DWQ-2024-005104

PROJECT
LOCATION
LISBON VALLEY MINE
STAGE 4
HEAP LEACH FACILITY EXPANSION
SAN JUAN COUNTY, UTAH
LISBON VALLEY MINING COMPANY, LLC
HDPE
LLDPE
MAX.
MIN.
TYP.
A.M.S.L.
OD
ID
N.T.S.
APPROX.
SDR
EST.
S.F.
EL.
DIA.
HIGH DENSITY POLYETHYLENE
LINEAR LOW DENSITY POLYETHYLENE
MAXIMUM
MINIMUM
TYPICAL
ABOVE MEAN SEA LEVEL
OUTSIDE DIAMETER
INSIDE DIAMETER
NOT TO SCALE
APPROXIMATE
STANDARD DIMENSION RATIO
ESTIMATED
SQUARE FOOT
ELEVATION
DIAMETER
LIST OF ABBREVIATIONS
HATCH LEGEND
TITLE SHEET WITH DRAWING LIST AND LOCATION MAP
GENERAL SITE LAYOUT
GRADING PLAN
HEAP LEACH PAD SECTIONS
MISCELLANEOUS DETAILS
VADOSE ZONE MONITORING AND SOLUTION COLLECTION PIPING LAYOUT
1
2
3
4
5
6
7
CLAY LINER FILL
STRUCTURAL FILL
PREPARED SUBGRADE
CONCRETE
GENERAL NOTES:
1.THIS DRAWING SET PRESENTS THE DESIGN REQUIREMENTS FOR CONSTRUCTION OF THE STAGE 4 HEAP LEACH FACILITY
EXPANSION AT THE LISBON VALLEY MINE.
2.PREPARED SUBGRADE, AS DEFINED ON THE DRAWINGS, INCLUDES CLEARING, GRUBBING, TOP SOIL REMOVAL (IF ANY),
REMOVAL OF UNSUITABLE MATERIAL, MOISTURE CONDITIONING, AND COMPACTION AS DEFINED IN THE SPECIFICATIONS.
3.CONTRACTOR IS RESPONSIBLE FOR LOCATING, STAKING, AND PROTECTING ANY SUBSURFACE UTILITIES AND PIPES PRIOR
TO EARTHWORKS CONSTRUCTION ACTIVITIES.
4.THE CONTRACTOR IS RESPONSIBLE FOR THE CONSTRUCTION PROCESS AND SAFETY OF ITS WORKERS. THIS INCLUDES,
BUT IS NOT LIMITED TO, THE CONSTRUCTION SEQUENCE, EXCAVATION, ACCESS AND BARRIERS. IT ALSO INCLUDES
TEMPORARY SHORING OF EXCAVATIONS AND STABILITY OF TEMPORARY CUT SLOPES.
5.TWO-FOOT CONTOUR BASE MAP PROVIDED BY LISBON VALLEY MINING COMPANY, ACTUAL GROUND SURFACE EXPECTED
TO VARY BY PLUS OR MINUS ONE FOOT.
LOCATION MAP
OVERLINER FILL
ORE
B
B
B
B
B
B
B
LEACH PAD DETAILS
TANK PAD AND TRUCK TURN AROUND PLAN AND SECTIONS8B
DRAIN GRAVEL
COMPACTED BACKFILL
DRAWING
NUMBER REVISION DRAWING TITLE
0
1
i
n
31407443.000

DRAWING
10
SALT LAKE CITY OFFICE
10876 S. RIVER FRONT PARKWAY, SUITE 250
SOUTH JORDAN, UTAH, 84095
USA
[+1] [phone]A2007-02-01 ISSUED FOR PERMITTING AND CONSTRUCTION JWRKFM KFM REK
B 2024-04-26 ISSUED FOR REVIEW JWRJWR REK DKF
0 2024-04-30 ISSUED FOR CONSTRUCTION JWRJWR REK DKF

LISBON VALLEY MINE
STAGE 4 HEAP LEACH FACILITY EXPANSION

LISBON VALLEY MINING COMPANY, LLC

TITLE SHEET WITH DRAWING LIST AND LOCATION MAP
TITLE
PROJECT NO.REV.
PROJECTCLIENT
CONSULTANT
Pa
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P
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REV.DESCRIPTIONYYYY-MM-DD PREPARED REVIEWED APPROVEDDESIGNED
SEAL
of
IF

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CPE
PCPE
PVC
FT
PERF.
N-12
CORRUGATED POLYETHYLENE
PERFORATED CORRUGATED
POLYETHYLENE
POLYVINYL CHLORIDE
FEET
PERFORATED
ADS N-12 PCPE PIPE (OR APPROVED
EQUIVALENT)
HEAP LEACH PAD CONTROL POINTS9B
0
FEET
4000 8000
1'' = 4000'
PLANT AREA
WA
S
T
E

D
U
M
P
SENTINEL
PIT 1
SENTINEL
PIT 2
WASTE
DUMP NO.2
NO.1
0260
26 08
0616
E
3
2
5
0
0
E
3
2
5
0
0
E
3
5
0
0
0
E
3
5
0
0
0
E
3
7
5
0
0
E
3
7
5
0
0
E
4
0
0
0
0
E
4
0
0
0
0
E
4
2
5
0
0
E
4
2
5
0
0
E
4
5
0
0
0
E
4
5
0
0
0
E
4
7
5
0
0
E
4
7
5
0
0
N 35000 N 35000
N 37500 N 37500
N 40000 N 40000
N 42500 N 42500
N 45000 N 45000
N 47500 N 47500
EXISTING
EMERGENCY
OVERFLOW PONDEXISTING
STORMWATER
POND
EXISTING
RAFFINATE
POND
EXISTING ILS POND
WASTE DUMP
NO.4
CENTENNIAL
PIT
WASTE
DUMP
NO.3
ORE STOCKPILE AND
CRUSHER AREA
GTO PIT
PROPOSED
STAGE 4
(NOTE 4)
EXISTING
STAGE 3
EXISTING
STAGE 2
(NOTE 5)
EXISTING
STAGE 1
(NOTE 5)
EXISTING
PRE-RAFFINATE POND
STORMWATER DIVERSIONS
EXISTING
PLS POND
GTP-05
GTP-08
GTP-11
GTP-02
GTP-01
GTP-04
GTP-07
GTP-10
GTP-03
GTP-06
GTP-09
GTP-12
7D8D9D10D
11D12D
11C
11B
GBH-01
GBH-02
GBH-04
GBH-03
GBH-05
GBH-06
GBH-08
GBH-09
GBH-10
GBH-11
GBH-12
GBH-07
MW-3
MW-1
MW-2
94MW5
94MW3
94MW1
94MW4
94MW2
EXISTING DRAINAGE
MONITORING WELL
PROPOSED FINISHED GRADE TOPOGRAPHY
EXISTING GROUND TOPOGRAPHY
6460
6470
GBH-08 GOLDER 2006 BOREHOLE LOCATION (NOTE 1)
GTP-10
GOLDER 2006 TEST PIT LOCATION (NOTE 1)
EXISTING COUNTY ROAD
EXISTING MINE ROAD
PROJECT BOUNDARY
EXISTING BUILDINGS OR FACILITIES
DIVERSION CHANNEL
12D
SHEPHERD MILLER 1995 STAGE 3 AND 4 CPT LOCATION
(NOTE 2)
MW-1
NOTES
REFERENCES
1.LOCATIONS OF GOLDER 2006 BOREHOLES AND TEST PITS WERE SURVEYED BY LISBON
VALLEY MINING COMPANY.
2.CPT LOCATIONS ONLY SHOWN WITHIN THE STAGE 3 AND 4 FOOTPRINT AREA. LOCATIONS
ARE APPROXIMATE, SCALED FROM A FIGURE IN THE STAGE 1 DESIGN REPORT.
3.LOCATIONS OF SHEPHERD MILLER AND TELESTO BOREHOLES AND TEST PITS WITHIN
STAGES 1 AND 2 FOOTPRINTS ARE NOT SHOWN.
4.ADDITIONAL BOREHOLES AND TEST PITS WILL BE CONDUCTED WITHIN THE PROPOSED
STAGE 4 FOOTPRINT PRIOR TO CONSTRUCTION TO CONFIRM
SUBSURFACE CONDITIONS.
5.ORE IS CURRENTLY STACKED AND BEING LEACHED WITHIN STAGES 1,2 AND 3.
TOPOGRAPHY SHOWN IS REPRESENTATIVE OF BASE (I.E. LINER) CONDITIONS.
1. BASE TOPOGRAPHY, PROPOSED TOPOGRAPHY, AND AS-BUILT TOPOGRAPHY SUPPLIED BY
LISBON VALLEY MINING COMPANY.
LEGEND

0
FEET
750 1500
1'' = 750'
0
1
i
n
31407443.000

DRAWING
20
SALT LAKE CITY OFFICE
10876 S. RIVER FRONT PARKWAY, SUITE 250
SOUTH JORDAN, UTAH, 84095
USA
[+1] [phone]A2007-02-01 ISSUED FOR PERMITTING AND CONSTRUCTION JWRKFM KFM REK
B 2024-04-26 ISSUED FOR REVIEW JWRJWR REK DKF
0 2024-05-01 ISSUED FOR CONSTRUCTION JWRJWR REK DKF

