method:

Boring backfilled with cement-bentonite grout upon completion.

Notes:

Project No.: D1205013

Drill Rig: 603 - CME 850XR

BORING LOG NO. BP-4

Stanley Consultants, Inc.CLIENT:

Minneapolis, MN

Driller: SZ

Boring Completed: 03-10-2021

OWNER: United States Army Corps of Engineers

PROJECT: Lock and Dam 22 Fish Passage

Elevation measured in the field using a level and rod

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

See Supporting Information for explanation of symbols and abbreviations.

CTH E / Riverview Drive Saverton, MO

SITE:

Boring Started: 03-10-2021

2640 12th St SW Cedar Rapids, IA

9.5' while drilling/sampling

WATER LEVEL OBSERVATIONS

R E

C O

V E

R Y

In

N

U N

C O

N F

IN

E

D C

O M

P R

E S

S

IV

E S

T R

E N

G T

H p si

P E

R C

E N

T F

IN

E

S

14610

S A

M P

L E

T Y

4-7-5

5-3-2 N=5

4-3-4 N=7

4-2-4 N=6

4-7-7 N=14

1-4-5 N=9

9.7

20.8

20.1

23.7

32.6

9" Concrete FILL - RIP RAP and LIMESTONE GRAVEL

FILL - LIMESTONE GRAVEL WITH FINES , brown

SILTY SAND (SM), fine to medium grained, black and brown, loose, unusual odor

POORLY GRADED SAND (SP), trace silt, fine to medium grained, brown and gray, medium dense

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

SILTY SAND (SM), trace gravel, fine to coarse grained, dark gray and brown, medium dense clay seam at about 29 feet

0.8

3.5

9.0

10.5

18.0

22.0

459.5+/-

456.5+/-

451+/-

449.5+/-

442+/-

438+/-

Hammer Type: CME Automatic SPT Hammer Efficiency Correction (CE) = 1.55 (calibrated 3/8/2021)

Stratification lines are approximate. In-situ, the transition may be gradual.

Classification estimated from disturbed or core samples. Petrographic analysis may reveal other rock types.

T H

IS

B

O R

IN

G

L O

G I

S N

O T

V A

L

ID

I F

S E

P A

R A

T E

D F

R O

M O

R

IG

IN

A

L R

E P

O R

T

G E

O S

M A

R T

L O

G -N

O W

E

L

O C

K A

N D

D A

M

.G

P J

T E

R R

A C

O N

D

A T

A T

E M

P L

A T

E .G

0/

D E

P T

H

F t.)

W A

T E

R L

E V

E L

O B

S E

R V

A T

IO

N

S

F

IE

LD

T

E S

T R

E S

U L

T S

W A

T E

R C

O N

T E

N T

D R

Y U

N

IT

W E

IG

H

T pc f)LOCATION See Exploration Plan

Latitude: 39.6389° Longitude: -91.2446°

G R

A P

H

IC

L O

G

DEPTH ELEVATION (Ft.)

Approximate Surface Elev.: 460 (Ft.) +/-

Advancement Method:

Hollow Stem Auger to 10.5'; then mud-rotary to 42'; then cored to termination depth

Abandonment Method:

Boring backfilled with cement-bentonite grout upon completion.

Notes:

Project No.: D1205013

Drill Rig: 603 - CME 850XR

BORING LOG NO. BP-5

Stanley Consultants, Inc.CLIENT:

Minneapolis, MN

Driller: SZ

Boring Completed: 03-10-2021

OWNER: United States Army Corps of Engineers

PROJECT: Lock and Dam 22 Fish Passage

Elevation measured in the field using a level and rod

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

See Supporting Information for explanation of symbols and abbreviations.

CTH E / Riverview Drive Saverton, MO

SITE:

Boring Started: 03-10-2021

2640 12th St SW Cedar Rapids, IA

9' while drilling/sampling

WATER LEVEL OBSERVATIONS

R E

C O

V E

R Y

In

N

U N

C O

N F

IN

E

D C

O M

P R

E S

S

IV

E S

T R

E N

G T

H p si

P E

R C

E N

T F

IN

E

S

S A

M P

L E

T Y

5-7-5

5-6-6 N=12

Rec. = 100%

RQD = 88%

Rec. = 100%

RQD = 85%

20.0

17.3

0.8

0.1

0.1

0.5

SILTY SAND (SM), trace gravel, fine to coarse grained, dark gray and brown, medium dense (continued)

POORLY GRADED SAND (SP), trace silt and gravel, fine to coarse grained, gray, medium dense

LIMESTONE, light gray and gray, very close to moderately close joints, very thin bedding, moderately weathered, hard, calcite filling voids, crystalline, iron staining fossiliferous below about 58 feet

Boring Terminated at 62 Feet

37.0

42.0

62.0

423+/-

418+/-

398+/-

15740

16900

13630

Hammer Type: CME Automatic SPT Hammer Efficiency Correction (CE) = 1.55 (calibrated 3/8/2021)

Stratification lines are approximate. In-situ, the transition may be gradual.

Classification estimated from disturbed or core samples. Petrographic analysis may reveal other rock types.

T H

IS

B

O R

IN

G

L O

G I

S N

O T

V A

L

ID

I F

S E

P A

R A

T E

D F

R O

M O

R

IG

IN

A

L R

E P

O R

T

G E

O S

M A

R T

L O

G -N

O W

E

L

O C

K A

N D

D A

M

.G

P J

T E

R R

A C

O N

D

A T

A T

E M

P L

A T

E .G

0/

D E

P T

H

F t.)

W A

T E

R L

E V

E L

O B

S E

R V

A T

IO

N

S

F

IE

LD

T

E S

T R

E S

U L

T S

W A

T E

R C

O N

T E

N T

D R

Y U

N

IT

W E

IG

H

T pc f)LOCATION See Exploration Plan

Latitude: 39.6389° Longitude: -91.2446°

G R

A P

H

IC

L O

G

DEPTH ELEVATION (Ft.)

