Draft_00_00_02A_-_Geology_Drawings_04032026_1.pdf

PDF 17 MB Posted Jun 3, 2026

Attached to: NGWSP Turnout Buildings
Solicitation number: 140R4026B0002
Issued by: Department of the Interior Bureau of Reclamation

About this file

Written by GovTribe AI · Jun 3, 2026

This document is a geotechnical exploration report for the Navajo Gallup Water Supply Project, specifically documenting surface geology and subsurface conditions at multiple turnout building sites along the San Juan Lateral pipeline.

The report presents twelve test pit investigations (TPTB-25-1 through TPTB-25-12) conducted at various turnout locations including Sanostee, Newcomb, Naschitti, BBN9 (Coyote Canyon), and Rock Springs, plus Window Rock. Each test pit includes detailed stratigraphic logs documenting soil and rock classifications, in-place density measurements, and laboratory analysis results. Subsurface conditions generally consist of Quaternary Alluvium (Qal) backfill and native deposits overlying Cretaceous Menefee Formation (Kmf) sandstone bedrock. Materials encountered range from clayey sands and silty sands to poorly graded sands, with maximum excavation depths reaching 12 feet before encountering competent sandstone. Laboratory testing data includes particle size analysis, consistency limits (liquid limit and plasticity index), specific gravity, maximum dry density, and penetration resistance values. In-place compaction generally ranges from 73.8 to 88.6 percent of maximum dry density. The document includes geologic legends, site location maps with pipeline alignment details, aerial photographs of each turnout building site, and a comprehensive summary table of physical properties test results. Coordinates, ground elevations, and excavation dates are provided for all test pit locations. The report indicates water was not encountered at any test pit location during July 2025 excavations.

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NGWSP_Turnout_Buildings_Sources_Sought_-_Amendment_002_03JUNE26_3.pdf	PDF	Jun 3, 2026
DRAFT_00_00_02_-_Drawings__1__04032026_1.pdf	PDF	Jun 3, 2026
DRAFT_00_00_02_-_Drawings__2__04032026_1.pdf	PDF	Jun 3, 2026
Turnout_Buildings_Sources_Sought_1.pdf	PDF	Jun 3, 2026
DRAFT_00_00_01_-_Specifications_04032026_1.pdf	PDF	Jun 3, 2026

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DRAFT

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Tsé Da’azkání Pumping Plant (2)

Tó Ałts’íísí Pumping Plant (3)

Tooh Haltsooi Pumping Plant (4)

Pumping Plant No. 7

Tohlakai Hill Pumping Plant (8,9,10)

Pumping Plant No. 1(c)

Pumping Plant No. 2(c)

14.3a Pumping Plant (284gpm)

14.1 Pumping Plant

14.2 Pumping Plant

14.6 Pumping Plant

14.7a Pumping Plant

Pumping Plant No. 3(c)

Reach 25 Booster Station

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Huerfano Turnout

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Ojo-Encino North Turnout

Pueblo Pintado Turnout

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Shhiproockk TTurnout

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Los Alamos Harding Mora

Taos Rio Arriba

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Valencia

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Roosevelt

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GENERAL VICINITY MAP

FARMINGTON, NM

1695-529-60459

DESIGNED

DRAWN

CHECKED

TECH. APPR.

APPROVED

ADMIN APPROVAL

D. Thornburg

Beyer, Christopher

Beyer, Christopher R Geologist

Gladden, Ryan L P.E. - Professional Engineer

WASHINGTON

OREGON

MONTANA

WYOMING

IDAHO

CALIFORNIA

NEW MEXICO

ARIZONA

KEY MAP

COLORADO

NEVADA

UTAH

LEGEND

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-5

-6

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-1 .D

W G

S T

S A V

D A

-0 9-

S T

S A V

B Y

O R N

B U

R G

N A V A

-G A

U P

W A

R S

R O

C T

S A N

J U

A N

L A

R A L

R N

O U

T B U

GENERAL GEOLOGIC

LEGEND, EXPLANATION,

AND NOTES

FARMINGTON, NM

1695-529-60463

2025-09-22

DRAWN

CHECKED

TECH. APPR.

APPROVED

ADMIN APPROVAL

GEOLOGY

Beyer, Christopher

D. Thornburg

Graham, Kris

Beyer, Christopher R

Gladden, Ryan L P.E.

GENERAL GEOLOGIC LEGEND

STRATIGRAPHY

GEOLOGIC EXPLANATION GENERAL GEOLOGIC NOTES

BEDROCK ABBREVIATIONS:

SS- SANDSTONE

CLSTN - CLAYSTONE

SLTST - SILTSTONE

Quaternary Alluvium

Quaternary alluvium is derived from a variety of sources including slope wash, eolian and colluvial deposition as well as weathering and decomposition of in-place bedrock. Alluvium contains variable amounts of plastic to nonplastic fines and may contain sand, gravel, cobbles, and boulders.

Cretaceous Menefee Formation

The Cretaceous Menefee Formation consists primarily of light brown, fine-grained sandstone with interbedded claystone, shale and siltstone but can vary in color and grain size. The sandstone is generally moderately weathered (W5),moderately soft (H5) to soft (H6) and slightly fractured at the surface. The same sandstone unit, when excavated below ground level, can occasionally be moderately hard (H4) and slightly weathered (W3). A hard, calcareous sandstone bed frequently caps the upper 1 to 3 feet in some areas and is occasionally interbedded or lensed within the softer sandstone units. Intermittent hard (H3) concretionary lenses are are also present throughout the formation. This caprock/interbedded sandstone is often hard (H3) and can only be broken by a heavy hammer blow. The claystone is sandy, light brown to grey in color and is generally laminated to thinly bedded, intensely to moderately weathered (W6) and moderately soft (H5) to soft (H6). The claystone often grades to siltstone and occasionally becomes fissile, grading to shale. Thin coal seams are also sometimes encountered.

The coal is subbituminous to bituminous, friable, soft (H6), and moderately to intensely weathered (W6) to moderately to slightly weathered (W4).

Backfill material from pipeline construction

Fill consists of varying native materials including intermixed, lensed, clay, silt, sand, gravel, and cobble material.

Large particles are primarily subangular to angular, moderately hard (H4) to hard (H3) sandstone. Sporadic construction debris including garbage and concrete fragments are sometimes encountered.