LISBON VALLEY MINE
STAGE 4 HEAP LEACH FACILITY EXPANSION

LISBON VALLEY MINING COMPANY, LLC

GENERAL SITE LAYOUT
TITLE
PROJECT NO.REV.
PROJECTCLIENT
CONSULTANT
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REV.DESCRIPTIONYYYY-MM-DD PREPARED REVIEWED APPROVEDDESIGNED
SEAL
of
IF

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ELECTRICAL STATIONS
5-300' CELLS
41 000 N 41 000 N
36

0
0
0

E
36

0
0
0

E
42 000 N 42 000 N
43 000 N 43 000 N
40 000 N 40 000 N
39 000 N 39 000 N
35

0
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35

0
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E
34

0
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34

0
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39

0
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0

E
39

0
0
0

E
A
4
A'
4
B
4
C
4
C'
4
RS1
RW
EARTHWORKS
VOLUMES:
CUT= 138,000 C.Y.
FILL= 54,000 C.Y.
STAGE 3/STAGE 4
SEPARATION BERM
SEE DETAIL
EXISTING EMERGENCY
OVERFLOW POND
EXISTING
PRE-RAFFINATE
POND
EXISTING RAFFINATE POND
EXISTING PLS POND
EXISTING STORMWATER
POND
PLANT SITE
EXISTING ILS POND
COLLECTION CHANNEL
LINER ANCHOR TRENCH
SEE DETAIL
TYP.
LINER ANCHOR
TRENCH
SEE DETAIL
TYP.
LEACH PAD LINER
SEE DETAIL
TYP.
EXISTING
STAGE 2
(NOTE 3)
EXISTING
STAGE 1
(NOTE 3)
STAGE 4
(~68.0 ACRES)
STAGE 3
(~68.2 ACRES)
CHANNEL TIE-IN
SEE DETAIL
BEGIN CHANNEL RS1
BEGIN CHANNEL RS3
NOTE 4
NOTE 4
LEACH PAD LINER
CELL BERM
SEE DETAIL
TYP.
B'
4
DITCH SLOPE
TRASITIONS FROM
2% TO 0.8%
PAD FOR TANKS AND TRUCK
TURN AROUND AREA
SEE DRAWING 8
4
5
8
7
7
5
8
5
11
5
10
5
6
5
LEGEND
NOTES
REFERENCES
1.GRADING CONTOURS REFLECT TOP OF CLAY LINER FILL WITHIN LIMITS OF STAGE 4
EXPANSION, EXISTING STAGES 1,2 AND 3, EXISTING PONDS AND SOLUTION CHANNEL.
GRADING CONTOURS REFLECT TOP OF STRUCTURAL FILL OUTSIDE OF THESE LIMITS.
2.TWO-FOOT CONTOUR BASE MAP PROVIDED BY LISBON VALLEY MINING
COMPANY, ACTUAL GROUND SURFACE EXPECTED TO VARY BY PLUS OR
MINUS ONE FOOT.
3.ORE IS CURRENTLY STACKED AND BEING LEACHED WITHIN STAGES 1,2 AND 3.
TOPOGRAPHY SHOWN IS REPRESENTATIVE OF ORE SURFACE.
4.CUT SLOPES AS SHOWN ARE DESIGNED AT 1(H):1(V). ACTUAL SLOPES ARE TO BE
INSPECTED BY A QUALIFIED GEOTECHNICAL ENGINEER TO VERIFY OR MODIFY THIS
SLOPE FOR THE CONDITIONS ENCOUNTERED. WHERE COMPETENT BEDROCK IS
ENCOUNTERED, THE SLOPE MAY BE STEEPENED TO A MAXIMUM OF 0.5(H):1(V) IF
APPROVED BY ENGINEER.
1. EXISTING GROUND TOPOGRAPHY PROVIDED BY LISBON VALLEY MINING
COMPANY, LLC.
PROPOSED GRADING CONTOURS (NOTE 1)
6410
6420
EXISTING GROUND TOPOGRAPHY (SEE REFERENCE 1)
CROSS SECTION IDENTIFIER
SHEET WHERE SECTION IS LOCATED
C
4
EXISTING BUILDINGS OR FACILITIES
1
3
STAGE 4 GRADING PLAN
SCALE: 1"=300'
RS1
DIVERSION CHANNEL AND REACH DESIGNATION
0
1
i
n
31407443.000

DRAWING
30
SALT LAKE CITY OFFICE
10876 S. RIVER FRONT PARKWAY, SUITE 250
SOUTH JORDAN, UTAH, 84095
USA
[+1] [phone]A2007-02-01 ISSUED FOR PERMITTING AND CONSTRUCTION JWRKFM KFM REK
B 2024-04-26 ISSUED FOR REVIEW JWRJWR REK DKF
0 2024-04-30 ISSUED FOR CONSTRUCTION JWRJWR REK DKF

LISBON VALLEY MINE
STAGE 4 HEAP LEACH FACILITY EXPANSION

LISBON VALLEY MINING COMPANY, LLC

STAGE 4 GRADING PLAN
TITLE
PROJECT NO.REV.
PROJECTCLIENT
CONSULTANT
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REV.DESCRIPTIONYYYY-MM-DD PREPARED REVIEWED APPROVEDDESIGNED
SEAL
of
IF

T
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M
E
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U
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0
FEET
300 600
1'' = 300'
STACKED ORE SURFACE CONTOURS (NOTE 3)
6410
6420
A
3
HEAP LEACH PAD SECTION A-A'
SCALE: 1"=100'
B
3
HEAP LEACH PAD SECTION B-B'
SCALE: 1"=100'
C
3
HEAP LEACH PAD SECTION C-C'
SCALE: 1"=100'
ANGLE OF
REPOSE
ANGLE OF
REPOSE
ANGLE OF
REPOSE
ANGLE OF
REPOSE ANGLE OF
REPOSE
PREPARED
SUBGRADE
PREPARED
SUBGRADE
PREPARED
SUBGRADE
6450
6470
6490
6510
0 400 800 1200 1600 2000 2400 2800 3200
6470
6490
6510
6530
0 400 800 1200 1600 2000 2400
6440
6460
6480
6500
0 400 800 1200 1600 2000 2400
WEST
A
EAST
A'
NORTH
B
SOUTH
B'
SOUTH
C'
NORTH
C
HORIZONTAL DISTANCE - FEET
HORIZONTAL DISTANCE - FEET
HORIZONTAL DISTANCE - FEET
EL
E
V
A
T
I
O
N

-

F
E
E
T

A
M
S
L
EL
E
V
A
T
I
O
N

-

F
E
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T

A
M
S
L
EL
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V
A
T
I
O
N

-

F
E
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T

A
M
S
L
EXISTING GROUND
SURFACETOP OF LINER
TOP OF LINER
TOP OF LINER
TIE-IN TO STAGE 2
SEE DETAIL
ACCESS ROAD AND DIVERSION CHANNEL
SEE DETAIL
ACCESS ROAD AND DIVERSION CHANNEL
SEE DETAIL
SOLUTION COLLECTION CHANNEL
SEE DETAIL
SOLUTION COLLECTION CHANNEL
SEE DETAIL
6430
6450
6420
STAGE 4 STAGE 3 STAGE 3 AND 4 SEPARATION BERM
SEE DETAIL SEE DETAIL (TYP.)
NORTH-SOUTH CELL BERM
STAGE 4
STAGE 3
EXISTING STAGE 2
6450
6470
6490
6510
EL
E
V
A
T
I
O
N

-

F
E
E
T

A
M
S
L
6430
6470
6490
6510
6530
EL
E
V
A
T
I
O
N

-

F
E
E
T

A
M
S
L
6450
6440
6460
6480
6500
EL
E
V
A
T
I
O
N

-

F
E
E
T

A
M
S
L
6420
EXISTING GROUND
SURFACE
EXISTING GROUND
SURFACE
LIFT 1
LIFT 2
LIFT 3
LIFT 4
OVERALL SLOPE
2.5
1 6530
6550
6570
6590
6610
6530
6550
6570
6590
6610
OVERALL SLOPE
2.5
1
6550
6570
6590
6610
6630
6550
6570
6590
6610
6630
LIFT 1
LIFT 2
LIFT 3
LIFT 4
LIFT 1
LIFT 2
LIFT 3
LIFT 4
OVERALL SLOPE
2.5
1
6520
6540
6560
6580
6600
6520
6540
6560
6580
6600
2.5
1
2.5
1
OVERALL SLOPE
OVERALL SLOPE
LEACH PAD LINER TYP.
LEACH PAD LINER TYP.
CELL SEPARATION BERM TYP.
EXISTING STAGE 3 LEACH PAD LINER
PROPOSED STAGE 4
LEACH PAD LINER TYP.
DESIGN ORE LIFTS
SURVEYED STAGE 3 ORE SURFACE
1
5
12
5
12
5
4
5
4
5
7
5
8
5
8
5
6
5
6
5
DESIGN ORE LIFTS
SURVEYED STAGE 3 ORE SURFACE
8
5
EXISTING GROUND
SURFACE
TOP OF 2-ft. THICK CUSHION LAYER
EXISTING GROUND 300'300'300'
300'300'
TOP OF 2 ft THICK CUSHION LAYER
LEGEND
NOTES
1.PLACE LOCAL ORE IN LIFTS A ANGLE OF REPOSE. BENCH AND/OR RESLOPE AS NECESSARY
TO ACHIEVE OVERALL ORE SIDESLOPES OF 2.0H DURING OPERATIONS, WITH FINAL
EXTERIOR SLOPES BENCHED TO PROVIDE A COMPOSITE CLOSURE SLOPE OF 2.5H:1V.
MAXIMUM HEIGHT OF LIFT 1 SHALL NOT EXCEED 25 FEET.
EXISTING GROUND SURFACE
STAGE 4 LINER SURFACE
PROPOSED TOP OF HEAP OR STRUCTURAL FILL GRADING
0
1
i
n
31407443.000