Approximate Surface Elev.: 460 (Ft.) +/-

Advancement Method:

Hollow Stem Auger to 10.5'; then mud-rotary to 42'; then cored to termination depth

Abandonment Method:

Boring backfilled with cement-bentonite grout upon completion.

Notes:

Project No.: D1205013

Drill Rig: 603 - CME 850XR

BORING LOG NO. BP-5

Stanley Consultants, Inc.CLIENT:

Minneapolis, MN

Driller: SZ

Boring Completed: 03-10-2021

OWNER: United States Army Corps of Engineers

PROJECT: Lock and Dam 22 Fish Passage

Elevation measured in the field using a level and rod

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

See Supporting Information for explanation of symbols and abbreviations.

CTH E / Riverview Drive Saverton, MO

SITE:

Boring Started: 03-10-2021

2640 12th St SW Cedar Rapids, IA

9' while drilling/sampling

WATER LEVEL OBSERVATIONS

R E

C O

V E

R Y

In

N

U N

C O

N F

IN

E

D C

O M

P R

E S

S

IV

E S

T R

E N

G T

H p si

P E

R C

E N

T F

IN

E

S

10280

S A

M P

L E

T Y

4-4-4

4-4-3 N=7

4-5-6 N=11

5-6-6 N=12

5-4-6 N=10

5-5-4 N=9

14.1

15.8

19.8

20.9

21.4

18.0

22.8

18" Concrete

FILL - CEMENTED RIP RAP

FILL - SANDY LEAN CLAY WITH GRAVEL , gray and light gray POORLY GRADED SAND (SP), trace silt and gravel, fine to coarse grained, brown, medium dense clay seam at about 14 feet

POORLY GRADED SAND WITH SILT (SP-SM), fine to medium grained, brown and gray, medium dense wood from about 22.5 to 24 feet

POORLY GRADED SAND (SP), trace silt and gravel, fine to coarse grained, brown and gray, medium dense

1.5

3.0 3.5

18.0

24.0

458.5+/-

457+/- 456.5+/-

442+/-

436+/-

Hammer Type: CME Automatic SPT Hammer Efficiency Correction (CE) = 1.55 (calibrated 3/8/2021)

Stratification lines are approximate. In-situ, the transition may be gradual.

Classification estimated from disturbed or core samples. Petrographic analysis may reveal other rock types.

T H

IS

B

O R

IN

G

L O

G I

S N

O T

V A

L

ID

I F

S E

P A

R A

T E

D F

R O

M O

R

IG

IN

A

L R

E P

O R

T

G E

O S

M A

R T

L O

G -N

O W

E

L

O C

K A

N D

D A

M

.G

P J

T E

R R

A C

O N

D

A T

A T

E M

P L

A T

E .G

0/

D E

P T

H

F t.)

W A

T E

R L

E V

E L

O B

S E

R V

A T

IO

N

S

F

IE

LD

T

E S

T R

E S

U L

T S

W A

T E

R C

O N

T E

N T

D R

Y U

N

IT

W E

IG

H

T pc f)LOCATION See Exploration Plan

Latitude: 39.6389° Longitude: -91.2446°

G R

A P

H

IC

L O

G

DEPTH ELEVATION (Ft.)

Approximate Surface Elev.: 460 (Ft.) +/-

Advancement Method:

Hollow Stem Auger to 10.5'; then mud-rotary to 42'; then cored to termination depth

Abandonment Method:

Boring backfilled with cement-bentonite grout upon completion.

Notes:

Project No.: D1205013

Drill Rig: 603 - CME 850XR

BORING LOG NO. BP-6

Stanley Consultants, Inc.CLIENT:

Minneapolis, MN

Driller: SZ

Boring Completed: 03-10-2021

OWNER: United States Army Corps of Engineers

PROJECT: Lock and Dam 22 Fish Passage

Elevation measured in the field using a level and rod

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

See Supporting Information for explanation of symbols and abbreviations.

CTH E / Riverview Drive Saverton, MO

SITE:

Boring Started: 03-09-2021

2640 12th St SW Cedar Rapids, IA

10' while drilling/sampling

WATER LEVEL OBSERVATIONS

R E

C O

V E

R Y

In

N

U N

C O

N F

IN

E

D C

O M

P R

E S

S

IV

E S

T R

E N

G T

H p si

P E

R C

E N

T F

IN

E

S

S A

M P

L E

T Y

4-6-5 N=11

6-7-7 N=14

Rec. = 100%

RQD = 83%

Rec. = 100%

RQD = 79%

22.7

18.7

0.4

0.3

0.6

0.2

POORLY GRADED SAND (SP), trace silt and gravel, fine to coarse grained, brown and gray, medium dense (continued)

POORLY GRADED SAND (SP), trace silt, gravel, and shells, fine to coarse grained, gray, medium dense

LIMESTONE, light gray and gray, very close to moderately close joints, very thin bedding, moderately weathered, hard, calcite filling voids, crystalline, iron staining fossiliferous below about 58 feet

Boring Terminated at 62 Feet

38.0

42.0

62.0

422+/-

418+/-

398+/-

16100

16120

14810

Hammer Type: CME Automatic SPT Hammer Efficiency Correction (CE) = 1.55 (calibrated 3/8/2021)

Stratification lines are approximate. In-situ, the transition may be gradual.

Classification estimated from disturbed or core samples. Petrographic analysis may reveal other rock types.

T H

IS

B

O R

IN

G

L O

G I

S N

O T

V A

L

ID

I F

S E

P A

R A

T E

D F

R O

M O

R

IG

IN

A

L R

E P

O R

T

G E

O S

M A

R T

L O

G -N

O W

E

L

O C

K A

N D

D A

M

.G

P J

T E

R R

A C

O N

D

A T

A T

E M

P L

A T

E .G

0/

D E

P T

H

F t.)

W A

T E

R L

E V

E L

O B

S E

R V

A T

IO

N

S

F

IE

LD

T

E S

T R

E S

U L

T S

W A

T E

R C

O N

T E

N T

D R

Y U

N

IT

W E

IG

H

T pc f)LOCATION See Exploration Plan

Latitude: 39.6389° Longitude: -91.2446°

G R

A P

H

IC

L O

G

DEPTH ELEVATION (Ft.)

