Attachment_2_00_00_02A_Geology_Drawings_PCD2015.pdf

Pasture Canyon Dam Modifications

Bureau of Indian Affairs

Hopi Indian Reservation - Arizona Solicitation No.

ATTACHMENT 2 – 00 00 02A GEOLOGY DRAWINGS Feb -2015 Attachment 2 - 1

ATTACHMENT 2

00 00 02A GEOLOGY DRAWINGS Feb 2015

Pasture Canyon Dam Modifications

Bureau of Indian Affairs

Hopi Indian Reservation - Arizona Solicitation No.

ATTACHMENT 2 – 00 00 02A GEOLOGY DRAWINGS Feb -2015 Attachment 2 - 2

This page intentionally left blank.

LAR M TA IOCE N

Bureau of Reclamation 302 E. 1860 S.

Provo Area Office Materials Laboratory Provo, Utah 84606

(801) 379-1000 Summary of Physical Properties

Project:BIA SOD Feature: Pasture Canyon Dam Description: TP 12 - 01 thru 12 - 06 Fines Sand Gravel Cobble Cobble Boulder Atterberg Limits Crumb In-place Laboratory

Sample Top Bottom Group Less Than .005 to .075 mm #4 to 3 in. to 5 in. to plus Test Dry Dens. Water Content Vib Max Opt

No. Depth Depth Symbol .005 mm .075 mm to #4 3 in. 5 in. 12 in. 12 in. %LL %PI %SL (-) #4 (+) #4 Grade in pcf Tot. % (-) #4 % Max Dens H2O

TP12-01 0.0 2.5 (SM) 7 10 77 6 100 NP 1.9 1.9

TP 12-01 2.5 10.0 (SP-SM)g 4 3 71 22 100 NP 1.7 1.7 TP 12-02 0.5 7.0 (SP-SM)g 4 4 47 45 100 NP 1.8 2.4 122.4 TP 12-03 1.5 9.5 (SP-SM)g 4 4 50 42 100 NP 1.0 1.0 TP 12-04 0.0 6.0 (SP-SM)g 5 7 77 11 100 NP 1.0 1.1 TP 12-04 6.0 11.0 (SP-SM)g 5 62 33 100 NP 1.9 2.0 117.6 TP 12-05 0.0 3.0 (SM)g 14 10 48 28 100 NP 2.6 2.6

TP 12-05 3.0 9.0 (SM) 11 7 69 13 100 NP 0.0 0.0

TP 12-06 0.0 3.0 (SM) 7 22 71 100 NP 8.1

TP 12-06 3.0 6.0 (SM) 13 34 53 100 21.2 3.6 1 19.5 114.3 12.4

TP 12-06 6.0 9.0 s(CL) 25 33 42 tr 100 39.9 20.8 1 34.6 95.4 27.2

SP. G

Page 1 F:\Pasture Canyon\test pits\Pasture Canyon TP 12 grad-pps.xls

Bureau of Reclamation 302 E. 1860 S.

Provo Area Office Materials Laboratory Provo, Utah 84606

(801) 379-1000 Summary of Gradation and Hydrometer Analysis

Project: BIA SOD Feature: Pasture Canyon Dam Description: TP 12 - 01 thru 12 - 06 Gradation -- Particle Size Fraction in Percent Passing Hydrometer Analysis (min.)

Sample Top Bottom Group 76.2 38.1 19.0 9.5 4.75 2.36 1.18 0.600 0.300 0.150 0.075 0.037 0.019 0.009 0.005 0.002 0.001

No. Depth Depth Sym. 3" 1 1/2" 3/4" 3/8" #4 #8 #16 #30 #50 #100 #200 1 4 19 60 435 1545 TP12-01 0.0 2.5 Silty sand (SM) 100 99.6 96.8 93.9 89.0 87.5 86.4 79.5 55.0 16.9 11.9 9.4 7.7 6.8 TP 12-01 2.5 10.0 Poorly graded sand with silt and gravel (SP-SM)g 100 98.9 95.0 87.2 78.0 66.1 63.5 61.4 53.1 30.0 6.5 6.0 5.6 4.2 3.5 TP 12-02 0.5 7.0 Poorly graded sand with silt and gravel (SP-SM)g 100 98.0 90.0 72.0 55.0 45.0 42.0 40.0 35.0 20.0 8.0 8.0 6.0 5.0 4.0 TP 12-03 1.5 9.5 Poorly graded sand with silt and gravel (SP-SM)g 100 95.6 87.1 70.3 57.8 45.0 42.6 41.5 37.3 21.6 8.3 7.1 6.0 4.9 3.8 TP 12-04 0.0 6.0 Poorly graded sand with silt and gravel (SP-SM)g 100 98.6 97.8 93.8 89.3 80.5 78.3 76.6 67.7 41.0 11.7 8.8 7.1 6.3 5.4 TP 12-04 6.0 11.0 Poorly graded sand with silt and gravel (SP-SM)g 100 95.7 89.4 76.5 66.6 57.1 54.8 52.5 42.7 19.8 5.4 TP 12-05 0.0 3.0 Silty sand with gravel (SM)g 100 99.8 96.6 86.1 71.6 59.2 56.5 55.4 51.6 38.8 23.5 22.1 19.4 16.8 14.1 TP 12-05 3.0 9.0 Silty sand (SM) 100 97.9 95.6 90.9 86.6 79.7 77.9 76.6 70.2 45.9 18.4 17.8 15.2 13.4 10.8 TP 12-06 0.0 3.0 Silty sand (SM) 100 99.9 99.8 95.8 67.9 28.7 15.9 10.9 7.9 6.9 TP 12-06 3.0 6.0 Silty sand (SM) 100 99.8 94.8 75.9 46.6 30.9 18.9 14.9 12.9 12.0 TP 12-06 6.0 9.0 Sandy lean clay s(CL) 100 98.7 94.0 89.1 83.9 74.4 58.1 40.8 31.1 27.2 25.2 21.4

