257.74 naughtonfgd5 liner design criteria §257.72 indicates the pond must be constructed with a...

CCR Rule Design Criteria §257.72 As-Built Liner Design CriteriaCertification for a New CCR SurfaceImpoundment

FGD Pond 5 Naughton Power Plant Kemmerer, Wyoming

October 30, 2017

PREPARED FOR PREPARED BY

PacifiCorp1407 West North Temple

Salt Lake City, UT 84116

(801) 521-0376

Fax (801) 220-4748

Tetra Tech1551 Three Crowns Drive

Suite 210

Casper, Wyoming 826048

PROFESSIONAL ENGINEER CERTIFICATION

I hereby certify, as a Professional Engineer in the State of Wyoming, that the information in this document was

assembled under my direct supervisory control. This report is not intended or represented to be suitable for reuse

by PacifiCorp or others without specific verification or adaptation by the Engineer.

I hereby certify, as a Professional Engineer in the State of Wyoming that FGD pond 5 at the Naughton Power Plant

has been constructed in accordance with the requirements of 40 Code of Federal Regulations §257.72.

______________________________ October 30, 2017

Jason M. Stratton, P.E. Date

Design Criteria - §257.72 Liner Design Criteria PacifiCorp – Naughton Power Plant FGD Pond 5

i October 30, 2017

TABLE OF CONTENTS

PROFESSIONAL ENGINEER CERTIFICATION ......................................................................................................II

1.0 INTRODUCTION ..................................................................................................................................................1

2.0 EXISTING CONDITIONS .....................................................................................................................................1

3.0 CONCLUSION ......................................................................................................................................................1

SOURCE(S) ................................................................................................................................................................2

REVISIONS ................................................................................................................................................................3

FIGURES

Figure 1. Site Vicinity ..............................................................................................................................................4

APPENDICES

Appendix B. ................................................................................................................................................ GEOTECHNICAL STUDY


October 30, 2017

1.0 INTRODUCTION The PacifiCorp Naughton Power Plant is located approximately three miles southwest of Kemmerer, Wyoming.

This report addresses the requirements of §257.72 – Liner Design Criteria, as it pertains to FGD Pond 5 at the

Plant. FGD Pond 5 was constructed in 2017. This report presents the initial evaluation immediately following

completion of construction and prior to the pond being placed into service.

Specifically, §257.72 indicates the pond must be constructed with a composite liner system or an approved

alternative liner system. A composite liner system must consist of an upper component and a lower component

where: a) the upper component consists of a geomembrane liner (minimum 60-mil thick for HDPE) and b) the lower

component consists of at least a two-foot layer of compacted soil with a hydraulic conductivity of no more than 1x10-

7 centimeters per second (cm/sec). The upper component must be installed in direct and uniform contact with the

lower component.

2.0 EXISTING CONDITIONS

The Naughton Power Plant is located approximately 3 miles southwest of Kemmerer, Wyoming. The Plant consists

of three coal-fueled units, rated with a net dependable capacity of 156 MW, 201 MW, and 330 MW, respectively.

Coal combustion by-products at the Plant include several types of materials including bottom ash, fly ash, and FGD

materials. FGD Pond 5 was constructed in 2017 at the location shown on Figure 1. The pond has a permitted

capacity of 1,467 acre-ft which is expected to provide approximately 10 years of disposal capacity. The pond may remain operational when full to allow additional evaporation of water. As water evaporates, additional effluent may be added eventually filling the pond with solids. When filled with solids or when continued operation is no longer feasible, a cover will be constructed and the pond will be permanently closed.

The pond has a surface area of 49 acres at the crest with a maximum interior depth of 46 ft. The pond is located on a topographically high area with surface water drainage away from the pond in all directions. The only source of water or waste entering the pond is through two effluent delivery pipelines as well as any precipitation falling within the pond area. No surface water run-on is allowed to enter the pond. The pond has no discharge outlets or spillways (all water entering the pond will be evaporated). The pond embankments have 3 horizontal to 1 vertical slopes and was constructed using soil excavated from within the pond limits and an adjacent borrow area. The pond foundation materials consist of stiff clay and claystone bedrock. Permanent ballast consisting of grout filled tubes was placed over the geomembrane to prevent wind damage. A chain link security fence was installed around the pond to prevent larger wildlife from entering the area. A bird hazing system was installed to reduce impacts to migratory water fowl.

The pond was constructed with a composite liner system consisting of a 60-mil HDPE geomembrane (upper component) in direct contact with a two-foot layer of compacted soil with a hydraulic conductivity of no more than 1 x 10-7 cm/sec (lower component) (Clay liner material obtained from claystone bedrock borrow indicated in Appendix B).

3.0 CONCLUSION

As indicated above, FGD Pond 5 was constructed with a composite liner system in accordance with the

requirements of §257.74 – Liner Design Criteria.

.


October 30, 2017

SOURCE(S)

[1] USEPA, 2015. 40 CFR Parts 257 and 261, Hazardous and Solid Waste Management System; Disposal of Coal Combustion Residuals from Electric Utilities; Final Rule. April 17, 2015. 201 pp.


October 30, 2017

REVISIONS

Revision Number Date Revision Made By Whom

0 10/30/2017 Initial Issue Tetra Tech

SEC. 12

SE

C. 1

SE

C. 6

1

2

3

4

5

6

POINT COORDINATES

Point #

1

2

3

4

5

6

7

8

Northing

780,549.81'

780,840.84'

780,705.88'

780,313.29'

779,532.25'

779,251.20'

779,298.33'

779,615.00'

Easting

2,485,709.83'

2,485,938.61'

2,486,941.83'

2,487,845.06'

2,487,921.40'

2,487,426.65'

2,485,988.22'

2,485,679.07'

R:\N

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GD

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B

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www.tetratech.com

0 Feet

This Drawing, in the form transmitted, is the original work product of TETRA TECH. This drawing cannot be altered, revised or reproduced without the prior written consent of TETRA TECH. An original will be retained by TETRA TECH as the "record copy" for purposes of this project. TETRA TECH does not approve of or warrant these documents if any alteration or modification is made without TETRA TECH's written approval.

FIGURE 1FGD EFFLUENT DISPOSAL POND 5

NAUGHTON POWER PLANTKEMMERER, WYOMING

SITE VICINITY

500January 12, 2017

1551 Three Crowns Drive, Suite 210Casper, WY 82604

NEW FGD EFFLUENT

DISPOSAL POND 5

C

O

.

R

D

.