Approximate Surface Elev.: 460 (Ft.) +/-

Advancement Method:

Hollow Stem Auger to 10.5'; then mud-rotary to 42'; then cored to termination depth

Abandonment Method:

Boring backfilled with cement-bentonite grout upon completion.

Notes:

Project No.: D1205013

Drill Rig: 603 - CME 850XR

BORING LOG NO. BP-6

Stanley Consultants, Inc.CLIENT:

Minneapolis, MN

Driller: SZ

Boring Completed: 03-10-2021

OWNER: United States Army Corps of Engineers

PROJECT: Lock and Dam 22 Fish Passage

Elevation measured in the field using a level and rod

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

See Supporting Information for explanation of symbols and abbreviations.

CTH E / Riverview Drive Saverton, MO

SITE:

Boring Started: 03-09-2021

2640 12th St SW Cedar Rapids, IA

10' while drilling/sampling

WATER LEVEL OBSERVATIONS

R E

C O

V E

R Y

In

N

U N

C O

N F

IN

E

D C

O M

P R

E S

S

IV

E S

T R

E N

G T

H p si

P E

R C

E N

T F

IN

E

S

13240

S A

M P

L E

T Y

1-1-1 N=2

3-3-4 N=7

7-11-10 N=21

5-7-7 N=14

4-5-3 N=8

29.6

23.9

19.6

21.1

19.0

7" Concrete FILL - , 11" Limestone Gravel

FILL - CEMENTED RIP RAP

CALCITE BOULDER

SILTY SAND (SM), trace gravel and shells, fine to coarse grained, gray, dark gray, and tan, very loose

POORLY GRADED SAND (SP), trace silt, fine to medium grained, brown and gray, medium dense to dense

POORLY GRADED SAND (SP), trace silt and gravel, fine to coarse grained, brown and gray, medium dense

0.6

1.5

7.0

8.5

13.0

28.0

459.5+/-

458.5+/-

453+/-

451.5+/-

447+/-

432+/-

Hammer Type: CME Automatic SPT Hammer Efficiency Correction (CE) = 1.55 (calibrated 3/8/2021)

Stratification lines are approximate. In-situ, the transition may be gradual.

Classification estimated from disturbed or core samples. Petrographic analysis may reveal other rock types.

T H

IS

B

O R

IN

G

L O

G I

S N

O T

V A

L

ID

I F

S E

P A

R A

T E

D F

R O

M O

R

IG

IN

A

L R

E P

O R

T

G E

O S

M A

R T

L O

G -N

O W

E

L

O C

K A

N D

D A

M

.G

P J

T E

R R

A C

O N

D

A T

A T

E M

P L

A T

E .G

0/

D E

P T

H

F t.)

W A

T E

R L

E V

E L

O B

S E

R V

A T

IO

N

S

F

IE

LD

T

E S

T R

E S

U L

T S

W A

T E

R C

O N

T E

N T

D R

Y U

N

IT

W E

IG

H

T pc f)LOCATION See Exploration Plan

Latitude: 39.6389° Longitude: -91.2444°

G R

A P

H

IC

L O

G

DEPTH ELEVATION (Ft.)

Approximate Surface Elev.: 460 (Ft.) +/-

Advancement Method:

Hollow Stem Auger to 10.5'; then mud-rotary to 41.5'; then cored to termination depth

Abandonment Method:

Boring backfilled with cement-bentonite grout upon completion.

Notes:

Project No.: D1205013

Drill Rig: 603 - CME 850XR

BORING LOG NO. BP-7

Stanley Consultants, Inc.CLIENT:

Minneapolis, MN

Driller: SZ

Boring Completed: 03-09-2021

OWNER: United States Army Corps of Engineers

PROJECT: Lock and Dam 22 Fish Passage

Elevation measured in the field using a level and rod

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

See Supporting Information for explanation of symbols and abbreviations.

CTH E / Riverview Drive Saverton, MO

SITE:

Boring Started: 03-09-2021

2640 12th St SW Cedar Rapids, IA

No water encountered prior to mud-rotary drilling

WATER LEVEL OBSERVATIONS

R E

C O

V E

R Y

In

N

U N

C O

N F

IN

E

D C

O M

P R

E S

S

IV

E S

T R

E N

G T

H p si

P E

R C

E N

T F

IN

E

S

S A

M P

L E

T Y

3-4-4

6-7-7 N=14

Rec. = 100%

RQD = 0%

Rec. = 100%

RQD = 88%

Rec. = 100%

RQD = 90%

24.5

21.7

0.5

0.3

0.7

0.5

POORLY GRADED SAND (SP), trace silt and gravel, fine to coarse grained, brown and gray, medium dense (continued)

LIMESTONE, light gray and gray, very close to moderately close joints, very thin bedding, moderately weathered, hard, calcite filling voids, crystalline, iron staining

Boring Terminated at 61.5 Feet

41.5

61.5

418.5+/-

398.5+/-

22 4

Hammer Type: CME Automatic SPT Hammer Efficiency Correction (CE) = 1.55 (calibrated 3/8/2021)

Stratification lines are approximate. In-situ, the transition may be gradual.

Classification estimated from disturbed or core samples. Petrographic analysis may reveal other rock types.

T H

IS

B

O R

IN

G

L O

G I

S N

O T

V A

L

ID

I F

S E

P A

R A

T E

D F

R O

M O

R

IG

IN

A

L R

E P

O R

T

G E

O S

M A

R T

L O

G -N

O W

E

L

O C

K A

N D

D A

M

.G

P J

T E

R R

A C

O N

D

A T

A T

E M

P L

A T

E .G

0/

D E

P T

H

F t.)

W A

T E

R L

E V

E L

O B

S E

R V

A T

IO

N

S

F

IE

LD

T

E S

T R

E S

U L

T S

W A

T E

R C

O N

T E

N T

D R

Y U

N

IT

W E

IG

H

T pc f)LOCATION See Exploration Plan

Latitude: 39.6389° Longitude: -91.2444°

G R

A P

H

IC

L O

G

DEPTH ELEVATION (Ft.)

