SW8090528_APPROVED PLANS_20090723

STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO.
SW8 ooO5)-y
DOC TYPE
❑ CURRENT PERMIT
APPROVED PLANS
❑ HISTORICAL FILE
❑ COMPLIANCE EVALUATION INSPECTION
DOC DATE
2G�g0123
YYYYMMDD

Progress Energy Carolinas, Inc. Raleigh, NC
BRUNSWICK NUCLEAR PLANT UNIT 1
CAPACITOR BANK INSTALLATION
SOUTHPORT, BRUNSWICK COUNTY, NORTH CAROLINA
0
0
00
10
T=00
BRUNSWICK NUCLEAR PLANT
SITE
BRUNSWICK NUCLEAR PLANT
�0
I
I
SITE I
I
09
I NSET A
1'= 500'
ti
DOSHER CUTOFF
L~O
(HWY 133) Q
02
�
JABBERTOWN
RD SOUTHPORT CITY LIMITS
Dewberry
Dewberry & Davis, Inc.
2301 REXWOODS DRIVE
SUITE 200
RALEIGH, NC 27612
PHONE: [phone]
FAX: [phone]
DRAWING LIST STORMWATER PACKAGE NO.
PROGRESS ENERGY
ASSIGNED NO.
COVER SHEET
C-1
ROC-54506
EXISTING CONDITIONS
C-2
RDC-54507
NEW WORK PLAN
C-3
ROC-54511,
SH
1
OF
2
NEW WORK DRAINAGE AREA MAP
C-4
RDC-54511,
SH
1
OF
2
PHASE I FROSION CONTROL PLAN
C-5
RDC-545129
SH
1
OF
2
PHASE II EROSION CONTROL PLAN
C-6
RDC-545139
SH
1
OF
2
STORMWATER DETAILS
C-7
RDC-54514,
SH
1
OF
4
STORMWATER DETAILS
C-8
RDC-54514,
SH
2
OF
4
STORMWATER DETAILS
C-9
RDC-54514,
SH
4
OF
4
PPf' vE[)
NORTH CAROLINA ENVIRONMENPJ
MANAGEMENT COMMISSION
DIV SI N OF V4�TER gUALITY
C - I
NCDENR STORMWATER PERMIT PACKAGE
COVER SHEET
If,,"
CAR&
AL
ngnaaal.A 9 =
RDC-54506.

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BASIN INFORMATION
DA A
DA 8
RECEIVING STREAM NAME
NANCY'S
CREEK
NANCY'S
CREEK
RECEIVING STREAM CLASS
SC. HOW.
BVC, SW
SC. HOW.
BVC, SW
DRAINAGE AREA
0.86 AC
1.17 AC
EXISTING IMPERVIOUS AREA
0.00 AC
0.00 AC
IMPERVIOUS AREA TOTAL
0 %
0 %
COMPOSITE C
0.20
0.20
PRE -DEVELOPMENT
0
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EXISTING CONDITIONS
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: . . -
: . : :
- I I : - Ow',&M. Progress Enerav
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Progress Energy Carolinas, Inc. Raleigh, NC
".111, , ..��,O
I BRUNSWICK NUCLEAR PLANT UNIT I FVR MCH TFB CAPACITOR BANK INSTALLATION
FVR MCH TFB
FVR MCH TFB EXISTING CONDITIONS
FVR MCH TFB LOCATIONSOUTHPORT, BRUNSWICK COUNTY. NORTH CAROLINA
FVR MCH B SCALE 1" = 30' SCALE RATIO Is 1
FVR I MCH I TFB DRAWN FVR CHK. MCH APP. TFB
BY CK. APPI
DATE 0 "' ltD/09 DWG. NO. RDC-54507
. I I

NOTESt
TOTAL DISTURBED AREA - 3.13 ACRES
EXISTING UNDERGROUND UTILITY LOCATIONS WERE TAKEN FROM AVAILABLE
INFORMATION AND ARE APPROXIMATE ONLY. CONTRACTOR SHALL VERIFY THE
LOCATION OF ALL EXISTING UTILITIES PRIOR TO BEGINNING CONSTRUCTION.
ANY UTILITIES DAMAGED DURING CONSTRUCTION SHALL BE REPAIRED
IMMEDIATELY WITH NO ADDITIONAL COST TO THE OWNER. CONTRACTOR SHALL
NOTIFY THE NC ONE CALL CENTER OR THEIR SUCCESSORS AT 1-800-932-4949
PRIOR TO EXCAVATION. CONTRACTOR SHALL NOTIFY PROGRESS ENERGY
CAROLINAS, INC. IMMEDIATELY IN THE EVENT OF ENCOUNTERING ANY
UNDERGROUND OBSTACLE REWIRING A DEVIATION FROM THE PLANS.