Kmf Qal

TPTB-25-5

Qal

Kmf

Fill

N O

-0 9-

C O

R R

O G

R A

A L

R O

R S I

N T

H E

A N

D N

N O

-0 9-

Th or nb ur g

D T

H E

C R

N I

N T

H E

TPTB-25-2

TPTB-25-1

Centerline Reach 4C Pipeline Alignment

Right-of-way

Lateral Turnout tie in

Centerline Reach 6 Pipeline Alignment

Right-of-way

FILL

Qal

FILL

T H

S A

SHEET

B U

U O

F R

O N

U .S

A R

O F

C A D

A ut oC A D

S T

C A D

A M

-5

-6

-R D

-1 .D

W G

S T

S A V

D A

-0 9-

S T

S A V

B Y

O R N

B U

R G

N A V A

-G A

U P

W A

R S

R O

C T

R N

O U

T B U

SANOSTEE TURNOUT

SURFACE GEOLOGY &

LOCATION OF

EXPLORATION

FARMINGTON, NM

1695-529-60464

Feet 0 20 40

TEST PIT LOCATIONS

TPTB-25-1

TPTB-25-2

1976766.41

1976721.19

2462192.47

2462194.72

W108° 43' 12.74"

W108° 43' 12.70"

N36° 25' 45.47"

N36° 25' 45.02"

W108.72020422

W108.72019516

N36.42929585

N36.42917172

DRAWN

CHECKED

TECH. APPR.

APPROVED

ADMIN APPROVAL

GEOLOGY

Graham, Kris / Beyer, Christopher

D. Thornburg

Beyer, Christopher

Beyer, Christopher R Geologist

Gladden, Ryan L P.E. - Professional Engineer

TPTB-25-4

TPTB-25-3

R ight-of-w ay

C enterline R each 6 Pipeline A lignm ent

Lateral Turnout tie in

R ight-of-w ay

C enterline R each 7

Pipeline A lignm ent

U .S

H W

A Y 491

FILLl

Qal

FILLl

Qal

T H

S A

SHEET

B U

U O

F R

O N

U .S

A R

O F

C A D

A ut oC A D

S T

C A D

A M

-5

-6

-R D

-1 .D

W G

S T

S A V

D A

-0 9-

S T

S A V

B Y

O R N

B U

R G

N A V A

-G A

U P

W A

R S

R O

C T

R N

O U

T B U

NEWCOMB TURNOUT

SURFACE GEOLOGY &

LOCATION OF

EXPLORATION

FARMINGTON, NM

1695-529-60465

Feet 0 20 40

TEST PIT LOCATIONS

TPTB-25-3

TPTB-25-4

1925478.39

1925429.92

2466227.26

2466228.34

W108° 42' 17.70"

W108° 42' 17.69"

N36° 17' 18.68"

N36° 17' 18.21"

W108.70491804

W108.70491288

N36.28852361

N36.28839050

DRAWN

CHECKED

TECH. APPR.

APPROVED

ADMIN APPROVAL

GEOLOGY

Graham, Kris / Beyer, Christopher

D. Thornburg

Beyer, Christopher

Beyer, Christopher R Geologist

Gladden, Ryan L P.E. - Professional Engineer

TPTB-25-6

TPTB-25-5

Centerline Reach 9A Pipeline Alignm ent

Right-of-w ay

Right-of-w ay Lateral Turnout tie in

Centerline Reach 8

Pipeline Alignm ent

U .S. H

AY 491

FILL

Qal

FILL

Qal

T H

S A

SHEET

B U

U O

F R

O N

U .S

A R

O F

C A D

A ut oC A D

S T

C A D

A M

-5

-6

-R D

-1 .D

W G

S T

S A V

D A

-0 9-

S T

S A V

B Y

O R N

B U

R G

N A V A

-G A

U P

W A

R S

R O

C T

R N

O U

T B U

NASCHITTI TURNOUT

SURFACE GEOLOGY &

LOCATION OF

EXPLORATION

FARMINGTON, NM

1695-529-60466

Feet 0 20 40

TEST PIT LOCATIONS

TPTB-25-5

TPTB-25-6

1845403.30

1845336.50

2472011.78

2472034.89

W108° 40' 58.49"

W108° 40' 58.20"

N36° 04' 07.37"

N36° 04' 06.71"

W108.68291393

W108.68283377

N36.06871406

N36.06853112

DRAWN

CHECKED

TECH. APPR.

APPROVED

ADMIN APPROVAL

GEOLOGY

Graham, Kris / Beyer, Christopher

D. Thornburg

Beyer, Christopher

Beyer, Christopher R Geologist

Gladden, Ryan L P.E. - Professional Engineer

TPTB-25-7

Ce nt er lin e Re ac h

9B P ip el in e

Al ig nm en t

Ri gh t-of

-w ay

Ri gh t-of

-w ay

Lateral Turnout tie in

Qal

FILL

Qal

T H

S A

SHEET

B U

U O

F R

O N

U .S

A R

O F

C A D

A ut oC A D

S T

C A D

A M

-5

-6

-R D

-1 .D

W G

S T

S A V

D A

-0 9-

S T

S A V

B Y

O R N

B U

R G

N A V A

-G A

U P

W A

R S

R O

C T

R N

O U

T B U

BBN9 TURNOUT

SURFACE GEOLOGY &

LOCATION OF

EXPLORATION

FARMINGTON, NM

1695-529-60467

Feet 0 20 40

TEST PIT LOCATIONS

TPTB-25-7 1772888.78 2479029.36 W108° 39' 25.56" N35° 52' 10.88" W108.65709877 N35.86968816

DRAWN

CHECKED

TECH. APPR.

APPROVED

ADMIN APPROVAL

GEOLOGY

Graham, Kris / Beyer, Christopher

D. Thornburg

Beyer, Christopher

Beyer, Christopher R Geologist

Gladden, Ryan L P.E. - Professional Engineer

TPTB-25-9

TPTB-25-8

Ce nt er lin e Re ac h

P ip eli ne A lig nm en t

Ri gh t-o f-w ay

Lateral Turnout tie in

Qal

FILL

Qal

T H

S A

SHEET

B U

U O

F R

O N

U .S

A R

O F

C A D

A ut oC A D

S T

C A D

A M

-5

-6

-R D

-1 .D

W G

S T

S A V

D A

-0 9-

S T

S A V

B Y

O R N

B U

R G

N A V A

-G A

U P

W A

R S

R O

C T

R N

O U

T B U

COYOTE CANYON (BBN9)

TURNOUT

SURFACE GEOLOGY &

LOCATION OF

EXPLORATION

FARMINGTON, NM

1695-529-60468

2025-07-07

Feet 0 20 40

TEST PIT LOCATIONS

TPTB-25-8

TPTB-25-9

1728102.86

1728137.30

2453520.00

2453564.68

W108° 44' 30.43"

W108° 44' 29.90"

N35° 44' 45.75"

N35° 44' 46.10"

W108.74178712

W108.74163764

N35.74604287

N35.74613863

DRAWN

CHECKED

TECH. APPR.