3

0

4

(

E

L

K

O

L

R

O

A

D

)

NEW EFFLUENT PIPELINE

NEW FGD POND 5

ACCESS ROAD

UTAH

COLORADO

NEBRASKA

SOUTH

DAKOTA

MONTANA

ID

AH

O

CHEYENNE

LARAMIE

SARATOGA

RAWLINS

ROCK SPRINGS

HANNA

MEDICINE BOW

WHEATLAND

TORRINGTON

SUNRISE

DOUGLAS

GLENROCK

LANCE CREEK

EVANSVILLE

CASPER

MIDWEST

LINCH

NEWCASTLE

MOORCROFT

SUNDANCE

GILLETTE

SHEDIDAN

BUFFALO

TEN SLEEP

BASIN

WORLAND

THERMOPOLIS

GREYBULL

CODY

SHOSHONI

RIVERTON

LANDER

FORT WASHAKIE

PINEDALE

BIG PINEY

AFTON

JACKSON

DUBOIS

MORAN

POWELL

LOVELL

EDEN

KEMMERER

GREEN RIVER

MOUNTAIN

VIEW

LYMAN

EVANSTON

ORCHARD VALLEY

LUSK

KEY MAP

All point coordinates are in the NAD83

Wyoming State Planes, West Zone, US

Foot datum.

FGD Effluent Disposal Pond 5 PacifiCorp – Naughton Power Plant

November, 2016

APPENDIX B – GEOTECHNICAL STUDY

SEC. 12

NEW FGD

EFFLUENT

DISPOSAL POND 5

C

O

.

R

D

.

3

0

4

(

E

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K

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)

R:\N-S\PacifiCorp\114-510835 - Naughton FGD Pond\110-2D CADD\SheetFiles\01-Vicinity Map.dwg SAVED:11/15/16 PRINTED:11/15/16 BY:MARK.COOK

www.tetratech.com

This Drawing, in the form transmitted, is the original work product of TETRA TECH. This drawing cannot be altered, revised or reproduced without the prior written consent of TETRA TECH. An original will be retained

by TETRA TECH as the "record copy" for purposes of this project. TETRA TECH does not approve of or warrant these documents if any alteration or modification is made without TETRA TECH's written approval.


NAUGHTON POWER PLANT, KEMMERER, WYOMINGSITE VICINITY

November 15, 2016

4750 West 2100 South, Ste 400Salt Lake City, UT 84120PHONE: (801) 364-1064

FAX: (801) 364-2021

NEW EFFLUENT PIPELINE

NEW FGD POND 5

ACCESS ROAD

SEC. 12

SEC. 2

SEC. 11

LEGEND

GEOTECHNICAL BORING

PROPERTY BOUNDARY

EXISTING CONTOUR (MINOR)

EXISTING CONTOUR (MAJOR)

EXISTING GATE

EXISTING SNOW FENCES

UNMARKED PROPERTY LINE

UNMARKED PROPERTY LINE

PROPOSED FGD POND 5 SITE

R:\N-S\PacifiCorp\114-510835 - Naughton FGD Pond\110-2D CADD\SheetFiles\02-Locations of Exploration Borings.dwg SAVED:11/15/16 PRINTED:11/15/16 BY:MARK.COOK

www.tetratech.com

0 FeetThis Drawing, in the form transmitted, is the original work product of TETRA TECH. This drawing cannot be altered, revised or reproduced without the prior written consent of TETRA TECH. An original will be retained

by TETRA TECH as the "record copy" for purposes of this project. TETRA TECH does not approve of or warrant these documents if any alteration or modification is made without TETRA TECH's written approval.


NAUGHTON POWER PLANT, KEMMERER, WYOMINGLOCATIONS OF EXPLORATORY BORINGS

600November 15, 2016

4750 West 2100 South, Ste 400Salt Lake City, UT 84120PHONE: (801) 364-1064

FAX: (801) 364-2021

50/6.0"

50/5.0"

TOPSOIL, (6 inches thick).

CLAYSTONE BEDROCK, medium hardto very hard, brown to dark gray, slightlymoist to wet.

41

40

34

47

50

50

50

50

Pocket Penetrometer, TSF 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5

Sheet 1 Of 2

(Continued Next Page)

Sam

ple

Typ

e

% Passing No. 200 Sieve

TEST RESULTS

SP

TB

low

s P

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Inch

es

20 40 60 80

PL LLMC

Sym

bol

Dep

th(f

t)

Project Number: WY16034A

Dry

Den

sity

(pcf

)

Logged By: M. Medley

Project Name: FGD Pond 5 - Naughton Power Plant - Kemmerer, Wyoming

Date Drilled: 6/14/2016

SPT, N-Value

B-1BORING LOG

USCS Description

Groundwater Depth: 47.5'

Remarks

Note: BGS =Below Ground Surface

Borehole Dia.: 4" SSA

Client: Tetra Tech, Inc.

Drilled By: STRATA

SP

T -

N

Drill Rig: CME 55

ST

RA

TA

BO

RE

HO

LE -

ST

RA

TA

.GD

T -

11/

9/1

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4:46

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TS

\T-Z

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NC

\WY

1603

4A -

FG

D P

ON

D 5

- G

T D

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G\G

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S\W

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034A

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.GP

J

0

5

10

15

20

25

30

50

50

50/4.0"

50/5.0"

50/6.0"

50/6.0"

CLAYSTONE BEDROCK, medium hardto very hard, brown to dark gray, slightlymoist to wet. (continued)

Borehole Terminated at 50.5 Feet.

50

50

50

50


Sheet 2 Of 2

Sam

ple

Typ

e


TEST RESULTS

SP

TB

low

s P

er6

Inch

es

20 40 60 80

PL LLMC

Sym

bol

Dep

th(f

t)


Dry

Den

sity

(pcf

)




SPT, N-Value

B-1BORING LOG

USCS Description


Remarks




Drilled By: STRATA

SP

T -

N

Drill Rig: CME 55

ST

RA

TA

BO

RE

HO

LE -

ST

RA

TA

.GD

T -

11/

9/1

6 1

4:46

- V

:\ST

RA

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AS

PE

R P

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JEC

TS

\T-Z

\TE

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A T

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H, I

NC

\WY

1603

4A -

FG

D P

ON

D 5

- G

T D

RIL

LIN

G\G

EO

\GIN

T L

OG

S\W

Y16

034A

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J

35

40

45

50

50

50

50

50

06-16-1606-14-16

50/6.0"

114

120

115

116

124


(CL) Sandy LEAN CLAY, stiff, brown,slightly moist.

