white mesa mill site reclamation energy … · 2018-03-15 · energy fuels interim fill grading...

Area of Drawings

TRC-1 - TRC-3

TITLE SHEET AND PROJECT LOCATION MAP

REC-0

WMM COVER

C

VICINITY MAPLOCATION MAP

U T A H

ENERGY FUELS RESOURCES (USA) INC.

SAN JUAN COUNTY, UTAH

INDEX OF DRAWINGS

SHEET TITLE

See Vicinity Map

TITLE SHEET AND PROJECT LOCATION MAP

REV

INTERIM FILL GRADING PLAN

COMPACTED COVER GRADING PLAN

FINAL COVER SURFACE LAYOUT

COVER OVER CELL 2 CROSS SECTION

COVER OVER CELL 3 CROSS SECTIONS

COVER OVER CELL 2 CROSS SECTIONS

SITE MAP

Cell 1

Cell 2

Cell 3

Cell 4B

Cell 4A

RECLAMATION COVER EROSION PROTECTION

SEDIMENTATION BASIN DETAIL

COVER OVER CELL 4A & 4B CROSS SECTIONS

PLAN VIEW OF RECLAMATION FEATURES

MILL SITE AND ORE PAD AREA GRADING PLAN

prepared for

WHITE MESA MILL SITE RECLAMATION

Mill Site

White Mesa

RECLAMATION COVER DETAILS (SHEET 1 OF 2)

TRC-9 C

TRC-8 C

TRC-7 C

TRC-6 C

TRC-5 C

TRC-4 C

TRC-3 C

TRC-2 C

TRC-1 C

REC-3 C

REC-2 C

REC-1 C

REC-0 C


TRC-10 C


BLANDING, UTAH

AUG 2016

ENERGY FUELS

NOTE:

DRAWINGS REC-0 THROUGH REC-3 PRESENT THE OVERALL RECLAMATION PLANS FOR THE

ENTIRE WHITE MESA MILL SITE. DRAWINGS TRC-1 THROUGH TRC-10 PRESENT THE

RECLAMATION PLANS FOR THE CELLS USED FOR TAILINGS DISPOSAL OR PROCESS WATER

EVAPORATION (CELLS 1, 2, 3, 4A, AND 4B).

CELLS 1 AND 4B ARE CURRENTLY USED FOR PROCESS WATER EVAPORATION. THE

RECLAMATION PLANS REFLECTED IN THESE DRAWINGS ARE BASED ON POTENTIAL USE OF

CELL 4B IN THE FUTURE FOR TAILINGS DISPOSAL.

RESTRICTED AREA BOUNDARY


FINAL FOOTPRINT FOR TAILINGS CELLS

AND CELL 1 DISPOSAL AREA

DISCHARGE CHANNEL

(SEE SHEET REC-3)

CELL 1 DISPOSAL AREA

CELL 2

CELL 3

CELL 4A

CELL 4B

BLACK MESA RD

HW

Y 1

91

SEDIMENTATION BASIN

(SEE SHEET REC-3)

MILL SITE BOUNDARY

(SEE SHEET REC-2)

MILL SITE

PLAN VIEW OF RECLAMATION FEATURES

REC-1

WMM REC-1

C

LEGEND:


BLANDING, UTAH

AUG 2016

ENERGY FUELS

5605

MILL SITE BOUNDARY




CELL 2

BLACK MESA RD

HW

Y 1

91

ORE PAD

MILL YARD

SEDIMENTATION BASIN

NOTES:

LEGEND:


BLANDING, UTAH

AUG 2016

ENERGY FUELS MILL SITE AND ORE PAD AREA GRADING PLAN

REC-2

WMM REC-2

C

5605

MILL SITE BOUNDARY

SEDIMENTATION BASIN

DISCHARGE CHANNEL

CELL 2

CELL 3


ROCK APRON


AREA OF CELL TO BE BREACHED

3:1 (TYP)

EXCAVATION

INTO DAKOTA

SANDSTONE

MILL SITE

0.1%

1

.