APPROVED

ADMIN APPROVAL

GEOLOGY

Graham, Kris / Beyer, Christopher

D. Thornburg

Beyer, Christopher

Beyer, Christopher R Geologist

Gladden, Ryan L P.E. - Professional Engineer

G10

TPTB-25-10

Centerline Reach 12.1 Pipeline Alignment

Right-of-way

Rock Springs Turnout

Lateral Turnout tie in

Kmf

Qal

FILL

T H

S A

SHEET

B U

U O

F R

O N

U .S

A R

O F

C A D

A ut oC A D

S T

C A D

A M

-5

-6

-R D

-1 .D

W G

S T

S A V

D A

-0 9-

S T

S A V

B Y

O R N

B U

R G

N A V A

-G A

U P

W A

R S

R O

C T

R N

O U

T B U

ROCK SPRINGS

TURNOUT

SURFACE GEOLOGY &

LOCATION OF

EXPLORATION

FARMINGTON, NM

1695-529-60469

2025-07-07

Feet 0 20 40

TEST PIT LOCATIONS

TPTB-25-10 1688615.00 2415232.13 W108° 52' 09.82" N35° 38' 11.51" W108.86939527 N35.63653078

DRAWN

CHECKED

TECH. APPR.

APPROVED

ADMIN APPROVAL

GEOLOGY

Graham, Kris / Beyer, Christopher

D. Thornburg

Beyer, Christopher

Beyer, Christopher R Geologist

Gladden, Ryan L P.E. - Professional Engineer

G11

TPTB-25-11

TPTB-25-12

Centerline Reach 12.2 Pipeline Alignment

Right-of-way

Lateral Turnout tie in

QalQal

FILL

T H

S A

SHEET

B U

U O

F R

O N

U .S

A R

O F

C A D

A ut oC A D

S T

C A D

A M

-5

-6

-R D

-1 .D

W G

S T

S A V

D A

-0 9-

S T

S A V

B Y

O R N

B U

R G

N A V A

-G A

U P

W A

R S

R O

C T

R N

O U

T B U

WINDOW ROCK

TURNOUT

SURFACE GEOLOGY &

LOCATION OF

EXPLORATION

FARMINGTON, NM

1695-529-60470

2025-07-07

Feet 0 20 40

TEST PIT LOCATIONS

TPTB-25-11

TPTB-25-12

1698982.19

1698971.85

2363039.75

2363075.44

W109° 02' 43.58"

W109° 02' 43.15"

N35° 39' 48.13"

N35° 39' 48.03"

W109.04543962

W109.04531904

N35.66336813

N35.66334094

DRAWN

CHECKED

TECH. APPR.

APPROVED

ADMIN APPROVAL

GEOLOGY

Graham, Kris / Beyer, Christopher

D. Thornburg

Beyer, Christopher

Beyer, Christopher R Geologist

Gladden, Ryan L P.E. - Professional Engineer

G12

0.0 to 2.2 ft LEAN CLAY WITH SAND: About 75% fines; with medium plasticity, medium dry strength, and medium toughness; about 25% fine sand; maximum size, fine sand; strong reaction with HCl.

IN-PLACE CONDITION: Gray in color, homogeneous, dry.

GEOLOGIC INTERPRETATION: Quaternary Alluvium (Qal) /BACKFILL.

2.2 to 5.5 ft POORLY GRADED SAND WITH SILT: About 90% fine sand;

about 10% nonplastic fines; maximum size, fine sand; strong reaction with HCl.

IN-PLACE CONDITION: Gray in color, homogeneous, dry.

IN-PLACE UNIT WEIGHT AND MOISTURE FROM 4.5 ft.

Total: 91.6 lb/ft³, 2.6% (83.3% compaction) LAB TEST DATA: 65.3% sand, 34.7% fines, 0 % gravel, LL = NP PI =NP

SPG = 2.62

Maximum dry density: 109.9 lb/ft³, optimum water content = 13.6% Laboratory classification is SILTY SAND.

GEOLOGIC INTERPRETATION: Quaternary Alluvium (Qal) / BACKFILL.

5.5 to 8.5 ft SANDSTONE: Fine grained, thinly bedded with claystone interbeds, argillaceous, light brown in color, soft (H6) to moderately soft (H5) and intensely weathered (W7) to moderately to intensely weathered (W6), strong reaction with HCl, recovered as 3- to-6 inch subangular fragments.

GEOLOGIC INTERPRETATION: Cretaceous Menefee Formation (Kmf).

Corrosivity sample and in-place density test at

4.5 ft.

(CL)s

SP-SM

2.2 ft ()

5.5 ft ()

8.5 ft ()

Surface scarcely vegetated with weeds. Discontinued excavation due to difficult excavation in sandstone bedrock.

5 -in

PLUS

7-1336-A (1-86) Bureau of Reclamation

CLASSIFICATION AND DESCRIPTION OF MATERIAL

(SEE USBR 5000, 5005)D

P T

% PLUS 3 in

(BY VOLUME)

SHEET 1 OF 1

COMMENTS:

LOG OF TEST PIT NO. TPTB-25-1

CLASSIFICATION

GROUP

SYMBOL

3 -in

PROJECT: Navajo Gallup Water Supply Project

GROUND ELEVATION: 5564.7 ft

METHOD OF EXPLORATION: Deere 310G Backhoe

LOGGED BY: C. Beyer

DATE EXCAVATED: 7/31/2025

FEATURE: San Juan lateral Turnout Buildings

LOCATION: Sonostee Turnout

COORDINATES: N 1,976,766.4 E 2,462,192.5

APPROXIMATE DIMENSIONS: 12'X10'X8.5'

DEPTH TO WATER: 7/31/2025 DATE: NE

T E

S T

S A

N J

U A

N L

A T

E R

A L

T U

R N

O U

T B

G S

T E

S T

L O

G S

.G P

J T

E S

T P

D T

G13

0.0 to 3.3 ft LEAN CLAY WITH SAND: About 75% fines with medium plasticity, medium dry strength, and medium toughness; about 25% fine sand; maximum size, fine sand; strong reaction with HCl.

IN-PLACE CONDITION: Gray in color, homogeneous, dry.

GEOLOGIC INTERPRETATION: Quaternary Alluvium (Qal) /BACKFILL.

ft POORLY GRADED SAND WITH SILT: About 90% fine sand; about 10% nonplastic fines; maximum size, fine sand; Strong reaction with HCl.

IN-PLACE CONDITION: Gray in color, homogeneous, dry.

IN-PLACE UNIT WEIGHT AND MOISTURE FROM 4.0 ft.