CLAYSTONE BEDROCK, medium hardto very hard, brown to dark gray, slightlymoist to wet. 50

50

50

42

50

50

50

50


Sheet 1 Of 2


Sam

ple

Typ

e


TEST RESULTS

SP

TB

low

s P

er6

Inch

es

20 40 60 80

PL LLMC

Sym

bol

Dep

th(f

t)


Dry

Den

sity

(pcf

)




SPT, N-Value

B-2BORING LOG

USCS Description

Groundwater Depth: 36'

Remarks




Drilled By: STRATA

SP

T -

N

Drill Rig: CME 55

ST

RA

TA

BO

RE

HO

LE -

ST

RA

TA

.GD

T -

11/

9/1

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4:46

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\T-Z

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\WY

1603

4A -

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D P

ON

D 5

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T D

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G\G

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J

20 39

19 52

19 49

17 49

20 48

10

12

10

12

12

0

5

10

15

20

25

30

50

06-15-16

CL

50/6.0"

50/1.0"

122

CLAYSTONE BEDROCK, medium hardto very hard, brown to dark gray, slightlymoist to wet. (continued)


50

50

50

50


Sheet 2 Of 2

Sam

ple

Typ

e


TEST RESULTS

SP

TB

low

s P

er6

Inch

es

20 40 60 80

PL LLMC

Sym

bol

Dep

th(f

t)


Dry

Den

sity

(pcf

)




SPT, N-Value

B-2BORING LOG

USCS Description


Remarks




Drilled By: STRATA

SP

T -

N

Drill Rig: CME 55

ST

RA

TA

BO

RE

HO

LE -

ST

RA

TA

.GD

T -

11/

9/1

6 1

4:46

- V

:\ST

RA

TA

- C

AS

PE

R P

RO

JEC

TS

\T-Z

\TE

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A T

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H, I

NC

\WY

1603

4A -

FG

D P

ON

D 5

- G

T D

RIL

LIN

G\G

EO

\GIN

T L

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S\W

Y16

034A

LO

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.GP

J

15

35

40

45

50

50

50

06-15-16

50/6.0"

113

124


(CL) Sandy LEAN CLAY, stiff to hard,brown, slightly moist.

CLAYSTONE BEDROCK, medium hardto very hard, browny, slightly moist.

35

50

50

45

50

50

50

50


Sheet 1 Of 2


Sam

ple

Typ

e


TEST RESULTS

SP

TB

low

s P

er6

Inch

es

20 40 60 80

PL LLMC

Sym

bol

Dep

th(f

t)


Dry

Den

sity

(pcf

)




SPT, N-Value

B-3BORING LOG

USCS Description


Remarks




Drilled By: STRATA

SP

T -

N

Drill Rig: CME 55

ST

RA

TA

BO

RE

HO

LE -

ST

RA

TA

.GD

T -

11/

9/1

6 1

4:46

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:\ST

RA

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AS

PE

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\T-Z

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H, I

NC

\WY

1603

4A -

FG

D P

ON

D 5

- G

T D

RIL

LIN

G\G

EO

\GIN

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OG

S\W

Y16

034A

LO

GS

.GP

J

16 35

15 41

9

8

0

5

10

15

20

25

30 50

06-09-16

06-08-16

CL

50/1.0"

50/4.0"

50/3.0"

50/1.0"

CLAYSTONE BEDROCK, medium hardto very hard, browny, slightly moist.(continued)


50

50

50

50


Sheet 2 Of 2

Sam

ple

Typ

e


TEST RESULTS

SP

TB

low

s P

er6

Inch

es

20 40 60 80

PL LLMC

Sym

bol

Dep

th(f

t)


Dry

Den

sity

(pcf

)




SPT, N-Value

B-3BORING LOG

USCS Description


Remarks




Drilled By: STRATA

SP

T -

N

Drill Rig: CME 55

ST

RA

TA

BO

RE

HO

LE -

ST

RA

TA

.GD

T -

11/

9/1

6 1

4:46

- V

:\ST

RA

TA

- C

AS

PE

R P

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JEC

TS

\T-Z

\TE

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A T

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H, I

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1603

4A -

FG

D P

ON

D 5

- G

T D

RIL

LIN

G\G

EO

\GIN

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Y16

034A

LO

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J

35

40

45

50

50

50

50

50

50/6.0"

50/6.0"

94

118



CLAYSTONE BEDROCK, medium hardto very hard, brown to dark gray, dry tomoist.

26

43

50

50

50

50

50

50


Sheet 1 Of 2


Sam

ple

Typ

e


TEST RESULTS

SP

TB

low

s P

er6

Inch

es

20 40 60 80

PL LLMC

Sym

bol

Dep

th(f

t)


Dry

Den

sity

(pcf

)



Date Drilled:

SPT, N-Value

B-4BORING LOG

USCS Description

Groundwater Depth: N.E.

Remarks




Drilled By: STRATA

SP

T -

N

Drill Rig: CME 55

ST

RA

TA

BO

RE

HO

LE -

ST

RA

TA

.GD

T -

11/

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6 1

4:46

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AS

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TS

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1603

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D P

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D 5

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T D

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G\G

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J

22 52

12

14

0

5

10

15

20

25

30

50

50

CL

50/5.0"

50/3.0"

50/4.0"

50/1.0"

CLAYSTONE BEDROCK, medium hardto very hard, brown to dark gray, dry tomoist. (continued)


50

50

50

50


Sheet 2 Of 2

Sam

ple

Typ

e


TEST RESULTS

SP

TB

low

s P

er6

Inch

es

20 40 60 80

PL LLMC

Sym

bol

Dep

th(f

t)


Dry

Den

sity

(pcf

)



Date Drilled:

SPT, N-Value

B-4BORING LOG

USCS Description


Remarks




Drilled By: STRATA

SP

T -

N

Drill Rig: CME 55

ST

RA

TA

BO

RE

HO

LE -

ST

RA

TA

.GD

T -

11/

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6 1

4:46

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RA

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AS

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JEC

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\T-Z

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A T

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H, I

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1603

4A -

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D P

ON

D 5

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T D

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G\G

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034A

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J

35

40

45

50

50

50

50

50

50/6.0"

50/5.0"

50/4.0"

125

115

127


CLAYSTONE BEDROCK, firm to veryhard, brown to dark gray, slightly moistto wet.


50

50

50

50

50

50

50

50


Sheet 1 Of 1

Sam

ple

Typ

e


TEST RESULTS

SP

TB

low

s P

er6

Inch

es

20 40 60 80

PL LLMC

Sym

bol

Dep

th(f

t)


Dry

Den

sity

(pcf

)




SPT, N-Value

B-10BORING LOG

USCS Description


Remarks




Drilled By: STRATA

SP

T -

N

Drill Rig: CME 55

ST

RA

TA

BO

RE

HO

LE -

ST

RA

TA

.GD

T -

11/

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6 1

4:46

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AS

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JEC

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\T-Z

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A T

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H, I

NC

\WY

1603

4A -

FG

D P

ON

D 5

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T D

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LIN

G\G

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\GIN

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S\W

Y16

034A

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J

17 38

18 37

19 36

9

8

11

0

5

10

15

20

25

30

50

50

50

06-10-16

06-10-16

2850

50/5.0"




34

31

50

50

50

50

78

50


Sheet 1 Of 1

Sam

ple

Typ

e


TEST RESULTS

SP

TB

low

s P

er6

Inch

es

20 40 60 80

PL LLMC

Sym

bol

Dep

th(f

t)