IN
SEE OWN. C-5 & C-6 FOR EROSION AND SEDIMENT CONTROL MEASURES.
PROGRESS ENERGY CAROLINAS, INC. EQUIPMENT PLAN NOT SHOWN FOR
CLARITY.
PROJECT LIMITS FOR STORMWATER PERMITO
TOTAL AREA11- 2.03 ACRES SEE
SHEET, C-4 FOR DRAINAGE AREA MAP
I WORK LEGEDe
AND CALCULATIONS
I SPOT SHOT X 00.01
ZITS OF CONSTRUCTION — — — — — — —
If
tECTION OF FLOW
31
IRM DRAINAGE SCHEDULE
PIPE NO.
PATH
FROM TO
SIZE
LENGTH
PIPE
INV OUT INV IN
SLOPE
MATERIAL
P-1
N/A
P-5
41
681
20.82'
20.480
.5"A
PERFORATED PVC
P-2
N/A
P-5
4@
621
20.82,
20.480
.56
PERFORATED PVC
P-3
N/A
P-5
4@
681
20.82'
20.480
.504
PERFORATED PVC
N/A
P-5
4-
62'
20.82'
20.48'
.5A
PERFORATED PVC
N/A
JB-1
Go
120'
20.54'
19.94,
.5A
PVC
jB-1
GRADE
Go
631
19.54'
1 18. 50'
1. 7V
1 PVC
N/A
N/A
181
360
18 - 38'
1 18.19'
.56
I RCP
If
-ITS OF CONSTRUCTION, T Y P
/ 1z
OD
C3
Ix
CD
C3
If,
71 CHAIN LINK
F WITH 3 STRANDS
WIRE ON TOP. TYP.
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24.5
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SEE SHEET ROC-54514
0,
' IfI FOR DETAIL
z9
7
If ?4.5
PERMANENT
X
LEVEL SPREADER.CLASS"IS R115
- — — — — — — — —
LENGTH 50,31
V RAP FOREBAY
12'W X 12'1-
23.94 t.
4.
�UKTION 80X
WITH'
RIND & COVER -MANHOLE
(JB-1)
TOP -,24.0
24.0
r
PERMANENT
LEVEL, SPkADERV
LENGTH`-. 15
NV
CLASS B RIP 20
RAP FORE
f 1v
'W X 5'L
&77
Ow
23.86
E
If f,a.
WEIR, GNCY LENGTH -,5'.
f 23.400
"Is
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N
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.86
Is
If X\
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INV
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-\\A C
GRAPHIC SCALE
,
ZIA0 '
20 10 20 40 80 03p
MEMO /V
- -- - ----- - IN P
I INCH FEET - 20 FT.
5 05/22/09 REVISED FINAL SITE RELEASE
4 04/17/09 REVISED FINAL SITE RELEASE
if If
3 02/25/09 REVISED FINAL SITE RELEASE
/<
2 01/15/09 FINAL SITE RELEASE
If </
1 12/11/08 INTERMEDIATE SITE RELEASE
If 0 11/03/08 INITIAL RELEASE
2110
NO. DATE REVISION
C-3
NCDENR STORMWATER PERMIT PACKAGE
NEW WORK PLAN
Progress Energy
A'
Progress Energy Carolinas, Inc. Raleigh, NC
BRUNSWICK NUCLEAR PLANT UNIT I
CAPACITOR BANK INSTALLATION
GRADING & DRAINAGE PLAN
FVR
MCH
TFB
FVR
MCH
TFB
FVR
MCH
TFB
FVR
MCH
TFB
LOCATION SOUTHPORT, BRUNSWICK COUNTY, NORTH CAROLINA
SCALE 1" = 20' SCALE RATIO 1:1
DRAWN FVR CHK. MCH APP. TFB
DATE 07/15/09 DWG. NO. RDC-54511, SH 1 OF 2
FVR
MCH
TFB
FVR
MCH
TFB
BY
CK.
-APP.

