NCG020897_Site Map_20210716

CONSTRUCTION SEQUENCE MINING ACTIVITY
I
PHASE 1
1. PRIOR TO COMMENCEMENT OF CONSTRUCTION ACTIVITIES CONTACT NCDEQ LAND QUALITY SECTION (919) 7914200.
2. INSTALL CONSTRUCTION ENTRANCE ON ELMER MOORE ROAD PER PLAN SEE SHEETCS.
3. INSTALL SILT FENCE ALONG ACCESS ROAD PER PLAN WITH SILT FENCE OUTLETS. INSTALL CULVERT#1 8 #2.
4. INSTALL PERMANENT DIVERSIONS #12-19. STABILIZE AND SEED ALL SLOPES IMMEDIATELY. ONLY CLEAR AS NECESSARY TO INSTALL
DIVERSIONS. MAINTAIN SILT FENCE AND SILT FENCE OUTLETS DOWN STREAM UNTIL TEMPORARY/PERMANENT LINING, AND GOOD
GROUND COVER ON FILL SLOPES IS ESTABLISHED
5. INSTALL SILT FENCE PER PLAN BELOW ALL PERMANENT/TEMPORARY DIVERSIONS AND BASINITRAPS W/ SILT FENCE OUTLETS IN LOW
AREAS PER PLAN.
6. INSTALL SILT FENCE BELOW HAUL ROAD W/ SILT FENCE OUTLETS IN LOW AREAS PER PLAN.
7. INSTALL SKIMMER BASIN #1, 2, 3. STABILIZE AND SEED ALL SLOPES IMMEDIATELY. ONLY CLEAR AS NECESSARY TO INSTALL BASINS.
MAINTAIN SILT FENCE AND SILT FENCE OUTLETS DOWN STREAM UNTIL GOOD GROUND COVET IS ESTABLISHED
8. INSTALL TEMPORARY DIVERSIONS # 1,2,5,6,8,9 PER PLAN. STABILIZE AND SEED ALL SLOPES IMMEDIATELY. ONLY CLEAR AS NECESSARY
TO INSTALL DIVERSIONS. MAINTAIN SILT FENCE AND SILT FENCE OUTLETS DOWN STREAM UNTIL TEMPORARY/PERMANENT LINING, AND
GOOD GROUND COVER ON FILL SLOPES IS ESTABLISHED.
9. INSTALL HAUL ROAD PER SHEET C-6 Wl PERMANENT DIVERSIONS # 20-23 WTH OUTLET PROT[:CTION. INSTALL CULVERT 93 AND CULVERT
#4 (TEMPORARY STREAM CROSSING)
10, BEGIN CLEARING NECESSARY AREAS TO INSTALL PLANT SITE AND BEGIN REMOVAL OF OVERBURDEN FROM PIT FOR FILL MATERIAL.
ONCE GRADE IS MET ON THE PLANT SITE REMOVE TO # 8,9 ALONG WITH SKIMMERN BASIN #3 ND INSTALL PDA 7 W/ CULVERT#5.
MAINTAIN SILT FENCE AND SILT FENCE OUTLETS DOWN STREAM UNTIL TEMPORARY/PERMANENT LINING, AND GOOD GROUND COVER
ON FILL SLOPES IS ESTABLISHED.
11. MAINTAIN ALL EROSION CONTROL MEASURES WEEKLY AND AFTER ANY STORM EVENTS.
12. ONCE PLANT SITE, SITE ACCESS ROAD (PERMANENT DIVERSIONS CONSTRUCTED), PIT HAUL ROAD AND SCALE HOUSE SITE GRADES ARE
MET AND ALL SLOPES STABILIZED AND SEEDED. BEGIN CONSTRUCTING BERMS PER PLAN. MAINTAIN ALL DOWNSTREAM DIVERSIONS
AND SILT FENCE UNTIL GOOD GROUND COVER IS ESTABLISHED.