Dry

Den

sity

(pcf

)




SPT, N-Value

B-11BORING LOG

USCS Description


Remarks




Drilled By: STRATA

SP

T -

N

Drill Rig: CME 55

ST

RA

TA

BO

RE

HO

LE -

ST

RA

TA

.GD

T -

11/

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D P

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G\G

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0

5

10

15

20

25

30 50

06-15-1606-15-16

2850/5.0"





50

50

50

50

50

50

50

100+


Sheet 1 Of 1

Sam

ple

Typ

e


TEST RESULTS

SP

TB

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20 40 60 80

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Sym

bol

Dep

th(f

t)


Dry

Den

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(pcf

)




SPT, N-Value

B-12BORING LOG

USCS Description


Remarks




Drilled By: STRATA

SP

T -

N

Drill Rig: CME 55

ST

RA

TA

BO

RE

HO

LE -

ST

RA

TA

.GD

T -

11/

9/1

6 1

4:46

- V

:\ST

RA

TA

- C

AS

PE

R P

RO

JEC

TS

\T-Z

\TE

TR

A T

EC

H, I

NC

\WY

1603

4A -

FG

D P

ON

D 5

- G

T D

RIL

LIN

G\G

EO

\GIN

T L

OG

S\W

Y16

034A

LO

GS

.GP

J

0

5

10

15

20

25

30 50

06-09-16

06-09-16

CL

50/5.0"




24

24

26

40

50

40

50

50


Sheet 1 Of 1

Sam

ple

Typ

e


TEST RESULTS

SP

TB

low

s P

er6

Inch

es

20 40 60 80

PL LLMC

Sym

bol

Dep

th(f

t)


Dry

Den

sity

(pcf

)




SPT, N-Value

B-13BORING LOG

USCS Description


Remarks




Drilled By: STRATA

SP

T -

N

Drill Rig: CME 55

ST

RA

TA

BO

RE

HO

LE -

ST

RA

TA

.GD

T -

11/

9/1

6 1

4:46

- V

:\ST

RA

TA

- C

AS

PE

R P

RO

JEC

TS

\T-Z

\TE

TR

A T

EC

H, I

NC

\WY

1603

4A -

FG

D P

ON

D 5

- G

T D

RIL

LIN

G\G

EO

\GIN

T L

OG

S\W

Y16

034A

LO

GS

.GP

J

0

5

10

15

20

25

30 50

06-15-1606-15-16

50/5.0"

50/6.0"

50/5.0"

103


(CL) Sandy LEAN CLAY, very stiff,brown, slightly moist.



32

44

50

50

50

50

50

50


Sheet 1 Of 1

Sam

ple

Typ

e


TEST RESULTS

SP

TB

low

s P

er6

Inch

es

20 40 60 80

PL LLMC

Sym

bol

Dep

th(f

t)


Dry

Den

sity

(pcf

)




SPT, N-Value

B-14BORING LOG

USCS Description


Remarks




Drilled By: STRATA

SP

T -

N

Drill Rig: CME 55

ST

RA

TA

BO

RE

HO

LE -

ST

RA

TA

.GD

T -

11/

9/1

6 1

4:46

- V

:\ST

RA

TA

- C

AS

PE

R P

RO

JEC

TS

\T-Z

\TE

TR

A T

EC

H, I

NC

\WY

1603

4A -

FG

D P

ON

D 5

- G

T D

RIL

LIN

G\G

EO

\GIN

T L

OG

S\W

Y16

034A

LO

GS

.GP

J

16 38

19

0

5

10

15

20

25

30

50

50

50

06-14-1606-14-16

CL

50/5.0"


(CL) Sandy LEAN CLAY, hard, brown,slightly moist.

CLAYSTONE BEDROCK, medium hardto very hard, brown to dark gray, slightlymoist.


48

50

38

30

44

46

42

50


Sheet 1 Of 1

Sam

ple

Typ

e


TEST RESULTS

SP

TB

low

s P

er6

Inch

es

20 40 60 80

PL LLMC

Sym

bol

Dep

th(f

t)


Dry

Den

sity

(pcf

)




SPT, N-Value

B-15BORING LOG

USCS Description


Remarks




Drilled By: STRATA

SP

T -

N

Drill Rig: CME 55

ST

RA

TA

BO

RE

HO

LE -

ST

RA

TA

.GD

T -

11/

9/1

6 1

4:46

- V

:\ST

RA

TA

- C

AS

PE

R P

RO

JEC

TS

\T-Z

\TE

TR

A T

EC

H, I

NC

\WY

1603

4A -

FG

D P

ON

D 5

- G

T D

RIL

LIN

G\G

EO

\GIN

T L

OG

S\W

Y16

034A

LO

GS

.GP

J

0

5

10

15

20

25

30 50

CL

50/4.0"

50/4.0"



CLAYSTONE BEDROCK, firm to veryhard, brown to dark gray, slightly moist.


30

34

40

50

50

50

50

50


Sheet 1 Of 1

Sam

ple

Typ

e


TEST RESULTS

SP

TB

low

s P

er6

Inch

es

20 40 60 80

PL LLMC

Sym

bol

Dep

th(f

t)


Dry

Den

sity

(pcf

)




SPT, N-Value

B-16BORING LOG

USCS Description


Remarks




Drilled By: STRATA

SP

T -

N

Drill Rig: CME 55

ST

RA

TA

BO

RE

HO

LE -

ST

RA

TA

.GD

T -

11/

9/1

6 1

4:46

- V

:\ST

RA

TA

- C

AS

PE

R P

RO

JEC

TS

\T-Z

\TE

TR

A T

EC

H, I

NC

\WY

1603

4A -

FG

D P

ON

D 5

- G

T D

RIL

LIN

G\G

EO

\GIN

T L

OG

S\W

Y16

034A

LO

GS

.GP

J

0

5

10

15

20

25

30

50

50

06-08-16

06-08-16

CL

50/4.0"



CLAYSTONE BEDROCK, firm, brownto dark gray, slightly moist.


25

46

50

50

50

50

50


Sheet 1 Of 1

Sam

ple

Typ

e


TEST RESULTS

SP

TB

low

s P

er6

Inch

es

20 40 60 80

PL LLMC

Sym

bol

Dep

th(f

t)


Dry

Den

sity

(pcf

)




SPT, N-Value

B-17BORING LOG

USCS Description


Remarks




Drilled By: STRATA

SP

T -

N

Drill Rig: CME 55

ST

RA

TA

BO

RE

HO

LE -

ST

RA

TA

.GD

T -

11/

9/1

6 1

4:46

- V

:\ST

RA

TA

- C

AS

PE

R P

RO

JEC

TS

\T-Z

\TE

TR

A T

EC

H, I

NC

\WY

1603

4A -

FG

D P

ON

D 5

- G

T D

RIL

LIN

G\G

EO

\GIN

T L

OG

S\W

Y16

034A

LO

GS

.GP

J

0

5

10

15

20

2550

06-08-16

06-08-16

CL

50/3.0"

50/4.0"



CLAYSTONE BEDROCK, medium hardto very hard, gray to dark gray, slightlymoist to moist.


