NCG021004_Scanned Site Map_20221006

�\ TORMWATEROUTFALL#5 MINING ACTIVITY
-- A E a4.389211 CONSTRUCTION SEQUENCE
'•�l- - :•8.018]53
O SITE ENTRANCE (PREVIOUSLY INSTALLED)
OCR ENTRANCE
CLASSA APJRAR WIDTH 1. PRIOR TO COMMENCEMENT OF CONSTRUCTION ACTIVITIES CONTACT NCDEO LAND QUALITY SECTION [phone].
\II
` 2. INSTALL CONSTRUCTION ENTRANCE ON NC-421.
ATCHCH NFL 3 UPRADE ACCESS ROADS PER PLAN
4. INSTALL SILT FENCE ALONG ACCESS ROAD PER PLAN.
\ / \ I`� 1 \\ -:: •,/ -,/ \ `� 25'WDE VEGETATIVE BERM (TYP) 5. MAINTAIN SLOTSISESTNOSILT FENCE OUTLETS DOWN STREAM UNTIL TEMPORARYIPERMANENT LINING. AND GOOD GROUND COVER
M
FENCE
• \ / � i \,` _ � ON FILL SLOPES IS ESTABLIBHED.
INTERIOR PROPERTY PIT BOUNDARY
\ H 30 FT PHASE 1
SISILT FENCE BELOWALL DISTURBED AREAS NTH SILT FENCE OUTLETS PER PLAIN
DESO 2. INSTALL SEDIMENLY CLEAR
NMININGECESSARY AREA FORCLEARINGBASINS. MAINTAIN
BERM INSTALLATION. AND SILT ILIZE FENCE OUTLETS
SEED ALL SLOPES
XCAV �TJIO� \ � \ SIDE SLOPES=4:1 IMMEDIATELV.ONLV CLEAR AS NECESSARY TO INSTALL BASINS. MAINTgIN SILT FENCE AND SILT FENCE OUTLETS DOWN STREAM UNTIL
PH C 5( \ - \ \� OCK ENTRANCE GOOD GROUND COVER IS ESTABLISHED.
CLASS A RIP RAP INSTALL TEMPORARY DIVERSIONS. STABILIZE ANDSEED
l '
ALL SLOPES IMMEDIATELY. ONLY CLEAR AS NECESSARY TO INSTALL
I \ / , / \ �✓ �- `. \ \ / 3.
ILT FENCE P)I/ / , � ,-.,- ` \ r, MATCH
DIVERSIONS. MAINTAIN SILT FENCE AND SILT FENCE OUTLETS GOWN STREAM UNTIL TEMPORARY/PERMANENT LINING, AND G000
I - \ - _ MATCH CHANNEL WIDTH GROUND COVER ON FILL SLOPE$ IS ESTABLISHED.
\ / FFECTEDAREA( P)IF ,�� \ •••'• -' \� h,\ _ 5. INSTALL PERMANENT BERMS AROUND PIT.
TD 01 6. ONCE BERMS ARE COMPLETE AROUND EXCAVATION AREA AND ARE STABILIZED AND SEEDED. MAINTAIN SILT FENCE UNTIL THIS
TORM77497 OUTFACE #4
ACHIEVED. REMOVE TEMPORARY DIVERSIONS AND TEMPORARY SKIMMER BASINS ONCE POSITIVE DRAINAGE IS ACHIEVED TO THE :'IT
N: 39.38T149]
E,-]8.01349] MAINTAIN ALL DOWNSTREAM DIVERSIONS AND SILT FENCE UNTIL GOOD GROUND COVER IS ESTABLISHED.
FFECTED AREA (TYP) ]. ONCE GOOD GROUND COVER IS ESTABLISHED AND NO RUTTING OF SLOPES IS OCCURRING REMOVE ALL EROSION CONTROL MEASURES
Y ��?
�. • /- 1 I i /' 1 - - - - - SS �\ 88.SAC+/- WHILE MAINTAINING SILT FENCE ON DOWNSTREAM SIDE.
UEL $$TORAUE
WISECONDAI2Y /"� \ 8. MINE EXCAVATION WILL START IN SEDIMENT BASINS AND ALL DRAINAGE WITHIN PIT LIMITS SHALL BE DIRECTED IN TO THE PIT.3
ONSTRU TI,yptN�,EI,JT NC '_ - - CONTAINMENj \ ` 9. PIT AREAS WILL BE BERMED AND DRAINED TEMPORARILY FOR EXCAVATION,
R EXA(JAPG DE j \ �^ ` - - \� �_ \ \ `I- 10. .� MAINTAIN SILT FENCE AFTER MAJOR RAIN EVENTS
11. STABILIZE AND SEED ALL DENUDED AREAS IN WHICH WORK WILL NOT RECOMMENCE WITHIN 7 WORKING DAYS OR 14 CALENDAR DAYS.
12. CALL NCDEO LAND QUALITY SECTION FOR INSPECTION (910) ]96-]215.
TORMWATEROUTFALI-n PHASE2
INSET' -'-SITE ENTRANCE I ( � I - CANT ITE I A� �- N:M.386150 1. BEGIN MINING ACTIVITIES.