Approximate Surface Elev.: 460 (Ft.) +/-

Advancement Method:

Hollow Stem Auger to 10.5'; then mud-rotary to 41.5'; then cored to termination depth

Abandonment Method:

Boring backfilled with cement-bentonite grout upon completion.

Notes:

Project No.: D1205013

Drill Rig: 603 - CME 850XR

BORING LOG NO. BP-7

Stanley Consultants, Inc.CLIENT:

Minneapolis, MN

Driller: SZ

Boring Completed: 03-09-2021

OWNER: United States Army Corps of Engineers

PROJECT: Lock and Dam 22 Fish Passage

Elevation measured in the field using a level and rod

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

See Supporting Information for explanation of symbols and abbreviations.

CTH E / Riverview Drive Saverton, MO

SITE:

Boring Started: 03-09-2021

2640 12th St SW Cedar Rapids, IA

No water encountered prior to mud-rotary drilling

WATER LEVEL OBSERVATIONS

R E

C O

V E

R Y

In

N

U N

C O

N F

IN

E

D C

O M

P R

E S

S

IV

E S

T R

E N

G T

H p si

P E

R C

E N

T F

IN

E

S

10590

13470

15040

15760

S A

M P

L E

T Y

10-8-7 N=15

3-6-7 N=13

8-8-8 N=16

7-9-9 N=18

5-7-7 N=14

5-5-6 N=11

16.4

14.1

17.4

19.6

22.7

19.0

7" Concrete

FILL - CEMENTED RIP RAP

SANDY LEAN CLAY (CL), brown

SILTY SAND (SM), fine to medium grained, brown, medium dense

POORLY GRADED SAND (SP), trace silt, fine to coarse grained, brown, medium dense

POORLY GRADED SAND (SP), trace silt and gravel, fine to coarse grained, gray and brown, medium dense

POORLY GRADED SAND (SP), trace silt, fine to medium grained, gray and brown, medium dense

0.6

3.0

4.0

8.0

13.0

28.0

459.5+/-

457+/-

456+/-

452+/-

447+/-

432+/-

Hammer Type: CME Automatic SPT Hammer Efficiency Correction (CE) = 1.55 (calibrated 3/8/2021)

Stratification lines are approximate. In-situ, the transition may be gradual.

Classification estimated from disturbed or core samples. Petrographic analysis may reveal other rock types.

T H

IS

B

O R

IN

G

L O

G I

S N

O T

V A

L

ID

I F

S E

P A

R A

T E

D F

R O

M O

R

IG

IN

A

L R

E P

O R

T

G E

O S

M A

R T

L O

G -N

O W

E

L

O C

K A

N D

D A

M

.G

P J

T E

R R

A C

O N

D

A T

A T

E M

P L

A T

E .G

0/

D E

P T

H

F t.)

W A

T E

R L

E V

E L

O B

S E

R V

A T

IO

N

S

F

IE

LD

T

E S

T R

E S

U L

T S

W A

T E

R C

O N

T E

N T

D R

Y U

N

IT

W E

IG

H

T pc f)LOCATION See Exploration Plan

Latitude: 39.6390° Longitude: -91.2444°

G R

A P

H

IC

L O

G

DEPTH ELEVATION (Ft.)

Approximate Surface Elev.: 460 (Ft.) +/-

Advancement Method:

Power Auger to 10'; then mud-rotary to 42.5'; then cored to termination depth

Abandonment Method:

Boring backfilled with cement-bentonite grout upon completion.

Notes:

Project No.: D1205013

Drill Rig: 603 - CME 850XR

BORING LOG NO. BP-8

Stanley Consultants, Inc.CLIENT:

Minneapolis, MN

Driller: SZ

Boring Completed: 03-09-2021

OWNER: United States Army Corps of Engineers

PROJECT: Lock and Dam 22 Fish Passage

Elevation measured in the field using a level and rod

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

See Supporting Information for explanation of symbols and abbreviations.

CTH E / Riverview Drive Saverton, MO

SITE:

Boring Started: 03-09-2021

2640 12th St SW Cedar Rapids, IA

9' while drilling/sampling

WATER LEVEL OBSERVATIONS

R E

C O

V E

R Y

In

N

U N

C O

N F

IN

E

D C

O M

P R

E S

S

IV

E S

T R

E N

G T

H p si

P E

R C

E N

T F

IN

E

S

S A

M P

L E

T Y

5-5-6

6-8-7 N=15

Rec. = 100%

RQD = 85%

Rec. = 100%

RQD = 93%

23.4

13.3

0.3

0.2

0.5

0.7

POORLY GRADED SAND (SP), trace silt, fine to medium grained, gray and brown, medium dense (continued)

POORLY GRADED SAND (SP), trace silt, gravel, and shells, fine to coarse grained, gray and dark gray, medium dense

LIMESTONE, light gray and gray, very close to moderately close joints, very thin bedding, moderately weathered, hard, calcite filling voids, crystalline, iron staining fossiliferous below about 58.5 feet

Boring Terminated at 62.5 Feet

37.0

42.5

62.5

423+/-

417.5+/-

397.5+/-

14820

13940

17210

Hammer Type: CME Automatic SPT Hammer Efficiency Correction (CE) = 1.55 (calibrated 3/8/2021)

Stratification lines are approximate. In-situ, the transition may be gradual.

Classification estimated from disturbed or core samples. Petrographic analysis may reveal other rock types.

T H

IS

B

O R

IN

G

L O

G I

S N

O T

V A

L

ID

I F

S E

P A

R A

T E

D F

R O

M O

R

IG

IN

A

L R

E P

O R

T

G E

O S

M A

R T

L O

G -N

O W

E

L

O C

K A

N D

D A

M

.G

P J

T E

R R

A C

O N

D

A T

A T

E M

P L

A T

E .G

0/

D E

P T

H

F t.)