DRAWING
40
SALT LAKE CITY OFFICE
10876 S. RIVER FRONT PARKWAY, SUITE 250
SOUTH JORDAN, UTAH, 84095
USA
[+1] [phone]A2007-02-01 ISSUED FOR PERMITTING AND CONSTRUCTION JWRKFM KFM REK
B 2024-04-26 ISSUED FOR REVIEW JWRJWR REK DKF
0 2024-04-30 ISSUED FOR CONSTRUCTION JWRJWR REK DKF

LISBON VALLEY MINE
STAGE 4 HEAP LEACH FACILITY EXPANSION

LISBON VALLEY MINING COMPANY, LLC

HEAP LEACH PAD SECTIONS
TITLE
PROJECT NO.REV.
PROJECTCLIENT
CONSULTANT
Pa
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:

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P
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REV.DESCRIPTIONYYYY-MM-DD PREPARED REVIEWED APPROVEDDESIGNED
SEAL
of
IF

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I
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STAGE 3 LINER SURFACE
SURVEYED TOP OF HEAP SURFACE
0
FEET
100 200
1'' = 100'
REMOVE EXCESS MATERIAL
FROM EXISTING BERM HDPE LINER
1 FT. CLAY LINER FILL
10 FT.
(TYP.)
FUSION WELD STAGE 3 LLDPE LINER
TO EXISTING STAGE 2 HDPE LINER
STEP 1
STAGE 3STAGE 4
1
5
STAGE 3 / STAGE 4 TIE-IN DETAIL
N.T.S.
1 FT. CLAY LINER FILL
STAGE 3STAGE 4 STEP 2
60-MIL LLDPE 1 FT. CLAY LINER FILL
HDPE LINER
TEMPORARY DIVERSION DITCH
SLOPE
LINER SYSTEM
1
LEACH PAD
ORE
~1.4
LIFT 1
LIFT 2
OVERALL
SLOPE
1
2.5 LIFT 3
2
5
HEAP CROSS-SECTION - UPGRADIENT SIDE
N.T.S.
8
5
SEE DETAIL 5
5
CONVEYOR CORRIDOR
LIFT 4
25

F
T
.
(M
A
X
.
)
108 FT. (TYP.)
LINER SYSTEM
LEACH PAD
SLOPE
(SEE DETAIL )
AND ACCESS ROAD
COLLECTION BERM,
SOLUTION CHANNEL,
3
5
HEAP CROSS-SECTION - DOWNGRADIENT SIDE
N.T.S.
1ORELIFT 1
LIFT 2
OVERALL
SLOPE
1
2.5LIFT 3
8
5
LIFT 4
4
5
~1.4
25

F
T
.
(M
A
X
.
)
108 FT. (TYP.)
1
3
4
5
PERIMETER BERM AND COLLECTION CHANNEL
N.T.S.
COLLECTION
BERM
5 FT. MIN6 FT. MIN.
1
2
1
2.5
3 FT.
MIN.
SLOPE
60-MIL LLDPE
1FT. CLAY LINER
FILL
4 FT.
MIN.
12 FT.
SOLUTION
CHANNEL
80 MIL HDPE
RUBSHEET
BENEATH ALL 8 IN. DIA.
OR GREATER
SOLUTION PIPES
15 FT.
ACCESS
ROAD
1 FT. CLAY LINER FILL
2.5 FT.
MIN
PROTECTIVE
CUSHION LAYER
STRUCTURAL
FILL
FUSION WELD,
TRANSITION FROM
60 MIL LLDPE TO
80 MIL HDPE
2 FT.
PREPARED SUBGRADE
10
5
2 FT.
9
5 TYP.
24" DIA.
NON-PERFORATED HDPE
SDR17 (MIN.) SOLUTION
TRANSPORT PIPES
9
5 TYP.
1 FT.
MIN.
1 FT.
MIN.
BEGIN 60 MIL LLDPE
SECONDARY LINER
AND GEONET AT
ANCHOR TRENCH
13
5
14
5
1 FT.
MIN.
21
LEACH PAD LINER SYSTEM3 FT.
SLOPE
60 FT.
ORE
OVERLINER FILL
2 FT. OF
5
5
CONVEYOR CORRIDOR CROSS-SECTION
N.T.S.
8
5
11
5
PREPARED SUBGRADE1 FT. (MIN.) CLAY LINER FILL
SLOPE
3
1
6
5
NORTH-SOUTH CELL BERM CROSS-SECTION
N.T.S.
8
5
4 IN. DIA. TERTIARY
PERFORATED CPE
COLLECTION PIPES
(@ 15 FT. O.C.)
SECONDARY PERFORATED
CPE COLLECTION PIPE (SEE
DRAWING 6 FOR SIZES)
60-MIL LLDPE
BERM CONSTRUCTED WITH
CUSHION LAYER MATERIAL
2 FT THICK (MIN.)
PROTECTIVE
CUSHION LAYER
PREPARED SUBGRADE
60 MIL LLDPE
8
5
TYPICAL LEACH PAD LINER SYSTEM DETAIL
N.T.S.
2 FT. THICK (MIN.) PROTECTIVE CUSHION LAYER
1 FT. THICK (MIN.) CLAY LINER FILL
60 MIL LLDPE
1.5 FT.
MIN.
MI
N
.
1.
5

F
T
.
2 FT. MIN.
BACKFILL
COMPACTED
11
5
LEACH PAD LINER ANCHOR DETAIL
N.T.S.
PREPARED SUBGRADE
1 FT. CLAY LINER
FILL
60 MIL LLDPE
10 FT.
(TYP.)
7
5
STAGE 3 AND 4 SEPARATION BERM
N.T.S.
3
1 3
1
4 FT.
1 FT. CLAY LINER FILL
SLOPE
OVERLINER FILL
8
5
2 FT. MIN.
SECONDARY PERFORATED
CPE COLLECTION PIPE
(SEE DRAWING 6 FOR SIZES)
4 IN. DIA. TERTIARY
PERFORATED CPE
COLLECTION PIPES
STRUCTURAL FILL
OR PREPARED
SUBGRADE
SLOPE
EXISTING
STAGE 3
NEW
CONSTRUCTION
STAGE 4
2 FT. PROTECTIVE CUSHION LAYER
OVERLINER FILL
CUSHIO
N

L
A
Y
E
R
STAGE 4
1 FT. THICK
RIPRAP D50=6
INCHES
TYPE VL
12
5
PERIMETER ACCESS ROAD AND DIVERSION CHANNEL DETAIL
N.T.S.
PREPARED SUBGRADE
10 FT.
3
13
1
VARIES
SEE DETAIL
6 IN. ALL
WEATHER ROAD
SURFACE
30 FT. ACCESS ROAD
LEACH PAD
11
5
7
7
ANCHOR
PREPARED SUBGRADE
60 MIL LLDPE
1.5 FT.
MIN.
MI
N
.
1.
5

F
T
.
80 MIL HDPE
EXTEND INTO
GEONET
2 FT. MIN.
BACKFILL
COMPACTED
10
5
COLLECTION CHANNEL / TANK PAD LINER ANCHOR DETAIL
N.T.S.
1 FT. CLAY LINER
FILL
9
5 TYP.
9
5
TYPICAL SOLUTION COLLECTION CHANNEL / TANK PAD LINER SYSTEM DETAIL
N.T.S.
60 MIL LLDPE GEOMEMBRANE
80 MIL HDPE GEOMEMBRANE
GEONET
1 FT. CLAY
LINER FILL
PREPARED SUBGRADE
60 MIL LLDPE
80 MIL HDPE
GEONET
14
5
COLLECTION CHANNEL PARTIAL LINER ANCHOR DETAIL
N.T.S.
1 FT. CLAY
LINER FILL
1.5 FT.
MIN.
PREPARED SUBGRADE
OR STRUCTURAL FILL
1.5 FT.
MIN.
EXTENDANCHOR GEONET
AND 60 MIL LLDPE
80 MIL HDPE60 MIL LLDPE
PREPARED SUBGRADE
FUSION WELD
1 FT. (MIN.)
CLAY LINER FILL
13
5
LLDPE TO HDPE TRANSITION
N.T.S.
0
1
i
n
31407443.000

DRAWING
50
SALT LAKE CITY OFFICE
10876 S. RIVER FRONT PARKWAY, SUITE 250
SOUTH JORDAN, UTAH, 84095
USA
[+1] [phone]A2007-02-01 ISSUED FOR PERMITTING AND CONSTRUCTION JWRKFM KFM REK
B 2024-04-26 ISSUED FOR REVIEW JWRJWR REK DKF
0 2024-04-30 ISSUED FOR CONSTRUCTION JWRJWR REK DKF

LISBON VALLEY MINE
STAGE 4 HEAP LEACH FACILITY EXPANSION

LISBON VALLEY MINING COMPANY, LLC

LEACH PAD DETAILS
TITLE
PROJECT NO.REV.
PROJECTCLIENT
CONSULTANT
Pa
t
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:

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P
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REV.DESCRIPTIONYYYY-MM-DD PREPARED REVIEWED APPROVEDDESIGNED
SEAL
of
IF

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BEGIN CHANNEL RS2
BEGIN CHANNEL RS1
EXISTING
STAGE 2
EXISTING STAGE 3
HEAP LEACH FACILITY
STAGE 4
HEAP LEACH FACILITY EXPANSION
5 X 300-FT CELLS
LEGEND
TERTIARY 4 INCH DIA. PERFORATED PCPE PIPE
NOTES
REFERENCES
PROPOSED FINISHED GRADE TOPOGRAPHY (NOTE 1)
EXISTING GROUND TOPOGRAPHY (REFERENCE 1)
SECONDARY 6 INCH DIA. PERFORATED N-12 CPE SOLUTION PIPE
SECONDARY 8 INCH DIA. PERFORATED N-12 CPE SOLUTION PIPE
SECONDARY 10 INCH DIA. PERFORATED N-12 CPE SOLUTION PIPE
SECONDARY 12 INCH DIA. PERFORATED N-12 CPE SOLUTION PIPE
LYSIMETER (NOTE 2)
6
5
7
5
5
7 TYP
6
7 1
74
5
8
7
CHANNEL
TIE-IN
12
5
SEE DETAIL
7
7
10
7
2
7
PROTECTIVE COVER FOR LYSIMETER INSTALLATION
10
7
1.FINAL GRADE ELEVATIONS SHOWN ON THIS DRAWING ARE TOP OF GEOMEMBRANE LINER ON
THE PAD AND LINED SOLUTION CHANNEL, AND TOP OF STRUCTURAL FILL IN UNLINED AREAS.
2.TERMINATE LYSIMETER PVC CONDUIT WITH A PROTECTIVE COVER PER DETAIL 10 ON
DRAWING 7. PROTECT BY PLACING THREE CONCRETE BALLARDS AT NOMINAL 5-FT SPACING
IN THREE DIRECTIONS.
3.FOUR 24-IN. PIPES LOCATED WITHIN SOLUTION COLLECTION CHANNEL PER DETAIL 2,
DRAWING 7.
4.CAP UPSTREAM ENDS OF NEW PRIMARY, SECONDARY, AND TERTIARY SOLUTION PIPES.
5.INSTALL ALL SOLUTION PIPE WITH A MINIMUM GRADE OF 1 PERCENT.
1.BASE TOPOGRAPHY SUPPLIED BY LISBON VALLEY MINING COMPANY.
24 INCH DIA. NON-PERFORATED HDPE SDR17 (MIN.) CPE SOLUTION
TRANSPORT PIPE (NOTE 3)
STAGE 3/4 CELL
SEPARATION BERM
TERTIARY TO
SECONDARY PIPE
CONNECTION
LYSIMETER
(TYP.)
12 IN. TEE (TYP.)
EXISTING SOLUTION
COLLECTION CHANNEL 12 INCH DIA. NON-PERFORATED HDPE SDR17 (MIN.) CPE SOLUTION PIPE
NORTH-SOUTH
CELL BERM TYP.
CELL OUTLET
SEE DETAIL TYP.
PERIMETER BERM
AND COLLECTION
CHANNEL
PERIMETER ACCESS
ROAD AND DIVERSION
CHANNEL
DIVERSION CHANNEL
PROTECTIVE COVER
FOR LYSIMETER
INSTALLATION TYP.
SOLUTION COLLECTION
CHANNEL SUMP (1 PER
STAGE) TYP.
0
1
i
n
31407443.000

DRAWING
60
SALT LAKE CITY OFFICE
10876 S. RIVER FRONT PARKWAY, SUITE 250
SOUTH JORDAN, UTAH, 84095
USA
[+1] [phone]A2007-02-01 ISSUED FOR PERMITTING AND CONSTRUCTION JWRKFM KFM REK
B 2024-04-26 ISSUED FOR REVIEW JWRJWR REK DKF
0 2024-04-30 ISSUED FOR CONSTRUCTION JWRJWR REK DKF

LISBON VALLEY MINE
STAGE 4 HEAP LEACH FACILITY EXPANSION

LISBON VALLEY MINING COMPANY, LLC

VADOSE ZONE MONITORING AND SOLUTION COLLECTION PIPING
LAYOUT
TITLE
PROJECT NO.REV.
PROJECTCLIENT
CONSULTANT
Pa
t
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:

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6

P
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REV.DESCRIPTIONYYYY-MM-DD PREPARED REVIEWED APPROVEDDESIGNED
SEAL
of
IF

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15 FT. SPACING (TYP.)
STAGE 4 PIPE QUANTITIES
TERTIARY 3 INCH DIA. PERFORATED PCPE PIPE - 181,371 FT
SECONDARY 6 INCH DIA. PERFORATED N-12 CPE SOLUTION PIPE -2,140 FT
SECONDARY 8 INCH DIA. PERFORATED N-12 CPE SOLUTION PIPE - 2,434 FT
SECONDARY 10 INCH DIA. PERFORATED N-12 CPE SOLUTION PIPE - 3,753 FT
SECONDARY 12 INCH DIA. PERFORATED N-12 CPE SOLUTION PIPE - 2,860 FT
12 INCH DIA. NON-PERFORATED HDPE SDR17 (MIN.) CPE SOLUTION PIPE - 180 FT
NOTE: QUANTITIES DO NOT ACCOUNT FOR WASTE.
FL
O
W

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TERTIARY 3 IN. DIA. PCPE
COLLECTION PIPE
(20 FT. O.C.)
F
L
O
W
BERM
COLLECTION
12 FT.5 FT.
FLOW
36 IN. COLLECTION CAN
SEE DETAIL
1
7
SOLUTION COLLECTION PIPING OUTLET PLAN VIEW
N.T.S
3
7
6 FT. MIN.
SECONDARY SOLUTION
12 IN. DIA. PERFORATED CPE
COLLECTION PIPE
TERTIARY TO SECONDARY
SOLUTION COLLECTION
PIPE 5
7
TEE
PIPE
FITTING
12 IN. DIA. NON-PERFORATED
HDPE SOLUTION
COLLECTION PIPE
FL
O
W
RA
F
F
I
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A
T
E

S
O
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D
PERIPHERAL LINER FUSION
WELDED TO PRIMARY LINER
AT DOWNGRADIENT SIDE OF
EACH LEAK DETECTION SUMP
(NOTE 7)
24 IN. DIA. NON-PERFORATED
HDPE SOLUTION TRANSPORT
PIPES, SDR 17 (MIN.)
SOLUTION COLLECTION CHANNEL
LEAK DETECTION SUMP
(NOTE 7)
2 FT. MIN.
F
L
O
W
FLOW
12 IN. DIA. PERFORATED CPE
SECONDARY SOLUTION
COLLECTION PIPE
STAGE OR CELL
DIVIDER BERM
TRANSITION FROM 12 IN.
CPE TO 12 IN. HDPE PIPE
SEE DETAIL 9
7
SOLUTION
COLLECTION
CHANNEL
IN
T
E
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M
E
D
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E