\ \ E:-78.010904 2, AS EXCAVATION AREA IS EXPANDED POSITIVE DRAINAGETOSEMAINTAINEDTO EXCAVATION PIT
BCALE,=2D0' V� v 1..3 AC ` / 4Xc�svAriod
f PHASE- / TD 0 \ OCK ENTRANCE 3. TEMPORARY SEED STOCKPILE AREAS THAT WILL BE DENUDED FOR 30 DAYS M MORE.
1
\ _ �� CLASS A RIP RAP 4. MAINTAINNIOEIIL EROAND QUALITY
CONTROL SECT ON FOR I WEEKLY AND AFT 96MAJOR STORM EVENTS.
-'\ I ! ,\ � \ ' � �__- � � � ' \ � _` CALL NCDEO LAND DUALITY SECTION FOR INSPECTION (910) ]96-7215.
\ MATCH CHANNEL WIDTH
\ SILT FENCE (TYP �\ ''\, 30' UNDIST�D BUFFER (TYP) --- \�\\ S IL
ALONG WETLANDS\
. ` \ \• - - .- _ -- - %/ ERUNI NARY WE AUG.
20
DISTURBED AREAS
/1EU
ERLMGDATEDAUG2021 TAILINGS/SEDIMENT PONDS 2.5AC
(_
- I \ _ TOO' 0 ILT FEN (TYP) 3 0 AC
E G ATIVE BERM(TYP INITIAL PIT \07 \ ((IINSIIDEMPNEEXCAVATION)
FENCE TYP
25 NICE VE €T
IN
PRiJPENTYPIT BOUNDARY \ !% \\� \ -\ L� iOFT. \ 74.3 AC \ \\ _ PROCESSING AREA/HAUL ROADS 5.0 AC
f \\ \ - - - _ Bw-2S 0 FT %Ll _ _
.� 2�WIDESITEACCESSROd (Tm . --1yp0OPT - \ // \ "
'\ "SEE HEET'!y -\, © \ \ ILT FENCE OUTLET (TYP) MINE EXCAVATION 106.2 AC*
\ S`- ✓ . . . . SIDI�SLQPE$ 4.1. ' \ \
00, r%CAVAT
N
/ PIIasC4 AC
•�UTUREPIT EXPANSI - _ COCK ENTRANCE N 8.0
LASS A RIP RAP ,
26 WIDE VEGETATIVE BER• (BERMS, DIVERSIONS, AEACT)O
INTERIOR GROPERTY PIT BOUNy `- � \' \ �\ MATCH CHANNEL WIDTH
FIR Fr - '' ST\OR�IWATE\ OUTFALq _ TOTAL AFFECTED AREA 121.1 All
BTw-o9 , I,E-8_00Bio " TOTAL MINE EXCAV77ON AREA=36.O AC
, , SIDE SLOPES - _ \ \\ \ \� \ �\ •AREAS BONDED AS HIGHER BOND AMOUNT
PRELIMINARYWETLANO , \ .., I
PEl�LM6�DATED AUG. 2021 \ XUTUREPITEXPA14 0 ••
X. CULVERT \ \ SILTFENCE (TYP). �, EXCAVATION i S
A - \ • \� / 1 ! f ! vA INTERNAL DRAINAGE = 110.5 AC
PHASE 2 -
v �\` � �._ .f i SP` ���� Av t EXTERNAL DRAINAGE=11.2AC
II
STORMWATE20LLT
N 34,382400 -
- _
II \ \\
1 /' .% - .- - • - \, SICK ENTRANCE
CLASS A RIP RAP _
%.CULVERT FUTURE PIT - MATCH CHANNEL WIDTH
j
%
-
,, 1
ILT FENCE(TYP) '`'\- _ _ EXPANSION \. �� '
OL LEG
_ � I E
31.9 AC \ •••�� TDB• R 15 OF BERM
I EROSION CONTROL ND
EXCAVATION �\ SKIMMER BASIN SKIMMER
\ `\ \ i \�' • �. \ . CULv(ERT i - f J \ _ PHASE 3 \\ TO \ S BAFFLES
q7� Ji
\ // SPILL AV
\� \ �' _ _ / ( \�\ >x _ 3 ,\ .'•� TD EXCAVATION ROCK CHECK DAMS -
PHA SN E 1
SILT FENCE - SF
UTLET PROTECTIO#1
STONE o=CLASS B TEMPORARY DIVERSION DITCH
-A/-
80 LF 30" HGPE ®0.5%
\ \PREDMINAR� ryANoI \ \ 1 OUTLET PROTECTION
J-HOOK W/SILT FENCE OUTLET
Cm
_ - _ . , . SILT FENCE OUTLET El