40

50

50

46

50

50

50

50


Sheet 1 Of 1

Sam

ple

Typ

e


TEST RESULTS

SP

TB

low

s P

er6

Inch

es

20 40 60 80

PL LLMC

Sym

bol

Dep

th(f

t)


Dry

Den

sity

(pcf

)




SPT, N-Value

B-18BORING LOG

USCS Description


Remarks




Drilled By: STRATA

SP

T -

N

Drill Rig: CME 55

ST

RA

TA

BO

RE

HO

LE -

ST

RA

TA

.GD

T -

11/

9/1

6 1

4:46

- V

:\ST

RA

TA

- C

AS

PE

R P

RO

JEC

TS

\T-Z

\TE

TR

A T

EC

H, I

NC

\WY

1603

4A -

FG

D P

ON

D 5

- G

T D

RIL

LIN

G\G

EO

\GIN

T L

OG

S\W

Y16

034A

LO

GS

.GP

J

0

5

10

15

20

25

30

50

50

06-08-16

06-08-16

CL

50/4.0"

50/3.0"


(CL) Sandy LEAN CLAY, stiff to verystiff, brown, slightly moist.

CLAYSTONE BEDROCK, firm to veryhard, gray to dark gray, slightly moist tomoist.


14

32

26

32

50

50

50

50


Sheet 1 Of 1

Sam

ple

Typ

e


TEST RESULTS

SP

TB

low

s P

er6

Inch

es

20 40 60 80

PL LLMC

Sym

bol

Dep

th(f

t)


Dry

Den

sity

(pcf

)



Date Drilled:

SPT, N-Value

B-19BORING LOG

USCS Description


Remarks




Drilled By: STRATA

SP

T -

N

Drill Rig: CME 55

ST

RA

TA

BO

RE

HO

LE -

ST

RA

TA

.GD

T -

11/

9/1

6 1

4:46

- V

:\ST

RA

TA

- C

AS

PE

R P

RO

JEC

TS

\T-Z

\TE

TR

A T

EC

H, I

NC

\WY

1603

4A -

FG

D P

ON

D 5

- G

T D

RIL

LIN

G\G

EO

\GIN

T L

OG

S\W

Y16

034A

LO

GS

.GP

J

0

5

10

15

20

25

30

50

50

CL

50/6.0"

50/5.0"


CLAYSTONE BEDROCK, very hard,brown to dark gray, slightly moist towet.


50

50

50

50

50

50


Sheet 1 Of 1

Sam

ple

Typ

e


TEST RESULTS

SP

TB

low

s P

er6

Inch

es

20 40 60 80

PL LLMC

Sym

bol

Dep

th(f

t)


Dry

Den

sity

(pcf

)




SPT, N-Value

B-20BORING LOG

USCS Description


Remarks




Drilled By: STRATA

SP

T -

N

Drill Rig: CME 55

ST

RA

TA

BO

RE

HO

LE -

ST

RA

TA

.GD

T -

11/

9/1

6 1

4:46

- V

:\ST

RA

TA

- C

AS

PE

R P

RO

JEC

TS

\T-Z

\TE

TR

A T

EC

H, I

NC

\WY

1603

4A -

FG

D P

ON

D 5

- G

T D

RIL

LIN

G\G

EO

\GIN

T L

OG

S\W

Y16

034A

LO

GS

.GP

J

0

5

10

15

20

50

50

06-10-16

06-10-16



CLAYSTONE BEDROCK, medium hardto very hard, brown to dark gray, slightlymoist to moist.


36

50

50

50

50

50


Sheet 1 Of 1

Sam

ple

Typ

e


TEST RESULTS

SP

TB

low

s P

er6

Inch

es

20 40 60 80

PL LLMC

Sym

bol

Dep

th(f

t)


Dry

Den

sity

(pcf

)




SPT, N-Value

B-21BORING LOG

USCS Description


Remarks




Drilled By: STRATA

SP

T -

N

Drill Rig: CME 55

ST

RA

TA

BO

RE

HO

LE -

ST

RA

TA

.GD

T -

11/

9/1

6 1

4:46

- V

:\ST

RA

TA

- C

AS

PE

R P

RO

JEC

TS

\T-Z

\TE

TR

A T

EC

H, I

NC

\WY

1603

4A -

FG

D P

ON

D 5

- G

T D

RIL

LIN

G\G

EO

\GIN

T L

OG

S\W

Y16

034A

LO

GS

.GP

J

0

5

10

15

20

06-09-16

06-09-16

CL


(CL) Sandy LEAN CLAY, very hard,brown, slightly moist.

CLAYSTONE BEDROCK, firm to veryhard, brown to dark gray, slightly moist.


50

50

50

25

40

50


Sheet 1 Of 1

Sam

ple

Typ

e


TEST RESULTS

SP

TB

low

s P

er6

Inch

es

20 40 60 80

PL LLMC

Sym

bol

Dep

th(f

t)


Dry

Den

sity

(pcf

)




SPT, N-Value

B-22BORING LOG

USCS Description


Remarks




Drilled By: STRATA

SP

T -

N

Drill Rig: CME 55

ST

RA

TA

BO

RE

HO

LE -

ST

RA

TA

.GD

T -

11/

9/1

6 1

4:46

- V

:\ST

RA

TA

- C

AS

PE

R P

RO

JEC

TS

\T-Z

\TE

TR

A T

EC

H, I

NC

\WY

1603

4A -

FG

D P

ON

D 5

- G

T D

RIL

LIN

G\G

EO

\GIN

T L

OG

S\W

Y16

034A

LO

GS

.GP

J

0

5

10

15

20

06-09-16

CL



CLAYSTONE BEDROCK, firm, gray todark gray, slightly moist.


15

22

40

50

50

50


Sheet 1 Of 1

Sam

ple

Typ

e


TEST RESULTS

SP

TB

low

s P

er6

Inch

es

20 40 60 80

PL LLMC

Sym

bol

Dep

th(f

t)


Dry

Den

sity

(pcf

)




SPT, N-Value

B-23BORING LOG

USCS Description


Remarks




Drilled By: STRATA

SP

T -

N

Drill Rig: CME 55

ST

RA

TA

BO

RE

HO

LE -

ST

RA

TA

.GD

T -

11/

9/1

6 1

4:46

- V

:\ST

RA

TA

- C

AS

PE

R P

RO

JEC

TS

\T-Z

\TE

TR

A T

EC

H, I

NC

\WY

1603

4A -

FG

D P

ON

D 5

- G

T D

RIL

LIN

G\G

EO

\GIN

T L

OG

S\W

Y16

034A

LO

GS

.GP

J

18 46

0

5

10

15

20

CL

50/6.0"

50/5.0"


CLAYSTONE BEDROCK, very hard,brown to dark gray, slightly moist.


