NCG020907_Site Map_20210716

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CONSTRUCTION SEQUENCE MINING ACTIVITY
PHASE 1
1. PRIOR TO COMMENCEMENT OF CONSTRUCTION ACTIVITIES CONTACT NCDEQ LAND QUALITY SECTION (919) 7914200.
2. INSTALL CONSTRUCTION ENTRANCE ON IKE BROOKS ROAD PER PLAN.
3. INSTALL SILT FENCE AROUND SITE PER PLAN WITH SILT FENCE OUTLETS.
4. INSTALL SILT FENCE PER PLAN BELOW ALL PERMANENT/TEMPORARY DIVERSION$ AND BASIN/TRAPS W/ SILT FENCE OUTLETS IN LOW
AREAS PER PLAN.
5. MAINTAIN SILT FENCE AFTER MAJOR RAIN EVENTS
6. INSTALL SKIMMER BASIN #1-7. 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 COVER IS ESTABLISHED
7. INSTALL TEMPORARY DIVERSIONS #1-14. 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
8. BEGIN CLEARING NECESSARY AREAS TO INSTALL PLANT SITE AND BEGIN REMOVAL OF OVERBURDEN FROM PIT FOR FILL MATERIAL.
ONCE FINISH GRADE IS MET ON THE PLANT SITE REMOVE TD # 1-4 AND SKIMMER BASIN #1.MAINTAIN SILT FENCE AND SILT FENCE
OUTLETS DOWN STREAM UNTIL TEMPORARY/PERMANENT LINING, AND GOOD GROUND COVER ON FILL SLOPES IS ESTABLISHED
9. FILL PLANT SITE AROUND TEMPORARY SKIMMER BASIN #1 AND MAINTAIN POSITIVE DRAINAGE UNTIL GRADES ARE MEET. REMOVE
TEMPORARY SKIMMER BASIN #1 AND FILL TO PROPOSED GRADE. AT THE POINT OF THE BASIN REMOVAL POSITIVE DRAINAGE SHOULD BE
TO SKIMMER BASIN #2. MAINTAIN SILT FENCE BELOW FILL AREA AND STABILIZE AND SEED SLOPES.
10. MAINTAIN ALL EROSION CONTROL MEASURES WEEKLY AND AFTER ANY STORM EVENTS.
11. ONCE PLANT SITE, SITE ACCESS 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.
12. PROVIDE TREE PLANTINGS ON BERM TO PROVIDE ADDITIONAL SCREENING AS NECESSARY.
13. ONCE BERMS ARE COMPLETE AROUND 10-YR PIT STABILIZE AND SEED. MAINTAIN SILT FENCE UNTIL THIS ACHIEVED. ONCE THE PIT
ELEVATION IS BELOW THE SKIMMER BASIN OUTFALL REMOVE TEMPORARY DIVERSIONS #5-8 AND TEMPORARY SKIMMER BASIN 93&4.
MAINTAIN ALL DOWNSTREAM DIVERSIONS AND SILT FENCE UNTIL GOOD GROUND COVER IS ESTABLISHED.
14. 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.
15. 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.
16. DEWATER ALL SKIMMER BASINS AND SEDIMENT TRAPS WITH SILT BAG PER DETAIL.
17. STABILIZE AND SEED ALL DENUDED AREAS IN WHICH WORK WILL NOT RECOMMENCE WITHIN 7 WORKING DAYS OR 14 CALENDAR DAYS.
18. CALL NCDEQ LAND QUALITY SECTION FOR INSPECTION [phone].
PHASE 2
1. BEGIN MINING ACTIVITIES.
2. TEMPORARY SEED OVERBURDEN AREAS THAT WILL BE DENUDED FOR 30 DAYS OR MORE.
3. MAINTAIN ALL EROSION CONTROL DEVICES WEEKLY AND AFTER MAJOR STORM EVENTS,
4. CALL NCDEQ LAND QUALITY SECTION FOR INSPECTION (919) 7914200.
1. ALL DENUDED AREAS LEFT INACTIVE BETWEEN PERIODS OF GRADING I
ACTIVITY SHALL BE TEMPORARILY SEEDED WITH IN 15 WORKINGS DAYS
OR 30 CALENDAR DAYS, SHICHEVER IS SHORTER. SEE SEEDING
SCHEDULE IN DETAILS.