If
NEW WORK LEGEDe i-1V 11
Z
LIMITS OF CONSTRUCTION — — — — — — — LIMITS OF CONSTRUCTION T)
p
DIRECTION OF FLOW jt
t if
x
Z
BASIN INFORMATION DA C DAD DA E DA F I/
ff lip
it /
RECEIVING STREAM NAME NANCY'S NANCY'S NANCY'S NANCY'S CV)
CREEK CREEK CREEK CREEK
OD
C3
4x
RECEIVING STREAM CLASS SC, HOW, SIC, HOW, SC, HOW, SIC, HOW t t
BVC, SW BVC, SW BVC, SW BVC, SW C3
DRAINAGE AREA 0.40 AC 1.20 AC 0.37 AC 0.06 AC
r C3
EXISTING IMPERVIOUS AREA 0.00 AC 0.00 AC 0.00 AC 0.00 AC t
HI
PROPOSED IMPERVIOUS AREA 0.00 AC 0.80 AC 0.11 AC 0.00 AC if t
X IMPERVIOUS AREA TOTAL 0.00 X 66.67% 29.72% 0.00% t I•
,COMPOSITE C 10.25 .0.68 0.44 0.25 f
IPOST DEVELOPMENT 0 (CFS)10.50 14.30 0.90 10.1 t
If
J
ti
-Vt
If
V,
if tt,
t
Iif
It
tif
X
tv,
it.
PERMANENT
If if 'LEVEL SPREADER. If
LENGTH 50' CLASS`B RIP
RAP FOREBAY
>
t 12'L, t, I/ 121W X
11V
If
It J it it
rs, t t
•
I it
-,
It j
I t I \, V, I
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If JUNCTION BOX
WITH MANHOLE 2 t
RING & COVER
(JB-1),
TOP -.24.0'
j
If If
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LEVEL,SPREAbER,
LENGTH , \%
I N
Vvit <
V-1
W
CLAS B RIO
20.
FU V
/V
'W X 5'L IN
IV-
�� 0 - I
UNIUT OVERFLOW
WEIR, LENGTH
4 -
ELEV. 23.40'
f
fV
20.94
1V
it
V`
V/
TW
'X
If 20.8
N
INV.
20.82
x
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<
If
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> I 6k, Tp.7IftTSFCDSTRNbT
%
C -4
t, bA
NCDENR STORMWATER PERMIT PACKAGE
11 10
I .... . . ... ... ......................... ........ . (q
NEW WORK DRAINAGE AREA MAP
14
n.
\A U (A R
it
GRAPHIC SCALE
E L
t -Z %\ 20 10 20 40 80
ry
ti
Progress Energy
i J'
. .........
1, 11Z
------- IN FEET Progress Energy Carolinas, Inc. Raleigh, NC
I INCH • 20 FT.
'A
BRUNSWICK NUCLEAR PLANT UNIT 1
t TFB CAPACITOR BANK INSTALLATION
REVISED FINAL SITE RELEASE FVR MCH
��`
5 05/22/09
4 04/17/09 REVISED FINAL SITE RELEASE FVR MCH TFB
Dewberry
REVISED FINAL SITE RELEASE FVR MCH TFB GRADING & DRAINAGE PLAN
t /A" 3 02/25/09 Dewberry & Davis, Inc.
2301 REXWOODS DRIVE f F
t, f 2 01/15/09 FINAL SITE RELEASE FVR MCH TFB LOCATION SOUTHPORT, BRUNSWICK COUNTY, NORTH CAROLINA
SUITE 200
1 12/11/08 INTERMEDIATE SITE RELEASE FVR MCH TFB SCALE I" = 20' SCALE RATIO lel
RALEIGH, NC 27612 t
PHONE: [phone] f
t f If "4 /03/08 INITIAL RELEASE FVR I MCH TFB DRAWN FVR CHK. MCH APP. TFB
FAX: 919S81.9923 f ZV` 0 11
- RDC-54511, SH 1 OF 2
07/15/og DWG. NO
BY I CK. APP. DATE NO. I DATE REVISION

METAL POSTS
1.5' INTO G
MAX. 1.5' A
GALVANIZED HARDWARE
WIRE EXTENDS TO TOP
OF BOX
(3/8' MESH)
6,
•57 WASHEO
STONE
MAINTENANCE
I.
9
3.
12' .&
a6, i
CONTRACTOR SHALL INSPECT THE GRAVEL FILTER AT LEAST EVERY SEVEN DAYS AND AFTER EACH
SIGNIFICANT (1/2 INCH OR GREATER) RAINFALL AND MAKE REPAIRS AS NEEDED.
CONTRACTOR SHALL REMOVE SEDIMENT AS NECESSARY TO PROVIDE ADEQUATE STORAGE VOLUME FOR
SUBSEQUENT RAINS.
WHEN THE CONTRIBUTING DRAINAGE AREA HAS BEEN ADEQUATELY STABILIZED, CONTRACTOR SHALL
REMOVE ALL MATERIALS AND UNSTABLE SOIL. CONTRACTOR SHALL BRING THE DISTURBED AREA TO
PROPER GRADE, THEN SMOOTH AND COMPACT IT AND APPROPRIATELY STABILIZE ALL BARE AREAS
AROUND THE INLET.