50

50

50

50

50

50


Sheet 1 Of 1

Sam

ple

Typ

e


TEST RESULTS

SP

TB

low

s P

er6

Inch

es

20 40 60 80

PL LLMC

Sym

bol

Dep

th(f

t)


Dry

Den

sity

(pcf

)




SPT, N-Value

B-24BORING LOG

USCS Description


Remarks




Drilled By: STRATA

SP

T -

N

Drill Rig: CME 55

ST

RA

TA

BO

RE

HO

LE -

ST

RA

TA

.GD

T -

11/

9/1

6 1

4:46

- V

:\ST

RA

TA

- C

AS

PE

R P

RO

JEC

TS

\T-Z

\TE

TR

A T

EC

H, I

NC

\WY

1603

4A -

FG

D P

ON

D 5

- G

T D

RIL

LIN

G\G

EO

\GIN

T L

OG

S\W

Y16

034A

LO

GS

.GP

J

19 46

0

5

10

15

20

50

50


CLAYSTONE BEDROCK, weathered tovery hard, brown to dark gray, slightlymoist.


16

22

34

41

50


Sheet 1 Of 1

Sam

ple

Typ

e


TEST RESULTS

SP

TB

low

s P

er6

Inch

es

20 40 60 80

PL LLMC

Sym

bol

Dep

th(f

t)


Dry

Den

sity

(pcf

)




SPT, N-Value

B-25BORING LOG

USCS Description


Remarks




Drilled By: STRATA

SP

T -

N

Drill Rig: CME 55

ST

RA

TA

BO

RE

HO

LE -

ST

RA

TA

.GD

T -

11/

9/1

6 1

4:46

- V

:\ST

RA

TA

- C

AS

PE

R P

RO

JEC

TS

\T-Z

\TE

TR

A T

EC

H, I

NC

\WY

1603

4A -

FG

D P

ON

D 5

- G

T D

RIL

LIN

G\G

EO

\GIN

T L

OG

S\W

Y16

034A

LO

GS

.GP

J

0

5

10

15

Tetra Tech

Billings, MT

(no specification provided)

PL= LL= PI=

D90= D85= D60=D50= D30= D15=D10= Cu= Cc=

USCS= AASHTO=

*

Lean CLAY#4

#200100.0

95.6

20 39 19

CL A-6(19)

Naughton FGD Pond 5

114-510835

Soil Description

Atterberg Limits

Coefficients

Classification

Remarks

Source of Sample: B-2 Depth: 2.5'Date:

Client:

Project:

Project No: Figure

SIEVE PERCENT SPEC.* PASS?

SIZE FINER PERCENT (X=NO)

PE

RC

EN

T F

INE

R

0

10

20

30

40

50

60

70

80

90

100

GRAIN SIZE - mm.

0.0010.010.1110100

% +3"Coarse

% Gravel

Fine Coarse Medium

% Sand

Fine Silt

% Fines

Clay

0.0 0.0 0.0 0.9 1.7 1.8 95.6

6 in

.

3 in

.

2 in

.

1½

in.

1 in

.

¾ in

.

½ in

.

3/8

in.

#4

#1

0

#2

0

#3

0

#4

0

#6

0

#1

00

#1

40

#2

00

Particle Size Distribution Report

Tetra Tech

Billings, MT


PL= LL= PI=

D90= D85= D60=D50= D30= D15=D10= Cu= Cc=

USCS= AASHTO=

*

Fat CLAY#4

#200100.0

99.4

19 52 33

CH A-7-6(36)

Naughton FGD Pond 5

114-510835

Soil Description

Atterberg Limits

Coefficients

Classification

Remarks


Client:

Project:

Project No: Figure



PE

RC

EN

T F

INE

R

0

10

20

30

40

50

60

70

80

90

100

GRAIN SIZE - mm.

0.0010.010.1110100

% +3"Coarse

% Gravel

Fine Coarse Medium

% Sand

Fine Silt

% Fines

Clay

0.0 0.0 0.0 0.1 0.3 0.2 99.4

6 in

.

3 in

.

2 in

.

1½

in.

1 in

.

¾ in

.

½ in

.

3/8

in.

#4

#1

0

#2

0

#3

0

#4

0

#6

0

#1

00

#1

40

#2

00


Tetra Tech

Billings, MT


PL= LL= PI=

D90= D85= D60=D50= D30= D15=D10= Cu= Cc=

USCS= AASHTO=

*

Leam CLAY#4

#200100.0

97.6

19 49 30

CL A-7-6(32)

Naughton FGD Pond 5

114-510835

Soil Description

Atterberg Limits

Coefficients

Classification

Remarks

Source of Sample: B-2 Depth: 10'Date:

Client:

Project:

Project No: Figure



PE

RC

EN

T F

INE

R

0

10

20

30

40

50

60

70

80

90

100

GRAIN SIZE - mm.

0.0010.010.1110100

% +3"Coarse

% Gravel

Fine Coarse Medium

% Sand

Fine Silt

% Fines

Clay

0.0 0.0 0.0 0.5 0.9 1.0 97.6

6 in

.

3 in

.

2 in

.

1½

in.

1 in

.

¾ in

.

½ in

.

3/8

in.

#4

#1

0

#2

0

#3

0

#4

0

#6

0

#1

00

#1

40

#2

00


Tetra Tech

Billings, MT


PL= LL= PI=

D90= D85= D60=D50= D30= D15=D10= Cu= Cc=

USCS= AASHTO=

*

Lean CLAY#4

#200100.0

97.9

17 49 32

CL A-7-6(34)

Naughton FGD Pond 5

114-510835

Soil Description

Atterberg Limits

Coefficients

Classification

Remarks


Client:

Project:

Project No: Figure



PE

RC

EN

T F

INE

R

0

10

20

30

40

50

60

70

80

90

100

GRAIN SIZE - mm.

0.0010.010.1110100

% +3"Coarse

% Gravel

Fine Coarse Medium

% Sand

Fine Silt

% Fines

Clay

0.0 0.0 0.0 0.4 0.8 0.9 97.9

6 in

.

3 in

.

2 in

.

1½

in.

1 in

.

¾ in

.

½ in

.

3/8

in.

#4

#1

0

#2

0

#3

0

#4

0

#6

0

#1

00

#1

40

#2

00


Tetra Tech

Billings, MT


PL= LL= PI=

D90= D85= D60=D50= D30= D15=D10= Cu= Cc=

USCS= AASHTO=

*

Lean CLAY#4

#200100.0

98.0

20 48 28

CL A-7-6(30)

Naughton FGD Pond 5

114-510835

Soil Description

Atterberg Limits

Coefficients

Classification

Remarks


Client:

Project:

Project No: Figure



PE

RC

EN

T F

INE

R

0

10

20

30

40

50

60

70

80

90

100

GRAIN SIZE - mm.