3

%

NOTES:

LEGEND:


BLANDING, UTAH

AUG 2016

ENERGY FUELS SEDIMENTATION BASIN DETAIL

REC-3

WMM REC-3

C

5605

APPROXIMATE LIMIT OF

ADDITIONAL INTERIM FILL

DISCHARGE CHANNEL

CELL 2

CELL 4A

CELL 4B

MILL SITE


SEDIMENTATION

BASIN

CELL 3


LEGEND:


BLANDING, UTAH

AUG 2016

ENERGY FUELS INTERIM FILL GRADING PLAN

TRC-1

WMM TRC-1

C

5605

5605

CELL 2

CELL 4A

CELL 4B

MILL SITE


SEDIMENTATION

BASIN

CELL 3


COMPACTED COVER

DISCHARGE CHANNEL


LEGEND:


BLANDING, UTAH

AUG 2016

ENERGY FUELS COMPACTED COVER GRADING PLAN

TRC-2

WMM TRC-2

C

5605

5605

0.5%

0

.5

%

0.5%

-0

.8

%

-0

.8

%

1

.

1

%

1.0

%

CELL 2

CELL 4A

CELL 4B

MILL SITE

SEDIMENTATION

BASIN

CELL 3

HIG

H P

OIN

T



FINAL COVER SURFACE

DISCHARGE CHANNEL

G

R

A

D

E

B

R

E

A

K


LEGEND:


BLANDING, UTAH

AUG 2016

ENERGY FUELS FINAL COVER SURFACE LAYOUT

TRC-3

WMM TRC-3

C

5605

5605



1

.

1

%

0.5%

0

.5

%

0.5%

0

.8

%

0

.8

%

1

0.8-1.0% SLOPES: TOPSOIL MIXED

WITH 25% 1-INCH MINUS GRAVEL

FLOW PATH ABOVE LONGEST

5H:1V SIDE SLOPE IN CELL 4A

LONGEST FLOW PATH

ACROSS CELLS 2, 3 AND 4A

5H:1V SLOPES: ROCK (D

50

= 5.3 INCHES)

WITH FILTER LAYER BETWEEN EROSION

PROTECTION AND RANDOM FILL

0.1%

SLOPES: TOPSOIL

AND VEGETATION

DISCHARGE CHANNEL

BEDROCK

CELL 2

CELL 3

CELL 4A

MILL SITE

BLACK MESA RD

HW

Y 191


SEDIMENTATION BASIN

HIG

H P

OIN

T

ROCK APRON B

1

ROCK APRON C

5H:1V SLOPES: D

50

= 5.3

INCHES WITH FILTER

LAYER BETWEEN EROSION

PROTECTION AND

GROWTH MEDIUM

G

R

A

D

E

B

R

E

A

K

LEGEND:


BLANDING, UTAH

AUG 2016

ENERGY FUELS RECLAMATION COVER EROSION PROTECTION

TRC-4

WMM TRC-4

C

5605

0.5% SLOPES: TOPSOIL

AND VEGETATION

1.0% SLOPES: TOPSOIL MIXED

WITH 25% 1-INCH MINUS GRAVEL

1

ROCK APRON A

NON-ACCUMULATING SIDE

SLOPES: ROCK (D

50

= 1.7 INCHES)

(NO FILTER LAYER REQUIRED)

5605

ELE

VA

TIO

N, F

EE

T

ELE

VA

TIO

N, F

EE

T

DISTANCE, FEET

5560

5580

5600

5620

5550

5560

5580

5600

5620

0 100 200 300 400 500 600 700 800 900 1000 1100 1200 1300 1400 1500

BOTTOM OF CELL FROM DESIGN DRAWINGS

EXISTING SURFACE FROM 2012 LIDAR SURVEY

FINAL COVER SURFACE

-1%

CELL 4B

CELL 3

(SEE SHEET TRC-6)

-1%

MAXIMUM PERMITTED TAILINGS SURFACE

MAXIMUM PERMITTED TAILINGS ELEVATION AT 5600.0'


1

5

9.5' (MIN)

9.5' (MIN)

5

3

6

ELE

VA

TIO

N, F

EE

T

ELE

VA

TIO

N, F

EE

T

DISTANCE, FEET

5580

5600

5620

5560

5580

5600

5620

0 100 200 300 400 500 600 700 800 900 1000 1100 1200 1300 1400 1500

FINAL COVER SURFACE

-1%

CELL 4A

-1%

9.5' (MIN)

3

5


EXISTING SURFACE FROM 2012 LIDAR SURVEYMAXIMUM PERMITTED TAILINGS SURFACE


6

1

5

CELL 3

(SEE SHEET TRC-6)


9.5' (MIN)

