Attachment_3_00_00_02A_Dwgs-B_Geology_and_Logs.pdf

G1

Maxar, R09 CPN | Date Saved: 8/31/2023 | File Path: \\ibr1pnrfp08\PNGIS\CPNGIS\_Region_Office\RegionOffice_CPN\7GEOLOGY_DRILL\Topock Marsh\TopockMarshDrillHoles.aprx

C olorado

R iver

C olorado

R iver

C olorado

R iver

C olorado

R iver

M o h a v e V a lle y D r

Lake Mead National

Recreation Area

Mojave National Preserve

Lake Havasu City

CA

NV

AZ

TOPOCK MARSH DRILL HOLE LOCATION

0 250 500125 Feet

DH-22-1

Approximate Drill Hole Location

2021 Drill Holes

-0

9-

T

:\2

0\

\G eo lo gy W el l L og s\

Q ui ck Lo g\ To po ck

_D H

-2 1-

1.

bo r

Imperial National Wildlife Refuge Imperial Ponds Conservation Area

Technical Support Office Yuma Area Office

Bureau of Reclamation

DH-21-1 55-234411

(Page 1 of 4)

Date Started : 5/5/2021 Date Completed : 5/5/2021 Hole Diameter : 8" Drilling Method : Hollow-Stem Auger CME-75 Sampling Method : Returns & Split Spoon

Project : Topock Marsh Pumping Plant Lat. NAD83 : 34.807570 Long. NAD83 : -114.574111 Gradations By : Alan Rodriguez Logged By : Teigan Struck

D ep th in

F ee t

Surf.

Elev.

470.10ft

470.1

465.1

460.1

U

SC

S

SP

SP

SP

SP

SP

SP

SP

G R

AP

H

IC

DESCRIPTION

Sampler Type SS Split Spoon XXXX Interval

0 - 1.5' Poorly Graded Sand (SP), Fine grained poorly graded sand, some gravel; 5.4% gravel up to 1", 91.9% sand, 2.7% fines.

2.5 - 4.0' Poorly Graded Sand (SP) Light brown, dry; 4.7% gravel - Max 3/4", 92.6% sand, 2.7% fines.

5.0 - 6.5' Poorly Graded Sand (SP);

4.6% Gravel - Max 3/4", 93.7% Sand, 1.8% Fines.

7.5 - 9.0' Poorly Graded Sand (SP);

Small sample collected; trace Gravel, 97.6%, 2.0% Fines

10.0 - 11.5' Poorly Graded Sand (SP); Damp, poorly graded fine sand; Corrosivity sample

12.5 - 14.0' Poorly Graded Sand (SP); Mostly fine with some coarse sand and fine gravel; 3.8% Gravel, 94.7% Sand, 1.5% Fines

Saturated, start drill mud

14.3 - 15.8' Poorly Graded Sand (SP); Mostly fine to coarse sand, trace gravel; 3.0% gravel, Max 3/4", 95.4% Sand, 1.6% fines

Bl ow s / 1

F t

WOH

Sa m pl e

In t.

X

XX

X

REMARKS

Driller: Aaron Tellez Helpers: EZ Lopez, Matt Boyd Engineer: Jan Miller Hydrologist: Teigan Struck

Land Surface Elevation = 470.1 Easting: 721906.62 (m) NAD-83 Northing: 3854386.20 (m) Zone 11 Cadastral: C(16-22)1bbb (GSRM) Top of PVC Pipe = 473.49 ft Vertical Datum: NGVD-29

As-built:

Back filled with native material to

29.6 Placed silica sand from 29.6 to

28.6 feet. Installed 10 feet of 20-slot 2-inch PVC screen with a 0.37' perforated spearpoint tip and 21.95 feet of 2-inch PVC blank capped with a 2" PVC coupling extending 3.35 feet above land surface. Placed silica sand during auger extraction to a depth of

17.2 feet below land surface. Added

7.5 bags of bentonite pellets to within 2 feet below land surface. Installed 10 feet of 3" steel casing projecting about 1 foot foot above land surface. Placed 1 bag portland cement to surface.

Installed a 5' X 6" protective casing with locking lid projecting about 3.5 feet above land surface. Built a 2X2 foot concrete pad to seal and cement surface casing. Protective casing painted yellow with reflective tape.

Materials Used:

5 - 50-lb bags of Pioneer Silica Sand 10x20

7.5 - 50-lb bags of bentonite hole plug

Developed well from 5:35 pm to 5.56 pm.

Field EC = 916.2 microsiemens Temp = 18.8 degrees C at 5:53 pm

Tape reading = 15.07' 5/7/2021

Elev.: 473.5 Well: DH-21-1

Concrete pad

Bentonite Pellets

Portland Cement

2" PVC Blank

6" steel protective casing

3" steel casing

9-

T

:\2

0\

\G eo lo gy W el l L og s\

Q ui ck Lo g\ To po ck

_D H

-2 1-

1.

bo r

Imperial National Wildlife Refuge Imperial Ponds Conservation Area

Technical Support Office Yuma Area Office

Bureau of Reclamation

DH-21-1 55-234411

(Page 2 of 4)

Date Started : 5/5/2021 Date Completed : 5/5/2021 Hole Diameter : 8" Drilling Method : Hollow-Stem Auger CME-75 Sampling Method : Returns & Split Spoon

Project : Topock Marsh Pumping Plant Lat. NAD83 : 34.807570 Long. NAD83 : -114.574111 Gradations By : Alan Rodriguez Logged By : Teigan Struck

D ep th in

F ee t

Surf.

Elev.

470.10ft

455.1

450.1

445.1

U

SC

S

SP

SP

SP

SP

SP

SP

SP

G R

AP

H

IC

DESCRIPTION

Sampler Type SS Split Spoon XXXX Interval

17.2 - 18.7' Poorly Graded Sand (SP); Clean fine sand, light brown, some mica streaks; 0.0% gravel, 98.9% Sand, 1.1% Fines

19.4 - 20.9' Poorly graded fine sand (SP) light brown.

Corrosivity sample

22.5 - 24.0' Poorly Graded Sand (SP); Mostly fine sand with some coarse sand, trace clay; 0.4% gravel, 96.3% Sand, 3.2% fines

24.5 - 26.0' Poorly graded Sand (SP); some silt, light brown; 0.0% Gravel, 95.8% Sand, 4.2% Fines.

27.3 - 28.8' Poorly Graded Sand (SP); Fine, poorly graded brown sand, trace fine gravel; 0.7% Gravel, 95.2% Sand, 4.1% Fines.

29.2 - 30.7' Poorly Graded Sand (SP) Coarse to fine poorly graded sand.