TYPICAL CATCH BASIN/
YARD INLET PROTECTION (TEMPORARY)
NTS
TRANSITION
W TO 0 GRADE
VEGETADED
DIVERSION W uuU� U
W W W eW pu STABILIZED
`ow U°". SLOPE
STABLE
UNDISTURBED nw Y b y L / y y �� y MATERIAL
OUTLET yu_ yu u STAPLED IN
bmPLACE
U
Ow
LEVEL LIP OF —�
SPREADER
PLAN VIEW
CONSTRUCTION SPECIFICATIONS:
1. THE MATTING SHOULD BE A MINIMUM OF 4 FT WIDE EXTENDING
6 INCHES OVER THE LIP AND BURIED 6 INCHES DEEP IN A
VERTICAL TRENCH ON THE LOWER EDGE. THE UPPER EDGE
SHOULD BUTT AGAINST SMOOTHLY CUT SOD AND BE SECURELY
HELD IN PLACE WITH CLOSELYS SPACED HEAVY DUTY WIRE
STAPLES AT LEAST 12 INCHES LONG. THE MATTING SHOULD
BE AN EROSION -RESISTANT MATERIAL, SUCH AS FIBERGLASS
MATTING TO PREVENT EROSION AND ALLOW VEGETATION TO
BECOME STABILIZED.
2. ENSURE THAT THE SPREADER LIP IS LEVEL FOR UNIFORM
SPREADING OF STORM RUNOFF.
3. CONSTRUCT THE LEVEL SPREADER ON UNDISTURBED SOIL (NOT
ON FILL).
4. CONSTRUCTION A 20-FT TRANSITION SECTION FROM THE
DIVERSION CHANNEL TO BLEND SMOOTHLY TO THE WIDTH AND
DEPTH OF THE SPREADER.
5. DISPERSE RUNOFF FROM THE SPREADER ACROSS A PROPERLY
STABILIZED SLOPE TO NOT EXCEED 10%. MAKE SURE THE
SLOPE IS SUFFICIENTLY SMOOTH TO KEEP FLOW FROM
CONCENTRATING.
G. IMMEDIATELY AFTER ITS CONSTRUCTION, APPROPRIATELY SEED
AND MULCH THE ENTIRE DISTURBED AREA OF THE SPREADER.
LEVEL SPREADER DETAIL (TEMPORARY)
Dewberry
Dewberry & Davis, Inc.
2301 REXWOODS DRIVE
SUITE 200
RALEIGH. NC 27612
PHONE: [phone]
FAX: [phone]
9
MAINTENANCE
VARIABLE
1
3
N.
CHANNEL LINING
(SEE CHANNEL LINING DATA)
CHANNEL LINING DATA
CHANNEL
LINING TYPE
MINIMUM SHEAR
NUMBER
STRESS (LB/FT SO)
1
STRAW W/ EXCELSIOR MATTING
1.50
TYPICAL DIVERSION CHANNEL (PERMANENT)
NTS
INSPECT LEVEL SPREADERS AFTER EVERY RAINFALL
UNTIL VEGETATION IS ESTABLISHED, AND PROMPTLY MAKE
NEEDED REPAIRS. AFTER THE AREA HAS BEEN STABILIZED,
MAKE PERIODIC INSPECTIONS AND KEEP VEGETATION IN A
HEALTHY, VIGOROUS CONDITION.
CROSS SECTION
ENTRANCE
WIDTH (FT)
DEPTH (FT)
END
WIDTH (FT)
LENGTH (FT)
10
0.5
3
10
1
3
GRASS LINED
CHANNEL
LEVEL SPREADER LIP, CONCRETE
RIBBON WEIR PARALLEL TO —
CONTOUR LINES, SEE PLANS
FOR LENGTH
RECEIVING
WETLAND
•57 STONE
ON FABRIC
STABLE
UNDISTURBED
OUTLET AREA
STABLE
UNDISTURBED -J
OUTLET AREA
DOWNSTREAM 'LIP' MUST BE LEVEL
THE ENTIRE LENGTH OF SPREADER,
SEE PLANS FOR ELEVATION.
CONCRETE RIBBON WEIR,
6' THICK X 18' DEEP,
•4e6' OCEW —�
(2500 PSI)
K� �3'tx:Zi7�'3I1�� I1P
FOOTING, 6' THICK X
12' WIDE, •4 @ 4' OC EW WITH
CLASS B LAP STD HOOK, SEE I�
PLANS FOR LENGTH 7
(2500 PSI)
CONSTRUCTION SPECIFICATIONS
1. ENSURE THAT THE SPREADER IS LEVEL, FOR UNIFORM
SPREADING OF STORM RUNOFF.
