C301C EC Plan_20200409

I — (SEE INSET AT , MATCHLINE �` LaBeRa
f t + 110 LEFT) \ \ SKIMMER BASIN #21 Powered by partnership.
CLASS I RIP RAP 4.5'W x ' / \ BOTTOM ELEVATION: 612.50
11 / 9 L x IDS W 27'THICK
LEGEND CLASS I RIP RAP WATER LEVEL ELEVATION: 615.50
FES-i6 0 / / I / \ 2'W x 6'L x 2'W TOP DAM ELEVATION: 617.00 615 St. George Square
INS=6os.oD� / / -- TOP OF DAM WIDTH: 5'
\ ( FUTURE 21" THICK WEIR LENGTH: 7' Suite 300
EXISTING PROPERTY LINE — — TEMPORARY Pe, f EMERGENCY
\ \ CHECKDAM rS •4ir /J / Winston-Salem,
\� /� ! \ MIN SURFACE AREA: 2,139 S FT
PROPOSED PROPERTY LINE — — CIASSIRIPRAP4.5'WX / R�Q� / � ACCE$S ROAD \ MIN VOLUME: 5,139 FT NC 27103
_ \ 14'Lx15.6IN27THICK do A`sx�sy / \ \ ' 336-842-4065
r 1 61 TEMP.SEDIMENT 'P� SKIMMER
DIA: 1.00
EXISTING BUILDING L_� \ \ \ \ / FENCE / S FEs-1s / / / / / �622� \ 1 O \ \ ' SKIMMER SIZE: 2.00" C#0430
PROPOSED BUILDING U1, \ STONE OUT FES 14 FV=609.84
\ \ \\\ / 1 \ j / / / / / / / \ \ \ \ \ \ \ labellapc.com
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MINE PERIMETER \ \ \LIMITS OF INV.606.40 6.00LF .0
\ /
PROPOSED SECURITY FENCE —x—x—x—x— DISTURBANCE A J Y
` ` // LIMITS ( ( / 624� LIMITS OF STONE OUTLET (TYP.) �, `LITIIULIT��� T
TEMPORARY DIVERSION DITCH T��— \ / DISTURBANCE I DISTURBANCE SEE DETAIL 7/C502 \ ,\�\ N CAR i��� •
TEMPORARY SILT FENCE II CLASSI RIP RAP 4.5'Wz \ \ \ 0...-*jeSS�, �.
III \ 32.00LF 15"RCP @ 2.50% / ( j / // \ ` C O
9Lx10.5'W27•THICK \ O
\ FES-13 / \ �6p \ T WIDE
PROPOSED ENERGY DISSIPATOR ® \ Nv. 2D / J / /
6
TEMPORARY CHECK DAM • / i / 0 SPILLWAY
}} 20'WIDE FUTURE EMERGENCY CLASS I RIP RAP 4.5'W x / ._` 1 I \
MINE HAUL ROAD ` /� ACCESS ROAD.CONTRACT OR 14'Lx 15.5'W 27'THICK ( \ 2 052
/ TOINSTALL6'ABCSTONE j \ ' \ \ \ FLOATING SKIMMER
DISTURBED AREA THESAME �� /--628V \ \ SKIMMER \ BASIN �j21/ ..........
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/ AND KEEP ALL CONTOURS N f �J,��/
T / i I V DEVICE S.D.O. #21 i��A4'•.• GINS ,.
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STONE OUTLET o ✓'� �_ \ ' I ' ' ` ' \ _ X—x x �V
TEMP. SLOPE DRAIN
STONE INLET PROTECTION '
\ \ \ POROUS BAFFLES
a
S.D.O. STONE DRAINAGE OUTLET \ /� f \ V 00 �s (TYP)
>, �n m LIMITS OF \ \
MATCHLINE "A—A" /V `° LIMITS OF
--630 A DISTURBANCE \ DITCH (Typ•)TEMPORARY DNERSION
DISTURBANCE
0 SEE DETAIL VC502
"A—A" V A \ \ \ V v
' / F ff t SCALE: 1"=60' V V A \ \ 20' WIDE EMERGENCY ACCESS ROAD �—g28 \ 62
\ { \ CONTRACTOR TO INSTALL 8 INCHES
ABC STONE AND KEEP ALL 4
I a l \ CONTOURS THE SAME \
POR� �/, v v
�U 2 / ©2019 LaB611aAssociates
0 ALAMANCE
v \
636 \v a�F�RDISTURBED \ AGGREGATES, LLC
TEMP. SEDIMENT
FENCE (TYP) , LIMITS OF
DISTURBANCE Mr. Chad Threatt, VP
SEE DETAIL 2/C501,
IMMER BASIN #1<t j i V \
y, . . v 6 QQ V A
A I - STONE OUTLET (TYP.)