Corrosivity sample

Bl ow s / 1

F t

Sa m pl e

In t.

X

XX

X

REMARKS

Elev.: 473.5 Well: DH-21-1

Pioneer Silica Sand

Bentonite Pellets

2" PVC Blank

2" 10-slot PVC Screen

2" Perforated PVC Spearpoint

9-

T

:\2

0\

\G eo lo gy W el l L og s\

Q ui ck Lo g\ To po ck

_D H

-2 1-

1.

bo r

Imperial National Wildlife Refuge Imperial Ponds Conservation Area

Technical Support Office Yuma Area Office

Bureau of Reclamation

DH-21-1 55-234411

(Page 3 of 4)

Date Started : 5/5/2021 Date Completed : 5/5/2021 Hole Diameter : 8" Drilling Method : Hollow-Stem Auger CME-75 Sampling Method : Returns & Split Spoon

Project : Topock Marsh Pumping Plant Lat. NAD83 : 34.807570 Long. NAD83 : -114.574111 Gradations By : Alan Rodriguez Logged By : Teigan Struck

D ep th in

F ee t

Surf.

Elev.

470.10ft

440.1

435.1

430.1

U

SC

S

SP

SP

SP-SM

SM

G R

AP

H

IC

DESCRIPTION

Sampler Type SS Split Spoon XXXX Interval

34.3 - 35.8' Poorly Graded Sand (SP); Grey-brown, fine sand. 0.0% Gravel, 95.8% Sand, 4.2% Fines.

39.5 - 41.0' Poorly Graded Sand with Silt and Gravel (SP-SM); Fine to coarse sand with gravel and silt;

24.9% Gravel, 70.2% Sand, 4.8% Fines.

44.0 - 45.5' Silty Sand (SM); 44.0 - 44.6' Well graded fine to coarse sand, 44.6 - 45.5' Silty Sand; 0.6% Gravel, 82.6% Sand, 16.7% Fines.

Bl ow s / 1

F t

Sa m pl e

In t.

X

XX

X

REMARKS

Elev.: 473.5 Well: DH-21-1

9-

T

:\2

0\

\G eo lo gy W el l L og s\

Q ui ck Lo g\ To po ck

_D H

-2 1-

1.

bo r

Imperial National Wildlife Refuge Imperial Ponds Conservation Area

Technical Support Office Yuma Area Office

Bureau of Reclamation

DH-21-1 55-234411

(Page 4 of 4)

Date Started : 5/5/2021 Date Completed : 5/5/2021 Hole Diameter : 8" Drilling Method : Hollow-Stem Auger CME-75 Sampling Method : Returns & Split Spoon

Project : Topock Marsh Pumping Plant Lat. NAD83 : 34.807570 Long. NAD83 : -114.574111 Gradations By : Alan Rodriguez Logged By : Teigan Struck

D ep th in

F ee t

Surf.

Elev.

470.10ft

425.1

420.1

415.1

U

SC

S

SM

(SP)g

(SP-SM)g

G R

AP

H

IC

DESCRIPTION

Sampler Type SS Split Spoon XXXX Interval

49.0 - 50.5' Poorly Graded Sand with Gravel (SP); Well graded sand with fines and gravel; 14.5% Gravel, 83.0% Sand, 2.6% Fines

Drill bit stuck @ 54'

54.5 - 56.0' Poorly Graded Sand with Silt and Gravel (SP-SM); SP with gravel to well graded gravel fine to coarse max 1 1/2"; 16.3% Gravel, 78.5% Sand, 5.2% Fines.

56.0' Bottom of Hole

Bl ow s / 1

F t

Sa m pl e

In t.

X

XX

X

REMARKS

Elev.: 473.5 Well: DH-21-1

9-

T

:\2

0\

\G eo lo gy W el l L og s\

Q ui ck Lo g\ To po ck

_D H

-2 1-

2.

bo r

Imperial National Wildlife Refuge Imperial Ponds Conservation Area

Technical Support Office Yuma Area Office

Bureau of Reclamation

DH-21-2 55-234412

(Page 1 of 4)

Date Started : 5/6/2021 Date Completed : 5/6/2021 Hole Diameter : 8" Drilling Method : Hollow-Stem Auger CME-75 Sampling Method : Returns & Split Spoon

Project : Topock Marsh Pumping Plant Lat. NAD83 : 34.808028 Long. NAD83 : -114.574195 Gradations By : Alan Rodriguez Logged By : Teigan Struck

D ep th in

F ee t

Surf.

Elev.

469.20ft

469.2

464.2

459.2

U

SC

S

SP

SP

SP

SP

SP

SP

SP

G R

AP

H

IC

DESCRIPTION

Sampler Type SS Split Spoon XXXX Interval

0 - 1.5' Poorly Graded Sand (SP), Light brown, loose, dry sand, some gravel; 3.4%, 92.1% sand, 4.4% fines.

2.5 - 4.0' Poorly Graded Sand (SP) Light brown, dry, loose with fine gravel; 8.2% gravel, 89.9% sand, 1.9% fines.

5.0 - 6.5' Poorly Graded Sand (SP);

5.0-5.55 SP with gravel, 5.55 - 6.5 poorly graded fine sand; 6.0% Gravel, 92.6% Sand, 1.4% Fines.

7.5 - 9.0' Poorly Graded Sand (SP);

7.5 - 7.65 SP with fine gravel, 7.65 -

9.0 light brown fine sand; 1.2% Gravel, 97.9%, 0.9% Fines

10.0 - 11.5' Poorly Graded Sand (SP); Clean fine to medium fine sand with trace gravel, saturated @ ~11.0'; 1.5% Gravel, 97.6% Sand, 0.9% Fines Start Drill Mud

12.5 - 14.0' Poorly Graded Sand (SP); Clean, fine, sand with trace fine gravel; 0.6% Gravel, 96.5% Sand, 2.9% Fines

14.3 - 15.8' Poorly Graded Sand (SP); Grey/brown, fine to coarse, some fine gravel.

Corrosivity Sample

Bl ow s / 1

F t

Sa m pl e

In t.