W A

T E

R L

E V

E L

O B

S E

R V

A T

IO

N

S

F

IE

LD

T

E S

T R

E S

U L

T S

W A

T E

R C

O N

T E

N T

D R

Y U

N

IT

W E

IG

H

T pc f)LOCATION See Exploration Plan

Latitude: 39.6390° Longitude: -91.2444°

G R

A P

H

IC

L O

G

DEPTH ELEVATION (Ft.)

Approximate Surface Elev.: 460 (Ft.) +/-

Advancement Method:

Power Auger to 10'; then mud-rotary to 42.5'; then cored to termination depth

Abandonment Method:

Boring backfilled with cement-bentonite grout upon completion.

Notes:

Project No.: D1205013

Drill Rig: 603 - CME 850XR

BORING LOG NO. BP-8

Stanley Consultants, Inc.CLIENT:

Minneapolis, MN

Driller: SZ

Boring Completed: 03-09-2021

OWNER: United States Army Corps of Engineers

PROJECT: Lock and Dam 22 Fish Passage

Elevation measured in the field using a level and rod

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

See Supporting Information for explanation of symbols and abbreviations.

CTH E / Riverview Drive Saverton, MO

SITE:

Boring Started: 03-09-2021

2640 12th St SW Cedar Rapids, IA

9' while drilling/sampling

WATER LEVEL OBSERVATIONS

R E

C O

V E

R Y

In

N

U N

C O

N F

IN

E

D C

O M

P R

E S

S

IV

E S

T R

E N

G T

H p si

P E

R C

E N

T F

IN

E

S

16050

S A

M P

L E

T Y

2-5-13 N=18

1-2-1 N=3

2-3-12 N=15

12-14-14 N=28

4-5-7 N=12

4-4-5 N=9

22.2

52.9

16.9

14.8

17.6

17.2

7" Concrete FILL - , 10" Limestone Gravel

FILL - RIP RAP WITH CLAY

FILL - CEMENTED RIP RAP

FILL - GRAVELLY LEAN CLAY , trace sand, brown

SILTY SAND (SM), trace gravel and wood, fine to coarse grained, gray, brown, and dark brown, medium dense

POORLY GRADED SAND (SP), trace silt and gravel, fine to coarse grained, brown, dense

POORLY GRADED SAND (SP), trace silt and gravel, fine to coarse grained, dark gray and brown, medium dense gray and brown below about 29 feet

0.6

1.4

5.5

6.5

10.0

18.0

22.0

459.5+/-

458.5+/-

454.5+/-

453.5+/-

450+/-

442+/-

438+/-

Hammer Type: CME Automatic SPT Hammer Efficiency Correction (CE) = 1.55 (calibrated 3/8/2021)

Stratification lines are approximate. In-situ, the transition may be gradual.

Classification estimated from disturbed or core samples. Petrographic analysis may reveal other rock types.

T H

IS

B

O R

IN

G

L O

G I

S N

O T

V A

L

ID

I F

S E

P A

R A

T E

D F

R O

M O

R

IG

IN

A

L R

E P

O R

T

G E

O S

M A

R T

L O

G -N

O W

E

L

O C

K A

N D

D A

M

.G

P J

T E

R R

A C

O N

D

A T

A T

E M

P L

A T

E .G

0/

D E

P T

H

F t.)

W A

T E

R L

E V

E L

O B

S E

R V

A T

IO

N

S

F

IE

LD

T

E S

T R

E S

U L

T S

W A

T E

R C

O N

T E

N T

D R

Y U

N

IT

W E

IG

H

T pc f)LOCATION See Exploration Plan

Latitude: 39.6390° Longitude: -91.2443°

G R

A P

H

IC

L O

G

DEPTH ELEVATION (Ft.)

Approximate Surface Elev.: 460 (Ft.) +/-

Advancement Method:

Hollow Stem Auger to 13.5'; then mud-rotary to 42.5'; then cored to termination depth

Abandonment Method:

Boring backfilled with cement-bentonite grout upon completion.

Notes:

Project No.: D1205013

Drill Rig: 603 - CME 850XR

BORING LOG NO. BP-9

Stanley Consultants, Inc.CLIENT:

Minneapolis, MN

Driller: SZ

Boring Completed: 03-09-2021

OWNER: United States Army Corps of Engineers

PROJECT: Lock and Dam 22 Fish Passage

Elevation measured in the field using a level and rod

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

See Supporting Information for explanation of symbols and abbreviations.

CTH E / Riverview Drive Saverton, MO

SITE:

Boring Started: 03-08-2021

2640 12th St SW Cedar Rapids, IA

10' while drilling/sampling

WATER LEVEL OBSERVATIONS

R E

C O

V E

R Y

In

N

U N

C O

N F

IN

E

D C

O M

P R

E S

S

IV

E S

T R

E N

G T

H p si

P E

R C

E N

T F

IN

E

S

S A

M P

L E

T Y

6-10-6 N=16

5-10-11 N=21

SPT = 50/0"

Rec. = 100%

RQD = 64%

Rec. = 100%

RQD = 73%

23.0

15.5

0.2

0.5

0.3

0.2

POORLY GRADED SAND (SP), trace silt and gravel, fine to coarse grained, dark gray and brown, medium dense (continued)

POORLY GRADED SAND (SP), trace silt, gravel, and shells, fine to coarse grained, gray, dark gray, and brown, dense

LIMESTONE, light gray and gray, very close to moderately close joints, very thin bedding, moderately weathered, hard, calcite filling voids, crystalline, iron staining fossiliferous below about 58.5 feet

Boring Terminated at 62.5 Feet

38.0

42.0

62.5

422+/-

418+/-

397.5+/-

14850

12340

18540

Hammer Type: CME Automatic SPT Hammer Efficiency Correction (CE) = 1.55 (calibrated 3/8/2021)

Stratification lines are approximate. In-situ, the transition may be gradual.

Classification estimated from disturbed or core samples. Petrographic analysis may reveal other rock types.