SEE DETAIL 7/C502
LLJ
o
r
> . 7 00 \
ONE OUTLET (TYP.)
SEE DETAIL 7/C502
�84 Snow Camp Mine
CONTRACTOR TO PROVIDE CURLEX I, $� (n s \ \ \ \ \ \ \ \ '� \ \ \ \ \ \ \ \ \ \
EXCELSIOR MATTING ACROSS THE \ \ \ \ \ \ y \ \ 1 8 00
ENTIRE LENGTH & WIDTH OF ALL I
SLOPES 3H:1V AND STEEPER < LLI
LIMITS OF \ \ V A\ \ \ / / 1 TEMP. SEDIMENT
SDENT
o _✓ = I— DISTURBANCE FENCE (TYP.)
SEE DETAIL 2/C501
\ CLASS I RIP RAP
6 // 9 f . .;x / \ \ \ 2'W x 6'L x 2'W \ \ � 9 00
\ \ V A �" THICKCONTRACTOR TO PROVIDE CUR I ,. �
J TAILING POND #2 f / \ \ 17' WIDE \\ \ \ `�_' EXCELSIOR MATTING ACROSS E ,l' / ' { ` \ \ \ , 1 3/31/20 NCDEMLR COMMENTS
WE 584 - l -� \ SPILLWAY ENTIRE LENGT'FLOATING ALL I
\ \ SLOPES 3H:1\SKIMMER =PER \ \ N0: DATE: DESCRIPTION:
BOTTOM 569' ' L yQA \ \
3 j c / I \ \ \ \ \ DEVICE 50' UNDISTURBED \ \ REVISIONS
\ BUFFER A PROJECT NUMBER:
SKIMMER BASIN #21 2190335
- BOTTOM ELEVATION 611.00
/ ( L1M1 S --�- SKIMMER BASIN #23
1 o MINING BOTTOM ELEVATION: 602.00 \ \ \ WATER LEVEL ELEVATION: 614.00 1p 0 \ DRAWN BY:
TOP DAM ELEVATION: 615.50
WATER LEVEL ELEVATION: 605.00 \ TOP OF DAM WIDTH: 5' \ KCG/ATC/BWS
TOP DAM ELEVATION: 606.50 \ WEIR LENGTH: 9' REVIEWED BY:
r I TOP OF DAM WIDTH: 5' A \ MIN SURFACE AREA: 3,000 SQFT 6�0 PAS
-f _ ` WEIR LENGTH: 17'
MIN SURFACE AREA: 2,345 SQFT \ \ \ svp MIN VOLUME: 7,074 CUFT \ \ \ �� / ISSUED FOR:
0 1 i ORIFICE DIA: 1.25"
MIN VOLUME: 4so5 cu CONSTRUCTION
TEMPORARY DIVERSION FLOATING \ ORIFICE DIA: 1.25" \I \ \ SKIMMER SIZE: 2.00" /
DITCH (TYP.) SKIMMER SKIMMER SIZE: 2.00" V A
„_I 1 SEE DETAIL 3�502 ICE �9'WIDE \ \ \ V / DATE: 4/9/20
\ S.D.O. 23/#23 \ .V A SPILLWAY 11 0 \ so\ o m / 9D 1zo DRAWING NAME:
3 Y \ SKIMMER BASIN #23/
POROUS BAFFLES \
T \ f — (TYP) \ \ \ \ i STONE OUTLET (TYP.)
C ' s } Q\V SEE DETAIL 7/C502 \ L•
FLOATING
a N � o \ V A SKIMMER BASIN #20/ SKIMMER CLASS I RIPRAP IL_601
E Y \ \ S.D.O. #20 4.5'Wx10.25'Lx14.75'W 27"
U l - �1 I P I j DEVICE
a I TEMPORARY DIVERSION 1 ' \ \ \\ \ \ \ > ( THICK WITH NCDOT TYPE
DITCH (TYP.) \ \ \` \ POROUS BAFFLES 2 FABRIC UNDERNEATH
.. SEE DETAL 3/C502 _ (TYP) \ SEDIMENTATION &
P
I EROSION CONTROL
. . _
o a 0, V CLASS 1 RI RAP 00
_ 2'W x 6'L x 2'W
> { OF
m ER BASIN #9/ 21 _ 18 RCP
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� � �' � ' THICK 129.73 LF PLAN
Y Q M ,' TEMP. SEDIMENT
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H E ETA SEE DETAIL 2 C501 �'�°3 Y — O D DRAWING NUMBER:
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£ ': .. ..
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�,. .-� ' . ,, . .., . .....STONE INLET..
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., $ .. l —
,A .. _ INV. 617.75
, PROTECTION _
....77 ,
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LIMITS OF . . .: ..<.
tDISTURBANCE � I >,. �.. .-
A L MINE HAU i"
� £ C301