20241106_Mine Map_60-09

Mining Expansion Construction Sequence ,
FILTER OF 1 INCH DIAMETER o
�57 WASHED STONE �
1. Obtain DEMLR Mining Permit and all applicable permits for construction. / ' f
2. Clear only necessary areas to allow for the installation of the approved erosion control measures. \ I SINILT FENCE FABRIC TO OVERLAP
{ / HARDWARE CLOTH BY 12 INCHES
5r<ee 3. Once erosion control measures are installed seed and stabilize the installed erosion control measures.
4. Clearing and grubbing of work area can begin. Work areas cleared must be within the installed \ STEEL FENCE FENCE
\v \ \ WIRE FENCE HARDWARE CLOTH STEEL FENCE POST
T9' erosion control measure drainage areas. \ I 1 1 ON`WIRE CFENCE RIC ON WARE FENCE
NI'y 5. Maintenance of erosion control measures(ie.silt fence,diversion structures,check dams,sediment \ HARDWARE CLOTH-, PLAN VIEW
FILTER OF 1 INCH DIAMETER
Site basins,etc.)must be completed at regular intervals. Accumulated sediment in the installed basins \ I I r 57 WASHED STONE ;
when the storage volume is half-full. } I \ \
9 \ I FLOW DIRECTION I 16"
6. Any development occurring where the stormwater runoff can be directed to the existing pit does GRACE
STEEL FENCE PDST SET
Jafr��J not have to have sediment control basins installed. The existing pit is used for treatment of runoff. L - I \ „ARDWARE CLOTH MAXIMUM 2 FEET APART WARE FENCE
6.
� Q 7. Once the contributing areas have been stabilized the erosion control measures can be removed and
ore I
--------- ----
F 5 the areas graded and stabilized. I SIDE VIEW10
-
A/
FABRIC
OVERLAP OVERLA 12
P
C,y 3 I SILT FENCE12 INCHES INCHES
F \ I ♦ GRADE -----------
r,� a• I
4
19
PS NC I LP
BURY WIRE FENCE,HARDWARE
\\
AND SILT FENCE FABRIC 6 INCHES INTO
No Scale
1 I I ARE CLOTH,
'1 \ I FRONT VIEW THE TRENCH
Vicinity Map � I � \
Silt Fence Outlet Detail
CHR VIII-PCP v I \ \
i MHC Charlotte
i, Queens LLC
n
Co
\\\ 1 TYPICAL BERM CRO55 SECTION�
50'-0" 15'-0" 50'-0" 20'-0" 50'-0" 15'-0" 50'-0"
PHA5E 3
\ / 1 V 1 �` / \ I \SP'� •I
IN,
PHA5E 2 PHASE 1 +
Existing Aspha�� '� \
Lease Area- ��o \ \ \
/ j( Future Parts Supply \� �\ \ Notes: 250'-0"
t1 \
Storage Area �� \ 1)Slopes will be tracked during construction to aid in the establishment of vegetative cover-
/ 2)All exposed areas will be stabilized following construction
3)See Seeding Schedule for proper stabilization plantings.
4)All berms will be ewaluated for the need of slope drains during stabilization.(NCDEQ ESCDM 5td-6.32)
Mecklenburg / / 1
Stella _� County / \
Alexander J 590_
+ '/ l
Harman Et Al. I Mallard Creek \ ' (B"MAx.)
--_590 -- `- -= �� / / \ \ \ \ MIN 10 GA. MIN.12 112 GA.
BnffeY �� � � �j� \ \ A LINE WIRE INTERMEDIATE WIRES
�� _ _ _ Undisturbed Stream
MONO .�- - Buffer
W \\ Overhead
i` - -- / - -- \ �, v STEEL POST
Duke Energy _ _--i FEMA Powerlin / /� // 1\ \ \
_ / -\ J \I WIRE FABRIC
Yam- o G�-- _ , Floodlines
FILTER FABRIC
--- 5 ,
_ - - - >, o �\ \Existin \ \ o
-G70 -�t� r 1\ \\ J g /
/ - ---
/, Bed
� Existing D L
_ --'- Monitoring .\� +` f -' Berm s� 1 �,�G \\ \ \ \ o GRouN,
\ \ \ N I Well#1 - '� , \\
�\`l� 6 o- ' 'V1 e / w N 4"MIN.