S
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NOTE: SHADED AREA INDICATES THE EXTENT OF SOLUTION
COLLECTION CHANNEL LINER SYSTEM.
~
2
7
2
7
4
7
4
7
START OF PERIPHERAL 60 MIL
LLDPE SECONDARY LINER AND
GEONET
13
5FUSION WELD TRANSITION TO 80
MIL HDPE PRIMARY LINER TYP.
14
5TYP.
12 FT.
1 FT.
CLAY LINER
FILL
1
3
ACCESS
ROAD
36 IN. COLLECTION CAN
SEE DETAIL (NOTE 9)
1 FT.
LEAK DETECTION RISER PIPE
LINER BOOT
(4 IN. DIA SOLID HDPE PIPE,
COLLECTION
CHANNEL LINER
ANCHOR
SEE DETAIL
4 FT.
3 FT.
SANDBAG AND SOIL
DAM (NOTE 1)
SEE DETAIL
POLYETHYLENE
SANDBAGS
PREPARED
SUBGRADE
EXTRUSION WELD
POLYETHYLENE DAM
TO 80-MIL HDPE
12 IN. DIA. NON- PERF.
HDPE SOLUTION PIPES
SDR 17 (MIN.)
BACKFILL WITH MATERIAL
APPROVED BY ENGINEER
80-MIL HDPE
RUBSHEET
12 IN. DIA. PERFORATED CPE
SECONDARY SOLUTION
COLLECTION PIPE
EXTRUSION WELD BOOT TO
HDPE PIPE ALL AROUND
(SEE NOTE 1)
LEACH PAD
LINER SYSTEM
TYP.SOLUTION COLLECTION
CHANNEL LINER SYSTEM
TYP.24 IN. DIA. NON-PERFORATED
SOLUTION TRANPORT PIPES
SDR 17 (MIN.)
LOWER 1 FT. SLOTTED)
THREADED
PLUG
DRAIN GRAVEL
80-MIL HDPE RUBSHEET
UNDER SOLUTION
TRANSPORT PIPES
6.5 FT.
2 FT.
12 IN. DIA. PCPE TO
12 IN. DIA. NON-PERF.
HDPE PIPE SEE DETAIL
FUSION WELD
60 MIL LLDPE
TO 80 MIL HDPE
PREPARED
SUBGRADE
4
7
8
5
3
7 10
5
9
5
9
7
VALVES (BY OWNER)
2
7
TYPICAL SOLUTION COLLECTION CHANNEL OUTLET AND SUMP SECTION (NOTE 7)
N.T.S.
80 MIL HDPE RUBSHEET
CONNECT BY
24 IN. BY 12 IN.
PIPE TEE
14
5
2 FT. THICK
PROTECTIVE
CUSHION
LAYER
36 IN. DIA. SDR 32.5
12 IN. DIA.
INLET
30°
12 IN. DIA.
OUTLET PIPES
FLANGED OUTLETS 12 IN. SDR 17
W/ SS BACKING RINGS
16 IN.
4 FT.
SOLID BOTTOM
(NOTE 9)
REMOVABLE OR HINGED TOP
FOR ACCESS TO CAN FOR
SOLUTION SAMPLING
VALVES (BY OWNER)
3
7
COLLECTION CAN FOR PAD RETURN FLOW
N.T.S.
10 FT.DEPTH, D
(NOTE 3)
3
1
3
1
PREPARED
SUBGRADE
TYPE VL RIPRAP
(D50=6 INCHES)
12 IN.
(NOTE 4)
CHANNEL
DESIGNATION
DEPTH,
D (FT)
RS1 3.0
RS2 4.0
RS3 5.0
RW 3.5
7
7
TYPICAL TRAPEZOIDAL DIVERSION CHANNEL
N.T.S.
10 FT.
TERTIARY 3 IN. DIA. PCPE
COLLECTION PIPE
END CAP
PERFORATED CPE SECONDARY
SOLUTION COLLECTION PIPE
(NOTE 2)PLASTIC TIES
FLO
W
FLOW
5
7
SOLUTION COLLECTION PIPE CONNECTION
N.T.S.
FLOW
TYPICAL TERTIARY TO SECONDARY
3:
1
EXISTING CHANNEL BASE
WITH HDPE LINER
1 FT. MIN
CLAY LINER
FILL
EXISTING TOP
OF CHANNEL
NEW CHANNEL BASE AND
80 MIL HDPE LINER
EXISTING
GROUND
PREPARED
SUBGRADE
3:
1
FUSION WELD
EXISTING HDPE LINER
TO NEW LINER
PROPOSED TOP
OF CHANNEL
9
5
8
7
CHANNEL TIE-IN PROFILE DETAIL
N.T.S.
200 MESH SILICA SAND
(12 IN. ABOVE TOP OF LYSIMETER)
2 IN. DIA. NON-PERF.
SCH. 80 PVC
CONDUIT PIPE
2 IN. PVC 90 DEGREE ELBOW
1 FT. MIN. CLAY LINER FILL
60 MIL LLDPE
GEOMEMBRANE
LYSIMETER
PREPARED SUBGRADE
6-8 IN. DIA BORING
1
4-INCH DIA POLY TUBING
BACKFILL AROUND PVC
(WITH FINE-GRAINED,
NATIVE DRILL CUTTINGS)
COMPACTED BACKFILL
(SEE NOTE 6)
PVC PIPE PLUG
5 FT.
TYP.
6
7
TYPICAL LYSIMETER DETAIL, 10 LOCATIONS
N.T.S.
3' MIN.
6 FT.9 FT. MIN.
3 FT.
MIN.
PREPARED
SUBGRADE
4
7
SANDBAG AND SOIL DAM SECTION
N.T.S.
12 IN. DIA.
COLLECTION PIPE ORIGINAL GROUND
SURFACE
STRUCTURAL FILL
OR PREPARED SUBGRADE
1 FT. MIN. CLAY
LINER FILL
1
3
1
3
9
5
TYP. SOLUTION
COLLECTION CHANNEL
LINER SYSTEM
80 MIL RUBSHEET
BENEATH PIPE
FROM PADTO COLLECTION CAN
5 FT.
12 IN. DIA.
NON-PERFORATED
SDR 17 (MIN.) HDPE
PIPE
3 EA - STAINLESS STEEL
PIPE CLAMPS
12 IN. DIA.
PERFORATED
CPE PIPE
(NOTE 5)
18 IN. TO 12 IN.
SDR 17 HDPE REDUCER
5 FT.
12 OZ/YD2
NONWOVEN
GEOTEXTILE
(NOTE 5)
9
7
NON-PERFORATED HDPE PIPING CONNECTION
N.T.S.
TYPICAL PERFORATED PCPE TO
2 FT.
MIN.
LOCKING COVER
PROTECTIVE MONUMENT
STEEL CASING OR
SIMILAR
CONCRETE TYPE V
10
7 N.T.S.
PROTECTIVE MONUMENT FOR
LYSIMETER MONITORING
CABLES
NOTES
1.EXTRUSION WELD PIPE BOOT TO POLYETHYLENE DAM. INSTALL PIPE AND WELD DAM
TO 80 MIL HDPE RUBSHEET.
2.DRAWING 6 SHOWS THE DIMENSIONS OF SOLUTION COLLECTION PIPES.
3.DIVERSION CHANNEL DESIGN INCLUDES 1 FT OF FREEBOARD. CHANNELS WERE
DESIGNED TO CONVEY THE 100-YR 24-HR STORM.
4.SLOPE THE DIVERSION CHANNELS AT MINIMUM 1% SLOPE.
5.INSERT 12 IN. DIA. PERFORATED CPE PIPE (14.5 IN. O.D.) 5 FT INTO 18 IN. SDR-17(MIN.)
HDPE PIPE. WRAP CONNECTION WITH 12 OZ./YD2 NONWOVEN GEOTEXTILE 5 FT ON
BOTH SIDES OF THE CONNECTION AND CLAMP GEOTEXTILE TO THE PIPES WITH
STAINLESS STEEL PIPE CLAMPS.
6.INSTALL LYSIMETERS IN BOREHOLES PRIOR TO LINER CONSTRUCTION. EXTEND PVC
PIPE AND LYSIMETER TUBING IN SHALLOW TRENCH 12-INCHES BELOW SUBGRADE.
BACKFILL TRENCH WITH FINE-GRAINED, NATIVE SOILS (1-INCH MINUS) AND COMPACT
AS PER SPECIFICATI0NS.
7.INSTALL ONE LEAK DETECTION SUMP AT THE DOWNGRADIENT CELL OUTLET FOR EACH
STAGE (I.E. ONE SUMP PER STAGE).
8.PLACE 12 OZ./YD2 NONWOVEN GEOTEXTILE OR GEOMEMBRANE RUBSHEET BELOW ALL
PIPING GREATER THAN 8 IN. DIAMETER.
9.EXCAVATE AT EACH COLLECTION CAN LOCATION TO ALLOW INSTALLATION OF PIPING
FROM PAD TO LIE FLAT ON HDPE GEOMEMBRANE AND RUBSHEET.
0
1
i
n
31407443.000

DRAWING
70
SALT LAKE CITY OFFICE
10876 S. RIVER FRONT PARKWAY, SUITE 250
SOUTH JORDAN, UTAH, 84095
USA
[+1] [phone]A2007-02-01 ISSUED FOR PERMITTING AND CONSTRUCTION JWRKFM KFM REK
B 2024-04-26 ISSUED FOR REVIEW JWRJWR REK DKF
0 2024-04-30 ISSUED FOR CONSTRUCTION JWRJWR REK DKF

LISBON VALLEY MINE
STAGE 4 HEAP LEACH FACILITY EXPANSION

LISBON VALLEY MINING COMPANY, LLC

MISCELLANEOUS DETAILS
TITLE
PROJECT NO.REV.
PROJECTCLIENT
CONSULTANT
Pa
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:

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P
M
REV.DESCRIPTIONYYYY-MM-DD PREPARED REVIEWED APPROVEDDESIGNED
SEAL
of
IF

T
H
I
S

M
E
A
S
U
R
E
M
E
N
T

D
O
E
S

N
O
T

M
A
T
C
H

W
H
A
T

I
S

S
H
O
W
N
,

T
H
E

S
H
E
E
T

S
I
Z
E

H
A
S

B
E
E
N

M
O
D
I
F
I
E
D

F
R
O
M
:

A
N
S
I

D
PERIMETER ROAD
B
9
A
9
155 FT
11
0

F
T
150 FT
40

F
T
PARKING / TRUCK TURN AROUND
LINED TANK PAD
DOUBLE LINER
SYSTEM
TANK PAD PERIMETER BERM
AND ANCHOR TRENCH
1%
1%
STAGE 4 LINER
STAGE 3 ORE
STAGE 3 DIVERSION
STAGE 4 DIVERSION
PERIMETER ROAD
64
6
0
64
6
5
6460
6465
3.4%
R55
'
1.5%
DRAINAGE DIVERSION TO BE DETERMINED
1
89
5
3
H
:
1
V
3H
:
1
V
3H
:
1
V
3
0
'
15
'
30
'
15
'
ANCHOR TRENCH
42 300 N 42 300 N
34

