HomeMy WebLinkAbout20191125_Mine_MapSkimmer Sediment Basin Chart
4- Sch 40 PVC pipe
5fidlowpitexcowOed
Sediment Disturbed Q10 Volume Surface General Top Dimension (ft)
Skimmer Orifice
Td
through dam for
attaching skimmer to
_
i;b
under skimmer
Basin Area (Acres) (CFS) (Cubic Yards) Area(sf) (Length x Width x Depth
Size (in) Dia. (in)
(Days)
�
(Min. 8" Deep)
(Max 12. Deep)
#1 4.5 9.7 300 3153 230'L x 70'W x 2.5'D
2 1.7
3
10
Rope will Embankment
attached to to form basin
skimmer
Q10-CiA Orifice Dia. (in)=
C=0.3 Qd=dewatering rate=V/td (Cf/Day)
10' Wide Level fabric and Rip Rap Lined
t0=5 min V=Volume (C
Spillway Liree&slope also,
i10=7. 17 in/lax. td=Draw Down Time (Days=3)
H=0.167 ft For 2" Skimmer
wek•
Design Notes:
x x `
1. Side slopes from top of bank down to inside bottom of basin are to be 2:1
Baffle placement
2. Side slopes from top of bank to ex ground are to be no steeper than 3:1
Space 3 Bafflesequally
in Basin
<
3. Skimmers shall be Faircloth Skimmers or approved equal
Porous Baffles to be
4. Volume and Surface Area calculated with 1' free board to the top of the basin and 0.5'
to spill way.
700 g/mserosion
blanket, staked eery 3',
5. 325 sf minimum surface area per cfs of Q10 peak inflow
with wire support across
'
6. 66.7 cy minimum volume per acre of disturbed area
top
7. Upon complete restabilization of all disturbed areas, and approval by Engineer and NCDEQ-LQS,
Curve baffles
-
remove sediment basin and regrade Swale, fertilize, seed and mulch.
to make them
stronger
x
cwew
48" Hin
Palyett
a o
2' Berm Min. t_pa"se°F'r4 j0
FLaw
on
with Si
72- sn
00
3 Minim\ \
i �/ - -?\T
Secure
to T-Ps
-'
basin width
Lim Swale into Brain
with fabric and rap rap
Inflow into upper
end of basin
Temporary Diversion Swale
Temporary
Plan View
to scale
Clay/Ennhen
Note:
Spill., lined with
1. Use excavated material from swore to create berm.
6eotextile fabric and rip rapt
2. Swale and berm shall be grassed as soon as they
Top of impordment:
Excavation to form
are constructed.
10' Long Rip Rap Existing ground
Apron bred with
crest of ow;rflow
basin; used to build
embankment
Gea Textile Fabric
Skimmer
ex. ground!
Exist. Ditch
re Swale into Basin
pith fabric and rap rap
E-
V sch 40 PVC PO
pipe
through the dom at 1% 8affks
Treneh in
/
min slope
9'x9' bottoms 12"
Slight slope
bottom to
(/
Shallow pit outlet so water not the
r drains
excavated under skimmer
\
the skimmer
8"-12"Deep
1
Humphrey J R Heirs
Section View
D.B. 156, Pg. 215 N8122
Temporary Sediment Basin Detail
II
Not to Scale
Note: See chart for dimensions.
I
I 30' M
I Unex
Leo' J
Buffe
II
Ourler shoo Be Lew:l
Floating
/ to Allow Sheet Flow
Pump
r[
oiscnaige
Pipe 7 -�
4
20' x2O'
Rip Rap Lined
Stilling Basin
-I�yC
J> -� < -�
To Allow
Sheet Flow
Through Wetlaads
- Wetlands - II
20 x2o
Rip Rap tired Lip of Stilling
Wetlands'
Stilling Basin Basin Shall be
x
Line
Level
iu
Plan View
;_1
II
Stilling
I
Basin Shall be
Basin
4.e1
Qj
I
y
\
Sheet Flow Across
Exist' Graurd
Q
Do Not Disturb
Existing Slopes
(Typ.) Ira
10
4'A
Bof1pT
W
m
20'x20'
ilk
N I
Rip Rap Lined
Stilling Basin Section View
-
�Jq
ZI Y
Rip Rap Lined Stilling Basin Detail
DJ Humphrey
J
I4
For Pumped Discharge of Groundwater
$ George iber
35, Pg- 366
I
Not to Scale
Sy'
Steel Post
�c rhel
foyly,ty �J
Note:
Welded Wire Mesh
Burlap shall not be used.