13. ONCE BERMS ARE COMPLETE AROUND PLANT SITE AND 10-YR PIT AND ARE STABILIZED AND SEEDED. MAINTAIN SILT FENCE UNTIL THIS
ACHIEVED. REMOVE TEMPORARY DIVERSIONS # 1, 2 AND TEMPORARY SKIMMER BASIN #1. MAINTAIN ALL DOWNSTREAM DIVERSIONS AND
SILT FENCE UNTIL GOOD GROUND COVER IS ESTABLISHED.
14. INSTALL TEMPORARY DIVERSIONS # 3, 4. STABILIZE AND SEED ALL SLOPES IMMEDIATELY. ONLY CLEAR AS NECESSARY TO INSTALL
DIVERSIONS. MAINTAIN SILT FENCE AND SILT FENCE OUTLETS DOWN STREAM UNTIL TEMPORARY/PERMANENT LINING, AND GOOD
GROUND COVER ON FILL SLOPES IS ESTABLISHED.
15. INSTALL TEMPORARY SKIMMER BASIN 94, 5. STABILIZE AND SEED ALL SLOPES IMMEDIATELY. ONLY CLEAR AS NECESSARY TO INSTALL
BASINS. MAINTAIN SILT FENCE AND SILT FENCE OUTLETS DOWN STREAM UN71L GOOD GROUND COVER IS ESTABLISHED
16. INSTALL TEMPORARY DIVERSIONS # 10, 11. STABILIZE AND SEED ALL SLOPES IMMEDIATELY. ONLY CLEAR AS NECESSARY TO INSTALL
DIVERSIONS. MAINTAIN SILT FENCE AND SILT FENCE OUTLETS DOWNSTREAM UNTIL TEMPORARY/PERMANENT LINING, AND GOOD
GROUND COVER ON FILL SLOPES IS ESTABLISHED.
17. ONCE PLANT SITE AND BERMS ARE CONSTRUCTED BEGIN PLACING OVERBURDEN IN THE OVERBURDEN AREA. MAINTAIN ALL EROSION
CONTROL MEASURES WEEKLY AND AFTER ANY STORM EVENTS UNTIL FINAL MAX FILL IS MET. STABILIZE AND SEED ALL SLOPES AND
DENUDED AREAS.
14. ONCE GOOD GROUND COVER IS ESTABLISHED AND NO RUTTING OF SLOPES IS OCCURRING REMOVE ALL EROSION CONTROL MEASURES
WHILE MAINTAINING SILT FENCE ON DOWNSTREAM SIDE.
15. DEWATER ALL SKIMMER BASINS AND SEDIMENT TRAPS MATH SILT BAG PER DETAIL.
16, MAINTAIN SILT FENCE AFTER MAJOR RAIN EVENTS.
17. STABILIZE AND SEED ALL DENUDED AREAS IN WHICH WORK HALL NOT RECOMMENCE WITHIN 7 WORKING DAYS OR 14 CALENDAR DAYS,
18. CALL NCDEQ LAND QUALITY SECTION FOR INSPECTION (919) 7914200.
PHASE 2
1. BEGIN MINING ACTIVITIES.
2. TEMPORARY SEED OVERBURDEN AREAS THAT WALL BE DENUDED FOR 30 DAYS OR MORE.
3. MAINTAIN ALL EROSION CONTROL DEVICES WEEKLY AND AFTER MAJOR STORM EVENTS.
4. CALL NCDEQ LAND QUALITY SECT ION FOR INSPECTION (919) 7914200.
1< ALL DENUDED AREAS LEFT INACTIVE BETWEEN PERIODS OF GRADING
ACTIVITY SHALL BE TEMPORARILY SEEDED VATH IN 15 MARx NGS DAYS
OR 30 CALENDAR DAYS, SHICHEVER IS SHORTER. SEE SEEDING
SCHEDULE IN DETAILS.