Total: 86.3 lb/ft³, 3.7 % (73.8 % compaction) LAB TEST DATA: 60.0% sand, 40.0 % fines, 0 % gravel, LL=NP PI = NP, SPG=2.63

Maximum dry density: 116.9 lb/ft³, optimum water content = 13.3 % Laboratory classification is SILTY SAND.

GEOLOGIC INTERPRETATION: Quaternary Alluvium (Qal) / BACKFILL.

6.0 to 9.0 ft LEAN CLAY WITH SAND: About 75% fines; with medium plasticity, medium dry strength, and medium toughness; about 25% fine sand; maximum size, fine sand; strong reaction with HCl.

IN-PLACE CONDITION: Gray in color, homogeneous, dry.

GEOLOGIC INTERPRETATION: Quaternary Alluvium (Qal) /BACKFILL.

Corrosivity sample and in-place density test at

4.0 ft.

(CL)s

SP-SM

(CL)s

3.3 ft ()

6.0 ft ()

9.0 ft ()

Surface scarcely vegetated with weeds. Discontinued excavation due to difficult excavation in very stiff dry clay.

5 -in

PLUS

7-1336-A (1-86) Bureau of Reclamation

CLASSIFICATION AND DESCRIPTION OF MATERIAL

(SEE USBR 5000, 5005)D

P T

% PLUS 3 in

(BY VOLUME)

SHEET 1 OF 1

COMMENTS:

LOG OF TEST PIT NO. TPTB-25-2

CLASSIFICATION

GROUP

SYMBOL

3 -in

PROJECT: Navajo Gallup Water Supply Project

GROUND ELEVATION: 5564.8 ft

METHOD OF EXPLORATION: Deere 310G Backhoe

LOGGED BY: C. Beyer

DATE EXCAVATED: 7/31/2025

FEATURE: San Juan lateral Turnout Buildings

LOCATION: Sonostee Turnout

COORDINATES: N 1,976,721.2 E 2,462,194.7

APPROXIMATE DIMENSIONS: 12'X10'X9'

DEPTH TO WATER: 7/31/2025 DATE: NE

T E

S T

S A

N J

U A

N L

A T

E R

A L

T U

R N

O U

T B

G S

T E

S T

L O

G S

.G P

J T

E S

T P

D T

G14

0.0 to 8.5 ft CLAYEY SAND: About 80% fine sand; about 20% fines with low plasticity, low dry strength, and low toughness; maximum size, fine sand; strong reaction with HCl.

IN-PLACE CONDITION: Brownish red in color, homogeneous, dry.

IN-PLACE UNIT WEIGHT AND MOISTURE FROM 5.0 ft.

Total: 90.4 lb/ft³, 6.3 % (79.0% compaction) LAB TEST DATA: 54.6 % sand, 45.4 % fines, 0 % gravel, LL= 26.6 PI =

11.5 SPG=2.60

Maximum dry density: 114.4 lb/ft³, optimum water content = 15.0 % Laboratory classification is CLAYEY SAND.

GEOLOGIC INTERPRETATION: Quaternary Alluvium (Qal) / FILL.

8.5 to 9.5 ft POORLY GRADED SAND: About 95% fine sand; about 5% nonplastic fines; trace medium to coarse sand and gravel; maximum size, 25mm, strong reaction with HCl.

IN-PLACE CONDITION: Light brown in color, homogeneous, dry.

GEOLOGIC INTERPRETATION: Quaternary Alluvium (Qal) / FILL.

9.5 to 11.0 ft CLAYEY SAND: About 80% fine sand; about 20% fines with low plasticity, low dry strength, and low toughness; maximum size, fine sand; strong reaction with HCl.

IN-PLACE CONDITION: Brownish red in color, homogeneous, dry.

GEOLOGIC INTERPRETATION: Quaternary Alluvium (Qal) / FILL.

Corrosivity sample at 4.0

ft. In-place density test at

5.0 ft.

8.5 ft ()

9.5 ft ()

11.0 ft ()

Surface free of vegetation. Test pit in dirt road. Discontinued excavation due to limit of equipment.

5 -in

PLUS

7-1336-A (1-86) Bureau of Reclamation

CLASSIFICATION AND DESCRIPTION OF MATERIAL

(SEE USBR 5000, 5005)D

P T

% PLUS 3 in

(BY VOLUME)

SHEET 1 OF 1

COMMENTS:

LOG OF TEST PIT NO. TPTB-25-3

CLASSIFICATION

GROUP

SYMBOL

3 -in

PROJECT: Navajo Gallup Water Supply Project

GROUND ELEVATION: 5563.5 ft

METHOD OF EXPLORATION: Deere 310G Backhoe

LOGGED BY: C. Beyer

DATE EXCAVATED: 7/31/2025

FEATURE: San Juan lateral Turnout Buildings

LOCATION: Newcomb Turnout

COORDINATES: N 1,925,478.4 E 2,466,227.3

APPROXIMATE DIMENSIONS: 12'X10'X11'

DEPTH TO WATER: 7/31/2025 DATE: NE

T E

S T

S A

N J

U A

N L

A T

E R

A L

T U

R N

O U

T B

G S

T E

S T

L O

G S

.G P

J T

E S

T P

D T

G15

0.0 to 3.0 ft CLAYEY SAND: About 80% fine sand; about 20% fines with sand; strong reaction with HCl.

IN-PLACE CONDITION: Brownish red in color, homogeneous, dry.

GEOLOGIC INTERPRETATION: Quaternary Alluvium (Qal) / FILL.

3.0 to 11.5 ft POORLY GRADED SAND WITH SILT: About 90% fine sand;

about 10% fines with no plasticity, no dry strength and rapid dilatancy; trace medium to coarse sand and gravel; maximum size, 25mm, strong reaction with HCl.

IN-PLACE CONDITION: Light brown in color, Lensed with uneven bedding, dry.

IN-PLACE UNIT WEIGHT AND MOISTURE FROM 4.0 ft.

Total: 91.0 lb/ft³, 6.9 % (79.1% compaction) LAB TEST DATA: 57.7 % sand, 42.3% fines, 0 % gravel, LL= NP PI = NP

SPG=2.63

Maximum dry density: 115.1 lb/ft³, optimum water content = 14.1 % Laboratory classification is SILTY SAND.

GEOLOGIC INTERPRETATION: Quaternary Alluvium (Qal) / FILL.

Corrosivity sample and in-place density test at

4.0 ft.

SP-SM

3.0 ft ()

11.5 ft ()

Surface free of vegetation. Test pit in dirt road. Discontinued excavation due to limit of equipment. Encountered 3" pvc pipe painted orange around 6 ft in depth. Pipe was empty and did not appear to continue on other side of pit. Likely garbage.