1
0
0

E
34

1
0
0

E
42 200 N 42 200 N
42 100 N 42 100 N
34

0
0
0

E
34

0
0
0

E
33

9
0
0

E
33

9
0
0

E
33

8
0
0

E
33

8
0
0

E
34

2
0
0

E
34

2
0
0

E
34

3
0
0

E
34

3
0
0

E
EL
E
V
A
T
I
O
N

(
F
T
)
EL
E
V
A
T
I
O
N

(
F
T
)
6440
6450
6460
6470
6480
6440
6450
6460
6470
6480
0+00 1+00 2+00 2+51
110 FT PARKING / TRUCK
TURN AROUND
15 FT PERIMETER ROAD
40 FT TANK PAD
COLLECTION
CHANNEL4
5
1%1%
EXISTING GROUND TANK PAD CONTAINMENT
BERM / ANCHOR TRENCH
1
8 TANK PAD DOUBLE LINER SYSTEM
9
5
10
5
1V
3H
EL
E
V
A
T
I
O
N

(
F
T
)
EL
E
V
A
T
I
O
N

(
F
T
)
6440
6450
6460
6470
6480
6440
6450
6460
6470
6480
0+00 1+00 2+002+00
150 FT TANK PAD
TANK PAD CONTAINMENT
BERM / ANCHOR TRENCH
1
8
TANK PAD DOUBLE LINER SYSTEM
9
5EXISTING GROUND 10
5
5 FT
1.5 FT
2 FT MIN.
2
F
T
1 FT CLAY LINER
TANK PAD
DOUBLE LINER
ANCHOR TRENCH
PREPARED
SUBGRADE
1V
1.5H
1V
1.5H
LINED TANK PAD
FINISHED GRADE ON THE EAST
AND WEST SIDE, PERIMETER
ROAD ON THE NORTH
1.5 FT
TANK PAD DOUBLE LINER SYSTEM
9
5
10
5
LEGEND
NOTESREFERENCES
1.GRADING CONTOURS REFLECT TOP OF CLAY LINER FILL WITHIN LIMITS OF STAGE 4 LINER
EXPANSION, THE TANK PAD, AND SOLUTION CHANNEL. GRADING CONTOURS REFLECT
TOP OF STRUCTURAL FILL OUTSIDE OF THESE LIMITS.
2.TWO-FOOT CONTOUR BASE MAP PROVIDED BY LISBON VALLEY MINING
COMPANY, ACTUAL GROUND SURFACE EXPECTED TO VARY BY PLUS OR
MINUS ONE FOOT.
3.ORE IS CURRENTLY STACKED AND BEING LEACHED WITHIN STAGES 1,2 AND 3.
TOPOGRAPHY SHOWN IS REPRESENTATIVE OF ORE SURFACE.
PROPOSED GRADING CONTOURS (NOTE 1)
6410
6420
EXISTING GROUND TOPOGRAPHY (SEE REFERENCE 1)
CROSS SECTION IDENTIFIER
SHEET WHERE SECTION IS LOCATED
C
4
B
8
TANK PAD WEST-EAST SECTION B-B'
SCALE: 1"=15'
0
1
i
n
31407443.000

DRAWING
80
SALT LAKE CITY OFFICE
10876 S. RIVER FRONT PARKWAY, SUITE 250
SOUTH JORDAN, UTAH, 84095
USA
[+1] [phone]A2007-02-01 ISSUED FOR PERMITTING AND CONSTRUCTION JWRKFM KFM REK
B 2024-04-26 ISSUED FOR REVIEW JWRJWR REK DKF
0 2024-04-30 ISSUED FOR CONSTRUCTION JWRJWR REK DKF

LISBON VALLEY MINE
STAGE 4 HEAP LEACH FACILITY EXPANSION

LISBON VALLEY MINING COMPANY, LLC

TANK PAD AND TRUCK TURN AROUND PLAN AND SECTIONS
TITLE
PROJECT NO.REV.
PROJECTCLIENT
CONSULTANT
Pa
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:

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:
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3

P
M
REV.DESCRIPTIONYYYY-MM-DD PREPARED REVIEWED APPROVEDDESIGNED
SEAL
of
IF

T
H
I
S

M
E
A
S
U
R
E
M
E
N
T

D
O
E
S

N
O
T

M
A
T
C
H

W
H
A
T

I
S

S
H
O
W
N
,

T
H
E

S
H
E
E
T

S
I
Z
E

H
A
S

B
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E
N

M
O
D
I
F
I
E
D

F
R
O
M
:

A
N
S
I

D
0
FEET
30 60
1'' = 30'
STACKED ORE SURFACE CONTOURS (NOTE 3)
6410
6420
DRAFT
NOT FOR CONSTRUCTION
A
8
TANK PAD NORTH-SOUTH SECTION A-A'
SCALE: 1"=15'
0
FEET
15 30
1'' = 15'
1.EXISTING GROUND TOPOGRAPHY PROVIDED BY LISBON VALLEY MINING
COMPANY, LLC.
1
8
TANK PAD CONTAINMENT BERM DETAIL
SCALE: 1"=2'
0
FEET
42
1'' = 2'
TANK PAD AND TRUCK TURN AROUND PLAN VIEW
SCALE 1"=30'
STAGE 3/4
SEPARATION
BERM
1
234
5
67
8910111213
141516
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36 37 38 39 40 41 42
43 44 45
46 47 48
49 50 51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
6
4
6
0
6470
6490
6480
6
5
0
0
EXISTING
STAGE 3
LINER
345 2 1
102 103 104 105 106 107 108 109 110 111 112
113 114 115 116 117 118 119 120 121 122 123 124 125 126
127 128 129 130 131 132 133 134 135 136 137 138 139 140
141 142 143 144 145 146 147 148 149 150 151 152 153 154
155 156 157 158 159 160 161 162 163 164 165 166 167 168
169 170 171 172 173 174 175 176 177 178 179 180 181 182
183 184 185 186 187 188 189 190 191 192 193 194 195 196
197 198 199 200 201 202 203 204 205 206 207 208 209 210
211 212 213 214 215 216 217 218 219 220 221 222 223 224
225 226 227 228 229 230 231 232 233 234 235 236 237 238
239 240 241 242 243 244 245 246 247 248 249 250 251 252
253 254 255 256 257 258 259 260 261 262 263 264 265 266
267 268 269 270 271 272 273 274 275 276 277 278 279 280
281 282 283 284 285 286 287 288 289 290 291 292 293 294
295 296 297 298 299 300 301 302 303 304 305 306 307 308
309 310 311 312 313 314 315 316 317 318 319 320 321 322
323 324 325 326 327 328 329 330 331 332 333 334 335 336
337 338 339 340 341 342 343 344 345 346 347 348 349 350
351 352 353 354 355 356 357 358 359 360 361 362
363 364 365
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
0
1
i
n
31407443.000

DRAWING
90
SALT LAKE CITY OFFICE
10876 S. RIVER FRONT PARKWAY, SUITE 250
SOUTH JORDAN, UTAH, 84095
USA
[+1] [phone]A2007-02-01 ISSUED FOR PERMITTING AND CONSTRUCTION JWRKFM KFM REK
B 2024-04-26 ISSUED FOR REVIEW JWRJWR REK DKF
0 2024-04-30 ISSUED FOR CONSTRUCTION JWRJWR REK DKF

LISBON VALLEY MINE
STAGE 4 HEAP LEACH FACILITY EXPANSION

LISBON VALLEY MINING COMPANY, LLC

STAGE 4 CONTROL POINTS
TITLE
PROJECT NO.REV.
PROJECTCLIENT
CONSULTANT
Pa
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8

P
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REV.DESCRIPTIONYYYY-MM-DD PREPARED REVIEWED APPROVEDDESIGNED
SEAL
of
IF