2. OVERBURDEN PILE TO BE CONSTRUCTED AND STABILIZED FROM
BOTTOM PER ABOVE DETAIL AS FILLED, ONCE FINAL LIFT I® REACHED
THE LOWER SLOPES AND BENCHES SHALL BE COMPLETED (MEETING
THE RECLAMATION PLAN).
3. FOR FINAL STABILIZATION OF FILL SLOPES, GRADE TO 3:1 BLOPE,
COVER WITH TOPSOIL, SEED AND MULCH.
WASTE PILE RECLAMATION (TYP)
EROSION CONTROL LEGEND
TOP OF BERM
SEDIMENT BASIN
WIER BAFFLES
ROCK CHECK DAMS
SILT FENCE
TEMPORARY DIVERSION DITCH
OUTLET PROTECTION
J-HOOK W/ SILT FENCE OUTLET
SILT FENCE OUTLET
DISTURBED AREAS
TAILINGS/SEDIMENT PONDS 2.6 AC
STOCKPILES 3.0 AC
OVERBURDEN STOCKPILE 21.8 AC
PROCESSING AREA/HAUL ROADS 2.5 AC
MINE EXCAVATION 29.0 AC
OTHER MISC EXCAVATION 7.6 AC
(BERMS, DIVERSIONS, ETC.)
TOTAL AFFECTED AREA 66.5 AC
CJ
SF
mr_
Lo:�l
LEGEND
ACTIVE PERMIT BOUNDARY
EXISTING CONTOUR
EXISTING BUFFER
AFFECTED AREA
CREEK
BERM
POND
NTS
v
I ovlr vl v-n i '� VR/1LlC vrr no rnn I + .
SKIMMER BASIN #1 + + OF PIT OVERBURDEN + w\ w \,y
TOP DIM=43x86 +.+
O + + \ \ 30 FT WIDE HAUL ROAD (TYP) " ++ w d• '.
i
BOTTOM DIM= 25 x 68 ` ` \ \
POOL DEPTH=3.0' ._.. TD#2.\ \' ++ \ \... v +t w w) 4"` \ w !
\ \ ` + /' fit$ + w\ \ W\� w \
TOP EL=483.0 \ ,,
BOTTOM EL= 478.0
WEIR EL= 481.0 \\ + ` ` w\\w " \
+�.•„7FIN SC VOL PROPOSED= 8097 CF +C.
#�q \
VOL REQUIRED= 7020 CF +'ILA5g40i\\
Y., :...... ` ..., WEIR L= 12.0' +'. LONG: W79"22';
\`.