COVER OVER CELL 4A & 4B CROSS SECTIONS

TRC-5

WMM TRC-5

C

A TAILINGS COVER

0

0

SCALE IN FEET

VERT

HORZ 50 100

10 20

B TAILINGS COVER

0

0

SCALE IN FEET

VERT

HORZ 50 100

10 20

VERTICAL EXAGGERATION = 5X


LEGEND:


BLANDING, UTAH

AUG 2016

ENERGY FUELS

ELE

VA

TIO

N, F

EE

T

ELE

VA

TIO

N, F

EE

T

DISTANCE, FEET

5580

5600

5620

5640

5560

5580

5600

5620

5640

1300 1400 1500 1600 1700 1800 1900 2000 2100 2200 2300 2400 2500

BOTTOM OF CELL FROM AS-BUILT DRAWINGS

FINAL COVER SURFACE

-0.5%

CELL 3

CELL 2 (SEE SHEET TRC-7)CELL 4B (SEE SHEET TRC-5)

10' (MIN)




9.5' (MIN)

6

7

ELE

VA

TIO

N, F

EE

T

ELE

VA

TIO

N, F

EE

T

DISTANCE, FEET

5580

5600

5620

5640

5570

5580

5600

5620

5640

1300 1400 1500 1600 1700 1800 1900 2000 2100 2200 2300 2400

-0.5%


FINAL COVER SURFACE

CELL 3

CELL 2 (SEE SHEET TRC-7)CELL 4A (SEE SHEET TRC-5)

10' (MIN)

6

7




9.5' (MIN)


BLANDING, UTAH

AUG 2016

ENERGY FUELS COVER OVER CELL 3 CROSS SECTIONS

TRC-6

WMM TRC-5

C

A TAILINGS COVER

0

0

SCALE IN FEET

VERT

HORZ 50 100

10 20

B TAILINGS COVER

0

0

SCALE IN FEET

VERT

HORZ 50 100

10 20



LEGEND:

ELE

VA

TIO

N, F

EE

T

ELE

VA

TIO

N, F

EE

T

DISTANCE, FEET

5580

5600

5620

5640

5570

5580

5600

5620

5640

2300 2400 2500 2600 2700 2800 2900 3000 3100 3200 3300 3400

-0.5%

-0.5%


FINAL COVER SURFACE

CELL 2 CELL 1

CELL 3 (SEE SHEET TRC-6)

-1.0%

10.5' (MIN)

1

5


MAXIMUM PERMITTED TAILINGS

ELEVATION AT 5613.5'


MILL DEBRIS /

CONTAMINATED

SOILS

9.5' (MIN)

4

7E

LE

VA

TIO

N, F

EE

T

EL

EV

AT

IO

N, F

EE

T

DISTANCE, FEET

5580

5600

5620

5640

5570

5580

5600

5620

5640

2200 2300 2400 2500 2600 2700 2800 2900 3000 3100 3200 3300 3400 3500 3600

-0.5%

-1.0%

-0.5%


FINAL COVER SURFACE

CELL 2 CELL 1

CELL 3 (SEE SHEET TRC-6)

7

1

5


10.5' (MIN)



MILL DEBRIS /

CONTAMINATED

SOILS

9.5' (MIN)

4


BLANDING, UTAH

AUG 2016

ENERGY FUELS COVER OVER CELL 2 CROSS SECTIONS

TRC-7

WMM TRC-5

C

A TAILINGS COVER

0

0

SCALE IN FEET

VERT

HORZ 50 100

10 20

B TAILINGS COVER

0

0

SCALE IN FEET

VERT

HORZ 50 100

10 20



LEGEND:

EL

EV

AT

IO

N, F

EE

T

EL

EV

AT

IO

N, F

EE

T

DISTANCE, FEET

5600

5620

5640

5660

5580

5600

5620

5640

5660

0 100 200 300 400 500 600 700 800 900 1000 1100 1200 1300 1400


-1%

FINAL COVER SURFACE

CELL 2

1

5



MAXIMUM PERMITTED TAILINGS ELEVATION AT ~5623'

(MAXIMUM PERMITTED TAILINGS ELEVATION ALONG

NORTH EDGE OF CELL 2 BETWEEN MILL SITE AND

CELL 1 RANGES FROM 5615'-5626')

CELL 3

7

10.5' (MIN)

8

10.5' (MIN)