Classification Date

Page 1 F:\Pasture Canyon\test pits\Pasture Canyon TP 12 grad-pps.xls

Bureau of Reclamation LOG OF TEST PIT Hole No. TP12-01

FEATURE: Pasture Canyon Dam AREA DESIGNATION: Pasture Borrow

COORDINATES: N3996195, E481246

APPROX. DIMENSIONS: 11 x 5 x 10 ft. deep

DEPTH TO WATER: NA DATE: 8-30-12

PROJECT: BIA SOD

GROUND ELEVATION: 4924 ft.

METHOD OF EXPLORATION: Back Hoe LOGGED BY: Robert Lung P.G.

DATE(S) LOGGED: 8-30-12

CLASSIFICATION

GROUP

SYMBOL

CLASSIFICATION AND DESCRIPTION OF MATERIAL

(SEE USBR 5000, 5005)

% PLUS 3-INCH

BY VOLUME

3-5 inch

5–12 inch

Plus inch (SM)g

(Visual)

(lab classif.)

SM

One 50 lbs sack

2.5 ft.

0.0 to 2.5 ft. SILTY SAND WITH GRAVEL: Approximately 60 percent predominately fine sand; approximately 25 percent non plastic silty fines, low dry strength, moderate dilatancy, and low toughness;

approximately 15 percent fine, moderately hard, subrounded gravel composed of sandstone; maximum sixe 30 mm.

IN PLACE CONDITIONS: Eolian sands and silts loosely stratified, dry, tan to buff.

LAB TEST DATA: 77% sand, 6% gravel, 17% fines, PI=NP, Water content – 1.9%. Laboratory Classification – Silty Sand (SM)

GEOLOGIC INTERPRETATION: Eolian deposits

(SP)g

(SP-SM)g

10.0 ft.

2.5 to 10.0 ft. POORLY SORTED SAND WITH GRAVEL:

Approximately 75 percent fine to medium sand; approximately 20 percent fine, moderately hard, subrounded gravel composed of sandstone; maximum size 40 mm.

IN PLACE CONDITIONS: Eolian sands and silts loosely stratified, dry, buff to tan.

LAB TEST DATA: 71% sand, 22% gravel, 7% fines, PI=NP, Water content – 1.7%. Laboratory Classification – Poorly Graded Sand with Silt and Gravel (SP-SM)g

REMARKS:

Test pit location shot with handheld GPS.

Bureau of Reclamation LOG OF TEST PIT Hole No. TP12-02

AREA DESIGNATION: Pasture Borrow

COORDINATES: N3996187, E481174

APPROX. DIMENSIONS: 10 x 5 x 7 ft. deep

METHOD OF EXPLORATION: Back Hoe LOGGED BY: Robert Lung P.G.

DATE(S) LOGGED: 8-30-12

CLASSIFICATION

GROUP

SYMBOL

CLASSIFICATION AND DESCRIPTION OF MATERIAL

(SEE USBR 5000, 5005)

% PLUS 3-INCH

BY VOLUME

3-5 inch

5–12 inch

Plus inch

No Sample Collected

0.5 ft.

0.0 to 0.5 ft. SILTY SAND WITH GRAVEL: Approximately 60 percent predominately fine sand; approximately 25 percent non plastic silty fines, low dry strength, moderate dilatancy, and low toughness;

approximately 15 percent fine, moderately hard, subrounded gravel composed of sandstone; maximum sixe 30 mm.

IN PLACE CONDITIONS: Eolian sands and silts loosely stratified, dry, tan to buff.

7.0 ft.