WEIR D= 2 0
.. �.� \ +
\ WEIR LINING=CLASS A RIP RAP v � + \ � �-� ' TD#8 `�� '• v E. 189,Q4��1
\ WEIR STONE D=1 0 ` \ +.' \ - >..._. t MAX EOW= 1RC�$ TD#12 \` ' w k
/ \ EMERGENCY SPILLWAY TO BE CONSTRUCTED IN CUT ` ++ ` a -
\ SKIMMER SIZE 4 +'` V CULVERT #1 +
` t' v ! o + CULVERT #2
` \ SKIMMER ORFICE=1 4 + o �„ \ \ 60 LF 36" RCP 5.8 /o \ w ;
BAFFLES 3 TD#5 RCP
DIVERSION INLET PROTECTION „`;`.` -+ P�'
+ 0 WIDE D (La=12.0' :\v VA
A V ` STONE O=CLASS A RIP RAP \ �\ + - O��DEN
1
\\ EXTEND TO BOTTOM SILT FENCE (TYP) \ ++ 0t ++ C�- TD#11
Y
_._ �� 8
`' ",'•', 't,• `' v A�`,.;`A A v +, .1/ + OUTLET #2
4 STRAND BARBED WIRE FENCE (TYP) +, OUTLET PROTECTION #1 ++ _
La-26.0 FT La 66 0 FT
i e \ WARNING SIGNS ALONG FENCE - + W= 6.0 FT I RIP
': 1'•,,'.`':• \ `\ `\ \\ t'+ _ ++ =CLASS RAP'
W 10 0 FT STONE 0
TEMPORARY � \ �w + \ STONE 0= CLASS I RIP RAP + STONE D= 2.0 FT E'#°
TD#5 %`
POINT SQbRCE DISCHARGE
w / STONE D= 2.0 FT +
SKIMMER BASIN #3 � \ �` �� ++ - -LAT N35':4Q 20
TOP DIM= 59 x 118 �� POINT SOURCE + TD#9 LONG; W79°"22' 07"
\ \ \ DI CH 1RGE #7
BOTTOM DIM= 41 x 100 '- V A \ A, I ��AT: N36 40' 24` S ++ N 69583670
,+ + f 1890563.58
POOL DEPTH=3.0' \ LONG: W79° 22' 2 _ +
J
+Q + MAX FLOW .. ^Fr,
-- TOP EL= 463.0 �, N:aOE}246 65 t �� " TD#10
BOTTOM EL= 458.0 ` \+ E: 9889340.49 + SILT FENCE UTLET (TYP) '
�-_--
WEIR EL= 461.0 ��\ ` �� A A �` w y + MAXLOW- 22FS+;+ �l
VOL PROPOSED= 16593 CF �� VA w w /t POINT SOURCE L�I$CHRRGE #& ++
VOL REQUIRED= 13500 CF '\ A` `- ,SILT FENCE O LAT: N35 4020" a +
WEIR L= 15.0' A\ OUTLET (TYP) A + LONG .W79 22' 09`
WEIR D= 2.0' -. \V , .. \ \ \ TD#6
N 699808.28
WEIR LINING=CLASS A RIP RAP E:A1590345.02 "
WEIR STONE D=1.0' MAX FLOW 70CF9
CBACRGF WCV CPII I WAV Tfl RF CANSTRl1CTED
SILT FENCE
�PROTECTION
---------
BOTTOM DIM= 73�x 176 BARREL
OUTLET
BOTTOM EL= 422.0 '''1",, \ \•`
y
POOL��
DEPTH=5.0' :;
La=18.0'
WEIR E57422 0 `�.v
\
TOP EL= 431.5 _
W=9.0'
VOL PROPOSED= 15792 CF
/
BOTTOM EL= 423.0 ',
STONE O=CLASS B RIP RAP
VOL REQUIRED= 13140 CF `\ \
"'
PRINCIPAL SPILLWAY EL= 428.0 -
D=1.5'
WEIR L= 15 0 \ '
WEIR EL= 429.5
WEIRD-2.0'
BASIN TO BE LINED WITH CLASS A RIP RAP -
"' ' `
TEMPORARY
WEIR LINING=CLASS A RIP RAP
"+
VOL PROPOSED= 85165 CF " --
SKIMMER BASIN #5
WEIR STONE D=1 0
!"
VOL REQUIRED= 42840 CIF
,
TOP DIM= 63 x 126
EMERGENCY SPILLWAY TO BE CONSTRUCTED IN CUT
WEIR L= 12.0'
BOTTOM DIM= 45 x 108
SKIMMER SIZE= 4"
iM
WEIR D= 2,0' `
POOL DEPTH -''
SKIMMER FF E
WEIR LINING=CLASS A RIP RAP -
TOP EL= 425.0
25.0
S= 3
BAFFLES= 3
B
WEIR STONE D=1.0"
BOTTOM EL= 42
DIVERSION INLET PROTECTION
EMERGENCY SPILLWAY TO BE CONSTRUCTED IN CUT
WEIR EL= 423.00
-
La=12.0'
SKIMMER SIZE= 6"
IZE=:6"
VOL PROPOSED= 19197 CIF '
W=6.0'
SKIMMER OR
VOL REQUIRED= 15840 CIF
STONE O=CLASS A RIP RAP
RISER SIZE = 36" CMP
WEIR L= 15.0' '
D=1 0
/
BARREL SIZE= 30" CMP
WEIR D= 2.0
EXTEND TO BOTTOM
CONCRETE BASE= 6.2' x 6.2' x 1.0'
WEIR LINING=CLASS A RIP RAP
BAFFLES= 3
WEIR STONE D=1 0
j
DIVERSION INLET PROTECTION .