X

XX

X

REMARKS

Driller: Aaron Tellez Helpers: EZ Lopez, Matt Boyd Engineer: Jan Miller Hydrologist: Teigan Struck

Land Surface Elevation = 469.2 Easting: 721897.71 (m) NAD-83 Northing: 3854436.76 (m) Zone 11 Cadastral: C(16-22)1bbb (GSRM) Top of PVC Pipe = 472.12 ft Vertical Datum: NGVD-29

As-built:

Back filled with native material to 39.8 Placed silica sand from 39.8 to 38.8 feet. Installed 10 feet of 20-slot 2-inch PVC screen with a 0.37' perforated spearpoint tip and 32.12 feet of 2-inch PVC blank capped with a 2" PVC coupling extending 3.32 feet above land surface. Placed silica sand during auger extraction to a depth of

27.8 feet below land surface. Added 10 bags of bentonite pellets to within 2 feet below land surface. Installed 10 feet of 3" steel casing projecting about 1 foot foot above land surface. Placed 1 bag portland cement to surface.

Installed a 5' X 6" protective casing with locking lid projecting about 3.5 feet above land surface. Built a 2X2 foot concrete pad to seal and cement surface casing. Protective casing painted yellow with reflective tape.

Materials Used:

4.5 - 50-lb bags of Pioneer Silica Sand 10x20 10 - 50-lb bags of bentonite hole plug

Developed well from 5:35 pm to 5.56 pm.

Field EC = 916.2 microsiemens Temp = 18.8 degrees C at 5:53 pm

Tape reading = 15.07' 5/7/2021

Elev.: 472.12 Well: DH-21-2

Concrete pad

Bentonite Pellets

Portland Cement

2" PVC Blank

6" steel protective casing

3" steel casing

9-

T

:\2

0\

\G eo lo gy W el l L og s\

Q ui ck Lo g\ To po ck

_D H

-2 1-

2.

bo r

Imperial National Wildlife Refuge Imperial Ponds Conservation Area

Technical Support Office Yuma Area Office

Bureau of Reclamation

DH-21-2 55-234412

(Page 2 of 4)

Date Started : 5/6/2021 Date Completed : 5/6/2021 Hole Diameter : 8" Drilling Method : Hollow-Stem Auger CME-75 Sampling Method : Returns & Split Spoon

Project : Topock Marsh Pumping Plant Lat. NAD83 : 34.808028 Long. NAD83 : -114.574195 Gradations By : Alan Rodriguez Logged By : Teigan Struck

D ep th in

F ee t

Surf.

Elev.

469.20ft

454.2

449.2

444.2

U

SC

S

SP

SP

SP

SP

SP

SP

SM

G R

AP

H

IC

DESCRIPTION

Sampler Type SS Split Spoon XXXX Interval

17.2 - 18.7' Poorly Graded Sand (SP); Grey/brown, clean fine sand;

0.0% gravel, 98.9% Sand, 1.1% Fines

19.2 - 20.7' Poorly graded fine sand (SP); Trace Gravel, 97.5% Sand, 2.3% Fines

22.0 - 23.5' Poorly Graded Sand (SP); Grey-brown fine sand with silt; 0.0% gravel, 99.0% Sand, 1.0% fines

24.3 - 25.8' Poorly graded Sand (SP); Grey-brown poorly graded sande with some fines; Trace Gravel, 97.2% Sand, 2.8% Fines.

27.2 - 28.7' Poorly Graded Sand (SP); 27.2 - 27.4' SP, brown, fine,

27.4 - 27.6' Black organics and grey P, 27.6 - 27.9' Grey SP, 27.9 - 28.7, light brown SP

Corrosivity Sample

29.2 - 30.7' Silty Sand (SM); 29.2 - 30.2' brown, fine silty sand, 30.2 - 30.7' black organics and grey SM;

0.0% Gravel, 87.0% Sand, 13.0% fines.

Bl ow s / 1

F t

Sa m pl e

In t.

X

XX

X

REMARKS

Elev.: 472.12 Well: DH-21-2

Pioneer Silica Sand

Bentonite Pellets

2" PVC Blank

2" 10-slot PVC Screen

9-

T

:\2

0\

\G eo lo gy W el l L og s\

Q ui ck Lo g\ To po ck

_D H

-2 1-

2.

bo r

Imperial National Wildlife Refuge Imperial Ponds Conservation Area

Technical Support Office Yuma Area Office

Bureau of Reclamation

DH-21-2 55-234412

(Page 3 of 4)

Date Started : 5/6/2021 Date Completed : 5/6/2021 Hole Diameter : 8" Drilling Method : Hollow-Stem Auger CME-75 Sampling Method : Returns & Split Spoon

Project : Topock Marsh Pumping Plant Lat. NAD83 : 34.808028 Long. NAD83 : -114.574195 Gradations By : Alan Rodriguez Logged By : Teigan Struck

D ep th in

F ee t

Surf.

Elev.

469.20ft

439.2

434.2

429.2

U

SC

S

SM

SW

SP-SM

G R

AP

H

IC

DESCRIPTION

Sampler Type SS Split Spoon XXXX Interval

34.0 - 35.5' Well graded sand with gravel (SW); 34.0 - 34.8' well graded sand with fine gravel, 34.8 - 35.5' SP brown, fine sand.

Corrosivity Sample

39.2 - 40.7' Poorly Graded Sand with Silt and Gravel (SP-SM); Fine to coarse sand with gravel and silt max 1 1/2", rock stuck in shoe;

16.0% Gravel, 79.2% Sand, 4.8% Fines.

Bottom of hole'

Bl ow s / 1

F t

Sa m pl e

In t.

X

XX

X

REMARKS

Elev.: 472.12 Well: DH-21-2

Pioneer Silica Sand

2" 10-slot PVC Screen

2" Perforated PVC Spearpoint

9-

T

:\2

0\

\G eo lo gy W el l L og s\

Q ui ck Lo g\ To po ck

_D H

-2 1-

2.

bo r

Imperial National Wildlife Refuge Imperial Ponds Conservation Area

Technical Support Office Yuma Area Office

Bureau of Reclamation

DH-21-2 55-234412

(Page 4 of 4)

Date Started : 5/6/2021 Date Completed : 5/6/2021 Hole Diameter : 8" Drilling Method : Hollow-Stem Auger CME-75 Sampling Method : Returns & Split Spoon

Project : Topock Marsh Pumping Plant Lat. NAD83 : 34.808028 Long. NAD83 : -114.574195 Gradations By : Alan Rodriguez Logged By : Teigan Struck

D ep th in

F ee t

Surf.

Elev.

469.20ft

424.2

419.2

414.2

U

SC

S

G R

AP

H

IC

DESCRIPTION

Sampler Type SS Split Spoon XXXX Interval

Bl ow s / 1

F t

Sa m pl e

In t.