5 -in

PLUS

7-1336-A (1-86) Bureau of Reclamation

CLASSIFICATION AND DESCRIPTION OF MATERIAL

(SEE USBR 5000, 5005)D

P T

% PLUS 3 in

(BY VOLUME)

SHEET 1 OF 1

COMMENTS:

LOG OF TEST PIT NO. TPTB-25-4

CLASSIFICATION

GROUP

SYMBOL

3 -in

PROJECT: Navajo Gallup Water Supply Project

GROUND ELEVATION: 5563.4 ft

METHOD OF EXPLORATION: Deere 310G Backhoe

LOGGED BY: C. Beyer

DATE EXCAVATED: 7/31/2025

FEATURE: San Juan lateral Turnout Buildings

LOCATION: Newcomb Turnout

COORDINATES: N 1,925,429.9 E 2,466,228.3

APPROXIMATE DIMENSIONS: 12'X10'X11.5'

DEPTH TO WATER: 7/31/2025 DATE: NE

T E

S T

S A

N J

U A

N L

A T

E R

A L

T U

R N

O U

T B

G S

T E

S T

L O

G S

.G P

J T

E S

T P

D T

G16

0.0 to 1.6 ft CLAYEY SAND: About 80% fine sand; about 20% fines with low plasticity, medium dry strength, and low toughness; trace gravel and cobbles; maximum size, 150mm; strong reaction with HCl.

IN-PLACE CONDITION: Brownish gray in color, homogeneous, dry.

GEOLOGIC INTERPRETATION: Quaternary Alluvium (Qal) / BACKFILL.

1.6 to 9.7 ft SILTY SAND: About 80% fine sand; about 20% nonplastic fines; trace gravel and cobbles; maximum size, 150mm; strong reaction with HCl.

IN-PLACE CONDITION: Brownish gray in color, homogeneous, dry.

IN-PLACE UNIT WEIGHT AND MOISTURE FROM 5.0 ft.

Total: 93.8 lb/ft³, 6.4 % (87.2 % compaction) LAB TEST DATA: 74.3 % sand, 25.7 % fines, 0 % gravel, LL= NP, PI = NP

SPG=2.61

Maximum dry density: 107.6 lb/ft³, optimum water content = 13.5 % Laboratory classification is SILTY SAND.

GEOLOGIC INTERPRETATION: Quaternary Alluvium (Qal)/ BACKFILL.

9.7 to 10.0 ft SANDSTONE: Fine grained, thinly bedded, argillaceous, light brown in color, soft (H6) to moderately soft (H5) and intensely weathered (W7) to moderately to intensely weathered (W6), strong reaction with HCl, recovered as 3- to -6 inch subangular fragments.

GEOLOGIC INTERPRETATION: Cretaceous Menefee Formation (Kmf).

TraceTrace

Trace

Corrosivity sample at 4.5

ft. In-place density test at

5.0 ft.

1.6 ft ()

9.7 ft ()

10.0 ft ()

Surface scarcely vegetated with weeds. Some gravel, cobbles and concrete fragments on the surface. Discontinued excavation due to refusal in sandstone bedrock.

5 -in

PLUS

7-1336-A (1-86) Bureau of Reclamation

CLASSIFICATION AND DESCRIPTION OF MATERIAL

(SEE USBR 5000, 5005)D

P T

% PLUS 3 in

(BY VOLUME)

SHEET 1 OF 1

COMMENTS:

LOG OF TEST PIT NO. TPTB-25-5

CLASSIFICATION

GROUP

SYMBOL

3 -in

PROJECT: Navajo Gallup Water Supply Project

GROUND ELEVATION: 5872.4 ft

METHOD OF EXPLORATION: Deere 310G Backhoe

LOGGED BY: C. Beyer

DATE EXCAVATED: 7/30/2025

FEATURE: San Juan lateral Turnout Buildings

LOCATION: Naschitti Turnout

COORDINATES: N 1,845,403.3 E 2,472,011.8

APPROXIMATE DIMENSIONS: 12'X10'X10'

DEPTH TO WATER: 7/30/2025 DATE: NE

T E

S T

S A

N J

U A

N L

A T

E R

A L

T U

R N

O U

T B

G S

T E

S T

L O

G S

.G P

J T

E S

T P

D T

G17

0.0 to 1.5 ft CLAYEY SAND: About 80% fine sand; about 20% fines with low plasticity, medium dry strength, and low toughness; trace gravel and cobbles; maximum size, 150mm; strong reaction with HCl.

IN-PLACE CONDITION: Brownish gray in color, homogeneous, dry.

GEOLOGIC INTERPRETATION: Quaternary Alluvium (Qal) / BACKFILL.

1.5 to 4.5 ft SILTY SAND: About 80% fine sand; about 20% nonplastic fines; trace gravel and cobbles; maximum size, 150mm; strong reaction with HCl.

IN-PLACE CONDITION: Brownish gray in color, homogeneous, dry.

IN-PLACE UNIT WEIGHT AND MOISTURE FROM 4.5 ft.

Total: 99.4 lb/ft³, 6.0 % (88.6 % compaction) LAB TEST DATA: 82.7 % sand, 17.3 % fines, 0 % gravel, LL= NP, PI =

NP, SPG= 2.62.

Maximum dry density: 112.2 lb/ft³, optimum water content =15.5 %.

Laboratory classification is SILTY SAND.

GEOLOGIC INTERPRETATION: Quaternary Alluvium (Qal)/ BACKFILL.

4.5 to 5.5 ft CLAYEY SAND: About 70% fine sand; about 30% fines with low plasticity, medium dry strength, and low toughness; trace gravel and cobbles; maximum size, 150mm; strong reaction with HCl.

IN-PLACE CONDITION: Brownish gray in color, homogeneous, dry.

GEOLOGIC INTERPRETATION: Quaternary Alluvium (Qal) / BACKFILL.

5.5 to 6.5 ft SANDSTONE: Fine grained, thinly to moderately bedded, light brown in color, soft (H6) to moderately soft (H5) and intensely weathered (W7) to moderately weathered (W5), strong reaction with HCl, recovered as 3- to -6 inch subangular fragments.

GEOLOGIC INTERPRETATION: Cretaceous Menefee Formation (Kmf).

TraceTrace

Trace

Corrosivity sample at 4.0

ft. in-place density test at

4.5 ft.

1.5 ft ()

4.5 ft ()

5.5 ft ()

6.5 ft ()

Surface scarcely vegetated with weeds. Some gravel, cobbles and concrete fragments on the surface. Discontinued excavation due to refusal in sandstone bedrock.