2. CONSTRUCT THE LEVEL SPREADER ON UNDISTURBED SOIL.
(NOT ON FILL)
3. CONSTRUCT A 20 FOOT TRANSITION SECTION FROM THE
DIVERSION CHANNEL TO BLEND SMOOTHLY WITH THE WIDTH
AND DEPTH OF THE LEVEL SPREADER.
4. DISPERSE RUNOFF FROM THE SPREADER ACROSS A PROPERLY
STABILIZED SLOPE, NOT TO EXCEED 10%, MAKE SURE
THAT THE SLOPE IS SUFFICIENTLY SMOOTH TO KEEP THE
FLOW FROM CONCENTRATING.
5. IMMEDIATELY AFTER IT'S CONSTRUCTION, APPROPRIATELY
SEED AND MULCH THE ENTIRE DISTURBED AREA OF THE
LEVEL SPREADER.
6. LEVEL SPREADER DESIGN SHALL BE BASED ON CURRENT
DIVISION OF WATER QUALITY DESIGN GUIDELINES.
SPREADER LIP- CONSTRUCT THE LEVEL LIP ON
UNDISTURBED SOIL TO UNIFORM HEIGHT AND ZERO
GRADE OVER THE LENGTH OF THE SPREADER.
OUTLET AREA- THE OUTLET DISPOSAL AREA MUST BE
GENERALLY SMOOTH AND WELL VEGETATED WITH A
MAXIMUM SLOPE OF 10Z.
CLASS B RIP
RAP FOREBAY
OUTLET PIPE OR �
_ GRASSED WATERWAY /
FROM WATERSHED
GRASS LINED CHANNEL 6 INCHES DEEP, 1' FOOT WIDE.
NOTE: EROSION CONTROL NETTING TO BE
INSERTED AND SECURED IN GRASS LINED
CHANNEL.
CLASS B RIP RAP FOREBAY
ON TOP OF
FLOW FILTER FABRIC
END OF PIPE
3'
TURBED GROUND
MAINTENANCE HIP194P F019EB4Y SHALL C011)9 FIZ TE,91491FIC
INSPECT THE LEVEL SPREADER AFTER EVERY RAINFALL UNTIL EDGES AND BE SHAPED TO 0,901110E AOEOUATE
VEGETATION IS ESTABLISHED AND PROPERLY MAKE ANY NEEDED 0,90T=0111AROUNDTHE010E0lITF,9ZZ,
REPAIRS. AFTER THE AREA HAS BEEN STABILIZED, MAKE PERIODIC INCZZV.1NG THE TOP OF THE PIPE, SEE SHEET
INSPECTIONS AND KEEP VEGETATION IN A HEALTHY, VIGOROUS ROC-5-1511 FOH N1N. FO,9EB4I' SIZES.
CONDITION.
3/4' CHAMFER (TYP.)
#4 DOWEL WITH STANDARD
90 DEGREE HOOK AT 12' O.C.
(2) •4 BARS CONT.
(2) •4 BARS CONT.
•4 BAR AT 36' O.C.
NOTE; USE 3000 PSI
CONCRETE RIBBON WEIR
LEVEL SPREAD DETAIL (PERMANENT)
NTS
o`'�.VN CARD �'•
J ()�
C-7
NCDENR STORMWATER PERMIT PACKAGE
STORMWATER DETAILS

SEEDING SCHEDULE IN COASTAL AREAS
1. LIME, SEED AND FERTILIZER SHALL BE APPLIED WITH NECESSARY EQUIPMENT TO GIVE UNIFORM DISTRIBUTION OF THESE MATERIALS. THE KINDS OF MATERIALS TO
BE APPLIED PER ACRES
TEMPORARY SEEDING
DATE
DEC. I - APR. 15
APR. 15 - AUG. 15
AUG. 15 - DEC. 30
PERMANENT SEEDING
TYPE
RYE (GRAIN)
KOBE LESPEDEZA =
GERMAN MILLET
RYE (GRAIN)
PLANTING RATE
120 LBS./ACRE
50 LBS./ACRE
40 LBS./ACRE
120 LBS./ACRE
FERTILIZER
10-10-10 BLEND
750 LBS./ACRE
750 LBS./ACRE
1000 LBS./ACRE
LIMESTONE
2000 LBS./ACRE
2000 LBS./ACRE
2000 LBS./ACRE
STRAW MULCH
4000 LBS./ACRE
4000 LBS./ACRE
4000 LBS./ACRE
FERTILIZER --
DATE TYPE PLANTING RATE 10-10-10 BLEND LIMESTONE== STRAW MULCH
APR. I - JULY 15 PENSACOLA BAHIAGRASS 50 LBS./ACRE 500 LBS./ACRE 3000 LBS./ACRE 4000 LBS./ACRE
FEB. 1 - MAR. 31 CENTIPEDEGRASS 5 LBS./ACRE
GERMAN MILLET 10 LBS./ACRE
= OMIT KOBE LESPEDEZA WHEN DURATION OF TEMPORARY COVER IS NOT TO EXTEND BEYOND JUNE.