6" Below Ground
Note:
'
Spacing for posts shall be:
1.8 feet maximum with wire mesh
or
Direction of 1
2.6 feet maximum without wire
- /'
mesh with extra strength
Run off flow
filter fabric.
Steel Post -
Welded Wire Mesh
Erosion $Siltation
F'
Control Fabric Compacted -
Soil
- Ground Line
24" Min.
Extra Depth Required
for Non -stable Soils
81. LI r
Section View
Typical Installation of Silt Fence
Not to Scale
Rev. 11-14-19 ELB - Add Orange Safety Fence and Sediment Basin Note.
Rev. 9-18-19 ELB - show ex. non -potable wells, revise cross-section detail, revise haul road, add stilling basin detail.
Existing Road
n
Plan View
Temporary
Stabilized Construction Entrance
i Densely Orange
Aene Safety Fence
Not to Scale
rage
Construction Specifications
doled T Past
1.
Aggregate size - Use 2-3 inch washed stone
Safety Fence
n with Zip nes.
2.
Length - As effective, but not less than 50 feet.
Fry 12" vertically
3.
Thickness - Not less than six (6) inches.
st
4.
Width - Not less than full width of all points of ingress or
trade
egress. Minimum of 12'.
5.
Install filter fabric under entire footprint of the construction entrance.
6.
Washing - When necessary wheels shall be cleaned to remove
Tract Data
Total Mine Boundary ..............
25.9± Ac.
Mining Excavation Acreage
........ 18.6± Ac.
Zone .............................
RSF-20 Zone
Existing Land Use ................
Existing Borrow Pit
/Undeveloped Agricultural
Proposed Land Use ................
Mining
Tax Map 1105, Parcel 44
Legend:
Ac. - Acres
Comp. - Computed Point
■ CMF - Concrete Monument Found
D.B. - Deed Book
cop - Edge of Pavement
ex. - Existing
0 IPF - Iron Pipe Found
O ISF - Iron Stake Found
M.B. - Map Book
Pg. - Page
IL- Property Line
R/W - Right-of-way
SHF5 - Scour Hole Flow Spreader
Typ. - Typical
` 12 , - Adjoiner
Wetlands Hatch
To Correct Section Overkp Two Ends by sediment prior to entrance onto public right-of-way. When T OSF- -Ora a Safe Fence General Mine Notes:
` a Minimum of 6' and We. a Wood Slat washing is required, it shall be done on an area stabilized with rl9 Safety
///// through the O.eriopped Openings. Secure crushed stone which drains into on approved sediment trapor - sf - - Silt Fence
O.erlapped Area to the T-Post with Zip Ties pp 1. Dewatering Pump shall intake water via a Floating Pick Up. Pick Up shall be constructed to allow pump
sediment basin. All sediment shall be prevented from entering - - -- Wetlands Line
to pull water from top 12"-24" of water. Dewatering shall not occur during mining operations or
any storm drain, ditch, or watercourse through use of sandbags,
gravel, boards or other approved methods. immediately after rainfall. Water shall be allowed to settle: and be clear prior to dewatering. See
/\\/\• /\ \/\\% \\/ \ 7. Maintenance - The entrance shall be maintained in a condition NPDE5 General Permit for additional requirements for Dewatering.
which will prevent tracking or flowing of sediment onto public 2. The Proposed Dewatering Pump is a 6" vacuum assisted dry prime fresh pump capable of pumping
rights -of -way. This may require periodic top dressing with 600-1,200 gpm.
\ additional Stone as conditions demand and repair and / or 3. Water trucks shall be utilized w needed to water down haul road to keep dust from leaving the area
cleanout of any measures used to trap sediment. All sediment, 4. There are na existing or proposed buildings within Mine Boundary.
spilled, dropped, washed or tracked onto public rights -of -way
Orange Safety To A Marshburn must be removed. I M N 4-
Flood
Zone
Zone
Ir
Fence Detail
nr
D.B. 749, Pg. 894
I
appmg o es.
M.B. 7, Pg. 3
I
1, The Lower portion of this site is the Site. of a previous NCDOT Borrow Pit, has a current erosion
Not to Scale
r 565°47'55"E
I
Charles Couley
control permit and is being currently used w a "Single Source" Borrow Pit. The upper portion of
Floodw W
to 249.10
-
564°27'3g'E
Dwayne
3189, Pg. 351ag;
the proposed mine is Agricultural Land.