/ �- 60� ANCHOR SKIRT MIN-OF 8„
\ / 1 / ✓ / ,J% � 1\ \�` � :� \( � \,h--/f ��1` J-��\` I � \ STANDERMSTD.620SILT NCE
StOCkplleS
,J/ Stockpiles i Clarification
\
Double Row Silt ( �'- %I //� / ` ,� ✓� ,•' (-�/, > �\ �l\ - \, �\ \\ �/ �/ Pond
t
Fence with Silt \ �N ti \\
' "\\� _ _ 1#5 Washed Sto NCDOT Sner
1 Fence Outlets Stockpiles A- ' l r_ \ + J \ ) h\ \ \ 5 c1aipP p
s` i 1
J fl� ,, ,/ .. I A` ll / � /. .r..�M r �v � � -V '��_ ���_\C, i ��� A,n / i v To Elevation of Stormwater-Weir Elevation Rip Rap 6 Min
� I l 1610 1 �`. �.,` \ " ���� �_ �r <, -='-Outfa1101 `o�
2
J - \ tT- -i- �--�� �-- Sediment
Proposed Shop Employee - 1 I 1 + `4 /` ` �- 'F'- = Clean Out Elevation 4. g Min.1.5'
Buildm &Containment Area� --�--I �I `✓ �, , � � ( � � \`°� b� �,� ,%` � J _._ 'b�L '` � �- ` thicka non
- -4-
of Existing Processing Plant / �, / \ \/" \\ \
Approximate Location, -� \ / �� _ \
Relocated Shop& c KeY+n Bottom
\ ` 6�0 / Gq / / P !/ 1 \ and St(ockplle Area// �y� 10'Min. '
Containment Loyer of Rip-Rap
\ -\ i \`l / S /,J \1 ` Car Ri Ra u
p \ +\C., \,,-_ r�'� �.�� Stock Iles / 1 C /� \ \ `� O� LY P- P P
\\ Stockpiles � p f ` I� \
I Former Developed sides of Spillway/ w Asphalt Plant Site \ ¢\ \ \ 10'Min. p 3'Min.
r \ �J f / \ I ' / `/ �• \ , L J-� / ' ` �� -e 2'Min.
/ :�� � / ` �✓1\° \` ._-/ � ,� ('� _ -�,`_x r Class 1&2 Rip-Rap
ExistingBuilding& �/ �_ `
�n\•
,. /`" `,. ----- r \ ` 6.i �.l .._� dam~ ` \ \ �J / \ l" .S #5 Washed `
ne
Scales o be Utilized / �- ` ` ` '�' \ 0 \ / 5 ~`� NCOOT 5ao
-XI
\ `\ �`\ StOCkplleS l I l J / \ / f� ,�" 7 \ \ \ \\ G w_ \ Spillway Detail
/ .. `� \ \ \ j / o> \ \.� 1 \ \ SEDIMENT BASIN WITH ROCK DAM
� NC5ECDM STD.6.63
I / 1
/ ( � � \ ham' � � ' l�l�l ` �� / !� \�\ \ / 1 L'\ \ // /� � ) \ tl \ \ /
( I �� 5EEDING SCHEDULE FOR ALL GRASSED AREAS
State of NC ` Undisturbed Stream' ' j Existing �" j }r1 \� Stockpiles
(
Buffer - � ,-- -,� � � I . I � _t � ��,���,�\ ` � �. I \
Existing 'I \ I /"/ �� SEEDBED PREPARATION NOTES:
Freshwater Pond } \ i\ 1\ j ,;'i
/ \\� r /i j � f \ I 1) Surface water measures are to be installed according to plan.
I O I \ I { / / b \ \ 2 A d shall be ripped and read with topsoil if necessary),3
Proposed Customer \- r\ �� r \ \ ( �f / J \ �, U ' ! \ ) Areas to be seeded h PP P P ( rY),
\ �� I 1 I I ✓ Truck Staging Area -/ y3 deep. Total seedbed prepared shall be 4"-6"deep.
19 1 t
\ GIO J \\ / �^ 1 ', \ � „-_, j � i ,� �//' � ) ti0' � c� I 3) Loose rocks roots,and other obstructions shall be removed from the surface
\ / \_ ` \ / / \, a\ / ✓ f ` I \ so as not to interfere with the establishment and maintenance of vegetation.
�_ I \j b /,� 460 `T� 3� ! j !I` I \ Surface for final seedbed preparation,at final grades shown,shall be reasonably
r �/ / \ - / smooth and uniform.
_tT50 EX1Sting ) / l h S> Z( � J \ 4) If no soil test Is taken, provide fertilizer and lime according to seeding
/ {(� �4� °� -Existing
('settling Cell schedule.' / J --% c� / / / / I /t' 0 - ( n I , g \ \ schedule. In addition provide 15 Ib./1000 sq.ft.of super phosphate.