EMERGENCY SPILLWAY TO BE CONSTRUCTED IN CUT
La-12.0' . _.
SKIMMER SIZE= 4"
\ /
W=8.0' -
SKIMMER ORFICE=2.2"
STONE O=CLASS A RIP RAP'
BAFFLES=3
= -
D=1.0'
DIVERSION INLET PROTECTION
,
CHANNEL ID
CHANNEL SLOPE
SIDE SLOPES
PROPOSED DIVERSION TABLE
CHANNEL DEPTH TEMPORARY LINING
PERMANENT LINING
LINING DEPTH
TD#1
1.0 %
3:1
2.0 FT
STRAW W/ NETTING
BERMUDAGRASS
-
TD#2
2.0 %
3:1
2.0 FT
STRAW W/ NETTING
BERMUDAGRASS
-
TD#3
2.0 %
3:1
2.0 FT
STRAW W/ NETTING
BERMUDAGRASS
-
TD#4
2.7 %
3:1
2.0 FT
STRAW W/ NETTING
BERMUDAGRASS
-
TD#5
3.4 %
3:1
2.0 FT
CLASS A RIP RAP
CLASS A RIP RAP
1.0 FT
TD#6
3.1 %
3:1
2.0 FT
CLASS A RIP RAP
CLASS A RIP RAP
LOFT
TD#7
1.5 %
3:1
2.0 FT
STRAW W/ NETTING
BERMUDAGRASS
-
TD#8
5.8 %
3:1
2.5 FT
CLASS II RIP RAP
CLASS II RIP RAP
2.0 FT
TD#9
5.8 %
3:1
2.0 FT
CLASS B RIP RAP
CLASS B RIP RAP
1.5 FT
TD#10
1.0 %
3:1
2.0 FT
STRAW W/ NETTING
BERMUDAGRASS
-
TD#11
8.0 %
3:1
2.0 FT
CLASS B RIP RAP
CLASS B RIP RAP
1.5 FT
TD#12
2.5 %
3:1
2.O FT
STRAW W/ NETTING
BERMUDAGRASS
-
TD#13
9.0 %
3:1
2.0 FT
CLASS A RIP RAP
CLASS A RIP RAP
1.0 FT
TD#14
9.0 %
3:1
2.0 FT
CLASS A RIP RAP
CLASS A RIP RAP
1.0 FT
180 0 180 360 540
Scale: 1" = 180
RAFTING AND DESIGN O
SERVICES, INC.
346 WOOLARD ROAD
Sanford,
North Carolina 27330
[phone]
phone
[e-mail]
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PATTERSON EXPLORATION
SERVICES
P.O. BOX 3008
SANFORD, NC 27331-3008
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REVISED PER NCDEQ ADI 7 15-16
_..___._......
.. .._._. .... _..... _ ____.
I
._._ ......
AGENCY REVIEW ONLY
NOT FOR CONSTRUCTION
Scale:
Drawn by:
1"=180'
DRAFTING AND DESIGN
SERVICES, INC.
Sheet:
Designed by:
DRAFTING AND DESIGN
SERVICES, INC.
Reviewed by:
C4
Of 15
PATfERSON EXPLORATION
SERVICES
Project Number:
Date:
DDS JOB #: 2016-39
PXS JOB #: 050516
JUNE 2016