X

XX

X

REMARKS

Elev.: 472.12 Well: DH-21-2

9-

T

:\2

0\

\G eo lo gy W el l L og s\

Q ui ck Lo g\ To po ck

_D H

-2 1-

3.

bo r

Imperial National Wildlife Refuge Imperial Ponds Conservation Area

Technical Support Office Yuma Area Office

Bureau of Reclamation

DH-21-3 55-234413

(Page 1 of 4)

Date Started : 5/4/2021 Date Completed : 5/4/2021 Hole Diameter : 8" Drilling Method : Hollow-Stem Auger CME-75 Sampling Method : Returns & Split Spoon

Project : Topock Marsh Pumping Plant Lat. NAD83 : 34.807969 Long. NAD83 : -114.572780 Gradations By : Alan Rodriguez Logged By : Teigan Struck

D ep th in

F ee t

Surf.

Elev.

470.39ft

470.39

465.39

460.39

U

SC

S

SP-SM

SP

SM

SP

SP

SP

SP

G R

AP

H

IC

DESCRIPTION

Sampler Type SS Split Spoon XXXX Interval

0 - 1.5' Poorly Graded Sand with Silt (SP-SM), Light brown, sine, silty sand with some rocks;

1.6%, 93.6% sand, 4.8% fines.

2.5 - 4.0' Poorly Graded Sand (SP) Light brown, dry, loose sand; trace gravel, 96.1% sand, 3.8% fines.

5.0 - 6.5' Silty Sand (SM); Fine silty sand with some gravel, light brown, dry; trace Gravel, 87.4% Sand, 12.4% Fines.

7.5 - 9.0' Poorly Graded Sand with Silt (SP-SM); FIne silty sand; trace Gravel, 88.7%, 11.1% Fines

10.0 - 11.5' Poorly Graded Sand (SP); SP-SM with a transition to SP at ~11.0'; 0.0% Gravel, 95.9% Sand, 4.1% Fines

12.2 - 13.8' Poorly Graded Sand (SP);

Saturated clean fine sand; 0.0% Gravel, 97.1% Sand, 2.9% Fines

2' heave cleared out, start drill mud.

14.6 - 16.1' Poorly Graded Sand (SP); Wet clean fine sand, slightly more coarse @ ~15.8'; 0.0% Gravel, 96.7% Sand, 3.3% Fines.

Bl ow s / 1

F t

Sa m pl e

In t.

X

XX

X

REMARKS

Driller: Aaron Tellez Helpers: EZ Lopez, Matt Boyd Engineer: Jan Miller Hydrologist: Teigan Struck

Land Surface Elevation = 470.39 Easting: 722027.40 (m) NAD-83 Northing: 3854433.37 (m) Zone 11 Cadastral: C(16-22)1bbb (GSRM) Vertical Datum: NGVD-29

Hole was back filled with native material to surface.

Blow Count Graph

10 50

9-

T

:\2

0\

\G eo lo gy W el l L og s\

Q ui ck Lo g\ To po ck

_D H

-2 1-

3.

bo r

Imperial National Wildlife Refuge Imperial Ponds Conservation Area

Technical Support Office Yuma Area Office

Bureau of Reclamation

DH-21-3 55-234413

(Page 2 of 4)

Date Started : 5/4/2021 Date Completed : 5/4/2021 Hole Diameter : 8" Drilling Method : Hollow-Stem Auger CME-75 Sampling Method : Returns & Split Spoon

Project : Topock Marsh Pumping Plant Lat. NAD83 : 34.807969 Long. NAD83 : -114.572780 Gradations By : Alan Rodriguez Logged By : Teigan Struck

D ep th in

F ee t

Surf.

Elev.

470.39ft

455.39

450.39

445.39

U

SC

S

SP

SP

SP

SM

SP-SM

SP

SP-SM

G R

AP

H

IC

DESCRIPTION

Sampler Type SS Split Spoon XXXX Interval

17.7 - 19.2' Poorly Graded Sand (SP); Fine sand, trace gravel, max 1/2"; 1.6% gravel, 94.3% Sand, 4.1% Fines

19.0 - 20.5' Poorly graded fine sand with Silt (SP-SM); Fine brown sand, some corase @ ~19.7, grey SP with thin organic layer ~20' back to brown. Trace Gravel, 93.9% Sand, 6.0% Fines

22.2 - 23.7' Silty Sand (SM); Grey-brown SP transition @ 22.45', organic layer @ 22.6', some gravel @ 22.9', trace gravel @ 23.7;

0.6% gravel, 86.9% Sand, 12.5% fines

24.5 - 26.0' Poorly graded Sand with Silt (SP-SM); Fine to medium fine sand, some coarse, grey, SM @ 25.8'; Trace Gravel, 93.0% Sand, 6.7% Fines.

27.1 - 28.6' Poorly Graded Sand with Silt (SP-SM); fine, grey brown sand until 28.2', then fine brown SP-SM; 0.8% Gravel, 91.6% Sand, 7.6% Fines.

29.3 - 30.8' Poorly Graded Sand with Silt (SP-SM); Fine grey sand; 0.0% Gravel, 95.4% Sand, 4.6% fines.

Bl ow s / 1

F t

Sa m pl e

In t.

X

XX

X

REMARKS

Blow Count

9-

T

:\2

0\

\G eo lo gy W el l L og s\

Q ui ck Lo g\ To po ck

_D H

-2 1-

3.

bo r

Imperial National Wildlife Refuge Imperial Ponds Conservation Area

Technical Support Office Yuma Area Office

Bureau of Reclamation

DH-21-3 55-234413

(Page 3 of 4)

Date Started : 5/4/2021 Date Completed : 5/4/2021 Hole Diameter : 8" Drilling Method : Hollow-Stem Auger CME-75 Sampling Method : Returns & Split Spoon

Project : Topock Marsh Pumping Plant Lat. NAD83 : 34.807969 Long. NAD83 : -114.572780 Gradations By : Alan Rodriguez Logged By : Teigan Struck

D ep th in

F ee t

Surf.

Elev.

470.39ft

440.39

435.39

430.39

U

SC

S

SP-SM

SP

SP

SM

G R

AP

H

IC

DESCRIPTION

Sampler Type SS Split Spoon XXXX Interval

34.5 - 36.0' Poorly Graded Sand (SP); SP fine sand with gravel, max 1" coarse and fine sand. 10.6% Gravel, 86.8% Sand, 2.6% Fines.

39.2 - 40.7' Poorly Graded Sand (SP); Grey well graded sand with fine to coarse gravel, layer of clay @ 30.6-30.7'; 11.2% Gravel, 87.5% Sand, 1.5% Fines.

43.6 - 45.1' Silty Sand (SM); Poorly graded fine sand, grey, some fine gravel @ 43.6 - 43.9'; 0.7% Gravel, 84.2% Sand, 15.1% Fines.

