2010-07-27_PERMIT FILE - M2009076 ‎(9)‎

• Permit No: M2009076
• IBM Index Class Name: Permit File
• Doc Date: 7/27/2010
• Doc Name: Ex. E, Map E12, Leachate Collection Barrier
• From: Venture Resources
• To: DRMS
• Email Name: ACS
• Media Type: M
• Archive: No

This design models existing grade conditions after successfully excavating footing down to solid bedrock. The footing
is cast directly onto bedrock, incorporating #8 rebar pins set on 2' centers into bedrock (see below).
#5 Gr 60 Rebar
12" OC Horz.
12 OC Vert.
#5 Gr 60 Rebar
12 OC Horz.
18" OC Vert.
22'
4'
2'
•
"Wet" Side
Ir #5 Gr 60 Rebar & #8 Gr 60 Rebar, 3' -4" Hook
12" OC Horz. 6" OC Vert.
3" Overflow to Sediment Pond
#5 Gr 60 Rebar
12 �� OC Horz.
18" OC Vert.
#8 Gr 60 Rebar x 4'
Drilled and Grouted 2'
into Solid Rock @ 2' OC
#5 Gr 60 Rebar
12" OC Horz.
6" OC Vert.
(sump omitted from view for clarity)
24 " 1.5" Leachate Recycle
8 11 (pump discharge)
6' -8'
3" Overflow
d 8' -0"
#5 Gr 60 Rebar
12" OC Horz.
12" OC Vert.
Step from 10" to 8" Thick Wall
#5 Gr 60 Rebar
12 �� OC Horz. #5 Gr 60 Rebar & #8 Gr 60 Rebar, 3' -4" Hook
6" OC Vert. 12" OC Horz. 6" OC Vert.
Backfill on "dry"
line
side (south) shall consist
of earth and rock excavated from "wet" side. Width of back fill at top
of wall shall
be a
minimum of 12' to allow
settling
for vehicle
of the
traffic. Sloped
side
of
backf
ll shall
W��
be revegatated
to
prevent erosion.
The composite liner system shall be affixed to the continuous footing as per the liner submittal details in Exhibit C.
The leachate collection
line
shall be
connected to a sump connected to the GeoComposite Liner leachate drain,
to facilitate dewatering
and
settling
of the
deposited
tailings.
� rt
The leachate will be pumped back to the mill as recycled process water.
42189
2 7 ,1 a
V
O POO
�
a c
MCI
� rt
W��
c
�o
IZ
�
�
o
N
U
�
rt
Old
W
c:.
..
J
G
O
0.
P6
a�
a
V
O POO
El
Top of Structure
Datum 8,320.00' Elev.
10"
10" ..
(i
4" Leachate Collection, wet sump.
14' - 8 "
:' 1 1 ".e. 1.::
Composite liner system installed
on top of continuous footing.
Refer to Exhibit C for liner
submittal details.
W��
�o
N
�
�
WOO
N
U
�
ago
W
/
P"
..
O
P6
a
El
Top of Structure
Datum 8,320.00' Elev.
10"
10" ..
(i
4" Leachate Collection, wet sump.
14' - 8 "
:' 1 1 ".e. 1.::
Composite liner system installed
on top of continuous footing.
Refer to Exhibit C for liner
submittal details.