�. OVERBURDEN PILE TO BE CONSTRUCTED AND STABILIZED FROM
BOTTOM PER ABOVE DETAIL AS FILLED. ONCE FINAL LIFT IS REACHED -
THELOWER SLOPES AN D BENCH ES SHALL BE COMPLETED MEETING
THE RECLAMATION PUN).
j. FOR FINAL STABILIZATION OF FILL SLOPES, GRADE TO 2I SLOPE,
COVER wTH TOPSOIL. SEED AND MULCH. -
WASTE PILE RECLAMATION
(TYP)
NTS
EROSION CONTROL LEGEND
SEDIMENT BASIN
WIER BAFFLES
ROCK CHECK DAMS
SILT FENCE SF
TEMPORARY DIVERSION DITCH D
OUTLET PROTECTION
J-HOOK W/ SILT FENCE OUTLET
SILT FENCE OUTLET
DISTURBED AREAS
TAILINGS/SEDIMENT PONDS
1.4 AC
STOCKPILES
3.0 AC
OVERBURDEN STOCKPILE
6.0 AC
PROCESSING AREA/HAUL ROADS
4.3 AC
MINE EXCAVATION
10.0 AC
OTHER MISC EXCAVATION
16.1 AC
(BERMS, DIVERSIONS, ETC.)
TOTAL AFFECTED AREA
40.8 AC
LEGEND
ACTIVE PERMIT BOUNDARY
EXISTING CONTOUR - - -
EXISTING BUFFER
AFFECTED AREA
CREEK
BERM ..
POND C�
SKIMMER BASIN #4
TOP DIM= 30 x 60 1
BOTTOM DIM= 12 x 42
POOL DEPTH 3.0' /
TOP EL= 485.0
BOTTOM EL= 480.0 /
WEIR EL= 483.0
VOL PROPOSED= 3456 CF�_i \ \\\
VOL REQUIRED- 2880 CF
WEIR D=2.0'
WEIR LINING=CLASS A RIP RAP
J WEIR STONE D=9"
EMERGENCY SPILLWAY TO BE CONSTRUCTED IN CUT TEMPORARY
SKIMMER SIZE=4" SKIMMER BASIN 05'T�1<
SKIMMER ORFICE=1.0" TOP DIM= 41 x 82
BAFFLES= 3 BOTTOM DIM= 23 x 64 \
DIVERSION INLET PROTECTION POOL DEPTH=3.0'
La=12.0' TOP EL= 480.0
EXTEND TO BOTTOM BOTTOM EL= 475.0
C W=9.0' WEIR EL=478.0
STONE O-CLASS A RIP RAP VOL PROPOSED= 7248 CF J
D=1.0' VOL REQUIRED= 6650 OF
CHANNEL ID
CHANNELSLOPE
SIDI SLOPE
PROPOSED DIVERSION TABLE
S CHANNEL DEPTH TEMPORARY LINING
PERMANENT LINING
LINING DEPTH
TOO
4.4 %
3:1
2.0 FT
CLASS A RIP RAP
CLASS A RIP RAP
1,0 FT
TD42
0.5 %
3:1
2.5 FT
STRAW Wf NETTING
BERMUDAGRASS
-
PD#3 CLEAN WATER
10.0 %
3:1
2.0 FT
CLASS A RIP RAP
CLASS A RIP RAP
1.0 FT
PD#4 CLEAN WATER
12.0 %
3:1
2.0 FT
CLASS B RIP RAP
CLASS B RIP RAP
1.5 FT
TD95 CLEAN WATER
6.8 %
3:1
2.0 FT
CLASS A RIP RAP
CLASS A RIP RAP
1.0 FT
TD96 CLEAN WATER
0.5 %
3:1
2.5 FT
STRAW W(NETTING
BERMUDAGRASS
-
PD#7
2.0 %
3:1
2.0 FT
CLASS A RIP RAP
CLASS A RIP RAP
1.0 FT
TONS
4.1 %
3:1
2.0 FT
CLASS A RIP RAP
CLASS A RIP RAP
1.0 FT
TD#9
2.9 %
3:1
2.0 FT
STRAW W/ NETTING
BERMUDAGRASS
-
TD#10
0.5 %
3:1
1 2.0 FT
STRAW W/ NETTING
BERMUDAGRASS
-
TD911
1.0 %