Bl ow s / 1

F t

Sa m pl e

In t.

X

XX

X

REMARKS

Blow Count

9-

T

:\2

0\

\G eo lo gy W el l L og s\

Q ui ck Lo g\ To po ck

_D H

-2 1-

3.

bo r

Imperial National Wildlife Refuge Imperial Ponds Conservation Area

Technical Support Office Yuma Area Office

Bureau of Reclamation

DH-21-3 55-234413

(Page 4 of 4)

Date Started : 5/4/2021 Date Completed : 5/4/2021 Hole Diameter : 8" Drilling Method : Hollow-Stem Auger CME-75 Sampling Method : Returns & Split Spoon

Project : Topock Marsh Pumping Plant Lat. NAD83 : 34.807969 Long. NAD83 : -114.572780 Gradations By : Alan Rodriguez Logged By : Teigan Struck

D ep th in

F ee t

Surf.

Elev.

470.39ft

425.39

420.39

415.39

U

SC

S

SM

SM

SC-SM

CL

G R

AP

H

IC

DESCRIPTION

Sampler Type SS Split Spoon XXXX Interval

49.6 - 51.1' Poorly Graded Sand with Silt and Gravel (SP-SM)g; Fine sand with fine to coarse gravel, max 1 1/2' stuck in shoe;

17.6% gravel, 77.8% Sand, 4.6% Fines.

54.3 - 55.8' Silty, Clayey Sand (SC-SM) 54.3 - 54.8' Fine to coarse sand, 54.8 - 55.8' Fat silt?

Grey hard, streaks of iron, orange and white;

5.1% Gravel, 60.4% Sand, 34.4% Fines.

59.6 - 61.1' Lean Clay with Sand (CL) 59.6 - 60.2' Hard clay with silt, grey and brown streaks, 60.2 - 61.1' silty sand; 0.0% Gravel, 19.4% Sand, 80.6% fines.

Bl ow s / 1

F t

Sa m pl e

In t.

X

XX

X

REMARKS

Blow Count

NR

SP

SP-SM

(SM)g

GP

(SM)g

(GP-GM)sc

SP

SP

(GP-GM)s

All measurements are in feet and are the same as reported by driller.

PURPOSE OF HOLE:

To gather geological and geotechnical data in support of the Topock Marsh Pumping Station Project

DRILL SETUP:

Setup adjacent to the existing Fire Break Canal Inlet

DRILLER:

Kyler Wallin

DRILLING EQUIPMENT:

CME Track Rig

DRILLING METHODS:

0.0-74.9': Advanced hole with 6.25-inch HSAs using a combination of a pilot bit and FADC sampler.

Sampled with SPT on designated intervals as indicated below along with the corresponding uncorrected N value.

0.0-7.4’: PILOT

7.4-8.9': SPT; N = 8

7.4-9.9': FADC

9.9-11.4': SPT; N = 3,

sank first 0.8’

9.9-12.4’: FADC

12.4-13.9': SPT; N = 14

12.4-14.9': FADC

14.9-16.4': SPT; N = 7,

sank first 0.1’

14.9-17.4': FADC

17.4-18.9': SPT; N = 19,

fine gravel

17.4-19.9': FADC

19.9-21.4': SPT; N = 31,

gravel

19.9-22.4': FADC

22.4-23.9': SPT; N = 33,

gravel

22.4-24.9’: FADC

24.9-26.4': SPT; N = 50+,

refusal at 26.3’

24.9-27.4': FADC

27.4-28.9': SPT; N = 11

27.4-29.9': FADC

29.9-31.4': SPT; N = 47

29.9-33.2': FADC

33.2-34.9': SPT

34.9-44.9’: PILOT

44.9-46.4': SPT, refusal at 45.9’

44.9-49.9': PILOT

49.9-51.4': SPT: N = 22

0.0 to 74.9 ft.:

UNDIFFERENTIATED FILL (FILL)

The Geologic Unit information below was provided to the CPN Regional Office by the Yuma Area Office.

Subsurface geologic units are not defined within the context of this log but likely represent Quaternary Alluvial deposits from the Colorado River. The Topock Marsh Pumping Station project site it situated along the active Colorado River channel. Surficial geological mapping of the Needles Quadrangle by the U.S Geological Survey in 2009 designates the sediments in the project site as Dredged sand excavated by the U.S Bureau of Reclamation between 1949 – 1953 during a channelization project (Malmon et al, 2009).

0.0 to 7.4 ft.: NO RECOVERY

7.4 to 9.9 ft.: POORLY GRADED SAND, SP:

About 95% fine to medium sand; about 5% fines;

maximum size, 1/2 inch; wet; light tan; no reaction with HCl.

9.9 to 17.4 ft.: POORLY GRADED SAND WITH SILT, SP-SM:

About 90% hard, subangular to subrounded, sand; about 10% non-plastic fines with rapid dilatancy; maximum size, 1 inch; wet; light tan; no reaction with HCl. Gravel at 17.3 ft.

LAB TEST DATA ON SAMPLE FROM 9.9 to 12.4: 96% sand, 4% non-plastic fines; Poorly Graded Sand, SP.

17.4 to 22.4 ft.: SILTY SAND WITH GRAVEL, (SM)g:

About 55% medium to fine, hard, subangular to subrounded, sand; about 30% fine to coarse, hard, subrounded gravel; about 15% non-plastic fines with rapid dilatancy; maximum size, 1.5 inches; wet; tan; no reaction with HCl.

LAB TEST DATA ON SAMPLE FROM 17.4 to 19.9:

84% sand, 10% gravel, 6% non-plastic fines; Poorly Graded Sand, SP.

22.4 to 24.9 ft.: POORLY GRADED GRAVEL, GP:

About 90% hard, subrounded gravel; about 10% fine to coarse, hard, subangular to subrounded, sand;

maximum size, 2 inch; wet; tan; no reaction with HCl.

24.9 to 27.4 ft.: SILTY SAND WITH GRAVEL, (SM)g:

About 35% fine to coarse, hard, angular to round gravel;

35% fine to coarse, hard, subangular to subrounded, sand; about 30% non-plastic fines with rapid dilatancy;

maximum size, 3.5 inches; wet; tan; no reaction with HCl.

LAB TEST DATA ON SAMPLE FROM 24.9 to 27.4:

51% gravel, 44% sand, 5% non-plastic fines; Poorly Graded Gravel with Silt and Sand, (GP-GM)s.

27.4 to 29.9 ft.: POORLY GRADED GRAVEL WITH SILT AND SAND AND COBBLES, (GP-GM)sc:

About 60% hard, angular to subrounded gravel; about 30% medium to coarse, hard, subangular to

FILL

Center column descriptors are defined in the Reclamation Engineering Geology Field manual, Volume 1, Second Edition, 1998.