�, �l / `• �/ I I 4. 1 ' Berm \
o 58OK ,/ l f�� o \ 5) If soil test is taken,provide fertilizer and lime according to the soil test
_
j� �" �► J J 1 i l )\
'�G� / 1 \\ j report. Soil testing is recommended.
( \` /, \ ��� G / - � / / ' \ 6) Lime and fertilizer shall be applied uniformly and mixed with the soil during
Q \ seedbed preparation.
\ r
d'> \ \�' ti iU' 7) WATER all seeded areas and keep moist until new grass is established.
- Existing /
Settling Ce
a�
I \ p \ l ( / I / / o Temporary SeedingSchedule
Existing Settling
/ 630� ° Cell to be Removed �,�' ) \ � � PLANTING DATE SEED MIX (lb/ac)
/ Piedmont Rye Grain Lespedeza German Millet
\ \ \ \ \ Future Pit Y P
Q�l \ \ \ ' \ \ Development/ l'' 4 ! z / ` C o \ \ May nY
l �t Jan.1-M 1 120 50
�- 640� Shop,Employee Building & ) ` �` ` sl0-.®� Existing Pit ° J �� \ Aug.15-bec130 120 40
�� \ \ \ \ lr \ Containment to be relocated ))l �1 \
-Development
Costal Plain Rye Grain Lespedeza German Millet
Jan.1-April 15 120 50
v J t `\ \ Existing \ \ April 15-Aug.15 40
660\ Berm \\ 9
1 \ Au 15-Dec.30 120
/ 6S6 \ N \ ( ( 6�� \ �J � Mountains Rye Grain Lespedeza German Millet
, \\6ji \� h \ �� .� fJ// �/j 7 0� \ \ J \ \ \ V / May 15-Aug.15 40
G� /� \ \\\ \ Aug.15-Dec.15 120
S �� \� �.;� \ \ ' ��- s� �� �( �\� S ` \ \\\ \ \,� Fertilize seedbeds with 2,000 Ibs/acre lime and 750-1000 Ibs/acre 10-10-10.
��\�� Mulch with 2 tons/acre clean straw or hay.
l s 1 �\ \ \ Tack with rapid settingemulsified asphalt at 10 al./1000 s ft.,or other
State of NC 630 \ i / \/ ' ° / f "� 1 \ \ 9 9 PP Y
\ \ \ \ \ \ tacking agent approved b Owner.
( ( ? 3
l For Permanent Seeding information refer to Std.6.11 in the NC State
/ \ o �_ �/ / l� , , -'� \ ✓� �� f ✓ ` \: \ ` \ \ \ Erosion Control Design Manual.
� o
500' Zoning Blasting \ ` I fr/ y ( \< o \ \� �'�\ J' \ \\ ✓
\ , Buffer Class B Rip Rap
Baffle(Replace
I \ \ \ s 1 \ ` , ,Z�\ / l.. ✓ �i \ � \\ �� �i `� every 6 months)
6
Basin
33%af ,.� Basin Outlet
Basin Inlet Basin 66%of
��� \ \ \ _� / \ Length Length
1 � l / � � � / - -` � Existing �'`. � -, -�..\ 1 0 �\\ ,�/•,•��j / / � 1 C\ \J '� \ / /
,/ �� Berm \ �+•. j S�� ` 0-
Class B Rip Rap Baffle Dimensions
Top Width-2'
J J 1 \ / Height-h
i�i5tl " /'� �1 � / Bottom Width-8'
AT THE TIME THAT AN ACTIVE FACE `\\ %�� �\ \ \ ` "� J 680 `� ``
BECOMES A DEAD WALL,INFORMATION J ''i `
WILL BE SUPPLIED IN SUPPORT OF l / / I g \ ^l0 -- -- -/^ Class B Rip Rap Baffle Detail
J - -� \` \\ f 69� z J P p
Existin
THE DETERMINATION ED FINAL SLOPE FOR
UNCONSOLIDATED MATERIAL \ 1 �-
(MAXIMUM SLOPE NOT TO EXCEED 3:1) \ ` Basin I ,. � � \ /� \ � �y-- ✓ _ s `�
10' SAFETY BENCH 10' 1 /} \ ` � ��5� _.''•\, �\ /' �_ O/ c \ , /
BENCH HT VARIES
WITH ROCK ELEVATION -. ,-„� I Le end
APPROXIMATE HEIGHT RANGE: --- -- --- ��1 �� / �- -
1 PERMIT BOUNDARY
WIDTH VARIES-APPROXIMATELY ---..� r ADJACENT PROPERTY LINE -
r I/Z OF HE E AB OF BENCH
II
FACE ABOVE 1
WIDTH WIDTH
y. � JO \• ' ,d►e = / TEMPORARY DIVERSION
PROPOSED \ \ / 1 �6LI
0-00