T H

IS

B

O R

IN

G

L O

G I

S N

O T

V A

L

ID

I F

S E

P A

R A

T E

D F

R O

M O

R

IG

IN

A

L R

E P

O R

T

G E

O S

M A

R T

L O

G -N

O W

E

L

O C

K A

N D

D A

M

.G

P J

T E

R R

A C

O N

D

A T

A T

E M

P L

A T

E .G

0/

D E

P T

H

F t.)

W A

T E

R L

E V

E L

O B

S E

R V

A T

IO

N

S

F

IE

LD

T

E S

T R

E S

U L

T S

W A

T E

R C

O N

T E

N T

D R

Y U

N

IT

W E

IG

H

T pc f)LOCATION See Exploration Plan

Latitude: 39.6390° Longitude: -91.2443°

G R

A P

H

IC

L O

G

DEPTH ELEVATION (Ft.)

Approximate Surface Elev.: 460 (Ft.) +/-

Advancement Method:

Hollow Stem Auger to 13.5'; then mud-rotary to 42.5'; then cored to termination depth

Abandonment Method:

Boring backfilled with cement-bentonite grout upon completion.

Notes:

Project No.: D1205013

Drill Rig: 603 - CME 850XR

BORING LOG NO. BP-9

Stanley Consultants, Inc.CLIENT:

Minneapolis, MN

Driller: SZ

Boring Completed: 03-09-2021

OWNER: United States Army Corps of Engineers

PROJECT: Lock and Dam 22 Fish Passage

Elevation measured in the field using a level and rod

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

See Supporting Information for explanation of symbols and abbreviations.

CTH E / Riverview Drive Saverton, MO

SITE:

Boring Started: 03-08-2021

2640 12th St SW Cedar Rapids, IA

10' while drilling/sampling

WATER LEVEL OBSERVATIONS

R E

C O

V E

R Y

In

N

U N

C O

N F

IN

E

D C

O M

P R

E S

S

IV

E S

T R

E N

G T

H p si

P E

R C

E N

T F

IN

E

S

11520

S A

M P

L E

T Y

8-4-3 N=7

2-1-2 N=3

2-2-3 N=5

3-4-5 N=9

19.8

23.3

WATER

POORLY GRADED SAND WITH SILT (SP-SM), trace gravel, fine to coarse grained, brown, medium dense loose below about 17 feet

POORLY GRADED SAND (SP), trace silt, fine to medium grained, brown, loose medium dense below about 27 feet

POORLY GRADED SAND WITH GRAVEL (SP), trace silt, fine to coarse grained, brown, medium dense

8.5

22.0

30.0

450.5+/-

437+/-

429+/-

Hammer Type: CME Automatic SPT Hammer Efficiency Correction (CE) = 1.55 (calibrated 3/8/2021)

Stratification lines are approximate. In-situ, the transition may be gradual.

Classification estimated from disturbed or core samples. Petrographic analysis may reveal other rock types.

T H

IS

B

O R

IN

G

L O

G I

S N

O T

V A

L

ID

I F

S E

P A

R A

T E

D F

R O

M O

R

IG

IN

A

L R

E P

O R

T

G E

O S

M A

R T

L O

G -N

O W

E

L

O C

K A

N D

D A

M

.G

P J

T E

R R

A C

O N

D

A T

A T

E M

P L

A T

E .G

0/

D E

P T

H

F t.)

W A

T E

R L

E V

E L

O B

S E

R V

A T

IO

N

S

F

IE

LD

T

E S

T R

E S

U L

T S

W A

T E

R C

O N

T E

N T

D R

Y U

N

IT

W E

IG

H

T pc f)LOCATION See Exploration Plan

Latitude: 39.6387° Longitude: -91.2455°

G R

A P

H

IC

L O

G

DEPTH ELEVATION (Ft.)

Approximate Surface Elev.: 459 (Ft.) +/-

Advancement Method:

Mud-rotary to 41'; then cored to termination depth

Abandonment Method:

Boring backfilled with cement-bentonite grout upon completion.

Notes:

Project No.: D1205013

Drill Rig: 603 - CME 850XR

BORING LOG NO. CD-1

Stanley Consultants, Inc.CLIENT:

Minneapolis, MN

Driller: SZ

Boring Completed: 03-13-2021

OWNER: United States Army Corps of Engineers

PROJECT: Lock and Dam 22 Fish Passage

Elevation measured in the field using a level and rod

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

See Supporting Information for explanation of symbols and abbreviations.

CTH E / Riverview Drive Saverton, MO

SITE:

Boring Started: 03-13-2021

2640 12th St SW Cedar Rapids, IA

Upstream river stage

WATER LEVEL OBSERVATIONS

R E

C O

V E

R Y

In

N

U N

C O

N F

IN

E

D C

O M

P R

E S

S

IV

E S

T R

E N

G T

H p si

P E

R C

E N

T F

IN

E

S

S A

M P

L E

T Y

3-3-4

3-5-6 N=11

Rec. = 99%

RQD = 78%

Rec. = 100%

RQD = 83%

19.4

0.4

0.6

1.5

0.6

POORLY GRADED SAND WITH GRAVEL (SP), trace silt, fine to coarse grained, brown, medium dense (continued)

POORLY GRADED SAND (SP), trace silt, fine to medium grained, brown, medium dense

LIMESTONE, light gray and gray, very close to moderately close joints, very thin bedding, moderately weathered, hard, calcite filling voids, crystalline, iron staining fossiliferous below about 58 feet

Boring Terminated at 61 Feet

35.0

41.0

61.0

424+/-

418+/-

398+/-

10940

15690

12440

Hammer Type: CME Automatic SPT Hammer Efficiency Correction (CE) = 1.55 (calibrated 3/8/2021)

Stratification lines are approximate. In-situ, the transition may be gradual.

Classification estimated from disturbed or core samples. Petrographic analysis may reveal other rock types.

T H

IS

B

O R

IN

G

L O

G I

S N

O T

V A

L

ID

I F

S E

P A

R A

T E

D F

R O

M O

R

IG

IN

A

L R

E P

O R

T

G E

O S

M A

R T

L O

G -N

O W

E

L

O C

K A

N D

D A

M

.G

P J

T E

R R

A C

O N

D

A T

A T

E M

P L

A T

E .G

0/

D E

P T

H

F t.)