The HSA size is 6.25-inch which cuts an outside diameter of 11-inches and provides a 6-inch diameter dry core.

DEPTH TO BEDROCK: NA

G E

O

LO

G

IC

U N

ITF

IE

LD

FADC = Flight Auger Dry Core HSA = Hollow Stem Auger MC = Moisture Content Recovery column reflects the SPT test recovery %.

Datum = WGS 84. coordinates and elevation are approximate and should not be used for design

DEPTH AND ELEV OF WATER

SHEET 1 OF 3

M C

ANGLE FROM HORIZONTAL: -90 AZIMUTH:

G R

A P

H

IC

H O

LE

C

O M

P

LE

T

IO

N

U S

C S

L A

B

NOTES

C

LA

S S

IF

IC

A T

IO

N

COMMENTS:

FEATURE: Topock Marsh

GROUND ELEVATION: 460.0

TOTAL DEPTH: 74.9

D E

P T

H

REVIEWED BY:

STATE: California

COORDINATES: N 34.8 E 114.6

PROJECT: USFWS Havasu National Wildlife Refuge

LEVEL AND DATE MEASURED: -0.4 (459.60) 12/11/2022

GEOLOGIC LOG OF DRILL HOLE NO. DH-22-1

BEGUN: 12/11/22 FINISHED: 12/15/23

R

E C

O V

E R

Y

HOLE LOGGED BY: A. Brusak

LOCATION: next to the Colorado River

S P

T

CLASSIFICATION

AND PHYSICAL CONDITION

U S

B R

_P N

_3 T

O P

O C

K S

O

IL

.G P

J U

S B

R _P

N .G

D T

/3

/2

:2

:5

P

M

(GM)s

(GP)s

NR

SP-SM

CH

(ML)s

SM

(ML)s

(CH)g

49.9-54.9’: FADC

54.9-56.3': SPT; N = 50+,

refusal at 55.3’

54.9-59.9’: FADC

59.9-61.4': SPT; N = 57

59.9-64.9': FADC

64.9-71.4': SPT; N = 50

69.9-74.9': FADC

Hole abandonment was completed using approximately 21 buckets of coated bentonite pellets from total depth to ground surface.

DRILLING CONDITIONS:

relatively easy drilling, some sand heave, and occasional gravel that slowed advancement

CASING RECORD:

Casing was not used.

FLUID COLOR:

N/A

FLUID RETURN:

N/A

WATER LEVEL DURING

DRILLING:

12/11/2022: 0.4 ft.

12/13/2022: 2.0 ft.

12/15/2022: 10.8 ft.

WATER LEVEL AFTER

DRILLING:

NA

DRILLING TIME:

HOLE COMPLETION:

Hole abandoned with 21 buckets of coated bentonite pellets from TD to 23.0', then 98 gallons of grout from 23.0' to ground surface.

subrounded, sand; about 10% non-plastic fines with rapid dilatancy; maximum size, 3.5 inches; wet; tan;

20% (by volume) 3 to 5 inch, hard, subangular to subrounded cobbles; no reaction with HCl.

29.9 to 33.2 ft.: SILTY GRAVEL WITH SAND, (GM)s:

About 45% medium to coarse hard, subangular to round gravel; about 30% non-plastic fines with rapid dilatancy;

about 25% fine to coarse, hard, subangular to subrounded, sand; maximum size, 3 inches; wet; tan; no reaction with HCl.

33.2 to 34.9 ft.: POORLY GRADED GRAVEL WITH SAND, (GP)s:

About 80% hard, angular to round gravel; about 15% fine to coarse, hard, subangular to subrounded, sand;

about 5% fines; maximum size, 3 inches; wet; tan; no reaction with HCl.

34.9 to 49.9 ft. NO RECOVERY

49.9 to 50.6 ft.: POORLY GRADED SAND WITH SILT, SP-SM:

About 85% hard, subrounded to rounded, sand; about 10% non-plastic fines with rapid dilatancy; about 5% hard, subrounded gravel; wet; tan; no reaction with HCl.

50.6 to 52.0 ft.: FAT CLAY, CH:

About 90% plastic fines with no dilatancy; about 10% hard, subangular to subrounded, sand; maximum size, coarse sand; very hard consistency; wet; tan and rust orange; no reaction with HCl.

LAB TEST DATA ON SAMPLE FROM 50.9 to 52.0: 82 % plastic fines, 11% gravel, 7% sand; MC = 29.9%, PI = 47%, LL = 63%, Fat Clay with Gravel (CH)g.

52.0 to 54.9 ft.: SILT WITH SAND, (ML)s:

About 80% non-plastic fines with rapid dilatancy,; about 20% fine to coarse, hard, subangular to subrounded, sand; maximum size, coarse sand; wet; tan; no reaction with HCl.

54.9 to 55.9 ft.: SILTY SAND, SM:

About 70% fine to coarse, hard, subangular to subrounded, sand; about 30% non-plastic fines;

maximum size, coarse sand; wet; tan; no reaction with HCl.

55.9 to 60.4 ft.: SILT WITH SAND, (ML)s:

About 80% non-plastic fines; about 20% fine to medium, hard, subangular, sand; maximum size, coarse sand;

soft to firm consistency; wet; tan grading to gray in bottom foot; no reaction with HCl.

60.4 to 64.4 ft.: FAT CLAY, CH:

About 100% fines with high toughness; firm consistency;

wet; tan; no reaction with HCl.

LAB TEST DATA ON SAMPLE FROM 60.4 to 64.4:

83% plastic fines, 17% sand; MC = 29.4%, PI = 35.0%, FILL

DEPTH TO BEDROCK: NA

G E

O

LO

G

IC

U N

ITF

IE

LD

DEPTH AND ELEV OF WATER

SHEET 2 OF 3

M C

ANGLE FROM HORIZONTAL: -90 AZIMUTH:

G R

A P

H

IC

H O

LE

C

O M

P

LE

T

IO

N

U S

C S

L A

B

NOTES

C

LA

S S

IF

IC

A T

IO

N

COMMENTS:

FEATURE: Topock Marsh

GROUND ELEVATION: 460.0

TOTAL DEPTH: 74.9

D E

P T

H

REVIEWED BY:

STATE: California

COORDINATES: N 34.8 E 114.6

PROJECT: USFWS Havasu National Wildlife Refuge

LEVEL AND DATE MEASURED: -0.4 (459.60) 12/11/2022

GEOLOGIC LOG OF DRILL HOLE NO. DH-22-1

BEGUN: 12/11/22 FINISHED: 12/15/23

R

E C

O V

E R

Y

HOLE LOGGED BY: A. Brusak

LOCATION: next to the Colorado River

S P

T

CLASSIFICATION

AND PHYSICAL CONDITION

U S

B R

_P N

_3 T

O P

O C

K S

O

IL

.G P

J U

S B

R _P

N .G

D T

/3

/2

:2

:5

CH

(ML)s

ML

(ML)s

(CH)s

SM

LL = 54%, Fat Clay with Sand (CH)s.