_= QUANITIY OF FERTILIZER AND LIME SHALL BE CONFIRMED BY SOILS TEST.
2. SEEDED AREA SHALL BE CULTIPACKED TO FIRM SEEDBED AND COVER SEED.
3, GRAIN STRAW SHALL BE APPLIED OVER SEEDED AREAS AS A MULCH WITHIN 24 HOURS OF THE INITIAL SEEDING OPERATION. NO BARE GROUND SHALL BE VISIBLE WHEN
RIDING BY A MULCHED AREA IF PROPER APPLICATION IS ACHIEVED. THICK CLUMPS OF STRAW ARE NOT PERMISSIBLE AS A UNIFORM COVERAGE IS EXPECTED.
4, MULCHED AREA SHALL BE TACKED WITH LIQUID ASPHALT AT A RATE OF 0.10 GALLON PER SQUARE YARD (10 GAL/1000 SO. FT.). HYDRAULIC TACKING MATERIAL SHALL
BE USED IN HIGH QUALITY WATER ZONES AND CRITICAL HABITAT AREAS.
5, DITCH TREATMENT SHALL BE USED IN AREAS WHERE STEEP GRADES COULD CAUSE DITCH EROSION. USE OF EXCELSIOR MATTING OR FIBERGLASS/SYNTHETIC ROVING IS
ACCEPTABLE. DITCH TREATMENT SHALL BE INSTALLED BEFORE MULCHING OPERATION.
6. VEGETATION SHALL BE ESTABLISHED ON ALL DISTURBED AREA WITHIN 15 DAYS OF COMPLETION OF ANY PHASE OF GRADING ACTIVITIES OR WHERE CONSTRUCTION WILL
TEMPORARILY CEASE FOR MORE THAN 60 CALENDAR DAYS.
PHASE I EROSION AND SEDIMENT CONSTRUCTION SEQUENCE
1. IMPLEMENT THE REQUIREMENTS OF THE STATE APPROVED EROSION CONTROL PLAN. NOTIFY THE
STATE LAND QUALITY SECTION AT 910-796-7215 AT LEAST 48 HOURS PRIOR TO BEGINNING
CONSTRUCTION ACTIVITIES.
2. NO DEMOLITION, CONSTRUCTION, OR LAND DISTURBANCE ACTIVITIES MAY BEGIN ON THE SITE
UNTIL ALL EROSION AND SEDIMENT CONTROL MEASURES HAVE BEEN INSTALLED IN LOCATIONS AS
SHOWN ON THE CONTRACT DRAWINGS. IF CLEARING IS REQUIRED FOR INSTALLATION OF THE
GIVEN MEASURE, ALL OTHER MEASURES SHOWN SHALL BE INSTALLED FIRST. THE NECESSARY
LAND DISTURBANCE ACTIVITIES REQUIRED FOR INSTALLATION OF THE GIVEN MEASURE MAY THEN
PROCEED.
3. INSTALL GRAVEL CONSTRUCTION ENTRANCE PAD IN LOCATION SHOWN ON DRAWINGS.
4. INSTALL SILT FENCE IN LOCATIONS SHOWN ON DRAWINGS.
5. INSTALL TEMPORARY DIVERSION CHANNELS AND TEMPORARY SEDIMENT TRAPS IN LOCATIONS ON
DRAWINGS.
6. CLEAR AND GRUB THE SITE.
7. BEGIN EARTHWORK OPERATIONS FOR THE SITE.
8. THE CONTRACTOR SHALL POST THE SEDIMENTATION CERTIFICATE OF APPROVAL AT THE
CONSTRUCTION ENTRANCE AND MAINTAIN COPIES OF THE PROJECT EROSION PERMITS AT THE
ON -SITE OFFICE. ANY CHANGES IN THE PROJECT DESIGN THAT RESULT IN ADDITIONAL
DISTURBANCE, OR CHANGE THE DRAINAGE PATTERNS SHALL BE SUBMITTED TO NCDENR FOR
PERMIT MODIFICATION.