W A

T E

R L

E V

E L

O B

S E

R V

A T

IO

N

S

F

IE

LD

T

E S

T R

E S

U L

T S

W A

T E

R C

O N

T E

N T

D R

Y U

N

IT

W E

IG

H

T pc f)LOCATION See Exploration Plan

Latitude: 39.6387° Longitude: -91.2455°

G R

A P

H

IC

L O

G

DEPTH ELEVATION (Ft.)

Approximate Surface Elev.: 459 (Ft.) +/-

Advancement Method:

Mud-rotary to 41'; then cored to termination depth

Abandonment Method:

Boring backfilled with cement-bentonite grout upon completion.

Notes:

Project No.: D1205013

Drill Rig: 603 - CME 850XR

BORING LOG NO. CD-1

Stanley Consultants, Inc.CLIENT:

Minneapolis, MN

Driller: SZ

Boring Completed: 03-13-2021

OWNER: United States Army Corps of Engineers

PROJECT: Lock and Dam 22 Fish Passage

Elevation measured in the field using a level and rod

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

See Supporting Information for explanation of symbols and abbreviations.

CTH E / Riverview Drive Saverton, MO

SITE:

Boring Started: 03-13-2021

2640 12th St SW Cedar Rapids, IA

Upstream river stage

WATER LEVEL OBSERVATIONS

R E

C O

V E

R Y

In

N

U N

C O

N F

IN

E

D C

O M

P R

E S

S

IV

E S

T R

E N

G T

H p si

P E

R C

E N

T F

IN

E

S

S A

M P

L E

T Y

P E

Lab report for compressive strength test at 43 feet indicates "failure initiation at mineral filled void" Result may not be reflective of overall rock strength.

~Added by Jason Jacks, Stanley Consultants.

2-3-3

1-1-3 N=4

1-3-3 N=6

17.0

30.2

WATER

POORLY GRADED SAND WITH SILT (SP-SM), trace organics, fine to medium grained, dark brown and brown, loose

SILTY SAND (SM), fine grained, gray and brown, loose

POORLY GRADED SAND (SP), trace silt, fine to medium grained, gray and brown, loose

12.0

21.0

27.0

447+/-

438+/-

432+/-

Hammer Type: CME Automatic SPT Hammer Efficiency Correction (CE) = 1.55 (calibrated 3/8/2021)

Stratification lines are approximate. In-situ, the transition may be gradual.

Classification estimated from disturbed or core samples. Petrographic analysis may reveal other rock types.

T H

IS

B

O R

IN

G

L O

G I

S N

O T

V A

L

ID

I F

S E

P A

R A

T E

D F

R O

M O

R

IG

IN

A

L R

E P

O R

T

G E

O S

M A

R T

L O

G -N

O W

E

L

O C

K A

N D

D A

M

.G

P J

T E

R R

A C

O N

D

A T

A T

E M

P L

A T

E .G

0/

D E

P T

H

F t.)

W A

T E

R L

E V

E L

O B

S E

R V

A T

IO

N

S

F

IE

LD

T

E S

T R

E S

U L

T S

W A

T E

R C

O N

T E

N T

D R

Y U

N

IT

W E

IG

H

T pc f)LOCATION See Exploration Plan

Latitude: 39.6393° Longitude: -91.2449°

G R

A P

H

IC

L O

G

DEPTH ELEVATION (Ft.)

Approximate Surface Elev.: 459 (Ft.) +/-

Advancement Method:

Mud-rotary to 43'; then cored to termination depth

Abandonment Method:

Boring backfilled with cement-bentonite grout upon completion.

Notes:

Project No.: D1205013

Drill Rig: 603 - CME 850XR

BORING LOG NO. CD-2

Stanley Consultants, Inc.CLIENT:

Minneapolis, MN

Driller: SZ

Boring Completed: 03-13-2021

OWNER: United States Army Corps of Engineers

PROJECT: Lock and Dam 22 Fish Passage

Elevation measured in the field using a level and rod

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

See Supporting Information for explanation of symbols and abbreviations.

CTH E / Riverview Drive Saverton, MO

SITE:

Boring Started: 03-13-2021

2640 12th St SW Cedar Rapids, IA

Upstream river stage

WATER LEVEL OBSERVATIONS

R E

C O

V E

R Y

In

N

U N

C O

N F

IN

E

D C

O M

P R

E S

S

IV

E S

T R

E N

G T

H p si

P E

R C

E N

T F

IN

E

S

S A

M P

L E

T Y

2-2-3 N=5

5-6-6 N=12

SPT = 6-50/4"

Rec. = 98%

RQD = 95%

Rec. = 100%

RQD = 81%

20.9

18.7

19.7

0.7

0.4

0.3

0.2

POORLY GRADED SAND (SP), trace silt, fine to medium grained, gray and brown, loose (continued)

POORLY GRADED SAND (SP), trace silt and gravel, fine to coarse grained, gray and brown, medium dense

POORLY GRADED SAND WITH SILT (SP-SM), trace gravel, fine to coarse grained, brown and gray, medium dense

LIMESTONE, light gray and gray, very close to moderately close joints, very thin bedding, moderately weathered, hard, calcite filling voids, crystalline, iron staining fossiliferous below about 60.5 feet

Boring Terminated at 63 Feet

35.0

40.0

42.8

63.0

424+/-

419+/-

416+/-

396+/-

10200

12320

17750

Hammer Type: CME Automatic SPT Hammer Efficiency Correction (CE) = 1.55 (calibrated 3/8/2021)

Stratification lines are approximate. In-situ, the transition may be gradual.

Classification estimated from disturbed or core samples. Petrographic analysis may reveal other rock types.

T H

IS

B

O R

IN

G

L O

G I

S N

O T

V A

L

ID

I F

S E

P A

R A

T E

D F

R O

M O

R

IG

IN

A

L R

E P

O R

T

G E

O S

M A

R T

L O

G -N

O W

E

L

O C

K A

N D

D A

M

.G

P J

T E

R R

A C

O N

D

A T

A T

E M

P L

A T

E .G

0/

D E

P T

H

F t.)