64.4 to 64.9 ft.: SILT WITH SAND, (ML)s:

About 75% non-plastic fines; about 25% fine, hard, subangular to subrounded, sand; maximum size, coarse sand; soft to firm consistency; wet; tan; no reaction with HCl.

64.9 to 69.9 ft.: SILT, ML:

About 90% fines with low toughness, slow dilatancy;

about 10% fine, hard, subangular to subrounded, sand;

maximum size, coarse sand; wet; tan; no reaction with HCl.

LAB TEST DATA ON SAMPLE FROM 64.9 to 69.9:

64% sand, 36% non-plastic fines; MC = 26.0, Silty Sand

(SM).

69.9 to 74.9 ft.: SILT WITH SAND, (ML)s:

About 85% fines with low plasticity, slow dilatancy;

about 15% fine sand; maximum size, fine sand; wet; tan;

no reaction with HCl. Lense of clay with medium plasticity and medium toughness from 70.4 to 70.7.

Total depth = 74.9 ft.

BOTTOM OF HOLE

FILL

DEPTH TO BEDROCK: NA

G E

O

LO

G

IC

U N

ITF

IE

LD

DEPTH AND ELEV OF WATER

SHEET 3 OF 3

M C

ANGLE FROM HORIZONTAL: -90 AZIMUTH:

G R

A P

H

IC

H O

LE

C

O M

P

LE

T

IO

N

U S

C S

L A

B

NOTES

C

LA

S S

IF

IC

A T

IO

N

COMMENTS:

FEATURE: Topock Marsh

GROUND ELEVATION: 460.0

TOTAL DEPTH: 74.9

D E

P T

H

REVIEWED BY:

STATE: California

COORDINATES: N 34.8 E 114.6

PROJECT: USFWS Havasu National Wildlife Refuge

LEVEL AND DATE MEASURED: -0.4 (459.60) 12/11/2022

GEOLOGIC LOG OF DRILL HOLE NO. DH-22-1

BEGUN: 12/11/22 FINISHED: 12/15/23

R

E C

O V

E R

Y

HOLE LOGGED BY: A. Brusak

LOCATION: next to the Colorado River

S P

T

CLASSIFICATION

AND PHYSICAL CONDITION

U S

B R

_P N

_3 T

O P

O C

K S

O

IL

.G P

J U

S B

R _P

N .G

D T

/3

/2

:2

:5

To po ck M ar sh F

ER

Sa m pl ed

B y:

T . S tr uc k an d J.

M ill er

Be lo w a re m oi st ur e co nt en ts o f s am pl es n ot a cc om pa ni ed b y gr ad at io n sa m pl es

Sa m pl e Da te Bo re ho le N um be r

Sa m pl e De pt h

M oi st ur e Co nt en t 5/ 5/

DH

‐2 1‐

.0 '‐1

1.

5'

5.

8%

5/ 5/

DH

‐2 1‐

.4 '‐2

0.

9'

.7

5/ 5/

DH

‐2 1‐

.2 '‐3

0.

7'

.2

5/ 6/

DH

‐2 1‐

.3 '‐1

5.

8'

.4

5/ 6/

DH

‐2 1‐

.2 '‐2

8.

7'

.5

5/ 6/

DH

‐2 1‐

.0 '‐3

5.

5'

.7

Ta bl e 1.

ck M ar sh

P um pi ng

P la nt F

ER

D

H -2

1-

0' to

.5

U ni fie d

So il

C la ss ifi ca tio n:

SP

P oo rly G ra de d Sa nd Sa m pl e C ol le ct ed b y:

T.

S tru ck

/J . M ille r

5.

G ra ve l M ax im um S iz e:

1" Sp ec ifi c G ra vi ty

C U

2.

D in m m

.9

S an d

M oi st ur e C on te nt

Pl us

N o.

C C

0.

D in m m

2.

F in es

Li qu id L im it:

M in us N o.

D in m m

O ve rs iz e Pl as tic ity In de x:

D in m m

D in m m

0.

0.

/0

5/

0.

0.

9% 0.

0.

0.

0.

0.

0.

0.

0.

.8

.8

.6

.9

.4

.5

.4

9.

2.

010203040506070809010

PERCENT RETAINED (BY WEIGHT)

PERCENT PASSING (BY WEIGHT)

P A

R T

IC

L

E S

IZ

E

I N

M

IL

L

IM

E T

E R

S

G R

A

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S

IZ

E D

IS

T

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IB

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N

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EV

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AN

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IS

H

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A N

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IS

BO

U

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G R

AV

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C O

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FI

N

E

SA

N

D

C O

AR

SE

M

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FI

N

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FI

N

ES

6" 3"

1/

2" 3/

4" 3/

8" #4

#1

#8 #3

#1

#4

#5

#1

#2

.5

9.

4.

2.

1.

.6

.4

.3 .1

.0

.0

.0

.0

.0

.0

.0

0 10 20 30 40 50 60 70 80 90 10

M

IN

M

IN

M

IN

M

IN

H

R

M

IN

H R

M

IN

TI

M

E R

EA

D

IN

G

S

SI

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IN

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C

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U .S

. S

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O

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N

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G

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C H

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U

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TA

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AR

D S

IE

VE

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M

BE

R S ck M ar sh

P um pi ng

P la nt F

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D

H -2

1-

2.

5' to

U ni fie d

So il

C la ss ifi ca tio n:

SP

P oo rly G ra de d Sa nd Sa m pl e C ol le ct ed b y:

T.

S tru ck

/J . M ille r

4.

G ra ve l M ax im um S iz e:

3/ 4"

Sp ec ifi c

G ra vi ty

C

U

2.

D in m m

.6

S an d

M oi st ur e C on te nt

Pl us

N o.

C C

0.

D in m m

2.

F in es

Li qu id L im it:

M in us N o.

D in m m

O ve rs iz e Pl as tic ity In de x:

D in m m

D in m m

0.

0.

/0

5/

0.

1.

2% 0.

0.

0.

0.

0.

0.

0.

0.

.4

.3

.5

.8

.6

.8

9.