DEPTH MAXIM3 0' `to P'roposed ' -'� `Diversion EXISTING ROADS
TYPICAL CRO55-SECTION - PIT \ ' e� 6�80 _ \ ` i Berm // Berm
(TYp•) 00000
BASINS
t �
117,
ROM
PLACE MATERIAL FROM EXCAVATION ON /
DOWNHILL SIDE OF FLOW.USE ADDITIONAL y , / Diversion
'" \ � / ' �� / / / '� SETTLING CELLS
NOTE: FILL TO ACHIEVE SPECIFIED HEIGHT AND WIDTH- / / \ / I ` Berm �yp) ' �L ,r/ ' esc5 / / I .�
ALL DIVERSION DITCHES MUST PROVIDE ( \ �, "' � r0 I 0000
Q�
POSITIVE DRAINAGE TO EROSION
CONTROL BASINS. 2'MIN // ` / / � BOO '- / \ \` \ �_ ' / � Fi �-� �+
00000 BODY OF WATER
I� -I I I-I I �; J /� l \ / Monitoring / �r
FLOW T>�P+-)I I 1 �9d- 1 _= /..., i
4C r,
-� I I-III- Well#2 *
6jo. � � � \ _ 'J i / I BUFFER
_III-III= ^_- I I-a Proposed /
IIIIi- -l� Buffers classified other than unexcavated are
6'TYPICAL ` �! SHF-Mel lennium \ ' ��\ Sediment / rev listed on map.
VARIES �, , \ One Apts LLC Basin#2 .0000,
3'MIN SEED AND MULCH DIVERSION CHANNEL AND DIKE / (/ �)
IMMEDIATELY AFTER CONSTRUCTION.CHOOSE /
APPROPRIATE SEEDING MIXTURE FROM THE _ _ J J CURRENT P I T
SEEDING SCHEDULE.
TEMPORARY DIVERSION DITCH + / .�
HT University
NCSECDM STD.6.20 Village Owner LP \ \ f690 A / FUTURE PIT LIMIT
`- -7 -�00 / -�- CREEK
Charlotte Mecklenburg
BOULDERS (, 00000 Board of Education. EU TU R E BERM t=
3'Lx3'Wx3'D + L L LC14
L tj /
EXISTING BERM
W
PROCESSING AREASX
1
- �HIGHWALL �� / \
+ \ `� \ � � � PROCESSING EQUIPMENT
BOULDER BARRICADE
Sediment Basin DesignCalculations CDENR Std. 6.63 Martin East Division
(N ) / , *Current Proposed Change Total Affected �
Bottom Bottom Spillway Spillway weir To of Berm Settling ' Category Affected to Affected Acreage
Drainage Storage p y p y p g \ Acreage Acreage Mariana Structure Area Volume Q25 Length(ft) Width(ft) Depth(ft) Length(ft) Depth(ft) Efficiency(sf) g g Carolina Region
\
� **Tailings/Sediment Ponds 1.9 -1.9 0
Basin \ **Stockpiles 0 0 0
Exist.#1 1.33 2,520 9.55 35 20 4 12 5 NA ` \ Wastepiles 32.29 -12.89 19.4 Mallard CreekQuarry
Processing Arens/Haul Roads 47.06 14.94 62.0
2 1.40 5,040 5.75 45 20 5 10 6 2,196 9
Mine Excavation 61.85 1.39 63.2 Mine Plan
Notes: Other Unaffected 80.32 -8.56 71.8 SCALE V = 150'
• Calculations are based on Rational Formula 25=CIA C=060 I=8.21 /hr. Weir Formula =CLH 1.5 C=3.0 H=1.0 143.1 0.70 144.E Date: 9/16/2024 Scale: 1" = 150'
Q �� Q ( �� Total Affected Acreage - ----------------------
• Settling Efficiencies are based on Q10 * 435 SF Total Permitted Acreage 223.42 -7.02 216.4 s is 24 Design by: Mining Permit #60-09 Located:Charlotte, Mecklenburg Co.
ev` g 1 Revised to Update Site Conditions /
• Berm footprints will be modified in the field to allow room for basins to be constructed outside defined stream buffers. * No. Revision Date: Drawn by: JN Site Number:
� \� Current effected acreage based on currently approved mine plan. 0 75 150 300 450 600 I
** Acreage is included in other category calculations. H:\Charlotte Quarry Files\Mallard Creek_44410\Drawings\Mine Map\Mallard Creek Mine Permit Modification 9-2024 Updated.dwg