W A

T E

R L

E V

E L

O B

S E

R V

A T

IO

N

S

F

IE

LD

T

E S

T R

E S

U L

T S

W A

T E

R C

O N

T E

N T

D R

Y U

N

IT

W E

IG

H

T pc f)LOCATION See Exploration Plan

Latitude: 39.6393° Longitude: -91.2449°

G R

A P

H

IC

L O

G

DEPTH ELEVATION (Ft.)

Approximate Surface Elev.: 459 (Ft.) +/-

Advancement Method:

Mud-rotary to 43'; then cored to termination depth

Abandonment Method:

Boring backfilled with cement-bentonite grout upon completion.

Notes:

Project No.: D1205013

Drill Rig: 603 - CME 850XR

BORING LOG NO. CD-2

Stanley Consultants, Inc.CLIENT:

Minneapolis, MN

Driller: SZ

Boring Completed: 03-13-2021

OWNER: United States Army Corps of Engineers

PROJECT: Lock and Dam 22 Fish Passage

Elevation measured in the field using a level and rod

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

See Supporting Information for explanation of symbols and abbreviations.

CTH E / Riverview Drive Saverton, MO

SITE:

Boring Started: 03-13-2021

2640 12th St SW Cedar Rapids, IA

Upstream river stage

WATER LEVEL OBSERVATIONS

R E

C O

V E

R Y

In

N

U N

C O

N F

IN

E

D C

O M

P R

E S

S

IV

E S

T R

E N

G T

H p si

P E

R C

E N

T F

IN

E

S

14600

S A

M P

L E

T Y

2-3-3

4-4-4 N=8

4-3-3 N=6

4-4-6 N=10

18.1

21.5

WATER

POORLY GRADED SAND WITH SILT (SP-SM), trace gravel, shells, and organics, fine to coarse grained, dark brown, brown, and gray, loose medium dense below about 17 feet

POORLY GRADED SAND (SP), trace silt, gravel, and wood, fine to coarse grained, gray and brown, loose medium dense below about 27 feet

POORLY GRADED SAND (SP), trace silt, fine to medium grained, gray and light gray, medium dense

9.5

21.0

30.0

449.5+/-

438+/-

429+/-

Hammer Type: CME Automatic SPT Hammer Efficiency Correction (CE) = 1.55 (calibrated 3/8/2021)

Stratification lines are approximate. In-situ, the transition may be gradual.

Classification estimated from disturbed or core samples. Petrographic analysis may reveal other rock types.

T H

IS

B

O R

IN

G

L O

G I

S N

O T

V A

L

ID

I F

S E

P A

R A

T E

D F

R O

M O

R

IG

IN

A

L R

E P

O R

T

G E

O S

M A

R T

L O

G -N

O W

E

L

O C

K A

N D

D A

M

.G

P J

T E

R R

A C

O N

D

A T

A T

E M

P L

A T

E .G

0/

D E

P T

H

F t.)

W A

T E

R L

E V

E L

O B

S E

R V

A T

IO

N

S

F

IE

LD

T

E S

T R

E S

U L

T S

W A

T E

R C

O N

T E

N T

D R

Y U

N

IT

W E

IG

H

T pc f)LOCATION See Exploration Plan

Latitude: 39.6392° Longitude: -91.2442°

G R

A P

H

IC

L O

G

DEPTH ELEVATION (Ft.)

Approximate Surface Elev.: 459 (Ft.) +/-

Advancement Method:

Mud-rotary to 42.5'; then cored to termination depth

Abandonment Method:

Boring backfilled with cement-bentonite grout upon completion.

Notes:

Project No.: D1205013

Drill Rig: 603 - CME 850XR

BORING LOG NO. CD-3

Stanley Consultants, Inc.CLIENT:

Minneapolis, MN

Driller: SZ

Boring Completed: 03-13-2021

OWNER: United States Army Corps of Engineers

PROJECT: Lock and Dam 22 Fish Passage

Elevation measured in the field using a level and rod

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

See Supporting Information for explanation of symbols and abbreviations.

CTH E / Riverview Drive Saverton, MO

SITE:

Boring Started: 03-13-2021

2640 12th St SW Cedar Rapids, IA

Upstream river stage

WATER LEVEL OBSERVATIONS

R E

C O

V E

R Y

In

N

U N

C O

N F

IN

E

D C

O M

P R

E S

S

IV

E S

T R

E N

G T

H p si

P E

R C

E N

T F

IN

E

S

S A

M P

L E

T Y

6-8-9 N=17

10-11-6 N=17

SPT = 50/4"

Rec. = 100%

RQD = 82%

Rec. = 100%

RQD = 84%

20.6

10.7

17.1

0.3

0.5

0.5

0.3

POORLY GRADED SAND (SP), trace silt, fine to medium grained, gray and light gray, medium dense (continued)

POORLY GRADED SAND WITH GRAVEL (SP), trace silt, fine to coarse grained, gray, dark gray, and brown, medium dense

LIMESTONE, light gray and gray, very close to moderately close joints, very thin bedding, moderately weathered, hard, calcite filling voids, crystalline, iron staining fossiliferous below about 60.5 feet

Boring Terminated at 62.5 Feet

36.0

42.3

62.5

423+/-

416.5+/-

396.5+/-

Hammer Type: CME Automatic SPT Hammer Efficiency Correction (CE) = 1.55 (calibrated 3/8/2021)

Stratification lines are approximate. In-situ, the transition may be gradual.

Classification estimated from disturbed or core samples. Petrographic analysis may reveal other rock types.

T H

IS

B

O R

IN

G

L O

G I

S N

O T

V A

L

ID

I F

S E

P A

R A

T E

D F

R O

M O

R

IG

IN

A

L R

E P

O R

T

G E

O S

M A

R T

L O

G -N

O W

E

L

O C

K A

N D

D A

M

.G

P J

T E

R R

A C

O N

D

A T

A T

E…