2.

010203040506070809010

PERCENT RETAINED (BY WEIGHT)

PERCENT PASSING (BY WEIGHT)

P A

R T

IC

L

E S

IZ

E

I N

M

IL

L

IM

E T

E R

S

G R

A

IN

S

IZ

E D

IS

T

R

IB

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EV

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AN

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YS

IS

H

YD

R

O M

ET

ER

A N

AL

YS

IS

BO

U

LD

ER

S C

O

BB

LE

S

G R

AV

EL

C O

AR

SE

FI

N

E

SA

N

D

C O

AR

SE

M

ED

IU

M

FI

N

E

FI

N

ES

6" 3"

1/

2" 3/

4" 3/

8" #4

#1

#8 #3

#1

#4

#5

#1

#2

.5

9.

4.

2.

1.

.6

.4

.3 .1

.0

.0

.0

.0

.0

.0

.0

0 10 20 30 40 50 60 70 80 90 10

M

IN

M

IN

M

IN

M

IN

H

R

M

IN

H R

M

IN

TI

M

E R

EA

D

IN

G

S

SI

ZE

IN

IN

C

H

ES

U .S

. S

TA

N D

AR

D

S

IE

VE

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PE

N

IN

G

IN

IN

C H

ES

U

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TA

N

D

AR

D S

IE

VE

N U

M

BE

ck M ar sh

P um pi ng

P la nt F

ER

D

H -2

1-

5' to

.5

U ni fie d

So il

C la ss ifi ca tio n:

SP

P oo rly G ra de d Sa nd Sa m pl e C ol le ct ed b y:

T.

S tru ck

/J . M ille r

4.

G ra ve l M ax im um S iz e:

3/ 4"

Sp ec ifi c

G ra vi ty

C

U

2.

D in m m

.7

S an d

M oi st ur e C on te nt

Pl us

N o.

C C

0.

D in m m

1.

F in es

Li qu id L im it:

M in us N o.

D in m m

O ve rs iz e Pl as tic ity In de x:

D in m m

D in m m

0.

0.

/0

5/

0.

1.

2% 0.

0.

0.

0.

0.

0.

0.

0.

.1

.4

.3

.8

.2

.8

9.

1.

010203040506070809010

PERCENT RETAINED (BY WEIGHT)

PERCENT PASSING (BY WEIGHT)

P A

R T

IC

L

E S

IZ

E

I N

M

IL

L

IM

E T

E R

S

G R

A

IN

S

IZ

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IS

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IS

H

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A N

AL

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IS

BO

U

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O

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LE

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AR

SE

FI

N

E

SA

N

D

C O

AR

SE

M

ED

IU

M

FI

N

E

FI

N

ES

6" 3"

1/

2" 3/

4" 3/

8" #4

#1

#8 #3

#1

#4

#5

#1

#2

.5

9.

4.

2.

1.

.6

.4

.3 .1

.0

.0

.0

.0

.0

.0

.0

0 10 20 30 40 50 60 70 80 90 10

M

IN

M

IN

M

IN

M

IN

H

R

M

IN

H R

M

IN

TI

M

E R

EA

D

IN

G

S

SI

ZE

IN

IN

C

H

ES

U .S

. S

TA

N D

AR

D

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IE

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N

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G

IN

IN

C H

ES

U

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TA

N

D

AR

D S

IE

VE

N U

M

BE

ck M ar sh

P um pi ng

P la nt F

ER

D

H -2

1-

7.

5' to

U ni fie d

So il

C la ss ifi ca tio n:

SP

P oo rly G ra de d Sa nd Sa m pl e C ol le ct ed b y:

T.

S tru ck

/J . M ille r

Tr ac e

G ra ve l

M ax im um

S iz e:

1/

2" Sp ec ifi c G ra vi ty

C U

2.

D in m m

.6

S an d

M oi st ur e C on te nt

Pl us

N o.

C C

0.

D in m m

2.

F in es

Li qu id L im it:

M in us N o.

D in m m

O ve rs iz e Pl as tic ity In de x:

D in m m

D in m m

0.

0.

/0

5/

0.

1.

2% 0.

0.

0.

0.

0.

0.

0.

0.

.9

.6

.6

.8

.7

.1

8.

2.

010203040506070809010

PERCENT RETAINED (BY WEIGHT)

PERCENT PASSING (BY WEIGHT)

P A

R T

IC

L

E S

IZ

E

I N

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9.

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PERCENT RETAINED (BY WEIGHT)

PERCENT PASSING (BY WEIGHT)

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PERCENT RETAINED (BY WEIGHT)

PERCENT PASSING (BY WEIGHT)

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6" 3"

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PERCENT RETAINED (BY WEIGHT)

PERCENT PASSING (BY WEIGHT)

P A

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6" 3"

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010203040506070809010

PERCENT RETAINED (BY WEIGHT)

PERCENT PASSING (BY WEIGHT)

P A

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6" 3"

1/

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9.

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010203040506070809010

PERCENT RETAINED (BY WEIGHT)

PERCENT PASSING (BY WEIGHT)

P A

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6" 3"

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9.

4.

2.

1.

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0 10 20 30 40 50 60 70 80 90 10

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PERCENT RETAINED (BY WEIGHT)

PERCENT PASSING (BY WEIGHT)

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6" 3"

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010203040506070809010

PERCENT RETAINED (BY WEIGHT)

PERCENT PASSING (BY WEIGHT)

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010203040506070809010

PERCENT RETAINED (BY WEIGHT)

PERCENT PASSING (BY WEIGHT)

P A

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PERCENT RETAINED (BY WEIGHT)

PERCENT PASSING (BY WEIGHT)

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PERCENT RETAINED (BY WEIGHT)

PERCENT PASSING (BY WEIGHT)

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PERCENT RETAINED (BY WEIGHT)

PERCENT PASSING (BY WEIGHT)

P A

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6" 3"

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PERCENT RETAINED (BY WEIGHT)

PERCENT PASSING (BY WEIGHT)

P A

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9.

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PERCENT RETAINED (BY WEIGHT)

PERCENT PASSING (BY WEIGHT)

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6" 3"

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PERCENT RETAINED (BY WEIGHT)

PERCENT PASSING (BY WEIGHT)

P A

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PERCENT RETAINED (BY WEIGHT)

PERCENT PASSING (BY WEIGHT)

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PERCENT RETAINED (BY WEIGHT)

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PERCENT RETAINED (BY WEIGHT)

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010203040506070809010

PERCENT RETAINED (BY WEIGHT)

PERCENT PASSING (BY WEIGHT)

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010203040506070809010

PERCENT RETAINED…