0.0010.010.1110100

% +3"Coarse

% Gravel

Fine Coarse Medium

% Sand

Fine Silt

% Fines

Clay

0.0 0.0 0.0 0.4 0.7 0.9 98.0

6 in

.

3 in

.

2 in

.

1½

in.

1 in

.

¾ in

.

½ in

.

3/8

in.

#4

#1

0

#2

0

#3

0

#4

0

#6

0

#1

00

#1

40

#2

00


Tetra Tech

Billings, MT


PL= LL= PI=

D90= D85= D60=D50= D30= D15=D10= Cu= Cc=

USCS= AASHTO=

*

Lean CLAY with Sand#4

#200100.0

70.9

16 35 19

1.1428 0.5605

CL A-6(11)

Naughton FGD Pond 5

114-510835

Soil Description

Atterberg Limits

Coefficients

Classification

Remarks


Client:

Project:

Project No: Figure



PE

RC

EN

T F

INE

R

0

10

20

30

40

50

60

70

80

90

100

GRAIN SIZE - mm.

0.0010.010.1110100

% +3"Coarse

% Gravel

Fine Coarse Medium

% Sand

Fine Silt

% Fines

Clay

0.0 0.0 0.0 6.1 10.8 12.2 70.9

6 in

.

3 in

.

2 in

.

1½

in.

1 in

.

¾ in

.

½ in

.

3/8

in.

#4

#1

0

#2

0

#3

0

#4

0

#6

0

#1

00

#1

40

#2

00


Tetra Tech

Billings, MT


PL= LL= PI=

D90= D85= D60=D50= D30= D15=D10= Cu= Cc=

USCS= AASHTO=

*

Sandy Lean CLAY#4

#200100.0

66.0

15 41 26

1.4016 0.7613

CL A-7-6(15)

Naughton FGD Pond 5

114-510835

Soil Description

Atterberg Limits

Coefficients

Classification

Remarks


Client:

Project:

Project No: Figure



PE

RC

EN

T F

INE

R

0

10

20

30

40

50

60

70

80

90

100

GRAIN SIZE - mm.

0.0010.010.1110100

% +3"Coarse

% Gravel

Fine Coarse Medium

% Sand

Fine Silt

% Fines

Clay

0.0 0.0 0.0 7.1 12.7 14.2 66.0

6 in

.

3 in

.

2 in

.

1½

in.

1 in

.

¾ in

.

½ in

.

3/8

in.

#4

#1

0

#2

0

#3

0

#4

0

#6

0

#1

00

#1

40

#2

00


Tetra Tech

Billings, MT


PL= LL= PI=

D90= D85= D60=D50= D30= D15=D10= Cu= Cc=

USCS= AASHTO=

*

Fat CLAY#4

#200100.0

93.5

22 52 30

CH A-7-6(31)

Naughton FGD Pond 5

114-510835

Soil Description

Atterberg Limits

Coefficients

Classification

Remarks


Client:

Project:

Project No: Figure



PE

RC

EN

T F

INE

R

0

10

20

30

40

50

60

70

80

90

100

GRAIN SIZE - mm.

0.0010.010.1110100

% +3"Coarse

% Gravel

Fine Coarse Medium

% Sand

Fine Silt

% Fines

Clay

0.0 0.0 0.0 1.4 2.4 2.7 93.5

6 in

.

3 in

.

2 in

.

1½

in.

1 in

.

¾ in

.

½ in

.

3/8

in.

#4

#1

0

#2

0

#3

0

#4

0

#6

0

#1

00

#1

40

#2

00


Tetra Tech

Billings, MT


PL= LL= PI=

D90= D85= D60=D50= D30= D15=D10= Cu= Cc=

USCS= AASHTO=

*

Lean CLAY#4

#200100.0

95.4

17 38 21

CL A-6(20)

Naughton FGD Pond 5

114-510835

Soil Description

Atterberg Limits

Coefficients

Classification

Remarks


Client:

Project:

Project No: Figure



PE

RC

EN

T F

INE

R

0

10

20

30

40

50

60

70

80

90

100

GRAIN SIZE - mm.

0.0010.010.1110100

% +3"Coarse

% Gravel

Fine Coarse Medium

% Sand

Fine Silt

% Fines

Clay

0.0 0.0 0.0 1.0 1.7 1.9 95.4

6 in

.

3 in

.

2 in

.

1½

in.

1 in

.

¾ in

.

½ in

.

3/8

in.

#4

#1

0

#2

0

#3

0

#4

0

#6

0

#1

00

#1

40

#2

00


Tetra Tech

Billings, MT


PL= LL= PI=

D90= D85= D60=D50= D30= D15=D10= Cu= Cc=

USCS= AASHTO=

*

Lean CLAY#4

#200100.0

97.1

18 37 19

CL A-6(19)

Naughton FGD Pond 5

114-510835

Soil Description

Atterberg Limits

Coefficients

Classification

Remarks


Client:

Project:

Project No: Figure



PE

RC

EN

T F

INE

R

0

10

20

30

40

50

60

70

80

90

100

GRAIN SIZE - mm.

0.0010.010.1110100

% +3"Coarse

% Gravel

Fine Coarse Medium

% Sand

Fine Silt

% Fines

Clay

0.0 0.0 0.0 0.6 1.1 1.2 97.1

6 in

.

3 in

.

2 in

.

1½

in.

1 in

.

¾ in

.

½ in

.

3/8

in.

#4

#1

0

#2

0

#3

0

#4

0

#6

0

#1

00

#1

40

#2

00


Tetra Tech

Billings, MT


PL= LL= PI=

D90= D85= D60=D50= D30= D15=D10= Cu= Cc=

USCS= AASHTO=

*

Lean CLAY#4

#200100.0

94.7

19 36 17

CL A-6(16)

Naughton FGD Pond 5

114-510835

Soil Description

Atterberg Limits

Coefficients

Classification

Remarks


Client:

Project:

Project No: Figure



PE

RC

EN

T F

INE

R

0

10

20

30

40

50

60

70

80

90

100

GRAIN SIZE - mm.

0.0010.010.1110100

% +3"Coarse

% Gravel

Fine Coarse Medium

% Sand

Fine Silt

% Fines

Clay

0.0 0.0 0.0 1.1 2.0 2.2 94.7

6 in

.

3 in

.

2 in

.

1½

in.

1 in

.

¾ in

.

½ in

.

3/8

in.