9. THE CONTRACTOR SHALL CONDUCT PROJECT NPDES INSPECTIONS OF EROSION CONTROL MEASURES
AND STORMWATER OULETS ONCE EVERY SEVEN CALENDAR DAYS AND AFTER EVERY RAIN EVENT 1/2
INCH OR GREATER. ALL CONTROL DEVICES SHALL BE MAINTAINED AS SPECIFIED IN THE
NCDENR EROSION & SEDIMENT CONTROL PLANNING AND DESIGN MANUAL. A RAIN GAUGE SHALL
BE INSTALLED AT THE PROJECT SITE TO FACILITATE RAINFALL MONITORING. THE CONTRACTOR
SHALL MAINTAIN THESE RECORDS AT THE ONSITE OFFICE FOR AUDIT BY REGULATORY AGENCIES.
NPDES INSPECTIONS ARE REGUIREO UNTIL PROJECT STABILIZATION IS EVIDENT BY 95%
VEGETATIVE GROWTH FOR AREAS PROVIDED SEEDING, AT SUCH TIME THE CONTRACTOR SHALL
REMOVE ALL TEMPORARY EROSION CONTROL DEVICES.
10. PROVIDE TEMPORARY SEEDING AFTER CLEARING AND GRUBBING OPERATION IF THE AREA IS TO
REMAIN UNDISTURBED FOR MORE THAN 15 DAYS OR 60 CALENDAR DAYS, WHICHEVER IS LESS.
PROVIDE PERMANENT SEEDING WITHIN 15 DAYS OR 60 CALENDAR DAYS, WHICHEVER IS LESS, OF
ESTABLISHING FINAL GRADES. SLOPES SHALL BE SEEDED WITHIN 21 CALENDAR DAYS.
oo
Dewberry
Dewberry & Davis, Inc.
2301 REXWOODS DRIVE
SUITE 200
RALEIGH, NC 27612
PHONE: [phone]
FAX: [phone]
PHASE II EROSION AND SEDIMENT CONSTRUCTION SEQUENCE
1. ALL SEDIMENTATION AND EROSION CONTROL MEASURES FROM PHASE I SHALL REMAIN IN
PLACE.
2. PROVIDE TEMPORARY SEEDING AFTER CLEARING AND GRUBBING IF THE AREA IS TO REMAIN
UNDISTURBED FOR MORE THAN 15 DAYS OR 60 CALENDAR DAYS, WHICHEVER IS LESS.
PROVIDE PERMANENT SEEDING WITHIN 15 DAYS OR 60 CALENDAR DAYS, WHICHEVER IS LESS,
OF ESTABLISHING FINAL GRADES. SLOPES SHALL BE SEEDED WITHIN 21 CALENDAR DAYS.
3. INSTALL FENCE.
4. INSTALL EQUIPMENT.
5. INSTALL ABC ON PAD AND ENTRANCE.
6. THE CONTRACTOR SHALL CONDUCT PROJECT NPDES INSPECTIONS OF EROSION CONTROL
MEASURES AND STORMWATER OUTLETS ONCE EVERY SEVEN CALENDAR DAYS AND AFTER EVERY
RAIN EVENT 1/2 INCH OR GREATER. ALL CONTROL DEVICES SHALL BE MAINTAINED AS
SPECIFIED IN THE NCDENR EROSION & SEDIMENT CONTROL PLANNING AND DESIGN MANUAL.
A RAIN GAUGE SHALL BE INSTALLED AT THE PROJECT SITE TO FACILITATE RAINFALL
MONITORING. THE CONTRACTOR SHALL MAINTAIN THESE RECORDS AT THE ONSITE OFFICE
FOR AUDIT BY REGULATORY AGENCIES. NPDES INSPECTIONS ARE REQUIRED UNTIL PROJECT
STABILIZATION IS EVENT BY 95% VEGETATIVE GROWTH FOR AREAS PROVIDED SEEDING, AT
SUCH TIME THE CONTRACTOR SHALL REMOVE ALL TEMPORARY EROSION CONTROL DEVICES.
7. STORM DRAINAGE INLETS AND OUTLETS SHALL BE PROTECTED WITH APPROPRIATE EROSION
CONTROL MEASURES AT ALL TIMES. RIPRAP OUTLET PROTECTION PADS SHALL BE INSTALLED
AT THE LOCATIONS AND DIMENSIONS SHOWN AS SOON AS EACH STORM DRAIN CHANNEL OR
PIPE RUN IS COMPLETE.
NCAR
AL 9C
U06
C-8
NCDENR STORMWATER PERMIT PACKAGE
STORMWATER DETAILS

\� \\�-- — —
FOREBAY
�FERMANENT SAND FIL
(LEVEL SPREADER,
�LENOTH •,50' r
+�40
04
\ f
,
/
PERMANENT — — — —
�LEVEL SPREADER. A� .