5 -in

PLUS

7-1336-A (1-86) Bureau of Reclamation

CLASSIFICATION AND DESCRIPTION OF MATERIAL

(SEE USBR 5000, 5005)D

P T

% PLUS 3 in

(BY VOLUME)

SHEET 1 OF 1

COMMENTS:

LOG OF TEST PIT NO. TPTB-25-6

CLASSIFICATION

GROUP

SYMBOL

3 -in

PROJECT: Navajo Gallup Water Supply Project

GROUND ELEVATION: 5873.3 ft

METHOD OF EXPLORATION: Deere 310G Backhoe

LOGGED BY: C. Beyer

DATE EXCAVATED: 7/30/2025

FEATURE: San Juan lateral Turnout Buildings

LOCATION: Naschitti Turnout

COORDINATES: N 1,845,336.5 E 2,472,034.9

APPROXIMATE DIMENSIONS: 12'X10'X6.5'

DEPTH TO WATER: 7/30/2025 DATE: NE

T E

S T

S A

N J

U A

N L

A T

E R

A L

T U

R N

O U

T B

G S

T E

S T

L O

G S

.G P

J T

E S

T P

D T

G18

0.0 t 8.5 ft CLAYEY SAND: About 85% fine sand; about 15% fines with low plasticity, low dry strength, and low toughness; maximum size, fine sand;

strong reaction with HCl.

IN-PLACE CONDITION: Gray in color, homogeneous, dry from 0.0 to 4.0 ft.

Moist from 4.0 to 8.5 ft.

IN-PLACE UNIT WEIGHT AND MOISTURE FROM 4.5 ft.

Total: 84.1 lb/ft³, 14.8 % (75.9 % compaction) LAB TEST DATA: 43.0 % sand, 57.0 % fines, 0 % gravel, LL= 32.1 PI =

15.9 SPG= 2.67.

Maximum dry density: 110.8 lb/ft³, optimum water content = 16.0 %.

Laboratory classification is SANDY LEAN CLAY .

GEOLOGIC INTERPRETATION: Quaternary Alluvium (Qal) / FILL.

8.5 to 12.0 ft POORLY GRADED SAND WITH SILT: About 90% fine sand;

about 10% nonplastic fines; maximum size, fine sand; Strong reaction with HCl.

IN-PLACE CONDITION: Gray in color, homogeneous, dry.

GEOLOGIC INTERPRETATION: Quaternary Alluvium (Qal) / BACKFILL.

Corrosivity sample at 4.0

ft. In-place density test at

4.5 ft.

SP-SM

8.5 ft ()

12.0 ft ()

Surface vegetated with Russian Thistle and native plants. Discontinued excavation due to limit of equipment.

5 -in

PLUS

7-1336-A (1-86) Bureau of Reclamation

CLASSIFICATION AND DESCRIPTION OF MATERIAL

(SEE USBR 5000, 5005)D

P T

% PLUS 3 in

(BY VOLUME)

SHEET 1 OF 1

COMMENTS:

LOG OF TEST PIT NO. TPTB-25-7

CLASSIFICATION

GROUP

SYMBOL

3 -in

PROJECT: Navajo Gallup Water Supply Project

GROUND ELEVATION: 6049.5 ft

METHOD OF EXPLORATION: Deere 310G Backhoe

LOGGED BY: C. Beyer

DATE EXCAVATED: 7/30/2025

FEATURE: San Juan lateral Turnout Buildings

LOCATION: BBN9 Turnout

COORDINATES: N 1,772,888.8 E 2,479,029.4

APPROXIMATE DIMENSIONS: 12'X10'X12'

DEPTH TO WATER: 7/30/2025 DATE: NE

T E

S T

S A

N J

U A

N L

A T

E R

A L

T U

R N

O U

T B

G S

T E

S T

L O

G S

.G P

J T

E S

T P

D T

G19

0.0 to 0.8 ft CLAYEY SAND: About 85% fine sand; about 15% fines with sand; strong reaction with HCl.

IN-PLACE CONDITION: Gray in color, homogeneous, dry.

GEOLOGIC INTERPRETATION: BACKFILL.

0.8 to 1.5 ft CONCRETE/CEMENT TRUCK WASHOUT: Cement and gravel mixed with native soil. Evidence that concrete truck was washed out at test pit site then covered up with soil. moderately soft (H5), fractured and discontinuous.

IN-PLACE CONDITION: Gray in color, moderately cemented, dry.

GEOLOGIC INTERPRETATION: Concrete Truck washout.

1.5 to 10.0 ft CLAYEY SAND: About 85% fine sand; about 15% fines with low plasticity, low toughness and low dry strength and slow dilatancy;

maximum size, fine sand; strong reaction with HCl.

IN-PLACE CONDITION: Brownish red in color, homogeneous, dry.

IN-PLACE UNIT WEIGHT AND MOISTURE FROM 4.5 ft.

Total: 92.8 lb/ft³, 6.3 % (82.5 % compaction) LAB TEST DATA: 35.3% sand, 64.7 % fines, 0 % gravel, LL=27.9 PI =

10.6 SPG=2.66

Maximum dry density: 112.5 lb/ft³, optimum water content = 14.4 % Laboratory classification is SANDY LEAN CLAY.

GEOLOGIC INTERPRETATION: Quaternary Alluvium (Qal)/ BACKFILL.

Corrosivity sample and in-place density test at at 4.5 ft.

CEMENT/GRAVEL/SOIL

0.8 ft ()

1.5 ft ()

10.0 ft ()

Surface sparsely vegetated with Russian Thistle. Gravel and concrete fragments at the surface.

5 -in

PLUS

7-1336-A (1-86) Bureau of Reclamation

CLASSIFICATION AND DESCRIPTION OF MATERIAL

(SEE USBR 5000, 5005)D

P T

% PLUS 3 in

(BY VOLUME)

SHEET 1 OF 1

COMMENTS:

LOG OF TEST PIT NO. TPTB-25-8

CLASSIFICATION

GROUP

SYMBOL

3 -in

PROJECT: Navajo Gallup Water Supply Project

GROUND ELEVATION: 6251.4 ft

METHOD OF EXPLORATION: Deere 310G Backhoe

LOGGED BY: C. Beyer

DATE EXCAVATED: 7/29/2025

FEATURE: San Juan lateral Turnout Buildings

LOCATION: Coyote Canyon Turnout

COORDINATES: N 1,728,102.9 E 2,453,520

APPROXIMATE DIMENSIONS: 12'X10'X10'

DEPTH TO WATER: 7/29/2025 DATE: NE

T E

S T

S A

N J

U A

N L

A T

E R

A L

T U

R N

O U

T B

G S

T E

S T

L O

G S

.G P

J T

E S

T P

D T

G20

0.0 to 1.0 ft CLAYEY SAND: About 85% predominately fine sand, trace medium to coarse sand, gravel and cobbles; about 15% fines with low plasticity, low dry strength, and low toughness; maximum size, 200mm;

strong reaction with HCl.