Wetlands Line
50'
•� cob
Ix fi \
212.59'
D.B>
2. Boundary information taken from existing adjacent plats and deeds.
3. Wetlands is from delineation by Pittman Soil Consulting, Nov. 2018 by Parker
ditch
S60°Ol'35"E
\ �. i-_ �\ \
cpT' a. /// -
> - ?
m`j'
shown a and surveyed
ex. Unexcavated
81.12'
\ \\ Y
7, zg_ °
and Associates, Inc., Nov. 2018.
Buffer
existing ditch
l 585°17'44"E
120.25' 563° 44'Qryi
540°44' 13'E N82°44'40"E
86.12' 60.37'
O / `3t - -
b / / %' \ \ \ ` _ .-�
� f / �
- _ _ / / B•
- - - -2g / /
/
I - �-
4. Flood lines drawn from an electronic overlay of the digital flood map FIRM map CPN 370340 4397J
a-.. (Onsbw County) $ 370340 4398J (Onslow County), Effective November 3, 2005.
b 5 To ro hic contours taken from Lidw To from N C Floodm sand from actual surveys b Parker
517 04 38 W Po9 P Po .. apy
- - - - - - - / / �° / Richard Allen $ Associates Inc.
Mine \ S6' 7.36'
�' / 9l) 01'F ^ I Waits Life Estate 6. Other information taken from Onslow, County 6IS.
/Boundary ' _ / 2 / I Elbert $ I D.B. 1535, Pg, 798
Install Orange - «`S4go / Louise P Morton
SafetyFence ) 1 -�- - I a'� - -' l �3' Construction Sequence / Mine Development Plan:
\ Z� .I ! 46„ Trustees I
�I>6q 4A 22 i5F D.B. 4306, Pg. 76 I 1. Notify Parker $ Associates and NCDEQ prior to beginning mining operation of lard disturbance.
Unexcavated '� / �� �� \ V -� / Unexcavated I 1�g5 8�h rt 2. Install stabilized construction entrance prior to rani excavation.
(( c c / / . 1Y Elbert $ P beginning
Iil l • •. \ Buffer Buffer / ( ex. non -potable I Louise P Morton 3. Silt Fence shall be installed at the down slope edge of clearing immediately after areas up slope
r .6 '^ ¢ to sl I well are cleared. Silt Fence shall be maintained until slopes are stabilized permanently or no longer
I .X a o / _ _ - I Trustees Pes Per h 9e
I III I' y w .p eemet ig _ _ i 3M' - existing ditch I I sloped m from mini area. Silt Fences are shown based on topographic information in the
emetery- - i Mine Boundary to ,�-/r� D.B. 4306, Pg. 76 Pe may n9
III ( 3:1 Slope ` along William D $ I (� I locations expected to Be needed to trap sediment prior to entering down slope areas. Actual
' 11 `•. ex, botto - O OS SF OS w Sharon M Edwards I - locations of installation shall be adjusted to the actual physical on site topography. That is, where
cavated m of sit \_ IF--
r Two Rows �.• • • �� ¢ \ \ � v D.B. 991, Pg. 859 silt fence is not shown on the plan but the actual topography ref kcts a downward slope, silt fence
III_ of Porous Temporary ` N I ex. B $ A Homes of shall be installed. Where the actual topography reflects an upward slope silt fence is not required.
.I Baffles Diversion Swale ro building New Bern LLC 4. Construct sediment basins and rock check dams.
at Bottom of \ \\-_--// \\
Do Not Disturb � I D.B. 4741, Pg. 180 5. Mining operation to begin at low, points of Mine Excavation Area, as; shown an plan, and work
Slope Existing Slopes Top of Slope/ ya\ 585024'05'E toward higher ground. Provide ground stabilization (temporary or permanent) on perimeter areas
(Typ) - Excavation Limits 39.31' and slopes greater than 3:1 within 7 days following the completion of any Phase of grading or
Floatin9 Skimmer _ y \ I __ - --Elbert $ construction; and 14 days for all other areas internal to the project.
m �� _ - Louise P Morton 6. Perform ongoing
to Dewater Mine x \ maintenance and repair of all erosion and sediment control measures, permanent
Trustees
A� b Gravity\ \ p and temporary.
°1 D.B. 4306, P 76
y CrQ 0 \ L \ 57104.631 ISF I �j! _ g' 7. Stockpile areas, if needed, shall be inside mine excavation boundary.