#4

#1

0

#2

0

#3

0

#4

0

#6

0

#1

00

#1

40

#2

00


Tetra Tech

Billings, MT


PL= LL= PI=

D90= D85= D60=D50= D30= D15=D10= Cu= Cc=

USCS= AASHTO=

*

Lean CLAY#4#10#20#40#80

#200

100.0100.0

99.799.597.088.7

16 38 22

0.0845

CL A-6(19)

Naughton FGD Pond 5

114-510835

Soil Description

Atterberg Limits

Coefficients

Classification

Remarks

Source of Sample: B-14 Depth: 1'-5'Date:

Client:

Project:

Project No: Figure



PE

RC

EN

T F

INE

R

0

10

20

30

40

50

60

70

80

90

100

GRAIN SIZE - mm.

0.0010.010.1110100

% +3"Coarse

% Gravel

Fine Coarse Medium

% Sand

Fine Silt

% Fines

Clay

0.0 0.0 0.0 0.0 0.5 10.8 88.7

6 in

.

3 in

.

2 in

.

1½

in.

1 in

.

¾ in

.

½ in

.

3/8

in.

#4

#1

0

#2

0

#3

0

#4

0

#6

0

#1

00

#1

40

#2

00


Tetra Tech

Billings, MT


PL= LL= PI=

D90= D85= D60=D50= D30= D15=D10= Cu= Cc=

USCS= AASHTO=

*

Lean CLAY3/8#4#10#20#40#80

#200

100.099.497.996.996.594.285.9

18 46 28

0.1092

CL A-7-6(25)

Naughton FGD Pond 5

114-510835

Soil Description

Atterberg Limits

Coefficients

Classification

Remarks


Client:

Project:

Project No: Figure



PE

RC

EN

T F

INE

R

0

10

20

30

40

50

60

70

80

90

100

GRAIN SIZE - mm.

0.0010.010.1110100

% +3"Coarse

% Gravel

Fine Coarse Medium

% Sand

Fine Silt

% Fines

Clay

0.0 0.0 0.6 1.5 1.4 10.6 85.9

6 in

.

3 in

.

2 in

.

1½

in.

1 in

.

¾ in

.

½ in

.

3/8

in.

#4

#1

0

#2

0

#3

0

#4

0

#6

0

#1

00

#1

40

#2

00


Tetra Tech

Billings, MT


PL= LL= PI=

D90= D85= D60=D50= D30= D15=D10= Cu= Cc=

USCS= AASHTO=

*

Lean CLAY#10#20#40#80

#200

100.099.899.699.498.8

19 46 27

CL A-7-6(29)

Naughton FGD Pond 5

114-510835

Soil Description

Atterberg Limits

Coefficients

Classification

Remarks


Client:

Project:

Project No: Figure



PE

RC

EN

T F

INE

R

0

10

20

30

40

50

60

70

80

90

100

GRAIN SIZE - mm.

0.0010.010.1110100

% +3"Coarse

% Gravel

Fine Coarse Medium

% Sand

Fine Silt

% Fines

Clay

0.0 0.0 0.0 0.0 0.4 0.8 98.8

6 in

.

3 in

.

2 in

.

1½

in.

1 in

.

¾ in

.

½ in

.

3/8

in.

#4

#1

0

#2

0

#3

0

#4

0

#6

0

#1

00

#1

40

#2

00


COMPACTION TEST REPORT

Dry

de

nsi

ty, p

cf

100

102

104

106

108

110

Water content, %

13.5 15 16.5 18 19.5 21 22.5

17.5%, 107.8 pcf

ZAV forSp.G. =2.75

Test specification: ASTM D 698-12 Method A Standard

1'-5' CL A-6(19) 2.75 38 22 0.0 88.7

Lean CLAY

114-510835

Elev/ Classification Nat.Sp.G. LL PI

% > % <

Depth USCS AASHTO Moist. #4 No.200

TEST RESULTS MATERIAL DESCRIPTION

Project No. Client: Remarks:

Project:

Source of Sample: B-14

Tetra Tech

Billings, MT Figure

Maximum dry density = 107.8 pcf

Optimum moisture = 17.5 %

Naughton FGD Pond 5


Dry

de

nsi

ty, p

cf

95

97.5

100

102.5

105

107.5

Water content, %

16 18 20 22 24 26 28

19.3%, 104.3 pcf

ZAV forSp.G. =2.75


1'-5' CL A-7-6(25) 2.75 46 28 0.6 85.9

Lean CLAY

114-510835


% > % <




Project:


Tetra Tech

Billings, MT Figure



Naughton FGD Pond 5


Dry

de

nsi

ty, p

cf

103

104

105

106

107

108

Water content, %

13.5 15 16.5 18 19.5 21 22.5

18.7%, 106.1 pcf

ZAV forSp.G. =2.75


5'-10' CL A-7-6(29) 2.75 46 27 0.0 98.8

Lean CLAY

114-510835


% > % <




Project:


Tetra Tech

Billings, MT Figure



Naughton FGD Pond 5

Project: Naughton FGD Pond 5

Job #: 114-510835.101

Hole # Depth wet+t dry+t t % m Mst Wt diameter height volume Wet Dens Dry Dens

B-2 2.5 279.01 264.88 118.26 9.6 300.15 1.94 3.11 0.005319992 124.4 113.5

7.5 247.82 234.21 119.16 11.8 333.90 1.90 3.34 0.005480256 134.3 120.1

10.0 280.14 265.28 119.28 10.2 393.45 1.94 4.00 0.006842434 126.8 115.1

15.0 215.27 205.40 120.72 11.7 353.90 1.94 3.52 0.006021342 129.6 116.0

20.0 201.04 190.07 98.26 11.9 400.90 1.94 3.71 0.006346357 139.3 124.4

40.0 191.97 180.1 98.66 14.6 421.50 1.94 3.90 0.006671373 139.3 121.6

B-3 2.5 233.44 223.9 117.92 9.0 382.43 1.94 4.00 0.006842434 123.2 113.0

10.0 213.84 207.5 124.03 7.6 392.70 1.94 3.78 0.0064661 133.9 124.4

15.0

20.0

25.0

40.0

B-4 2.5 213.44 203.6 117.84 11.5 214.73 1.94 2.63 0.0044989 105.2 94.4

10.0 232.64 218.3 117.72 14.3 419.41 1.94 4.00 0.006842434 135.1 118.3

20.0

30.0

B-10 2.5 336.87 317.67 104.00 9.0 422.87 1.94 4.00 0.006842434 136.2 125.0

7.5 258.02 248.36 131.25 8.2 235.53 1.94 2.43 0.004156779 124.9 115.4

20.0 286.48 271.17 131.71 11.0 324.22 1.94 2.97 0.005080507 140.7 126.8

30.0

40.0

B-14 10.0

B-23 1-5

B-24 5-10

257.74 naughtonfgd5 liner design criteria §257.72 indicates the pond must be constructed with a...

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