3:1
2.0 FT
STRAW W/ NETTING
BERMUDAGRASS
-
MPORARY 1 � �--
R BASIN #3 'I �I' ACCESS ROAD
M= 53 x 106 ! 1 I SEE SHEET C-5 /
! -- AFFECTED AREA TYP
IM= 35 x 88 PLAN/PROFILE (TYP)
❑EPTH=3.0'� 40.8 AC+I• _
P EL- 495.0'
MEL- 490.0
R EL= 493.0
)= 13047 CF I - 510
+ + --- `\
EI R L= 15 OF 'i 1\ + ++ + + ++ 1 �\
VEIR D= 2.0 ! +
i A RIP RAP TD #9
TED IN
ER S2E=U4" I CHECK DAM (TYP � ! + \
)RFICE=1.6' \ +
TD #8 I \ \
3AFR ES= 3 ' 1 \ + 500 )
20TECTION i I ,\ +
LaT1O
f0 BOTTOM � + o ' + i
W=9.0'J� LANT SITE ++ CULVERT#5 _
3 A RIP RAP1.0' q .� 1..3 AC + 50 LF 15" RCP @ 1.0%
UTLET PROTECTION #9
\�_ SILT FENCE OUTLET (TYP) + 500 W=�5'
1 / PD #4 (CLEAN WATER1.n,�,L-v„%;; ?D #7 + STONE 0= CLASS 1 RIP RAP
t� STONE D= 1.5
�
ERMANENT \
SKIMMER BASIN #2 WR RISER 1
TOP DIM= 92 x 184 I
m BOTTOM DIM= 74 x 166
VBBARRELLOUTLET PROTECTION POOL DEPTH=3.0'
TOPEL= 494.5
BOTTOM EL=485.0
STONE O=CLASS B RIP RAP PRINCIPAL SPILLWAY EL= 491.0
j 13=1.5' WEIR EL=492.5
BASIN TO BE LINED WITH CLASS A RIP RAP \ -
'_ANWATER) �;� \W \510/ VOL PROPOSED=156288 CF
11 \ \ m OVERSIZED FOR PLANT OPERATIONS -- -
)AM TYP �/ VOL REQUIRED=42840 CF
(TYP), m -WEIR L=24.0
W / WEIRD=2.0'
_EANWATER) + _ - i' WEIR LINING=CLASS A RIP RAP
WEIR STONE D=9"
_ EMERGENCY SPILLWAY TO BE CONSTRUCTED IN CUT �\
)IN \ '� J / SKIMMER SIZE= 8"
\\ SKIMMER ORFICE=6.6'
RE -� / RISER
LSIZE=.36"C
- `"�.�"'tp•L\A f CMP
BARREL 512E=.36" CMP
R / ; CONCRETE BASE= 5.5E x 5.5E x 1.0'
BAFFLES=3
DIVERSION INLET PROTECTION
\ ' � Le=12.0'
' EXTEND TO BOTTOM
'ET
\F, 1 / W=9.0
;DEOF ICELE / STONE O=CLASS A RIP RAP
OUT (TYP)
"ARREL OUTLET PROTECTION
\
La=12.0' W=6.0' \_
\ \_
I STONE O=CLASS B RIP RAP
D-LS'
1 470
RAFTING AND DESIGN
If/'
SERVICES, INC.
346 WOOLARD ROAD
Sanford, North Carolina 27330
[phone] phone
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PATTERSON EXPLORATION
SERVICES
P.O. BOX 3008
SANFORD, NC 273313008
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REVISIONS
AGENCY REVIEW ONLY
NOT
FOR CONSTRUCTION
Scale:
Drawn by:
DRAFTING AND DESIGN
1"=200'
SERVICES, INC.
Sheet.
Designed by:
DRAFTING AND DESIGN
SERVICES, INC.
Reviewed by:
C4
�S p
Of 1 v
PATTERSON EXPLORATION
SERVICES
Project Number:
Date:
DDS JOB M 2016-18
PXS JOB M
FEB 2016
.10