.'P 0 v ISF N I ll- ^ 8 F addit I t t i t nd I f
�/
20'x20'
x"
Rip Rap Lined
/
Stilling Bassin
/
Floating
IIIDewateri/
Pump to Pump
I I I
into a 20'x20'
Rip Rap Lined
Stilling Bassin
or I Iona cons ruc ion, mom erlance a opera fion m ormot on and requirements, see the erosion
o -f- -" \ y� V6 325' to Mine Boundary ex. non -potable Y o � �n control permit, and the Mining Permit issued y he Division of Energy,
N o from Existing Ditch Per well jv ,�.,, O P 9 by rgy, Mineral and Land Resources,
v VV T, Pearl C Adams Land Quality Section.
S m Agreement p cu I
D.B. 4490, Pg. 604
-
Install Orange ex. 576'08'30E r~ O --
I
\
- 7 Safety Fence 1
building 10700' m °J ¢'
Elbert d
n
/ I N76'07'01!W Louise P Morton
O
L > 105.83 Trustees
ISF
x x D.B. 4306, Pg. 76
30'
j°e I N -/--/ I Daniel Ray $
\ \ Temporary Unexenvated ui
c I \ Top of Slope/ O N Jessie H Morton
(� Diversion Swale Buffer °v-,
0- \ Excavation Limits I bl D.B. 1093, Pg. 37
Category
Affected Acreage
Stockpiles $ Waste ilex
Within Excavation Area, if needed
Haul Rood within Buffer
0.2±
Mine Excavation (Includes Sediment Basin)
18.6±
Unexcavated Buffer (Included Haul Road)
q 1t
Wetlands
3.21 Ac
Mine Permit Boundary Acreage
25.9±Ac
Note: Total Permit Boundary acreage includes Excavation Area, Buffers and Wetlands
w I \I I at Bottom of V) a:x. non -pots e
Slope existing veil Seeding Specifications:
borrow _ _ _ - / - -` //////������approx. o _ Apply lime and fertilizer and work into 4 - 6 inches of soil. Seed
? I I pi} - / �' location S76°15'05°E x mixture shall be distributed uniformly and covered with a clean straw
36- LL \ of existing 107 00 '2. mulch. All mulch shall be crimped or asphalt tacked to hold in place
I y\ I I O ce \ ditch to Jessie H $ Material and application rates as follows, and are generally considered
3 y : w minimums. 'Mulch rate to be doubled if crimped`:
I Daniel R Morton
existing g $ D.B. 854, Pg. 836 Material Application Rate
- bottom I rn Lime 3000 lbs./ac.
of slope _-� - Fertilizer (10-10-10) 750 lbs. /ac.
in. (� ( Elbert$ Mulch 2 tons/ac.
ovated - III N Louise P Morton Asphalt Tack 435 gal. /ac. (Max)
III
existing to i - O I Trustees Permanent Seeding I P / \ Stabilized D.B. 4306, Pg. 76 -� Common Bermud
� �� a
I II \ of slopee - - - - - -_ / : Construction (Unhulled Sept. 1 - April 1) 100 lbs. /ac.
C Existing Entrance (Hulled April 1 p
- Weil nds- I ( - Top of Slope/ 20' Wide I «dray 513°34'45"W - Se t. 1) 75 lbs./ac.
e
I I ^ Excavation Limits 33 sc Haul Road ex. as a, P 40.31' "Rebel" Fescue 50 lbs./ac.
I \I I - - - - 28. A, Rye Grain (Sept. 1 -April 1 only) 50 lbs./ac.
� 83°
I I I Do Not Disturb -- - - - ^ N German Millet (April I - Sept. 1 only) 50 lbs./ac.
/ cMF gq 23 Kenneth A. Hall Temporary Seeding
de Existing Slopes f slop¢ ate / - -- 5a45'18"W I D.B. 880, Pg. 749 Dec. 1 -April 1
o
bottom Do Not Excov \ e �2-I / N8221Db, I I M.B. 6, Pg. 101 Hobe Lespedeza 50 lbs./ac.
ing
I Wetlands I I) :� exiSto Iope s'o ` --�
s ISF Rye Grain 120 lbs. /ac.
I Line 1 i °f ti���s W Rq,� / End of Asphalt I Jacobs W $ April 15 - Aug. 15
1 I Min. \\� g 5°q5 q5"W _ A Emm Lawrence German Millet 90 lbs. /ac.
l e 5p' _ _ ..` \ \ ( carp 1� q6y' Sion Eduardo$ /, Rue Grain Dec. 30 120 lbs. /ac.