0.5 to 7.0 ft. POORLY SORTED SAND WITH GRAVEL:

Approximately 60 percent fine to medium sand; approximately 40 percent fine, moderately hard, subrounded gravel composed of sandstone; maximum size 50 mm.

IN PLACE CONDITIONS: Eolian sands and silts loosely stratified dry, buff to tan.

LAB TEST DATA: 47% sand, 45% gravel, 8% fines, PI=NP, Water content – 1.8%. Laboratory Classification – Poorly Sort Sand with Silt and Gravel (SP-SM)g

Bureau of Reclamation LOG OF TEST PIT Hole No. TP12-03

AREA DESIGNATION: Pasture Borrow

COORDINATES: N3996136, E481216

APPROX. DIMENSIONS: 11 x 5 x 9.5 ft. deep

METHOD OF EXPLORATION: Back Hoe LOGGED BY: Robert Lung P.G.

DATE(S) LOGGED: 8-30-12

CLASSIFICATION

GROUP

SYMBOL

CLASSIFICATION AND DESCRIPTION OF MATERIAL

(SEE USBR 5000, 5005)

% PLUS 3-INCH

BY VOLUME

3-5 inch

5–12 inch

Plus inch

No Sample Collected

1.5 ft.

0.0 to 1.5 ft. SILTY SAND WITH GRAVEL: Approximately 60 percent predominately fine sand; approximately 25 percent non plastic silty fines, low dry strength, moderate dilatancy, and low toughness;

approximately 15 percent fine, moderately hard, subrounded gravel composed of sandstone; maximum sixe 30 mm.

IN PLACE CONDITIONS: Eolian sands and silts loosely stratified, dry, tan to buff.

9.5 ft.

1.5 to 9.5 ft. POORLY SORTED SAND WITH GRAVEL:

Approximately 50 percent fine to medium sand; approximately 50 percent fine, moderately hard, subrounded gravel composed of sandstone; maximum size 50 mm.

IN PLACE CONDITIONS: Eolian sands and gravels loosely stratified dry, buff to tan.

LAB TEST DATA: 50% sand, 42% gravel, 8% fines, PI=NP, Water content – 1.0%. Laboratory Classification – Poorly Sort Sand with Silt

Bureau of Reclamation LOG OF TEST PIT Hole No. TP12-04

AREA DESIGNATION: Pasture Borrow

COORDINATES: N3996147, E481280

APPROX. DIMENSIONS: 11 x 6 x 11 ft. deep

METHOD OF EXPLORATION: Back Hoe LOGGED BY: Robert Lung P.G.

DATE(S) LOGGED: 8-30-12

CLASSIFICATION

GROUP

SYMBOL

CLASSIFICATION AND DESCRIPTION OF MATERIAL

(SEE USBR 5000, 5005)

% PLUS 3-INCH

BY VOLUME

3-5 inch

5–12 inch

Plus inch

6.0 ft.

0.0 to 6.0 ft. SILTY SAND WITH GRAVEL: Approximately 60 percent predominately fine sand; approximately 25 percent non plastic silty fines, low dry strength, moderate dilatancy, and low toughness;

approximately 15 percent fine, moderately hard, subrounded gravel composed of sandstone; maximum sixe 30 mm.

IN PLACE CONDITIONS: Eolian sands and silts loosely stratified, dry, tan to buff.

LAB TEST DATA: 77% sand, 11% gravel, 12% fines, PI=NP, Water content – 1.0%. Laboratory Classification – Poorly Sort Sand with Silt

11.0 ft.

6.0 to 11.0 ft. POORLY SORTED SAND WITH GRAVEL:

Approximately 50 percent fine to medium sand; approximately 50 percent fine, moderately hard, subrounded gravel composed of sandstone; maximum size 50 mm.

IN PLACE CONDITIONS: Eolian sands and gravels loosely stratified dry, buff to tan.

LAB TEST DATA: 62% sand, 33% gravel, 5% fines, PI=NP, Water content – 1.9%. Laboratory Classification – Poorly Sort Sand with Silt

Bureau of Reclamation LOG OF TEST PIT Hole No. TP12-05

AREA DESIGNATION: Pasture Borrow

COORDINATES: N3996114, E481313

APPROX. DIMENSIONS: 11 x 5 x 9 ft. deep

METHOD OF EXPLORATION: Back Hoe LOGGED BY: Robert Lung P.G.

DATE(S) LOGGED: 8-30-12

CLASSIFICATION

GROUP

SYMBOL

CLASSIFICATION AND DESCRIPTION OF MATERIAL

(SEE USBR 5000, 5005)

% PLUS 3-INCH

BY VOLUME

3-5 inch

5–12 inch

Plus inch

3.0 ft.

0.0 to 3.0 ft. SILTY SAND WITH GRAVEL: Approximately 60 percent predominately fine sand; approximately 25 percent non plastic silty fines, low dry strength, moderate dilatancy, and low toughness;

approximately 15 percent fine, moderately hard, subrounded gravel composed of sandstone; maximum sixe 30 mm.