IN-PLACE CONDITION: Brownish red in color, dry.

GEOLOGIC INTERPRETATION: BACKFILL.

1.0 to 3.5 ft SILTY SAND WITH GRAVEL: About 65% fine sand; about 20 % fine to coarse gravel; about 15% nonplastic fines; maximum size, coarse gravel; strong reaction with HCl.

IN-PLACE CONDITION: Brownish red in color, lensed, dry.

GEOLOGIC INTERPRETATION: BACKFILL.

3.5 to 11.5 ft SILTY SAND: About 85% fine sand; about 15% nonplastic fines; trace gravel and concrete fragments; maximum size, 75mm; strong reaction with HCl.

IN-PLACE CONDITION: Brownish red in color, calcite cemented, lensed, dry.

IN-PLACE UNIT WEIGHT AND MOISTURE FROM 4.5 ft.

Total: 94.3 lb/ft³, 6.3 % (80.6 % compaction) LAB TEST DATA: 54.5 % sand, 35.1 % fines, 10.4 % gravel, LL=21.6 PI

=4.8 SPG =2.55.

Maximum dry density: 117.0 lb/ft³, optimum water content = 11.0 %.

Laboratory classification is CLAYEY SAND WITH SILT.

GEOLOGIC INTERPRETATION: BACKFILL.

Trace Trace

Corrosivity sample at 4.0

ft. In-place density test at at 4.5 ft.

(SM)g

1.0 ft ()

3.5 ft ()

11.5 ft ()

Surface sparsely vegetated with Russian Thistle. Gravel and concrete fragments at the surface.

5 -in

PLUS

7-1336-A (1-86) Bureau of Reclamation

CLASSIFICATION AND DESCRIPTION OF MATERIAL

(SEE USBR 5000, 5005)D

P T

% PLUS 3 in

(BY VOLUME)

SHEET 1 OF 1

COMMENTS:

LOG OF TEST PIT NO. TPTB-25-9

CLASSIFICATION

GROUP

SYMBOL

3 -in

PROJECT: Navajo Gallup Water Supply Project

GROUND ELEVATION: 6249.5 ft

METHOD OF EXPLORATION: Deere 310G Backhoe

LOGGED BY: C. Beyer

DATE EXCAVATED: 7/29/2025

FEATURE: San Juan lateral Turnout Buildings LOCATION: Coyote Canyon Turnout

COORDINATES: N 1,728,137.3 E 2,453,564.7

APPROXIMATE DIMENSIONS: 12'X10'X11.5'

DEPTH TO WATER: 7/30/2025 DATE: NE

T E

S T

S A

N J

U A

N L

A T

E R

A L

T U

R N

O U

T B

G S

T E

S T

L O

G S

.G P

J T

E S

T P

D T

G21

0.0 to 2.0 ft CLAYEY SAND: About 80% predominately fine sand; trace medium to coarse sand, gravel and cobbles; about 20% fines with low plasticity, low dry strength, and low toughness; maximum size, 250mm;

strong reaction with HCl.

IN-PLACE CONDITION: Brown in color, dry.

GEOLOGIC INTERPRETATION: Quaternary Alluvium (Qal) / FILL.

2.0 to 10.0 ft CLAYEY SAND WITH GRAVEL: About 55% fine to coarse sand; about 35% fines with medium plasticity, medium dry strength, and medium toughness; maximum size, coarse gravel; asbout 10% fine to coarse gravel; maximum size coarse gravel; strong reaction with HCl.

IN-PLACE CONDITION: Brown in color, lenses with gravel, moist.

IN-PLACE UNIT WEIGHT AND MOISTURE FROM 5.5 ft.

Total: 92.6 lb/ft³, 2.4% (84.3% compaction) LAB TEST DATA: 36.9% sand, 63.1% fines, 0% gravel, LL=34.4 PI =

16.6 SPG=2.65

Maximum dry density: 109.8 lb/ft³, optimum water content = 12.6 % Laboratory classification is SANDY LEAN CLAY .

GEOLOGIC INTERPRETATION: Quaternary Alluvium (Qal) / FILL.

tracetrace

Corrosivity sample at 4.0

ft. In-place density test at

5.5 ft.

(SC)g

2.0 ft ()

10.0 ft ()

Surface scarcely vegetated with weeds. Discontinued excavation due to tough conditions and backhoe overheating. Yellow cathodic protection tape discovered in first attempt at 4.0 feet in depth. Moved test pit about 10 feet east and started over.

5 -in

PLUS

7-1336-A (1-86) Bureau of Reclamation

CLASSIFICATION AND DESCRIPTION OF MATERIAL

(SEE USBR 5000, 5005)D

P T

% PLUS 3 in

(BY VOLUME)

SHEET 1 OF 1

COMMENTS:

LOG OF TEST PIT NO. TPTB-25-10

CLASSIFICATION

GROUP

SYMBOL

3 -in

PROJECT: Navajo Gallup Water Supply Project

GROUND ELEVATION: 6852.9 ft

METHOD OF EXPLORATION: Deere 310G Backhoe

LOGGED BY: C. Beyer

DATE EXCAVATED: 7/28/2025

FEATURE: San Juan lateral Turnout Buildings

LOCATION: Rock Springs Turnout

COORDINATES: N 1,688,615 E 2,415,232.1

APPROXIMATE DIMENSIONS: 12'X10'X10'

DEPTH TO WATER: 7/28/2025 DATE: NE

T E

S T

S A

N J

U A

N L

A T

E R

A L

T U

R N

O U

T B

G S

T E

S T

L O

G S

.G P

J T

E S

T P

D T

G22

0.0 to 4.0 ft POORLY GRADED SAND: About 95% fine sand; about 5% nonplastic fines; maximum size, fine sand, no to strong reaction with HCl.

IN-PLACE CONDITION: Brownish red in color, homogeneous, dry.

GEOLOGIC INTERPRETATION: Quaternary Alluvium (Qal) / FILL.

4.0 to 4.5 ft POORLY GRADED SAND WITH GRAVEL: About 65% fine sand; About 30% fine to coarse subangular to subrounded gravel; About 5% fines with no plasticity, no dry strength and rapid dilatancy; trace cobbles; maximum size, 150mm, strong reaction with HCl.

IN-PLACE CONDITION: Brownish red in color, dry.

GEOLOGIC INTERPRETATION: Quaternary Alluvium (Qal).

4.5 to 12.0 ft POORLY GRADED SAND: About 90% fine sand; about 10% nonplastic fines; maximum size, fine sand, strong reaction with HCl.

IN-PLACE CONDITION: Brownish red in color, homogeneous, dry.