T
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U
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N
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O
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O
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A
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C
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D
STAGE 4 LINER SURFACE CONTOURS
1
8
STAGE 4 LINER CONTROL POINT LOCATIONS
CONTROL POINT1010
1.PROPOSED STAGE 4 GRADING CONTOURS REFLECT TOP OF CLAY LINER FILL WITHIN LIMITS OF STAGE 4 LINER,
TOP OF STRUCTURAL FILL OUTSIDE OF THESE LIMITS.
2.STAGE 4 CELLS 1-5 ARE ~300 FT WIDE.
3.CONTROL POINT ELEVATIONS REPRESENT TOP OF CLAY LINER FILL.
4.CONTROL POINTS 1-70 REPRESENT THE PERIMETER TOE OF THE TOP OF CLAY LINER FILL.
5.CONTROL POINTS 102-365 REPRESENT THE TOP OF CLAY LINER FILL ON A 100-FT GRID.
6.CONTROL POINTS 501-584 REPRESENT THE NORTHING / EASTING COORDINATES OF THE SEPARATION BERM
CENTERLINE.
2 STAGE 4 CELL DESIGNATION
Point#Easting Northing Point El.
1 34,146.66 40,118.36 6,506.72
2 34,046.65 40,129.90 6,507.87
3 33,946.65 40,141.43 6,508.17
4 33,846.65 40,152.97 6,510.19
5 33,746.65 40,164.50 6,512.20
6 33,646.65 40,176.04 6,514.26
7 33,546.65 40,187.57 6,516.32
8 33,446.65 40,199.11 6,518.38
9 33,346.65 40,210.64 6,520.44
10 33,246.65 40,222.18 6,522.50
11 33,146.65 40,233.71 6,524.56
12 33,046.65 40,245.24 6,526.62
13 32,946.65 40,256.78 6,528.68
14 32,846.65 40,268.31 6,530.74
15 32,746.65 40,279.85 6,532.79
16 32,657.06 40,290.70 6,534.57
17 32,657.06 40,385.11 6,529.94
18 32,657.00 40,485.11 6,526.45
19 32,657.06 40,585.11 6,522.91
20 32,657.06 40,685.11 6,519.40
21 32,657.06 40,785.11 6,515.57
22 32,657.06 40,885.11 6,511.97
23 32,657.06 40,985.11 6,509.43
24 32,657.06 41,085.11 6,507.20
25 32,657.06 41,185.11 6,504.16
26 32,657.06 41,285.11 6,501.45
27 32,657.06 41,385.11 6,498.60
28 32,657.06 41,485.11 6,496.28
29 32,657.06 41,585.11 6,494.37
30 32,657.06 41,685.11 6,492.91
31 32,657.06 41,785.11 6,491.81
32 32,657.06 41,885.11 6,490.59
33 32,657.06 41,985.11 6,489.03
34 32,657.06 42,085.11 6,487.39
35 32,656.68 42,185.11 6,485.92
36 32,656.56 42,209.47 6,485.57
37 32,746.65 42,201.96 6,484.72
38 32,846.65 42,193.64 6,482.88
39 32,946.65 42,185.31 6,481.05
40 33,046.65 42,176.98 6,479.21
41 33,146.65 42,168.65 6,477.37
42 33,246.65 42,160.32 6,475.53
43 33,346.65 42,152.00 6,473.69
44 33,446.65 42,143.67 6,471.86
45 33,546.65 42,135.34 6,470.02
46 33,646.65 42,127.01 6,468.18
47 33,746.65 42,118.68 6,466.34
48 33,846.65 42,110.36 6,464.50
49 33,946.65 42,102.03 6,462.67
50 34,046.65 42,093.70 6,460.83
51 34,146.46 42,085.39 6,458.99
52 34,146.47 41,985.39 6,458.95
53 34,146.48 41,885.39 6,458.97
54 34,146.49 41,785.39 6,460.17
55 34,146.50 41,685.39 6,461.88
56 34,146.51 41,585.39 6,464.11
57 34,146.52 41,485.39 6,466.28
58 34,146.53 41,385.39 6,468.45
59 34,146.54 41,285.39 6,470.88
60 34,146.55 41,185.39 6,473.63
61 34,146.56 41,085.39 6,476.45
62 34,146.57 40,985.39 6,479.23
63 34,146.58 40,885.39 6,481.50
64 34,146.59 40,785.39 6,483.99
65 34,146.60 40,685.39 6,487.95
66 34,146.61 40,585.39 6,492.00
67 34,146.62 40,485.39 6,495.03
68 34,146.64 40,385.39 6,498.14
69 34,146.65 40,285.39 6,501.99
70 34,146.66 40,185.39 6,504.58
Point#Easting Northing Point El.
102 32,746.65 42,085.11 6,485.70
103 32,846.65 42,085.11 6,483.78
104 32,946.65 42,085.11 6,481.85
105 33,046.65 42,085.11 6,479.89
106 33,146.65 42,085.11 6,477.91
107 33,246.65 42,085.11 6,475.82
108 33,346.65 42,085.11 6,473.87
109 33,446.65 42,085.11 6,471.89
110 33,546.65 42,085.11 6,469.99
111 33,646.65 42,085.11 6,468.16
112 33,746.65 42,085.11 6,466.31
113 32,746.65 41,985.11 6,486.90
114 32,846.65 41,985.11 6,484.62
115 32,946.65 41,985.11 6,482.67
116 33,046.65 41,985.11 6,480.70
117 33,146.65 41,985.11 6,478.64
118 33,246.65 41,985.11 6,476.34
119 33,346.65 41,985.11 6,474.14
120 33,446.65 41,985.11 6,471.94
121 33,546.65 41,985.11 6,469.95
122 33,646.65 41,985.11 6,468.11
123 33,746.65 41,985.11 6,466.20
124 33,846.65 41,985.11 6,464.48
125 33,946.65 41,985.11 6,462.64
126 34,046.65 41,985.11 6,460.74
127 32,746.65 41,885.11 6,488.46
128 32,846.65 41,885.11 6,485.47
129 32,946.65 41,885.11 6,483.51
130 33,046.65 41,885.11 6,481.53
131 33,146.65 41,885.11 6,479.42
132 33,246.65 41,885.11 6,477.08
133 33,346.65 41,885.11 6,474.63
134 33,446.65 41,885.11 6,472.19
135 33,546.65 41,885.11 6,469.99
136 33,646.65 41,885.11 6,468.06
137 33,746.65 41,885.11 6,466.09
138 33,846.65 41,885.11 6,464.45
139 33,946.65 41,885.11 6,462.60
140 34,046.65 41,885.11 6,460.65
141 32,746.65 41,785.11 6,490.36
142 32,846.65 41,785.11 6,486.62
143 32,946.65 41,785.11 6,484.41
144 33,046.65 41,785.11 6,482.51
145 33,146.65 41,785.11 6,480.49
146 33,246.65 41,785.11 6,478.28
147 33,346.65 41,785.11 6,475.44
148 33,446.65 41,785.11 6,472.96
149 33,546.65 41,785.11 6,470.51
150 33,646.65 41,785.11 6,468.60
151 33,746.65 41,785.11 6,466.34
152 33,846.65 41,785.11 6,464.63
153 33,946.65 41,785.11 6,463.18
154 34,046.65 41,785.11 6,461.77
155 32,746.65 41,685.11 6,492.17
156 32,846.65 41,685.11 6,488.81
157 32,946.65 41,685.11 6,485.61
158 33,046.65 41,685.11 6,483.70
159 33,146.65 41,685.11 6,481.70
160 33,246.65 41,685.11 6,479.38
161 33,346.65 41,685.11 6,476.64
162 33,446.65 41,685.11 6,473.85
163 33,546.65 41,685.11 6,471.91
164 33,646.65 41,685.11 6,469.84
165 33,746.65 41,685.11 6,467.77
166 33,846.65 41,685.11 6,466.12
167 33,946.65 41,685.11 6,464.91
168 34,046.65 41,685.11 6,463.54
169 32,746.65 41,585.11 6,493.56
170 32,846.65 41,585.11 6,491.09
171 32,946.65 41,585.11 6,487.57
172 33,046.65 41,585.11 6,484.96
173 33,146.65 41,585.11 6,482.93
174 33,246.65 41,585.11 6,480.70
175 33,346.65 41,585.11 6,478.22
176 33,446.65 41,585.11 6,475.84
177 33,546.65 41,585.11 6,473.62
178 33,646.65 41,585.11 6,471.43
179 33,746.65 41,585.11 6,469.38
180 33,846.65 41,585.11 6,468.04
181 33,946.65 41,585.11 6,466.83
182 34,046.65 41,585.11 6,465.54
183 32,746.65 41,485.11 6,495.27
184 32,846.65 41,485.11 6,493.22
185 32,946.65 41,485.11 6,489.98
186 33,046.65 41,485.11 6,486.47
187 33,146.65 41,485.11 6,484.21
188 33,246.65 41,485.11 6,482.11
189 33,346.65 41,485.11 6,480.01
190 33,446.65 41,485.11 6,478.06
191 33,546.65 41,485.11 6,475.69
192 33,646.65 41,485.11 6,473.27
193 33,746.65 41,485.11 6,471.53
194 33,846.65 41,485.11 6,470.29
195 33,946.65 41,485.11 6,468.94
196 34,046.65 41,485.11 6,467.58
197 32,746.65 41,385.11 6,497.42
198 32,846.65 41,385.11 6,495.16
199 32,946.65 41,385.11 6,492.71
200 33,046.65 41,385.11 6,489.05
201 33,146.65 41,385.11 6,485.59
202 33,246.65 41,385.11 6,483.79
203 33,346.65 41,385.11 6,481.98
204 33,446.65 41,385.11 6,479.99
205 33,546.65 41,385.11 6,477.85
206 33,646.65 41,385.11 6,475.66
207 33,746.65 41,385.11 6,474.24
208 33,846.65 41,385.11 6,472.67
209 33,946.65 41,385.11 6,471.24
210 34,046.65 41,385.11 6,469.89
211 32,746.65 41,285.11 6,499.90
212 32,846.65 41,285.11 6,497.61
213 32,946.65 41,285.11 6,495.09
214 33,046.65 41,285.11 6,492.12
215 33,146.65 41,285.11 6,488.32