LENGTH 15 10, WIDE ACCESS 12+
DRIVE \:
Y_.
/
11+50
/
/
SITE PLAN
VERTICAL GRAPHIC SCALE
( IN FEET )
1 INCH = 3 FT.
HORIZONTAL GRAPHIC SCALE
( IN FEET )
1 INCH = 30 FT.
fee. Dewberry
Dewberry & Davis, Inc.
2301 REXWOODS DRIVE
SUITE 200
RALEIGH, NO 27612
PHONE: [phone]
FAX: [phone]
n
30
20
DATUM ELEI/
10.00
TIE TO EXISTING
NEW CHAIN
LINK FENCE
TYP.
CONCRETE BEAMS
ELEV. 23.3
TOP OF
10-YEAR, 24-HO
OF
STORAGE.
--
----- -------_
STORMWATER
ELEV 23.56'
-------
-------'
TOP OF BERM.
TREATMENT.
--------
-----
ELEV • 24.0'
ELEV 23.08'
A8C
EMERGENCY OVERLFOW
WEIR. ELEV • 23.4'—
---
7' --- ----- —
'
SAND FILTER
—�
FOREBAY
TOP OF SAND,
BOTTOM ELEV • 20.15
ELEV • 22.15'
SAND FILTER.
SEE DETAIL 'A' THIS
X BORING NO.
8
SHEET BORING NO.
BORING NO
G
20 X BORI APPROX.
SHWL
19
SHWL APPROX.
SHWL APPRO
. 17.95
18.15,
17.16'
SEE NOTE 1
O
c0
N
14�
00
O
r
N
N
N
N
Lo
N
c0
N
(D
N
I-
N
O
N
c0
N
1 1 +00
IL+VV IJ+UU
ALIGNMENT D - SECTION
• 24.0
30'
10' I 10,
ELEV 22.15'
i
FILTER FABRIC j
(TYP.), DITCH AND
BURY EDGES OF
FABRIC A MIN. OF 12'
�w
1�
w MIN. INV.
� ELEV 20.48'
ELEV 20.15,
1 4' DIA. a 0.5FA-H
4' MIN. PERFORATED PIPE
W/SOCK
SEE NOTEiE
_ 4' DIA. Q 0.50%
PERFORATED PIPE
W/SOCK
14+UU
1L
3
CONCRETE BEAMS, ELEV 23.3
3/4' TO 1' LIP ABOVE
FINSHEO GRADE
— FOREBAY
FILTER FABRIC \
(TYP.), DITCH
ANDBURY EDGES
OF FABRIC A
MIN. OF 12'
—11
1 SAND FILTER DEPTH
18' MIN. REQUIRED
II' BY THE STATE BMP
MANUAL (12' ABOVE
UNDERDRAIN)
FILTER FABRIC (TYP.) ( 2' MIN. REQUIRED BY
STATE BMP MANUAL,
NOTES 26.0' 2' PROVIDED
1. SEASONAL HIGH WATER TABLE IS ESTIMATED TO BE AT
ELEVATION 18.15' BASED ON SEASONAL HIGH WATER
ESTIMATION PROVIDED BY LAND MANAGEMENT GROUP, INC.
IN 'STORMWATER BASIN STUDY FOR THE PROPOSED BASIN
AREAS FOR THE PROGRESS ENERGY PLANT, LOCATED NEAR
SOUTHPORT, NC' DATED JANUARY 12, 2009. SEASONAL HIGH
WATER LEVEL HAS NOT YET BEEN VERFIED BY A STATE OF
NC SOIL SCIENTIST.
2. THE BOTTOM OF THE SAND FILTER IS DESIGNED TO BE A
MINIMUM OF 2' ABOVE THE SEASONAL HIGH WATER TABLE, — — — — — — SEASONAL HIGH WATER TABLE ELEV. APPROX. 18.15-- _ _ _
AS INTERPOLATED FROM GROUND ELEVATIONS AND DEPTHS
PROVIDED.
3. SAND MEDIA SHALL BE CLEANED, WASHED, COURSE MASONRY DETAIL " A "
SAND, ASTM C33 OR EQUIVALENT. THE SAND PARTICLES VN C A RO
SHALL BE LESS THAN 2 MN AVERAGE DIAMETER. NITS =0 •...........
4. NO MOTORIZED TRAFFIC ON THE SAND BED ONCE THE SAND 9� E
IS PLACED. d
A
NPx�
C-9
NCDENR STORMWATER PERMIT PACKAGE
STORMWATER DETAILS
15+00