GEOLOGIC INTERPRETATION: Quaternary Alluvium (Qal).

tracetrace

Corrosivity sample at 4.0 ft

(SP)g

4.0 ft ()

4.5 ft ()

12.0 ft ()

Surface scarcely vegetated with Russian Thistle. Discontinued excavation due to limit of equipment.

5 -in

PLUS

7-1336-A (1-86) Bureau of Reclamation

CLASSIFICATION AND DESCRIPTION OF MATERIAL

(SEE USBR 5000, 5005)D

P T

% PLUS 3 in

(BY VOLUME)

SHEET 1 OF 1

COMMENTS:

LOG OF TEST PIT NO. TPTB-25-11

CLASSIFICATION

GROUP

SYMBOL

3 -in

PROJECT: Navajo Gallup Water Supply Project

GROUND ELEVATION: 6787.0 ft

METHOD OF EXPLORATION: Deere 310G Backhoe

LOGGED BY: C. Beyer

DATE EXCAVATED: 7/28/2025

FEATURE: San Juan lateral Turnout Buildings

LOCATION: Window Rock Turnout

COORDINATES: N 1,698,982.2 E 2,363,039.7

APPROXIMATE DIMENSIONS: 12'X10'X12'

DEPTH TO WATER: 7/28/2025 DATE: NE

T E

S T

S A

N J

U A

N L

A T

E R

A L

T U

R N

O U

T B

G S

T E

S T

L O

G S

.G P

J T

E S

T P

D T

G23

0.0 to 12.0 ft POORLY GRADED SAND WITH SILT : About 90% fine sand;

about 10% nonplastic fines; trace fine to coarse gravel; maximum size, 75mm, no to strong reaction with HCl.

IN-PLACE CONDITION: Brownish red in color, homogeneous, dry.

IN-PLACE UNIT WEIGHT AND MOISTURE FROM 7.0 ft.

Total: 92.3 lb/ft³, 2.4 % (80.7% compaction) LAB TEST DATA: 79.9 % sand, 20.1 % fines, 0% gravel, LL=NP PI =NP

SPG=2.65

Maximum dry density: 114.3 lb/ft³, optimum water content = 10.8 % Laboratory classification is SILTY SAND.

GEOLOGIC INTERPRETATION: Quaternary Alluvium (Qal).

Corrosivity sample at 4.0

ft. In-place density test at at 7.0 ft.

SP-SM

12.0 ft ()

Surface scarcely vegetated with Russian Thistle. Discontinued excavation due to limit of equipment.

5 -in

PLUS

7-1336-A (1-86) Bureau of Reclamation

CLASSIFICATION AND DESCRIPTION OF MATERIAL

(SEE USBR 5000, 5005)D

P T

% PLUS 3 in

(BY VOLUME)

SHEET 1 OF 1

COMMENTS:

LOG OF TEST PIT NO. TPTB-25-12

CLASSIFICATION

GROUP

SYMBOL

3 -in

PROJECT: Navajo Gallup Water Supply Project

GROUND ELEVATION: 6787.0 ft

METHOD OF EXPLORATION: Deere 310G Backhoe

LOGGED BY: C. Beyer

DATE EXCAVATED: 7/29/2025

FEATURE: San Juan lateral Turnout Buildings

LOCATION: Window Rock Turnout

COORDINATES: N 1,698,971.9 E 2,363,075.4

APPROXIMATE DIMENSIONS: 12'X10'X12'

DEPTH TO WATER: 7/29/2025 DATE: NE

T E

S T

S A

N J

U A

N L

A T

E R

A L

T U

R N

O U

T B

G S

T E

S T

L O

G S

.G P

J T

E S

T P

D T

G24

SUMMARY OF PHYSICAL PROPERTIES TEST RESULTS

PROJECT: NAVAJO GALLUP WATER SUPPLY PROJECT FEATURE: TURNOUT BUILDINGS Page 1 of 1

IDENTIFICATION PARTICLE SIZE FRACTIONS

IN PERCENT

CONSISTENCY

LIMITS IN-PLACE DENSITY COMPACTION TESTS

T E

U M

B E

H fe et

A T

M B

FINES

4m m to

(4 .7

6m m

G R

A V

E L

(4 .7

6m m to

2m m

C O

E S

(7 6.

2m m to

(1 m m

O V

E R

E L ar ge r th an

(1 m m

E X

A G

E L

Y D

E N

Y pc f

L W

N T

E N

R A

S N o.

R A

U S

N o.

U M

T Y pc f

N T

E N

A T

N C

E ps i

D -V

A L

U E

R E

L A

C T

L L

E R

T H

*TPTB-25-1 4.5 SM 11.4 23.3 65.3 0 - - NP NP - 91.6 2.6 - 2.62 109.9 13.6 800 83.3 -

*TPTB-25-2 4.0 SM 19.1 20.9 60.0 0 - - NP NP - 86.3 3.7 - 2.63 116.9 13.3 740 73.8 -

*TPTB-25-3 5.0 SC 26.8 18.6 54.6 0 - - 26.6 11.5 - 90.4 6.3 - 2.60 114.4 15.0 350 79.0 -

*TPTB-25-4 4.0 SM 23.8 18.5 57.7 0 - - NP NP - 91.0 6.9 - 2.63 115.1 14.1 700 79.1 -

*TPTB-25-5 5.0 SM 14.2 11.5 74.3 0 - - NP NP - 93.8 6.4 - 2.61 107.6 13.5 1050 87.2 -

*TPTB-25-6 4.5 SM 9.9 7.4 82.7 0 - - NP NP - 99.4 6.0 - 2.62 112.2 15.5 680 88.6 -

*TPTB-25-7 4.5 S(CL) 39.1 17.9 43.0 0 - - 32.1 15.9 - 84.1 14.8 - 2.67 110.8 16.0 550 75.9 -

*TPTB-25-8 4.5 S(CL) 24.8 39.9 35.3 0 - - 27.9 10.6 - 92.8 6.3 - 2.66 112.5 14.4 1050 82.5 -

*TPTB-25-9 4.5 SC-SM 13.5 21.6 54.5 10.4 - - 21.6 4.8 - 94.3 6.3 2.29 2.55 117.0 11.0 1750 80.6 -

*TPTB-25-10 5.5 S(CL) 30.3 32.8 36.9 0 - - 34.4 16.6 - 92.6 12.6 - 2.65 109.8 17.2 355 84.3 -

*TPTB-25-12 7.0 SM 9.8 10.3 79.9 0 - - NP NP - 92.3 2.4 - 2.65 114.3 10.8 900 80.7 -

* Denotes In-place density and 5-point curve

G25

File details come from the government source that posted it. Updated Jun 3, 2026.