216 33,246.65 41,285.11 6,485.66
217 33,346.65 41,285.11 6,483.84
218 33,446.65 41,285.11 6,482.04
219 33,546.65 41,285.11 6,479.97
220 33,646.65 41,285.11 6,478.28
221 33,746.65 41,285.11 6,476.97
222 33,846.65 41,285.11 6,475.50
223 33,946.65 41,285.11 6,474.06
224 34,046.65 41,285.11 6,472.34
225 32,746.65 41,185.11 6,502.61
226 32,846.65 41,185.11 6,500.25
227 32,946.65 41,185.11 6,497.85
228 33,046.65 41,185.11 6,495.07
229 33,146.65 41,185.11 6,491.87
230 33,246.65 41,185.11 6,488.62
231 33,346.65 41,185.11 6,485.80
232 33,446.65 41,185.11 6,483.89
233 33,546.65 41,185.11 6,482.09
234 33,646.65 41,185.11 6,480.56
235 33,746.65 41,185.11 6,479.38
236 33,846.65 41,185.11 6,478.24
237 33,946.65 41,185.11 6,476.78
238 34,046.65 41,185.11 6,475.20
239 32,746.65 41,085.11 6,505.06
240 32,846.65 41,085.11 6,502.69
241 32,946.65 41,085.11 6,500.54
242 33,046.65 41,085.11 6,498.07
243 33,146.65 41,085.11 6,495.28
244 33,246.65 41,085.11 6,492.26
245 33,346.65 41,085.11 6,489.18
246 33,446.65 41,085.11 6,485.95
247 33,546.65 41,085.11 6,483.94
248 33,646.65 41,085.11 6,482.60
249 33,746.65 41,085.11 6,481.54
250 33,846.65 41,085.11 6,480.46
251 33,946.65 41,085.11 6,479.34
252 34,046.65 41,085.11 6,478.14
253 32,746.65 40,985.11 6,508.02
254 32,846.65 40,985.11 6,504.95
255 32,946.65 40,985.11 6,502.79
256 33,046.65 40,985.11 6,500.73
257 33,146.65 40,985.11 6,498.28
258 33,246.65 40,985.11 6,495.50
259 33,346.65 40,985.11 6,492.68
260 33,446.65 40,985.11 6,489.72
261 33,546.65 40,985.11 6,486.20
262 33,646.65 40,985.11 6,484.92
263 33,746.65 40,985.11 6,483.74
264 33,846.65 40,985.11 6,482.65
265 33,946.65 40,985.11 6,481.52
266 34,046.65 40,985.11 6,480.42
267 32,746.65 40,885.11 6,510.27
268 32,843.68 40,885.11 6,507.88
269 32,946.65 40,885.11 6,504.84
270 33,046.65 40,885.11 6,502.94
271 33,146.65 40,885.11 6,500.92
272 33,246.65 40,885.11 6,498.50
273 33,346.65 40,885.11 6,495.74
274 33,446.65 40,885.11 6,493.06
275 33,546.65 40,885.11 6,490.45
276 33,646.65 40,885.11 6,488.51
277 33,746.65 40,885.11 6,486.59
278 33,846.65 40,885.11 6,485.17
279 33,946.65 40,885.11 6,483.86
280 34,046.65 40,885.11 6,482.69
281 32,746.65 40,785.11 6,512.82
282 32,846.65 40,785.11 6,510.24
283 32,946.65 40,785.11 6,507.89
284 33,046.65 40,785.11 6,505.29
285 33,146.65 40,785.11 6,503.15
286 33,246.65 40,785.11 6,501.11
287 33,346.65 40,785.11 6,498.80
288 33,446.65 40,785.11 6,496.01
289 33,546.65 40,785.11 6,494.13
290 33,646.65 40,785.11 6,492.39
291 33,746.65 40,785.11 6,490.56
292 33,846.65 40,785.11 6,488.80
293 33,946.65 40,785.11 6,487.09
294 34,046.65 40,785.11 6,485.47
295 32,746.65 40,685.11 6,516.65
296 32,846.65 40,685.11 6,512.65
297 32,946.65 40,685.11 6,510.34
298 33,046.65 40,685.11 6,508.34
299 33,146.65 40,685.11 6,505.80
300 33,246.65 40,685.11 6,503.44
301 33,346.65 40,685.11 6,501.67
302 33,446.65 40,685.11 6,499.63
303 33,546.65 40,685.11 6,497.35
304 33,646.65 40,685.11 6,495.33
305 33,746.65 40,685.11 6,493.89
306 33,846.65 40,685.11 6,492.49
307 33,946.65 40,685.11 6,490.82
308 34,046.65 40,685.11 6,489.28
309 32,746.65 40,585.11 6,520.37
310 32,846.65 40,585.11 6,516.70
311 32,946.65 40,585.11 6,513.05
312 33,046.65 40,585.11 6,510.88
313 33,146.65 40,585.11 6,508.79
314 33,246.65 40,585.11 6,506.37
315 33,346.65 40,585.11 6,504.12
316 33,446.65 40,585.11 6,502.52
317 33,546.65 40,585.11 6,500.60
318 33,646.65 40,585.11 6,498.40
319 33,746.65 40,585.11 6,496.90
320 33,846.65 40,585.11 6,495.48
321 33,946.65 40,585.11 6,494.12
322 34,046.65 40,585.11 6,493.03
323 32,746.65 40,485.11 6,523.88
324 32,846.65 40,485.11 6,520.32
325 32,946.65 40,485.11 6,516.75
326 33,046.65 40,485.11 6,513.84
327 33,146.65 40,485.11 6,511.52
328 33,246.65 40,485.11 6,509.34
329 33,346.65 40,485.11 6,507.13
330 33,446.65 40,485.11 6,504.99
331 33,546.65 40,485.11 6,503.24
332 33,646.65 40,485.11 6,501.56
333 33,746.65 40,485.11 6,500.22
334 33,846.65 40,485.11 6,498.83
335 33,946.65 40,485.11 6,497.40
336 34,046.65 40,485.11 6,496.11
337 32,746.65 40,385.11 6,527.40
338 32,846.65 40,385.11 6,524.05
339 32,946.65 40,385.11 6,520.55
340 33,046.65 40,385.11 6,518.09
341 33,146.65 40,385.11 6,515.31
342 33,246.65 40,385.11 6,512.76
343 33,346.65 40,385.11 6,510.51
344 33,446.65 40,385.11 6,508.36
345 33,546.65 40,385.11 6,505.82
346 33,646.65 40,385.11 6,503.97
347 33,746.65 40,385.11 6,502.98
348 33,846.65 40,385.11 6,502.01
349 33,946.65 40,385.11 6,500.80
350 34,046.65 40,385.11 6,499.48
351 32,946.65 40,285.11 6,526.72
352 33,046.65 40,285.11 6,523.86
353 33,146.65 40,285.11 6,521.02
354 33,246.65 40,285.11 6,518.31
355 33,346.65 40,285.11 6,515.50
356 33,446.65 40,285.11 6,512.83
357 33,546.65 40,285.11 6,510.00
358 33,646.65 40,285.11 6,508.22
359 33,746.65 40,285.11 6,506.25
360 33,846.65 40,285.11 6,504.75
361 33,946.65 40,285.11 6,503.73
362 34,046.65 40,285.11 6,502.91
363 33,846.65 40,185.11 6,508.80
364 33,946.65 40,185.11 6,507.44
365 34,046.65 40,185.11 6,506.02
Point#Easting Northing Point El.Point#Easting Northing Point El.Point#Easting Northing
501 32,958.65 40,255.39
502 32,958.64 40,335.11
503 32,958.63 40,435.11
504 32,958.62 40,535.11
505 32,958.61 40,635.11
506 32,958.60 40,735.11
507 32,958.59 40,835.11
508 32,958.58 40,935.11
509 32,958.57 41,035.11
510 32,958.56 41,135.11
511 32,958.55 41,235.11
512 32,958.54 41,335.11
513 32,958.53 41,435.11
514 32,958.52 41,535.11
515 32,958.51 41,635.11
516 32,958.50 41,735.11
517 32,958.49 41,835.11
518 32,958.48 41,935.11
519 32,958.47 42,035.11
520 32,958.44 42,135.11
521 32,958.41 42,184.33
522 33,258.65 40,220.79
523 33,258.64 40,335.11
524 33,258.63 40,435.11
525 33,258.62 40,535.11
526 33,258.61 40,635.11
527 33,258.60 40,735.11
528 33,258.59 40,835.11
529 33,258.58 40,935.11
530 33,258.57 41,035.11
531 33,258.56 41,135.11
532 33,258.55 41,235.11
533 33,258.54 41,335.11
534 33,258.53 41,435.11
535 33,258.52 41,535.11
536 33,258.51 41,635.11
537 33,258.50 41,735.11
538 33,258.49 41,835.11
539 33,258.48 41,935.11
540 33,258.47 42,035.11
541 33,258.44 42,135.11
542 33,258.42 42,159.34
543 33,558.66 40,186.19
544 33,558.65 40,235.11
545 33,558.64 40,335.11
546 33,558.63 40,435.11
547 33,558.62 40,535.11
548 33,558.61 40,635.11
549 33,558.60 40,735.11
550 33,558.59 40,835.11
551 33,558.58 40,935.11
552 33,558.57 41,035.11
553 33,558.56 41,135.11
554 33,558.55 41,235.11
555 33,558.54 41,335.11
556 33,558.53 41,435.11
557 33,558.52 41,535.11
558 33,558.51 41,635.11
559 33,558.50 41,735.11
560 33,558.49 41,835.11
561 33,558.48 41,935.11
562 33,558.47 42,035.11
563 33,558.44 42,134.36
564 33,858.66 40,151.58
565 33,858.65 40,235.11
566 33,858.64 40,335.11
567 33,858.63 40,435.11
568 33,858.62 40,535.11
569 33,858.61 40,635.11
570 33,858.60 40,735.11
571 33,858.59 40,835.11
572 33,858.58 40,935.11
573 33,858.57 41,035.11
574 33,858.56 41,135.11
575 33,858.55 41,235.11
576 33,858.54 41,335.11
577 33,858.53 41,435.11
578 33,858.52 41,535.11
579 33,858.51 41,635.11
580 33,858.50 41,735.11
581 33,858.49 41,835.11
582 33,858.48 41,935.11
583 33,858.47 42,035.11
584 33,858.46 42,109.37
CONTROL POINTS (SEE NOTES 4-6)
LEGEND
NOTES