BLANDING, UTAH

AUG 2016

ENERGY FUELS COVER OVER CELL 2 CROSS SECTION

TRC-8

WMM TRC-5

C

C TAILINGS COVER

0

0

SCALE IN FEET

VERT

HORZ 50 100

10 20


LEGEND:

TABLE 2 - ROCK APRON SCHEDULE

ROCK APRON

TYPE

APRON

RIPRAP D

50

(MINIMUM)

W

1

W

2

DEPTH (D)

A 3.4" 4.5' 5.0' 1'

B 10.6" 13.5' 13' 3'

C 9.0" 11.5' 11' 3'

TABLE 1 - RIPRAP ON SIDE SLOPES

SIDE SLOPE AREA

RIPRAP D

50

FILTER

D

50

THICKNESS D

100

THICKNESS

EAST & WEST SIDES 1.7" 6"

(NOT NEEDED)

-

CELL 4A & 4B SOUTHERN 5.3" 8" 3" 6"

CELL 1 DISPOSAL AREA 5.3" 8" 3" 6"

W1 (SEE TABLE 2)

D (SEE TABLE 2)

FILTER THICKNESS 1% SLOPE

1

5

RIPRAP (SEE TABLE 1)

ELEVATION

COVER

RIPRAP THICKNESS

W₂ (SEE TABLE 2)

RIPRAP FILTER (SEE TABLE 1)

T

1

0.5'

3.5'

T

2

2.5' (MIN)

EROSION PROTECTION LAYER

(TOPSOIL OR GRAVEL ADMIXTURE)

LAYER 3 - GROWTH MEDIUM

LAYER 1 - INTERIM FILL

LAYER 2 - COMPACTED COVER

TAILINGS

VEGETATION

RIPRAP

THICKNESS

VARIES

FILTER THICKNESS

1

5

1

3

EXISTING

BERM

RANDOM FILL

RIPRAP = (SEE TABLE 1)

RIPRAP FILTER (SEE TABLE 1)


TRC-9

WMM TRC-9

C


BLANDING, UTAH

AUG 2016

ENERGY FUELS

1 ROCK APRON AT BASE OF TOE CELL OUTSLOPES

2 COVER DETAIL FOR TOP SURFACE OF TAILINGS

-

3 COVER DETAIL FOR SIDE SLOPES

-

CELLS 2-4 AND CELL 1 DISPOSAL AREA

COVER THICKNESS TABLE

CELL

COVER

(T

1

)

RADON

ATTENUATION

LAYER (T

2

)

1 9.5' 3.0'

2 10.5' 4.0'

3 10.0' 3.5'

4A & 4B 9.5' 3.0'

LEGEND:

NOT TO SCALE

12" CLAY LINER

BERM

CELL 2 CELL 1 DISPOSAL AREA

0.5%

1.0%

2

MILL DEBRIS / CONTAMINATED SOILS

1

5

1

3

1

5

1

RANDOM FILL

3

1

8' MIN

3'

MINIMUM 10'

CELL 3CELL 4

BERM

TAILINGS

TAILINGS

0.8%

MAXIMUM PERMITTED

TAILINGS ELEV AT 5608.5'

0.5%

C

L

CELL 2CELL 3

BERM

TAILINGS

TAILINGS

MAXIMUM PERMITTED


0.5%

0.5%

C

L

BERM

MAXIMUM PERMITTED


TAILINGS

5

1

CELL 4

0.8%

RANDOM FILL

1

MAXIMUM PERMITTED TAILINGS

ELEVATION VARIES

5

1

CELL 2

1%

TAILINGS


TRC-10

WMM TRC-10

C


BLANDING, UTAH

AUG 2016

ENERGY FUELS

4 COVER DETAIL FOR CELL 1 DISPOSAL AREA

5 COVER DETAIL OVER BERM - SOUTHERN EDGE CELL 4 6 COVER DETAIL OVER BERM - BETWEEN CELL 4 AND CELL 3

7 COVER DETAIL OVER BERM - BETWEEN CELL 3 AND CELL 2

0 5 10 0 5 10

0 5 10

0 10 20

6

77

LEGEND:

8 COVER DETAIL OVER BERM - NORTHEASTERN EDGE OF CELL 2

0 5 10

MINIMUM 10'

ROCK APRON

MINIMUM 10'

white mesa mill site reclamation energy … · 2018-03-15 · energy fuels interim fill grading...

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