2023-01-09_REVISION - M2021052 ‎(18)‎

• Permit No: M2021052
• IBM Index Class Name: Revision
• Doc Date: 1/9/2023
• Doc Name Note: Rule 6.5 - Geotechnical Stability Exhibit
• Doc Name: Adequacy Review Response
• From: IHC Scott
• To: DRMS
• Type & Sequence: AM1
• Email Name: CCW
• Email Name: ACY
• Email Name: THM
• Media Type: D
• Archive: No

-114
Graphic Scale o
MINING PROGRESSION EXHIBIT NOTES: LEGEND 0 100 200 400 N
WET EX. LANDSCD
1. SLOPE OF THE MINING HEADWALL DURING EXCAVATION SHALL BE AT THE ANGLE OF REPOSE, -�
EXPECTED TO BE 3:1 BUT SHALL NOT EXCEED 2:1. EX. WETLAND AND BUFFER In U.S.Feet: 1"=200' U)00
2. WETLAND SLOPE AREA IS A MIN. 6 FT AROUND WATER SURFACE AT 10% SLOPE EX. GRAVEL a ov
::j�1 =
3. WETLAND SLOPE AREAS SHALL BE RECLAIMED WITH STOCKPILED TOPSOIL AND REVEGETATED WITH PROP. E
PAVEMENT cn �
THE WETLAND SEED AND PLANTING MIX SHOWN IN TABLE 2 ON SHEET 2. ----PROPERTY BOUNDARY J'L a
X_Cn�O �
4. SEE TYPICAL MINING STRATA BASED ON GEOTECH BORING LOGS IN DETAIL I/11. 100 YR. FLOODPLAIN o '-,
5. TEMPORARY WET GRAVEL STOCKPILES WILL BE FORMED NEAR THE EXCAVATION BOUNDARY THEN -SURFACE WATER a o 'n N
MOVED TO THE STOCKPILING AREA DEPICTED ON THIS SHEET AFTER THEY DRY OUT. �� -.„. s rn
, .r.-:.r_' .�,r�S;jjfSr-- 00 C O
,`wl
6 IN TOPSOIL FOR ' ;��`'''=-:� �r �� -- , r .rt o
5 FT REVEGETATION ----- l " + o 0
��~ WETLAND SLOPE AREA
30% COMPLETE, APPROX. 15,353 SF -
in INSTALL STRAW WATTLE (SOLID GREEN HATCH),
�\ AT OUTER TOE OF BERM
r SEE DETAIL H/10
•"
OVERBURDEN '
USED FOR BERMS AFFECTED LANDS. -LDA COMPLETE -
g EX. ( A.K.A. LIMITS OF DISTURBED AREA) _ r'-� _ s.:
GRADE 'i'
SEE PLAN I MIN. 35-FT AWAY FROM EX. j;, �� ,;=''ly``_ J;'
r
WETLAND BOUNDARIES 0'
WETLAND NOTE: COMPACT OVERBURDEN IN MAX. 8 INCH LIFTS -
N SLOPE AREA TO 95% PROCTOR DENSITY, ROUGHEN SURFACE PER
N DETAIL G/10, PRIOR TO APPLYING TOPSOIL AND REVEG. p /
SECTION A—A ` � ---------
A BERM CONSTRUCTION AND REVEGETATION DETAIL V; - � _ >� t
6 N.T.S. i I are l
y l TOP OF BERM
SEE DETAILS A/6 AND `VO
t TEMPORARY
x / ON T SHEET ✓ L W -
ti C 6 HIS SH `+ +!
WET GRAVEL ,' I - _ CD, �**MrrF
STOCKPILE `, OU L
c b
r EARTHEN BERM �` ` V
(SOLID GRAY HATCH) I -
START MINING ON NORTH SIDE OF CHANNEL, TURN
y• + // \ t '�- THE CHANNEL INTO THE NEWLY EXCAVATED PIT,
5� 14p i I / > :CONTINUE MINING CLOCKWISE THROUGH THE AREA. 4_
:-- STOCKPILING AREA
\ MINE EXPANSION WATER DRAINS FROM GRAVEL
STOCKPILE OVERLAND AND $C ,r--- =r 0.57 ACRES (25,000 SF) I APPROX. 433 LF (9,873 SF) OF CHANNEL
MINING INFILTRATES TO SUBSURFACE '� _�i""'-'�- e "INCORPORATED INTO WET MINING FOOTPRINT. a
HEADWALL U ---
? r,' MAINTAIN EX. CROSSING TO - N N N
SECTION B—B OPERATIONS AREA FOR`GRAVEL PROCESSING, FUEL r r \ ALLOW VEHICLE ACCESS TO_- 2
STORAGE, PARKING, OFFICE, AND SALES AREA t \ MINING AREA l o
o B TYPICAL ACTIVE MINING �, APPROX. 1.93 ACRES 4i3Y \ \\ N -- a 0D ro \ 2
= 6 N.T.S. SEE DETAIL J/12 FOR TYPICAL PROCESSING LAYOUT \ \\ o• r, A
/ I SEE SHEET K/13 FOR TYPICAL SPILL PREVENTION \ \ p s \
rn
i
CONTROL AND CONTAINMENT FUEL STORAGE DETAILS o.;"
E BERM, SEE DETAIL A/6 g A N
, I, 53 0 - \ \\� r V)
\�\ 00 ' o 0 oEX
z
04
/ GRADE
WETLAND I I ti �' , - , j O '�-��•'- /- Job No. 2019-341.002
,y1 SLOPE AREA g '`' . - 1 � ,.`` Drawn b RPF f
I -` %'-' "'i EX. GAS LINE
Date: 01/04/2023 u
TAILWATER I - - *, - - >;\ �% 't_. (OWNED BY URSA RESOURCES) QC ABF PE: RPF o
g CHANNEL •j- 1 1 File: a-
LOCATION ` _ _ - - _ %/ - RiflePit-Exhibits
/ 1 •' �— I ii ca Title:
NOTES: WETLAND SLOPE AREA WILL BE VARIES - �,<y i_; ' �� EX. NON-POTABLE WATER
_r _' OWNED BY URSA RESOURCES
N RECLAIMED WITH STOCKPILED TOPSOIL `,-h� ! �r -;: ( ) Mining Progression
1 AND REVEGETATED PER TABLE 2 ON EX. WETLANDS -- / �� ! _____''y, �'�' Exhibit-30%
SHEET 2 BOUNDARY �' ` _ '%; may ;
SECTION C—C I -- .:y,;� _ +'` ' Ltd MINE ENTRANCE Dwg No.
rc RECLAIMED (LAT, LONG) _ (39.533805', -107.692804')
6
i 6 N.T.S. - SEE ALSO SECTION F/8, SHT 8Of 13
-
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