. . - - - - - - _ _ _ _ _ . _ . I
LEGEND
O'WIDE VEGETATIVVEE BERM (TYP)
C�DEXTERIOR BOUNDARN \_ \
H�Oo -I PERMIT BOUNDARY
UTURE PIT \ BW=500 FT
50'. WIDE VEGETATIVE BERM (TYP)TVJ=E2S.0LFT
-4:1 ENTEQOPES
1 _
FO
"irzu BAT WETLAND
SIDESLOPES 41
$LLT EENC 0 ETITY `\
- �_ _ BUFFER
/• I \ 1 :tt .- - - r- - - - _ _ - - O'UNDISNRBED BUFFER (TYP)
EXTERIOR BOUNDARY ,
. _ . _ . . - . . _ _ - - % 11 AFFECTED AREA
_ ERLIMG DATEJETLApp$
_ _ _ _ - - _ _ _ _ _ - _ _ _PEki1.1c DATEDguG 2oz1
,' RbPERTYIPERMIT BOUNDARY(TYP) \, CREEK
\ \
t. _ _ 0 _ \ \ BERM
- -
PROPOSED DIVERSION TABLE
_
CHANNEL ID CHANNEL SLOPE SIDE SLOPES CHANNEL DEPTH TEMPORARY LINING PERMANENT LINING LINING DEPTH POND �'\
\_ TD#1 OS% 3:1 2.0 FT NAG BC]SBN BERMUDAGRASS
\i \ TD#2 os% 3:1 z.o Fr NAG BC]SBN BERMUDAGRASS _ pROPOSED BASIN TABLE
TD#3 0.5 % 3:1 2.0 FT NAG BC1508N BERMUDAGRASS -
TD114 0.5% Bt 2.0 FT NAG BC]SBN BERMUDAGRASS Ti
TD#5 0.5% Bt 201 NAG BC]5BN BERMIIpgGRASS BASING TOP BOTTOM POOL TOP BOTTOM VOLUME VOLUME WEIR WEIR WIER RISER BARREL RISER SKIMMER SKIMMER BAFFLES 0
/ TDY6 0.5 % 3:1 2.0 FT NAG BC15OBN BERMIIpAQRASS DIM DIM DEPTH EL EL. REQUIRED PROPd6EFD L NA TN DIVA H LIT SNgE SIZE BASE ORIFICE SIZE
NA NA
ACC SS ROAD (TYP) TO#] 0.5 % 3:1 2.0 FT NAG BC150BN BERM II _ SB#1 93x186 ]2x141 5 22.0 16.0 /BAOO SF 83.78
SEES DAGRASS SBIF1 193x226 92.184 5 18.0 9A 29,880 SF 39,5696E NA NA NA NA NA NA NA NA NA
/ TDpB BS% 3:1 2.0 FT NAG BC150BN BERMUDAGRASS ='
6E�INSET'B'� \ TD#9 0.5% Bt ZO FT NAG BC150BN BERMUDAGHASS = SB#3 118x232 85z190 5 16.0 9A 31,500 SF 106,6296E NA NA NA NA NA NA NA IN NA
Ij TD#10 0.5% 3:1 2.0 FT NAG BC]5BN BFRM4 DAGRASS SB#4 126.20 IN.208 5 16.0 9.0 3]p40 SF 124,WiISF NA NA NA NA NA NA NA NA NA
pR CONTINUATION TD#11 0.3% 3:1 2.0 FT NAG BC]5BN BERM SB#5 98x192 75x150 5 18A 9.0 21.060 SF 68,623 SF NA NA NA NA NA NA NA NA NA
Qa 4DAGRASS - 200 0 100 200 400
F /� - \ , TD#12 0.3 % 31 2.0 FT NAG BC756N BERMUbAGRASS
` I SB-SEDIMENT BASIN
INSTALL CHECK DAMS IN CHANNELS STABILIZE AND SEED ALL SLOPES IMMEDIATELY
SEEDETAIL CROSS-SECTION FOR ELEVATIONS HORIZONTAL SCALE: 1' = 200'
RAFTING AND DESIGN
L� SERVICESIN , C.
6728 CARBONTON ROAD
Sanford, North Carolina 27330
[phone] phone
[e-mail]
�C6o2iool�
Q
Z
J
00
W Qa
W F
Pi N W
3a W Lu}
D
� 0M IL)
W m Q
Z
W
a
W
Z_
- REVISIONS
PRELIMINARY
NOT FOR CONSTRUCTION
Scale:
1-200'
Drawn by:
MTB
Sheet.
Designed by:
MTB
C3 of 17
Reviewed by:
MTB
Project Number:
Dale:
2022-03
SEPT 2022