IN PLACE CONDITIONS: Eolian sands and silts loosely stratified, dry, tan to buff.

LAB TEST DATA: 48% sand, 28% gravel, 24% fines, PI=NP, Water content – 2.6%. Laboratory Classification – Silty Sand with Gravel

9.0 ft.

3.0 to 9.0 ft. POORLY SORTED SAND WITH GRAVEL:

Approximately 50 percent fine to medium sand; approximately 50 percent fine, moderately hard, subrounded gravel composed of sandstone; maximum size 50 mm.

IN PLACE CONDITIONS: Eolian sands and gravels loosely stratified dry, buff to tan.

LAB TEST DATA: 69% sand, 13% gravel, 18% fines, PI=NP, Water content – 0.0%. Laboratory Classification – Silty Sand SM

Bureau of Reclamation LOG OF TEST PIT Hole No. TP12-06

AREA DESIGNATION: Pasture Canyon Dam

COORDINATES: N3999048, E480583

DEPTH TO WATER: 9.0 ft. DATE: 8-30-12

METHOD OF EXPLORATION: Back Hoe LOGGED BY: Robert Lung P.G.

DATE(S) LOGGED: 8-30-12

CLASSIFICATION

GROUP

SYMBOL

CLASSIFICATION AND DESCRIPTION OF MATERIAL

(SEE USBR 5000, 5005)

% PLUS 3-INCH

BY VOLUME

3-5 inch

5–12 inch

Plus inch

0.0 to 3.0 ft. SILTY SAND: Approximately 60 percent predominately fine sand; approximately 40 percent non plastic silty fines, low dry strength, moderate dilatancy, and low toughness; trace of fine, moderately hard, subrounded gravel composed of sandstone; maximum sixe 30 mm.

IN PLACE CONDITIONS: Fluvial sands and silts loosely stratified, dry, tan to buff.

LAB TEST DATA: 71% sand, 29% fines, PI=NP, Water content – 8.1%. Laboratory Classification – Silty Sand SM

GEOLOGIC INTERPRETATION: Fluvial deposits

(CL)s s(CL)

Two 50 lbs sacks

9.0 ft.

3.0 to 9.0 ft. SANDY LEAN CLAY: Approximately 70 percent fines with low plasticity, moderate dry strength, low to medium toughness;

about 30 percent fine sand.

IN PLACE CONDITIONS: Fluvial back water sediments, damp to wet, dark brown to black.

LAB TEST DATA:

3.0 - 6.0: 53% sand, 47% fines, PI=3.6, LL=21.2, Water Content – 19.5%. Laboratory Classification – (SM)

6.0 – 9.0: 58% fines, 42% sand, PI=20.8, LL=39.9, Water Content – 34.6%. Laboratory Classification – s(CL)

GEOLOGIC INTERPRETATION: Fluvial back water sediments

AREA DESIGNATION: Pasture Borrow

COORDINATES: N3996114, E481313

DEPTH TO WATER: 9.0 ft. DATE: 8-30-12

METHOD OF EXPLORATION: Back Hoe LOGGED BY: Robert Lung P.G.

DATE(S) LOGGED: 8-30-12

(CL)s

11ft.

5ft.

9.0ft.

Profile

Plan

AREA DESIGNATION: Pasture Borrow

COORDINATES: N3996114, E481313

METHOD OF EXPLORATION: Back Hoe

(SP)g

11ft.

5ft.

9.0ft.

Bureau of Reclamation LOG OF TEST PIT Hole No. TP12-04

AREA DESIGNATION: Pasture Borrow

COORDINATES: N3996147, E481280

APPROX. DIMENSIONS: 11 x 6 x 11 ft. deep

METHOD OF EXPLORATION: Back Hoe

6.0 ft.

(SP)g

11ft.

6ft.

11.0ft.

Bureau of Reclamation LOG OF TEST PIT Hole No. TP12-03

AREA DESIGNATION: Pasture Borrow

COORDINATES: N3996136, E481216

METHOD OF EXPLORATION: Back Hoe

1.5 ft.

(SP)g

11ft.

5ft.

9.5ft.

Bureau of Reclamation LOG OF TEST PIT Hole No. TP12-02

AREA DESIGNATION: Pasture Borrow

COORDINATES: N3996187, E481174

METHOD OF EXPLORATION: Back Hoe

0.5 ft.

(SP)g

10ft.

5ft.

7.0ft.

Bureau of Reclamation LOG OF TEST PIT Hole No. TP12-01

AREA DESIGNATION: Pasture Borrow

COORDINATES: N3996195, E481246

METHOD OF EXPLORATION: Back Hoe

2.5 ft.

(SP)g

11ft.

5ft.

10ft.