\ aopd unex ted \ \ I I 15 I Veronic Michele Roach / 1 2 , D.B. 489, Pg. 588 y
\ \ Buffer D.B. 4792, Pg. 947 - I M.B. 34, Pg. 111 '7enne-TF-A. Hall
Wetlands Line f- N71009'11"W rlbo-8'47. CMF 5 49 25 W / Benchmark I M.B. 29, Pg. 81 / I m D.B. 2564, Pg. 659
E 51' 71, 25245 Development P 9
f q1° 205.75' W x x I Mine Site Plan
30 i N89° 60g I 8 20' Corporation Install Silt Fence / _ \ I I a
12 N6b61.87' "W $
) B +c h2 q0' I existing ditch 6187' I \ D.B. 913, Pg. 459 15' Off Haul Road r 13 /
`f7 �° o• / 66 8 \ N67009'43"W along tt _ \ M.B. 29, P 81
9°" f I 1 , , _ 9 \1 9 - I / Daniel I PETE MORTON PIT
$2 48.63' I v 6 t x ` I f N56°29'10' \ _ \ 11 , -
- , \ _ N Norvell
Flood
/tip A'' N79°05'48"W \ 5 + Candice K I George E $ 8 / 50.33' LindalA Haley / 10 / I D.B. 2658, Pg. 308 ON HALLTOWN ROAD
_ Jones Barbara A Murphy Bennie $ Install Silt ey \ M.B. 41, Pg. 159
57.45' William V $ I D.B. 4746, Pg. 877 D.B. 2287, P . 569 I Carol n W Smith D.B. 1158, Pg. 437White1 i
I 9 Y Fence and Thomas R$P.
I g M.B. 58, Pg. 81 Oa Tw Onslow Co., North
4 \ Shirley S Waters 1 M.B. 26, Pg. 217 M.B. 26, Pg. 217 D.B. 1136, Pg. 503 Orange Safety Gina C Beecher
N71°41'30"W 155.35' Owner: Developer:
( _ D.B. 1370, Pg. 224 M.B. 27, Pg. 120
Install Silt M.B. 26, P . 217 Fence 5' Off D.B. 3661, Pg. 384
9 Haul Road M.B. 29, Pg. 81 The Morton Family
b°) Fence and James LH \ Mire Excawtion Limits Buffer Morton Trucking, Inc.
Flood Orange Safety Margaret L Head Revocable Trust
Zone-AESharon Edwards, Executor
Zone � _ � Fence 5' Off D.B. 1853, Pg. 659 r 121 Garner Lane
f 3 / M.B. 53, 217 4gt\in1111ht
4i` \ _ Hnul Road 9 Lakel After oral 3:1 slopes for sandy Material ;l N CAR ' , i` I l e D.B. 4306, Pg. 76 Jacksonville, NC 28546
Le��b0 Christopher Paul Pecli otion ter/\ /\\�/� erouM 3a Slopes for Sally Material ,p4 Q4� Ol/'., 7
\ $ Miriam Phillips Exist. 5rwnd
.4 a: •o Y
Humphrey \ D.6.1674,Pg.442 >\ \\ \ \ \\ \\� \\ \ \ \ \\/\\ �$ = DATE: 07/22/19 GRAPHIC SCALE: 1°=100'
J L Heirs M.B. 26, Pg. 217 _ SEAL 1 _
2 6 ° " au zo -30 3:1 or Lela Stoop 14575 fI ^ 0 50 100 200 300
D.B. 81, Pg, 376 \ _ \ Mim Exmwt'on 3:1 slopes in Sandy Soils Typical Ct'oss-Section of S• ; h B I- I L 1 � (�k', � II _ I
Vaughan E$ Stockpile of Overburden Areas �, •.Fy �P;'PQ; F1' INTED + SCALE: 1 -100
\ Linda MTaylor \�\�\ p %Q GINS• �PARKER & ASSOCJATES INC FEET
/D.B.4624,Pg.406 ttoScale """'(H, $S". COIMIULTIPGLIMG[rEERS LAhDSURyEYORS LANDPLANNFL' PARKER & ASSOCIATES, INC.
M.B. 26, Pg. 157 Typical Cross -Section of Note: ,,Ant/1 s11/11111,,, P. O. BOX 976 JAC"lliNVIU.E BC 2iS'11.0976
Stock piles are to be pldEed inside mining limits and shall Engineers - Surveyors - Planners Ak
Mine Excavation/ Reclamation Lake be wrapped in silt fence an sides draining away from mine to Field Book: Jack North Mix, Pg. 64 Jacksonville, North Carolina
meNot to scale prevent offsite sedimeri Disk Na: Acod# P.O. Box 976 - 306 New Bridge Street - 28540
Filename: Morton Pit - Erosion.dwg ELB Phone (910) 455-2414 - www.ParkerJacksonville.com
Job No.: S181004-6909 Sheet 1 of 1
N.C. Firm License Number: F-0108